2003-09-18 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.200): Fix problem with obsolete use of
	backslash in symbols.

2003-09-18 20:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: random.scm (14.30), runtime.pkg (14.457): Implement
	external representation for random-state objects.

2003-09-18 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.215): Change release version to 7.7.90
	for test release.

2003-09-16 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.25), xml-struct.scm (1.24): New procedure
	XML-NAME-SIMPLE.  Change printed representation of elements to show
	the simple name.

2003-09-16 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.40): Fix typo in namespace-prefix parsing.

2003-09-15 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.39): Fix bug in handling of namespace
	declarations.

2003-09-13 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.43): Strip double-quote characters from path
	elements.

2003-09-13 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.42): Strip double-quote characters from path
	elements.

2003-09-13 20:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.41): Strip double-quote characters from path
	elements.

2003-09-11 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-parser.scm (1.38), xml-struct.scm (1.23): Change
	namespace URIs to be symbols.

2003-09-08 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: chrset.scm (14.20), equals.scm (14.12), runtime.pkg
	(14.456): Implement equality predicate for character sets.

2003-09-05 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.455), runtime/load.scm (14.66),
	runtime/sfile.scm (14.35), cref/toplev.scm (1.21), sf/butils.scm
	(4.14): Fix definition of FILE-MODIFICATION-TIME<?, and introduce
	new procedure FILE-MODIFICATION-TIME<=?.

2003-08-23 01:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-parser.scm (1.36), xml-parser.scm (1.37): Fix bug in
	parsing of XML declarations.

2003-08-22 11:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.24): Oops... make change to processing
	instructions to match change in parser.

2003-08-21 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prgdbm.c (1.6): Oops -- forgot to include
	dload_initialize_file() when this was changed to be dynamically
	loaded.

2003-08-20 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-struct.scm (1.22), xml.pkg (1.24): New procedure
	XML-NAME-PREFIX.

2003-08-20 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.35): Fix minor bug in syntax of processing
	instructions.

2003-08-18 21:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/htmlmode.scm (1.10): Fix syntax to allow all XML names.

2003-08-06 21:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: malias.scm (1.9), malias.scm (1.10): Change
	GUARANTEE-MAIL-ALIASES so that it reloads the aliases if the file
	is changed.

2003-08-05 12:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.34): Minor tweaks.

2003-08-03 02:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-struct.scm (1.21): Fix typo.

2003-08-03 02:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.33): Fix typo.	Change attribute-defaulting
	errors to use pointer to the attribute rather than the start tag.

2003-08-03 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-parser.scm (1.32), xml-struct.scm (1.20): Supply
	default attributes from DTD when appropriate.

2003-08-03 01:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unicode.scm (1.13): Add appropriate articles to
	wrong-type error messages.

2003-08-03 01:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.23): Use upper case for bucky-bit prefixes.

2003-08-01 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-parser.scm (1.31), xml-output.scm (1.23): Change DTD
	structures to use symbol names that are more closely related to the
	tokens appearing in the XML document.

2003-08-01 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.67): Change syntactic role of vertical bar.

2003-07-31 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.30): Tweak error reporting for processing
	instructions.

2003-07-31 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-struct.scm (1.19), xml.pkg (1.23): Add support for hash
	tables based on XML names.

2003-07-30 22:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.22): Revert to use of lisp-style character
	names, and consistently use lower case forms.

2003-07-30 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.21): Restore BUCKY-BITS->PREFIX as it is
	being used by Edwin.

2003-07-30 22:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.24), edwin/hlpcom.scm (1.127),
	imail/imail-imap.scm (1.199): Eliminate use of WRITE on symbols
	when output isn't intended for READ.

2003-07-30 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.22), xml-chars.scm (1.6), xml-output.scm (1.22),
	xml-parser.scm (1.29), xml-struct.scm (1.18): First draft of XML
	namespace support.

2003-07-30 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: parse.scm (14.42), runtime.pkg (14.454), unpars.scm
	(14.55): Add support for use of backslash as symbol quote
	character.  Fix printing of non-canonical symbols; respect
	canonicalization flag.

2003-07-30 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (14.25): Change EOF object to be an opaque
	type.

2003-07-30 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (14.24): Change EOF object to be an opaque
	type.

2003-07-30 01:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.54): Don't use vertical-bar syntax for
	uninterned symbols when *UNPARSE-UNINTERNED-SYMBOLS-BY-NAME?* is
	true.

2003-07-30 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.28): Fix typo.

2003-07-30 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (14.53), runtime.pkg (14.453): Add support
	for the use of a vertical bar as a syntax for arbitrary symbols, as
	in Common Lisp.

2003-07-30 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.41): Add support for the use of a vertical
	bar as a syntax for arbitrary symbols, as in Common Lisp.

2003-07-30 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.20): Change character-name encoding to
	support arbitrary Unicode characters using #\U+XXXX syntax.  Prefer
	this numeric representation for most ASCII control characters.

2003-07-29 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unicode.scm (1.12), runtime.pkg (14.452): Implement
	UTFxx validity procedures:
	
	    UTF8-STRING-VALID?
	    UTF16-BE-STRING-VALID?
	    UTF16-LE-STRING-VALID?
	    UTF16-STRING-VALID?
	    UTF32-BE-STRING-VALID?
	    UTF32-LE-STRING-VALID?
	    UTF32-STRING-VALID?

2003-07-28 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hashtb.scm (1.27), runtime.pkg (14.451): Implement
	HASH-TABLE/INTERN!.  Rewrite conditionals to use PAIR? rather than
	NULL?.

2003-07-28 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/symbol.scm (1.11): Change SYMBOL-APPEND so that it can be
	used on non-canonical symbols.

2003-07-26 23:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.28): Fix typo.

2003-07-26 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.27): Eliminate some unnecessary uses of
	alphabets.

2003-07-25 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.26): Fix bug in handling of external
	general entities.

2003-07-25 19:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.19): Fix bug in printing non-Unicode
	characters.

2003-07-25 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-struct.scm (1.17): Canonicalize character data, by
	converting wide chars and wide strings to UTF-8 strings, then
	coalescing adjacent strings.

2003-07-25 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.25): Fix some bugs related to processing of
	external entity references.

2003-07-25 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-struct.scm (1.16), xml-output.scm (1.21): Canonicalize
	character data as UTF-8 strings.

2003-07-24 00:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/ntgui.rc (1.13): Can't use PACKAGE_* variables
	here.

2003-07-21 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.18): Fix typo in previous change.

2003-07-21 22:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.guess (11.4), config.sub (11.4): Update to
	newer version.

2003-07-21 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.17): Eliminate unnecessary usage of microcode
	version number.

2003-07-21 22:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.450), utabs.scm (14.17), version.scm
	(14.214): Adapt to new representation used for microcode version
	info.

2003-07-21 22:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.116), confshared.h (11.7), os2pmcon.c
	(1.31), version.h (11.190), ntutl/config.h (1.7), ntutl/makefile
	(1.31), ntutl/makefile.wcc (1.20), ntutl/ntgui.rc (1.12),
	os2utl/config.h (1.7), os2utl/makefile.cmn (1.16): Remove version.h
	and all references to its bindings.  Instead use PACKAGE_*
	variables provided by autoconf.

2003-07-21 22:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.42), generic.scm (1.7): Eliminate
	unnecessary usage of microcode version number.

2003-07-20 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: acconfig.h (11.9), configure.ac (1.1), configure.in
	(11.25), makegen/Makefile.in.in (1.23): Change configuration files
	to use autoconf 2.5x.

2003-07-20 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.guess (11.3), config.sub (11.3): Update to
	newer version.

2003-07-20 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gdbm.scm (1.6): Add support for dynamic loading of gdbm
	primitives.

2003-07-20 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: pgsql.scm (1.2), runtime.pkg (14.449): Fix a handful of
	bugs in the PostgreSQL interface.

2003-07-20 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prpgsql.c (1.5): Fix incorrect signature of
	PQ-RES-STATUS.

2003-07-14 22:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.20): Generalize <string> method to include
	<wide-string>.

2003-07-14 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.43), unix.scm (1.116): Use HTML mode for
	.xsl files.

2003-07-12 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.21), xml-struct.scm (1.15): Export predicates
	for some key data structures.  Allow use of wide strings wherever
	they make sense.

2003-07-12 23:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.20), xml-struct.scm (1.14): Export predicates
	for some key data structures.  Allow use of wide strings wherever
	they make sense.

2003-07-12 00:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-struct.scm (1.13): Allow wide strings as content in
	elements.

2003-07-12 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.115), dosfile.scm (1.42): Add bindings for
	XHTML.

2003-07-11 23:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntsock.c (1.18): Fix pointer-mismatch bug.

2003-07-11 23:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntapi.h (1.16): Add getsockopt and setsockopt.

2003-07-11 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntsock.c (1.17): Set SO_REUSEADDR in
	OS_bind_tcp_server_socket.

2003-07-09 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsock.c (1.31), syscall.h (1.17), uxtop.c (1.30):
	Change OS_bind_tcp_server_socket to set SO_REUSEADDR.

2003-07-09 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.24): Fix typo in last change.

2003-07-09 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: socket.scm (1.23), runtime.pkg (14.448): Split
	OPEN-TCP-SERVER-SOCKET into its component parts.

2003-07-09 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxtop.c (1.29), syscall.h (1.16): Add EADDRINUSE to
	list of supported error codes.

2003-07-03 12:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.19): Emit non-ASCII chars using &#...;
	notation.

2003-07-03 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unicode.scm (1.11): OPEN-WIDE-INPUT-STRING was checking
	to see if its argument was a string rather than a wide string.

2003-06-14 01:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unicode.scm (1.10): Tweak name of internal procedure to
	make indentation work better.

2003-06-08 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: Makefile.in (1.9), ed-ffi.scm (1.36), optiondb.scm
	(1.17), pgsql.scm (1.1), runtime.pkg (14.447): Add initial draft of
	PostgreSQL support.

2003-06-08 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prpgsql.c (1.4): Change PQ-MAKE-EMPTY-PG-RESULT to
	accept weak pair to return result in.

2003-06-08 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcfinal.scm (14.7): Fix typo.

2003-06-08 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.73): Use GC finalizer to maintain
	open-channels list.

2003-06-08 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: gcfinal.scm (14.6), runtime.pkg (14.446): Implement
	MAKE-GC-FINALIZED-OBJECT.

2003-06-07 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.22): Fix bug: OPEN-TCP-SERVER-SOCKET was
	not returning a boolean to OPEN-CHANNEL.

2003-06-06 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prpgsql.c (1.3): Change PQ-EXEC to take a weak-pair
	argument in which to return the result.

2003-06-06 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prpgsql.c (1.2): Pass in pair to procedures that
	connect to server, so that interrupts can be turned on during the
	connect.

2003-06-06 15:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prpgsql.c (1.1), acconfig.h (11.8), configure.in
	(11.24): First draft of PostgreSQL support.

2003-06-06 14:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-optional.scm (1.6): Add prpgsql.

2003-06-06 12:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.19): Update copyright dates.

2003-05-30 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/occur.scm (1.9): In M-x occur, change recursive algorithm
	to iterative, so that large numbers of occurrences don't fail by
	running out of stack.

2003-05-17 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.101), configure.in (11.23),
	cmpauxmd/i386.m4 (1.62), os2utl/makefile.gcc (1.10),
	os2utl/makefile.vac (1.10), os2utl/makefile.wcc (1.11): Eliminate
	use of returned structure in compiled-code interface.  This has
	historically been a source of much trouble, and for little gain. 
	Instead, pass the structure pointer as an argument.

2003-05-16 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: acconfig.h (11.7), configure.in (11.22), confshared.h
	(11.6), ux.c (1.24), ux.h (1.77): Generalize the mmap-based heap
	allocator so that it can be used on any operating system that
	supports the required features.  (This is needed for solaris.)

2003-05-12 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.39): Fix problems that occur when struct
	sigcontext not available.

2003-05-12 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: configure.in (11.21), pruxdld.c (1.18): Add support
	for solaris+gcc.

2003-05-09 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.38): Make sure that "gccode.h" is included
	whenever HAS_COMPILER_SUPPORT is defined.

2003-04-25 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.114): Use texinfo mode for .texi and .texinfo
	files.

2003-04-25 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2io.c (1.13): Use QID_NONE rather than 0 for the
	non-abstract channel descriptor.  The value 0 could be confused
	with a real qid.

2003-04-25 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2io.c (1.11), os2msg.c (1.17), os2msg.h (1.18),
	pros2io.c (1.12): Implement new-style select() mechanism for OS/2.

2003-04-24 23:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.213), microcode/version.h (11.189):
	Update version for impending release.

2003-04-24 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/make.scm (1.14): Update version number to reflect changes.

2003-04-24 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/load.scm (1.16), win32/win_ffi.scm (1.13): Eliminate
	"(load-option 'HASH-TABLE)".

2003-04-24 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.122), microcode/os2pm.scm (1.16),
	pcsample/pcsample.scm (1.6), rcs/load.scm (1.6),
	runtime/os2ctype.scm (1.6): Eliminate "(load-option 'HASH-TABLE)".

2003-04-24 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.43): Update version number to reflect changes.

2003-04-24 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (4.44), compiler/base/make.scm (4.121), sos/load.scm
	(1.15): Update version number to reflect changes.

2003-04-24 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.37): Fix typo.

2003-04-24 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.47): Fix bug: THUNK? was getting called too
	early in the boot load.

2003-04-24 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.18), edwin/calias.scm (1.31),
	edwin/edwin.pkg (1.286): Factor out BUCKY-BITS->PREFIX so that it
	can be reused by Edwin for special characters and mouse buttons.

2003-04-24 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.80): Fix handling of bucky bits so that
	only four bits are generated rather than five.

2003-04-24 20:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.55): Fix bug: RECORD-TYPE-DISPATCH-TAG
	must be an absolute reference.

2003-04-19 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.58): Signal error for (EXPT Z 0.) if (ZERO?
	Z).

2003-04-16 22:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (14.19), runtime.pkg (14.445),
	syntactic-closures.scm (14.16), syntax-transforms.scm (14.7):
	Change DEFINE-SYNTAX so that the right-hand side can be an
	identifier that is bound to a keyword.	This makes
	
		(define-syntax sequence begin)
	
	possible.
	
	Also, remove old kludge to allow
	
		(define-syntax foo (lambda ...))
	
	as acceptable syntax.

2003-04-15 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.17): Change CHAR-CODE-LIMIT to the actual
	Unicode limit, not just one that allows any 21-bit code.

2003-04-14 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: global.scm (14.61), make.scm (14.91), runtime.pkg
	(14.444): Change HOST-BIG-ENDIAN? to compute its value during cold
	load, so that it is as fast as possible.

2003-04-14 15:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unicode.scm (1.9), runtime.pkg (14.443): Add
	host-endian procedures for UTF-32 and UTF-16.  Flesh out the UTF-32
	abstraction to correspond to UTF-16.

2003-04-14 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.57), runtime.pkg (14.442): Fix bug: EXPT
	wasn't handling complex zero right.
	
	Rather than using DEFINE to make exported aliases of many
	arithmetic procedures, use the renaming mechanism of the package
	system.
	
	Export FLO:SIGNIFICAND-DIGITS-BASE-2 and
	FLO:SIGNIFICAND-DIGITS-BASE-10 to global environment.

2003-04-14 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: global.scm (14.60), runtime.pkg (14.441): Implement
	HOST-BIG-ENDIAN?.

2003-04-08 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.30): Fix typo in previous change.

2003-04-07 21:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntio.c (1.30): Fix typo in previous change.

2003-04-07 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intrpt.h (1.24): Use hex notation for interrupt mask
	bits.

2003-04-07 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntio.c (1.29): Fix bug: calls to OS_realloc were
	passing incorrect length argument.  Also: reduce amount of space
	used in select registry.

2003-03-29 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/win_ffi.scm (1.12): Fix another bug hidden by the old
	type-descriptor name of defstruct.

2003-03-29 00:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.34): Eliminate unnecessary newline in
	OS_Variant.

2003-03-29 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntio.c (1.28), ntio.h (1.14), ntsock.c (1.16):
	Initial implementation of new select-registry mechanism.  This
	simply recreates the old behavior with the new interface.

2003-03-24 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosio.c (1.24): Update coding of channel argument
	procedures.

2003-03-24 20:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.51): Fix typos.

2003-03-21 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: genio.scm (1.19), rep.scm (14.61), runtime.pkg
	(14.440), savres.scm (14.44), ttyio.scm (1.15), usrint.scm (1.20):
	Implement runtime side of "--batch-mode" option.

2003-03-21 12:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.115), option.c (1.61), option.h (1.16),
	term.c (1.20): Rename "--suppress-noise" to "--batch-mode".

2003-03-19 23:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/term.c (1.19): Add --suppress-noise command-line
	option.

2003-03-19 22:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.114), option.c (1.60), option.h (1.15): Add
	--suppress-noise command-line option.

2003-03-14 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.29), edwin/clscon.scm (1.14): Finish
	updating MAKE-DEFINE-STRUCTURE-TYPE arguments by removing bootstrap
	scaffolding.

2003-03-14 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.46): Finish updating
	MAKE-DEFINE-STRUCTURE-TYPE arguments by removing bootstrap
	scaffolding.

2003-03-14 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.439): Implement THUNK?.

2003-03-14 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.54): Change call to
	MAKE-DEFINE-STRUCTURE-TYPE so that per-slot lists are constructed
	as vectors.

2003-03-14 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.45): Don't need to allow #F as default-init
	in MAKE-DEFINE-STRUCTURE-TYPE.

2003-03-14 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.44): Add more careful type checking to
	default-inits field of record type.  Allow #F to be used in place
	of (lambda () #F) as default-init.

2003-03-14 15:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uproc.scm (1.15): Implement THUNK?.

2003-03-13 20:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.84): Extend effect of editor variable
	vc-cvs-stay-local to include status inquiries internally performed
	by VC.	This prevents unnecessary network delays in many cases.

2003-03-13 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (14.18), syntax-output.scm (14.10):
	Change expansion of OR to use scode disjunction type.  This
	produces more efficient code, because the compiler recognizes it
	and behaves specially.

2003-03-13 20:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.43): Rewrite safe-accessor generators to
	use their type argument properly.

2003-03-13 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.53), record.scm (1.42), runtime.pkg
	(14.438): Change DEFINE-STRUCTURE to use new procedures
	DEFINE-STRUCTURE/KEYWORD-CONSTRUCTOR and
	DEFINE-STRUCTURE/DEFAULT-VALUE.

2003-03-13 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.28), edwin/clscon.scm (1.13): Change call
	to MAKE-DEFINE-STRUCTURE-TYPE to match new definition.

2003-03-13 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.437): Export
	DEFINE-STRUCTURE/KEYWORD-PARSER*.

2003-03-13 15:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.41): Change MAKE-DEFINE-STRUCTURE-TYPE to
	accept a length rather than an offset.	Also, don't allow the
	default-inits argument to be specified as #F; it must be a list. 
	Implement DEFINE-STRUCTURE/KEYWORD-PARSER* to provide more
	efficient generation of keyword constructors.

2003-03-13 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.52): Eliminate #F argument to
	TYPE-DESCRIPTOR option as it's no longer needed.  Change call to
	MAKE-DEFINE-STRUCTURE-TYPE so that the length of the structure is
	supplied, rather than the offset.

2003-03-13 13:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.44): Eliminate use of DEFINE-STRUCTURE in
	this file.  It's not needed and is unnecessarily constraining the
	design of DEFINE-STRUCTURE.

2003-03-12 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.51), packag.scm (14.43), record.scm
	(1.40): Change DEFINE-STRUCTURE to generate type descriptors for
	all structures, including untagged ones.  This will simplify some
	operations that need access to the type descriptor.
	
	The default name to which the type descriptor is bound has been
	changed to RTD:foo where "foo" is the structure's root name.
	
	For the runtime cold load, allow TYPE-DESCRIPTOR option to accept
	#F as an argument so that the structures defined in "packag.scm"
	don't try to build a type descriptor.  This is important because
	this file is loaded prior to the type-descriptor infrastructure.  A
	consequence of this change is that the TYPE-DESCRIPTOR option no
	longer implies tagging.  This is independently specified by the
	NAMED option, and these two options are permitted to be used
	together.
	
	Add TAG and OFFSET fields to the runtime type descriptor for
	non-record structures.	In the next revision, this will allow
	building more efficient constructors.

2003-03-12 22:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/object.scm (4.19): Use explicit names for type descriptors.

2003-03-12 22:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.122): Fix mistaken reference to
	DEFINE-STRUCTURE type descriptor.

2003-03-12 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.26): Use explicit name for hash-table type
	descriptor.

2003-03-12 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.16), runtime/ystep.scm (1.7), runtime/thread.scm
	(1.40): Fix mistaken reference to DEFINE-STRUCTURE type descriptor.

2003-03-12 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.39): Change both records and named
	structures to store default values as thunks in the type structure,
	which are then called when needed.
	
	Introduce new procedures to get the default value for a slot, given
	the type descriptor, and use them as needed in DEFINE-STRUCTURE,
	rather than just inserting the default-init expression.
	
	Put back the UNPARSER-METHOD argument to MAKE-RECORD-TYPE, and use
	it in DEFINE-STRUCTURE.
	
	Once again, use RECORD-KEYWORD-CONSTRUCTOR in DEFINE-STRUCTURE,
	this time with better results.

2003-03-12 15:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.50): Fix bug: STRUCTURE-TAG/DEFAULT-VALUE
	can't be used on untagged structures.

2003-03-11 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.49), runtime/random.scm (14.27),
	runtime/runtime.pkg (14.436), edwin/clscon.scm (1.12): Change both
	records and named structures to store default values as thunks in
	the type structure, which are then called when needed.
	
	Introduce new procedures to get the default value for a slot, given
	the type descriptor, and use them as needed in DEFINE-STRUCTURE,
	rather than just inserting the default-init expression.
	
	Put back the UNPARSER-METHOD argument to MAKE-RECORD-TYPE, and use
	it in DEFINE-STRUCTURE.
	
	Once again, use RECORD-KEYWORD-CONSTRUCTOR in DEFINE-STRUCTURE,
	this time with better results.

2003-03-10 15:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/reord.scm (1.5), compiler/machines/C/decls.scm
	(1.9), compiler/machines/alpha/decls.scm (1.11),
	compiler/machines/bobcat/decls.scm (4.42),
	compiler/machines/i386/decls.scm (1.14),
	compiler/machines/mips/decls.scm (1.15),
	compiler/machines/sparc/decls.scm (1.9),
	compiler/machines/spectrum/decls.scm (4.40),
	compiler/machines/vax/decls.scm (4.18), runtime/error.scm (14.62),
	runtime/generic.scm (1.6), runtime/infstr.scm (1.18),
	runtime/os2graph.scm (1.23), runtime/process.scm (1.29),
	runtime/ystep.scm (1.6), imail/imail-util.scm (1.43): Eliminate
	incorrect usage of default initializers in DEFINE-STRUCTURE.  These
	initializers contain variable references that are intended to refer
	to other slots in the structure.  The correct usage assumes that
	the initializers are closed in the environment in which the
	DEFINE-STRUCTURE form appears.

2003-03-10 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/compile.sh (1.5): If script is invoked from top-level build
	directory (the usual case), allow user to omit the argument.

2003-03-10 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.38): Fix typo in
	%RECORD-CONSTRUCTOR-GIVEN-NAMES.

2003-03-09 12:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.18): Change START-INDENT to be two
	booleans, INDENT-DTD? and INDENT-ATTRIBUTES?.

2003-03-08 00:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.37): Don't save DEFAULT-RECORD, go back to
	using DEFAULT-VALUES.  DEFAULT-RECORD has the problem that when the
	defaults aren't specified, often the record can't be printed, which
	makes examining the structure painful.

2003-03-07 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.48): Revert earlier change to use
	RECORD-KEYWORD-CONSTRUCTOR, because it doesn't handle default
	values right.
	
	Actually, I don't think it can do so, because DEFINE-STRUCTURE has
	default expressions rather than default values; the expressions are
	intended to be evaluated within the context of the constructor.  I
	think this is a design flaw, but I'm not yet sure whether it is OK
	to fix the design.

2003-03-07 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.47): Fix thinko in previous change.

2003-03-07 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/pic-read.scm (1.9): Use angle notation for type descriptor.

2003-03-07 21:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/abbrev.scm (1.10), imail/imail-core.scm (1.151): Use angle
	notation for type descriptor.

2003-03-07 21:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: symbol.scm (1.10), runtime.pkg (14.435): Implement
	GUARANTEE- procedures for symbols.

2003-03-07 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml.pkg (1.19), xml/xml-output.scm (1.17), xml/xml-struct.scm
	(1.12), sos/method.scm (1.15): Use angle notation for type
	descriptor.

2003-03-07 21:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/parser.pkg (1.22): Export GUARANTEE-PARSER-MACROS.

2003-03-07 21:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: chrset.scm (14.19), mit-syntax.scm (14.17),
	syntactic-closures.scm (14.15), syntax-transforms.scm (14.6): Use
	angle notation for type descriptor.

2003-03-07 21:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.36): Don't use WRITE-TO-STRING in
	->TYPE-NAME; it gets called too early in the cold load.

2003-03-07 21:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.46), port.scm (1.30): Fix typo in
	previous change.

2003-03-07 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: regexp.scm (1.13), runtime.pkg (14.434), unicode.scm
	(1.8): Export some syntactic-environment procedures.

2003-03-07 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.433): Export some syntactic-environment
	procedures.

2003-03-07 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: port.scm (1.29), record.scm (1.35): Use angle notation
	for type descriptor.

2003-03-07 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-rules.scm (14.6): Use DEFINE-RECORD-TYPE to make
	record descriptions more succinct.

2003-03-07 16:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (14.14): Use DEFINE-RECORD-TYPE to
	make record descriptions more succinct.

2003-03-07 15:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.27): Use DEFINE-RECORD-TYPE to make
	record descriptions more succinct.

2003-03-07 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.56): Use DEFINE-RECORD-TYPE to make
	record descriptions more succinct.

2003-03-07 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.60): Use DEFINE-RECORD-TYPE to make record
	descriptions more succinct.

2003-03-07 15:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/port.scm (1.28): Use DEFINE-RECORD-TYPE to make record
	descriptions more succinct.

2003-03-07 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/object.scm (1.8): Use DEFINE-RECORD-TYPE to make record
	descriptions more succinct.

2003-03-07 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.66): Use DEFINE-RECORD-TYPE to make record
	descriptions more succinct.

2003-03-07 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/pic-reco.scm (1.11): Use DEFINE-RECORD-TYPE to make record
	descriptions more succinct.

2003-03-07 14:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.45): Use DEFINE-RECORD-TYPE to make record
	descriptions more succinct.

2003-03-07 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.34): Remove angle brackets ("<...>") from
	record-type name.

2003-03-07 13:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.44): Use RECORD-KEYWORD-CONSTRUCTOR.

2003-03-07 13:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: record.scm (1.33), runtime.pkg (14.432): Implement
	RECORD-KEYWORD-CONSTRUCTOR.

2003-03-07 00:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.150): Rename RECORD-COPY to COPY-RECORD.

2003-03-07 00:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.43), port.scm (1.27), record.scm (1.32),
	runtime.pkg (14.431): Revamp the record abstraction.  Record types
	now have a "default record" that can be used as a template to speed
	up record construction, and to hold default slot values.  Eliminate
	optional print-method argument to MAKE-RECORD-TYPE, replacing it
	with an optional default-values argument.  Tune record constructors
	to be very fast for those cases where it is easy to do so.  Change
	RECORD-COPY to COPY-RECORD.

2003-03-07 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.36): Revert most of previous change. 
	Instead introduce new procedures LIST?->LENGTH and
	LIST-OF-TYPE?->LENGTH (yes, I know these names suck; I'm open to
	suggestions).  Also introduce corresponding GUARANTEE procedures.

2003-03-06 10:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.35): Change LIST?, ALIST?, and LIST-OF-TYPE?
	to return the length of the list when true.  New procedures
	GUARANTEE-LIST, GUARANTEE-ALIST, and GUARANTEE-LIST-OF-TYPE. 
	Replace GUARANTEE-INDEX/LIST with GUARANTEE-INDEX-FIXNUM.

2003-03-06 00:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.100): Eliminate long-unused support for
	applicable records.

2003-03-06 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edtstr.scm (1.31): Change name of button type from
	BUTTON-RECORD-TYPE to <BUTTON>.

2003-03-06 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.16), edwin/edtstr.scm (1.30): Fix
	mistake in definition of DEFINE-RECORD-TYPE: fields are in CDDDDR
	of form, not in the fifth element.

2003-03-05 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.99): Eliminate long-unused support for
	applicable records.

2003-03-04 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml.pkg (1.18): New procedure XML->WIDE-STRING.

2003-03-04 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.16): Restructure XML output procedures to
	take a rest argument that is a list of keyword options.  At
	present, there is only one option, 'start-indent, which turns the
	indentation on or off.

2003-03-03 07:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.13): Fix typo.

2003-03-01 22:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.24): Fix several parser bugs that were
	found by the conformance tests.

2003-03-01 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-struct.scm (1.11): Don't allow whitespace in DTD.

2003-03-01 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.23): Reject documents that contain entity
	references whose replacement text isn't fully defined.

2003-03-01 11:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: test-parser.scm (1.10), xml.pkg (1.17), xml-output.scm
	(1.15), xml-parser.scm (1.22), xml-struct.scm (1.10): Major
	rewrite, primarily to eliminate XML-UNINTERPRETED, replacing it
	with XML-ENTITY-REF and XML-PARAMETER-ENTITY-REF.  Also add careful
	type checking to data structures, so that argument structure is
	verified.

2003-03-01 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unicode.scm (1.7): Fix logic error in UTF-8 decoding.

2003-02-27 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.90), parser-buffer.scm (1.8), runtime.pkg
	(14.430), unicode.scm (1.6): Major rewrite of Unicode support.	New
	design supports "wide" characters and strings, and has support for
	UTF-8, UTF-16, and UTF-32 encodings.

2003-02-27 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/object.h (9.54), runtime/char.scm (14.16): Change
	character representation to have 21 code bits and 4 bucky bits. 
	This new representation allows all Unicode characters to be
	represented.

2003-02-27 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/strnin.scm (14.12): Allow OPEN-INPUT-STRING to accept #F
	for optional arguments.

2003-02-25 19:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.53): Change GUARANTEE-SUBSTRING-END-INDEX
	to take a length argument rather than a string argument.

2003-02-25 15:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: motcom.scm (1.51), modefs.scm (1.164): Remove references
	to #\T- characters.

2003-02-25 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.12): Add GUARANTEE-LIMITED-INDEX-FIXNUM.

2003-02-25 15:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.11): Add GUARANTEE-INDEX-FIXNUM.

2003-02-25 13:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.66): Add VECTOR-OF-TYPE? to indentation
	table.

2003-02-24 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.429), string.scm (14.51), string.scm
	(14.52): Export "guarantee" procedures for string indices.

2003-02-24 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.50), runtime.pkg (14.428): Export
	"guarantee" procedures for string indices.

2003-02-19 12:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.65): Add LIST-OF-TYPE? to indentation table.

2003-02-14 13:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* Clean.sh (1.7), README.txt (1.3), Setup.sh (1.10), Tags.sh (1.4),
	compiler/Clean.sh (1.8), compiler/README (1.2), compiler/Setup.sh
	(1.6), compiler/Stage.sh (1.5), compiler/Tags.sh (1.4),
	edwin/Clean.sh (1.9), edwin/schmod.scm (1.64), etc/Clean.sh (1.12),
	etc/Setup.sh (1.9), etc/Stage.sh (1.6), etc/Tags.sh (1.4),
	etc/compile.scm (1.7), microcode/Clean.sh (1.4), microcode/Setup.sh
	(1.8), microcode/avltree.c (1.8), microcode/avltree.h (1.7),
	microcode/bchmmg.c (9.104), microcode/boot.c (9.113),
	microcode/ntgui.c (1.31), microcode/ntio.c (1.27),
	microcode/ntscmlib.h (1.12), microcode/ntscreen.c (1.50),
	microcode/nttop.c (1.33), microcode/nttrap.c (1.26),
	microcode/os2pm.scm (1.15), microcode/os2pmcon.c (1.29),
	microcode/cmpauxmd/makefile (1.10), microcode/ntutl/config.bat
	(1.7), microcode/ntutl/ntgui.rc (1.11), microcode/ntutl/scheme16.c
	(1.14), microcode/ntutl/scheme16.def (1.5),
	microcode/ntutl/scheme16.mak (1.5), microcode/ntutl/scheme31.c
	(1.13), microcode/ntutl/scheme31.def (1.4),
	microcode/ntutl/scheme32.c (1.20), microcode/ntutl/scheme32.def
	(1.4), microcode/ntutl/setenv.bat (1.2),
	microcode/ntutl/wconfig.bat (1.4), microcode/os2utl/config.cmd
	(1.5), runtime/dragon4.scm (1.18), runtime/mit-syntax.scm (14.15),
	runtime/syntax-transforms.scm (14.5), runtime-check/Clean.sh (1.6),
	runtime-check/Setup.sh (1.8), swat/c/widget-c-mit.c (1.2),
	swat/scheme/baseobj.scm (1.2), swat/scheme/mit-xhooks.scm (1.7),
	win32/dibutils/dibutils.rc (1.2): Change program name to MIT/GNU
	Scheme.

2003-02-14 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* Clean.sh (1.6), Makefile.in (1.21), Makefile.std (1.13), Setup.sh
	(1.9), Tags.sh (1.3), configure.in (1.7), 6001/6001.cbf (1.9),
	6001/6001.pkg (1.16), 6001/6001.sf (1.15), 6001/arith.scm (1.13),
	6001/edextra.scm (1.36), 6001/floppy.scm (1.28), 6001/make.scm
	(15.36), 6001/nodefs.scm (1.15), 6001/pic-imag.scm (1.12),
	6001/pic-ops.scm (1.8), 6001/pic-read.scm (1.8), 6001/pic-reco.scm
	(1.10), 6001/picture.scm (1.32), compiler/Clean.sh (1.7),
	compiler/Setup.sh (1.5), compiler/Stage.sh (1.4), compiler/Tags.sh
	(1.3), compiler/configure (1.6), compiler/back/asmmac.scm (1.19),
	compiler/back/asutl.scm (1.5), compiler/back/bittop.scm (1.24),
	compiler/back/bitutl.scm (1.12), compiler/back/insseq.scm (4.6),
	compiler/back/lapgn1.scm (4.20), compiler/back/lapgn2.scm (1.23),
	compiler/back/lapgn3.scm (4.17), compiler/back/linear.scm (4.19),
	compiler/back/mermap.scm (1.7), compiler/back/regmap.scm (4.16),
	compiler/back/syerly.scm (1.14), compiler/back/symtab.scm (1.49),
	compiler/back/syntax.scm (1.31), compiler/base/asstop.scm (1.14),
	compiler/base/blocks.scm (4.17), compiler/base/cfg1.scm (4.9),
	compiler/base/cfg2.scm (4.6), compiler/base/cfg3.scm (4.7),
	compiler/base/constr.scm (1.6), compiler/base/contin.scm (4.11),
	compiler/base/crsend.scm (1.15), compiler/base/crstop.scm (1.15),
	compiler/base/ctypes.scm (4.18), compiler/base/debug.scm (4.18),
	compiler/base/enumer.scm (4.6), compiler/base/infnew.scm (4.14),
	compiler/base/lvalue.scm (4.28), compiler/base/macros.scm (4.31),
	compiler/base/make.scm (4.120), compiler/base/mvalue.scm (3.3),
	compiler/base/object.scm (4.11), compiler/base/pmerly.scm (1.11),
	compiler/base/pmlook.scm (1.11), compiler/base/pmpars.scm (1.9),
	compiler/base/proced.scm (4.25), compiler/base/refctx.scm (1.5),
	compiler/base/rvalue.scm (4.10), compiler/base/scode.scm (4.16),
	compiler/base/sets.scm (4.4), compiler/base/subprb.scm (4.10),
	compiler/base/switch.scm (4.28), compiler/base/toplev.scm (4.64),
	compiler/base/utils.scm (4.27), compiler/etc/asm.scm (1.5),
	compiler/etc/comcmp.scm (1.13), compiler/etc/comfiles.scm (1.9),
	compiler/etc/disload.scm (1.14), compiler/etc/stackp.scm (1.9),
	compiler/etc/xcbfdir.scm (1.11), compiler/fggen/canon.scm (1.25),
	compiler/fggen/declar.scm (1.8), compiler/fggen/fggen.scm (4.39),
	compiler/fgopt/blktyp.scm (4.18), compiler/fgopt/closan.scm (4.32),
	compiler/fgopt/conect.scm (4.8), compiler/fgopt/contan.scm (4.12),
	compiler/fgopt/delint.scm (1.6), compiler/fgopt/desenv.scm (4.7),
	compiler/fgopt/envopt.scm (1.12), compiler/fgopt/folcon.scm (4.11),
	compiler/fgopt/offset.scm (4.11), compiler/fgopt/operan.scm (4.10),
	compiler/fgopt/order.scm (4.19), compiler/fgopt/outer.scm (4.8),
	compiler/fgopt/param.scm (1.6), compiler/fgopt/reord.scm (1.4),
	compiler/fgopt/reteqv.scm (1.4), compiler/fgopt/reuse.scm (1.10),
	compiler/fgopt/sideff.scm (1.11), compiler/fgopt/simapp.scm (4.11),
	compiler/fgopt/simple.scm (4.9), compiler/fgopt/subfre.scm (1.10),
	compiler/fgopt/varind.scm (1.7), compiler/machines/C/compiler.cbf
	(1.5), compiler/machines/C/compiler.pkg (1.16),
	compiler/machines/C/compiler.sf (1.11),
	compiler/machines/C/cout.scm (1.23), compiler/machines/C/ctop.scm
	(1.15), compiler/machines/C/cutl.scm (1.4),
	compiler/machines/C/decls.scm (1.8), compiler/machines/C/lapgen.scm
	(1.16), compiler/machines/C/machin.scm (1.10),
	compiler/machines/C/make.scm (1.5), compiler/machines/C/rgspcm.scm
	(1.5), compiler/machines/C/rules1.scm (1.10),
	compiler/machines/C/rules2.scm (1.5),
	compiler/machines/C/rules3.scm (1.13),
	compiler/machines/C/rules4.scm (1.4),
	compiler/machines/C/rulfix.scm (1.7),
	compiler/machines/C/rulflo.scm (1.9),
	compiler/machines/C/rulrew.scm (1.6),
	compiler/machines/alpha/assmd.scm (1.6),
	compiler/machines/alpha/coerce.scm (1.5),
	compiler/machines/alpha/compiler.cbf (1.5),
	compiler/machines/alpha/compiler.pkg (1.19),
	compiler/machines/alpha/compiler.sf (1.12),
	compiler/machines/alpha/dassm1.scm (1.6),
	compiler/machines/alpha/dassm2.scm (1.6),
	compiler/machines/alpha/dassm3.scm (1.4),
	compiler/machines/alpha/decls.scm (1.10),
	compiler/machines/alpha/inerly.scm (1.8),
	compiler/machines/alpha/insmac.scm (1.8),
	compiler/machines/alpha/instr1.scm (1.8),
	compiler/machines/alpha/instr2.scm (1.6),
	compiler/machines/alpha/instr3.scm (1.6),
	compiler/machines/alpha/lapgen.scm (1.11),
	compiler/machines/alpha/lapopt.scm (1.4),
	compiler/machines/alpha/machin.scm (1.10),
	compiler/machines/alpha/make.scm (1.6),
	compiler/machines/alpha/rgspcm.scm (1.4),
	compiler/machines/alpha/rules1.scm (1.6),
	compiler/machines/alpha/rules2.scm (1.5),
	compiler/machines/alpha/rules3.scm (1.12),
	compiler/machines/alpha/rules4.scm (1.6),
	compiler/machines/alpha/rulfix.scm (1.7),
	compiler/machines/alpha/rulflo.scm (1.8),
	compiler/machines/alpha/rulrew.scm (1.5),
	compiler/machines/bobcat/assmd.scm (1.41),
	compiler/machines/bobcat/coerce.scm (1.13),
	compiler/machines/bobcat/compiler.cbf (1.5),
	compiler/machines/bobcat/compiler.pkg (1.56),
	compiler/machines/bobcat/compiler.sf (1.24),
	compiler/machines/bobcat/dassm1.scm (4.24),
	compiler/machines/bobcat/dassm2.scm (4.27),
	compiler/machines/bobcat/dassm3.scm (4.11),
	compiler/machines/bobcat/decls.scm (4.41),
	compiler/machines/bobcat/flinstr1.scm (1.6),
	compiler/machines/bobcat/flinstr2.scm (1.6),
	compiler/machines/bobcat/inerly.scm (1.13),
	compiler/machines/bobcat/insmac.scm (1.134),
	compiler/machines/bobcat/instr1.scm (1.70),
	compiler/machines/bobcat/instr2.scm (1.23),
	compiler/machines/bobcat/instr3.scm (1.22),
	compiler/machines/bobcat/instr4.scm (1.8),
	compiler/machines/bobcat/insutl.scm (1.11),
	compiler/machines/bobcat/lapgen.scm (4.55),
	compiler/machines/bobcat/lapopt.scm (1.4),
	compiler/machines/bobcat/machin.scm (4.36),
	compiler/machines/bobcat/make.scm-68020 (4.91),
	compiler/machines/bobcat/make.scm-68040 (4.92),
	compiler/machines/bobcat/mc68ktgl.scm (1.5),
	compiler/machines/bobcat/rgspcm.scm (4.5),
	compiler/machines/bobcat/rules1.scm (4.41),
	compiler/machines/bobcat/rules2.scm (4.17),
	compiler/machines/bobcat/rules3.scm (4.45),
	compiler/machines/bobcat/rules4.scm (4.17),
	compiler/machines/bobcat/rulrew.scm (1.9),
	compiler/machines/i386/assmd.scm (1.8),
	compiler/machines/i386/coerce.scm (1.5),
	compiler/machines/i386/compiler.cbf (1.6),
	compiler/machines/i386/compiler.pkg (1.31),
	compiler/machines/i386/compiler.sf (1.20),
	compiler/machines/i386/dassm1.scm (1.15),
	compiler/machines/i386/dassm2.scm (1.14),
	compiler/machines/i386/dassm3.scm (1.12),
	compiler/machines/i386/decls.scm (1.13),
	compiler/machines/i386/inerly.scm (1.9),
	compiler/machines/i386/insmac.scm (1.19),
	compiler/machines/i386/instr1.scm (1.18),
	compiler/machines/i386/instr2.scm (1.12),
	compiler/machines/i386/instrf.scm (1.20),
	compiler/machines/i386/insutl.scm (1.13),
	compiler/machines/i386/lapgen.scm (1.34),
	compiler/machines/i386/lapopt.scm (1.8),
	compiler/machines/i386/machin.scm (1.21),
	compiler/machines/i386/make.scm (1.8),
	compiler/machines/i386/pc-make.scm (1.4),
	compiler/machines/i386/rgspcm.scm (1.6),
	compiler/machines/i386/rules1.scm (1.21),
	compiler/machines/i386/rules2.scm (1.11),
	compiler/machines/i386/rules3.scm (1.40),
	compiler/machines/i386/rules4.scm (1.10),
	compiler/machines/i386/rulfix.scm (1.36),
	compiler/machines/i386/rulflo.scm (1.27),
	compiler/machines/i386/rulrew.scm (1.16),
	compiler/machines/mips/assmd.scm (1.7),
	compiler/machines/mips/coerce.scm (1.4),
	compiler/machines/mips/compiler.cbf (1.5),
	compiler/machines/mips/compiler.pkg (1.26),
	compiler/machines/mips/compiler.sf-big (1.14),
	compiler/machines/mips/compiler.sf-little (1.14),
	compiler/machines/mips/dassm1.scm (1.9),
	compiler/machines/mips/dassm2.scm (1.9),
	compiler/machines/mips/dassm3.scm (1.6),
	compiler/machines/mips/decls.scm (1.14),
	compiler/machines/mips/inerly.scm (1.8),
	compiler/machines/mips/insmac.scm (1.8),
	compiler/machines/mips/instr1.scm (1.11),
	compiler/machines/mips/instr2a.scm (1.9),
	compiler/machines/mips/instr2b.scm (1.8),
	compiler/machines/mips/instr3.scm (1.7),
	compiler/machines/mips/lapgen.scm (1.20),
	compiler/machines/mips/lapopt.scm (1.4),
	compiler/machines/mips/machin.scm (1.17),
	compiler/machines/mips/make.scm-big (4.91),
	compiler/machines/mips/make.scm-little (4.91),
	compiler/machines/mips/mips.scm (1.6),
	compiler/machines/mips/rgspcm.scm (1.4),
	compiler/machines/mips/rules1.scm (1.9),
	compiler/machines/mips/rules2.scm (1.5),
	compiler/machines/mips/rules3.scm (1.22),
	compiler/machines/mips/rules4.scm (1.6),
	compiler/machines/mips/rulfix.scm (1.13),
	compiler/machines/mips/rulflo.scm (1.12),
	compiler/machines/mips/rulrew.scm (1.9),
	compiler/machines/sparc/assmd.scm (1.6),
	compiler/machines/sparc/cf.h-sparc (1.4),
	compiler/machines/sparc/cmpaux-sparc.m4 (1.4),
	compiler/machines/sparc/cmpint-sparc.h (1.4),
	compiler/machines/sparc/coerce.scm (1.4),
	compiler/machines/sparc/decls.scm (1.8),
	compiler/machines/sparc/inerly.scm (1.8),
	compiler/machines/sparc/insmac.scm (1.7),
	compiler/machines/sparc/instr1.scm (1.6),
	compiler/machines/sparc/instr2a.scm (1.6),
	compiler/machines/sparc/instr2b.scm (1.6),
	compiler/machines/sparc/instr3.scm (1.6),
	compiler/machines/sparc/lapgen.scm (1.7),
	compiler/machines/sparc/lapopt.scm (1.4),
	compiler/machines/sparc/machin.scm (1.5),
	compiler/machines/sparc/make.scm (1.5),
	compiler/machines/sparc/rgspcm.scm (1.4),
	compiler/machines/sparc/rules1.scm (1.4),
	compiler/machines/sparc/rules2.scm (1.4),
	compiler/machines/sparc/rules3.scm (1.6),
	compiler/machines/sparc/rules4.scm (1.4),
	compiler/machines/sparc/rulfix.scm (1.4),
	compiler/machines/sparc/rulflo.scm (1.6),
	compiler/machines/sparc/rulrew.scm (1.4),
	compiler/machines/spectrum/assmd.scm (1.35),
	compiler/machines/spectrum/coerce.scm (1.8),
	compiler/machines/spectrum/compiler.cbf (1.5),
	compiler/machines/spectrum/compiler.pkg (1.56),
	compiler/machines/spectrum/compiler.sf (1.24),
	compiler/machines/spectrum/dassm1.scm (4.24),
	compiler/machines/spectrum/dassm2.scm (4.25),
	compiler/machines/spectrum/dassm3.scm (1.5),
	compiler/machines/spectrum/decls.scm (4.39),
	compiler/machines/spectrum/inerly.scm (1.8),
	compiler/machines/spectrum/insmac.scm (1.8),
	compiler/machines/spectrum/instr1.scm (1.8),
	compiler/machines/spectrum/instr2.scm (1.13),
	compiler/machines/spectrum/instr3.scm (1.7),
	compiler/machines/spectrum/lapgen.scm (4.52),
	compiler/machines/spectrum/lapopt.scm (1.17),
	compiler/machines/spectrum/machin.scm (4.32),
	compiler/machines/spectrum/make.scm (4.92),
	compiler/machines/spectrum/rgspcm.scm (4.6),
	compiler/machines/spectrum/rules1.scm (4.38),
	compiler/machines/spectrum/rules2.scm (4.17),
	compiler/machines/spectrum/rules3.scm (4.46),
	compiler/machines/spectrum/rules4.scm (4.15),
	compiler/machines/spectrum/rulfix.scm (4.52),
	compiler/machines/spectrum/rulflo.scm (4.44),
	compiler/machines/spectrum/rulrew.scm (1.15),
	compiler/machines/vax/assmd.scm (4.11),
	compiler/machines/vax/coerce.scm (1.7),
	compiler/machines/vax/compiler.cbf (1.8),
	compiler/machines/vax/compiler.pkg (1.28),
	compiler/machines/vax/compiler.sf (1.15),
	compiler/machines/vax/dassm1.scm (4.11),
	compiler/machines/vax/dassm2.scm (4.17),
	compiler/machines/vax/dassm3.scm (1.6),
	compiler/machines/vax/decls.scm (4.17),
	compiler/machines/vax/dsyn.scm (1.14),
	compiler/machines/vax/inerly.scm (1.12),
	compiler/machines/vax/insmac.scm (1.19),
	compiler/machines/vax/instr1.scm (1.12),
	compiler/machines/vax/instr2.scm (1.13),
	compiler/machines/vax/instr3.scm (1.16),
	compiler/machines/vax/insutl.scm (4.6),
	compiler/machines/vax/lapgen.scm (4.20),
	compiler/machines/vax/lapopt.scm (1.4),
	compiler/machines/vax/machin.scm (4.15),
	compiler/machines/vax/make.scm (4.91),
	compiler/machines/vax/rgspcm.scm (4.5),
	compiler/machines/vax/rules1.scm (4.10),
	compiler/machines/vax/rules2.scm (4.7),
	compiler/machines/vax/rules3.scm (4.16),
	compiler/machines/vax/rules4.scm (4.7),
	compiler/machines/vax/rulfix.scm (1.10),
	compiler/machines/vax/rulrew.scm (1.5), compiler/rtlbase/regset.scm
	(1.6), compiler/rtlbase/rgraph.scm (4.10),
	compiler/rtlbase/rtlcfg.scm (4.12), compiler/rtlbase/rtlcon.scm
	(4.32), compiler/rtlbase/rtlexp.scm (4.22),
	compiler/rtlbase/rtline.scm (4.13), compiler/rtlbase/rtlobj.scm
	(4.14), compiler/rtlbase/rtlreg.scm (4.12),
	compiler/rtlbase/rtlty1.scm (4.25), compiler/rtlbase/rtlty2.scm
	(4.15), compiler/rtlbase/valclass.scm (1.9),
	compiler/rtlgen/fndblk.scm (4.14), compiler/rtlgen/fndvar.scm
	(1.9), compiler/rtlgen/opncod.scm (4.72),
	compiler/rtlgen/rgcomb.scm (4.23), compiler/rtlgen/rgproc.scm
	(4.16), compiler/rtlgen/rgretn.scm (4.16),
	compiler/rtlgen/rgrval.scm (4.25), compiler/rtlgen/rgstmt.scm
	(4.19), compiler/rtlgen/rtlgen.scm (4.32),
	compiler/rtlopt/ralloc.scm (1.20), compiler/rtlopt/rcompr.scm
	(1.17), compiler/rtlopt/rcse1.scm (4.26), compiler/rtlopt/rcse2.scm
	(4.16), compiler/rtlopt/rcseep.scm (4.9),
	compiler/rtlopt/rcseht.scm (4.15), compiler/rtlopt/rcserq.scm
	(4.9), compiler/rtlopt/rcsesr.scm (4.6), compiler/rtlopt/rdebug.scm
	(1.6), compiler/rtlopt/rdflow.scm (1.6), compiler/rtlopt/rerite.scm
	(1.6), compiler/rtlopt/rinvex.scm (1.12), compiler/rtlopt/rlife.scm
	(1.63), compiler/rtlopt/rtlcsm.scm (1.4), cref/Makefile.in (1.4),
	cref/anfile.scm (1.9), cref/conpkg.scm (1.16), cref/cref.cbf (1.5),
	cref/cref.pkg (1.12), cref/cref.sf (1.17), cref/forpkg.scm (1.12),
	cref/make.scm (1.27), cref/mset.scm (1.4), cref/object.scm (1.16),
	cref/redpkg.scm (1.28), cref/toplev.scm (1.20), cref/triv.pkg
	(1.9), edwin/Clean.sh (1.8), edwin/Makefile.in (1.6),
	edwin/abbrev.scm (1.9), edwin/ansi.scm (1.10), edwin/argred.scm
	(1.36), edwin/artdebug.scm (1.33), edwin/autold.scm (1.65),
	edwin/autosv.scm (1.37), edwin/basic.scm (1.143), edwin/bios.scm
	(1.7), edwin/bufcom.scm (1.110), edwin/buffer.scm (1.190),
	edwin/buffrm.scm (1.62), edwin/bufinp.scm (1.11), edwin/bufmnu.scm
	(1.134), edwin/bufout.scm (1.16), edwin/bufset.scm (1.15),
	edwin/bufwfs.scm (1.23), edwin/bufwin.scm (1.313), edwin/bufwiu.scm
	(1.37), edwin/bufwmc.scm (1.21), edwin/c-mode.scm (1.63),
	edwin/calias.scm (1.30), edwin/cinden.scm (1.23), edwin/class.scm
	(1.75), edwin/clscon.scm (1.11), edwin/clsmac.scm (1.13),
	edwin/comatch.scm (1.7), edwin/comhst.scm (1.9), edwin/comint.scm
	(1.32), edwin/comman.scm (1.88), edwin/compile.scm (1.17),
	edwin/comred.scm (1.126), edwin/comtab.scm (1.75), edwin/comwin.scm
	(1.150), edwin/curren.scm (1.147), edwin/dabbrev.scm (1.7),
	edwin/debian-changelog.scm (1.9), edwin/debug.scm (1.65),
	edwin/debuge.scm (1.57), edwin/decls.scm (1.73), edwin/dired.scm
	(1.193), edwin/diros2.scm (1.7), edwin/dirunx.scm (1.16),
	edwin/dirw32.scm (1.7), edwin/display.scm (1.10), edwin/docstr.scm
	(1.7), edwin/dos.scm (1.56), edwin/doscom.scm (1.6),
	edwin/dosfile.scm (1.41), edwin/dosproc.scm (1.12),
	edwin/dosshell.scm (1.8), edwin/ed-ffi.scm (1.54), edwin/editor.scm
	(1.258), edwin/edtfrm.scm (1.94), edwin/edtstr.scm (1.29),
	edwin/edwin.cbf (1.6), edwin/edwin.ldr (1.75), edwin/edwin.pkg
	(1.285), edwin/edwin.sf (1.32), edwin/evlcom.scm (1.68),
	edwin/eystep.scm (1.9), edwin/filcom.scm (1.226), edwin/fileio.scm
	(1.161), edwin/fill.scm (1.73), edwin/grpops.scm (1.31),
	edwin/hlpcom.scm (1.126), edwin/htmlmode.scm (1.9), edwin/image.scm
	(1.140), edwin/info.scm (1.140), edwin/input.scm (1.105),
	edwin/intmod.scm (1.119), edwin/iserch.scm (1.26),
	edwin/javamode.scm (1.14), edwin/key-w32.scm (1.6),
	edwin/key-x11.scm (1.8), edwin/keymap.scm (1.20),
	edwin/keyparse.scm (1.6), edwin/kilcom.scm (1.75), edwin/kmacro.scm
	(1.47), edwin/lincom.scm (1.127), edwin/linden.scm (1.129),
	edwin/loadef.scm (1.48), edwin/lspcom.scm (1.163), edwin/macros.scm
	(1.75), edwin/make.scm (3.118), edwin/malias.scm (1.8),
	edwin/manual.scm (1.19), edwin/midas.scm (1.25), edwin/modefs.scm
	(1.163), edwin/modes.scm (1.38), edwin/modlin.scm (1.26),
	edwin/modwin.scm (1.45), edwin/motcom.scm (1.50), edwin/motion.scm
	(1.91), edwin/mousecom.scm (1.8), edwin/nntp.scm (1.27),
	edwin/notify.scm (1.23), edwin/nvector.scm (1.11), edwin/occur.scm
	(1.8), edwin/os2.scm (1.54), edwin/os2com.scm (1.8),
	edwin/os2term.scm (1.25), edwin/outline.scm (1.12),
	edwin/pasmod.scm (1.54), edwin/paths.scm (1.18), edwin/print.scm
	(1.23), edwin/process.scm (1.65), edwin/prompt.scm (1.201),
	edwin/pwedit.scm (1.11), edwin/pwparse.scm (1.4),
	edwin/rcsparse.scm (1.6), edwin/reccom.scm (1.17), edwin/regcom.scm
	(1.25), edwin/regexp.scm (1.81), edwin/regops.scm (1.91),
	edwin/rename.scm (1.11), edwin/replaz.scm (1.83), edwin/rfc822.scm
	(3.6), edwin/ring.scm (1.15), edwin/rmail.scm (1.75),
	edwin/rmailsrt.scm (1.16), edwin/rmailsum.scm (1.39),
	edwin/schmod.scm (1.63), edwin/scrcom.scm (1.11), edwin/screen.scm
	(1.121), edwin/search.scm (1.158), edwin/sendmail.scm (1.81),
	edwin/sercom.scm (1.68), edwin/shell.scm (1.26), edwin/simple.scm
	(1.57), edwin/snr.scm (1.64), edwin/sort.scm (1.11),
	edwin/strpad.scm (1.11), edwin/strtab.scm (1.50), edwin/struct.scm
	(1.98), edwin/syntax.scm (1.92), edwin/tagutl.scm (1.62),
	edwin/techinfo.scm (1.8), edwin/telnet.scm (1.17),
	edwin/termcap.scm (1.9), edwin/texcom.scm (1.49), edwin/things.scm
	(1.91), edwin/tparse.scm (1.78), edwin/tterm.scm (1.38),
	edwin/tximod.scm (1.28), edwin/txtprp.scm (1.26), edwin/undo.scm
	(1.62), edwin/unix.scm (1.113), edwin/utils.scm (1.54),
	edwin/utlwin.scm (1.63), edwin/vc.scm (1.83), edwin/verilog.scm
	(1.12), edwin/vhdl.scm (1.12), edwin/webster.scm (1.7),
	edwin/win32.scm (1.18), edwin/win32com.scm (1.11), edwin/wincom.scm
	(1.135), edwin/window.scm (1.163), edwin/winout.scm (1.17),
	edwin/winren.scm (1.9), edwin/xcom.scm (1.24), edwin/xform.scm
	(1.15), edwin/xmodef.scm (1.6), edwin/xterm.scm (1.72),
	etc/Clean.sh (1.11), etc/Setup.sh (1.8), etc/Stage.sh (1.5),
	etc/Tags.sh (1.3), etc/build-bands.sh (1.4), etc/compile.scm (1.6),
	etc/compile.sh (1.4), etc/functions.sh (1.4), etc/optiondb.scm
	(1.11), imail/Makefile.in (1.5), imail/compile.scm (1.20),
	imail/ed-ffi.scm (1.22), imail/imail-browser.scm (1.11),
	imail/imail-core.scm (1.149), imail/imail-file.scm (1.84),
	imail/imail-imap.scm (1.198), imail/imail-rmail.scm (1.73),
	imail/imail-summary.scm (1.51), imail/imail-top.scm (1.287),
	imail/imail-umail.scm (1.54), imail/imail-util.scm (1.42),
	imail/imail.pkg (1.100), imail/imap-response.scm (1.48),
	imail/imap-syntax.scm (1.21), imail/load.scm (1.42), imail/print.sh
	(1.11), microcode/Clean.sh (1.3), microcode/Setup.sh (1.7),
	microcode/acconfig.h (11.6), microcode/array.c (9.48),
	microcode/array.h (9.38), microcode/artutl.c (1.18),
	microcode/avltree.c (1.7), microcode/avltree.h (1.6),
	microcode/bchdmp.c (9.92), microcode/bchdrn.c (1.12),
	microcode/bchdrn.h (1.12), microcode/bchgcc.h (9.65),
	microcode/bchgcl.c (9.56), microcode/bchmmg.c (9.103),
	microcode/bchpur.c (9.74), microcode/bchutl.c (1.15),
	microcode/bignmint.h (1.8), microcode/bignum.c (9.51),
	microcode/bignum.h (9.33), microcode/bigprm.c (1.8),
	microcode/bintopsb.c (9.76), microcode/bitstr.c (9.65),
	microcode/bitstr.h (1.12), microcode/bkpt.c (9.34),
	microcode/bkpt.h (9.36), microcode/bltdef.h (1.6), microcode/boot.c
	(9.112), microcode/breakup.c (9.27), microcode/char.c (9.35),
	microcode/cmpgc.h (1.34), microcode/cmpint.c (1.100),
	microcode/cmpint.h (10.11), microcode/cmptype.h (1.5),
	microcode/comlin.c (1.11), microcode/comlin.h (1.9),
	microcode/compinit.c (1.6), microcode/comutl.c (1.33),
	microcode/configure.in (11.20), microcode/confshared.h (11.5),
	microcode/const.h (9.48), microcode/copyrigh.c (1.5),
	microcode/critsec.h (1.6), microcode/daemon.c (9.33),
	microcode/debug.c (9.57), microcode/default.h (9.47),
	microcode/dfloat.c (1.8), microcode/dmpwrld.c (9.43),
	microcode/dstack.h (1.11), microcode/dump.c (9.42),
	microcode/edwin.h (1.11), microcode/error.c (1.9),
	microcode/errors.h (9.46), microcode/extern.c (9.40),
	microcode/extern.h (9.64), microcode/fasdump.c (9.68),
	microcode/fasl.h (9.40), microcode/fasload.c (9.96),
	microcode/fft.c (9.35), microcode/fhooks.c (9.37),
	microcode/findprim.c (9.57), microcode/fixnum.c (9.46),
	microcode/fixobj.h (9.40), microcode/flonum.c (9.45),
	microcode/foreign.c (1.5), microcode/foreign.h (1.5),
	microcode/future.c (9.31), microcode/futures.h (9.32),
	microcode/gc.h (9.36), microcode/gccode.h (9.60),
	microcode/gcloop.c (9.51), microcode/gctype.c (9.36),
	microcode/generic.c (9.41), microcode/gpio.c (1.13),
	microcode/history.h (9.33), microcode/hooks.c (9.65),
	microcode/hppacach.c (1.15), microcode/hppacach.h (1.8),
	microcode/hppanwca.c (1.7), microcode/hunk.c (9.31),
	microcode/image.c (9.36), microcode/image.h (9.27),
	microcode/intercom.c (9.35), microcode/intern.c (9.59),
	microcode/interp.c (9.98), microcode/interp.h (9.50),
	microcode/intext.c (1.7), microcode/intext.h (1.7),
	microcode/intprm.c (1.11), microcode/intrpt.h (1.23),
	microcode/liarc.h (1.21), microcode/list.c (9.34), microcode/load.c
	(9.41), microcode/locks.h (9.28), microcode/lookprm.c (1.21),
	microcode/lookup.c (9.70), microcode/lookup.h (9.57),
	microcode/memmag.c (9.71), microcode/memmag.h (1.10),
	microcode/missing.c (9.35), microcode/mul.c (9.37), microcode/nt.h
	(1.11), microcode/ntapi.h (1.15), microcode/ntasutl.asm (1.8),
	microcode/ntenv.c (1.21), microcode/ntfile.c (1.15),
	microcode/ntfs.c (1.30), microcode/ntfs.h (1.7), microcode/ntgui.c
	(1.30), microcode/ntgui.h (1.10), microcode/ntio.c (1.26),
	microcode/ntio.h (1.13), microcode/ntproc.c (1.10),
	microcode/ntproc.h (1.4), microcode/ntscmlib.h (1.11),
	microcode/ntscreen.c (1.49), microcode/ntscreen.h (1.22),
	microcode/ntsig.c (1.24), microcode/ntsock.c (1.15),
	microcode/ntsys.c (1.11), microcode/ntsys.h (1.10),
	microcode/ntterm.h (1.6), microcode/nttop.c (1.32),
	microcode/nttop.h (1.6), microcode/nttrap.c (1.25),
	microcode/nttrap.h (1.7), microcode/nttterm.c (1.6),
	microcode/nttty.c (1.10), microcode/object.h (9.53),
	microcode/option.c (1.59), microcode/option.h (1.14),
	microcode/os.h (1.9), microcode/os2.c (1.10), microcode/os2.h
	(1.10), microcode/os2api.h (1.14), microcode/os2conio.c (1.12),
	microcode/os2cthrd.c (1.12), microcode/os2cthrd.h (1.9),
	microcode/os2ctty.c (1.6), microcode/os2ctty.h (1.4),
	microcode/os2env.c (1.16), microcode/os2file.c (1.5),
	microcode/os2fs.c (1.16), microcode/os2io.c (1.10),
	microcode/os2io.h (1.6), microcode/os2msg.c (1.16),
	microcode/os2msg.h (1.17), microcode/os2pipe.c (1.10),
	microcode/os2pm.c (1.35), microcode/os2pm.h (1.15),
	microcode/os2pm.scm (1.14), microcode/os2pmcon.c (1.28),
	microcode/os2pmcon.h (1.6), microcode/os2pmcon.rc (1.7),
	microcode/os2proc.c (1.9), microcode/os2proc.h (1.4),
	microcode/os2sock.c (1.20), microcode/os2term.c (1.6),
	microcode/os2thrd.c (1.8), microcode/os2thrd.h (1.6),
	microcode/os2top.c (1.23), microcode/os2tty.c (1.4),
	microcode/os2xcpt.c (1.15), microcode/osctty.h (1.6),
	microcode/osenv.h (1.12), microcode/osfile.h (1.5),
	microcode/osfs.h (1.12), microcode/osio.h (1.19),
	microcode/osproc.h (1.12), microcode/ospty.h (1.6),
	microcode/osscheme.c (1.14), microcode/osscheme.h (1.13),
	microcode/ossig.h (1.6), microcode/osterm.h (1.13),
	microcode/ostop.h (1.7), microcode/ostty.c (1.6), microcode/ostty.h
	(1.7), microcode/outf.c (1.14), microcode/outf.h (1.7),
	microcode/ppband.c (9.52), microcode/prbfish.c (1.14),
	microcode/prename.h (1.11), microcode/prgdbm.c (1.5),
	microcode/prim.c (9.41), microcode/prim.h (9.49), microcode/prims.h
	(9.52), microcode/primutl.c (9.76), microcode/prmcon.c (1.7),
	microcode/prmcon.h (1.6), microcode/prmcrypt.c (1.5),
	microcode/prmd5.c (1.9), microcode/prmhash.c (11.6),
	microcode/prntenv.c (1.12), microcode/prntfs.c (1.19),
	microcode/prntio.c (1.15), microcode/pros2fs.c (1.20),
	microcode/pros2io.c (1.11), microcode/pros2pm.c (1.23),
	microcode/prosenv.c (1.19), microcode/prosfile.c (1.11),
	microcode/prosfs.c (1.18), microcode/prosio.c (1.23),
	microcode/prosproc.c (1.21), microcode/prospty.c (1.6),
	microcode/prosterm.c (1.18), microcode/prostty.c (1.9),
	microcode/pruxdld.c (1.17), microcode/pruxenv.c (1.21),
	microcode/pruxfs.c (9.58), microcode/pruxio.c (1.10),
	microcode/pruxsock.c (1.22), microcode/psbmap.h (9.47),
	microcode/psbtobin.c (9.61), microcode/ptrvec.c (1.5),
	microcode/purify.c (9.65), microcode/purutl.c (9.54),
	microcode/regex.c (1.22), microcode/regex.h (1.9),
	microcode/returns.h (9.45), microcode/rgxprim.c (1.15),
	microcode/sample.c (9.28), microcode/scheme.h (9.41),
	microcode/scode.h (9.29), microcode/sdata.h (9.42),
	microcode/sgraph.h (1.9), microcode/sgraph_a.c (1.18),
	microcode/sgx.c (1.11), microcode/sgx11.c (1.6), microcode/stack.h
	(9.44), microcode/starbase.c (1.9), microcode/starbasx.c (1.8),
	microcode/step.c (9.38), microcode/storage.c (9.60),
	microcode/string.c (9.49), microcode/syntax.c (1.27),
	microcode/syntax.h (1.12), microcode/syscall.h (1.15),
	microcode/sysprim.c (9.50), microcode/term.c (1.18),
	microcode/transact.c (1.7), microcode/trap.h (9.51),
	microcode/tterm.c (1.16), microcode/types.h (9.40),
	microcode/usrdef.h (9.46), microcode/utabmd.scm (9.87),
	microcode/utabmd.sh (1.5), microcode/utils.c (9.85), microcode/ux.c
	(1.23), microcode/ux.h (1.76), microcode/uxctty.c (1.16),
	microcode/uxenv.c (1.23), microcode/uxfile.c (1.12),
	microcode/uxfs.c (1.25), microcode/uxio.c (1.50), microcode/uxio.h
	(1.7), microcode/uxproc.c (1.29), microcode/uxproc.h (1.8),
	microcode/uxselect.h (1.8), microcode/uxsig.c (1.39),
	microcode/uxsig.h (1.8), microcode/uxsock.c (1.30),
	microcode/uxsock.h (1.12), microcode/uxterm.c (1.30),
	microcode/uxterm.h (1.7), microcode/uxtop.c (1.28),
	microcode/uxtop.h (1.5), microcode/uxtrap.c (1.37),
	microcode/uxtrap.h (1.32), microcode/uxtty.c (1.12),
	microcode/uxutil.c (1.9), microcode/uxutil.h (1.5),
	microcode/uxyp.c (1.5), microcode/vector.c (9.41),
	microcode/version.h (11.188), microcode/wabbit.c (1.11),
	microcode/wind.c (1.8), microcode/winder.h (9.28),
	microcode/wsize.c (9.36), microcode/x11.h (1.19),
	microcode/x11base.c (1.79), microcode/x11color.c (1.7),
	microcode/x11graph.c (1.43), microcode/x11term.c (1.29),
	microcode/xdebug.c (9.37), microcode/zones.h (9.28),
	microcode/cmpauxmd/asmcvt.c (1.4), microcode/cmpauxmd/c.c (1.15),
	microcode/cmpauxmd/hppa.m4 (1.42), microcode/cmpauxmd/i386.m4
	(1.61), microcode/cmpauxmd/m4-dos (1.4),
	microcode/cmpauxmd/makefile (1.9), microcode/cmpauxmd/mc68k.m4
	(1.30), microcode/cmpauxmd/mips.m4 (1.18),
	microcode/cmpauxmd/vax.m4 (1.7), microcode/cmpintmd/c.h (1.9),
	microcode/cmpintmd/hppa.h (1.54), microcode/cmpintmd/i386.h (1.37),
	microcode/cmpintmd/mc68k.h (1.38), microcode/cmpintmd/mips.h
	(1.25), microcode/cmpintmd/vax.h (1.11),
	microcode/makegen/Makefile.in.in (1.22),
	microcode/makegen/files-core.scm (1.4),
	microcode/makegen/files-gc-bch.scm (1.4),
	microcode/makegen/files-gc-std.scm (1.4),
	microcode/makegen/files-optional.scm (1.5),
	microcode/makegen/files-os-prim.scm (1.4),
	microcode/makegen/files-other.scm (1.4),
	microcode/makegen/files-unix.scm (1.4), microcode/makegen/m4.sh
	(1.4), microcode/makegen/makegen.scm (1.6),
	microcode/makegen/makeinit.sh (1.10), microcode/ntutl/bch-p-nt.lst
	(1.8), microcode/ntutl/config.h (1.6), microcode/ntutl/makefile
	(1.30), microcode/ntutl/makefile.wcc (1.19),
	microcode/ntutl/scheme16.c (1.13), microcode/ntutl/scheme31.c
	(1.12), microcode/ntutl/scheme32.c (1.19),
	microcode/ntutl/scm-p-nt.lst (1.8), microcode/os2utl/config.h
	(1.6), microcode/os2utl/makefile (1.17),
	microcode/os2utl/makefile.cmn (1.15), microcode/os2utl/makefile.emx
	(1.11), microcode/os2utl/makefile.gcc (1.9),
	microcode/os2utl/makefile.vac (1.9), microcode/os2utl/makefile.wcc
	(1.10), microcode/os2utl/mkos2pm.scm (1.4), pcsample/load.scm
	(1.8), pcsample/pcs.cbf (1.5), pcsample/pcs.pkg (1.5),
	pcsample/pcs.sf (1.5), pcsample/pcsample.c (1.8),
	pcsample/pcsample.scm (1.5), pcsample/pcsboot.scm (1.4),
	pcsample/pcscobl.c (1.4), pcsample/pcscobl.scm (1.4),
	pcsample/pcsdisp.scm (1.5), pcsample/pcsdld.c (1.7),
	pcsample/pcsintrp.scm (1.4), pcsample/pcsiproc.c (1.4),
	pcsample/pcsiproc.scm (1.4), pcsample/pribinut.scm (1.4),
	rcs/compile.scm (1.6), rcs/format.scm (1.5), rcs/load.scm (1.5),
	rcs/logmer.scm (1.29), rcs/mklogs.scm (1.24), rcs/nparse.scm (1.5),
	rcs/object.scm (1.7), rcs/rcs.pkg (1.9), runtime/Makefile.in (1.8),
	runtime/advice.scm (14.20), runtime/apply.scm (1.7),
	runtime/apropos.scm (1.7), runtime/arith.scm (1.56),
	runtime/bitstr.scm (14.6), runtime/blowfish.scm (1.26),
	runtime/boole.scm (14.6), runtime/boot.scm (14.15),
	runtime/char.scm (14.15), runtime/chrset.scm (14.18),
	runtime/chrsyn.scm (1.8), runtime/codwlk.scm (14.6),
	runtime/conpar.scm (14.41), runtime/contin.scm (14.12),
	runtime/cpoint.scm (14.7), runtime/cpress.scm (1.14),
	runtime/crypto.scm (14.16), runtime/datime.scm (14.35),
	runtime/dbgcmd.scm (14.18), runtime/dbgutl.scm (14.23),
	runtime/debug.scm (14.45), runtime/defstr.scm (14.42),
	runtime/dosdir.scm (1.12), runtime/dosprm.scm (1.46),
	runtime/dosproc.scm (1.5), runtime/dospth.scm (1.43),
	runtime/dragon4.scm (1.17), runtime/ed-ffi.scm (1.35),
	runtime/emacs.scm (14.31), runtime/equals.scm (14.11),
	runtime/error.scm (14.61), runtime/events.scm (14.7),
	runtime/fileio.scm (1.21), runtime/fixart.scm (1.10),
	runtime/format.scm (14.8), runtime/framex.scm (14.21),
	runtime/gc.scm (14.18), runtime/gcdemn.scm (14.10),
	runtime/gcfinal.scm (14.5), runtime/gcnote.scm (14.16),
	runtime/gcstat.scm (14.8), runtime/gdatab.scm (14.8),
	runtime/gdbm.scm (1.5), runtime/gencache.scm (1.5),
	runtime/geneqht.scm (1.4), runtime/generic.scm (1.5),
	runtime/genio.scm (1.18), runtime/genmult.scm (1.5),
	runtime/gensym.scm (14.8), runtime/gentag.scm (1.5),
	runtime/global.scm (14.59), runtime/graphics.scm (1.24),
	runtime/hash.scm (14.8), runtime/hashtb.scm (1.25),
	runtime/histry.scm (14.8), runtime/infstr.scm (1.17),
	runtime/infutl.scm (1.69), runtime/input.scm (14.23),
	runtime/intrpt.scm (14.24), runtime/io.scm (14.72),
	runtime/krypt.scm (1.14), runtime/kryptdum.scm (1.4),
	runtime/lambda.scm (14.19), runtime/lambdx.scm (14.12),
	runtime/list.scm (14.34), runtime/load.scm (14.65),
	runtime/make.scm (14.89), runtime/mime-codec.scm (14.14),
	runtime/mit-syntax.scm (14.14), runtime/msort.scm (14.11),
	runtime/ntdir.scm (1.4), runtime/ntprm.scm (1.40),
	runtime/numint.scm (1.8), runtime/numpar.scm (14.19),
	runtime/option.scm (14.43), runtime/optiondb.scm (1.16),
	runtime/ordvec.scm (1.5), runtime/os2ctype.scm (1.5),
	runtime/os2dir.scm (1.7), runtime/os2graph.scm (1.22),
	runtime/os2prm.scm (1.51), runtime/os2winp.scm (1.20),
	runtime/output.scm (14.32), runtime/packag.scm (14.42),
	runtime/parse.scm (14.40), runtime/parser-buffer.scm (1.7),
	runtime/partab.scm (14.7), runtime/pathnm.scm (14.36),
	runtime/poplat.scm (14.6), runtime/port.scm (1.26), runtime/pp.scm
	(14.46), runtime/prgcop.scm (1.9), runtime/process.scm (1.28),
	runtime/prop1d.scm (14.8), runtime/prop2d.scm (14.5),
	runtime/qsort.scm (14.7), runtime/queue.scm (14.7),
	runtime/random.scm (14.26), runtime/rbtree.scm (1.9),
	runtime/record.scm (1.31), runtime/recslot.scm (1.10),
	runtime/regexp.scm (1.12), runtime/rep.scm (14.59),
	runtime/rexp.scm (1.22), runtime/rgxcmp.scm (1.124),
	runtime/runtime.cbf (1.5), runtime/runtime.pkg (14.427),
	runtime/runtime.sf (14.20), runtime/savres.scm (14.43),
	runtime/scan.scm (14.8), runtime/scode.scm (14.19),
	runtime/scomb.scm (14.23), runtime/sdata.scm (14.5),
	runtime/sfile.scm (14.34), runtime/site.scm.dos (1.16),
	runtime/site.scm.unix (1.17), runtime/socket.scm (1.21),
	runtime/starbase.scm (1.20), runtime/stream.scm (14.15),
	runtime/string.scm (14.49), runtime/strnin.scm (14.11),
	runtime/strott.scm (14.11), runtime/strout.scm (14.18),
	runtime/symbol.scm (1.9), runtime/syncproc.scm (1.10),
	runtime/syntactic-closures.scm (14.13), runtime/syntax-check.scm
	(14.5), runtime/syntax-output.scm (14.9), runtime/syntax-rules.scm
	(14.5), runtime/syntax-transforms.scm (14.4), runtime/sysclk.scm
	(14.6), runtime/sysmac.scm (14.12), runtime/system.scm (14.15),
	runtime/thread.scm (1.39), runtime/tscript.scm (1.6),
	runtime/ttyio.scm (1.14), runtime/tvector.scm (1.5),
	runtime/udata.scm (14.23), runtime/uenvir.scm (14.60),
	runtime/uerror.scm (14.52), runtime/unicode.scm (1.5),
	runtime/unpars.scm (14.52), runtime/unsyn.scm (14.30),
	runtime/unxdir.scm (14.14), runtime/unxprm.scm (1.65),
	runtime/unxpth.scm (14.28), runtime/uproc.scm (1.14),
	runtime/url.scm (1.14), runtime/urtrap.scm (14.15),
	runtime/usrint.scm (1.19), runtime/utabs.scm (14.16),
	runtime/vector.scm (14.23), runtime/version.scm (14.212),
	runtime/where.scm (14.13), runtime/wind.scm (14.8),
	runtime/wrkdir.scm (14.10), runtime/wttree.scm (1.12),
	runtime/x11graph.scm (1.55), runtime/xeval.scm (1.12),
	runtime/ystep.scm (1.5), runtime-check/Clean.sh (1.5),
	runtime-check/Setup.sh (1.7), runtime-check/runtime.cbf (1.3),
	sf/butils.scm (4.13), sf/cgen.scm (4.7), sf/chtype.scm (4.6),
	sf/copy.scm (4.8), sf/emodel.scm (4.6), sf/free.scm (4.6),
	sf/gconst.scm (4.29), sf/gimprt.scm (4.4), sf/lsets.scm (4.5),
	sf/make.scm (4.43), sf/object.scm (4.18), sf/pardec.scm (4.16),
	sf/pthmap.scm (4.7), sf/reduct.scm (4.12), sf/sf.cbf (1.5),
	sf/sf.pkg (4.19), sf/sf.sf (4.13), sf/subst.scm (4.19),
	sf/table.scm (4.7), sf/tables.scm (4.5), sf/toplev.scm (4.26),
	sf/usicon.scm (4.7), sf/usiexp.scm (4.43), sf/xform.scm (4.13),
	sicp/compat.scm (1.11), sicp/genenv.scm (1.5), sicp/graphics.scm
	(1.7), sicp/sbuild.scm (1.7), sicp/stream.scm (1.4),
	sicp/strmac.scm (1.5), sicp/studen.scm (1.13), sos/Makefile.in
	(1.5), sos/class.scm (1.15), sos/compile.scm (1.8), sos/ed-ffi.scm
	(1.5), sos/instance.scm (1.17), sos/load.scm (1.14), sos/macros.scm
	(1.17), sos/method.scm (1.14), sos/microbench.scm (1.5),
	sos/printer.scm (1.5), sos/slot.scm (1.10), sos/sos.pkg (1.13),
	star-parser/Makefile.in (1.4), star-parser/compile.scm (1.8),
	star-parser/ed-ffi.scm (1.8), star-parser/load.scm (1.15),
	star-parser/matcher.scm (1.32), star-parser/parser.pkg (1.21),
	star-parser/parser.scm (1.35), star-parser/shared.scm (1.26),
	star-parser/test-parser.scm (1.6), swat/scheme/swat.sf (1.6),
	wabbit/load.scm (1.5), wabbit/wabbit.cbf (1.4), wabbit/wabbit.pkg
	(1.4), wabbit/wabbit.scm (1.4), wabbit/wabbit.sf (1.6),
	win32/clipbrd.scm (1.8), win32/dib.scm (1.7), win32/ffimacro.scm
	(1.10), win32/graphics.scm (1.20), win32/make.scm (1.13),
	win32/module.scm (1.6), win32/protect.scm (1.5), win32/wf_user.scm
	(1.12), win32/win32.cbf (1.5), win32/win32.pkg (1.17),
	win32/win32.sf (1.11), win32/win_ffi.scm (1.11), win32/wingdi.scm
	(1.5), win32/winnt.scm (1.5), win32/winuser.scm (1.5),
	win32/wt_user.scm (1.8), win32/dibutils/dibutils.c (1.6),
	win32/dibutils/dibutils.def (1.5), win32/dibutils/dibutils.h (1.6),
	win32/dibutils/makefile.msc (1.6), win32/dibutils/makefile.wcc
	(1.6), xml/Makefile.in (1.5), xml/compile.scm (1.11),
	xml/ed-ffi.scm (1.7), xml/load.scm (1.10), xml/parser-macro.scm
	(1.8), xml/test-parser.scm (1.9), xml/xml-chars.scm (1.5),
	xml/xml-output.scm (1.14), xml/xml-parser.scm (1.21),
	xml/xml-struct.scm (1.9), xml/xml.pkg (1.16), COPYING (1.6): Change
	program name to MIT/GNU Scheme.

2003-02-14 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/abbrev.scm (1.8), edwin/argred.scm (1.35), edwin/autold.scm
	(1.64), edwin/autosv.scm (1.36), edwin/basic.scm (1.142),
	edwin/buffrm.scm (1.61), edwin/bufinp.scm (1.10), edwin/bufmnu.scm
	(1.133), edwin/bufout.scm (1.15), edwin/bufset.scm (1.14),
	edwin/bufwfs.scm (1.22), edwin/bufwin.scm (1.312), edwin/bufwiu.scm
	(1.36), edwin/bufwmc.scm (1.20), edwin/c-mode.scm (1.62),
	edwin/cinden.scm (1.22), edwin/class.scm (1.74), edwin/clscon.scm
	(1.10), edwin/clsmac.scm (1.12), edwin/comatch.scm (1.6),
	edwin/compile.scm (1.16), edwin/comred.scm (1.125),
	edwin/comtab.scm (1.74), edwin/comwin.scm (1.149), edwin/curren.scm
	(1.146), edwin/dabbrev.scm (1.6), edwin/debian-changelog.scm (1.8),
	edwin/debuge.scm (1.56), edwin/dired.scm (1.192), edwin/diros2.scm
	(1.6), edwin/dirunx.scm (1.15), edwin/dirw32.scm (1.6),
	edwin/display.scm (1.9), edwin/dos.scm (1.55), edwin/dosfile.scm
	(1.40), edwin/edtfrm.scm (1.93), edwin/edwin.sf (1.31),
	edwin/eystep.scm (1.8), edwin/filcom.scm (1.225), edwin/fill.scm
	(1.72), edwin/htmlmode.scm (1.8), edwin/image.scm (1.139),
	edwin/info.scm (1.139), edwin/input.scm (1.104), edwin/iserch.scm
	(1.25), edwin/javamode.scm (1.13), edwin/key-w32.scm (1.5),
	edwin/key-x11.scm (1.7), edwin/keymap.scm (1.19),
	edwin/keyparse.scm (1.5), edwin/kilcom.scm (1.74), edwin/kmacro.scm
	(1.46), edwin/lincom.scm (1.126), edwin/linden.scm (1.128),
	edwin/loadef.scm (1.47), edwin/lspcom.scm (1.162), edwin/macros.scm
	(1.74), edwin/malias.scm (1.7), edwin/manual.scm (1.18),
	edwin/midas.scm (1.24), edwin/modefs.scm (1.162), edwin/modes.scm
	(1.37), edwin/modlin.scm (1.25), edwin/modwin.scm (1.44),
	edwin/motcom.scm (1.49), edwin/motion.scm (1.90),
	edwin/mousecom.scm (1.7), edwin/notify.scm (1.22),
	edwin/nvector.scm (1.10), edwin/occur.scm (1.7), edwin/os2.scm
	(1.53), edwin/os2com.scm (1.7), edwin/outline.scm (1.11),
	edwin/pasmod.scm (1.53), edwin/print.scm (1.22), edwin/prompt.scm
	(1.200), edwin/pwedit.scm (1.10), edwin/pwparse.scm (1.3),
	edwin/reccom.scm (1.16), edwin/regcom.scm (1.24), edwin/rename.scm
	(1.10), edwin/replaz.scm (1.82), edwin/ring.scm (1.14),
	edwin/rmailsrt.scm (1.15), edwin/rmailsum.scm (1.38),
	edwin/scrcom.scm (1.10), edwin/screen.scm (1.120), edwin/sercom.scm
	(1.67), edwin/simple.scm (1.56), edwin/snr.scm (1.63),
	edwin/sort.scm (1.10), edwin/strpad.scm (1.10), edwin/strtab.scm
	(1.49), edwin/syntax.scm (1.91), edwin/tagutl.scm (1.61),
	edwin/texcom.scm (1.48), edwin/things.scm (1.90), edwin/tparse.scm
	(1.77), edwin/tximod.scm (1.27), edwin/txtprp.scm (1.25),
	edwin/undo.scm (1.61), edwin/unix.scm (1.112), edwin/utils.scm
	(1.53), edwin/utlwin.scm (1.62), edwin/vc.scm (1.82),
	edwin/verilog.scm (1.11), edwin/vhdl.scm (1.11), edwin/win32com.scm
	(1.10), edwin/wincom.scm (1.134), edwin/window.scm (1.162),
	edwin/winout.scm (1.16), edwin/winren.scm (1.8), edwin/xform.scm
	(1.14), edwin/xmodef.scm (1.5), imail/compile.scm (1.19),
	imail/ed-ffi.scm (1.21), imail/imail-browser.scm (1.10),
	imail/imail-rmail.scm (1.72), imail/imail-summary.scm (1.50),
	imail/imail-umail.scm (1.53), imail/imail-util.scm (1.41),
	imail/imail.pkg (1.99), imail/imap-syntax.scm (1.20),
	imail/load.scm (1.41), microcode/utabmd.scm (9.86),
	runtime/chrsyn.scm (1.7), runtime/gencache.scm (1.4),
	runtime/generic.scm (1.4), runtime/genmult.scm (1.4),
	runtime/gentag.scm (1.4), runtime/mime-codec.scm (14.13),
	runtime/ordvec.scm (1.4), runtime/recslot.scm (1.9),
	runtime/regexp.scm (1.11), runtime/rgxcmp.scm (1.123),
	runtime/syntactic-closures.scm (14.12), runtime/syntax-check.scm
	(14.4), runtime/syntax-transforms.scm (14.3), runtime/tvector.scm
	(1.4), sos/compile.scm (1.7), sos/instance.scm (1.16), sos/load.scm
	(1.13), sos/macros.scm (1.16), sos/method.scm (1.13),
	sos/microbench.scm (1.4), sos/printer.scm (1.4), sos/slot.scm
	(1.9), star-parser/compile.scm (1.7), star-parser/ed-ffi.scm (1.7),
	star-parser/load.scm (1.14), star-parser/matcher.scm (1.31),
	star-parser/parser.pkg (1.20), star-parser/shared.scm (1.25),
	star-parser/test-parser.scm (1.5), win32/clipbrd.scm (1.7):
	Canonicalize copyright/license notices.

2003-02-13 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.14), microcode/makegen/makegen.scm (1.5),
	edwin/schmod.scm (1.62), xml/xml-output.scm (1.13),
	xml/xml-parser.scm (1.20): Add support for SRFI-6 -- this consists
	of renaming some procedures.  Also change all the references to the
	SRFI-6 names.

2003-02-13 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.60), runtime/mit-syntax.scm (14.13),
	runtime/parse.scm (14.39), runtime/pp.scm (14.45),
	runtime/runtime.pkg (14.426), runtime/strnin.scm (14.10),
	runtime/strout.scm (14.17), runtime/unicode.scm (1.4),
	edwin/hlpcom.scm (1.125), edwin/nntp.scm (1.26), edwin/rfc822.scm
	(3.5), edwin/sendmail.scm (1.80), imail/imail-core.scm (1.148),
	imail/imail-file.scm (1.83), imail/imail-imap.scm (1.197),
	imail/imail-top.scm (1.286), imail/imap-response.scm (1.47): Add
	support for SRFI-6 -- this consists of renaming some procedures. 
	Also change all the references to the SRFI-6 names.

2003-02-13 13:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/comfiles.scm (1.8): Add procedure to compare two
	build trees.

2003-02-13 00:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.14), 6001/arith.scm (1.12): Eliminate
	definitions embedded inside LET-SYNTAX, since they depend on an
	incorrect implementation of LET-SYNTAX.

2003-02-12 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.33): Can't use top-level DEFINE-SYNTAX in
	this file, because it breaks the cold load.

2003-02-12 21:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/valclass.scm (1.8): Eliminate compiler warning.

2003-02-12 21:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.12): Fix interaction between
	LET-SYNTAX and definitions.  Previously a definition inside a
	LET-SYNTAX changed the environment outside the LET-SYNTAX.  Now it
	changes the environment inside the LET-SYNTAX, as it is supposed
	to.

2003-02-12 21:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlreg.scm (4.11), rtlbase/valclass.scm (1.7),
	base/lvalue.scm (4.27), base/macros.scm (4.30), base/utils.scm
	(4.26), fggen/canon.scm (1.24), machines/i386/lapgen.scm (1.33):
	Eliminate definitions embedded inside LET-SYNTAX, since they depend
	on an incorrect implementation of LET-SYNTAX.

2003-02-12 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.55), runtime/graphics.scm (1.23),
	runtime/list.scm (14.32), runtime/parser-buffer.scm (1.6),
	runtime/scomb.scm (14.22), runtime/starbase.scm (1.19),
	sf/object.scm (4.17), edwin/buffer.scm (1.189), edwin/calias.scm
	(1.29), edwin/dosproc.scm (1.11), edwin/grpops.scm (1.30),
	edwin/search.scm (1.157), edwin/tterm.scm (1.37), edwin/xcom.scm
	(1.23): Eliminate definitions embedded inside LET-SYNTAX, since
	they depend on an incorrect implementation of LET-SYNTAX.

2003-02-12 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.sh (1.4), etc/build-bands.sh (1.3): Use "--"
	form for command-line arguments.

2003-02-12 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.42): Eliminate "(c)" string from copyright
	notices.

2003-02-12 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (14.11), syntax-output.scm (14.8):
	Properly fix problem with LETREC/definition interaction.  This
	requires an extra environment frame in the syntax expander, to
	model the frame that is potentially inserted in the output.  And we
	must continue to use the "auxiliary" variable mechanism, since the
	compiler and several other things depend on it in order to
	recognize LETREC-like structures.

2003-02-10 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (14.19): Complete rewrite, greatly simplied
	code.  Initiated to eliminate use of "internal" LAMBDA expressions,
	but got out of hand.

2003-02-09 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uproc.scm (1.13), runtime.pkg (14.425): Add GUARANTEE-
	procedures.  Clean up a little, and update copyright dates.

2003-02-08 20:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (14.7): Fix bug in output of LETREC
	expressions: internal definitions within the LETREC must be
	rewritten as a nested LETREC.  Previously they were merged into the
	outer LETREC.

2003-02-07 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.15), xml-output.scm (1.12), xml-parser.scm
	(1.19): New procedures: STRING->XML, SUBSTRING->XML, and
	XML->STRING.

2003-02-06 14:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.424): Export GUARANTEE-PAIR to global
	environment.

2003-02-06 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/parser.scm (1.34): Fix bug in definition of COMPLETE
	keyword.

2003-01-31 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-rules.scm (14.4): Generate appropriate error
	message when ellipsis appears in template but not in pattern.

2003-01-31 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-rules.scm (14.3): Update copyright; use PAIR?
	rather than NULL? where appropriate.

2003-01-30 12:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml.pkg (1.14): Export CHAR-SET:XML-WHITESPACE.

2003-01-26 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: compile.scm (1.10), ed-ffi.scm (1.6), parser-macro.scm
	(1.6), test-parser.scm (1.7), xml-chars.scm (1.3), xml-output.scm
	(1.10), xml-parser.scm (1.17), Makefile.in (1.4), load.scm (1.9),
	parser-macro.scm (1.7), test-parser.scm (1.8), xml-chars.scm (1.4),
	xml-output.scm (1.11), xml-parser.scm (1.18): Update
	copyright/license statement.

2003-01-26 01:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.13), load.scm (1.8): Update copyright/license
	statement.

2003-01-26 01:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-struct.scm (1.8): Make XML-INTERN be an alias for
	STRING->SYMBOL.

2003-01-22 21:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.71): When TEST-FOR-IO-ON-CHANNEL returns
	HANGUP or ERROR, call CHANNEL-READ/CHANNEL-WRITE just as if it had
	returned an I/O-available result.

2003-01-22 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.70): Use new I/O synchronization to avoid
	blocking the Scheme process when an output channel blocks.

2003-01-22 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosio.c (1.22), runtime/io.scm (14.69),
	runtime/thread.scm (1.38): Change calling interface for
	test-select-registry so that all of the returned mode information
	is passed back.

2003-01-22 13:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: make.scm (3.117), os2term.scm (1.24), process.scm (1.64),
	tterm.scm (1.36), win32.scm (1.17), xterm.scm (1.71): Use new I/O
	synchronization support in runtime system.

2003-01-22 13:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.68): Use ERROR and HANGUP values returned by
	TEST-SELECT-DESCRIPTOR.

2003-01-22 13:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osio.h (1.18), prosio.c (1.21), uxio.c (1.49): Pay
	attention to POLLERR and POLLHUP values returned by poll().

2003-01-21 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.45), runtime/io.scm (14.67),
	runtime/ntprm.scm (1.39), runtime/os2graph.scm (1.21),
	runtime/os2prm.scm (1.50), runtime/runtime.pkg (14.423),
	runtime/socket.scm (1.20), runtime/thread.scm (1.37),
	runtime/unxprm.scm (1.64), runtime/version.scm (14.211),
	runtime/x11graph.scm (1.54), swat/scheme/mit-xhooks.scm (1.6): Use
	new I/O synchronization primitives.  Requires microcode 14.11 or
	later.

2003-01-21 21:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osio.h (1.17), prosio.c (1.20), uxio.c (1.48),
	version.h (11.187): Implement new primitives for I/O
	synchronization.  These new primitives have a uniform interface for
	all operating systems, and support detection of write-ready events
	as well as read-ready.	(Note that the Win32 and OS/2 primitives
	aren't yet written.)

2003-01-15 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.285): Change default value of
	imail-mime-collapse-digest to #f.

2003-01-14 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.61): Add indent methods for SFRI keywords.

2003-01-10 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.139): Add comment aout treating MIME digests as
	subfolders.

2003-01-10 15:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.109), doscom.scm (1.5), dosshell.scm (1.7),
	editor.scm (1.257), edtstr.scm (1.28), fileio.scm (1.160),
	process.scm (1.63), regexp.scm (1.80), regops.scm (1.90), rmail.scm
	(1.74), struct.scm (1.97): Eliminate last vestiges of
	UNWIND-PROTECT.

2003-01-10 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.32), debug.scm (1.64), editor.scm
	(1.256), edwin.pkg (1.284), evlcom.scm (1.67), intmod.scm (1.118):
	Rework code that starts the debugger.  The edwin variable
	DEBUGGER-START-ON-ERROR? has been removed, and the various
	DEBUG-ON-*-ERROR edwin variables have been generalized to take a
	'ASK value that prompts the user.  The prompting has been cleaned
	up, and the interface simplified.

2003-01-10 13:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: calias.scm (1.27), edtstr.scm (1.26), edtstr.scm (1.27),
	calias.scm (1.28): Order predicates for keys must also handle
	buttons.  Otherwise, the code that sorts key bindings will break.

2003-01-09 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edtstr.scm (1.25): Eliminate unused procedure
	MAKE-MODIFIED-BUTTON.

2003-01-09 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: ed-ffi.scm (1.20), imail.pkg (1.98), url.scm (1.13): Move
	URL support back to the runtime system.

2003-01-09 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.88), imail/compile.scm (1.18): Move URL
	support back to the runtime system.

2003-01-09 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ed-ffi.scm (1.34), runtime.pkg (14.422), runtime.sf
	(14.19), url.scm (1.13): Move URL support back to the runtime
	system.

2003-01-09 14:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/url.scm (1.12): Move URL support back to the runtime
	system.

2003-01-05 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.16): Fix broken multi-line string
	constant.

2003-01-03 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/output.scm (14.31): Eliminate trailing spaces after last
	item in row.

2003-01-03 16:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/output.scm (14.30): Fix fencepost error -- output must be
	less than width of output device.

2003-01-02 20:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: output.scm (14.29), runtime.pkg (14.421), savres.scm
	(14.41): Rename: WRITE-STRINGS-AS-TABLE ->
	WRITE-STRINGS-IN-COLUMNS.

2003-01-02 20:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/output.scm (14.28): Don't write column separators for
	empty cells in the table.

2003-01-01 21:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.40): Print ID strings in row-major order.

2003-01-01 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.119): Don't print architecture name. 
	Upcase "LIAR" to emphasize that it is an acronym.

2003-01-01 20:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.39): New procedure WRITE-STRINGS-AS-TABLE
	is used to format the ID strings printed by IDENTIFY-WORLD.

2003-01-01 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.54): Fix thinko in previous change.

2003-01-01 20:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.420), savres.scm (14.37), output.scm
	(14.27), savres.scm (14.38): New procedure WRITE-STRINGS-AS-TABLE
	is used to format the ID strings printed by IDENTIFY-WORLD.

2003-01-01 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.53), runtime.pkg (14.419): Add predicate
	and guarantee for exact positive integers.

2002-12-31 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.52), runtime.pkg (14.418): Implement
	GUARANTEE-* for number types.

2002-12-31 21:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (14.22), runtime/output.scm (14.26),
	runtime/port.scm (1.25), runtime/error.scm (14.59),
	runtime/stream.scm (14.14), sicp/compat.scm (1.10): Change
	GUARANTEE-*-PORT procedures to accept a second argument specifying
	the caller, and update all references.

2002-12-30 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.111), runtime/savres.scm (14.36): Move
	license statement into runtime, and add copyright statement.

2002-12-26 22:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.64), edwin/editor.scm (1.255),
	6001/edextra.scm (1.35): Change option processing to accept "--"
	option syntax, as required by GNU coding standards.  Older "-"
	syntax is preserved for compatibility.

2002-12-26 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.58), runtime/load.scm (14.63): Change
	option processing to accept "--" option syntax, as required by GNU
	coding standards.  Older "-" syntax is preserved for compatibility.

2002-12-26 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.110): Add message at boot about legal issues.

2002-12-19 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rexp.scm (1.21): Must loop after case-folding a character
	set or string.

2002-12-19 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rexp.scm (1.20): Fix bug: typo in CASE-FOLD-CHAR-SET.

2002-12-15 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.12), xml-output.scm (1.9), xml-parser.scm
	(1.16): Add new procedures: READ-XML READ-XML-FILE WRITE-XML-FILE

2002-12-13 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.10): Fix thinko in DEFINE-RECORD-TYPE.

2002-12-09 14:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/htmlmode.scm (1.7): Fix comment handling to use same
	strategy as Emacs.

2002-12-09 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.15): Add ability to specify handlers for
	processing instructions.  These handlers are invoked during
	parsing, and their results replace the processing instructions in
	the XML output tree.

2002-12-09 13:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.8): Tweak formatting of DTD with both
	external and internal parts.

2002-12-09 13:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.7): Don't rewrite & in entity values; it is
	assumed that value is already rewritten.

2002-12-09 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vc.scm (1.81), edwin.pkg (1.283): Implement editor
	variable vc-cvs-stay-local which tells VC to trust the CVS
	timestamps when trying to see whether a file has been modified,
	rather than querying the repository.

2002-12-09 00:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.6): Use new column-tracking feature of
	output ports to do a better job of indenting.

2002-12-09 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.417), io.scm (14.66), output.scm
	(14.25), genio.scm (1.17): Change output ports to track current
	column.  This is needed to do indentation right.

2002-12-08 12:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.14): Change output of parser to distinguish
	<foo></foo> from <foo/>.

2002-12-07 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.59), runtime.pkg (14.416): Implement
	MAKE-TOP-LEVEL-ENVIRONMENT.

2002-12-06 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.5): Fix harmless typo.

2002-12-06 23:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-output.scm (1.4): Fold long start elements that have
	multiple attributes.

2002-12-06 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: load.scm (1.7), xml.pkg (1.11), xml-output.scm (1.3),
	xml-parser.scm (1.13), xml-struct.scm (1.7): Don't discard XML
	comments; these are important to preserve when processing
	documents.

2002-11-26 21:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/c/tk3.2-custom/: tkEvent.c (1.2), tkWindow.c (1.2),
	tcl/tclUnix.h (1.2): Don't use $Header$.

2002-11-26 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ansidecl.h (1.8), obstack.c (1.7), obstack.h (1.12),
	os2pm.scm (1.13), termcap.c (1.8), tparam.c (1.8), unexec.c (9.25):
	Update FSF address in a few more places.

2002-11-25 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/graphics.scm (1.19): Fix bug in translation of graphics
	drawing modes.

2002-11-22 16:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* COPYING (1.5): Change "this program" to "MIT Scheme" in
	prescript.

2002-11-22 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* COPYING (1.4): Use updated version of GPL with correct address.

2002-11-20 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/Clean.sh (1.10): Only unlink symlink if its target is the one
	we linked to.

2002-11-20 22:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: Clean.sh (1.9), functions.sh (1.3): Only unlink symlink if
	its target is the one we linked to.

2002-11-20 22:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/Clean.sh (1.8), edwin/Clean.sh (1.7): Don't use rm-old-pkg
	option by default.

2002-11-20 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchutl.c (1.14): Include <string.h> to provide
	strerror.

2002-11-20 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchutl.c (1.13), uxtop.c (1.27): Use strerror if
	available.

2002-11-20 15:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (11.19): Add check for strerror.

2002-11-20 15:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.24): Fix typo.

2002-11-20 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* Clean.sh (1.5), Makefile.in (1.20), Makefile.std (1.12), Setup.sh
	(1.8), Tags.sh (1.2), configure.in (1.6), 6001/6001.cbf (1.8),
	6001/6001.pkg (1.15), 6001/6001.sf (1.14), 6001/arith.scm (1.11),
	6001/edextra.scm (1.34), 6001/floppy.scm (1.27), 6001/make.scm
	(15.35), 6001/nodefs.scm (1.13), 6001/pic-imag.scm (1.11),
	6001/pic-ops.scm (1.7), 6001/pic-read.scm (1.7), 6001/pic-reco.scm
	(1.9), 6001/picture.scm (1.31), compiler/Clean.sh (1.6),
	compiler/Setup.sh (1.4), compiler/Stage.sh (1.3), compiler/Tags.sh
	(1.2), compiler/configure (1.5), compiler/back/asmmac.scm (1.18),
	compiler/back/asutl.scm (1.4), compiler/back/bittop.scm (1.23),
	compiler/back/bitutl.scm (1.11), compiler/back/insseq.scm (4.5),
	compiler/back/lapgn1.scm (4.19), compiler/back/lapgn2.scm (1.22),
	compiler/back/lapgn3.scm (4.16), compiler/back/linear.scm (4.18),
	compiler/back/mermap.scm (1.6), compiler/back/regmap.scm (4.15),
	compiler/back/syerly.scm (1.13), compiler/back/symtab.scm (1.48),
	compiler/back/syntax.scm (1.30), compiler/base/asstop.scm (1.13),
	compiler/base/blocks.scm (4.16), compiler/base/cfg1.scm (4.8),
	compiler/base/cfg2.scm (4.5), compiler/base/cfg3.scm (4.6),
	compiler/base/constr.scm (1.5), compiler/base/contin.scm (4.10),
	compiler/base/crsend.scm (1.14), compiler/base/crstop.scm (1.14),
	compiler/base/ctypes.scm (4.17), compiler/base/debug.scm (4.17),
	compiler/base/enumer.scm (4.5), compiler/base/infnew.scm (4.13),
	compiler/base/lvalue.scm (4.26), compiler/base/macros.scm (4.29),
	compiler/base/make.scm (4.118), compiler/base/mvalue.scm (3.2),
	compiler/base/object.scm (4.10), compiler/base/pmerly.scm (1.10),
	compiler/base/pmlook.scm (1.10), compiler/base/pmpars.scm (1.8),
	compiler/base/proced.scm (4.24), compiler/base/refctx.scm (1.4),
	compiler/base/rvalue.scm (4.9), compiler/base/scode.scm (4.15),
	compiler/base/sets.scm (4.3), compiler/base/subprb.scm (4.9),
	compiler/base/switch.scm (4.27), compiler/base/toplev.scm (4.63),
	compiler/base/utils.scm (4.25), compiler/etc/asm.scm (1.4),
	compiler/etc/comcmp.scm (1.12), compiler/etc/comfiles.scm (1.7),
	compiler/etc/disload.scm (1.13), compiler/etc/stackp.scm (1.8),
	compiler/etc/xcbfdir.scm (1.10), compiler/fggen/canon.scm (1.23),
	compiler/fggen/declar.scm (1.7), compiler/fggen/fggen.scm (4.38),
	compiler/fgopt/blktyp.scm (4.17), compiler/fgopt/closan.scm (4.31),
	compiler/fgopt/conect.scm (4.7), compiler/fgopt/contan.scm (4.11),
	compiler/fgopt/delint.scm (1.5), compiler/fgopt/desenv.scm (4.6),
	compiler/fgopt/envopt.scm (1.11), compiler/fgopt/folcon.scm (4.10),
	compiler/fgopt/offset.scm (4.10), compiler/fgopt/operan.scm (4.9),
	compiler/fgopt/order.scm (4.18), compiler/fgopt/outer.scm (4.7),
	compiler/fgopt/param.scm (1.5), compiler/fgopt/reord.scm (1.3),
	compiler/fgopt/reteqv.scm (1.3), compiler/fgopt/reuse.scm (1.9),
	compiler/fgopt/sideff.scm (1.10), compiler/fgopt/simapp.scm (4.10),
	compiler/fgopt/simple.scm (4.8), compiler/fgopt/subfre.scm (1.9),
	compiler/fgopt/varind.scm (1.6), compiler/machines/C/compiler.cbf
	(1.4), compiler/machines/C/compiler.pkg (1.15),
	compiler/machines/C/compiler.sf (1.10),
	compiler/machines/C/cout.scm (1.22), compiler/machines/C/ctop.scm
	(1.14), compiler/machines/C/cutl.scm (1.3),
	compiler/machines/C/decls.scm (1.7), compiler/machines/C/lapgen.scm
	(1.15), compiler/machines/C/machin.scm (1.9),
	compiler/machines/C/make.scm (1.4), compiler/machines/C/rgspcm.scm
	(1.4), compiler/machines/C/rules1.scm (1.9),
	compiler/machines/C/rules2.scm (1.4),
	compiler/machines/C/rules3.scm (1.12),
	compiler/machines/C/rules4.scm (1.3),
	compiler/machines/C/rulfix.scm (1.6),
	compiler/machines/C/rulflo.scm (1.8),
	compiler/machines/C/rulrew.scm (1.5),
	compiler/machines/alpha/assmd.scm (1.5),
	compiler/machines/alpha/coerce.scm (1.4),
	compiler/machines/alpha/compiler.cbf (1.4),
	compiler/machines/alpha/compiler.pkg (1.18),
	compiler/machines/alpha/compiler.sf (1.11),
	compiler/machines/alpha/dassm1.scm (1.5),
	compiler/machines/alpha/dassm2.scm (1.5),
	compiler/machines/alpha/dassm3.scm (1.3),
	compiler/machines/alpha/decls.scm (1.9),
	compiler/machines/alpha/inerly.scm (1.7),
	compiler/machines/alpha/insmac.scm (1.7),
	compiler/machines/alpha/instr1.scm (1.7),
	compiler/machines/alpha/instr2.scm (1.5),
	compiler/machines/alpha/instr3.scm (1.5),
	compiler/machines/alpha/lapgen.scm (1.10),
	compiler/machines/alpha/lapopt.scm (1.3),
	compiler/machines/alpha/machin.scm (1.9),
	compiler/machines/alpha/make.scm (1.5),
	compiler/machines/alpha/rgspcm.scm (1.3),
	compiler/machines/alpha/rules1.scm (1.5),
	compiler/machines/alpha/rules2.scm (1.4),
	compiler/machines/alpha/rules3.scm (1.11),
	compiler/machines/alpha/rules4.scm (1.5),
	compiler/machines/alpha/rulfix.scm (1.6),
	compiler/machines/alpha/rulflo.scm (1.7),
	compiler/machines/alpha/rulrew.scm (1.4),
	compiler/machines/bobcat/assmd.scm (1.40),
	compiler/machines/bobcat/coerce.scm (1.12),
	compiler/machines/bobcat/compiler.cbf (1.4),
	compiler/machines/bobcat/compiler.pkg (1.55),
	compiler/machines/bobcat/compiler.sf (1.23),
	compiler/machines/bobcat/dassm1.scm (4.23),
	compiler/machines/bobcat/dassm2.scm (4.26),
	compiler/machines/bobcat/dassm3.scm (4.10),
	compiler/machines/bobcat/decls.scm (4.40),
	compiler/machines/bobcat/flinstr1.scm (1.5),
	compiler/machines/bobcat/flinstr2.scm (1.5),
	compiler/machines/bobcat/inerly.scm (1.12),
	compiler/machines/bobcat/insmac.scm (1.133),
	compiler/machines/bobcat/instr1.scm (1.69),
	compiler/machines/bobcat/instr2.scm (1.22),
	compiler/machines/bobcat/instr3.scm (1.21),
	compiler/machines/bobcat/instr4.scm (1.7),
	compiler/machines/bobcat/insutl.scm (1.10),
	compiler/machines/bobcat/lapgen.scm (4.54),
	compiler/machines/bobcat/lapopt.scm (1.3),
	compiler/machines/bobcat/machin.scm (4.35),
	compiler/machines/bobcat/make.scm-68020 (4.90),
	compiler/machines/bobcat/make.scm-68040 (4.91),
	compiler/machines/bobcat/mc68ktgl.scm (1.4),
	compiler/machines/bobcat/rgspcm.scm (4.4),
	compiler/machines/bobcat/rules1.scm (4.40),
	compiler/machines/bobcat/rules2.scm (4.16),
	compiler/machines/bobcat/rules3.scm (4.44),
	compiler/machines/bobcat/rules4.scm (4.16),
	compiler/machines/bobcat/rulrew.scm (1.8),
	compiler/machines/i386/assmd.scm (1.7),
	compiler/machines/i386/coerce.scm (1.4),
	compiler/machines/i386/compiler.cbf (1.5),
	compiler/machines/i386/compiler.pkg (1.30),
	compiler/machines/i386/compiler.sf (1.19),
	compiler/machines/i386/dassm1.scm (1.14),
	compiler/machines/i386/dassm2.scm (1.13),
	compiler/machines/i386/dassm3.scm (1.11),
	compiler/machines/i386/decls.scm (1.12),
	compiler/machines/i386/inerly.scm (1.8),
	compiler/machines/i386/insmac.scm (1.18),
	compiler/machines/i386/instr1.scm (1.17),
	compiler/machines/i386/instr2.scm (1.11),
	compiler/machines/i386/instrf.scm (1.19),
	compiler/machines/i386/insutl.scm (1.12),
	compiler/machines/i386/lapgen.scm (1.32),
	compiler/machines/i386/lapopt.scm (1.7),
	compiler/machines/i386/machin.scm (1.20),
	compiler/machines/i386/make.scm (1.7),
	compiler/machines/i386/pc-make.scm (1.3),
	compiler/machines/i386/rgspcm.scm (1.5),
	compiler/machines/i386/rules1.scm (1.20),
	compiler/machines/i386/rules2.scm (1.10),
	compiler/machines/i386/rules3.scm (1.39),
	compiler/machines/i386/rules4.scm (1.9),
	compiler/machines/i386/rulfix.scm (1.35),
	compiler/machines/i386/rulflo.scm (1.26),
	compiler/machines/i386/rulrew.scm (1.15),
	compiler/machines/mips/assmd.scm (1.6),
	compiler/machines/mips/coerce.scm (1.3),
	compiler/machines/mips/compiler.cbf (1.4),
	compiler/machines/mips/compiler.pkg (1.25),
	compiler/machines/mips/compiler.sf-big (1.13),
	compiler/machines/mips/compiler.sf-little (1.13),
	compiler/machines/mips/dassm1.scm (1.8),
	compiler/machines/mips/dassm2.scm (1.8),
	compiler/machines/mips/dassm3.scm (1.5),
	compiler/machines/mips/decls.scm (1.13),
	compiler/machines/mips/inerly.scm (1.7),
	compiler/machines/mips/insmac.scm (1.7),
	compiler/machines/mips/instr1.scm (1.10),
	compiler/machines/mips/instr2a.scm (1.8),
	compiler/machines/mips/instr2b.scm (1.7),
	compiler/machines/mips/instr3.scm (1.6),
	compiler/machines/mips/lapgen.scm (1.19),
	compiler/machines/mips/lapopt.scm (1.3),
	compiler/machines/mips/machin.scm (1.16),
	compiler/machines/mips/make.scm-big (4.90),
	compiler/machines/mips/make.scm-little (4.90),
	compiler/machines/mips/mips.scm (1.5),
	compiler/machines/mips/rgspcm.scm (1.3),
	compiler/machines/mips/rules1.scm (1.8),
	compiler/machines/mips/rules2.scm (1.4),
	compiler/machines/mips/rules3.scm (1.21),
	compiler/machines/mips/rules4.scm (1.5),
	compiler/machines/mips/rulfix.scm (1.12),
	compiler/machines/mips/rulflo.scm (1.11),
	compiler/machines/mips/rulrew.scm (1.8),
	compiler/machines/sparc/assmd.scm (1.5),
	compiler/machines/sparc/cf.h-sparc (1.3),
	compiler/machines/sparc/cmpaux-sparc.m4 (1.3),
	compiler/machines/sparc/cmpint-sparc.h (1.3),
	compiler/machines/sparc/coerce.scm (1.3),
	compiler/machines/sparc/decls.scm (1.7),
	compiler/machines/sparc/inerly.scm (1.7),
	compiler/machines/sparc/insmac.scm (1.6),
	compiler/machines/sparc/instr1.scm (1.5),
	compiler/machines/sparc/instr2a.scm (1.5),
	compiler/machines/sparc/instr2b.scm (1.5),
	compiler/machines/sparc/instr3.scm (1.5),
	compiler/machines/sparc/lapgen.scm (1.6),
	compiler/machines/sparc/lapopt.scm (1.3),
	compiler/machines/sparc/machin.scm (1.4),
	compiler/machines/sparc/make.scm (1.4),
	compiler/machines/sparc/rgspcm.scm (1.3),
	compiler/machines/sparc/rules1.scm (1.3),
	compiler/machines/sparc/rules2.scm (1.3),
	compiler/machines/sparc/rules3.scm (1.5),
	compiler/machines/sparc/rules4.scm (1.3),
	compiler/machines/sparc/rulfix.scm (1.3),
	compiler/machines/sparc/rulflo.scm (1.5),
	compiler/machines/sparc/rulrew.scm (1.3),
	compiler/machines/spectrum/assmd.scm (1.34),
	compiler/machines/spectrum/coerce.scm (1.7),
	compiler/machines/spectrum/compiler.cbf (1.4),
	compiler/machines/spectrum/compiler.pkg (1.55),
	compiler/machines/spectrum/compiler.sf (1.23),
	compiler/machines/spectrum/dassm1.scm (4.23),
	compiler/machines/spectrum/dassm2.scm (4.24),
	compiler/machines/spectrum/dassm3.scm (1.4),
	compiler/machines/spectrum/decls.scm (4.38),
	compiler/machines/spectrum/inerly.scm (1.7),
	compiler/machines/spectrum/insmac.scm (1.7),
	compiler/machines/spectrum/instr1.scm (1.7),
	compiler/machines/spectrum/instr2.scm (1.12),
	compiler/machines/spectrum/instr3.scm (1.6),
	compiler/machines/spectrum/lapgen.scm (4.51),
	compiler/machines/spectrum/lapopt.scm (1.16),
	compiler/machines/spectrum/machin.scm (4.31),
	compiler/machines/spectrum/make.scm (4.91),
	compiler/machines/spectrum/rgspcm.scm (4.5),
	compiler/machines/spectrum/rules1.scm (4.37),
	compiler/machines/spectrum/rules2.scm (4.16),
	compiler/machines/spectrum/rules3.scm (4.45),
	compiler/machines/spectrum/rules4.scm (4.14),
	compiler/machines/spectrum/rulfix.scm (4.51),
	compiler/machines/spectrum/rulflo.scm (4.43),
	compiler/machines/spectrum/rulrew.scm (1.14),
	compiler/machines/vax/assmd.scm (4.10),
	compiler/machines/vax/coerce.scm (1.6),
	compiler/machines/vax/compiler.cbf (1.7),
	compiler/machines/vax/compiler.pkg (1.27),
	compiler/machines/vax/compiler.sf (1.14),
	compiler/machines/vax/dassm1.scm (4.10),
	compiler/machines/vax/dassm2.scm (4.16),
	compiler/machines/vax/dassm3.scm (1.5),
	compiler/machines/vax/decls.scm (4.16),
	compiler/machines/vax/dsyn.scm (1.13),
	compiler/machines/vax/inerly.scm (1.11),
	compiler/machines/vax/insmac.scm (1.18),
	compiler/machines/vax/instr1.scm (1.11),
	compiler/machines/vax/instr2.scm (1.12),
	compiler/machines/vax/instr3.scm (1.15),
	compiler/machines/vax/insutl.scm (4.5),
	compiler/machines/vax/lapgen.scm (4.19),
	compiler/machines/vax/lapopt.scm (1.3),
	compiler/machines/vax/machin.scm (4.14),
	compiler/machines/vax/make.scm (4.90),
	compiler/machines/vax/rgspcm.scm (4.4),
	compiler/machines/vax/rules1.scm (4.9),
	compiler/machines/vax/rules2.scm (4.6),
	compiler/machines/vax/rules3.scm (4.15),
	compiler/machines/vax/rules4.scm (4.6),
	compiler/machines/vax/rulfix.scm (1.9),
	compiler/machines/vax/rulrew.scm (1.4), compiler/rtlbase/regset.scm
	(1.5), compiler/rtlbase/rgraph.scm (4.9),
	compiler/rtlbase/rtlcfg.scm (4.11), compiler/rtlbase/rtlcon.scm
	(4.31), compiler/rtlbase/rtlexp.scm (4.21),
	compiler/rtlbase/rtline.scm (4.12), compiler/rtlbase/rtlobj.scm
	(4.13), compiler/rtlbase/rtlreg.scm (4.10),
	compiler/rtlbase/rtlty1.scm (4.24), compiler/rtlbase/rtlty2.scm
	(4.14), compiler/rtlbase/valclass.scm (1.6),
	compiler/rtlgen/fndblk.scm (4.13), compiler/rtlgen/fndvar.scm
	(1.8), compiler/rtlgen/opncod.scm (4.71),
	compiler/rtlgen/rgcomb.scm (4.22), compiler/rtlgen/rgproc.scm
	(4.15), compiler/rtlgen/rgretn.scm (4.15),
	compiler/rtlgen/rgrval.scm (4.24), compiler/rtlgen/rgstmt.scm
	(4.18), compiler/rtlgen/rtlgen.scm (4.31),
	compiler/rtlopt/ralloc.scm (1.19), compiler/rtlopt/rcompr.scm
	(1.16), compiler/rtlopt/rcse1.scm (4.25), compiler/rtlopt/rcse2.scm
	(4.15), compiler/rtlopt/rcseep.scm (4.8),
	compiler/rtlopt/rcseht.scm (4.14), compiler/rtlopt/rcserq.scm
	(4.8), compiler/rtlopt/rcsesr.scm (4.5), compiler/rtlopt/rdebug.scm
	(1.5), compiler/rtlopt/rdflow.scm (1.5), compiler/rtlopt/rerite.scm
	(1.5), compiler/rtlopt/rinvex.scm (1.11), compiler/rtlopt/rlife.scm
	(1.62), compiler/rtlopt/rtlcsm.scm (1.3), cref/Makefile.in (1.3),
	cref/anfile.scm (1.8), cref/conpkg.scm (1.15), cref/cref.cbf (1.4),
	cref/cref.pkg (1.11), cref/cref.sf (1.16), cref/forpkg.scm (1.11),
	cref/make.scm (1.26), cref/mset.scm (1.3), cref/object.scm (1.15),
	cref/redpkg.scm (1.27), cref/toplev.scm (1.19), cref/triv.pkg
	(1.8), edwin/Clean.sh (1.6), edwin/Makefile.in (1.5),
	edwin/abbrev.scm (1.7), edwin/ansi.scm (1.9), edwin/argred.scm
	(1.34), edwin/artdebug.scm (1.31), edwin/autold.scm (1.63),
	edwin/autosv.scm (1.35), edwin/basic.scm (1.141), edwin/bios.scm
	(1.6), edwin/bufcom.scm (1.108), edwin/buffer.scm (1.188),
	edwin/buffrm.scm (1.60), edwin/bufinp.scm (1.9), edwin/bufmnu.scm
	(1.132), edwin/bufout.scm (1.14), edwin/bufset.scm (1.13),
	edwin/bufwfs.scm (1.21), edwin/bufwin.scm (1.311), edwin/bufwiu.scm
	(1.35), edwin/bufwmc.scm (1.19), edwin/c-mode.scm (1.61),
	edwin/calias.scm (1.26), edwin/cinden.scm (1.21), edwin/class.scm
	(1.73), edwin/clscon.scm (1.9), edwin/clsmac.scm (1.11),
	edwin/comatch.scm (1.5), edwin/comhst.scm (1.8), edwin/comint.scm
	(1.31), edwin/comman.scm (1.87), edwin/compile.scm (1.15),
	edwin/comred.scm (1.124), edwin/comtab.scm (1.73), edwin/comwin.scm
	(1.148), edwin/curren.scm (1.145), edwin/dabbrev.scm (1.5),
	edwin/debian-changelog.scm (1.7), edwin/debug.scm (1.63),
	edwin/debuge.scm (1.55), edwin/decls.scm (1.72), edwin/dired.scm
	(1.191), edwin/diros2.scm (1.5), edwin/dirunx.scm (1.14),
	edwin/dirw32.scm (1.5), edwin/display.scm (1.8), edwin/docstr.scm
	(1.6), edwin/dos.scm (1.54), edwin/doscom.scm (1.4),
	edwin/dosfile.scm (1.39), edwin/dosproc.scm (1.10),
	edwin/dosshell.scm (1.6), edwin/ed-ffi.scm (1.53), edwin/editor.scm
	(1.254), edwin/edtfrm.scm (1.92), edwin/edtstr.scm (1.24),
	edwin/edwin.cbf (1.5), edwin/edwin.ldr (1.74), edwin/edwin.pkg
	(1.282), edwin/edwin.sf (1.30), edwin/evlcom.scm (1.66),
	edwin/eystep.scm (1.7), edwin/filcom.scm (1.224), edwin/fileio.scm
	(1.159), edwin/fill.scm (1.71), edwin/grpops.scm (1.29),
	edwin/hlpcom.scm (1.124), edwin/htmlmode.scm (1.6), edwin/image.scm
	(1.138), edwin/info.scm (1.138), edwin/input.scm (1.103),
	edwin/intmod.scm (1.117), edwin/iserch.scm (1.24),
	edwin/javamode.scm (1.12), edwin/key-w32.scm (1.4),
	edwin/key-x11.scm (1.6), edwin/keymap.scm (1.18),
	edwin/keyparse.scm (1.4), edwin/kilcom.scm (1.73), edwin/kmacro.scm
	(1.45), edwin/lincom.scm (1.125), edwin/linden.scm (1.127),
	edwin/loadef.scm (1.46), edwin/lspcom.scm (1.161), edwin/macros.scm
	(1.73), edwin/make.scm (3.116), edwin/malias.scm (1.6),
	edwin/manual.scm (1.17), edwin/midas.scm (1.23), edwin/modefs.scm
	(1.161), edwin/modes.scm (1.36), edwin/modlin.scm (1.24),
	edwin/modwin.scm (1.43), edwin/motcom.scm (1.48), edwin/motion.scm
	(1.89), edwin/mousecom.scm (1.6), edwin/nntp.scm (1.25),
	edwin/notify.scm (1.21), edwin/nvector.scm (1.9), edwin/occur.scm
	(1.6), edwin/os2.scm (1.52), edwin/os2com.scm (1.6),
	edwin/os2term.scm (1.23), edwin/outline.scm (1.10),
	edwin/pasmod.scm (1.52), edwin/paths.scm (1.17), edwin/print.scm
	(1.21), edwin/process.scm (1.62), edwin/prompt.scm (1.199),
	edwin/pwedit.scm (1.9), edwin/pwparse.scm (1.2), edwin/rcsparse.scm
	(1.5), edwin/reccom.scm (1.15), edwin/regcom.scm (1.23),
	edwin/regexp.scm (1.79), edwin/regops.scm (1.89), edwin/rename.scm
	(1.9), edwin/replaz.scm (1.81), edwin/rfc822.scm (3.4),
	edwin/ring.scm (1.13), edwin/rmail.scm (1.73), edwin/rmailsrt.scm
	(1.14), edwin/rmailsum.scm (1.37), edwin/schmod.scm (1.60),
	edwin/scrcom.scm (1.9), edwin/screen.scm (1.119), edwin/search.scm
	(1.156), edwin/sendmail.scm (1.79), edwin/sercom.scm (1.66),
	edwin/shell.scm (1.25), edwin/simple.scm (1.55), edwin/snr.scm
	(1.62), edwin/sort.scm (1.9), edwin/strpad.scm (1.9),
	edwin/strtab.scm (1.48), edwin/struct.scm (1.96), edwin/syntax.scm
	(1.90), edwin/tagutl.scm (1.60), edwin/techinfo.scm (1.7),
	edwin/telnet.scm (1.16), edwin/termcap.scm (1.8), edwin/texcom.scm
	(1.47), edwin/things.scm (1.89), edwin/tparse.scm (1.76),
	edwin/tterm.scm (1.35), edwin/tximod.scm (1.26), edwin/txtprp.scm
	(1.24), edwin/undo.scm (1.60), edwin/unix.scm (1.111),
	edwin/utils.scm (1.52), edwin/utlwin.scm (1.61), edwin/vc.scm
	(1.80), edwin/verilog.scm (1.10), edwin/vhdl.scm (1.10),
	edwin/webster.scm (1.6), edwin/win32.scm (1.16), edwin/win32com.scm
	(1.9), edwin/wincom.scm (1.133), edwin/window.scm (1.161),
	edwin/winout.scm (1.15), edwin/winren.scm (1.7), edwin/xcom.scm
	(1.22), edwin/xform.scm (1.13), edwin/xmodef.scm (1.4),
	edwin/xterm.scm (1.70), etc/Clean.sh (1.7), etc/Setup.sh (1.7),
	etc/Stage.sh (1.4), etc/Tags.sh (1.2), etc/build-bands.sh (1.2),
	etc/compile.scm (1.5), etc/compile.sh (1.3), etc/functions.sh
	(1.2), etc/optiondb.scm (1.10), imail/Makefile.in (1.4),
	imail/compile.scm (1.17), imail/ed-ffi.scm (1.19),
	imail/imail-browser.scm (1.9), imail/imail-core.scm (1.147),
	imail/imail-file.scm (1.82), imail/imail-imap.scm (1.196),
	imail/imail-rmail.scm (1.71), imail/imail-summary.scm (1.49),
	imail/imail-top.scm (1.284), imail/imail-umail.scm (1.52),
	imail/imail-util.scm (1.40), imail/imail.pkg (1.97),
	imail/imap-response.scm (1.46), imail/imap-syntax.scm (1.19),
	imail/load.scm (1.40), imail/print.sh (1.10), imail/url.scm (1.12),
	microcode/Clean.sh (1.2), microcode/Setup.sh (1.6),
	microcode/acconfig.h (11.5), microcode/array.c (9.47),
	microcode/array.h (9.37), microcode/artutl.c (1.17),
	microcode/avltree.c (1.6), microcode/avltree.h (1.5),
	microcode/bchdmp.c (9.91), microcode/bchdrn.c (1.11),
	microcode/bchdrn.h (1.11), microcode/bchgcc.h (9.64),
	microcode/bchgcl.c (9.55), microcode/bchmmg.c (9.102),
	microcode/bchpur.c (9.73), microcode/bchutl.c (1.12),
	microcode/bignmint.h (1.7), microcode/bignum.c (9.50),
	microcode/bignum.h (9.32), microcode/bigprm.c (1.7),
	microcode/bintopsb.c (9.75), microcode/bitstr.c (9.64),
	microcode/bitstr.h (1.11), microcode/bkpt.c (9.33),
	microcode/bkpt.h (9.35), microcode/bltdef.h (1.5), microcode/boot.c
	(9.109), microcode/breakup.c (9.26), microcode/char.c (9.34),
	microcode/cmpgc.h (1.33), microcode/cmpint.c (1.99),
	microcode/cmpint.h (10.10), microcode/cmptype.h (1.4),
	microcode/comlin.c (1.10), microcode/comlin.h (1.8),
	microcode/compinit.c (1.5), microcode/comutl.c (1.32),
	microcode/configure.in (11.18), microcode/confshared.h (11.4),
	microcode/const.h (9.47), microcode/copyrigh.c (1.4),
	microcode/critsec.h (1.5), microcode/daemon.c (9.32),
	microcode/debug.c (9.56), microcode/default.h (9.46),
	microcode/dfloat.c (1.7), microcode/dmpwrld.c (9.42),
	microcode/dstack.h (1.10), microcode/dump.c (9.41),
	microcode/edwin.h (1.10), microcode/error.c (1.8),
	microcode/errors.h (9.45), microcode/extern.c (9.39),
	microcode/extern.h (9.63), microcode/fasdump.c (9.67),
	microcode/fasl.h (9.39), microcode/fasload.c (9.95),
	microcode/fft.c (9.34), microcode/fhooks.c (9.36),
	microcode/findprim.c (9.56), microcode/fixnum.c (9.45),
	microcode/fixobj.h (9.39), microcode/flonum.c (9.44),
	microcode/foreign.c (1.4), microcode/foreign.h (1.4),
	microcode/future.c (9.30), microcode/futures.h (9.31),
	microcode/gc.h (9.35), microcode/gccode.h (9.59),
	microcode/gcloop.c (9.50), microcode/gctype.c (9.35),
	microcode/generic.c (9.40), microcode/gpio.c (1.12),
	microcode/history.h (9.32), microcode/hooks.c (9.64),
	microcode/hppacach.c (1.14), microcode/hppacach.h (1.7),
	microcode/hppanwca.c (1.6), microcode/hunk.c (9.30),
	microcode/image.c (9.35), microcode/image.h (9.26),
	microcode/intercom.c (9.34), microcode/intern.c (9.58),
	microcode/interp.c (9.97), microcode/interp.h (9.49),
	microcode/intext.c (1.6), microcode/intext.h (1.6),
	microcode/intprm.c (1.10), microcode/intrpt.h (1.22),
	microcode/liarc.h (1.20), microcode/list.c (9.33), microcode/load.c
	(9.40), microcode/locks.h (9.27), microcode/lookprm.c (1.20),
	microcode/lookup.c (9.69), microcode/lookup.h (9.56),
	microcode/memmag.c (9.70), microcode/memmag.h (1.9),
	microcode/missing.c (9.34), microcode/mul.c (9.36), microcode/nt.h
	(1.10), microcode/ntapi.h (1.14), microcode/ntasutl.asm (1.7),
	microcode/ntenv.c (1.20), microcode/ntfile.c (1.14),
	microcode/ntfs.c (1.29), microcode/ntfs.h (1.6), microcode/ntgui.c
	(1.29), microcode/ntgui.h (1.9), microcode/ntio.c (1.25),
	microcode/ntio.h (1.12), microcode/ntproc.c (1.9),
	microcode/ntproc.h (1.3), microcode/ntscmlib.h (1.10),
	microcode/ntscreen.c (1.48), microcode/ntscreen.h (1.21),
	microcode/ntsig.c (1.23), microcode/ntsock.c (1.14),
	microcode/ntsys.c (1.10), microcode/ntsys.h (1.9),
	microcode/ntterm.h (1.5), microcode/nttop.c (1.31),
	microcode/nttop.h (1.5), microcode/nttrap.c (1.24),
	microcode/nttrap.h (1.6), microcode/nttterm.c (1.5),
	microcode/nttty.c (1.9), microcode/object.h (9.52),
	microcode/option.c (1.57), microcode/option.h (1.13),
	microcode/os.h (1.8), microcode/os2.c (1.9), microcode/os2.h (1.9),
	microcode/os2api.h (1.13), microcode/os2conio.c (1.11),
	microcode/os2cthrd.c (1.11), microcode/os2cthrd.h (1.8),
	microcode/os2ctty.c (1.5), microcode/os2ctty.h (1.3),
	microcode/os2env.c (1.15), microcode/os2file.c (1.4),
	microcode/os2fs.c (1.15), microcode/os2io.c (1.9),
	microcode/os2io.h (1.5), microcode/os2msg.c (1.15),
	microcode/os2msg.h (1.16), microcode/os2pipe.c (1.9),
	microcode/os2pm.c (1.34), microcode/os2pm.h (1.14),
	microcode/os2pm.scm (1.12), microcode/os2pmcon.c (1.27),
	microcode/os2pmcon.h (1.5), microcode/os2pmcon.rc (1.6),
	microcode/os2proc.c (1.8), microcode/os2proc.h (1.3),
	microcode/os2sock.c (1.19), microcode/os2term.c (1.5),
	microcode/os2thrd.c (1.7), microcode/os2thrd.h (1.5),
	microcode/os2top.c (1.22), microcode/os2tty.c (1.3),
	microcode/os2xcpt.c (1.14), microcode/osctty.h (1.5),
	microcode/osenv.h (1.11), microcode/osfile.h (1.4),
	microcode/osfs.h (1.11), microcode/osio.h (1.16),
	microcode/osproc.h (1.11), microcode/ospty.h (1.5),
	microcode/osscheme.c (1.13), microcode/osscheme.h (1.12),
	microcode/ossig.h (1.5), microcode/osterm.h (1.12),
	microcode/ostop.h (1.6), microcode/ostty.c (1.5), microcode/ostty.h
	(1.6), microcode/outf.c (1.13), microcode/outf.h (1.6),
	microcode/ppband.c (9.51), microcode/prbfish.c (1.13),
	microcode/prename.h (1.10), microcode/prgdbm.c (1.4),
	microcode/prim.c (9.40), microcode/prim.h (9.48), microcode/prims.h
	(9.51), microcode/primutl.c (9.75), microcode/prmcon.c (1.6),
	microcode/prmcon.h (1.5), microcode/prmcrypt.c (1.4),
	microcode/prmd5.c (1.8), microcode/prmhash.c (11.5),
	microcode/prntenv.c (1.11), microcode/prntfs.c (1.18),
	microcode/prntio.c (1.14), microcode/pros2fs.c (1.19),
	microcode/pros2io.c (1.10), microcode/pros2pm.c (1.22),
	microcode/prosenv.c (1.18), microcode/prosfile.c (1.10),
	microcode/prosfs.c (1.17), microcode/prosio.c (1.19),
	microcode/prosproc.c (1.20), microcode/prospty.c (1.5),
	microcode/prosterm.c (1.17), microcode/prostty.c (1.8),
	microcode/pruxdld.c (1.15), microcode/pruxenv.c (1.20),
	microcode/pruxfs.c (9.57), microcode/pruxio.c (1.9),
	microcode/pruxsock.c (1.21), microcode/psbmap.h (9.46),
	microcode/psbtobin.c (9.60), microcode/ptrvec.c (1.4),
	microcode/purify.c (9.64), microcode/purutl.c (9.53),
	microcode/regex.c (1.21), microcode/regex.h (1.8),
	microcode/returns.h (9.44), microcode/rgxprim.c (1.14),
	microcode/sample.c (9.27), microcode/scheme.h (9.40),
	microcode/scode.h (9.28), microcode/sdata.h (9.41),
	microcode/sgraph.h (1.8), microcode/sgraph_a.c (1.17),
	microcode/sgx.c (1.10), microcode/sgx11.c (1.5), microcode/stack.h
	(9.43), microcode/starbase.c (1.8), microcode/starbasx.c (1.7),
	microcode/step.c (9.37), microcode/storage.c (9.59),
	microcode/string.c (9.48), microcode/syntax.c (1.26),
	microcode/syntax.h (1.11), microcode/syscall.h (1.14),
	microcode/sysprim.c (9.49), microcode/term.c (1.17),
	microcode/transact.c (1.6), microcode/trap.h (9.50),
	microcode/tterm.c (1.15), microcode/types.h (9.39),
	microcode/usrdef.h (9.45), microcode/utabmd.scm (9.85),
	microcode/utabmd.sh (1.3), microcode/utils.c (9.84), microcode/ux.c
	(1.22), microcode/ux.h (1.75), microcode/uxctty.c (1.15),
	microcode/uxenv.c (1.22), microcode/uxfile.c (1.11),
	microcode/uxfs.c (1.23), microcode/uxio.c (1.47), microcode/uxio.h
	(1.6), microcode/uxproc.c (1.28), microcode/uxproc.h (1.7),
	microcode/uxselect.h (1.7), microcode/uxsig.c (1.38),
	microcode/uxsig.h (1.7), microcode/uxsock.c (1.29),
	microcode/uxsock.h (1.11), microcode/uxterm.c (1.29),
	microcode/uxterm.h (1.6), microcode/uxtop.c (1.26),
	microcode/uxtop.h (1.4), microcode/uxtrap.c (1.36),
	microcode/uxtrap.h (1.31), microcode/uxtty.c (1.11),
	microcode/uxutil.c (1.8), microcode/uxutil.h (1.4),
	microcode/uxyp.c (1.4), microcode/vector.c (9.40),
	microcode/version.h (11.186), microcode/wabbit.c (1.10),
	microcode/wind.c (1.7), microcode/winder.h (9.27),
	microcode/wsize.c (9.35), microcode/x11.h (1.18),
	microcode/x11base.c (1.78), microcode/x11color.c (1.6),
	microcode/x11graph.c (1.42), microcode/x11term.c (1.28),
	microcode/xdebug.c (9.36), microcode/zones.h (9.27),
	microcode/cmpauxmd/asmcvt.c (1.3), microcode/cmpauxmd/c.c (1.14),
	microcode/cmpauxmd/hppa.m4 (1.41), microcode/cmpauxmd/i386.m4
	(1.60), microcode/cmpauxmd/m4-dos (1.3),
	microcode/cmpauxmd/makefile (1.8), microcode/cmpauxmd/mc68k.m4
	(1.29), microcode/cmpauxmd/mips.m4 (1.17),
	microcode/cmpauxmd/vax.m4 (1.6), microcode/cmpintmd/c.h (1.8),
	microcode/cmpintmd/hppa.h (1.53), microcode/cmpintmd/i386.h (1.36),
	microcode/cmpintmd/mc68k.h (1.37), microcode/cmpintmd/mips.h
	(1.24), microcode/cmpintmd/vax.h (1.10),
	microcode/makegen/Makefile.in.in (1.21),
	microcode/makegen/files-core.scm (1.3),
	microcode/makegen/files-gc-bch.scm (1.3),
	microcode/makegen/files-gc-std.scm (1.3),
	microcode/makegen/files-optional.scm (1.4),
	microcode/makegen/files-os-prim.scm (1.3),
	microcode/makegen/files-other.scm (1.3),
	microcode/makegen/files-unix.scm (1.3), microcode/makegen/m4.sh
	(1.3), microcode/makegen/makegen.scm (1.4),
	microcode/makegen/makeinit.sh (1.9), microcode/ntutl/bch-p-nt.lst
	(1.7), microcode/ntutl/config.h (1.5), microcode/ntutl/makefile
	(1.29), microcode/ntutl/makefile.wcc (1.18),
	microcode/ntutl/scheme16.c (1.12), microcode/ntutl/scheme31.c
	(1.11), microcode/ntutl/scheme32.c (1.18),
	microcode/ntutl/scm-p-nt.lst (1.7), microcode/os2utl/config.h
	(1.5), microcode/os2utl/makefile (1.16),
	microcode/os2utl/makefile.cmn (1.14), microcode/os2utl/makefile.emx
	(1.10), microcode/os2utl/makefile.gcc (1.8),
	microcode/os2utl/makefile.vac (1.8), microcode/os2utl/makefile.wcc
	(1.9), microcode/os2utl/mkos2pm.scm (1.3), pcsample/load.scm (1.7),
	pcsample/pcs.cbf (1.4), pcsample/pcs.pkg (1.4), pcsample/pcs.sf
	(1.4), pcsample/pcsample.c (1.7), pcsample/pcsample.scm (1.4),
	pcsample/pcsboot.scm (1.3), pcsample/pcscobl.c (1.3),
	pcsample/pcscobl.scm (1.3), pcsample/pcsdisp.scm (1.4),
	pcsample/pcsdld.c (1.6), pcsample/pcsintrp.scm (1.3),
	pcsample/pcsiproc.c (1.3), pcsample/pcsiproc.scm (1.3),
	pcsample/pribinut.scm (1.3), rcs/compile.scm (1.5), rcs/format.scm
	(1.4), rcs/load.scm (1.4), rcs/logmer.scm (1.28), rcs/mklogs.scm
	(1.23), rcs/nparse.scm (1.4), rcs/object.scm (1.6), rcs/rcs.pkg
	(1.8), runtime/Makefile.in (1.7), runtime/advice.scm (14.18),
	runtime/apply.scm (1.6), runtime/apropos.scm (1.6),
	runtime/arith.scm (1.51), runtime/bitstr.scm (14.5),
	runtime/blowfish.scm (1.25), runtime/boole.scm (14.5),
	runtime/boot.scm (14.14), runtime/char.scm (14.14),
	runtime/chrset.scm (14.17), runtime/chrsyn.scm (1.6),
	runtime/codwlk.scm (14.5), runtime/conpar.scm (14.40),
	runtime/contin.scm (14.11), runtime/cpoint.scm (14.6),
	runtime/cpress.scm (1.13), runtime/crypto.scm (14.15),
	runtime/datime.scm (14.34), runtime/dbgcmd.scm (14.17),
	runtime/dbgutl.scm (14.22), runtime/debug.scm (14.44),
	runtime/defstr.scm (14.41), runtime/dosdir.scm (1.11),
	runtime/dosprm.scm (1.44), runtime/dosproc.scm (1.4),
	runtime/dospth.scm (1.42), runtime/dragon4.scm (1.16),
	runtime/ed-ffi.scm (1.33), runtime/emacs.scm (14.30),
	runtime/equals.scm (14.10), runtime/error.scm (14.58),
	runtime/events.scm (14.6), runtime/fileio.scm (1.20),
	runtime/fixart.scm (1.9), runtime/format.scm (14.7),
	runtime/framex.scm (14.20), runtime/gc.scm (14.17),
	runtime/gcdemn.scm (14.9), runtime/gcfinal.scm (14.4),
	runtime/gcnote.scm (14.15), runtime/gcstat.scm (14.7),
	runtime/gdatab.scm (14.7), runtime/gdbm.scm (1.4),
	runtime/gencache.scm (1.3), runtime/geneqht.scm (1.3),
	runtime/generic.scm (1.3), runtime/genio.scm (1.16),
	runtime/genmult.scm (1.3), runtime/gensym.scm (14.7),
	runtime/gentag.scm (1.3), runtime/global.scm (14.58),
	runtime/graphics.scm (1.22), runtime/hash.scm (14.7),
	runtime/hashtb.scm (1.24), runtime/histry.scm (14.7),
	runtime/infstr.scm (1.16), runtime/infutl.scm (1.68),
	runtime/input.scm (14.21), runtime/intrpt.scm (14.23),
	runtime/io.scm (14.65), runtime/krypt.scm (1.13),
	runtime/kryptdum.scm (1.3), runtime/lambda.scm (14.18),
	runtime/lambdx.scm (14.11), runtime/list.scm (14.31),
	runtime/load.scm (14.62), runtime/make.scm (14.87),
	runtime/mime-codec.scm (14.12), runtime/mit-syntax.scm (14.9),
	runtime/msort.scm (14.10), runtime/ntdir.scm (1.3),
	runtime/ntprm.scm (1.38), runtime/numint.scm (1.7),
	runtime/numpar.scm (14.18), runtime/option.scm (14.42),
	runtime/optiondb.scm (1.15), runtime/ordvec.scm (1.3),
	runtime/os2ctype.scm (1.4), runtime/os2dir.scm (1.6),
	runtime/os2graph.scm (1.20), runtime/os2prm.scm (1.49),
	runtime/os2winp.scm (1.19), runtime/output.scm (14.24),
	runtime/packag.scm (14.41), runtime/parse.scm (14.38),
	runtime/parser-buffer.scm (1.5), runtime/partab.scm (14.6),
	runtime/pathnm.scm (14.35), runtime/poplat.scm (14.5),
	runtime/port.scm (1.24), runtime/pp.scm (14.44), runtime/prgcop.scm
	(1.8), runtime/process.scm (1.27), runtime/prop1d.scm (14.7),
	runtime/prop2d.scm (14.4), runtime/qsort.scm (14.6),
	runtime/queue.scm (14.6), runtime/random.scm (14.25),
	runtime/rbtree.scm (1.8), runtime/record.scm (1.30),
	runtime/recslot.scm (1.8), runtime/regexp.scm (1.10),
	runtime/rep.scm (14.58), runtime/rexp.scm (1.19),
	runtime/rgxcmp.scm (1.122), runtime/runtime.cbf (1.4),
	runtime/runtime.pkg (14.415), runtime/runtime.sf (14.18),
	runtime/savres.scm (14.35), runtime/scan.scm (14.7),
	runtime/scode.scm (14.18), runtime/scomb.scm (14.21),
	runtime/sdata.scm (14.4), runtime/sfile.scm (14.33),
	runtime/site.scm.dos (1.15), runtime/site.scm.unix (1.16),
	runtime/socket.scm (1.19), runtime/starbase.scm (1.18),
	runtime/stream.scm (14.13), runtime/string.scm (14.48),
	runtime/strnin.scm (14.9), runtime/strott.scm (14.10),
	runtime/strout.scm (14.16), runtime/symbol.scm (1.8),
	runtime/syncproc.scm (1.9), runtime/syntactic-closures.scm (14.11),
	runtime/syntax-check.scm (14.3), runtime/syntax-output.scm (14.6),
	runtime/syntax-rules.scm (14.2), runtime/syntax-transforms.scm
	(14.2), runtime/sysclk.scm (14.5), runtime/sysmac.scm (14.11),
	runtime/system.scm (14.14), runtime/thread.scm (1.36),
	runtime/tscript.scm (1.5), runtime/ttyio.scm (1.13),
	runtime/tvector.scm (1.3), runtime/udata.scm (14.22),
	runtime/uenvir.scm (14.58), runtime/uerror.scm (14.51),
	runtime/unicode.scm (1.3), runtime/unpars.scm (14.51),
	runtime/unsyn.scm (14.29), runtime/unxdir.scm (14.13),
	runtime/unxprm.scm (1.63), runtime/unxpth.scm (14.27),
	runtime/uproc.scm (1.12), runtime/urtrap.scm (14.14),
	runtime/usrint.scm (1.18), runtime/utabs.scm (14.15),
	runtime/vector.scm (14.22), runtime/version.scm (14.210),
	runtime/where.scm (14.12), runtime/wind.scm (14.7),
	runtime/wrkdir.scm (14.9), runtime/wttree.scm (1.11),
	runtime/x11graph.scm (1.53), runtime/xeval.scm (1.11),
	runtime/ystep.scm (1.4), runtime-check/Clean.sh (1.4),
	runtime-check/Setup.sh (1.6), runtime-check/runtime.cbf (1.2),
	sf/butils.scm (4.12), sf/cgen.scm (4.6), sf/chtype.scm (4.5),
	sf/copy.scm (4.7), sf/emodel.scm (4.5), sf/free.scm (4.5),
	sf/gconst.scm (4.28), sf/gimprt.scm (4.3), sf/lsets.scm (4.4),
	sf/make.scm (4.42), sf/object.scm (4.16), sf/pardec.scm (4.15),
	sf/pthmap.scm (4.6), sf/reduct.scm (4.11), sf/sf.cbf (1.4),
	sf/sf.pkg (4.18), sf/sf.sf (4.12), sf/subst.scm (4.18),
	sf/table.scm (4.6), sf/tables.scm (4.4), sf/toplev.scm (4.25),
	sf/usicon.scm (4.6), sf/usiexp.scm (4.42), sf/xform.scm (4.12),
	sicp/compat.scm (1.9), sicp/genenv.scm (1.4), sicp/graphics.scm
	(1.6), sicp/sbuild.scm (1.6), sicp/stream.scm (1.3),
	sicp/strmac.scm (1.4), sicp/studen.scm (1.12), sos/Makefile.in
	(1.4), sos/class.scm (1.13), sos/compile.scm (1.6), sos/ed-ffi.scm
	(1.4), sos/instance.scm (1.15), sos/load.scm (1.12), sos/macros.scm
	(1.15), sos/method.scm (1.12), sos/microbench.scm (1.3),
	sos/printer.scm (1.3), sos/slot.scm (1.8), sos/sos.pkg (1.12),
	star-parser/Makefile.in (1.3), star-parser/compile.scm (1.6),
	star-parser/ed-ffi.scm (1.6), star-parser/load.scm (1.13),
	star-parser/matcher.scm (1.30), star-parser/parser.pkg (1.19),
	star-parser/parser.scm (1.33), star-parser/shared.scm (1.24),
	star-parser/test-parser.scm (1.4), swat/scheme/swat.sf (1.5),
	wabbit/load.scm (1.4), wabbit/wabbit.cbf (1.3), wabbit/wabbit.pkg
	(1.3), wabbit/wabbit.scm (1.3), wabbit/wabbit.sf (1.5),
	win32/clipbrd.scm (1.6), win32/dib.scm (1.6), win32/ffimacro.scm
	(1.9), win32/graphics.scm (1.18), win32/make.scm (1.12),
	win32/module.scm (1.5), win32/protect.scm (1.4), win32/wf_user.scm
	(1.11), win32/win32.cbf (1.4), win32/win32.pkg (1.16),
	win32/win32.sf (1.10), win32/win_ffi.scm (1.10), win32/wingdi.scm
	(1.4), win32/winnt.scm (1.4), win32/winuser.scm (1.4),
	win32/wt_user.scm (1.7), win32/dibutils/dibutils.c (1.5),
	win32/dibutils/dibutils.def (1.4), win32/dibutils/dibutils.h (1.5),
	win32/dibutils/makefile.msc (1.5), win32/dibutils/makefile.wcc
	(1.5), xml/Makefile.in (1.3), xml/compile.scm (1.9), xml/ed-ffi.scm
	(1.5), xml/load.scm (1.6), xml/parser-macro.scm (1.5),
	xml/test-parser.scm (1.6), xml/xml-chars.scm (1.2),
	xml/xml-output.scm (1.2), xml/xml-parser.scm (1.12),
	xml/xml-struct.scm (1.6), xml/xml.pkg (1.10): Update license text
	to GNU standard.

2002-11-20 13:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.37.2.1): Beginning of rewriting the parser
	to cross-compile to a system in which the empty list is true.

2002-11-20 10:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/tterm.c (1.14): Load <termios.h> prior to <curses.h> as
	it is needed on solaris.

2002-11-19 11:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.22): Use statfs only on linux and hp-ux
	systems.

2002-11-12 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/usermap (1.1): Add usermap for use with cvs2cl.

2002-10-26 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.110), dosfile.scm (1.38): Add default modes
	for .inc and .xml files.

2002-10-22 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.185): Update version to reflect recent
	changes.

2002-10-22 22:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.108): Rewrite loop in
	Prim_microcode_library_path to work around bug in IBM C compiler
	3.6.5.

2002-10-21 22:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2env.c (1.13), os2utl/config.h (1.4), os2env.c
	(1.14): Fix problem with newer version of IBM C compiler.

2002-10-21 11:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.67): Add code to catch and ignore errors
	when loading uncompressed debugging information files.

2002-10-06 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.18): Add optional LINE-TRANSLATION argument
	to TCP-SERVER-CONNECTION-ACCEPT.

2002-09-30 22:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lspcom.scm (1.160): Fix bug: callers of
	CURRENT-DEFINITION-START assume that the returned value is always a
	mark, but if there was no definition, it was returning #F.  (Thanks
	to Michael Vanier's TA.)

2002-09-06 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.61): Don't initial M-x shell-command prompt
	history to most recent input.  Instead make it blank and let the
	user use M-p.

2002-09-05 11:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.96): Fix typo -- can't put parentheses
	around compound statement.

2002-08-20 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: configure.in (11.17), ux.c (1.21), cmpauxmd/i386.m4
	(1.59): Add support for running under valgrind.

2002-08-16 12:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* COPYING (1.3): Update exception statement to use FSF's wording.

2002-08-13 22:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sort.scm (1.8): Fix bug in field-sorting commands: if there
	was no linear whitespace on the line, it failed to correctly detect
	the end of the field.

2002-08-12 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debian-changelog.scm (1.6): Fix bug: must not signal error
	if only one entry in changelog and no "local variables:" at end.

2002-07-08 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcfinal.scm (14.3): Fix two bugs:  (1) Remove an item
	from the finalizer prior to running its finalization procedure. 
	(2) In REMOVE-ALL-FROM-GC-FINALIZER!, don't run the finalization
	procedure if the key object has been dropped.

2002-07-03 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: interp.h (9.48), interp.c (9.95), extern.h (9.62):
	Stylistic updates.

2002-07-02 22:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.h (9.47): Stylistic updates.

2002-07-02 22:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.98), intercom.c (9.33), liarc.h (1.19),
	nttrap.c (1.23), os2xcpt.c (1.13), osscheme.c (1.12), prim.h
	(9.47), prims.h (9.50), prmcon.c (1.5), utils.c (9.83), uxtrap.c
	(1.35): Eliminate `Regs' macro.

2002-07-02 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpintmd/hppa.h (1.52), cmpauxmd/c.c (1.13):
	Eliminate the following macros:
	
		Env
		Val
		Expression
		Return
		Fetch_Expression
		Fetch_Env
		Fetch_Return
		Store_Expression
		Store_Env

2002-07-02 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.101), bchpur.c (9.72), bkpt.c (9.32),
	bkpt.h (9.34), boot.c (9.107), cmpint.c (1.97), cmpint.h (10.9),
	debug.c (9.55), dmpwrld.c (9.41), fasload.c (9.94), fhooks.c
	(9.35), futures.h (9.30), history.h (9.31), hooks.c (9.63),
	intercom.c (9.32), interp.c (9.94), interp.h (9.46), liarc.h
	(1.18), memmag.c (9.69), nttrap.c (1.22), os2xcpt.c (1.12), prims.h
	(9.49), prmcon.c (1.4), purify.c (9.63), returns.h (9.43), stack.h
	(9.42), step.c (9.36), term.c (1.16), utils.c (9.82), uxtrap.c
	(1.34): Eliminate the following macros:
	
		Env
		Val
		Expression
		Return
		Fetch_Expression
		Fetch_Env
		Fetch_Return
		Store_Expression
		Store_Env

2002-07-02 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.100), bchpur.c (9.71), fasload.c (9.93),
	history.h (9.30), hooks.c (9.62), interp.h (9.45), memmag.c (9.68),
	nttrap.c (1.21), os2xcpt.c (1.11), purify.c (9.62), stack.h (9.41),
	utils.c (9.81), uxtrap.c (1.33): Eliminate references to `History'.

2002-07-02 14:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.99), bkpt.c (9.31), boot.c (9.106),
	cmpint.c (1.96), cmpint.h (10.8), debug.c (9.54), default.h (9.45),
	fasload.c (9.92), hooks.c (9.61), interp.h (9.44), liarc.h (1.17),
	memmag.c (9.67), nttrap.c (1.20), os2xcpt.c (1.10), sdata.h (9.40),
	stack.h (9.40), step.c (9.35), sysprim.c (9.48), utils.c (9.80),
	uxtrap.c (1.32), xdebug.c (9.35): Eliminate references to
	Stack_Pointer.

2002-07-02 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/alpha.m4 (1.2), cmpauxmd/hppa.m4 (1.40),
	cmpauxmd/i386.m4 (1.58), cmpauxmd/mc68k.m4 (1.28), cmpauxmd/mips.m4
	(1.16), cmpauxmd/sun3.s (1.4), cmpauxmd/sun3-gcc.s (1.3),
	cmpauxmd/sun3-nfp.s (1.4), cmpauxmd/vax.m4 (1.5), cmpintmd/alpha.h
	(1.7), bkpt.h (9.33), extern.h (9.61), interp.c (9.93), interp.h
	(9.43), liarc.h (1.16), stack.h (9.39), storage.c (9.58): Eliminate
	"import" and "export" of registers.  The marginal extra performance
	associated by this isn't worth the extra complexity in the code.

2002-06-28 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.61): Give LOAD-LIBRARY-OBJECT-FILE an
	optional argument NOISY? that controls whether the loading message
	is displayed.  By default, the message isn't displayed (as opposed
	to previous behavior).

2002-06-28 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/crypto.scm (14.14): Restucture MD5- procedures to force
	loading of non-mhash MD5 support if needed.

2002-06-28 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.158), make.scm (3.115): Require MD5
	availability to support encryption.

2002-06-25 23:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.209), win32/make.scm (1.11): Update
	version for post-7.7.1 changes.

2002-06-25 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/graphics.scm (1.17): Add operation to test for open
	graphics descriptor.

2002-06-25 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.8): Changes to support some basic SRFI
	features; specifically, SRFIs 0, 8, 9, 23, and 30.

2002-06-25 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.52), runtime.pkg (14.414), os2graph.scm
	(1.19): Add operation to test for open graphics descriptor.

2002-06-20 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.7): Fix pagination.

2002-06-17 20:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* COPYING (1.2): Add exemption permitting use with OpenSSL.

2002-06-17 12:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.208): Update version for 7.7.1 release.

2002-06-17 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntsock.c (1.13), ntapi.h (1.13), version.h (11.184):
	Implement server_channel_n_read, which is required by the runtime
	system to use server sockets.

2002-06-15 19:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.47): Initialize "length" field of
	structure prior to call.  Thanks to Lawrence Wood for the bug fix.

2002-06-04 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.48): Fix bug: expunge could generate
	errors due to mistaken overwriting of the summary-buffer mark for a
	deleted message.

2002-04-24 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.57), runtime.pkg (14.413): Use lambda
	abstraction rather than bypassing it.

2002-04-24 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/lambda.scm (14.17): Implement LAMBDA-NAMES-VECTOR.

2002-04-23 09:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntsock.c (1.12): Add missing call to transaction_begin.

2002-04-17 11:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.6): Don't reserve names in top-level
	environments.  The revised report requires that top-level
	definitions act like assignments when the name is already bound.

2002-04-16 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (14.10): Fix history procedures to
	specially handle null history.	This occasionally comes up with
	syntactic keywords.

2002-03-29 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.90.4.1), bchgcl.c (9.54.4.1), bchmmg.c
	(9.98.8.1), boot.c (9.105.8.1), confshared.h (11.3.2.1), const.h
	(9.46.8.1), debug.c (9.53.8.1), fasl.h (9.38.12.1), fasload.c
	(9.91.4.1), gccode.h (9.58.8.1), gctype.c (9.34.12.1), interp.c
	(9.92.8.1), lookup.h (9.55.8.1), memmag.c (9.66.8.1), ppband.c
	(9.50.8.1), purify.c (9.61.4.1), types.h (9.38.8.1), wabbit.c
	(1.9.4.1): Eliminate references to TC_NULL in favor of TC_FALSE. 
	Add symbolic definitions for datum values of TC_CONSTANT.

2002-03-25 22:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.138): If EOF encountered while reading server
	response, signal an error.  This prevents the uninterruptible
	infinite loop when the network goes down while the connection is
	open.

2002-03-25 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.45): If EOF encountered while reading
	server response, signal an error.  This prevents the
	uninterruptible infinite loop when the network goes down while the
	connection is open.

2002-03-25 11:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.96), imail-file.scm (1.81), imail-rmail.scm
	(1.70), imail-top.scm (1.283), imail-umail.scm (1.51), load.scm
	(1.39), todo.txt (1.137): Change M-o command to act like o if the
	output file is in a known format.

2002-03-19 12:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.30): Tweak comment.

2002-03-14 23:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (11.16): Broaden pattern used to match
	FreeBSD versions.

2002-03-14 20:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/toplev.scm (1.18): Fix missed reference in last change.

2002-03-13 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: toplev.scm (1.17), redpkg.scm (1.26): Allow end user to
	specify operating-system type, in order to do cross compilation.

2002-03-13 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.40): Change PACKAGE-SET-PATHNAME to accept
	an optional argument that specifies the operating-system type. 
	This is useful for cross-compilation.

2002-03-12 15:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.207): Update version number for release.

2002-03-11 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.57): Use pushad/popad rather than
	pusha/popa.  Latter don't work properly on Windows, and former
	aren't implemented by GCC.

2002-03-06 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.187): Change the following to allow their
	BUFFER argument to be any object accepted by ->BUFFER:
	
		DEFINE-VARIABLE-LOCAL-VALUE!
		UNDEFINE-VARIABLE-LOCAL-VALUE!
		VARIABLE-LOCAL-VALUE?
		SET-VARIABLE-LOCAL-VALUE!

2002-03-06 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.53), edwin.pkg (1.281), kilcom.scm (1.72),
	os2.scm (1.51), xterm.scm (1.69): Rewrite mechanism that controls
	whether PRIMARY or CLIPBOARD selection is used on X.  Now cut and
	paste are separately configurable, and the defaults are different
	for each.  This should provide better behavior on older systems
	while making the default more usable on newer ones.

2002-03-01 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (14.5): Don't output bare block
	declarations at top level; always wrap them in an open block. 
	Otherwise, SF won't act on the declarations, just passing them
	through to the compiler.

2002-03-01 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/compile.scm (1.4): The "star-parser" directory must be
	compiled prior to the "imail" directory.

2002-03-01 12:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax-output.scm (14.4), syntactic-closures.scm
	(14.9): Fix up various problems in the name management.  This now
	appears to work properly.

2002-03-01 12:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: scomb.scm (14.20), runtime.pkg (14.412): Add procedures
	to get a list of subexpressions of an scode combinator.

2002-03-01 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntactic-closures.scm (14.8), syntax-output.scm
	(14.3): Rewrite renaming code to allocate temporary uninterned
	symbols during expansion, then map them to interned symbols in a
	post pass.  Mapping algorithm avoids renaming where possible,
	keeping original names of identifiers in outermost frames in cases
	of conflict.

2002-02-28 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.86), option.scm (14.41), optiondb.scm
	(1.14), runtime.pkg (14.411): Hash-table abstraction is now always
	loaded.  It's no longer necessary to use LOAD-OPTION prior to use.

2002-02-28 22:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (14.5), syntax-output.scm (14.2):
	Rewrite the declaration processor to make it reusable for alpha
	substitution.

2002-02-25 13:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.157): Fix another problem with NAME->VARIABLE
	being passed a string.

2002-02-22 11:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.282): Show MIME message/delivery-status
	parts inline.  Simplify the MIME inline/outline decision logic.

2002-02-22 10:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.281): Add alternate Unicode charsets from
	RFC-1641.

2002-02-22 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/rulfix.scm (1.8): Eliminate non-hygienic
	macros.

2002-02-22 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/: lapgen.scm (4.18), rules3.scm (4.14):
	Eliminate non-hygienic macros.

2002-02-22 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/: assmd.scm (4.9), dassm1.scm (4.9),
	dassm2.scm (4.15): Eliminate non-hygienic macros.

2002-02-21 23:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: rulfix.scm (4.50), rulflo.scm
	(4.42): Eliminate non-hygienic macros.

2002-02-21 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.44): Eliminate
	non-hygienic macros.

2002-02-21 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: instr3.scm (1.5), lapgen.scm (4.50):
	Eliminate non-hygienic macros.

2002-02-21 23:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/instr1.scm (1.6): Eliminate
	non-hygienic macros.

2002-02-21 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: assmd.scm (1.33), dassm1.scm (4.22),
	dassm2.scm (4.23): Eliminate non-hygienic macros.

2002-02-21 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/sparc/rulflo.scm (1.4): Eliminate non-hygienic
	macros.

2002-02-21 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/sparc/: lapgen.scm (1.5), rules3.scm (1.4):
	Eliminate non-hygienic macros.

2002-02-21 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/sparc/: instr2a.scm (1.4), instr2b.scm (1.4),
	instr3.scm (1.4): Eliminate non-hygienic macros.

2002-02-21 23:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: mips/rulflo.scm (1.10), sparc/assmd.scm
	(1.4), sparc/instr1.scm (1.4): Eliminate non-hygienic macros.

2002-02-21 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: mips.scm (1.4), rules3.scm (1.20):
	Eliminate non-hygienic macros.

2002-02-21 22:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: instr2b.scm (1.6), instr3.scm (1.5),
	lapgen.scm (1.18): Eliminate non-hygienic macros.

2002-02-21 22:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: instr1.scm (1.9), instr2a.scm (1.7):
	Eliminate non-hygienic macros.

2002-02-21 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/rules3.scm (4.43), mips/assmd.scm
	(1.5), mips/dassm1.scm (1.7), mips/dassm2.scm (1.7): Eliminate
	non-hygienic macros.

2002-02-21 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: lapgen.scm (4.53), machin.scm (4.34):
	Eliminate non-hygienic macros.

2002-02-21 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: instr3.scm (1.20), instr4.scm (1.6):
	Eliminate non-hygienic macros.

2002-02-21 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr2.scm (1.21): Eliminate
	non-hygienic macros.

2002-02-21 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm2.scm (4.25), flinstr1.scm (1.4),
	flinstr2.scm (1.4): Eliminate non-hygienic macros.

2002-02-21 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: alpha/rulflo.scm (1.6), bobcat/assmd.scm
	(1.39), bobcat/dassm1.scm (4.22): Eliminate non-hygienic macros.

2002-02-21 22:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/alpha/: lapgen.scm (1.9), rules3.scm (1.10):
	Eliminate non-hygienic macros.

2002-02-21 22:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/alpha/: instr2.scm (1.4), instr3.scm (1.4):
	Eliminate non-hygienic macros.

2002-02-21 21:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/alpha/instr1.scm (1.6): Eliminate non-hygienic
	macros.

2002-02-21 20:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (14.7): If a synthetic identifier
	is bound at top level, rename it to a special name so that it
	doesn't conflict with other non-EQ? identifiers.

2002-02-21 20:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.121), runtime/parser-buffer.scm (1.4),
	sf/object.scm (4.15): Don't close the identifier of a definition.

2002-02-21 13:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.137): Fix FIND-DIR-NODE-FILES, which was
	returning the pathname list in reverse order.

2002-02-21 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.123): Update copyright statement.

2002-02-19 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntactic-closures.scm (14.5), syntactic-closures.scm
	(14.6): In STRIP-SYNTACTIC-CLOSURES, don't copy the argument unless
	it has embedded syntactic closures.

2002-02-19 14:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.4): Fix typo in previous change.

2002-02-19 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.3): Fix some missing syntax: FLUID-LET
	must allow (access ...) as LHS in binding.  Named LET must allow
	unassigned bindings.  RHS of syntax binding must allow arbitrary
	procedure-valued expression, which is treated as a non-hygienic
	macro expander.

2002-02-19 07:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.280): Add "unknown-8bit" to list of known
	character sets.

2002-02-16 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/alpha/: dassm1.scm (1.4), dassm2.scm (1.4):
	Eliminate non-hygienic macros.

2002-02-16 01:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: C/rulfix.scm (1.5), C/rulflo.scm (1.7),
	alpha/assmd.scm (1.4): Eliminate non-hygienic macros.

2002-02-16 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/C/: lapgen.scm (1.14), rules3.scm (1.11):
	Eliminate non-hygienic macros.

2002-02-15 22:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/dsyn.scm (1.12): Eliminate non-hygienic
	macros.

2002-02-15 22:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: vax/instr2.scm (1.11), vax/instr1.scm (1.10),
	vax/insmac.scm (1.17), spectrum/instr2.scm (1.11): Eliminate
	non-hygienic macros.

2002-02-15 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/: instr3.scm (1.14), instr2.scm (1.10):
	Eliminate non-hygienic macros.

2002-02-14 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.17), back/syntax.scm (1.29),
	machines/alpha/insmac.scm (1.6), machines/bobcat/insmac.scm
	(1.132), machines/i386/insmac.scm (1.17), machines/mips/insmac.scm
	(1.6), machines/sparc/insmac.scm (1.5),
	machines/spectrum/insmac.scm (1.6), machines/vax/insmac.scm (1.16):
	Change most instruction-set macros to use reverse syntactic closure
	style, and propagate changes down through the maze of supporting
	procedures.

2002-02-14 10:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.16), base/pmpars.scm (1.7),
	base/macros.scm (4.28), machines/i386/insmac.scm (1.16),
	machines/bobcat/insmac.scm (1.131): Make sure that all expressions
	are properly closed.

2002-02-14 00:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.122): Fix bug: name->foo procedures no longer
	accept string arguments.

2002-02-13 20:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/asmmac.scm (1.15): Make sure that all expressions
	are properly closed.

2002-02-13 13:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/insmac.scm (1.15): Make sure that all
	expressions are properly closed.

2002-02-13 13:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/insmac.scm (1.130): Eliminate
	non-hygienic macros.

2002-02-13 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/alpha/insmac.scm (1.5): Eliminate non-hygienic
	macros.

2002-02-12 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/clsmac.scm (1.10): Fix bug: WITH-INSTANCE-VARIABLES should
	have used MAKE-UNMAPPED-MACRO-REFERENCE-TRAP rather than
	MAKE-MACRO-REFERENCE-TRAP.

2002-02-12 20:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/xeval.scm (1.10): Rename MAKE-NULL-TOP-LEVEL-ENVIRONMENT
	to MAKE-ROOT-TOP-LEVEL-ENVIRONMENT.  Eliminate alias for
	EXTEND-INTERPRETER-ENVIRONMENT.

2002-02-12 20:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (14.2): Modify CASE syntactic keyword to
	generate better code for tests.

2002-02-12 20:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.56), runtime/runtime.pkg (14.410),
	runtime/option.scm (14.40), imail/fake-env.scm (1.6),
	compiler/etc/disload.scm (1.12), edwin/intmod.scm (1.116),
	swat/scheme/load.scm (1.9): Rename MAKE-NULL-TOP-LEVEL-ENVIRONMENT
	to MAKE-ROOT-TOP-LEVEL-ENVIRONMENT.  Eliminate alias for
	EXTEND-INTERPRETER-ENVIRONMENT.

2002-02-12 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.55), syntactic-closures.scm (14.4):
	Don't signal error from ENVIRONMENT-LOOKUP-MACRO if name is
	unbound.

2002-02-12 10:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.54), runtime.pkg (14.409): Add aliases:
	
	interpreter-environment?	  => top-level-environment?
	extend-interpreter-environment	  => extend-top-level-environment
	make-null-interpreter-environment =>
	make-null-top-level-environment

2002-02-12 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/: instr1.scm (1.16), instr2.scm (1.10),
	instrf.scm (1.18), lapgen.scm (1.31), rules3.scm (1.38), rulfix.scm
	(1.34), rulflo.scm (1.25): Eliminate non-hygienic macros.

2002-02-11 19:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/ffimacro.scm (1.8): Don't close the identifier of a
	definition.

2002-02-11 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntactic-closures.scm (14.3), make.scm (14.85),
	runtime.pkg (14.408): Implement REVERSE-SYNTACTIC-ENVIRONMENTS. 
	Add bindings for SYSTEM-GLOBAL-SYNTAX-TABLE and
	EXTEND-IC-ENVIRONMENT to ease upgrading.

2002-02-11 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/pmpars.scm (1.6): Eliminate non-hygienic macros.

2002-02-11 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.14), base/macros.scm (4.27),
	base/pmpars.scm (1.5), machines/i386/assmd.scm (1.6),
	machines/i386/dassm1.scm (1.13), machines/i386/dassm2.scm (1.12),
	machines/i386/dassm3.scm (1.10), machines/i386/insmac.scm (1.14):
	Eliminate non-hygienic macros.

2002-02-10 01:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: sysmac.scm (14.10), defstr.scm (14.40): Don't close the
	identifier of a definition.

2002-02-09 01:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/object.scm (4.14): Don't close the identifier of a definition.

2002-02-09 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.50), graphics.scm (1.21), infstr.scm
	(1.15), parse.scm (14.37), port.scm (1.23), rgxcmp.scm (1.120),
	starbase.scm (1.17), sysmac.scm (14.9), vector.scm (14.21): Don't
	close the identifier of a definition.

2002-02-09 00:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.186), edwin/calias.scm (1.25),
	edwin/dosproc.scm (1.9), edwin/macros.scm (1.72), edwin/search.scm
	(1.155), edwin/tterm.scm (1.34), edwin/xcom.scm (1.21),
	6001/arith.scm (1.10): Don't close the identifier of a definition.

2002-02-09 00:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (4.24), sos/macros.scm (1.14),
	compiler/base/macros.scm (4.26): Use CLOSE-SYNTAX where possible.

2002-02-09 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/clsmac.scm (1.9), runtime/defstr.scm (14.39): Use
	CLOSE-SYNTAX where possible.

2002-02-08 12:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (14.2): Change renaming algorithm
	to treat synthetic identifiers differently from symbols.  The new
	algorithm implements an EQ?-isomorphic map between identifiers and
	renamed symbols.

2002-02-07 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.13), fggen/canon.scm (1.22),
	fggen/fggen.scm (4.37), base/macros.scm (4.25): Eliminate
	non-hygienic macros.

2002-02-07 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg1.scm (4.7): Eliminate instances of FALSE.

2002-02-07 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: C/compiler.pkg (1.14), alpha/compiler.pkg
	(1.17), bobcat/compiler.pkg (1.54), mips/compiler.pkg (1.24),
	spectrum/compiler.pkg (1.54), vax/compiler.pkg (1.26): Add missing
	macro imports.

2002-02-07 22:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.pkg (1.53),
	vax/compiler.pkg (1.25): Eliminate non-hygienic macros.

2002-02-07 22:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: i386/compiler.pkg (1.29), C/compiler.pkg
	(1.13), alpha/compiler.pkg (1.16), bobcat/compiler.pkg (1.53),
	mips/compiler.pkg (1.23): Eliminate non-hygienic macros.

2002-02-07 22:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.12), base/cfg1.scm (4.6),
	base/macros.scm (4.24), base/scode.scm (4.14), base/utils.scm
	(4.24), etc/comcmp.scm (1.11), fggen/canon.scm (1.21),
	fggen/fggen.scm (4.36), rtlbase/rtlcfg.scm (4.10),
	rtlbase/rtlreg.scm (4.9), rtlbase/valclass.scm (1.5): Eliminate
	non-hygienic macros.

2002-02-07 22:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-check.scm (14.2): Fix error message in
	PARSE-MIT-LAMBDA-LIST.

2002-02-07 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.11), back/lapgn3.scm (4.15),
	base/crsend.scm (1.13), base/lvalue.scm (4.25): Eliminate
	non-hygienic macros.

2002-02-05 12:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.84): Fix bug: top-level syntax definition
	was being loaded into global environment.

2002-02-04 01:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/ffimacro.scm (1.7): Fix fatal bug in previous revision.

2002-02-02 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/load.scm (1.11), win32/make.scm (1.10), xml/load.scm (1.5):
	Update version to reflect changes for new syntax engine.

2002-02-02 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.34), cref/make.scm (1.25), imail/load.scm
	(1.38): Update version to reflect changes for new syntax engine.

2002-02-02 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.117), edwin/make.scm (3.114): Update
	version to reflect changes for new syntax engine.

2002-02-02 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/arith.scm (1.9), compiler/base/constr.scm (1.4),
	compiler/base/macros.scm (4.23),
	compiler/machines/i386/compiler.pkg (1.28), edwin/buffer.scm
	(1.185), edwin/buffrm.scm (1.59), edwin/bufwin.scm (1.310),
	edwin/calias.scm (1.24), edwin/clscon.scm (1.8), edwin/clsmac.scm
	(1.8), edwin/comman.scm (1.86), edwin/comwin.scm (1.147),
	edwin/dosproc.scm (1.8), edwin/edtfrm.scm (1.91), edwin/edwin.pkg
	(1.280), edwin/macros.scm (1.71), edwin/modes.scm (1.35),
	edwin/modwin.scm (1.42), edwin/regexp.scm (1.78), edwin/schmod.scm
	(1.59), edwin/search.scm (1.154), edwin/syntax.scm (1.89),
	edwin/tterm.scm (1.33), edwin/utils.scm (1.51), edwin/utlwin.scm
	(1.60), edwin/window.scm (1.160), edwin/xcom.scm (1.20),
	edwin/xform.scm (1.12), microcode/os2pm.scm (1.11),
	microcode/utabmd.scm (9.83), microcode/cmpintmd/i386.h (1.35),
	runtime/apply.scm (1.5), runtime/arith.scm (1.49),
	runtime/debug.scm (14.43), runtime/defstr.scm (14.38),
	runtime/ed-ffi.scm (1.32), runtime/error.scm (14.57),
	runtime/graphics.scm (1.20), runtime/illdef.scm (1.6),
	runtime/infstr.scm (1.14), runtime/list.scm (14.30),
	runtime/macros.scm (1.7), runtime/make.scm (14.84),
	runtime/mit-syntax.scm (14.1), runtime/os2winp.scm (1.18),
	runtime/parse.scm (14.36), runtime/parser-buffer.scm (1.3),
	runtime/port.scm (1.22), runtime/recslot.scm (1.7),
	runtime/rgxcmp.scm (1.119), runtime/runtime.pkg (14.407),
	runtime/scomb.scm (14.19), runtime/starbase.scm (1.16),
	runtime/string.scm (14.47), runtime/syntab.scm (14.10),
	runtime/syntactic-closures.scm (14.1), runtime/syntax-check.scm
	(14.1), runtime/syntax-output.scm (14.1), runtime/syntax-rules.scm
	(14.1), runtime/syntax-transforms.scm (14.1), runtime/syntax.scm
	(14.53), runtime/sysmac.scm (14.8), runtime/unsyn.scm (14.28),
	runtime/vector.scm (14.20), runtime/version.scm (14.206),
	sf/make.scm (4.41), sf/object.scm (4.13), sf/sf.pkg (4.17),
	sf/toplev.scm (4.23), sos/class.scm (1.12), sos/instance.scm
	(1.14), sos/macros.scm (1.13), star-parser/compile.scm (1.5),
	star-parser/load.scm (1.12), star-parser/matcher.scm (1.29),
	star-parser/parser.pkg (1.18), star-parser/parser.scm (1.32),
	star-parser/shared.scm (1.23), star-parser/synchk.scm (1.2),
	swat/scheme/control-floating-errors.scm (1.4), swat/scheme/load.scm
	(1.8), swat/scheme/mit-xhooks.scm (1.5), swat/scheme/scc-macros.scm
	(1.4), wabbit/test-wabbit.scm (1.4), win32/ffimacro.scm (1.6),
	win32/win32.sf (1.9), win32/win_ffi.scm (1.9): Merge
	hygienic-macros branch into trunk.

2002-02-01 22:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/scheme/: load.scm (1.7.2.1), scc-macros.scm (1.3.2.1):
	Eliminate non-hygienic macros.

2002-02-01 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/scheme/: control-floating-errors.scm (1.3.2.1),
	mit-xhooks.scm (1.4.2.1): Eliminate non-hygienic macros.

2002-02-01 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/macros.scm (1.70.2.1), wabbit/test-wabbit.scm (1.3.2.1):
	Eliminate non-hygienic macros.

2002-02-01 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.279.2.2): Eliminate CANONICALIZE-NAME.

2002-02-01 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.85.6.3): Extend MAKE-VARIABLE to accept
	arguments that initialize the remaining record fields.

2002-02-01 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.85.6.2): Extend MAKE-VARIABLE to accept
	arguments that initialize the remaining record fields.

2002-02-01 20:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comman.scm (1.85.6.1), modes.scm (1.34.6.1): Eliminate
	CANONICALIZE-NAME.

2002-02-01 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: tterm.scm (1.32.2.1), utils.scm (1.50.2.1), xcom.scm
	(1.19.2.1): Eliminate non-hygienic macros.

2002-02-01 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: search.scm (1.153.2.1), syntax.scm (1.88.2.1): Eliminate
	non-hygienic macros.

2002-02-01 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.77.2.1): Eliminate non-hygienic macros.

2002-02-01 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.184.2.1), calias.scm (1.23.2.1),
	dosproc.scm (1.7.2.1): Eliminate non-hygienic macros.

2002-02-01 14:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/: win_ffi.scm (1.8.2.1), ffimacro.scm (1.5.2.1): Eliminate
	non-hygienic macros.

2002-02-01 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (4.22.2.2), sf/sf.pkg (4.16.2.2), win32/win32.sf
	(1.8.2.1): Rip out remaining pathname-map stuff.  It's nearly
	impossible to make this work right.

2002-02-01 12:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/arith.scm (1.8.2.1), microcode/os2pm.scm (1.10.2.1),
	microcode/utabmd.scm (9.82.2.1): Eliminate non-hygienic macros.

2002-02-01 00:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/object.scm (4.12.2.1): Eliminate non-hygienic macros.

2002-02-01 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: sysmac.scm (14.7.2.1), vector.scm (14.19.2.1):
	Eliminate non-hygienic macros.

2002-02-01 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: scomb.scm (14.18.2.1), starbase.scm (1.15.2.1),
	string.scm (14.46.2.1): Eliminate non-hygienic macros.

2002-01-31 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: recslot.scm (1.6.2.1), rgxcmp.scm (1.118.2.1):
	Eliminate non-hygienic macros.

2002-01-31 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: parser-buffer.scm (1.2.2.1), port.scm (1.21.2.1):
	Eliminate non-hygienic macros.

2002-01-31 23:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.35.2.1): Eliminate non-hygienic macros.

2002-01-31 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2winp.scm (1.17.2.1): Eliminate non-hygienic macros.

2002-01-31 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: list.scm (14.29.2.1), make.scm (14.83.2.5): Eliminate
	non-hygienic macros.

2002-01-31 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: graphics.scm (1.19.2.1), infstr.scm (1.13.2.1):
	Eliminate non-hygienic macros.

2002-01-31 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: debug.scm (14.42.2.1), error.scm (14.56.2.1): Eliminate
	non-hygienic macros.

2002-01-31 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/apply.scm (1.4.2.1): Eliminate non-hygienic macros.

2002-01-31 22:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.48.2.1): Eliminate non-hygienic macros.

2002-01-31 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.12.2.2): Fix thinko with reversed arguments to
	IDENTIFIER=?.

2002-01-31 00:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (1.1.2.8): Add back optimization that
	renames LAMBDA expressions bound by top-level definitions.

2002-01-31 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: compile.scm (1.4.6.1), load.scm (1.11.6.1),
	matcher.scm (1.28.2.1), parser.pkg (1.17.2.1), parser.scm
	(1.31.2.1), shared.scm (1.22.2.1), synchk.scm (1.1.6.1): Update for
	new syntax engine.

2002-01-31 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (1.1.2.7): Add back optimization that
	renames LAMBDA expressions bound by top-level definitions.

2002-01-29 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: utabmd.sh (1.2), utabmd.sh (1.1.2.2): Use
	SCHEME_COMPILER variable to allow end-user override.

2002-01-29 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: utabmd.sh (1.1), makegen/Makefile.in.in (1.20),
	makegen/Makefile.in.in (1.17.2.3), utabmd.sh (1.1.2.1): Use
	SCHEME_COMPILER variable to allow end-user override.

2002-01-29 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/: Makefile.in.in (1.19), Makefile.in.in
	(1.17.2.2): Use SCHEME_COMPILER variable to allow end-user
	override.

2002-01-29 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: configure.in (11.15), configure.in (11.13.2.2): In
	socklen_t test, must include <sys/types.h> also.

2002-01-29 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/confshared.h (11.1.2.2): Don't use <stdbool.h>; it is
	incompatible with older versions of ncurses.

2002-01-29 01:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: tterm.c (1.13), tterm.c (1.12.2.1): Undefine false
	and true prior to including <curses.h>, to work around bug in
	recent versions of ncurses.

2002-01-29 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/confshared.h (11.3): Don't use <stdbool.h>; it is
	incompatible with older versions of ncurses.

2002-01-29 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/compile.sh (1.2), Makefile.in (1.19): Add shell script with
	environment variable that can be used to override the default
	Scheme compiler.

2002-01-29 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: configure.in (11.13.2.1), confshared.h (11.1.2.1):
	Fix problem: don't define true and false if <stdbool.h> exists,
	because the GNU version of <stdbool.h> breaks in that case. 
	Instead just use <stdbool.h> to make the definitions.

2002-01-28 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: confshared.h (11.2), configure.in (11.14): Fix
	problem: don't define true and false if <stdbool.h> exists, because
	the GNU version of <stdbool.h> breaks in that case.  Instead just
	use <stdbool.h> to make the definitions.

2002-01-28 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.68): Add support for cut/paste to "clipboard",
	which seems to be new standard.

2002-01-28 20:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/compile.sh (1.1): file compile.sh was initially added on
	branch release-7-6.

2002-01-28 20:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/compile.sh (1.1.2.1), Makefile.in (1.18.2.1): Add shell
	script with environment variable that can be used to override the
	default Scheme compiler.

2002-01-28 15:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.205): Update release version to reflect
	that next release will be 7.7.0 rather than 7.6.1.

2002-01-27 01:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/dibutils/: makefile.wcc (1.4), makefile.msc (1.4),
	makefile.msc (1.3.2.1), makefile.wcc (1.3.2.1): Fix typo.

2002-01-26 23:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/optiondb.scm (1.8.2.1): Fix bug: package name for SOS was
	wrong.

2002-01-26 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.202.2.1): Update version number for
	release.

2002-01-26 08:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.37.2.5), runtime.pkg (14.406.2.9),
	syntactic-closures.scm (1.1.2.13): Rename
	GENERATE-SYNTHETIC-IDENTIFIER to MAKE-SYNTHETIC-IDENTIFIER.

2002-01-26 08:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (1.1.2.12): Don't elide syntactic
	closure when the form being closed is an identifier, because the
	closure might be a synthetic identifier.

2002-01-22 13:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: optiondb.scm (1.9), optiondb.scm (1.8.6.1): Fix bug:
	package name for SOS was wrong.

2002-01-22 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/: class.scm (1.11.2.1), instance.scm (1.13.2.1), macros.scm
	(1.12.2.1): Initial rewrite of macros to use syntactic closures. 
	Code compiles and a few simple expressions have been tested.

2002-01-22 12:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.406.2.8): Export PARSE-MIT-LAMBDA-LIST.

2002-01-22 12:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (1.1.2.11): Change
	MAKE-SYNTACTIC-CLOSURE to avoid closing more things.  This will
	reduce consing and simplify debugging of macros.

2002-01-22 11:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntactic-closures.scm (1.1.2.10), runtime.pkg
	(14.406.2.7): Delete unused definition of
	MAKE-SYNTACTIC-CLOSURE-LIST.  Add new procedure CLOSE-SYNTAX. 
	Change STRIP-SYNTACTIC-CLOSURES; it doesn't need to traverse
	vectors.

2002-01-22 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-check.scm (1.1.2.2): Allow arbitrary
	pattern-matching elements in SYNTAX-MATCH?.

2002-01-19 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.31.2.1): Change list to delete old files
	and add new ones.

2002-01-19 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (1.1.2.6): Enhance
	OUTPUT/TOP-LEVEL-SEQUENCE to avoid making open blocks for simple
	expressions.

2002-01-19 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (1.1.2.9): Simplify structure of
	top-level entry points to syntax engine.

2002-01-18 21:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.309.6.2): Fix bug: BUFFER-WINDOW/SET-BUFFER!
	must not call SET-NEW-COORDINATES! unless the window has a known
	size.

2002-01-18 20:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: clscon.scm (1.7.6.1), clscon.scm (1.7.6.2): Mak sure that
	structure-type names are in the numerical order.

2002-01-18 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.58.6.1), bufwin.scm (1.309.6.1), clsmac.scm
	(1.7.2.2), comwin.scm (1.146.6.1), edtfrm.scm (1.90.6.1), edwin.pkg
	(1.279.2.1), modwin.scm (1.41.6.1), utlwin.scm (1.59.6.1),
	window.scm (1.159.6.1), xform.scm (1.11.2.1): Implement
	WITH-INSTANCE-VARIABLES as a compiler item, using internal features
	of the syntax engine.  Rename => to ==> to avoid conflict with =>
	keyword used by COND; rename USUAL=> to USUAL==> for consistency.

2002-01-18 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.37.2.4): Fix thinko in NAMED option.

2002-01-18 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.406.2.6): Export ILL-FORMED-SYNTAX.

2002-01-18 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-rules.scm (1.1.2.2): Add declarations to prevent
	compiler warnings.

2002-01-18 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/clsmac.scm (1.7.2.1): Mostly rewrite this using new syntax.
	 But WITH-INSTANCE-VARIABLES not rewritten -- it is a terrible
	kludge and pretty hopeless.

2002-01-18 14:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.58.2.1): Add indentation rules for new
	syntax.

2002-01-18 12:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.406.2.5), syntactic-closures.scm
	(1.1.2.8), syntax-output.scm (1.1.2.5): Export
	CALL-WITH-SYNTAX-ERROR-PROCEDURE, and generalize the argument
	structure to the error procedure.

2002-01-18 12:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.406.2.4): Export SYNTAX-MATCH? for use in
	macros.

2002-01-18 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax-transforms.scm (1.1.2.2), syntactic-closures.scm
	(1.1.2.7), make.scm (14.83.2.4), mit-syntax.scm (1.1.2.11): Fix
	runtime code generated for top-level macro transformers.  These
	were being stored in the environment as procedures when they were
	supposed to be stored as expander items.

2002-01-18 00:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.22.2.3): Fix typo in DEFINE-EXPORT.

2002-01-17 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (1.1.2.10): Fix thinko in binding of
	syntactic keywords.

2002-01-17 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.27.2.1): Fix broken unsyntaxing of
	DEFINE-SYNTAX.

2002-01-17 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.22.2.2): Convert the PACKAGE macro to
	RSC format.

2002-01-17 22:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/constr.scm (1.3.6.1): Add USUAL-INTEGRATIONS
	declaration.

2002-01-17 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (1.1.2.9): Allow INTEGRATE-EXTERNAL
	declaration to take pathname objects as well as strings.

2002-01-17 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.37.2.3): Make sure that the ACCESS keyword
	is closed in the right environment.

2002-01-17 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-transforms.scm (1.1): file syntax-transforms.scm
	was initially added on branch hygienic-macros.

2002-01-17 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.83.2.3), mit-syntax.scm (1.1.2.8),
	runtime.pkg (14.406.2.3), syntax-transforms.scm (1.1.2.1): Move the
	TRANSFORMER->EXPANDER procedures into a separate file that is
	loaded early during the cold load.  These are needed by any
	top-level macro definitions in the runtime system.

2002-01-17 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.83.2.2): Eliminate use of CASE in cold load.
	 New syntaxer expands this into calls to MEMV, which isn't
	available.

2002-01-17 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (1.1.2.4): Rework the handling of
	definitions, LAMBDA bodies, and LETREC.  This now emits code using
	open blocks and internal definitions, because the compiler (and SF)
	expect it to be in that form.

2002-01-17 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (1.1.2.7), syntactic-closures.scm
	(1.1.2.6), syntax-output.scm (1.1.2.3): Rework the handling of
	definitions, LAMBDA bodies, and LETREC.  This now emits code using
	open blocks and internal definitions, because the compiler (and SF)
	expect it to be in that form.

2002-01-17 12:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (1.1.2.6), syntactic-closures.scm
	(1.1.2.5): Fix harmless typo.

2002-01-17 11:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (1.1.2.2): Fix thinko in generation of
	LETREC code.

2002-01-17 11:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (1.1.2.5), syntactic-closures.scm
	(1.1.2.4): Rework the handling of LET-SYNTAX and LETREC-SYNTAX so
	that definitions appearing in their bodies are defined in the
	enclosing definition environment rather than internally.

2002-01-16 20:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (1.1.2.4): Allow INTEGRATE-EXTERNAL
	declaration to specify multiple files.

2002-01-16 20:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntactic-closures.scm (1.1.2.3), mit-syntax.scm
	(1.1.2.3): Add delay to processing of declaration texts, so that
	they can contain forward references to definitions.

2002-01-16 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/macros.scm (4.22.2.1), machines/i386/compiler.pkg
	(1.27.2.1): Eliminate dependence of DEFINE-EXPORT on now-obsolete
	PARSE-DEFINE-SYNTAX.

2002-01-16 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mit-syntax.scm (1.1.2.2), runtime.pkg (14.406.2.2),
	syntactic-closures.scm (1.1.2.2): Rework handling of bodies to
	prevent premature reference to internal definitions.  Add
	bootstrapping kludge that converts old-style macro transformers
	into items on the fly.	Implement "reversed" syntactic-closure
	transformers.

2002-01-16 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.37.2.2): Fix bugs: Slot default wasn't
	being closed right; type-name and tag-expression were being
	reversed.

2002-01-15 15:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.34.2.1): Eliminate unneeded
	declaration of `ia32_cpuid_needed'.

2002-01-15 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: make.scm (4.40.2.1), sf.pkg (4.16.2.1), toplev.scm
	(4.22.2.1): Changes needed to support new syntax engine.

2002-01-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-rules.scm (1.1): file syntax-rules.scm was
	initially added on branch hygienic-macros.

2002-01-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntactic-closures.scm (1.1): file syntactic-closures.scm
	was initially added on branch hygienic-macros.

2002-01-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-check.scm (1.1): file syntax-check.scm was
	initially added on branch hygienic-macros.

2002-01-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax-output.scm (1.1): file syntax-output.scm was
	initially added on branch hygienic-macros.

2002-01-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mit-syntax.scm (1.1): file mit-syntax.scm was initially
	added on branch hygienic-macros.

2002-01-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.37.2.1), illdef.scm (1.5.2.1),
	macros.scm (1.6.2.1), make.scm (14.83.2.1), mit-syntax.scm
	(1.1.2.1), runtime.pkg (14.406.2.1), syntab.scm (14.9.2.1),
	syntactic-closures.scm (1.1.2.1), syntax-check.scm (1.1.2.1),
	syntax-output.scm (1.1.2.1), syntax-rules.scm (1.1.2.1), syntax.scm
	(14.52.2.1), version.scm (14.204.2.1): Initial integration of new
	syntax engine.	Complete rewrite of DEFINE-STRUCTURE expander.

2002-01-14 11:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.17.2.1): Fix default target;
	it wasn't including everything.

2002-01-14 11:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.50.6.1): Add explicit cache
	synchronization support to work around a bug in the Athlon.  Remove
	support for DOS and HACK_SEGMENT_REGS.

2002-01-14 11:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.115.2.1),
	compiler/machines/i386/dassm3.scm (1.6.2.1),
	compiler/machines/i386/instr1.scm (1.11.2.1),
	compiler/machines/i386/lapgen.scm (1.27.2.1),
	compiler/machines/i386/rules3.scm (1.34.2.1),
	microcode/cmpintmd/i386.h (1.32.2.1), microcode/version.h
	(11.181.2.1): Add explicit cache synchronization support to work
	around a bug in the Athlon.

2002-01-11 21:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.136): Add note about Hal's suggestion to
	overload o to subsume M-o.

2002-01-11 21:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.37), make.scm (14.83), record.scm
	(1.29), runtime.pkg (14.406): Move runtime support for
	DEFINE-STRUCTURE into "record.scm", in order to simplify the boot
	sequence.  This allows "defstr.scm" to move late into the boot
	sequence and to use the record abstraction without complicated
	tricks.

2002-01-09 00:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: toplev.scm (4.22), sf.pkg (4.16): Change remaining
	"syntax-table" references to "environment".  Delete unused
	procedure SF/SET-FILE-SYNTAX-TABLE!.

2002-01-08 00:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/urtrap.scm (14.13): Fix naming issue right (?).

2002-01-08 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/urtrap.scm (14.12): If reference trap has no name, print
	its number.

2002-01-07 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.53): Must do reference-trap mapping when
	looking things up in compiled-code environments.

2002-01-06 23:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.62): Don't ever list bindings for packages.

2002-01-06 23:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.61): Fix problem: only one of the places that
	prints bindings knew about syntactic keywords.

2002-01-06 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/urtrap.scm (14.11): Change representation of reference
	trap to show kind name rather than number.

2002-01-06 23:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.60): Use new environment-abstraction design to
	clean up debugger access to environments.

2002-01-06 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.56), runtime.pkg (14.405), uenvir.scm
	(14.52): Redesign way that macros are integrated into environments.
	 Syntactic keywords are now considered bound, but ordinary
	variable-reference operations signal errors on those bindings; but
	each of the definition operations can be used to modify either kind
	of binding.
	
	New procedure ENVIRONMENT-DEFINABLE? can be used to determine if a
	definition is allowed on a particular environment; currently it is
	false on compiled-code environments.
	
	New procedures ENVIRONMENT-REFERENCE-TYPE and
	ENVIRONMENT-SAFE-LOOKUP provide very flexible mechanisms for
	determining what is contained in an environment or binding without
	generating errors.

2002-01-05 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.21): Handle case where binding is a
	syntactic keyword.

2002-01-05 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: xeval.scm (1.8), xeval.scm (1.9): Rename
	ENVIRONMENT-WHICH-BINDS to ENVIRONMENT-THAT-BINDS.

2002-01-05 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.50): Don't unparse environments specially.

2002-01-04 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.404), uenvir.scm (14.51): New procedure
	GUARANTEE-ENVIRONMENT.

2001-12-28 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.52): Oops... last revision deleted a
	little too much.

2001-12-23 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.51): Eliminate deep-binding FLUID-LET.

2001-12-23 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/comcmp.scm (1.10), runtime/unsyn.scm (14.27),
	runtime/syntax.scm (14.50): Eliminate references to UNASSIGNED?.

2001-12-23 13:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookprm.c (1.19): Fix missing string line terminators.

2001-12-23 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookprm.c (1.18): Fix missing string line terminators.

2001-12-23 12:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/arith.scm (1.8), compiler/back/asmmac.scm (1.10),
	compiler/back/lapgn3.scm (4.14), compiler/base/crsend.scm (1.12),
	compiler/base/lvalue.scm (4.24), compiler/base/macros.scm (4.22),
	compiler/base/scode.scm (4.13), compiler/base/utils.scm (4.23),
	compiler/etc/comcmp.scm (1.9), compiler/fggen/canon.scm (1.20),
	compiler/fggen/fggen.scm (4.35), compiler/machines/alpha/inerly.scm
	(1.6), compiler/machines/alpha/insmac.scm (1.4),
	compiler/machines/bobcat/inerly.scm (1.11),
	compiler/machines/bobcat/insmac.scm (1.129),
	compiler/machines/i386/assmd.scm (1.5),
	compiler/machines/i386/dassm1.scm (1.12),
	compiler/machines/i386/dassm2.scm (1.11),
	compiler/machines/i386/dassm3.scm (1.9),
	compiler/machines/i386/inerly.scm (1.7),
	compiler/machines/i386/insmac.scm (1.13),
	compiler/machines/i386/instr1.scm (1.15),
	compiler/machines/i386/instr2.scm (1.9),
	compiler/machines/i386/instrf.scm (1.17),
	compiler/machines/i386/lapgen.scm (1.30),
	compiler/machines/i386/rules3.scm (1.37),
	compiler/machines/i386/rulfix.scm (1.33),
	compiler/machines/i386/rulflo.scm (1.24),
	compiler/machines/mips/inerly.scm (1.6),
	compiler/machines/mips/insmac.scm (1.5),
	compiler/machines/sparc/inerly.scm (1.6),
	compiler/machines/sparc/insmac.scm (1.4),
	compiler/machines/spectrum/inerly.scm (1.6),
	compiler/machines/spectrum/insmac.scm (1.5),
	compiler/machines/spectrum/instr2.scm (1.10),
	compiler/machines/vax/dsyn.scm (1.11),
	compiler/machines/vax/inerly.scm (1.10),
	compiler/machines/vax/insmac.scm (1.15),
	compiler/machines/vax/instr1.scm (1.9),
	compiler/machines/vax/instr2.scm (1.9),
	compiler/machines/vax/instr3.scm (1.13),
	compiler/rtlbase/rtlreg.scm (4.8), compiler/rtlbase/valclass.scm
	(1.4), edwin/buffer.scm (1.184), edwin/calias.scm (1.23),
	edwin/clsmac.scm (1.7), edwin/dosproc.scm (1.7), edwin/macros.scm
	(1.70), edwin/regexp.scm (1.77), edwin/search.scm (1.153),
	edwin/syntax.scm (1.88), edwin/tterm.scm (1.32), edwin/utils.scm
	(1.50), edwin/xcom.scm (1.19), microcode/os2pm.scm (1.10),
	microcode/utabmd.scm (9.82), runtime/apply.scm (1.4),
	runtime/arith.scm (1.48), runtime/debug.scm (14.42),
	runtime/defstr.scm (14.36), runtime/error.scm (14.55),
	runtime/graphics.scm (1.19), runtime/infstr.scm (1.13),
	runtime/list.scm (14.29), runtime/make.scm (14.82),
	runtime/os2winp.scm (1.17), runtime/parse.scm (14.35),
	runtime/parser-buffer.scm (1.2), runtime/port.scm (1.21),
	runtime/recslot.scm (1.6), runtime/rgxcmp.scm (1.118),
	runtime/runtime.pkg (14.403), runtime/scomb.scm (14.18),
	runtime/starbase.scm (1.15), runtime/string.scm (14.46),
	runtime/sysmac.scm (14.7), runtime/vector.scm (14.19),
	sf/object.scm (4.12), sos/class.scm (1.11), sos/instance.scm
	(1.13), sos/load.scm (1.10), sos/macros.scm (1.12), sos/sos.pkg
	(1.11), star-parser/matcher.scm (1.28), star-parser/parser.pkg
	(1.17), star-parser/parser.scm (1.31),
	swat/scheme/control-floating-errors.scm (1.3), swat/scheme/load.scm
	(1.7), swat/scheme/mit-xhooks.scm (1.4), swat/scheme/scc-macros.scm
	(1.3), swat/scheme/uitk-macros.scm (1.2), wabbit/test-wabbit.scm
	(1.3), win32/dib.scm (1.5), win32/ffimacro.scm (1.5),
	win32/make.scm (1.9), win32/win32.pkg (1.15), win32/win32.sf (1.8),
	win32/win_ffi.scm (1.8), win32/wingdi.scm (1.3), win32/winnt.scm
	(1.3), win32/winuser.scm (1.3), win32/wt_user.scm (1.6): Eliminate
	all references to SYNTAX-TABLE/DEFINE.	Wrap all macros with new
	procedure NON-HYGIENIC-MACRO-TRANSFORMER; this will serve as a
	marker for identifying macros that need to be rewritten.

2001-12-21 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.73), macros.scm (1.69): Store macro
	definitions in environments rather than in syntax tables.

2001-12-21 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/macros.scm (4.21), machines/i386/compiler.sf
	(1.18), machines/i386/compiler.pkg (1.27): Store macro definitions
	in environments rather than in syntax tables.

2001-12-21 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax.scm (14.49), unsyn.scm (14.26), urtrap.scm
	(14.10), runtime.pkg (14.402): Fix problem: DEFINE-SYNTAX was
	expanding into a fixed reference trap in which the SCode lambda was
	inserted; it must instead expand into an expression that evaluates
	the lambda and wraps it in a reference trap.

2001-12-21 13:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: clsmac.scm (1.6), edwin.pkg (1.279), macros.scm (1.68):
	Store macro definitions in environments rather than in syntax
	tables.

2001-12-21 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.35), runtime/make.scm (14.81),
	runtime/runtime.pkg (14.401), sf/pardec.scm (4.14), sf/sf.pkg
	(4.15): Store macro definitions in environments rather than in
	syntax tables.

2001-12-21 13:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (4.21): Eliminate reference to SYNTAX-TABLE?.

2001-12-21 13:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.62): Eliminate reference to
	GUARANTEE-SYNTAX-TABLE.

2001-12-21 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/dsyn.scm (1.10): Store macro definitions in
	environments rather than in syntax tables.

2001-12-21 13:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (4.20): Eliminate references to MAKE-SYNTAX-TABLE.

2001-12-21 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: macros.scm (1.6), make.scm (14.80), runtime.pkg
	(14.400), syntab.scm (14.9), syntax.scm (14.48), sysmac.scm (14.6),
	uenvir.scm (14.50), unsyn.scm (14.25), urtrap.scm (14.9): Store
	macro definitions in environments rather than in syntax tables.

2001-12-21 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookup.c (9.68): Fix bug: looking up a macro returns
	the trap, not the transformer.

2001-12-21 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.79), runtime.pkg (14.399), syntax.scm
	(14.47), uenvir.scm (14.49): Change DEFINE-SYNTAX so that it emits
	code to define the macro at run time when written at top level.

2001-12-20 23:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/errors.h (9.44), microcode/lookprm.c (1.17),
	microcode/lookup.c (9.67), microcode/sdata.h (9.39),
	microcode/trap.h (9.49), microcode/utabmd.scm (9.81),
	microcode/version.h (11.183), runtime/error.scm (14.54),
	runtime/runtime.pkg (14.398), runtime/uenvir.scm (14.48),
	runtime/uerror.scm (14.50), runtime/urtrap.scm (14.8): Implement
	support for storing macro transformers in environments.

2001-12-20 20:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.78), runtime.pkg (14.397): Fix problem:
	this file was being syntaxed in the (RUNTIME) package but loaded
	into the () package; it needed on the macros in (RUNTIME).  Also
	add this file to the package description, so that its bindings are
	visible.

2001-12-20 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.57): Fix comment.

2001-12-20 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn3.scm (4.13), base/crsend.scm (1.11),
	base/lvalue.scm (4.23), base/scode.scm (4.12), base/utils.scm
	(4.22), fggen/canon.scm (1.19), fggen/fggen.scm (4.34),
	machines/C/lapgen.scm (1.13), machines/C/rules3.scm (1.10),
	machines/C/rulfix.scm (1.4), machines/C/rulflo.scm (1.6),
	machines/alpha/dassm1.scm (1.3), machines/alpha/dassm2.scm (1.3),
	machines/alpha/instr1.scm (1.5), machines/alpha/instr2.scm (1.3),
	machines/alpha/instr3.scm (1.3), machines/alpha/lapgen.scm (1.8),
	machines/alpha/rules3.scm (1.9), machines/alpha/rulflo.scm (1.5),
	machines/bobcat/assmd.scm (1.38), machines/bobcat/dassm1.scm
	(4.21), machines/bobcat/dassm2.scm (4.24),
	machines/bobcat/flinstr1.scm (1.3), machines/bobcat/flinstr2.scm
	(1.3), machines/bobcat/instr2.scm (1.20),
	machines/bobcat/instr3.scm (1.19), machines/bobcat/instr4.scm
	(1.5), machines/bobcat/lapgen.scm (4.52),
	machines/bobcat/machin.scm (4.33), machines/bobcat/rules3.scm
	(4.42), machines/i386/assmd.scm (1.4), machines/i386/dassm1.scm
	(1.11), machines/i386/dassm2.scm (1.10), machines/i386/dassm3.scm
	(1.8), machines/i386/instr1.scm (1.14), machines/i386/instr2.scm
	(1.8), machines/i386/instrf.scm (1.16), machines/i386/lapgen.scm
	(1.29), machines/i386/rules3.scm (1.36), machines/i386/rulfix.scm
	(1.32), machines/i386/rulflo.scm (1.23), machines/mips/assmd.scm
	(1.4), machines/mips/dassm1.scm (1.6), machines/mips/dassm2.scm
	(1.6), machines/mips/instr1.scm (1.8), machines/mips/instr2a.scm
	(1.6), machines/mips/instr2b.scm (1.5), machines/mips/instr3.scm
	(1.4), machines/mips/lapgen.scm (1.17), machines/mips/mips.scm
	(1.3), machines/mips/rules3.scm (1.19), machines/mips/rulflo.scm
	(1.9), machines/sparc/assmd.scm (1.3), machines/sparc/instr1.scm
	(1.3), machines/sparc/instr2a.scm (1.3), machines/sparc/instr2b.scm
	(1.3), machines/sparc/instr3.scm (1.3), machines/sparc/lapgen.scm
	(1.4), machines/sparc/rules3.scm (1.3), machines/sparc/rulflo.scm
	(1.3), machines/spectrum/assmd.scm (1.32),
	machines/spectrum/dassm1.scm (4.21), machines/spectrum/dassm2.scm
	(4.22), machines/spectrum/instr1.scm (1.5),
	machines/spectrum/instr2.scm (1.9), machines/spectrum/instr3.scm
	(1.4), machines/spectrum/lapgen.scm (4.49),
	machines/spectrum/rules3.scm (4.43), machines/spectrum/rulfix.scm
	(4.49), machines/spectrum/rulflo.scm (4.41), machines/vax/assmd.scm
	(4.8), machines/vax/dassm1.scm (4.8), machines/vax/dassm2.scm
	(4.14), machines/vax/instr2.scm (1.8), machines/vax/instr3.scm
	(1.12), machines/vax/lapgen.scm (4.17), machines/vax/rules3.scm
	(4.13), machines/vax/rulfix.scm (1.7), rtlbase/rtlreg.scm (4.7),
	machines/alpha/assmd.scm (1.3): Eliminate MACRO special form.

2001-12-20 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.46), 6001/arith.scm (1.7): Eliminate MACRO
	special form.

2001-12-20 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.10), swat/scheme/mit-xhooks.scm (1.3),
	wabbit/test-wabbit.scm (1.2), edwin/buffer.scm (1.183),
	edwin/calias.scm (1.22), edwin/dosproc.scm (1.6), edwin/schmod.scm
	(1.58), edwin/search.scm (1.152), edwin/tterm.scm (1.31): Eliminate
	MACRO special form.

2001-12-20 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/apply.scm (1.3), runtime/arith.scm (1.47),
	runtime/graphics.scm (1.18), runtime/infstr.scm (1.12),
	runtime/list.scm (14.28), runtime/vector.scm (14.18),
	runtime/scomb.scm (14.17), runtime/starbase.scm (1.14),
	sf/object.scm (4.11): Eliminate MACRO special form.

2001-12-20 16:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.77): Eliminate references to
	THE-ENVIRONMENT.

2001-12-20 15:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.21), compiler/etc/comcmp.scm (1.8),
	compiler/machines/i386/instr1.scm (1.13),
	compiler/machines/i386/instr2.scm (1.7),
	compiler/machines/i386/instrf.scm (1.15),
	compiler/machines/spectrum/instr2.scm (1.8),
	compiler/machines/vax/instr1.scm (1.8),
	compiler/machines/vax/instr2.scm (1.7),
	compiler/machines/vax/instr3.scm (1.11), edwin/regexp.scm (1.76),
	edwin/search.scm (1.151), edwin/syntax.scm (1.87), edwin/utils.scm
	(1.49), microcode/os2pm.scm (1.9), microcode/utabmd.scm (9.80),
	runtime/arith.scm (1.46), runtime/debug.scm (14.41),
	runtime/error.scm (14.53), runtime/os2winp.scm (1.16),
	runtime/parse.scm (14.34), runtime/recslot.scm (1.5),
	runtime/rgxcmp.scm (1.117), runtime/syntax.scm (14.45),
	sos/instance.scm (1.12), star-parser/matcher.scm (1.27),
	star-parser/parser.scm (1.30),
	swat/scheme/control-floating-errors.scm (1.2), win32/win_ffi.scm
	(1.7): Eliminate DEFINE-MACRO special form.

2001-12-20 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.44): Eliminate definition of SCODE-QUOTE.

2001-12-20 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.24): Fix over-long lines.

2001-12-20 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.76): Eliminate references to
	THE-ENVIRONMENT.

2001-12-20 13:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/syntax.scm (1.28), sf/usiexp.scm (4.41): Eliminate
	references to THE-ENVIRONMENT.

2001-12-20 13:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.18), runtime/infutl.scm (1.66),
	runtime/syntax.scm (14.43), sf/gconst.scm (4.27): Eliminate
	references to MAKE-ENVIRONMENT.

2001-12-20 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/disload.scm (1.11), edwin/schmod.scm (1.57),
	runtime/macros.scm (1.5), runtime/unsyn.scm (14.23),
	runtime/runtime.pkg (14.396): Eliminate references to
	MAKE-ENVIRONMENT.

2001-12-20 11:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/scode.scm (4.11), compiler/fggen/canon.scm (1.17),
	compiler/fggen/fggen.scm (4.33), cref/anfile.scm (1.7),
	runtime/codwlk.scm (14.4), runtime/illdef.scm (1.5),
	runtime/prgcop.scm (1.7), runtime/runtime.pkg (14.395),
	runtime/scode.scm (14.17), runtime/unsyn.scm (14.22),
	runtime/xeval.scm (1.7), sf/cgen.scm (4.5), sf/chtype.scm (4.4),
	sf/copy.scm (4.6), sf/free.scm (4.4), sf/object.scm (4.10),
	sf/sf.sf (4.11), sf/subst.scm (4.17), sf/xform.scm (4.11),
	sos/macros.scm (1.11): Eliminate IN-PACKAGE and USING-SYNTAX
	special forms.

2001-12-20 11:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.33), compiler/rtlopt/rdebug.scm (1.4),
	edwin/artdebug.scm (1.30), edwin/debug.scm (1.59), edwin/kmacro.scm
	(1.44), edwin/schmod.scm (1.56), imail/fake-env.scm (1.5),
	pcsample/load.scm (1.6), runtime/pp.scm (14.43),
	runtime/runtime.pkg (14.394), runtime/syntax.scm (14.42),
	runtime/thread.scm (1.35), star-parser/shared.scm (1.22),
	swat/scheme/load.scm (1.6), swat/scheme/mit-xhooks.scm (1.2),
	win32/wt_user.scm (1.5): Eliminate IN-PACKAGE and USING-SYNTAX
	special forms.

2001-12-20 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* sicp/studen.scm (1.11), runtime/syntax.scm (14.41),
	runtime/runtime.pkg (14.393), runtime/syntab.scm (14.8): Eliminate
	references to SYNTAX-TABLE-DEFINE and SYNTAX-TABLE-REF.

2001-12-20 01:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml.pkg (1.9), runtime/runtime.pkg (14.392),
	runtime/syntax.scm (14.40): Eliminate references to
	SYSTEM-GLOBAL-SYNTAX-TABLE.

2001-12-20 01:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/scheme/scc-macros.scm (1.2), win32/ffimacro.scm (1.4),
	xml/ed-ffi.scm (1.4): Eliminate references to
	SYSTEM-GLOBAL-SYNTAX-TABLE.

2001-12-20 01:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/load.scm (1.9), star-parser/ed-ffi.scm (1.5),
	star-parser/parser.pkg (1.16), star-parser/matcher.scm (1.26),
	star-parser/parser.scm (1.29): Eliminate references to
	SYSTEM-GLOBAL-SYNTAX-TABLE.

2001-12-20 01:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.34), runtime/macros.scm (1.4),
	sf/pardec.scm (4.13), sf/toplev.scm (4.19), sicp/strmac.scm (1.3):
	Eliminate references to SYSTEM-GLOBAL-SYNTAX-TABLE.

2001-12-20 01:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/compile.scm (1.4): Eliminate references to
	SYSTEM-GLOBAL-SYNTAX-TABLE.

2001-12-20 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.sf (1.17): Fix bug: compiler was
	being syntaxed in wrong environment.

2001-12-19 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.20): Fix missing bindings for
	UCODE-PRIMITIVE and UCODE-TYPE.

2001-12-19 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: macros.scm (4.18), macros.scm (4.19): Fix problem
	caused by SCode-manipulating macro being closed in compiler
	environment.

2001-12-19 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/cref.sf (1.15): Fix dangling reference to
	SF/SET-DEFAULT-SYNTAX-TABLE!.

2001-12-19 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/win32.pkg (1.14): Eliminate references to
	SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: 6001.sf (1.13), pic-ops.scm (1.6), pic-read.scm (1.6),
	pic-reco.scm (1.8), picture.scm (1.30): Eliminate references to
	SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.14): Eliminate references to
	SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/instance.scm (1.11): Eliminate references to
	SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/switch.scm (4.26), machines/C/compiler.pkg
	(1.12), machines/C/decls.scm (1.6), machines/alpha/compiler.pkg
	(1.15), machines/alpha/compiler.sf (1.10), machines/alpha/decls.scm
	(1.8), machines/bobcat/compiler.pkg (1.52),
	machines/bobcat/compiler.sf (1.22), machines/bobcat/decls.scm
	(4.39), machines/i386/compiler.pkg (1.26),
	machines/i386/compiler.sf (1.16), machines/i386/decls.scm (1.11),
	machines/mips/compiler.pkg (1.22), machines/mips/compiler.sf-big
	(1.12), machines/mips/compiler.sf-little (1.12),
	machines/mips/decls.scm (1.12), machines/sparc/decls.scm (1.6),
	machines/spectrum/compiler.pkg (1.52),
	machines/spectrum/compiler.sf (1.22), machines/spectrum/decls.scm
	(4.37), machines/vax/compiler.pkg (1.24), machines/vax/compiler.sf
	(1.13), machines/vax/decls.scm (4.15): Eliminate
	COMPILER:ENABLE-EXPANSION-DECLARATIONS? and the associated
	early-expansion macros.  This hasn't been used in a while and
	there's no clear way to make it work when environments and syntax
	tables are unified.

2001-12-19 21:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/syerly.scm (1.12), machines/alpha/inerly.scm
	(1.5), machines/bobcat/inerly.scm (1.10), machines/i386/inerly.scm
	(1.6), machines/mips/inerly.scm (1.5), machines/sparc/inerly.scm
	(1.5), machines/spectrum/inerly.scm (1.5), machines/vax/inerly.scm
	(1.9): Remove unused definitions of DEFINE-EARLY-TRANSFORMER.  Move
	bindings for EARLY-TRANSFORMERS and EARLY-INSTRUCTIONS to
	"back/syerly.scm".

2001-12-19 21:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: alpha/inerly.scm (1.4), i386/inerly.scm
	(1.5), mips/inerly.scm (1.4), sparc/inerly.scm (1.4),
	spectrum/inerly.scm (1.4): Remove unused EQ-SUBSET? definitions.

2001-12-19 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/win32.sf (1.7): Eliminate references to
	SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* wabbit/wabbit.sf (1.4), win32/win32.sf (1.6), sf/sf.sf (4.10):
	Eliminate references to SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 16:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.sf (1.12), pcsample/pcs.sf (1.3), runtime/runtime.sf
	(14.17), swat/scheme/swat.cbf (1.2), swat/scheme/swat.sf (1.4):
	Eliminate references to SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.391), sysmac.scm (14.5): Eliminate
	references to SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.9), base/macros.scm (4.17),
	machines/C/compiler.pkg (1.11), machines/C/compiler.sf (1.9),
	machines/C/decls.scm (1.5), machines/alpha/compiler.pkg (1.14),
	machines/alpha/compiler.sf (1.9), machines/alpha/decls.scm (1.7),
	machines/alpha/inerly.scm (1.3), machines/alpha/insmac.scm (1.3),
	machines/alpha/lapgen.scm (1.7), machines/alpha/rules1.scm (1.4),
	machines/alpha/rules2.scm (1.3), machines/alpha/rules3.scm (1.8),
	machines/alpha/rules4.scm (1.4), machines/alpha/rulfix.scm (1.5),
	machines/alpha/rulflo.scm (1.4), machines/bobcat/compiler.pkg
	(1.51), machines/bobcat/compiler.sf (1.21),
	machines/bobcat/decls.scm (4.38), machines/bobcat/inerly.scm (1.9),
	machines/bobcat/insmac.scm (1.128), machines/i386/compiler.pkg
	(1.25), machines/i386/compiler.sf (1.15), machines/i386/decls.scm
	(1.10), machines/i386/inerly.scm (1.4), machines/i386/insmac.scm
	(1.12), machines/mips/compiler.pkg (1.21),
	machines/mips/compiler.sf-big (1.11),
	machines/mips/compiler.sf-little (1.11), machines/mips/decls.scm
	(1.11), machines/mips/inerly.scm (1.3), machines/mips/insmac.scm
	(1.4), machines/sparc/decls.scm (1.5), machines/sparc/inerly.scm
	(1.3), machines/sparc/insmac.scm (1.3),
	machines/spectrum/compiler.pkg (1.51),
	machines/spectrum/compiler.sf (1.21), machines/spectrum/decls.scm
	(4.36), machines/spectrum/inerly.scm (1.3),
	machines/spectrum/insmac.scm (1.4), machines/vax/compiler.pkg
	(1.23), machines/vax/compiler.sf (1.12), machines/vax/decls.scm
	(4.14), machines/vax/dsyn.scm (1.9), machines/vax/inerly.scm (1.8),
	machines/vax/insmac.scm (1.14): Remove explicit references to
	syntax tables.

2001-12-19 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/compile.scm (1.5), sos/ed-ffi.scm (1.3), sos/instance.scm
	(1.10), sos/sos.pkg (1.10), runtime/option.scm (14.39),
	swat/scheme/other/unhash-testing.scm (1.2): Eliminate references to
	SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-19 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/i386.m4 (1.56), cmpintmd/i386.h (1.34):
	Change cache serialization to do condition testing once when Scheme
	is started rather each time a closure is created.

2001-12-19 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: toplev.scm (4.18), sf.pkg (4.14): Delete
	SF/SET-DEFAULT-SYNTAX-TABLE!.

2001-12-19 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.29), comred.scm (1.123), debug.scm
	(1.58), editor.scm (1.253), evlcom.scm (1.65), filcom.scm (1.223),
	intmod.scm (1.115), schmod.scm (1.55): Excise syntax tables from
	the REPL.

2001-12-19 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.52), runtime/load.scm (14.60),
	runtime/packag.scm (14.39), runtime/rep.scm (14.57),
	runtime/runtime.pkg (14.390), runtime/syntax.scm (14.39),
	runtime/usrint.scm (1.17), 6001/nodefs.scm (1.12): Excise syntax
	tables from the REPL.

2001-12-18 23:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.47): Reimplement
	EXTEND-INTERPRETER-ENVIRONMENT and
	MAKE-NULL-INTERPRETER-ENVIRONMENT so that they don't use EVAL, and
	so that they take optional arguments specifying bindings to be
	defined in the newly-allocated environment.

2001-12-18 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.37), sf/sf.pkg (4.13), runtime/runtime.pkg
	(14.389), runtime/global.scm (14.56), runtime/syntax.scm (14.38):
	Move SYNTAXER/DEFAULT-ENVIRONMENT into the syntaxer.

2001-12-18 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usicon.scm (4.5), sos/load.scm (1.8): Change references to
	LOCAL-ASSIGNMENT and LEXICAL-* to instead use procedures in the
	environment abstraction.

2001-12-18 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.49): Change references to LOCAL-ASSIGNMENT
	and LEXICAL-* to instead use procedures in the environment
	abstraction.

2001-12-18 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.62): Use default syntax table for LOAD.

2001-12-18 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/redpkg.scm (1.25): Change order of names in renaming export
	declaration; now first name is always the destination and second is
	always the source.

2001-12-18 20:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/winren.scm (1.6): Rename references to SCode variable
	abstraction.  Eliminate special hack in "rename.scm"; instead use
	new packaging feature to link different names.

2001-12-18 20:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/scheme/load.scm (1.5), compiler/etc/disload.scm (1.10):
	Change references to LOCAL-ASSIGNMENT and LEXICAL-* to instead use
	procedures in the environment abstraction.

2001-12-18 20:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.61), edwin/debug.scm (1.57), edwin/evlcom.scm
	(1.64), edwin/macros.scm (1.67), xml/compile.scm (1.8): Change
	references to LOCAL-ASSIGNMENT and LEXICAL-* to instead use
	procedures in the environment abstraction.

2001-12-18 20:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xform.scm (1.11): Rename references to SCode variable
	abstraction.

2001-12-18 20:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.278), rename.scm (1.8): Rename references to
	SCode variable abstraction.  Eliminate special hack in
	"rename.scm"; instead use new packaging feature to link different
	names.

2001-12-18 20:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.190): Eliminate unnecessary use of
	LEXICAL-UNREFERENCEABLE?.

2001-12-18 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/clsmac.scm (1.5): Rename references to SCode variable
	abstraction.

2001-12-18 20:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.49): Use ENVIRONMENT-DEFINE in place of
	LOCAL-ASSIGNMENT.

2001-12-18 20:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.388), syntab.scm (14.7), syntax.scm
	(14.36), uenvir.scm (14.46): Implement ENVIRONMENT-DEFINE and
	ENVIRONMENT-ASSIGNED?.	Change ENVIRONMENT-LOOKUP to signal an
	error if the variable is unassigned.  Move ENVIRONMENT-SYNTAX-TABLE
	and SET-ENVIRONMENT-SYNTAX-TABLE! into the syntax-table
	abstraction.

2001-12-18 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xform.scm (1.10), edwin.pkg (1.277): Rename references to
	SCode variable abstraction.

2001-12-18 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.59): Allow syntax table to be explicitly
	defaulted.

2001-12-18 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autold.scm (1.59), autold.scm (1.60): Use default syntax
	table for LOAD.

2001-12-18 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: c-mode.scm (1.60), htmlmode.scm (1.5), javamode.scm
	(1.11), midas.scm (1.22), pasmod.scm (1.51), schmod.scm (1.54),
	syntax.scm (1.86), texcom.scm (1.46), tximod.scm (1.25),
	verilog.scm (1.9), vhdl.scm (1.9): Use MAKE-CHAR-SYNTAX-TABLE
	rather than MAKE-SYNTAX-TABLE.

2001-12-18 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.29): Eliminate reference to
	SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-18 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sysmac.scm (14.4): Attach syntax table to (RUNTIME)
	environment.

2001-12-18 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.28): Eliminate references to EDWIN-SYNTAX-TABLE
	and CLASS-SYNTAX-TABLE.

2001-12-18 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.95): (RUNTIME URL) package must inherit from
	(RUNTIME).

2001-12-18 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autold.scm (1.58), clsmac.scm (1.4), decls.scm (1.71),
	dosshell.scm (1.5), ed-ffi.scm (1.52), edwin.pkg (1.276),
	filcom.scm (1.222), fileio.scm (1.156), macros.scm (1.66):
	Eliminate references to EDWIN-SYNTAX-TABLE and CLASS-SYNTAX-TABLE.

2001-12-18 16:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/compile.scm (1.16): Eliminate references to syntax tables.

2001-12-18 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.61): Use GUARANTEE-SYNTAX-TABLE.

2001-12-18 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/ed-ffi.scm (1.18): Eliminate references to syntax tables.

2001-12-18 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.58): Default syntax table must be
	ENVIRONMENT-SYNTAX-TABLE of load environment.

2001-12-18 15:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.114), runtime/uenvir.scm (14.45),
	runtime/runtime.pkg (14.387): Rename EXTEND-IC-ENVIRONMENT to
	EXTEND-INTERPRETER-ENVIRONMENT.

2001-12-18 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.44): Don't generate syntax tables
	automatically in EXTEND-IC-ENVIRONMENT.

2001-12-18 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntab.scm (14.6): Extend syntax-table abstraction so
	that it works on environments as well as syntax tables.

2001-12-18 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.35): Use GUARANTEE-SYNTAX-TABLE.

2001-12-18 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/urtrap.scm (14.7): Create procedures to generate
	unassigned and unbound objects.

2001-12-18 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/symbol.scm (1.7): Replace magic code by reference to
	MAKE-UNMAPPED-UNBOUND-REFERENCE-TRAP.

2001-12-18 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: packag.scm (14.38), runtime.pkg (14.386): Create
	procedure to generate unassigned objects.

2001-12-18 14:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.37): Guarantee that source binding of an
	import is defined.  Source binding of an export is always defined
	by the package description.

2001-12-18 14:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/redpkg.scm (1.24): Don't ever mark the source binding of a
	link as new.  This was an attempt to work around problems with the
	linker, but the problem is in the linker and not here; the linker
	should automatically generate the source binding if it is missing.

2001-12-18 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: bitstr.scm (14.4), blowfish.scm (1.24), boole.scm
	(14.4), boot.scm (14.13), ed-ffi.scm (1.31), equals.scm (14.9),
	fixart.scm (1.8), global.scm (14.55), lambdx.scm (14.10), make.scm
	(14.75), msort.scm (14.9), ntprm.scm (1.37), os2prm.scm (1.48),
	qsort.scm (14.5), queue.scm (14.5), runtime.pkg (14.385), sfile.scm
	(14.32), symbol.scm (1.6), syntax.scm (14.34), udata.scm (14.21),
	unxprm.scm (1.62), vector.scm (14.17): Restructure packaging so
	that all runtime-system packages inherit from the (RUNTIME)
	package.  We will use the latter as a place to attach the syntax
	from SYNTAX-TABLE/SYSTEM-INTERNAL.

2001-12-18 13:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.74): Fix typo in comment.

2001-12-17 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.55): Athlon model 2 is OK as well.

2001-12-17 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.54): Fine tune the code that
	decides when to use CPUID.  For now, use it only for Athlon model
	1, 2, 3, or 4 processors.  According to AMD, the model 6 is OK, and
	perhaps the model 7 as well.  The model 4 is known to be bad, and
	models 1, 2, and 3 are probably bad too.  No Intel processors are
	known to be bad.

2001-12-17 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.53): Fix: ia32_cache_synchronize is
	supposed to be an ordinary C procedure, not an "entry point" for
	"cmpint.c".

2001-12-17 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.52): Use ".586p" rather than
	".386p"; otherwise the CPUID instruction isn't recognized.

2001-12-17 13:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.18): Fix default target; it
	wasn't including everything.

2001-12-17 12:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.13), compiler/machines/C/compiler.sf (1.8),
	compiler/machines/alpha/compiler.sf (1.8),
	compiler/machines/bobcat/compiler.sf (1.20),
	compiler/machines/i386/compiler.sf (1.14),
	compiler/machines/mips/compiler.sf-big (1.10),
	compiler/machines/mips/compiler.sf-little (1.10),
	compiler/machines/spectrum/compiler.sf (1.20),
	compiler/machines/vax/compiler.sf (1.11), cref/Makefile.in (1.2),
	cref/cref.sf (1.14), cref/make.scm (1.24), cref/redpkg.scm (1.23),
	cref/toplev.scm (1.16), edwin/Clean.sh (1.5), edwin/edwin.sf
	(1.27), edwin/make.scm (3.113), imail/Makefile.in (1.3),
	imail/clean.sh (1.4), imail/imail.pkg (1.94), runtime/make.scm
	(14.73), runtime/packag.scm (14.36), runtime/runtime.pkg (14.384),
	runtime/sfile.scm (14.31), runtime/version.scm (14.204),
	runtime-check/Clean.sh (1.3), runtime-check/Setup.sh (1.5),
	sf/butils.scm (4.11), sf/make.scm (4.40), sf/sf.pkg (4.12),
	sos/Makefile.in (1.3), star-parser/Makefile.in (1.2),
	xml/Makefile.in (1.2): Change package system to conditionalize
	everything according to the operating-system type.  All output
	files are now OS-specific, e.g.  "runtime.pkg" produces output
	files "runtime-unx.{pkd,fre,crf}".  Package files can now use the
	conditionalization variable OS-TYPE.

2001-12-16 23:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.221), make.scm (3.112): Allow syntax-table
	information to be left out of FFI tables.  This simplifies
	transition to new system in which syntax information is stored in
	environments.

2001-12-16 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.203): Update to reflect that things have
	changed since the 7.6.0 release.

2001-12-16 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.116), compiler/machines/i386/dassm3.scm
	(1.7), compiler/machines/i386/instr1.scm (1.12),
	compiler/machines/i386/lapgen.scm (1.28),
	compiler/machines/i386/rules3.scm (1.35), microcode/bchdmp.c
	(9.90), microcode/bchgcl.c (9.54), microcode/bintopsb.c (9.74),
	microcode/cmpgc.h (1.32), microcode/cmpint.c (1.95),
	microcode/fasdump.c (9.66), microcode/fasload.c (9.91),
	microcode/gcloop.c (9.49), microcode/nttrap.c (1.19),
	microcode/os2xcpt.c (1.9), microcode/purify.c (9.61),
	microcode/purutl.c (9.52), microcode/uxtrap.c (1.31),
	microcode/version.h (11.182), microcode/wabbit.c (1.9),
	microcode/cmpauxmd/i386.m4 (1.51), microcode/cmpintmd/alpha.h
	(1.6), microcode/cmpintmd/i386.h (1.33): Add explicit cache
	synchronization support to work around a bug in the Athlon.

2001-12-16 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.115.4.1), microcode/version.h
	(11.181.4.2): Add explicit cache synchronization support to work
	around a bug in the Athlon.

2001-12-16 00:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.34.4.3): Use new
	compiled-code hook to executes the CPUID instruction out of line
	only on those processors that need it.

2001-12-16 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.32.4.2), microcode/cmpauxmd/i386.m4
	(1.50.8.2), compiler/machines/i386/lapgen.scm (1.27.4.1): Add
	asm_conditionally_serialize, a compiled-code hook that executes the
	CPUID instruction for some processors.

2001-12-15 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.34.4.2): Use a different
	code sequence for CPUID; see if it gets better performance.

2001-12-15 21:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm3.scm (1.6.4.1): Add CPUID
	instruction.

2001-12-14 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.181.4.1): Update version number for IA-32
	cache synchronization.

2001-12-14 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2xcpt.c (1.8.4.1), purify.c (9.60.4.1), purutl.c
	(9.51.4.1), uxtrap.c (1.30.4.1), wabbit.c (1.8.4.1): Eliminate
	stupid -1 offset in MANIFEST_CLOSURE_END.

2001-12-14 16:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.94.4.1), fasdump.c (9.65.4.1), fasload.c
	(9.90.4.1), gcloop.c (9.48.4.1), nttrap.c (1.18.4.1): Eliminate
	stupid -1 offset in MANIFEST_CLOSURE_END.

2001-12-14 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpintmd/alpha.h (1.5.8.1), bchdmp.c (9.89.4.1),
	bchgcl.c (9.53.4.1), bintopsb.c (9.73.4.1), cmpgc.h (1.31.4.1):
	Eliminate stupid -1 offset in MANIFEST_CLOSURE_END.

2001-12-14 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.34.4.1): Invoke CPUID
	instruction after allocating a closure, in order to synchronize the
	I/D caches.  This is a temporary kludge for proof of concept; it
	will be replaced by more efficient code.

2001-12-14 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/instr1.scm (1.11.4.1): Add support for
	CPUID instruction.

2001-12-14 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.32.4.1): Add support for cache
	synchronization.

2001-12-14 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.50.8.1): Add support for CPUID
	instruction.  Remove support for DOS and HACK_SEGMENT_REGS.

2001-12-11 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/switch.scm (4.25.2.1), fggen/canon.scm
	(1.16.2.1): Eliminate COMPILER:AVOID-SCODE?.

2001-12-11 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* sicp/genenv.scm (1.3.2.1): Eliminate use of MAKE-ENVIRONMENT.

2001-12-10 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/fake-env.scm (1.4.2.2), edwin/intmod.scm (1.113.2.1):
	Rename EXTEND-IC-ENVIRONMENT to EXTEND-INTERPRETER-ENVIRONMENT.

2001-12-10 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/disload.scm (1.9.2.1): Eliminate use of
	MAKE-ENVIRONMENT.

2001-12-10 13:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.20.2.1): Eliminate rule for
	MAKE-ENVIRONMENT.

2001-12-10 13:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.21.2.1), runtime/macros.scm (1.3.2.1),
	edwin/schmod.scm (1.53.2.1), runtime/infutl.scm (1.65.2.1):
	Eliminate rule for MAKE-ENVIRONMENT.

2001-12-10 13:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/fake-env.scm (1.4.2.1): Eliminate use of MAKE-ENVIRONMENT.

2001-12-06 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookup.c (9.66): Must call MAP_TO_UNASSIGNED on value
	of definition when creating a new binding.

2001-12-04 21:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.guess (11.2), config.sub (11.2): Update
	autoconf config.* files.

2001-12-03 13:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.279), load.scm (1.37): Change
	imail-forward to (by default) ask whether to forward all headers.

2001-11-27 11:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/Makefile.in (1.6): URL support no longer in runtime
	system; remove reference.

2001-11-26 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.17): Change default target so
	that it doesn't try to generate "utabmd.bin".  The "all" target
	remains unchanged.

2001-11-26 21:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/redpkg.scm (1.22): Make another attempt to fix the problem
	with imports.  The previous fix didn't work when the analysis
	information was absent.

2001-11-26 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/msort.scm (14.8): Tweak merge sort to be stable.

2001-11-20 20:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unicode.scm (1.2): Change WELL-FORMED-CODE-POINTS-LIST?
	to require that the argument be a proper list.

2001-11-19 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.21): Optimizer wasn't deleting unused
	procedure-valued bindings if the procedure had side-effects.  The
	bug fix to make top-level failure continuations do backtracking
	prevented them from being substituted properly; the substitution
	predicate was extended to allow this.  Also, some valuable
	substitutions weren't being seen because the optimizers were being
	run in a fixed order.  After the peephole optimization is done, it
	reveals more possibilities for substitution.  So now the optimizers
	are re-run until nothing more can be done.

2001-11-19 23:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.25), parser.scm (1.28): Top-level
	failure continuations must do backtracking.

2001-11-19 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.195): Change imap-url-mailbox to always
	be a string.  The root "mailbox" is "", and the root container is
	"/".  Both of these are handled specially when converting the URL
	to a string.
	
	This fixes the bug that allowed the malformed container URL
	"imap://localhost//".

2001-11-17 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.194): Change file naming for cache files,
	so that it satisfies more stringent Windows requirements.  Make
	sure that directory structure exists before locking a folder.

2001-11-17 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.193): Change file naming for cache files,
	so that it satisfies more stringent Windows requirements.  Make
	sure that directory structure exists before locking a folder.

2001-11-15 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/redpkg.scm (1.21): Fix bug: imported bindings in package
	extensions weren't being constructed.

2001-11-14 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.202): Update version number for 7.6.0
	release.

2001-11-14 15:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.20): Fix some problems in the pointer
	optimization: pointers were being incorrect elided across lambda
	expressions, and external pointer bindings were being elided.  The
	latter is fixed by introducing a mechanism to distinguish internal
	identifiers, which eliminates the need for the WITH-POINTER kludge.

2001-11-14 15:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: shared.scm (1.19), matcher.scm (1.24), parser.scm
	(1.27): Fix some problems in the pointer optimization: pointers
	were being incorrect elided across lambda expressions, and external
	pointer bindings were being elided.  The latter is fixed by
	introducing a mechanism to distinguish internal identifiers, which
	eliminates the need for the WITH-POINTER kludge.

2001-11-14 13:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.18): Change naming of peephole
	optimizer.  Fold all optimization into GENERATE-EXTERNAL-PROCEDURE.

2001-11-14 13:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: shared.scm (1.17), matcher.scm (1.23), parser.scm
	(1.26): Change naming of peephole optimizer.  Fold all optimization
	into GENERATE-EXTERNAL-PROCEDURE.

2001-11-14 13:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.16): Add optimizer to elide unnecessary
	buffer-pointer assignments.

2001-11-11 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.36), xml/load.scm (1.4): Runtime support for
	*PARSER now integrated into the runtime system.

2001-11-11 01:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: buffer.scm (1.12), unicode.scm (1.7): Move unicode
	support into runtime system.

2001-11-11 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unicode.scm (1.1), runtime/ed-ffi.scm (1.30),
	runtime/runtime.pkg (14.383), star-parser/parser.pkg (1.15),
	star-parser/compile.scm (1.4), star-parser/ed-ffi.scm (1.4): Move
	unicode support into runtime system.

2001-11-11 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rexp.scm (1.18): Fix typo.

2001-11-11 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: parser-buffer.scm (1.1), runtime.pkg (14.382),
	ed-ffi.scm (1.29): Move parser-buffer abstraction into runtime
	system.

2001-11-11 00:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.15): Reorganize code for presentation
	style -- no change in function.  Add comments explaining how new
	optimizer works.  Split up some large procedures into smaller
	focused pieces.  Reorder code to improve readability.

2001-11-10 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.22), parser.scm (1.25): Add comment
	explaining the WITH-POINTER kludge.

2001-11-09 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: load.scm (1.11), matcher.scm (1.20), parser.scm
	(1.23), shared.scm (1.14), parser.scm (1.24), matcher.scm (1.21):
	Implement substitution optimizer, which does a kind of data-flow
	analysis to eliminate unnecessary lambda expressions.

2001-11-09 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/compile.scm (1.7): Need SOS loaded for proper compilation.

2001-11-06 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.192): Add locking mechanism for the IMAP
	folder cache.  There is one lock per folder, and the lock is held
	only while the folder cache is being read and/or written.  IMAIL
	will try three times to obtain the lock, waiting one second between
	retries; thereafter it ignores the cache until the lock becomes
	available.

2001-11-05 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.135): Add locking mechanism for the IMAP folder
	cache.	There is one lock per folder, and the lock is held only
	while the folder cache is being read and/or written.  IMAIL will
	try three times to obtain the lock, waiting one second between
	retries; thereafter it ignores the cache until the lock becomes
	available.

2001-11-05 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.191), imail-top.scm (1.278), imail.pkg
	(1.93): Add locking mechanism for the IMAP folder cache.  There is
	one lock per folder, and the lock is held only while the folder
	cache is being read and/or written.  IMAIL will try three times to
	obtain the lock, waiting one second between retries; thereafter it
	ignores the cache until the lock becomes available.

2001-11-05 16:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: url.scm (1.11), load.scm (1.35): Make sure *PARSER is
	loaded for IMAIL.  It's not necessary to load it just for the URL
	file.

2001-11-05 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/compile.scm (1.15), runtime/ed-ffi.scm (1.28),
	runtime/runtime.pkg (14.381), runtime/version.scm (14.201): Move
	URL support back to IMAIL from the runtime system.

2001-11-05 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.91), imail/ed-ffi.scm (1.17), imail/imail.pkg
	(1.92), imail/load.scm (1.34), runtime/optiondb.scm (1.13),
	runtime/url.scm (1.11): Move URL support back to IMAIL from the
	runtime system.

2001-11-05 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/url.scm (1.10): Move this back to IMAIL from the runtime
	system.  Unlike anything else in the runtime system, it requires
	*PARSER to compile, and I'm not ready to add that dependency.

2001-11-05 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/load.scm (1.3): Add missing option dependencies.

2001-11-05 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.115): Many changes to closure analysis
	require incrementing version number.

2001-11-05 13:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.29): Add long explanation of the
	analysis.

2001-11-05 13:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.28): Stylistic changes.

2001-11-05 13:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.27): Three fixes that together
	resolve the problem of compiling the XML parser.  (1)
	FOR-EACH-CALLEE! claimed to examine all of the callees, but it
	wasn't looking at procedures called from descendant blocks that had
	been disowned.	(2) When removing dependent constraints, due to
	closure, constraints that had indirect dependencies on the
	now-closed procedure weren't being removed.  (3) When adding
	undrifting constraints due to closure contagion, it's wrong to
	constrain the invocation block of a trivial closure.

2001-11-03 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.26): Use new names for
	LIST-TRANSFORM- procedures; eliminate private definition for
	LIST-TRANSFORM-NEGATIVE!.  Open up definition of FOR-EACH-CALLEE!
	so that it can be experimented with.  Change implementation of
	undrifting conditions so that they can have multiple dependencies.

2001-11-02 12:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.53): Add indentation bindings for new names
	in runtime system.

2001-11-02 12:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.42), uenvir.scm (14.43): Fix bug:
	ENVIRONMENT-BOUND? wasn't examining ancestors of compiled-code
	environment frames.

2001-11-02 09:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.25): Rearrange code to separate out
	manipulation of constraints list.

2001-11-01 23:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.24): Add explicit CONDITION datatype
	to track the conditions that tag undrifting constraints.  This
	simplifies the code and clarifies what is happening.
	
	Also change PENDING-UNDRIFTING? to examine the conditions for
	validity in the same way that UNDRIFT-PROCEDURES! does.

2001-11-01 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.23): Guarantee that empty constraint
	entries are entirely removed.

2001-11-01 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: list.scm (14.27), runtime.pkg (14.380): Change names:
	
	    list-transform-positive => keep-matching-items
	    list-transform-negative => delete-matching-items
	    list-search-positive    => find-matching-item
	
	Implement new procedures:
	
	    keep-matching-items!
	    delete-matching-items!

2001-11-01 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.22): Add hooks to generate debugging
	info about constraints.

2001-11-01 13:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.21): Use RVALUE/TRUE-PROCEDURE?
	where appropriate.

2001-11-01 13:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/: envopt.scm (1.10), closan.scm (4.20): Rewrite
	for style.

2001-11-01 13:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/: closan.scm (4.19), envopt.scm (1.9): Change
	value of PROCEDURE-FREE-CALLEES so that it contains sets of blocks
	rather than lists of variables.

2001-10-30 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.277): Change M-x imail-file-message to
	default to the last output file.

2001-10-30 14:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.220): Use PROMPT-OPTIONS-DEFAULT-STRING to
	determine default prompt.  This allows caller to specify that
	history is to be used.

2001-10-30 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.198), edwin.pkg (1.275): Implement
	PROMPT-OPTIONS-DEFAULT-STRING to determine whether a set of options
	specifies a default prompt string.

2001-10-25 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.30): Modern GNU/Linux implementations
	provide full siginfo and sigcontext support, so use that instead of
	kludging our own.

2001-10-25 13:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.37): Add code to reinitialize the
	floating-point control word on IA-32 machines when SIGFPE is
	received.  When this isn't done, all of the traps are disabled.

2001-10-25 11:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.276): Add workaround for non-standard MIME
	encoding types used by Microsoft.

2001-10-23 20:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/proced.scm (4.23): Implement
	RVALUE/TRUE-PROCEDURE?.

2001-10-23 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prmhash.c (11.4): Fix problem: I was interpreting the
	meaning of mhash_count incorrectly.

2001-10-22 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/desenv.scm (4.5): Update for style.

2001-10-22 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.15): Update for style.

2001-10-22 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: lvalue.scm (4.22), proced.scm (4.22), rvalue.scm
	(4.8): Update for style.

2001-10-22 15:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/proced.scm (4.21): Update for style.

2001-10-21 20:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.7): Add FLO:FINITE?.

2001-10-16 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.16): Fix newline convention of
	debugging tools to match current convention.

2001-10-16 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.11): Fix problem in declaration parser.

2001-10-16 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/optiondb.scm (1.8): Add *PARSER and XML options.

2001-10-16 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.114): Fix bug: don't avoid coloring
	part of the graph just because it is going to be inlined later. 
	There is probably a subtle bug here, but finding it will require
	too much thought, and this fix appears to work.

2001-10-16 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.19), parser.scm (1.22), shared.scm
	(1.13): Add code to reuse existing buffer pointers where possible.

2001-10-16 12:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.18), parser.scm (1.21), shared.scm
	(1.12): OK, this time it's right.  I've gone through all the
	combinations, and everything makes sense.  There are some minor
	efficiency issues which will be resolved in the next revision.

2001-10-16 12:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/conect.scm (4.6): Fix bug: don't avoid coloring
	part of the graph just because it is going to be inlined later. 
	There is probably a subtle bug here, but finding it will require
	too much thought, and this fix appears to work.

2001-10-16 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.17), parser.scm (1.20), shared.scm
	(1.11): Rewrite control structures again.  These seem correct,
	after many hours of thought and testing.  Also make new top-level
	wrapper for code generators, and eliminate a couple of unused
	definitions.

2001-10-15 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: load.scm (1.10), matcher.scm (1.16), parser.scm
	(1.19), shared.scm (1.10): Complete rewrite of output control
	structure.  New structure supports backtracking properly, doing
	greedy matching until a failure occurs, then backtracking
	arbitrarily deeply to find a way forward.

2001-10-13 22:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.190): Fix bug: large message-body parts
	were being stored in the cache as zero-length strings.

2001-10-13 01:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.18): Rewrite so we don't depend on
	matchers lifting complex expressions upwards.

2001-10-10 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.38): Fix LOAD-OPTION so that a loading
	option can load any other option.

2001-10-10 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: url.scm (1.10), runtime.pkg (14.379): The parser
	language developed for IMAIL has been replaced by the newer *PARSER
	facility.

2001-10-10 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.14), imail.pkg (1.90), imail-imap.scm
	(1.189), imap-response.scm (1.44), imap-syntax.scm (1.17), load.scm
	(1.33), ed-ffi.scm (1.16), parser.scm (1.5): The parser language
	developed for IMAIL has been replaced by the newer *PARSER
	facility.

2001-10-09 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/Stage.sh (1.3): Fix quoting problem.

2001-10-09 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/optiondb.scm (1.12): Fix case of symbol.

2001-10-09 12:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/matcher.scm (1.15): Interpret bare string or char as
	self.

2001-10-09 12:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/parser.scm (1.18): Interpret bare string or char to
	be noise.

2001-10-05 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.13), ed-ffi.scm (1.15), imail.pkg (1.89),
	load.scm (1.32), rexp.scm (1.16), url.scm (1.9): Remove URL and
	rexp support, which are now in the runtime system.

2001-10-05 15:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/compile.scm (1.3): Don't forget to compile *parser and xml
	support.

2001-10-05 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.34): Don't clear the screen on restore.

2001-10-05 11:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: Makefile.in (1.5), ed-ffi.scm (1.27), optiondb.scm
	(1.11), runtime.pkg (14.378): Add URL-encoding support.

2001-10-05 11:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/url.scm (1.9): Fix copyright.  Guarantee
	regular-expression is loaded.  Fix bug in URL:SUBSTRING-ENCODED?.

2001-10-05 11:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rexp.scm (1.17): Fix copyright dates.

2001-10-05 11:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.26): Add missing file: ntdir.

2001-10-05 11:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: Makefile.in (1.4), ed-ffi.scm (1.25), optiondb.scm
	(1.10), runtime.pkg (14.377): Add rexp abstraction.

2001-10-05 11:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rexp.scm (1.16): Update copyright.  Add comment
	explaining contents of file.  Change logic since character sets are
	no longer represented as strings.  If character set is argument to
	CASE-FOLD, then case-fold it.

2001-10-04 13:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* configure.in (1.5): Integrate *PARSER and XML support into
	system.

2001-10-04 13:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/Makefile.in (1.1), xml/Makefile.in (1.1): Integrate
	into MIT Scheme.

2001-10-04 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* Setup.sh (1.7), Makefile.in (1.18): Integrate *PARSER and XML
	support into system.

2001-10-04 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/compile.scm (1.6): Integrate into MIT Scheme.

2001-10-04 12:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: unicode.scm (1.6), buffer.scm (1.11): Fix typo.

2001-10-04 12:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/load.scm (1.8), star-parser/parser.pkg (1.14),
	xml/xml.pkg (1.8), star-parser/load.scm (1.9), xml/load.scm (1.2):
	Integrate into MIT Scheme.

2001-10-04 12:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: parser.pkg (1.13), unicode.scm (1.5): Implement
	READ-UTF8-CODE-POINT and WRITE-UTF8-CODE-POINT.

2001-10-04 12:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/parser.pkg (1.12): Move MATCH-UTF8-CHAR-IN-ALPHABET
	into parser-buffer abstraction.

2001-10-04 12:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: string.c (9.45), string.c (9.46), string.c (9.47):
	Don't unnecessarily change the length of a string when altering its
	maximum length.

2001-10-04 11:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: buffer.scm (1.10), parser.pkg (1.11): Move
	MATCH-UTF8-CHAR-IN-ALPHABET into parser-buffer abstraction.

2001-10-04 11:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: unicode.scm (1.4), parser.pkg (1.10): Remove all
	references to parser buffers.

2001-10-04 11:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/buffer.scm (1.9): Optimize code to read and match
	characters from the buffer.

2001-10-02 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.54): Add binding for UNBIND-VARIABLE.

2001-10-01 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/redpkg.scm (1.20): Fix bug that was causing some variables
	to erroneously have multiple bindings.

2001-10-01 12:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.275): Leave attachment markers in the
	output message.  The result will be an exact copy of the buffer
	contents.

2001-10-01 01:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/compile.scm (1.3), xml/compile.scm (1.5): Update for
	new CREF.

2001-09-30 11:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.134): Make changes related to new cache
	mechanism.

2001-09-28 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.274): START-PROBE-FOLDER-THREAD is being
	called whenever a message is selected, but unfortunately if there
	was already a thread, it was being killed and a new one started,
	which generated network traffic on an IMAP folder.  Now it doesn't
	do anything if there is already a thread.

2001-09-28 22:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.188): Don't generate "Reading ..."
	messages unless actually going to the network.	Remove debugging
	code inadvertently left in last revision.

2001-09-28 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.133): Add disk cache for IMAP folders.

2001-09-28 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.187): Add disk cache for IMAP folders.

2001-09-28 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.186), load.scm (1.31): Add disk cache
	for IMAP folders.

2001-09-28 11:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.273): Implement new command M-x
	imail-file-message, which writes message to a file in a
	human-readable format.

2001-09-27 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.88), imail-file.scm (1.80), imail-rmail.scm
	(1.69), imail-top.scm (1.272), imail-umail.scm (1.50), load.scm
	(1.30): Change handling of file folders so that their type is
	determined solely by their contents rather than their names.

2001-09-27 20:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: redpkg.scm (1.19), forpkg.scm (1.10), conpkg.scm (1.14):
	Fix bug: package parent can sometimes be the symbol UNKNOWN.

2001-09-25 14:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/Makefile.in (1.1), Makefile.in (1.17), configure.in (1.4):
	CREF should now be included in the install directory.

2001-09-25 14:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/Clean.sh (1.4): Update to reflect changes to packaging.

2001-09-25 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Clean.sh (1.5), edwin/Clean.sh (1.3): Update to reflect
	changes to packaging.

2001-09-25 12:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (4.26): Remove four more definitions that are no
	longer bound to primitives.

2001-09-25 08:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.197): Fix bug: documentation string for M-x
	repeat-complex-command was referring to repeat-complex-command
	mode, which no longer exists.

2001-09-25 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.79): Eliminate calls to
	IMPLEMENTED-PRIMITIVE-PROCEDURE? which were causing trouble in the
	boot load.  This was due to rewriting of string support.

2001-09-25 01:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.70): Fix typo in previous change.

2001-09-25 01:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rinvex.scm (1.10): Eliminate use of DEFINE-METHOD
	syntactic keyword.

2001-09-25 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.69): Don't open-code any of the
	cell primitives.

2001-09-25 01:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.45), runtime.pkg (14.376): Extensive
	rewriting to make type-checking more uniform, and to eliminate
	cases where it was being performed twice.  Eliminate even more
	primitives, and speed up the procedures as much as possible.

2001-09-25 01:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.13): Split off unchecked character
	comparisons, for inclusion in "string.scm".

2001-09-25 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.16): Add type checking to all procedures,
	and rewrite some of the loops for speed.

2001-09-25 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrsyn.scm (1.5): Fix bug in previous change.

2001-09-25 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.16): The file "char.scm" must now be
	compiled early as it is integrated into "string.scm".

2001-09-25 01:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.35): Fix thinko.

2001-09-25 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: gconst.scm (4.25), make.scm (4.39): Eliminate a large number
	of inlined primitives.	Some of these are necessary due to changes
	in the runtime system.	Others are eliminated because I don't want
	their names reserved, or because it's inappropriate to inline them.

2001-09-25 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.26): Change LENGTH to be a Scheme procedure
	rather than a primitive.  New procedure now checks its argument for
	circularity and signals an error.

2001-09-25 01:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.14): Write private version of INTERN, which
	is needed early in the boot sequence before all of the necessary
	mechanism is initialized.

2001-09-25 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.116): Fix bugs in character-set
	compilation.  This code was confusing ASCII fixnums and characters,
	which works only in compiled code.

2001-09-25 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.24): Initialization sequence for RNG was
	depending on fact that REAL-TIME-CLOCK was inline-coded.

2001-09-24 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/calias.scm (1.21): Fix bug: EMACS-KEY-NAME wasn't able to
	handle a button as an argument.

2001-09-24 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.44), runtime.pkg (14.375), char.scm
	(14.12): Make ISO-8859-1 changes to string code, which involved
	rewriting all of the case-aware procedures.  Many of these were
	inherited from primitives, so it was necessary to write Scheme
	versions of the primitives.

2001-09-24 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.15): Extend alphabetic predicates to know
	about ISO-8859-1 letters.

2001-09-23 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.11): Eliminate use of all character
	primitives except for CHAR?, CHAR->INTEGER, and INTEGER->CHAR.	It
	is probably faster to write them in Scheme.
	
	Extend CHAR-UPCASE and CHAR-DOWNCASE to know about ISO-8859-1
	letters.

2001-09-23 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrsyn.scm (1.4): Add ISO-8859-1 syntax to standard
	table.

2001-09-23 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.11): Update copyright statement.

2001-09-21 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.60): Add prompt history for M-x
	shell-command.

2001-09-20 22:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.274): Add missing variable exports.

2001-09-20 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.47): Put up message while generating
	summary buffer.  Use fixnum arithmetic here to speed things up
	slightly.

2001-09-20 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.46): To each message shown in a
	summary buffer, attach a mark pointing at the line on which the
	message is shown.  Use this in the code that maps from messages to
	marks, changing it from (slow) linear time in the number of
	messages to constant time.

2001-09-20 13:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.45): Fix problem with
	IMAIL-SUMMARY-MATCH-LINE: messages with malformed dates were not
	being matched.

2001-09-14 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.271): M-x imail-sort-by-subject should do
	a case-insensitive sort.

2001-09-14 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.270): Add key binding for M-x
	imail-sort-by-arrival.

2001-09-14 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.269), todo.txt (1.132): Implement
	folder-sorting commands.

2001-09-14 13:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.146), imail-summary.scm (1.44): Change
	names: new functionality is not a permutation but an order.

2001-09-13 22:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.145), imail-file.scm (1.79),
	imail-imap.scm (1.185), imail-summary.scm (1.43), load.scm (1.29):
	Add mechanism to permute the message order of a folder.

2001-09-09 20:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.10): Work around bug in "Microsoft
	Outlook IMO, Build 9.0.2416 (9.0.2910.0)" -- it sends documents of
	type application/octet-stream with embedded hard line breaks, which
	is illegal according to RFC 2045, page 20:
	
		Since the canonical representation of media types other
	than
		text do not generally include the representation of line
		breaks as CRLF sequences, no hard line breaks (i.e. line
		breaks that are intended to be meaningful and to be
	displayed
		to the user) can occur in the quoted-printable encoding of
		such types.

2001-08-22 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookprm.c (1.16): Fix problem with multi-line primitive
	documentation.

2001-08-20 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.34), cref/conpkg.scm (1.13),
	cref/object.scm (1.14), cref/redpkg.scm (1.18), cref/triv.pkg
	(1.7): More changes to .pkd files: now the information about
	loading and initialization is separated from the information about
	environments and bindings.  The load/initialization sequence as
	written in the .pkg file is preserved in the .pkd file.

2001-08-19 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.33), cref/conpkg.scm (1.12),
	cref/object.scm (1.13), cref/redpkg.scm (1.17), cref/triv.pkg
	(1.6): Change .pkd file to have clearly defined exports and imports
	that directly correspond to those written by the programmer in the
	.pkg file.  This eliminates the duplicate links that were present
	in the previous design.

2001-08-18 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/make.scm (1.8), win32/win32.pkg (1.13),
	compiler/base/make.scm (4.113): Add additional information to .pkd
	file to support automatic evaluation of package-initialization
	expressions.  Major problems cropped up with package extensions,
	which necessitated some redesign of CREF.

2001-08-18 00:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.32), cref/make.scm (1.23), cref/conpkg.scm
	(1.11), cref/object.scm (1.12), cref/redpkg.scm (1.16),
	cref/triv.pkg (1.5), 6001/6001.pkg (1.12), 6001/make.scm (15.32):
	Add additional information to .pkd file to support automatic
	evaluation of package-initialization expressions.  Major problems
	cropped up with package extensions, which necessitated some
	redesign of CREF.

2001-08-17 09:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.31), compiler/base/make.scm (4.112),
	cref/make.scm (1.22), edwin/make.scm (3.111), imail/load.scm
	(1.28), rcs/load.scm (1.3), sf/make.scm (4.38), sos/load.scm (1.7),
	win32/make.scm (1.7): Rename PACKAGE/SYSTEM-LOADER to
	LOAD-PACKAGE-SET.  That will allow us to have an operation named
	UNLOAD-PACKAGE-SET.

2001-08-17 08:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: packag.scm (14.31), runtime.pkg (14.374), make.scm
	(14.72): Rename PACKAGE/SYSTEM-LOADER to LOAD-PACKAGE-SET.  That
	will allow us to have an operation named UNLOAD-PACKAGE-SET.

2001-08-17 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/win32.sf (1.5): Update for changes to package system.

2001-08-16 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: triv.pkg (1.2), triv.pkg (1.3), triv.pkg (1.4): Change
	"parent-name" field of package description to contain the names of
	every ancestor of the package.	This is necessary so that we can
	replace the use of ".glo" files with ".pkd" files.

2001-08-16 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/Clean.sh (1.3): No longer needed.

2001-08-16 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/redpkg.scm (1.15): Eliminate use of ".glo" files; ".pkd"
	files have all the information needed.

2001-08-16 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: cref.pkg (1.10), redpkg.scm (1.14), toplev.scm (1.15):
	Eliminate use of ".glo" files; ".pkd" files have all the
	information needed.

2001-08-16 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/Clean.sh (1.6): Update to correspond to packaging changes.

2001-08-16 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.30), cref/conpkg.scm (1.10): Change
	"parent-name" field of package description to contain the names of
	every ancestor of the package.	This is necessary so that we can
	replace the use of ".glo" files with ".pkd" files.

2001-08-16 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: C/compiler.sf (1.7), alpha/compiler.sf (1.7),
	bobcat/compiler.sf (1.19), i386/compiler.sf (1.13),
	mips/compiler.sf-big (1.9), mips/compiler.sf-little (1.9),
	spectrum/compiler.sf (1.19), vax/compiler.sf (1.10): Synchronize
	"compiler.sf" on all the back ends.

2001-08-16 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.26), compiler/machines/i386/compiler.sf (1.12):
	Don't use ACCESS to reference CREF/GENERATE-TRIVIAL-CONSTRUCTOR. 
	It's now exported to the global environment.

2001-08-14 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/clean.sh (1.3), runtime-check/Clean.sh (1.2): Implement
	completely new format for compiled package descriptions.  Old
	format was code to build the packages and load files into them. 
	New format is a summary description of the packages, which is
	interpreted at run time to provide the same functionality.
	
	The purpose of this change is to support uninstallation and
	replacement of packages.  The new compiled package descriptions are
	general enough for this purpose.

2001-08-14 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/Makefile.in (1.2), sos/Makefile.in (1.2),
	runtime-check/Setup.sh (1.4): Implement completely new format for
	compiled package descriptions.	Old format was code to build the
	packages and load files into them.  New format is a summary
	description of the packages, which is interpreted at run time to
	provide the same functionality.
	
	The purpose of this change is to support uninstallation and
	replacement of packages.  The new compiled package descriptions are
	general enough for this purpose.

2001-08-14 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.sf (1.11), rcs/compile.scm (1.3),
	imail/compile.scm (1.12), sos/compile.scm (1.4): Implement
	completely new format for compiled package descriptions.  Old
	format was code to build the packages and load files into them. 
	New format is a summary description of the packages, which is
	interpreted at run time to provide the same functionality.
	
	The purpose of this change is to support uninstallation and
	replacement of packages.  The new compiled package descriptions are
	general enough for this purpose.

2001-08-14 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/sf.sf (4.9), cref/triv.con (1.6), cref/triv.ldr (1.5),
	edwin/edwin.sf (1.25), edwin/make.scm (3.110), 6001/6001.sf (1.11):
	Implement completely new format for compiled package descriptions. 
	Old format was code to build the packages and load files into them.
	 New format is a summary description of the packages, which is
	interpreted at run time to provide the same functionality.
	
	The purpose of this change is to support uninstallation and
	replacement of packages.  The new compiled package descriptions are
	general enough for this purpose.

2001-08-14 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: conpkg.scm (1.9), cref.pkg (1.9), cref.sf (1.13), make.scm
	(1.21), object.scm (1.11), toplev.scm (1.14), triv.pkg (1.1):
	Implement completely new format for compiled package descriptions. 
	Old format was code to build the packages and load files into them.
	 New format is a summary description of the packages, which is
	interpreted at run time to provide the same functionality.
	
	The purpose of this change is to support uninstallation and
	replacement of packages.  The new compiled package descriptions are
	general enough for this purpose.

2001-08-14 22:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dragon4.scm (1.15), list.scm (14.25), make.scm (14.71),
	packag.scm (14.29), runtime.pkg (14.373), runtime.sf (14.15),
	vector.scm (14.16), version.scm (14.200): Implement completely new
	format for compiled package descriptions.  Old format was code to
	build the packages and load files into them.  New format is a
	summary description of the packages, which is interpreted at run
	time to provide the same functionality.
	
	The purpose of this change is to support uninstallation and
	replacement of packages.  The new compiled package descriptions are
	general enough for this purpose.

2001-08-13 21:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookup.c (9.65): Add optimization to link_variables so
	that it does nothing if the variables are already linked.

2001-08-10 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: etc/comcmp.scm (1.7), machines/bobcat/dassm1.scm
	(4.20), machines/i386/dassm1.scm (1.10), machines/mips/dassm1.scm
	(1.5), machines/spectrum/dassm1.scm (4.20): Redesign compiled-code
	debugging information so that it is keyed.  The key in the .com
	file and the key in the .bci file must match, or the .bci file will
	be ignored.

2001-08-10 13:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Stage.sh (1.2): Fix bug: "${S}/*" -> "${S}"/*.

2001-08-10 13:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.39), runtime/infstr.scm (1.11),
	runtime/infutl.scm (1.65), runtime/runtime.pkg (14.372),
	compiler/base/asstop.scm (1.12), compiler/base/toplev.scm (4.60),
	compiler/base/make.scm (4.111): Redesign compiled-code debugging
	information so that it is keyed.  The key in the .com file and the
	key in the .bci file must match, or the .bci file will be ignored.

2001-08-10 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.14): Fix type error.

2001-08-10 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.92): Make sure that value of evaluating
	definition is the name being defined.

2001-08-08 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/disload.scm (1.9), 6001/edextra.scm (1.33),
	swat/scheme/load.scm (1.4): Replace usage of ENVIRONMENT-LINK-NAME
	with new LINK-VARIABLES.

2001-08-08 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: conpkg.scm (1.8), make.scm (1.20), redpkg.scm (1.13):
	Replace usage of ENVIRONMENT-LINK-NAME with new LINK-VARIABLES. 
	Extend package-file language to allow linking variables with
	different names.

2001-08-08 23:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/cref.pkg (1.8): Fix packaging error.

2001-08-08 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: global.scm (14.53), make.scm (14.70), uerror.scm
	(14.48): Replace usage of ENVIRONMENT-LINK-NAME with new
	LINK-VARIABLES.
	
	This change requires microcode 14.5 or later.

2001-08-06 21:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.89), bchgcl.c (9.53), bintopsb.c (9.73),
	cmpint.c (1.94), fasdump.c (9.65), fasload.c (9.90), gccode.h
	(9.58), gcloop.c (9.48), lookprm.c (1.15), lookup.c (9.64),
	lookup.h (9.55), psbmap.h (9.45), psbtobin.c (9.59), purify.c
	(9.60), sdata.h (9.38), trap.h (9.48), types.h (9.38): Implement
	primitive to allow linking variables that have different names. 
	(Previously, linked variables were required to have the same name.)
	 This requires a major redesign of the cache data structures, and
	since the garbage collector knows about these structures, all of
	the garbage-collector files are affected too.  The new data
	structures have slightly different space requirements: a cache with
	no references uses one word less than previously, while a cache
	with references uses three words more than previously (independent
	of the number of references).
	
	This change requires Runtime 14.190 or later.

2001-08-05 20:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.61): Fix bug: news posting hasn't worked since
	the MIME attachment changes went in some time ago.

2001-08-03 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookup.c (9.63): Fix bugs in unbind_variable.

2001-08-03 22:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.20): Fix formatting of environments.

2001-08-03 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.371), uenvir.scm (14.41), urtrap.scm
	(14.6), version.scm (14.199): Rewrite interpreter-environment
	abstraction to account for new primitive that unbinds variables. 
	This works with the old microcode.

2001-08-02 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.181): Update version to reflect changes
	to variable reference.

2001-08-02 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookup.c (9.62): In-line code flush_cache, which had
	one reference.

2001-08-02 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: lookprm.c (1.14), lookup.c (9.61), lookup.h (9.54),
	sdata.h (9.37): Implement unlink_variable and associated primitive,
	which is not yet tested.
	
	Also, more cleanups to "lookup.c", particularly in code that
	accesses cache reference lists.  Increased abstraction in this area
	is being prompted by potential design changes to allow linking
	variables with different names.

2001-08-02 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/trap.h (9.47): Eliminate unused TRAP_RECACHE.  Add
	updated comment explaining where TRAP_UNBOUND is allowed to occur.

2001-07-31 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sdata.h (9.36): Don't access a cache value as a cell.

2001-07-31 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/lookup.c (9.60): Simplify logic in a few places.

2001-07-30 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.105), cmpint.c (1.93), debug.c (9.53),
	extern.h (9.60), fasload.c (9.89), hooks.c (9.60), interp.c (9.91),
	lookprm.c (1.13), lookup.c (9.59), lookup.h (9.53), object.h
	(9.51), os2.h (1.8), scode.h (9.27), sdata.h (9.35), trap.h (9.46),
	utils.c (9.79): Completely rewrite the variable-reference code. 
	New design is considerably simpler, having discarded all the legacy
	code from the Butterfly.  Furthermore, two hacks to speed up the
	interpreter, caching of variable locations and in-line variable
	reference, have been removed.  This makes the interpreter slower,
	but has no effect on compiled code, and has several important
	benefits.  One benefit is that we can now implement undefine.
	
	New design allows ENVIRONMENT-LINK-NAME to link to a variable that
	is already bound (previous signalled an error in this case).
	
	Eliminate "in-line" variable references in the interpreter.  All
	reference machinery is now defined in "lookup.c".
	
	Define THE_GLOBAL_ENV and THE_NULL_ENV, and predicates to detect
	them.  Eliminate GO_TO_GLOBAL and END_OF_CHAIN definitions.  Latter
	was a name conflict under OS/2.  Change definition of ENVIRONMENT_P
	so that it is false for THE_NULL_ENV.
	
	Define lots of macros to provide abstract access to the data
	structures used for variable references.  Change terminology, so
	that instead of "trap extension" we now use "cache", and so on for
	the substructures of the cache.
	
	Add "guards" to allow .h files to be loaded more than once.
	
	Remove variable-access procedures from "extern.h"; new procedures
	are now defined in "lookup.h".
	
	Eliminate all unused trap kinds.

2001-07-28 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/makegen.scm (1.3): When generating
	dependencies, pass -DMIT_SCHEME to compiler.

2001-07-21 01:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: kmacro.scm (1.43), comred.scm (1.122), editor.scm
	(1.252), make.scm (3.109): Fix problem: errors during
	keyboard-macro execution were leaving the editor in the command
	reader that was spawned to execute the keyboard macro, rather than
	returning to the reader that was in control when the keyboard-macro
	execution was initiated.
	
	Some of the keyboard-macro state was being mismanaged by
	unnecessary calls to KEYBOARD-MACRO-DISABLE.  This was exacerbated
	because KEYBOARD-MACRO-DISABLE was setting
	*KEYBOARD-MACRO-EXECUTING?* to #F when it should have been left
	alone.

2001-07-20 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.184): Change UPDATE-IMAP-FOLDER-LENGTH!
	back to its original design.  The bug I was seeing had nothing to
	do with this code.

2001-07-20 21:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.183): Change UPDATE-IMAP-FOLDER-LENGTH!
	so that it always signals a modification event.

2001-07-19 14:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: version.scm (14.197), version.scm (14.198): Update for
	post-release changes.

2001-07-19 14:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: pardec.scm (4.12), make.scm (4.37): Fix bug: when multiple
	USUAL-INTEGRATIONS declarations are given, the excluded names
	should be the union of all of the declarations, but instead were
	the intersection.  This situation arises when using COMPILE-FILE,
	which forces an additional USUAL-INTEGRATIONS declarations on each
	file.

2001-07-18 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2sock.c (1.18): Fix typo.  Supply definition for
	(surprisingly) missing INADDR_LOOPBACK.

2001-07-18 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2fs.c (1.14): Fix typo.

2001-07-18 21:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.28): A few more tweaks to get this
	working right.

2001-07-18 20:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntsock.c (1.11): Fix typo.

2001-07-18 20:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/: makefile (1.27), makefile.wcc (1.17): Disable
	crypto and gdbm support by default, since it relies on libraries
	not commonly available.

2001-07-18 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.26): Add code for using Microsoft's
	assembler.

2001-07-18 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.25): Update to have hand-written
	dependencies as does the watcom makefile.

2001-07-18 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.196): Change version for release 7.5.17.

2001-07-16 22:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.30): Fix name of WIN32-NAMED-PIPE, which
	had underscore instead of hyphen.  Also add alias FILE-SOFT-LINK?.

2001-07-16 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: compile.scm (1.4), ed-ffi.scm (1.3), test-parser.scm (1.5),
	xml.pkg (1.6), xml-output.scm (1.1), xml.pkg (1.7): Add code to
	write XML structures.

2001-07-16 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.10): Fix a number of bugs that were
	revealed during testing of the output code.

2001-07-16 14:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.9): Tweak format of !ELEMENT content type
	to be a little easier to disassemble.

2001-07-16 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-struct.scm (1.5), xml.pkg (1.5): Delete now-unused
	entity-reference structures.

2001-07-15 22:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.36): Must unblock all signals at start.	A
	recent example that has caused problems is that GNOME can sometimes
	cause Scheme to be started with SIGCHLD blocked.

2001-07-14 07:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/compile.scm (1.3): Use new parser/matcher macro environments.

2001-07-14 07:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml.pkg (1.4), xml-struct.scm (1.4): Export type
	descriptors for each of the XML data structure types.

2001-07-14 07:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.14), parser.pkg (1.9), parser.scm
	(1.17), shared.scm (1.9), load.scm (1.7): Add environment mechanism
	so that parser/matcher macros from one program don't interfere with
	those from another.

2001-07-12 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.52): Duh; DEFINE-STRUCTURE has one
	distinguished expression, not two.

2001-07-12 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.51): Add indentation rule for
	DEFINE-STRUCTURE.  I think maybe the standard indentation for
	definitions isn't right.

2001-07-12 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.8): A bunch of simple edits resulting from
	reading over the code.

2001-07-12 01:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/test-parser.scm (1.4): Rename RUN-VALIDITY-TESTS to
	RUN-XML-TESTS, and change it to run all the tests in the xmltest
	directory.

2001-07-11 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/unicode.scm (1.3): Fix some bugs.

2001-07-11 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/ed-ffi.scm (1.2): Update to use new Unicode support in the
	parser language.  This should improve the conformance.

2001-07-11 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: compile.scm (1.2), parser-macro.scm (1.4), xml.pkg (1.3),
	xml-chars.scm (1.1), xml-parser.scm (1.7): Update to use new
	Unicode support in the parser language.  This should improve the
	conformance.

2001-07-11 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: parser.pkg (1.8), unicode.scm (1.2): Flesh out
	unicode support.  Fix bugs.

2001-07-11 18:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/ed-ffi.scm (1.3): Add unicode support.

2001-07-11 17:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: parser.pkg (1.7), compile.scm (1.2), load.scm
	(1.6), matcher.scm (1.13), unicode.scm (1.1): Add unicode support.

2001-07-10 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: buffer.scm (1.8), load.scm (1.5), parser.pkg (1.6):
	New procedure PARSER-BUFFER-REF.

2001-07-10 15:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.6): Reorganize for presentation.

2001-07-10 13:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: parser-macro.scm (1.3), test-parser.scm (1.3),
	xml-parser.scm (1.5): Another round of changes.  Now passes all of
	the valid tests, and most of the not-well-formed tests.

2001-07-10 01:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: parser-macro.scm (1.2), test-parser.scm (1.2), xml.pkg
	(1.2), xml-parser.scm (1.4), xml-struct.scm (1.3): Extensive
	reworking to get entity references done more or less right.  There
	remains a problem with recursive entity expansion -- there is a
	mismatch between the tests and my reading of the specification.

2001-07-10 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/matcher.scm (1.12): Add COMPLETE keyword.

2001-07-09 00:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: test-parser.scm (1.3), parser.scm (1.16): Rename
	ELEMENT-TRANSFORM to MAP.

2001-07-08 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.182): Change DISCONNECT-FOLDER to close
	the connection immediately, rather than deferring.  This is what
	the end-user expects to see happen.

2001-07-06 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/test-parser.scm (1.1): Initial revision.

2001-07-06 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.155): When file is written for the first
	time, mark the buffer as having been backed up.

2001-07-06 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: compile.scm (1.1), ed-ffi.scm (1.1), load.scm (1.1),
	parser-macro.scm (1.1), xml.pkg (1.1), xml-parser.scm (1.3),
	xml-struct.scm (1.2): Package the code.  Move parser macros to
	their own file so that they can be loaded during compilation.
	
	Restructure the top-level parser to allow passing the DTD down to
	the element parser for entity expansion.
	
	Implement attribute-value normalization.
	
	Add restrictions required for rejection of non-wf documents: no
	"--" in comments; no duplicate attribute names.
	
	Change names of DTD structures to reflect their keywords.
	
	Fix various minor bugs, discovered either by the test suite or by
	the compiler.

2001-07-05 16:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/: xml-parser.scm (1.2), xml-struct.scm (1.1): Move data
	structures to separate file.

2001-07-05 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* xml/xml-parser.scm (1.1): Initial revision.

2001-07-05 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/buffer.scm (1.7): Fix typo.

2001-07-02 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.11), parser.scm (1.15): Don't lift
	Scheme expressions up to the top of the procedure; evaluate them in
	place.	Eliminate DEFAULT in favor of new VALUES.

2001-07-02 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.42): Fix bug: pretty printer was getting
	SIGSEGV when printing very deeply nested named let.

2001-07-02 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.10), parser.scm (1.14), parser.pkg
	(1.5), load.scm (1.4): Completely reorganize the language
	preprocessors, so that they are no longer monolithic procedures. 
	Also lay the code out differently so that it is broken into two
	major segments: the preprocessor and the code generator.

2001-07-02 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.8): Fix bug: unfinished change to
	BACKTRACK-TO.

2001-07-02 08:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.9), parser.scm (1.13), shared.scm
	(1.7): Replace WITH-CURRENT-POINTER and NO-POINTERS with new
	procedure CALL-WITH-UNKNOWN-POINTER.  Change all references from
	"pointers" to "pointer", since it's better to think of this as a
	single pointer.  (The delayed backtracking feature is an
	implementation detail, so it shouldn't be reflected in the name.) 
	Rename NEW-BACKTRACK-POINTER to BACKTRACK-TO.  Rename
	CURRENT-POINTER to POINTER-REFERENCE.

2001-07-02 01:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.8), parser.scm (1.12), shared.scm
	(1.6): Rework handling of the pointers.  There were some subtle
	bugs in the implementation that could have caused incorrect code
	generation.  This code looks good but is still a bit confusing; I
	may not have it right yet.  This code isn't yet tested.

2001-07-01 21:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.77): Implement new primitive
	X-SET-DEFAULT-FONT.

2001-07-01 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xcom.scm (1.18), edwin.pkg (1.273): Add new command M-x
	set-default-font.

2001-07-01 21:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (11.13): Restructure crypto, gdbm, and
	curses tests to depend on existence of appropriate header files as
	well as the library files.  The presence of the library file is no
	guarantee that we have the headers.

2001-06-30 02:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: parser.scm (1.11), matcher.scm (1.7), load.scm
	(1.3): Add ability to specify macros that are symbols rather than
	forms.	These expand to fixed parser sequences.

2001-06-29 23:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.6), parser.pkg (1.4), parser.scm
	(1.10), shared.scm (1.5), load.scm (1.2): Add WITH-POINTER to both
	parser and matcher languages.  Also implement macros for both
	languages.

2001-06-29 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/buffer.scm (1.6): Make sure that line number is
	properly updated.

2001-06-29 01:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: buffer.scm (1.5), ed-ffi.scm (1.2): * Track the
	line number of the current buffer position, so that error  
	messages can refer to the line.  Change representation of buffer  
	pointers to include the line number.  Add operation to generate a  
	string that shows the line number and character number of either a 
	 given pointer or the current position.
	
	* Eliminate DECREMENT-PARSER-BUFFER-POINTER, which was unused and  
	makes implementing the line number more difficult.
	
	* Add -NO-ADVANCE versions of procedures that match single
	characters.
	
	* Change terminology: the index of the current character in the
	buffer	 is called a "position".  The word "pointer" is reserved to
	refer to   pointer objects that are handed to the users, which
	themselves refer   to positions.

2001-06-29 01:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: buffer.scm (1.2), parser.pkg (1.3), buffer.scm
	(1.3), buffer.scm (1.4): * Track the line number of the current
	buffer position, so that error	 messages can refer to the line. 
	Change representation of buffer   pointers to include the line
	number.  Add operation to generate a   string that shows the line
	number and character number of either a   given pointer or the
	current position.
	
	* Eliminate DECREMENT-PARSER-BUFFER-POINTER, which was unused and  
	makes implementing the line number more difficult.
	
	* Add -NO-ADVANCE versions of procedures that match single
	characters.
	
	* Change terminology: the index of the current character in the
	buffer	 is called a "position".  The word "pointer" is reserved to
	refer to   pointer objects that are handed to the users, which
	themselves refer   to positions.

2001-06-26 21:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: parser.scm (1.9), matcher.scm (1.5): Eliminate
	compiler warnings.

2001-06-26 21:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/parser.scm (1.8): Fix code-generation bug in MATCH
	element.

2001-06-26 19:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/parser.scm (1.7): Fix a couple of code-generation
	bugs.

2001-06-26 19:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.4): Add some more optimizers.

2001-06-26 17:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: parser.scm (1.5), parser.scm (1.6): Fix two
	compiler warnings.

2001-06-26 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.4), parser.scm (1.4): Lots of hair
	to allow explicit character-set specifications to be compiled at
	load time rather than at run time.

2001-06-26 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: matcher.scm (1.3), parser.scm (1.3), shared.scm
	(1.3): Lots of hair to allow explicit character-set specifications
	to be compiled at load time rather than at run time.

2001-06-26 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: parser.scm (1.2), matcher.scm (1.2): Change name of
	language-shifting expression to SEXP.

2001-06-26 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/test-parser.scm (1.2): Must attempt to parse number
	before attempting identifier.  Otherwise, the number's sign might
	be parsed as an identifier.

2001-06-26 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/shared.scm (1.2): Fix problem with optimizer: needed
	to add notion of default rules that are used when a more specific
	pattern isn't available.  Also, generalize
	OPTIMIZE-GROUP-EXPRESSION so that it can be used by VECTOR-APPEND.

2001-06-26 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/parser.pkg (1.2): Add missing bindings.

2001-06-26 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/ed-ffi.scm (1.1): Initial revision.

2001-06-26 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* star-parser/: buffer.scm (1.1), compile.scm (1.1), load.scm
	(1.1), matcher.scm (1.1), parser.pkg (1.1), parser.scm (1.1),
	shared.scm (1.1), synchk.scm (1.1), test-parser.scm (1.1): Initial
	revision.

2001-06-18 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.50): Define SCHEME-INDENT-METHOD to simplify
	definition of indentation.

2001-06-16 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.181): Don't attempt to set arbitrary
	flags unless the server says it's OK.

2001-06-15 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rgxcmp.scm (1.115), runtime.pkg (14.370): Fix bug:
	regular-expression compiler is breaking the character-set
	abstraction.

2001-06-15 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: chrset.scm (14.13), runtime.pkg (14.369), runtime.sf
	(14.14), string.scm (14.43), symbol.scm (1.5), unpars.scm (14.48):
	Change representation of character sets so that they do not satisfy
	STRING?.  Unfortunately, this requires a complete recompilation of
	the system, since the primitives SUBSTRING-FIND-NEXT-CHAR-IN-SET
	and SUBSTRING-FIND-PREVIOUS-CHAR-IN-SET were being hard-coded by
	the syntaxer.

2001-06-15 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (4.24): Don't integrate the primitives
	SUBSTRING-FIND-NEXT-CHAR-IN-SET and
	SUBSTRING-FIND-PREVIOUS-CHAR-IN-SET.

2001-06-11 21:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.268): Start the folder-probe thread only
	when the folder is ONLINE, and stop the thread when the folder is
	OFFLINE.  Make sure that the buffer is disassociated from it's
	folder when the buffer is killed.

2001-06-11 20:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.267), todo.txt (1.131): Start the
	folder-probe thread only when the folder is ONLINE, and stop the
	thread when the folder is OFFLINE.  Make sure that the buffer is
	disassociated from it's folder when the buffer is killed.

2001-06-11 20:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.144), imail-file.scm (1.78),
	imail-imap.scm (1.180), imail-rmail.scm (1.68), imail-umail.scm
	(1.49): Change OPEN-RESOURCE and CLOSE-RESOURCE so that all of
	their behavior is pushed down into the type-dependent modules. 
	(Previously, they had some type-independent code.)  This, plus one
	explicit call, now means that the STATUS modification event is now
	consistently signalled whenever the connection status changes.

2001-06-08 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.368): Forgot to export
	HANDLE-SUBPROCESS-STATUS-CHANGE to the socket code.

2001-06-08 20:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.64): INPUT-BUFFER/READ-SUBSTRING must use
	generic arithmetic for indexes into the substring, because it might
	be an xstring that is larger than the fixnum range.

2001-06-08 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.39): READ-SUBSTRING! can return less than
	the requested number of bytes.	Deal with it.

2001-06-07 13:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.79): VC's state is wiped out when the workfile's
	buffer has it's mode changed.  Use new event
	EVENT:SET-BUFFER-MAJOR-MODE to reset it at that time.

2001-06-07 13:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.219): LOAD-FIND-FILE-INITIALIZATION must be
	re-run when the buffer's pathname or major mode is changed.

2001-06-07 13:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.78): VC's state is wiped out when the workfile's
	buffer has it's mode changed.  Use new event
	EVENT:SET-BUFFER-MAJOR-MODE to reset it at that time.

2001-06-07 13:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.182): Add new event
	EVENT:SET-BUFFER-MAJOR-MODE.

2001-06-04 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.17): Fix bug: TCP-SERVER-CONNECTION-ACCEPT
	was blocking on the server socket, rather than registering it for
	management by select.

2001-06-04 15:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-browser.scm (1.8): When reverting buffer, preserve
	selected resource, marked resources, and expanded containers.  When
	initializing buffer, select first resource line.

2001-06-04 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.266), todo.txt (1.130): Select first
	unseen message when invoking M-x imail on a folder that is already
	online.

2001-06-04 13:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.87): Rename commands to match current Dired
	usage.

2001-06-04 13:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.265): Simplify usage of COPY-FOLDER.

2001-06-04 13:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.129): More new notes.

2001-06-04 13:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-browser.scm (1.7): Implement M-x
	imail-browser-do-copy.	Consolidate code used for copy and rename. 
	Write documentation strings for all commands and for the major
	mode.

2001-06-04 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.264): Simplify usage of COPY-FOLDER.

2001-06-04 13:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.143): Implement WITH-OPEN-RESOURCE.

2001-06-04 13:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.189): Fix minor wording problem in
	documentation string.

2001-06-03 02:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.86), imail-browser.scm (1.6), imail-top.scm
	(1.263), todo.txt (1.128): Change commands used to enter browser. 
	Now the primary command is M-x imail-browser-view-container (bound
	to ^ in all IMAIL buffers), which browses the container of the
	resource being viewed in the current buffer.  This command will
	prompt for a container URL if given a prefix argument.

2001-06-03 02:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.179): Fix bug: the container URL
	"imap://localhost/" had an associated "folder" URL with the same
	string representation.	This confused the URL interning mechanism,
	which uses the string rep as the key.  Consequently only one of the
	URLs existed.  Now, the "folder" is represented by
	"imap://localhost".

2001-06-02 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.188): When processing marked files in a Dired
	buffer, update screens after each file is processed so that the
	mark is appropriately removed.

2001-06-02 21:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.142), imail-file.scm (1.77),
	imail-imap.scm (1.178): Change CLOSE-RESOURCE so that second
	argument is required rather than optional.

2001-06-02 21:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.127): Associate a connection with an open IMAP
	container.  Add code to browser to guarantee that the resource is
	closed at appropriate times.

2001-06-02 21:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-browser.scm (1.5), imail-imap.scm (1.177):
	Associate a connection with an open IMAP container.  Add code to
	browser to guarantee that the resource is closed at appropriate
	times.

2001-06-02 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.126): [no log message]

2001-06-02 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.262): Change M-x imail-quit to use the new
	NO-DEFER? argument to CLOSE-RESOURCE.

2001-06-02 21:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.141), imail-imap.scm (1.176),
	imail-file.scm (1.76): Add optional argument NO-DEFER? to
	CLOSE-RESOURCE.  If this argument is true, it tells the operation
	that the resource must be closed immediately.  Otherwise, the
	operation may defer the closure.

2001-06-02 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.125): Add a few notes.

2001-06-02 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirunx.scm (1.13): Add commented-out stubs for commands to
	do file linking.

2001-06-02 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.67): Add logic to GET-X-DISPLAY to test for
	existence of X primitives, and to make sure that a display variable
	exists.  This is necessary so that Edwin will work on a system that
	doesn't have X support.

2001-06-02 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.218): PROMPT-FOR-DIRECTORY should not always
	perform PATHNAME-AS-DIRECTORY on its result; if the REQUIRE-MATCH?
	option isn't given, the result might not be a directory.  For
	example, Dired uses this prompt, and an input with a wildcard file
	part is permissible.

2001-06-02 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.187): Update doc string for dired-do-copy to
	match Emacs.

2001-06-02 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.272), dired.scm (1.186): Eliminate variable
	dired-copy-preserve-time which wasn't doing anything.

2001-06-02 11:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.29): New procedures HARD-LINK-FILE and
	SOFT-LINK-FILE.

2001-06-02 11:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: sfile.scm (14.27), sfile.scm (14.28): New procedures
	HARD-LINK-FILE and SOFT-LINK-FILE.

2001-06-02 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-browser.scm (1.4), imail.pkg (1.85): Implement
	marked files for D and R commands (stub for C command needs to be
	written).  Change name of x command to M-x
	imail-browser-do-flagged-delete to correspond to new name given
	corresponding Emacs dired command.

2001-06-02 01:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.261): In M-x imail-rename-folder and M-x
	imail-copy-folder, allow user to specify a container for the
	target.

2001-06-02 01:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.260): Add new procedure PROMPT-FOR-URL.

2001-06-01 21:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.16): Add optional HOST argument to
	OPEN-TCP-SERVER-SOCKET, and new procedures HOST-ADDRESS-ANY and
	HOST-ADDRESS-LOOPBACK.	This allows the user to specify the network
	interface(s) being listened to.

2001-06-01 21:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntsock.c (1.10): Provide missing htonl calls.

2001-06-01 21:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsock.c (1.28), os2sock.c (1.17): Provide missing
	htonl calls.

2001-06-01 21:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxsock.c (1.20): Oops, that should have been
	CREATE-TCP-SERVER-SOCKET.

2001-06-01 21:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntsock.c (1.9), os2sock.c (1.16), pruxsock.c (1.19),
	uxsock.c (1.27), uxsock.h (1.10): Implement new primitives to allow
	finer control over how TCP server sockets are configured:
	
	    HOST-ADDRESS-ANY
	    HOST-ADDRESS-LOOPBACK
	    CREATE_TCP_SERVER_SOCKET
	    BIND-TCP-SERVER-SOCKET
	    LISTEN-TCP-SERVER-SOCKET

2001-05-31 22:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.175), todo.txt (1.124): Defer closing
	of connection when it is the last connection open to a particular
	server.  This prevents a pattern of opening and closing that occurs
	when IMAIL starts up (due to probes performed prior to opening the
	folder).  It also allows the user to do completion in the folder
	space without occurring the same penalty.  The downside is that the
	connection remains open for about a minute after the user "closes"
	it, which will be remedied in a future revision.

2001-05-31 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.174): First draft of a mechanism to defer
	closing of connections.  This suffers from a fault: the background
	probe-folder thread is re-opening the connection while it is in the
	deferred state.

2001-05-31 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.251), edwin/notify.scm (1.20),
	imail/imail-top.scm (1.258), imail/imail-top.scm (1.259): Implement
	START-STANDARD-POLLING-THREAD and STOP-STANDARD-POLLING-THREAD to
	capture standard method of using background thread to poll for
	output or events.

2001-05-31 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.250): Add interrupt locking to
	REGISTER-INFERIOR-THREAD! and DEREGISTER-INFERIOR-THREAD!.  Change
	DEREGISTER-INFERIOR-THREAD! to delete the entry from the list of
	inferior threads.

2001-05-30 01:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.173): Change how connections are
	allocated; when looking for a connection for a folder, we'll now
	take over an existing compatible connection if it's not being used
	by another folder.  This will be useful after the next change,
	which will cause connections to stay open a short while after their
	last reference is dropped; when that happens, there will be open
	connections lying around that can usefully be adopted.

2001-05-29 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/cref.sf (1.12): Don't use LOAD-OPTION to load cref; it
	probably doesn't exist on the host system (outside of MIT), and
	this will cause an error if the user has MITSCHEME_INF_DIRECTORY
	set.

2001-05-29 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.172): Eliminate IMAP-FOLDER-N-MESSAGES in
	favor of FOLDER-LENGTH.

2001-05-29 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.171), todo.txt (1.123): Eliminate
	IMAP-FOLDER-N-MESSAGES in favor of FOLDER-LENGTH.

2001-05-29 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.140), imail-file.scm (1.75),
	imail-imap.scm (1.170), imail-browser.scm (1.3): Rename
	URL-IS-CONTAINER? to URL-CORRESPONDING-CONTAINER.  Eliminate
	requirement that the result be #F if the resource doesn't exist.

2001-05-29 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.169): Cache information returned by the
	IMAP LIST command.  This should help to reduce traffic on the wire.

2001-05-29 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.84): Don't use my private "$bscm" environment
	variable in public code.

2001-05-29 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/cref.sf (1.11): Don't use LOAD-OPTION to load cref; it
	probably doesn't exist on the host system (outside of MIT), and
	this will cause an error if the user has MITSCHEME_INF_DIRECTORY
	set.

2001-05-29 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.257): Change M-x imail so that it only
	runs M-x imail-get-new-mail if the folder status is OFFLINE.

2001-05-29 13:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.168): Restructure IMAP URLs so that each
	container URL has a corresponding folder URL.  The container URL
	inherits the components of the folder URL rather than keeping its
	own copies.  This sharing will be important when we add caching of
	the IMAP server's LIST info.

2001-05-27 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.167): In IMAP-MAILBOX-DELIMITER, use the
	probed root as the table key; previous strategy make no sense.

2001-05-27 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.166): Fix bug: IMAP-MAILBOX-DELIMITER was
	calling the LIST command on a mailbox with a trailing slash; now
	the slash is omitted.

2001-05-27 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.165): Cache result of URL-IS-CONTAINER?,
	to prevent going back to network each time it's needed.  This might
	not actually work, since the definition of URL-IS-CONTAINER?
	specifies that the corresponding mailbox must exist.

2001-05-27 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.122): Delete entries for things that are now
	implemented.

2001-05-27 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.121): Note problem that connection to IMAP
	server is being opened and closed too much.

2001-05-25 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.256): Fix error message of SELECTED-URL so
	that it makes more sense to the end user.

2001-05-25 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-browser.scm (1.2): Eliminate compiler warning.

2001-05-25 22:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.11), ed-ffi.scm (1.14), imail.pkg (1.83),
	imail-browser.scm (1.1), print.sh (1.9): Add first working draft of
	folder browser.

2001-05-25 22:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.255): Change IMAIL-DEFAULT-CONTAINER to
	use selected URL if any.  This sets default correctly in the folder
	browser when point is inside an expanded subfolder.

2001-05-25 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.254): Implement SELECTED-CONTAINER-URL.

2001-05-25 22:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.139): Change external representation of
	URL to use content name rather than presentation name.

2001-05-25 21:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.253): Fix indentation.

2001-05-25 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.138), imail-file.scm (1.74),
	imail-imap.scm (1.164), imail-top.scm (1.252): Cache CONTAINER-URL
	of every URL when it is created, so that the heirarchy can be
	quickly traversed.
	
	Rename URL-IS-SELECTABLE? as FOLDER-URL-IS-SELECTABLE?.
	
	Implement new operation URL-IS-CONTAINER?  which returns the
	equivalent container URL of a URL (which may be a folder URL).

2001-05-24 22:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.137), imail-file.scm (1.73),
	imail-imap.scm (1.163), imail-top.scm (1.251): Change noun "child",
	used to refer to something in a container, to "content".

2001-05-24 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.181): Generalize WITH-READ-ONLY-DEFEATED to
	accept anything that ->BUFFER can resolve to a buffer.

2001-05-24 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.162): Don't echo server's mailbox name to
	the user.

2001-05-24 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.185): Include full key bindings in mode help.

2001-05-24 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.161): Fix CONTAINER-URL-CONTENTS to
	return container URLs when appropriate.

2001-05-24 14:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.95): Fix bug in previous change: was using
	procedures that returned marks when I expected indexes.

2001-05-24 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.136): Add some more resource->URL
	reflectors.

2001-05-24 13:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.135), imail-file.scm (1.72),
	imail-imap.scm (1.160), imail-top.scm (1.250): Simplify meaning of
	CONTAINER-URL; it no longer does anything special for IMAP URLs. 
	Define new operation CONTAINER-URL-FOR-PROMPT that has the behavior
	that CONTAINER-URL used to.
	
	Implement new operation URL-CHILD-NAME which is now the complement
	to CONTAINER-URL.  These operations now return compatible halves of
	the URL, which may be recombined using MAKE-CHILD-URL to obtain the
	original URL.
	
	Change implementation of URL-PRESENTATION-NAME; it now just calls
	URL-CHILD-NAME, stripping a slash off the end if present.
	
	Clarify definition of URL-BASE-NAME.
	
	Revert CONTAINER-CONTENTS back to CONTAINER-URL-CONTENTS.  Maybe
	tomorrow I'll change my mind again.

2001-05-23 23:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.249): Regularize the names of the
	procedures that manage the selected container and selected URL. 
	Move these and SELECT-FOLDER to the same page.

2001-05-23 23:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.134): Change GET-MEMOIZED-RESOURCE to
	accept an optional argument specifying that it is an error if there
	is no associated resource.

2001-05-23 21:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.132), imail-core.scm (1.133): Rename
	the following server operations, then add methods to them to
	support containers as well as folders:
	
	    create-folder	=>	create-resource
	    delete-folder	=>	delete-resource
	    rename-folder	=>	rename-resource

2001-05-23 21:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.131), imail-file.scm (1.71),
	imail-imap.scm (1.159), imail-rmail.scm (1.67), imail-top.scm
	(1.248), imail-umail.scm (1.48): Rename the following server
	operations, then add methods to them to support containers as well
	as folders:
	
	    create-folder	=>	create-resource
	    delete-folder	=>	delete-resource
	    rename-folder	=>	rename-resource

2001-05-23 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.130): Add a handful of methods to allow
	containers to be used in place of container URLs in operations
	where it seems useful.

2001-05-23 20:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.247): Don't use history value as default
	for source of M-x imail-rename-folder and M-x imail-copy-folder.

2001-05-23 20:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.246): Fix a few minor bugs from the recent
	changes.

2001-05-23 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.129), imail-file.scm (1.70),
	imail-imap.scm (1.158), imail-rmail.scm (1.66), imail-top.scm
	(1.245), imail-umail.scm (1.47): Generalize folder operations:
	
		open-folder	=>	open-resource
		close-folder	=>	close-resource
		save-folder	=>	save-resource
	
	Add methods to each of these renamed operations so that they can
	handle containers.

2001-05-23 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.128), imail-file.scm (1.69),
	imail-imap.scm (1.157): Eliminate CONTAINER-URL-CONTENTS in favor
	of CONTAINER-CONTENTS.

2001-05-23 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.127), imail-file.scm (1.68),
	imail-imap.scm (1.156), imail-top.scm (1.244): Rename URL-CONTAINER
	to CONTAINER-URL to better reflect its meaning.

2001-05-23 09:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.126): Fix bug in previous change: the
	object being modified is the container, not the URL for the
	container.

2001-05-23 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.125), imail-file.scm (1.67),
	imail-imap.scm (1.155), imail-rmail.scm (1.65), imail-summary.scm
	(1.42), imail-top.scm (1.243), imail-umail.scm (1.46): Generalize
	implementations of properties and modification events so that they
	can be mixed in to arbitrary classes.  Simplify property
	implementation to use an alist.  This saves 4 words of memory,
	which is important for message objects.
	
	Create generalized resources, which are the referents of URLs.	Use
	these as the base for folders, and create a new container type.
	
	Change CREATE-FOLDER, DELETE-FOLDER, RENAME-FOLDER, and
	APPEND-MESSAGE to signal appropriate events to the container of the
	folders being manipulated.  This will allow folder browsers to
	automatically update themselves as their contents are changed.
	
	Add hooks to folder and container prompts, which allow the folder
	browser to use some of the standard server commands.  The browser
	can supply the appropriate URL string without prompting.
	
	Don't let M-x imail-copy-folder copy from a folder to itself.

2001-05-23 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.120): Note that RENAME-FOLDER must change the
	URL the target folder refers to.

2001-05-22 12:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.94): Implement WITHOUT-TEXT-CLIPPED.

2001-05-21 23:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.367): Duh.  Can't delete DOS pathname
	support; that is used by Win32 and OS/2.

2001-05-21 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.69): Duh.  Can't delete DOS pathname
	support; that is used by Win32 and OS/2.

2001-05-21 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntio.c (1.24): Fix longstanding bug: must send WM_PAINT
	after SCREEN_WRITE so that messages appear on screen even when no
	input is being read.

2001-05-21 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.28): Fix thinko in previous change.

2001-05-21 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.242): Fix bug: missing alternative in
	conditional was causing prompt to have random default value.

2001-05-18 16:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.154): Change IMAP-URL-SERVER-MAILBOX to
	accept container URLs and strip the trailing delimiter off of them.

2001-05-18 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.82): Add package for folder browser.

2001-05-17 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.41): Fix typo in previous change.

2001-05-17 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.241): Change M-x imail-delete-message to
	accept a prefix argument, which means to repeat just like
	imail-delete-forward.

2001-05-17 20:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.40): In REBUILD-IMAIL-SUMMARY-BUFFER,
	SELECTED-FOLDER can return #F, but the code wasn't allowing for
	that possibility.

2001-05-17 20:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.240): If ERROR? argument to
	SELECTED-FOLDER and SELECTED-MESSAGE is false, don't signal an
	error even if the associated property isn't bound.  The old
	behavior has caused too many problems in weird places, and has no
	real benefits.

2001-05-17 20:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.144): Implement RUN-BUFFER-HOOKS to capture
	code that runs the hooks list.	Fix potential problem by copying
	the hooks list.

2001-05-17 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.124): Eliminate legacy file URL protocol
	names.	These can only cause confusion when writing to output files
	that don't already exist.

2001-05-17 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.123), imail-file.scm (1.66),
	imail-imap.scm (1.153), imail-rmail.scm (1.64), imail-top.scm
	(1.239), imail-umail.scm (1.45): Eliminate MAKE-PEER-URL in favor
	of MAKE-CHILD-URL.

2001-05-17 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.152): Split the IMAP URL type into two
	types: one for IMAP folders, and the other for IMAP containers. 
	The two are distinguished solely by the form of their mailbox
	names: a trailing slash (or null mailbox) means it's a container,
	otherwise it's a folder.

2001-05-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.122), imail-file.scm (1.65),
	imail-imap.scm (1.151), imail-rmail.scm (1.63), imail-umail.scm
	(1.44), imail-util.scm (1.38): New operation
	CONTAINER-URL-CONTENTS.
	
	Reimplemented URL-IS-SELECTABLE? for file folders.  New
	implementation probes the file to determine if it is a known type.
	
	File-folder completion now only considers files of known type and
	directories.  It also doesn't consider "." and ".." directories.
	
	Code that mapped IMAP heirarchy delimiters was broken, although
	this caused no practical consequences.	It has been reimplemented
	to make it both correct and simpler.
	
	IMAP-folder completion used to probe subfolders of a folder to
	determine if a folder should have a "/" at the end.  This was
	wasteful of network bandwidth and had no practical consequences, so
	it has been changed to not do this.

2001-05-14 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.37): Restructure directory-reading code
	to clean up the interface a bit.

2001-05-12 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.121), imail-file.scm (1.64),
	imail-imap.scm (1.150), imail-rmail.scm (1.62), imail-top.scm
	(1.238), imail-umail.scm (1.43): * Implement container URLs, which
	are separate from folder URLs.	  These are implemented as
	directories for file-based folders.  IMAP    folders are also
	containers.
	
	* Eliminate URL-CONTAINER-STRING; now there is URL-CONTAINER that  
	returns a container URL.
	
	* Rename URL-SELECTABLE? to URL-IS-SELECTABLE?.
	
	* Eliminate "rmail" and "umail" protocols in favor of "file".  This
	  now covers both Rmail and unix-mail folders, as well as
	directories.	The actual file type is determined by probing the
	first few bytes of    the file for known patterns.  The names
	"rmail" and "umail" are now    treated as equivalent to "file" for
	upwards compatibility.
	
	* Change prompting code in front end so that it is possible to
	specify   that the returned folder satisfies URL-IS-SELECTABLE?. 
	Also add a   procedure to prompt for a container.

2001-05-12 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.217), edwin/print.scm (1.20),
	runtime/dosdir.scm (1.10), runtime/unxdir.scm (14.12),
	imail/imail-util.scm (1.36): Use new predicate DIRECTORY-PATHNAME?
	to replace various ad-hoc mechanisms previously used to detect the
	same thing.

2001-05-12 15:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.41), pathnm.scm (14.34), runtime.pkg
	(14.366), unxpth.scm (14.26): Implement DIRECTORY-PATHNAME?. 
	Change implementation of DIRECTORY-PATHNAME and FILE-PATHNAME to be
	host-specific.

2001-05-10 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.216): Minor code clean-up for
	FILENAME-COMPLETE-STRING.

2001-05-10 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.215): Simplify CATCH-FILE-ERRORS so that the
	error-handling procedure always gets the condition as an argument.

2001-05-10 14:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autosv.scm (1.34), dired.scm (1.184), fileio.scm (1.154),
	utils.scm (1.48), vc.scm (1.77): Simplify CATCH-FILE-ERRORS so that
	the error-handling procedure always gets the condition as an
	argument.

2001-05-10 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.63): Fix bug: don't merge name of default
	pathname into partial URL string.

2001-05-09 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.26): Fix bug: FILE-SYMBOLIC-LINK? is
	supposed to return the link contents if the result is true.  My
	rewrite returned #t in that case.

2001-05-09 22:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.196): Fix thinko in previous fix.

2001-05-09 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.183): Fix bug in M-x dired-create-directory:
	PROMPT-FOR-DIRECTORY recently changed so that it always returns the
	result as a directory pathname with no file part.  The code here
	was assuming that the name part was always present.

2001-05-09 14:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.195): In PROMPT-FOR-STRING-TABLE-NAME,
	verifier must no assume that STRING-TABLE-GET will return false
	value only when key isn't in table.

2001-05-09 13:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.120), imail-file.scm (1.62),
	imail-imap.scm (1.149): Add new procedure URL-SELECTABLE?.

2001-05-09 10:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.25): Implement FILE-REGULAR?.

2001-05-09 09:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.67), make.scm (14.68): Delete DOS stuff.

2001-05-08 23:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ntprm.scm (1.36), os2prm.scm (1.47), sfile.scm (14.24),
	unxprm.scm (1.61): Implement new procedures FILE-TYPE-DIRECT and
	FILE-TYPE-INDIRECT.  Several procedures in the OS-dependent files
	were identical for all operating-systems; move them to "sfile.scm".

2001-05-08 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntfs.c (1.27), ntfs.h (1.5), os2fs.c (1.13), osfs.h
	(1.10), prntfs.c (1.17), prosfs.c (1.16), uxfs.c (1.21): Implement
	new primitives FILE-TYPE-DIRECT and FILE-TYPE-INDIRECT.

2001-05-08 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.365): Delete DOS stuff.

2001-05-08 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.194): Fix problem: COMPLETE-INPUT-STRING
	should not return NO-MATCH when VERIFY-FINAL-VALUE fails on an
	exact match, because this match might not be the final value. 
	Instead, just do the verification and return the information to the
	caller.

2001-05-07 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.193): Change logic to retain REQUIRE-MATCH?
	option for later use when verifying values.

2001-05-07 14:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.192): Revert broken change to
	VERIFY-FINAL-VALUE.

2001-05-07 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.214): Change directory prompts to be more
	regular.

2001-05-07 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.27): Update version number to reflect changes.

2001-05-07 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.119): Add note about implementation of
	FOLDER-LENGTH for IMAP folders.  Remove note about URL-EXISTS?
	which is now implemented.

2001-05-07 14:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.119): Don't unmemoize a folder when
	URL-EXISTS? signals an error; it might be a transitory error.
	
	It's not obvious to me that we need to unmemoize here.	Maybe we
	should just delete the call to URL-EXISTS? altogether.

2001-05-07 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.237): VERIFY-FINAL-VALUE is always
	executed in a context that handles errors, so there's no need for
	us to do this.

2001-05-07 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.148): Change URL-EXISTS? to use the LIST
	command, and to filter out NOSELECT mailboxes.

2001-05-07 14:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.191): Attempt to get VERIFY-FINAL-VALUE to
	work correctly for completing reads.  It appears to be used for two
	different things; perhaps we need to redesign this.

2001-05-07 13:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/compile.scm (1.14): Compilations must use a PTY so that
	kill-compilation can work.

2001-05-04 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.118): URL-EXISTS? should not use IMAP STATUS
	command.

2001-05-03 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.27): Fix problem that crops up when
	compiling on OpenBSD.

2001-04-29 22:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: optiondb.scm (1.6), optiondb.scm (1.7): Fix bug: previous
	loader depended on MITSCHEME_INF_DIRECTORY being set.  I used to
	set this and didn't notice, but these days I don't set it.

2001-04-15 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* configure.in (1.3), microcode/configure.in (11.12): Add option to
	preserve timestamps when installing programs, if the install
	program supports it.

2001-04-15 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.236), todo.txt (1.117): Fix bug:
	toggling of raw headers and raw body should be more separate.

2001-04-15 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.116): Add item re M-x imail-toggle-header
	affecting body presentation.

2001-04-10 21:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.78): Revert previous change -- it's not so
	simple.

2001-04-10 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.77): Allow attachments to have MESSAGE
	type.

2001-04-10 21:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.235), todo.txt (1.115): Fix bug: must
	preserve MIME headers in forwarded messages, otherwise the
	encapsulated message won't be interpreted correctly by the
	receiver.

2001-04-10 20:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.76): Fix bug: header names are
	case-insensitive.

2001-04-10 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.21): Add call to tzset to initialize
	_timezone if building under cygwin.

2001-04-10 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (11.11): Add test for _timezone variable,
	needed for cygwin.  Change preference of timezone variables to this
	order: __timezone, _timezone, timezone.

2001-04-10 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.114): Add item about forwarded MIME messages. 
	Add note about possible fix for network wedging.

2001-04-09 09:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.113): Add suggestion from hal to allow sorting
	of summary buffer.

2001-04-03 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxio.c (1.46), version.h (11.180): Fix bug:
	examination of results from `poll' was ignoring file descriptors on
	which there were error conditions but no input.

2001-04-02 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.34): Always start the thread timer when
	there are any input registrations.  The timer is necessary even if
	no threads are currently running.

2001-03-21 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.195), edwin/make.scm (3.108): Update
	version to reflect recent changes.

2001-03-21 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: abbrev.scm (1.6), autold.scm (1.57), comman.scm (1.85),
	comtab.scm (1.72), debug.scm (1.56), modes.scm (1.34), modlin.scm
	(1.23), process.scm (1.59), rmail.scm (1.72), schmod.scm (1.49),
	sendmail.scm (1.75), xterm.scm (1.66): Change many references of
	SYMBOL->STRING to use SYMBOL-NAME instead.  These are all
	situations where copying the returned string is unnecessary and
	wasteful.

2001-03-21 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgutl.scm (14.19), gensym.scm (14.6), infstr.scm
	(1.10), infutl.scm (1.64), pp.scm (14.41), syntax.scm (14.33),
	uerror.scm (14.47), unpars.scm (14.47), unsyn.scm (14.21): Change
	many references of SYMBOL->STRING to use SYMBOL-NAME instead. 
	These are all situations where copying the returned string is
	unnecessary and wasteful.

2001-03-21 00:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.42), rgxcmp.scm (1.114): Fix typo.

2001-03-21 00:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.63), output.scm (14.23): Allow
	WRITE-SUBSTRING output-port operation to accept external strings.

2001-03-21 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgutl.scm (14.18), emacs.scm (14.29), infutl.scm
	(1.63), krypt.scm (1.12), ntprm.scm (1.35), os2graph.scm (1.18),
	os2prm.scm (1.46), rgxcmp.scm (1.113), strout.scm (14.15): Use
	SUBSTRING-MOVE! in preference to SUBSTRING-MOVE-LEFT! and
	SUBSTRING-MOVE-RIGHT!.

2001-03-21 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.41): Further optimize string-copying code.

2001-03-21 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.40): Fix typo.

2001-03-19 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.61): Minimize consing in
	READ-RMAIL-ATTRIBUTES-LINE.

2001-03-19 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.61), imail-rmail.scm (1.60),
	imail-umail.scm (1.42): Change file folders to store their messages
	in a vector rather than a list.  The linear-time lookup was killing
	performance on large folders.

2001-03-19 17:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.59): Slow down the progress messages a
	bit; the parsing is now fast enough that we were doing too much
	work updating the screen.

2001-03-19 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.35): Add DISCARD-CHARS and READ-STRING
	operations to xstring input port.  Change SKIP-TO-LINE-START to use
	DISCARD-CHARS.

2001-03-19 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.58): Fix problem: there's not
	necessarily a blank line between the alternate headers and the
	separator line.

2001-03-19 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.39): Add LENGTH member to external-string
	structure.  It turns out that it's important that fetching the
	length be fast.

2001-03-19 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.57): Fix thinko in previous change.

2001-03-19 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.34): Add support for DISCARD-CHAR
	operation.

2001-03-19 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.60), imail-rmail.scm (1.56),
	imail-umail.scm (1.41), imail-util.scm (1.33): Extend use of
	external-string storage to all file folders.  Don't pre-compute
	message headers; compute them on the fly from the external string
	when needed.

2001-03-19 14:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.234): Generalize IMAIL-UI:PROGRESS-METER
	to be able to show progress when total number of items isn't known.
	 Memoize value computed by COUNT-UNSEEN-MESSAGES, to speed up
	navigation in very large folders.

2001-03-19 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.81), imail-core.scm (1.118): Move
	MESSAGE-TIME into core.

2001-03-18 01:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.55): Change implementation of Rmail
	folders to keep a copy of the Rmail file in an external string, and
	to refer to the message bodies using index pairs into the string. 
	This change should allow Scheme to handle much larger Rmail
	folders.

2001-03-18 01:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.53), imail-rmail.scm (1.54),
	imail-util.scm (1.32), load.scm (1.26): Change implementation of
	Rmail folders to keep a copy of the Rmail file in an external
	string, and to refer to the message bodies using index pairs into
	the string.  This change should allow Scheme to handle much larger
	Rmail folders.

2001-03-16 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.271), sendmail.scm (1.74), snr.scm (1.60):
	Rewrite to generate the finished message into a temporary file
	rather than a buffer.  This allows the sending of attachments that
	are too large to fit into memory.
	
	Also rework the attachment interface slightly to simplify the
	choices presented to the user when the MIME type of a file can't be
	determined automatically.

2001-03-16 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.60): Make sure temporary files aren't
	readable or writeable by anyone other than the owner.

2001-03-16 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.194), edwin/make.scm (3.107): Update for
	next release.

2001-03-16 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: option.scm (14.37), runtime.pkg (14.364): Rewrite
	debugging-info directory on option files; they are sometimes loaded
	while building the system but must refer to debugging info in it's
	installed location.

2001-03-15 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.48): Add more CALL-WITH-*-FILE entries to
	indentation table.

2001-03-15 16:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: fileio.scm (1.19), runtime.pkg (14.362), runtime.pkg
	(14.363): Implement CALL-WITH-APPEND-FILE and
	CALL-WITH-BINARY-APPEND-FILE.

2001-03-15 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.270): Export RUN-SYNCHRONOUS-PROCESS-1.

2001-03-11 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debian-changelog.scm (1.5): Fix the value of fill-prefix in
	debian-changelog mode.

2001-03-09 11:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prbfish.c (1.12), prmcrypt.c (1.3), prmd5.c (1.7),
	prmhash.c (11.3): Generalize handling of modules.  Generate
	position-independent code for modules.

2001-03-09 11:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (11.10): Generalize handling of modules. 
	Generate position-independent code for modules.

2001-03-09 10:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: configure.in (11.9), makegen/Makefile.in.in (1.16):
	Generalize handling of modules.  Generate position-independent code
	for modules.

2001-03-08 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.57): Handle case where "lib" directory
	doesn't exist.

2001-03-08 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: blowfish.scm (1.23), crypto.scm (14.13): Add code to
	allow the crypto primitives to be dynamically loaded.

2001-03-08 14:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: load.scm (14.56), runtime.pkg (14.361): Implement
	LOAD-LIBRARY-OBJECT-FILE for loading primitives that are
	implemented as dynamically-loaded shared libraries.

2001-03-08 13:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uerror.scm (14.46), version.scm (14.193): Add interface
	to new generic error-signalling mechanism.  Requires microcode 14.3
	or later.

2001-03-08 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: utils.c (9.77), utils.c (9.78): Fix problem that
	broke upwards compatibility.

2001-03-08 13:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.15): Fix typo.

2001-03-08 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.14): Major cleanup: eliminate dead code
	from HP-UX and AIX; simplify interfaces; generate meaningful errors
	when possible using new error-signalling mechanism.

2001-03-08 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: avltree.c (1.5), avltree.h (1.4), debug.c (9.52),
	extern.c (9.38), findprim.c (9.55), prim.h (9.46), primutl.c
	(9.74), usrdef.h (9.44): Export `declare_primitive' and
	`install_primitive' in "usrdef.h".  Change declaration of name and
	doc-string elements to be `const'.

2001-03-08 12:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.78): Add mechanism to allow signalling an
	error with an arbitrary Scheme object as an argument.

2001-03-08 12:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: extern.h (9.59), string.c (9.43), string.c (9.44):
	Add procedures to allocate strings without garbage collecting.

2001-03-08 12:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: errors.h (9.43), prims.h (9.48), utils.c (9.76): Add
	mechanism to allow signalling an error with an arbitrary Scheme
	object as an argument.

2001-03-08 12:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: extern.h (9.58), string.c (9.42): Add procedures to
	allocate strings without garbage collecting.

2001-03-08 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: configure.in (11.8), prbfish.c (1.11), prmcrypt.c
	(1.2), prmd5.c (1.6), prmhash.c (11.2), version.h (11.179),
	makegen/Makefile.in.in (1.14): Add support for loading crypto code
	as shared libraries.  This allows a package to be distributed that
	will work even if the target machine doesn't have the required
	libraries installed.  It also allows us to leave MIT Scheme in
	Debian's "main" section while still providing crypto support.

2001-03-03 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: acconfig.h (11.4), configure.in (11.7), tterm.c
	(1.12): Don't even try to use <termcap.h>.  If we're using ncurses,
	don't override the definitions in <term.h>, but do supply
	definitions for things not defined there.  Add abstract speed_t
	type, which is defined in recent <termios.h> files.

2001-03-03 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/terminfo.c (1.7): Fix typo in previous edit.

2001-03-02 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/tterm.c (1.11): Don't use <termcap.h> for ncurses;
	instead use <curses.h> and <term.h> as specified in the
	documentation (doh!).  Hopefully this will eliminate the problem on
	RH7.

2001-03-02 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/terminfo.c (1.6): Rewrite procedure to provide proper
	ANSI prototype.

2001-03-02 13:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: configure.in (11.6), acconfig.h (11.3), tterm.c
	(1.10): Add extra compile-time flag to specify whether libncurses
	defines the `tparam' procedure.

2001-03-01 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2utl/config.h (1.3), ntutl/config.h (1.4): Win32
	and OS/2 need to include headers for blowfish and md5.

2001-02-28 23:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/paths.scm (1.16): Fix thinko in previous edit.

2001-02-28 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: acconfig.h (11.2), configure.in (11.5), prbfish.c
	(1.10), prmd5.c (1.5): Add support for OpenSSL.

2001-02-28 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/tterm.c (1.9): Fix compilation errors from previous
	edit.

2001-02-28 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.22): Don't use mcrypt for Blowfish; it
	provides 8-bit CFB and our original code provides 64-bit CFB.

2001-02-28 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (11.4), microcode/prmcrypt.c (1.1),
	runtime/blowfish.scm (1.21), runtime/crypto.scm (14.12),
	runtime/runtime.pkg (14.360), runtime/version.scm (14.192): Add
	support for mcrypt library.

2001-02-28 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-optional.scm (1.3): Add mcrypt support.

2001-02-28 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.106): Don't require existence of private Info
	directory.

2001-02-28 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.178): Updates to support dynamic linking
	and mcrypt.

2001-02-28 09:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: paths.scm (1.15), info.scm (1.136): Don't require
	existence of private Info directory.

2001-02-28 09:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: tterm.c (1.7), tterm.c (1.8): Use <termcap.h> to
	define termcap interface, if available.  Some recent versions of
	ncurses appear to have changed the interface.

2001-02-28 09:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/terminfo.c (1.5): Eliminate unnecessary compiler
	warnings.

2001-02-27 12:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: intmod.scm (1.112), intmod.scm (1.113): Fix standard
	prompt spacing so that it appears properly in a transcript file.

2001-02-27 12:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.111): Fix standard prompt spacing so that it
	appears properly in a transcript file.

2001-02-27 12:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.56): Don't explicitly bind the standard I/O
	ports; let them all default to the cmdl port.

2001-02-27 12:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/port.scm (1.20): Change current I/O ports to default to
	cmdl port, as is done with other ports.

2001-02-27 12:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (14.28): Fix initialization of console port:
	must notice when standard I/O ports are encapsulations of the
	console port.

2001-02-23 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.56): Fix logic used to select the default
	band.  It wasn't working correctly when there was only one band.

2001-02-23 11:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* README.txt (1.2): Tweak punctuation.

2001-02-13 13:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debian-changelog.scm (1.4), loadef.scm (1.45): Move
	debian-changelog-mode-hook into "loadef.scm".

2001-02-12 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcl.c (9.52), bchdmp.c (9.88): Fix fencepost error
	in handling of linkage sections.

2001-02-10 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.51): Coerce all coordinate arguments to
	flonums.  This allows ratnums and recnums to be used for these
	arguments.

2001-02-10 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.6): Implement ->FLONUM operation to coerce
	real numbers to flonums.

2001-02-08 12:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.9): Add state to look for line
	starting with NON-BASE64 character, and stop decoding there.  This
	works around problem that arises when mail-processing agents (e.g.
	mailman) randomly glue text on the end of a MIME message.

2001-02-05 23:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debian-changelog.scm (1.3): Forgot to supply buffer in
	which to do local variable bindings.

2001-02-05 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.153): New code to do Debian changelogs.

2001-02-05 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/Makefile.in (1.4): New code to do Debian changelogs.

2001-02-05 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debian-changelog.scm (1.2), loadef.scm (1.44): Add
	command debian-changelog-mode.	Fix bugs; code now appears to work.

2001-02-05 16:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.112): Grumble.	Messing around while
	debugging problems caused by incorrectly built bands.

2001-02-05 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.111): Reengineer compilation of character
	set notation.

2001-02-05 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.12): CHAR-SET:NOT-01 must be first set
	defined so that error checks on other calls will work right.

2001-02-05 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debian-changelog.scm (1.1), decls.scm (1.70), ed-ffi.scm
	(1.51), edwin.pkg (1.269), loadef.scm (1.43): New code to do Debian
	changelogs.

2001-02-05 13:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.43): CHAR-SET:NOT-NUMERIC now defined
	by runtime system.

2001-02-05 13:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.47): CHAR-SET:NOT-GRAPHIC now defined by
	runtime system.

2001-02-05 13:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: chrset.scm (14.11), runtime.pkg (14.359): Add
	inversions for all standard character sets.

2001-02-05 13:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.180), edwin.pkg (1.268), regexp.scm (1.75),
	sendmail.scm (1.73): Update copyright dates.

2001-02-05 13:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: regexp.scm (1.74), edwin.pkg (1.267): New procedure
	RE-MATCH-EXTRACT-STRING.

2001-02-05 12:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.72), edwin.pkg (1.266): Add procedures to
	access the user's email-address info.

2001-01-29 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/crypto.scm (14.11): Allow names vectors to be sparse. 
	Newer versions of mhash don't use the index space densely.

2001-01-25 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.23): KEY<? must be able to handle Edwin
	variables as well as symbols.

2001-01-24 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.22): Allow keys to be Edwin variables too.

2001-01-24 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.179): Allow a variable value to be stored in
	a region as a text property.

2001-01-24 19:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.233): Add command
	imail-toggle-wrap-entity.  Change all toggle commands to be under
	C-c C-t.

2001-01-24 17:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.232): Use new MIME-BODY-ENCLOSED? and
	SPECIFIC-PROPERTY-REGION to properly compute the buffer region
	associated with a compound MIME entity.  The problem is that the
	IMAIL-MIME-INFO text property associated with parts of the region
	will be that of subentities of the entity, so it's necessary to use
	the enclosure information to determine this.

2001-01-24 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.116), imail-imap.scm (1.147),
	imail-core.scm (1.117): Modify mime-body datatypes to have a
	pointer to the enclosing entity.

2001-01-24 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.54): Generalize SPECIFIC-PROPERTY-REGION to
	allow the user to supply an equivalence predicate.

2001-01-24 14:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.231): Don't bind mouse commands to entity
	regions; just use single global binding.

2001-01-23 23:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.230): When attaching MIME info to a
	region, don't overwrite sub-regions that already have MIME info
	attached.

2001-01-23 23:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.53): Change REGION-PUT! to allow it to
	specify the optional argument to ADD-TEXT-PROPERTY.

2001-01-23 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.21): Add optional argument to
	ADD-TEXT-PROPERTY that allows it to add the property to a region
	without overwriting any existing sub-regions in which the property
	is already bound.  Also: invert sense of predicate passed to
	MODIFY-TEXT-PROPERTIES, so that it identifies the intervals to be
	modified rather than those not to be modified.

2001-01-23 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.146): Fix bug: UW IMAP sometimes returns
	multiple FETCH responses to a FETCH, while we were expecting just
	one with multiple attributes.  So if there are multiple responses,
	merge them.

2001-01-22 13:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.145): Don't fetch ranges of the form
	"N:*" when N is greater than the length of the folder.	This causes
	an error to be signalled on UW IMAP (although Cyrus accepts this
	and returns nothing).

2001-01-06 14:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.358), io.scm (14.62): Strip off
	external-string wrapper before handing it to the microcode.

2001-01-06 00:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: load.scm (1.25), imail-util.scm (1.31): Update copyright
	date.

2001-01-06 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.38), imail.pkg (1.80),
	imail-summary.scm (1.39): Implement new variable
	imail-summary-auto-select to allow the user to move around in the
	summary buffer without automatically selecting messages. 
	(Requested by Hal.)

2001-01-06 00:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.105): Increment version to reflect recent
	changes.

2001-01-06 00:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.71): Fix bug: COMTAB-KEY-BINDINGS was
	signalling error when the given command was bound to a mouse
	button.  Also, sort the result so that the simplest kinds of keys
	appear first; this is usually what's wanted when reverse-mapping a
	command for documentation.

2001-01-06 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/calias.scm (1.20): Kludge in support for buttons in place
	where they might occur for help commands.  Buttons should really be
	merged into the special-key mechanism.

2001-01-05 22:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.70): Try a different strategy for aliasing
	upper-case letters to lower-case ones: rather than creating
	explicit aliases, just look up both as needed.

2001-01-05 21:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.229): Use new mail-notification mechanism
	in the notifier.  This allows IMAIL to coexist with the notifier.

2001-01-05 21:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/notify.scm (1.19): Add procedure NOTIFIER:SET-MAIL-STRING!
	to allow an alternate mail reader (e.g. IMAIL) to control mail
	notification.

2001-01-05 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/string.c (9.41): Fix typo in ht_delete.  Don't
	unnecessarily try to grow or shrink hash table.

2001-01-05 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.38): Pass external-string descriptor to
	substring-move-FOO! rather than runtime's wrapper.

2001-01-05 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.37), runtime.pkg (14.357): Add
	operations for XSTRING (extended string) objects.

2001-01-04 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-util.scm (1.30), load.scm (1.24): Implement input
	port from external string.

2001-01-04 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.66), runtime.pkg (14.356), string.scm
	(14.36), version.scm (14.191): Add interface to external strings.

2001-01-04 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/string.c (9.40): Primitive names are supposed to be
	upper-case.

2001-01-04 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prims.h (9.47), prosio.c (1.18), string.c (9.39),
	version.h (11.177): Implement external-string mechanism for storing
	text data outside of Scheme's heap.

2000-12-28 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.23): Reimplement handling of MIME entities. 
	Now all entities are (more or less) well-formed XML, using the
	keyword "imail-part".  Presentation of an entity is now consistent,
	whether it was originally shown inline or out of line.	New option
	allows message digests to have their messages show out of line. 
	imail-use-original-mime-boundaries replaced by
	imail-mime-boundary-style; the latter additionally supports a
	boundary that is an SGML comment.

2000-12-28 00:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.228), imail.pkg (1.79), imail-core.scm
	(1.115): Reimplement handling of MIME entities.  Now all entities
	are (more or less) well-formed XML, using the keyword "imail-part".
	 Presentation of an entity is now consistent, whether it was
	originally shown inline or out of line.  New option allows message
	digests to have their messages show out of line. 
	imail-use-original-mime-boundaries replaced by
	imail-mime-boundary-style; the latter additionally supports a
	boundary that is an SGML comment.

2000-12-25 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/Makefile.in (1.3), edwin/Makefile.in (1.3): Fix problem
	remaking symbolic links.

2000-12-25 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/Makefile.in (1.2), edwin/Makefile.in (1.2): Fix problem
	remaking symbolic links.

2000-12-25 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/win32.scm (1.15): Fix bug: C-g was not acting as interrupt
	character.

2000-12-23 01:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/optiondb.scm (1.5): Add WIN32 option.  Alphabetize options.

2000-12-23 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/optiondb.scm (1.4): Update to new GUARDED-SYSTEM-LOADER.

2000-12-22 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.87): Must include unix-emulation header
	files.	These were inadvertently removed with the mktemp changes.

2000-12-21 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/configure (1.4): Can't use -f test on symbolic links
	that point to directories.

2000-12-21 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/Clean.sh (1.5): Delete configured makefile in "distclean"
	rule.

2000-12-21 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* README.txt (1.1): Initial revision.

2000-12-21 13:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* configure.in (1.2), runtime/Makefile.in (1.1), Makefile.in
	(1.16), etc/Setup.sh (1.6), sos/Makefile.in (1.1),
	edwin/Makefile.in (1.1), imail/Makefile.in (1.1): Define
	per-directory Makefiles with custom "install" rules for those
	directories that supply things to be installed.

2000-12-21 00:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.37): Change highlighting so that only
	the date, subject, and author are highlighted.	This makes it
	easier to see point.

2000-12-21 00:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.227): Set mode-line-process to a procedure
	value, so that the new mode line is computed only by need.

2000-12-21 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.36): Fix problems with previous
	mode-line tweak by setting mode-line-process to a procedure value
	that is called whenever the mode line is generated.

2000-12-20 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.226): Fix typo.

2000-12-20 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.35): Change imail-summary mode line to
	contain a connection-status indicator.

2000-12-20 23:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.225): Fix bug: make sure that "[New Mail]"
	marker is removed if the default folder is deleted.

2000-12-20 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.224): Fix problem with global mail
	notification: the code that decided whether to do this depended on
	the selected buffer.

2000-12-20 02:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.112): Write down assorted things I've been
	thinking about.

2000-12-19 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/compile.scm (1.2): Make sure that all cref files are built.

2000-12-19 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.15): Remove dependence of "install" on "all". 
	This will eliminate gratuitous rebuilding of bands.

2000-12-19 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.14): Make sure that bands are written to output
	directory.

2000-12-19 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.190): Increment release number.

2000-12-19 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.104), imail/load.scm (1.22): Increment version
	to reflect recent changes.

2000-12-16 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.223): Change M-x imail-quit again -- this
	time to reverse the meaning of the prefix argument.  Now the
	default is to quit from all folders.

2000-12-16 00:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.222): Add prefix argument to M-x
	imail-quit that says to close _all_ folders.

2000-12-09 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Clean.sh (1.4): Don't clean vax disassembler links for
	"distclean".

2000-12-08 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.12), Makefile.in (1.13): Use autoconf for
	top-level Makefile.

2000-12-08 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.10), Makefile.in (1.11): Use autoconf for
	top-level Makefile.

2000-12-08 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.6), Makefile.in (1.7), Makefile.in (1.8),
	Makefile.in (1.9): Use autoconf for top-level Makefile.

2000-12-08 14:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.5): Use autoconf for top-level Makefile.

2000-12-08 14:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.3), microcode/makegen/Makefile.in.in (1.13),
	Makefile.in (1.4): Use autoconf for top-level Makefile.

2000-12-08 13:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* Setup.sh (1.6): Use autoconf for top-level Makefile.

2000-12-08 13:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* Clean.sh (1.4): Use autoconf for top-level Makefile.

2000-12-08 13:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* Clean.sh (1.3): Use autoconf for top-level Makefile.

2000-12-08 13:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/Setup.sh (1.4), microcode/makegen/makeinit.sh (1.8),
	microcode/makegen/Makefile.in.in (1.12), microcode/Setup.sh (1.5),
	install-sh (1.1): Use autoconf for top-level Makefile.

2000-12-08 13:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* Setup.sh (1.5), compiler/Setup.sh (1.3), etc/Setup.sh (1.5),
	etc/functions.sh (1.1), runtime-check/Setup.sh (1.3): Use autoconf
	for top-level Makefile.

2000-12-08 12:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.2), Makefile.std (1.11), Setup.sh (1.3),
	microcode/Setup.sh (1.3), microcode/makegen/makeinit.sh (1.7),
	Setup.sh (1.4): Use autoconf for top-level Makefile.

2000-12-08 12:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.in (1.1), configure.in (1.1), mkinstalldirs (1.1),
	etc/TUTORIAL (1.1), etc/mime.types (1.1), microcode/configure.in
	(11.3), microcode/makegen/Makefile.in.in (1.11): Use autoconf for
	top-level Makefile.

2000-12-08 12:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.19), configure (1.4): Use autoconf for top-level
	Makefile.

2000-12-08 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* Setup.sh (1.2): Redesign the structure for setup and clean rules.
	 New structure uses shell scripts in each directory, which the
	makefiles refer to.  This greatly simplifies the configuration code
	because it was getting too painful to put complex shell scripts
	inside the makefiles.

2000-12-08 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Clean.sh (1.2), etc/Setup.sh (1.4),
	runtime-check/Setup.sh (1.2), compiler/Clean.sh (1.3): Redesign the
	structure for setup and clean rules.  New structure uses shell
	scripts in each directory, which the makefiles refer to.  This
	greatly simplifies the configuration code because it was getting
	too painful to put complex shell scripts inside the makefiles.

2000-12-08 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Setup.sh (1.2): Redesign the structure for setup and
	clean rules.  New structure uses shell scripts in each directory,
	which the makefiles refer to.  This greatly simplifies the
	configuration code because it was getting too painful to put
	complex shell scripts inside the makefiles.

2000-12-08 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.18), Makefile.std (1.10), Tags.sh (1.1),
	compiler/Makefile (1.20), compiler/Tags.sh (1.1), etc/Clean.sh
	(1.3), etc/Setup.sh (1.3), etc/Tags.sh (1.1), etc/Clean.sh (1.4):
	Redesign the structure for setup and clean rules.  New structure
	uses shell scripts in each directory, which the makefiles refer to.
	 This greatly simplifies the configuration code because it was
	getting too painful to put complex shell scripts inside the
	makefiles.

2000-12-08 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: Stage.sh (1.1), Clean.sh (1.1): Redesign the structure
	for setup and clean rules.  New structure uses shell scripts in
	each directory, which the makefiles refer to.  This greatly
	simplifies the configuration code because it was getting too
	painful to put complex shell scripts inside the makefiles.

2000-12-08 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/Stage.sh (1.2): Redesign the structure for setup and clean
	rules.	New structure uses shell scripts in each directory, which
	the makefiles refer to.  This greatly simplifies the configuration
	code because it was getting too painful to put complex shell
	scripts inside the makefiles.

2000-12-08 00:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Setup.sh (1.1): Redesign the structure for setup and
	clean rules.  New structure uses shell scripts in each directory,
	which the makefiles refer to.  This greatly simplifies the
	configuration code because it was getting too painful to put
	complex shell scripts inside the makefiles.

2000-12-08 00:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime-check/Clean.sh (1.1), cref/Clean.sh (1.2), edwin/Clean.sh
	(1.2), etc/Clean.sh (1.2), runtime-check/Makefile (1.3): Redesign
	the structure for setup and clean rules.  New structure uses shell
	scripts in each directory, which the makefiles refer to.  This
	greatly simplifies the configuration code because it was getting
	too painful to put complex shell scripts inside the makefiles.

2000-12-08 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime-check/Setup.sh (1.1): Redesign the structure for setup
	and clean rules.  New structure uses shell scripts in each
	directory, which the makefiles refer to.  This greatly simplifies
	the configuration code because it was getting too painful to put
	complex shell scripts inside the makefiles.

2000-12-08 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* Clean.sh (1.2): Fix typo.

2000-12-08 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/Setup.sh (1.2): Fix typo.

2000-12-07 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/bootstrap-compile.scm (1.8), etc/bootstrap.sh (1.5),
	etc/build-compiler.scm (1.2), etc/build-edwin.scm (1.2),
	etc/build-runtime.scm (1.2), etc/build-tree.sh (1.5),
	etc/create-dirs.sh (1.8), etc/runtime-check.cbf (1.2),
	microcode/Mclean.sh (1.4): Redesign the structure for setup and
	clean rules.  New structure uses shell scripts in each directory,
	which the makefiles refer to.  This greatly simplifies the
	configuration code because it was getting too painful to put
	complex shell scripts inside the makefiles.

2000-12-07 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* Clean.sh (1.1), Makefile (1.17), Makefile.std (1.9), Setup.sh
	(1.1), etc/Clean.sh (1.1), etc/Setup.sh (1.1), etc/Stage.sh (1.1),
	edwin/Clean.sh (1.1), cref/Clean.sh (1.1), microcode/Clean.sh
	(1.1): Redesign the structure for setup and clean rules.  New
	structure uses shell scripts in each directory, which the makefiles
	refer to.  This greatly simplifies the configuration code because
	it was getting too painful to put complex shell scripts inside the
	makefiles.

2000-12-07 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.10): When "Makefile.deps" was
	moved to top level directory, Forgot to change "maintainer-clean"
	rule.

2000-12-07 18:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime-check/Makefile (1.2): Fix typo in previous change.

2000-12-07 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/create-dirs.sh (1.7), Makefile (1.16): Don't need to create
	"runtime-check" anymore; using a different strategy.

2000-12-07 18:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime-check/Makefile (1.1): Initial revision.

2000-12-07 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime-check/runtime.cbf (1.1): Initial revision.

2000-12-07 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.15): Fix spurious errors from deleting non-existent
	files.

2000-12-07 17:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.14): Fix typo.

2000-12-07 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.13): Fix up "*clean" rules to handle "runtime-check"
	and "lib".

2000-12-07 17:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/create-dirs.sh (1.6): Make sure "runtime-check/Makefile"
	exists.

2000-12-07 17:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: create-dirs.sh (1.4), create-dirs.sh (1.5): Need to have
	file "runtime-check/runtime.cbf".

2000-12-07 17:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/runtime-check.cbf (1.1): Initial revision.

2000-12-07 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/create-dirs.sh (1.3), Makefile.std (1.8), Makefile (1.12):
	Fix broken test commands.

2000-12-07 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/create-dirs.sh (1.2): Fix rule to create runtime-check
	directory.  Link rules were broken, and script can't assume that
	.bin files exist yet; we must work from the .scm files and
	transform the names.

2000-12-07 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.11): Define "all" rule.

2000-12-07 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/build-bands.sh (1.1): Initial revision.

2000-12-07 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/optiondb.scm (1.3): Use more powerful loader to support build
	process.

2000-12-07 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: create-dirs.sh (1.1), compile.scm (1.1): Initial revision.

2000-12-07 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.9): Add rules to make and
	install "utabmd.bin".

2000-12-07 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.8): Add rules to make and
	install "utabmd.bin".

2000-12-07 15:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/mkinstalldirs (1.1): Import revision 1.13 from
	automake.

2000-12-07 14:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.7): First cut at install
	rules.

2000-12-07 11:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.132): Fix some bad interactions between
	buffer layouts and popped-up windows.

2000-12-07 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/config.h (1.3): Watcom C/C++ and Visual C++ both
	have <fcntl.h>, and it must be loaded in order to get the
	definition for O_BINARY.

2000-12-06 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* configure (1.3), compiler/configure (1.3): Fix typo.

2000-12-06 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/Mclean.sh (1.1), Makefile (1.10), microcode/Mclean.sh
	(1.2), microcode/Mclean.sh (1.3): Move knowledge about doing
	"maintainer-clean" into script in microcode directory.

2000-12-06 00:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.6): Change
	"makegen/makeinit.sh" to leave the directory configured.  This
	allows "Setup.sh" to use "make setup", thus avoiding replication of
	information.

2000-12-06 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (11.2): Don't try to link architecture
	files if they already exist.

2000-12-06 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.9): For "maintainer-clean", treat microcode directory
	specially.  If "configure" exists but "Makefile" doesn't, run
	"configure".

2000-12-06 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: Setup.sh (1.2), makegen/makeinit.sh (1.6): Change
	"makegen/makeinit.sh" to leave the directory configured.  This
	allows "Setup.sh" to use "make setup", thus avoiding replication of
	information.

2000-12-06 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.8): Add rcs and win32 directories.

2000-12-06 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.19): Don't create machine-specific files in
	"setup" rule.  But do clean them in "distclean" rule.

2000-12-06 00:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/configure (1.1), configure (1.2), compiler/configure
	(1.2): Move compiler configuration to a file in the compiler
	directory.

2000-12-06 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/config.guess (1.1): Initial revision.

2000-12-06 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.7): Don't execute "*clean" rule in subdirectory if
	there's no makefile.

2000-12-05 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.5), Makefile (1.6): Don't execute "*clean" rule in
	subdirectory if there's no makefile.

2000-12-05 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.18): Don't delete the Makefile.

2000-12-05 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* configure (1.1): Initial revision.

2000-12-05 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.17): Add code to "setup" rule to create
	links into machine directory.  (The machine link itself is created
	at configuration time.)

2000-12-05 22:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.16): Don't show conditional for "machine".

2000-12-05 22:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.4): Don't abort clean rules if one subdirectory
	fails.

2000-12-05 21:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.15): Add rules to clean the directory.

2000-12-05 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/makeinit.sh (1.5): Use "make distclean" to
	clean up unneeded files; don't reproduce information that is
	already present in the makefile.  Add comments explaining what each
	step does.

2000-12-05 21:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.5), Makefile (1.3): Move
	setup stuff to shell script.  This must be possible to do without a
	Makefile.

2000-12-05 21:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/Setup.sh (1.1): Initial revision.

2000-12-05 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/makeinit.sh (1.4): Do equivalent of "distclean"
	after building "Makefile.in".

2000-12-05 18:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.14): Fix typo.

2000-12-05 18:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.std (1.7): Fix broken logic.

2000-12-05 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.std (1.6): Add commands to delete packaging files when
	appropriate.

2000-12-05 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.2): When doing "setup" for microcode directory, must
	create Makefile in order to run the setup rule.

2000-12-05 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile (1.1): Initial revision.

2000-12-05 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.std (1.5): Add "*clean" rules.

2000-12-05 17:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.13): Don't create "machine" link in source
	directory; that is supposed to go in the target directory.

2000-12-05 17:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.std (1.4): Clean up commands for staging rules.

2000-12-05 17:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.std (1.3): Add "setup" rule.

2000-12-05 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.12): Rewrite to eliminate GNU make
	dependencies.  Add "setup" rule.

2000-12-05 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/: Makefile.in.in (1.3), Makefile.in.in (1.4):
	Add "setup" rule.

2000-12-05 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.213): Fix bug: alternate file doesn't have to
	exist.	Calling PROMPT-FOR-ALTERNATE-FILE also prevented using this
	command to visit a directory.

2000-12-05 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/makeinit.sh (1.3): Don't write files in
	"makegen/"; this causes problems when the build directory is
	symlinked into the source directory.

2000-12-05 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.98), bchpur.c (9.70), config.h (9.102),
	dosasutl.asm (1.5), dosconio.c (1.14), dosenv.c (1.11), dosexcp.c
	(1.7), dosexcp.h (1.5), dosfg.c (1.5), dosfile.c (1.5), dosfs.c
	(1.7), dosi10.asm (1.4), dosinsn.h (1.4), dosint10.c (1.10),
	dosint10.h (1.4), dosio.c (1.10), dosio.h (1.6), doskbd.c (1.14),
	doskbd.h (1.4), doskbutl.asm (1.8), dosscan.h (1.6), dosselec.h
	(1.4), dossig.c (1.18), dossys.c (1.6), dossys.h (1.4), dosterm.h
	(1.4), dostop.c (1.14), dostop.h (1.4), dostrap.c (1.8), dostrap.h
	(1.5), dostterm.c (1.4), dostty.c (1.5), dosutil.c (1.4), dosutil.h
	(1.4), dosx32.c (1.8), dosxcutl.asm (1.9), msdos.h (1.8), oscond.h
	(1.27), posixtyp.h (1.17), prdosenv.c (1.12), prdosfs.c (1.6):
	Merge in changes from branch ac-new-bch-gc.

2000-12-05 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: acconfig.h (11.1), ansidecl.h (1.7), avltree.h (1.3),
	bchdmp.c (9.86), bchdrn.c (1.10), bchdrn.h (1.10), bchgcc.h (9.63),
	bchgcl.c (9.51), bchmmg.c (9.97), bchpur.c (9.69), bchutl.c (1.11),
	bignum.c (9.49), bintopsb.c (9.72), bitstr.c (9.63), bitstr.h
	(1.10), boot.c (9.104), cmpgc.h (1.31), cmpint.c (1.92), cmpint.h
	(10.7), cmptype.h (1.3), config.guess (11.1), config.sub (11.1),
	configure.in (11.1), confshared.h (11.1), const.h (9.46), debug.c
	(9.51), default.h (9.44), dmpwrld.c (9.40), error.c (1.7), extern.h
	(9.57), fasdump.c (9.64), fasload.c (9.88), findprim.c (9.54),
	foreign.c (1.3), foreign.h (1.3), gccode.h (9.57), gcloop.c (9.47),
	hooks.c (9.59), hppacach.h (1.6), hppanwca.c (1.5), install-sh
	(11.1), intern.c (9.57), interp.c (9.90), interp.h (9.42), intrpt.h
	(1.21), liarc.h (1.15), lookprm.c (1.12), lookup.c (9.58), lookup.h
	(9.52), memmag.c (9.66), memmag.h (1.8), missing.c (9.33), mul.c
	(9.35), nt.h (1.9), ntenv.c (1.19), ntfs.c (1.26), ntgui.c (1.28),
	ntio.c (1.23), ntscreen.c (1.46), ntsig.c (1.22), nttop.c (1.30),
	nttrap.c (1.18), nttterm.c (1.4), object.h (9.50), obstack.c (1.6),
	obstack.h (1.11), option.c (1.55), os.h (1.7), os2.h (1.7), os2fs.c
	(1.12), os2msg.c (1.14), os2pm.c (1.33), os2pmcon.c (1.26),
	os2proc.c (1.7), os2sock.c (1.15), os2term.c (1.4), os2top.c
	(1.21), os2xcpt.c (1.8), osenv.h (1.10), osfs.h (1.9), osio.h
	(1.15), osscheme.c (1.11), osscheme.h (1.11), outf.c (1.12), outf.h
	(1.5), ppband.c (9.50), prbfish.c (1.9), primutl.c (9.73), prmcon.h
	(1.4), prntenv.c (1.10), prntfs.c (1.16), prntio.c (1.13),
	pros2fs.c (1.18), pros2io.c (1.9), prosenv.c (1.17), prosfs.c
	(1.15), prosproc.c (1.19), pruxdld.c (1.13), pruxenv.c (1.19),
	pruxfs.c (9.56), pruxio.c (1.8), pruxsock.c (1.18), psbmap.h
	(9.44), purify.c (9.59), purutl.c (9.51), regex.c (1.20), scheme.h
	(9.39), storage.c (9.57), syntax.c (1.25), syscall.h (1.13),
	sysprim.c (9.47), term.c (1.15), termcap.c (1.7), terminfo.c (1.4),
	transact.c (1.5), trap.h (9.45), utils.c (9.75), ux.c (1.20), ux.h
	(1.74), uxctty.c (1.14), uxenv.c (1.20), uxfile.c (1.10), uxfs.c
	(1.20), uxio.c (1.45), uxproc.c (1.26), uxsig.c (1.35), uxsig.h
	(1.6), uxsock.c (1.26), uxterm.c (1.28), uxtop.c (1.25), uxtrap.c
	(1.30), uxtrap.h (1.29), version.h (11.176), wabbit.c (1.8), x11.h
	(1.17), x11base.c (1.76), xdebug.c (9.34), cmpauxmd/hppa.m4 (1.39),
	cmpauxmd/m4-dos (1.2), cmpauxmd/makefile (1.7), cmpauxmd/mc68k.m4
	(1.27), cmpauxmd/vax.m4 (1.4), cmpintmd/i386.h (1.32),
	makegen/Makefile.in.in (1.2), makegen/files-core.scm (1.2),
	makegen/files-gc-bch.scm (1.2), makegen/files-gc-std.scm (1.2),
	makegen/files-optional.scm (1.2), makegen/files-os-prim.scm (1.2),
	makegen/files-other.scm (1.2), makegen/files-unix.scm (1.2),
	makegen/m4.sh (1.2), makegen/makegen.scm (1.2), makegen/makeinit.sh
	(1.2), ntutl/config.h (1.2), ntutl/makefile.wcc (1.16),
	ntutl/ntgui.rc (1.10), os2utl/config.cmd (1.4), os2utl/config.h
	(1.2), os2utl/makefile (1.15), os2utl/makefile.cmn (1.13),
	os2utl/makefile.emx (1.9), os2utl/makefile.gcc (1.7),
	os2utl/makefile.vac (1.7), os2utl/makefile.wcc (1.8),
	os2utl/mkos2pm.scm (1.2): Merge in changes from branch
	ac-new-bch-gc.

2000-12-04 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* pcsample/Makefile (1.3): Add rule for making TAGS file.

2000-12-04 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.1.2.1.2.1): Add rule to etags
	so that primitive definitions are tagged.

2000-12-04 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntfs.c (1.25.4.2), osfs.h (1.8.4.2): Fix copyright
	date.

2000-12-04 17:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.85.2.1.2.4), bchgcc.h (9.60.2.3.2.5),
	bchmmg.c (9.95.2.3.2.5), ntutl/makefile.wcc (1.13.2.1.2.4),
	os2utl/makefile.cmn (1.12.2.1.2.3): Eliminate use of `mktemp';
	instead use portable `OS_file_touch' which is safer.

2000-12-04 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntfs.c (1.25.4.1), os2fs.c (1.11.4.1), osfs.h
	(1.8.4.1), prntfs.c (1.15.2.1.2.1), pros2fs.c (1.17.4.1), prosfs.c
	(1.14.2.1.2.1), pruxfs.c (9.55.2.1.2.1), uxfs.c (1.19.2.1.2.1):
	Define standard procedure `OS_file_touch' and merge OS-specific
	copies of corresponding primitives into a OS-independent primitive.

2000-12-04 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.85.2.1.2.3): Finish rewriting `dump_loop'. 
	Finished product is very similar to gc_loop.

2000-12-04 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchgcl.c (9.50.4.7): Add some macros to abstract the
	process of dumping the free and scan buffers.

2000-12-04 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.85.2.1.2.2): First incomplete draft of
	rewrite.  File reorganized and style converted.  `dump_loop' is in
	transition but cursory testing indicates that it still works.

2000-12-04 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.60.2.3.2.4), bchgcl.c (9.50.4.6): Rename
	FLOAT_ALIGN_FREE to BCH_ALIGN_FLOAT.  Define
	BCH_ALIGN_FLOAT_ADDRESS.

2000-12-03 22:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.212): Change M-x find-alternate-file to
	prompt as it does in Emacs: with the full pathname of the current
	buffer's file, if any.

2000-12-03 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/mkos2pm.scm (1.1): file mkos2pm.scm was
	initially added on branch ac-new-bch-gc.

2000-12-03 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/mkos2pm.scm (1.1.2.1): Initial revision.

2000-12-03 20:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.cmn (1.12.2.1.2.2): Add rule to
	automatically generate the os2pm-*.h files.

2000-12-03 20:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosproc.c (1.18.2.1.2.4): IBM VisualAge C/C++ doesn't
	need declaration of `environ'; it's declared by <stdlib.h>.

2000-12-03 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.76): Add defaults to prompts for M-x
	vc-version-diff.

2000-12-03 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.15): Clean up .map files and
	*def.c files.

2000-12-03 00:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.14): Optimize code by default.

2000-12-03 00:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.13.2.1.2.3): Optimize code by
	default.

2000-12-02 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/findprim.c (9.53.2.1.2.3): Work around: FreeBSD
	declares incompatible `mergesort' in <stdlib.h>.

2000-12-02 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.73.2.1.2.4): Declare `environ' on non-GNU
	systems.

2000-12-02 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.18.2.1.2.1): Eliminate unused
	unix-specific primitive UNIX-ENVIRONMENT.  This primitive is
	identical to the portable primitive SCHEME-ENVIRONMENT.

2000-12-02 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: interp.h (9.41.4.1), ntenv.c (1.18.4.1), ntgui.c
	(1.27.2.1.2.1), ntscreen.c (1.45.4.1), ntsig.c (1.21.2.1.2.1),
	nttrap.c (1.17.2.1.2.2), outf.c (1.11.2.1.2.2), prntio.c
	(1.12.4.1): Eliminate compiler warnings from Watcom C/C++ under
	Windows.

2000-12-02 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.13.2.1.2.2): Don't forget to
	clean up .map files and *def.c files.

2000-12-02 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosproc.c (1.18.2.1.2.3): This file requires explicit
	declaration of `environ' because it doesn't include the
	operating-system specific files that normally provide it.

2000-12-02 16:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.73.2.1.2.3): Copy include of time files here;
	don't depend on "config.h" doing this.

2000-12-02 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosproc.c (1.18.2.1.2.2), ux.h (1.73.2.1.2.2),
	uxproc.c (1.25.2.1.2.1): Eliminate explicit declarations of
	`environ'.

2000-12-02 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttrap.c (1.17.2.1.2.1): Change names containing
	"Win32Exception" back to "WinntException".  Apparently at least one
	of these names is externally defined.

2000-12-02 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/findprim.c (9.53.2.1.2.2): Eliminate large number of
	compiler warnings from IBM VisualAge C/C++ running under OS/2.	One
	specific change is to eliminate most uses of __STDC__ in favor of
	HAVE_STDC, since IBM's compiler (and Microsoft's Windows compiler)
	doesn't define this.

2000-12-02 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpintmd/i386.h (1.31.2.1.2.2), os2utl/makefile.cmn
	(1.12.2.1.2.1), os2utl/config.h (1.1.2.1.2.1), os2utl/makefile.vac
	(1.6.2.1.2.1), ntutl/makefile.wcc (1.13.2.1.2.1): Eliminate large
	number of compiler warnings from IBM VisualAge C/C++ running under
	OS/2.  One specific change is to eliminate most uses of __STDC__ in
	favor of HAVE_STDC, since IBM's compiler (and Microsoft's Windows
	compiler) doesn't define this.

2000-12-02 00:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ansidecl.h (1.6.4.1), bchmmg.c (9.95.2.3.2.4),
	bitstr.c (9.62.4.1), cmpint.c (1.91.2.1.2.1), cmpint.h (10.6.4.1),
	fasload.c (9.87.2.1.2.1), findprim.c (9.53.2.1.2.1), intern.c
	(9.56.4.1), lookup.c (9.57.2.1.2.1), lookup.h (9.51.2.1.2.1), nt.h
	(1.8.2.1.2.1), obstack.c (1.5.4.1), obstack.h (1.10.4.1), os2.h
	(1.6.4.1), os2msg.c (1.13.4.1), os2pm.c (1.32.4.1), os2proc.c
	(1.6.4.1), os2sock.c (1.14.4.1), os2term.c (1.3.4.1), os2top.c
	(1.20.4.1), os2xcpt.c (1.7.4.1), osenv.h (1.9.4.1), outf.c
	(1.11.2.1.2.1), outf.h (1.4.4.1), primutl.c (9.72.2.1.2.1),
	prmcon.h (1.3.4.1), pros2io.c (1.8.4.1), prosproc.c (1.18.2.1.2.1),
	purutl.c (9.50.4.1), regex.c (1.19.2.1.2.1), sysprim.c (9.46.4.1),
	termcap.c (1.6.2.1.2.1), transact.c (1.4.4.1), utils.c
	(9.74.2.1.2.1), ux.h (1.73.2.1.2.1), x11.h (1.16.4.1): Eliminate
	large number of compiler warnings from IBM VisualAge C/C++ running
	under OS/2.  One specific change is to eliminate most uses of
	__STDC__ in favor of HAVE_STDC, since IBM's compiler (and
	Microsoft's Windows compiler) doesn't define this.

2000-12-01 22:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.89.2.1.2.1): Eliminate page breaks in
	middle of `Interpret'.	(Most of these were useless anyway since
	they had been indented.)  Fix indentation in a few places. 
	Reindent lines that were too long.

2000-12-01 22:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.31.2.1.2.1): Fix bug: code was still
	referencing _OS2 and WINNT rather than __OS2__ and __WIN32__.

2000-12-01 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.60.2.3.2.3), bchgcl.c (9.50.4.5),
	bchmmg.c (9.95.2.3.2.3), bchpur.c (9.67.2.2.2.3): Clean up the code
	in the two top-level GC procedures, `GC' and `purify'.	Mostly
	presentation changes, but some simplifications as well.  The code
	is still far from obvious.

2000-12-01 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.60.2.3.2.2), bchmmg.c (9.95.2.3.2.2),
	bchpur.c (9.67.2.2.2.2): Fix bug: code for fixing up weak pairs at
	end of GC was assuming that Constant_Top was the same as low_heap. 
	But recent changes make that untrue in purify.

2000-12-01 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchgcl.c (9.50.4.4): Fix thinko: scope of C variable
	declaration _includes_ an initializer if present.  This is unlike
	Scheme.

2000-12-01 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.32): X-SCREEN-AUTO-RAISE has been eliminated.

2000-12-01 01:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.143): Fix typo in previous change.

2000-12-01 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.55): Fix typo in recent change.

2000-12-01 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xterm.scm (1.65), xcom.scm (1.17): Create separate fields
	in X screen structure to hold visibility, whether window is mapped,
	and whether window is exposed.	Synthesize SCREEN-VISIBILITY from
	these fields; previously SCREEN-VISIBILITY held all this
	information and was sometimes inaccurate.
	
	Don't attempt to give focus to an unmapped frame.  This will only
	signal an error.
	
	Don't map an unmapped frame when entering it.  Eliminate variable
	X-SCREEN-AUTO-RAISE and associated command.  Both of these things
	were window management; we shouldn't be doing that.

2000-12-01 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: curren.scm (1.142), debug.scm (1.54), edwin.pkg (1.265),
	os2term.scm (1.22), scrcom.scm (1.8), screen.scm (1.118), win32.scm
	(1.14), wincom.scm (1.131): Change arguments to OTHER-SCREEN so
	that only first is required.
	
	Eliminate OTHER-SCREEN?, replacing occurrences with OTHER-SCREEN.
	
	Change meaning of SCREEN-VISIBLE? to mean "not unmapped"; this is
	almost always what was meant.
	
	Fix bug in SELECT-WINDOW: when selecting the selected window of
	another frame, must select the frame.
	
	Fix SELECT-BUFFER-OTHER-SCREEN to select the frame as well as the
	buffer if reusing an existing frame.

2000-12-01 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/scrcom.scm (1.7): Don't allow selection of frames that
	aren't mapped.	The user can unmap it first if wanted.

2000-11-30 12:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.71): Fix bug: temporary mark was used
	across buffer modification.

2000-11-30 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.64): FOCUS-IN events must not cause
	X-WINDOW-SET-INPUT-FOCUS to be called.	Use dynamic binding to
	prevent this from happening.

2000-11-30 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchgcl.c (9.50.4.3): Fix termination condition for
	purification.  purify expects us to halt at any broken heart.

2000-11-29 23:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchgcl.c (9.50.4.2): Fix typo.

2000-11-29 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.85.2.1.2.1), bchgcc.h (9.60.2.3.2.1),
	bchgcl.c (9.50.4.1), bchmmg.c (9.95.2.3.2.1), bchpur.c
	(9.67.2.2.2.1), fasdump.c (9.63.2.1.2.1), gccode.h (9.56.2.1.2.1),
	gcloop.c (9.46.4.1), purify.c (9.58.4.1): Complete rewrite of the
	bchscheme garbage-collector main loop.	The garbage collector and
	purify now share the main loop.  The new design is much more
	transparent: there are no variable references or control branches
	hidden inside macros.  This design should be easier to debug, too,
	since the control structure isn't hidden inside macros that can't
	be stepped.

2000-11-29 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.75): M-x vc-directory now prompts for the
	directory.

2000-11-29 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.60.2.3), bchgcc.h (9.62): Fix thinko.

2000-11-29 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.70): Fix typo in previous change.

2000-11-28 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.30.2.2): Fix typo.

2000-11-28 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.175): Update to reflect bug fix to purify
	in bchscheme.

2000-11-28 13:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.22): Don't need separate changelogs for the
	documentation; just one.

2000-11-28 13:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.189): Update release number to 7.5.11.

2000-11-28 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/nparse.scm (1.3): Handle CVS "magic branch numbers".

2000-11-28 12:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.21): Move v7 documentation from
	"/scheme/documentation/" to "/scheme/v7/doc/".

2000-11-28 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.61), bchmmg.c (9.96), bchpur.c (9.68):
	Fix bug: purify wasn't properly saving and restoring the scan state
	around the scan of constant space.  Doing this right requires
	access to internal state of bchmmg, so I built an abstraction to do
	this.

2000-11-28 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.60.2.2), bchmmg.c (9.95.2.3), bchpur.c
	(9.67.2.2): Fix bug: purify wasn't properly saving and restoring
	the scan state around the scan of constant space.  Doing this right
	requires access to internal state of bchmmg, so I built an
	abstraction to do this.

2000-11-27 22:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.67.2.1): Change some instances of
	`purify_mode' to `pure_p' to eliminate confusion; another variable
	called `purify_mode' has a completely different type and meaning.

2000-11-27 22:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (1.1.2.2): Add new function tests needed
	by "bchmmg.c".

2000-11-27 22:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.95.2.2): Reconditionalize to use less
	idiosyncratic tests.

2000-11-27 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.221): Fix M-x imail-save-attachment
	properly; previous fix didn't work right.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-unix.scm (1.1): file files-unix.scm was
	initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-optional.scm (1.1): file
	files-optional.scm was initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-other.scm (1.1): file files-other.scm was
	initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/makegen.scm (1.1): file makegen.scm was
	initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntutl/config.h (1.1), os2utl/config.h (1.1): file
	config.h was initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/makeinit.sh (1.1): file makeinit.sh was
	initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-os-prim.scm (1.1): file files-os-prim.scm
	was initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/m4.sh (1.1): file m4.sh was initially added on
	branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/Makefile.in.in (1.1): file Makefile.in.in was
	initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-core.scm (1.1): file files-core.scm was
	initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/m4-dos (1.1): file m4-dos was initially added
	on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-gc-bch.scm (1.1): file files-gc-bch.scm
	was initially added on branch use-autoconf.

2000-11-27 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/makegen/files-gc-std.scm (1.1): file files-gc-std.scm
	was initially added on branch use-autoconf.

2000-11-27 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/install-sh (1.1): file install-sh was initially added
	on branch use-autoconf.

2000-11-27 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.sub (1.1): file config.sub was initially added
	on branch use-autoconf.

2000-11-27 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/configure.in (1.1): file configure.in was initially
	added on branch use-autoconf.

2000-11-27 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/confshared.h (1.1): file confshared.h was initially
	added on branch use-autoconf.

2000-11-27 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.guess (1.1): file config.guess was initially
	added on branch use-autoconf.

2000-11-27 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/acconfig.h (1.1): file acconfig.h was initially added
	on branch use-autoconf.

2000-11-27 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: acconfig.h (1.1.2.1), avltree.h (1.2.2.1), bchdmp.c
	(9.85.2.1), bchdrn.c (1.9.2.1), bchdrn.h (1.9.2.1), bchgcc.h
	(9.60.2.1), bchmmg.c (9.95.2.1), bchutl.c (1.10.2.1), bignum.c
	(9.48.2.1), bintopsb.c (9.71.2.1), bitstr.h (1.9.2.1), boot.c
	(9.103.2.1), cmpgc.h (1.30.2.1), cmpint.c (1.91.2.1), cmptype.h
	(1.2.2.1), config.guess (1.1.2.1), config.h (9.101.2.1), config.sub
	(1.1.2.1), configure.in (1.1.2.1), confshared.h (1.1.2.1), const.h
	(9.45.2.1), debug.c (9.50.2.1), default.h (9.43.2.1), dmpwrld.c
	(9.39.2.1), dosasutl.asm (1.4.2.1), dosconio.c (1.13.2.1), dosenv.c
	(1.10.2.1), dosexcp.c (1.6.2.1), dosexcp.h (1.4.2.1), dosfg.c
	(1.4.2.1), dosfile.c (1.4.2.1), dosfs.c (1.6.2.1), dosi10.asm
	(1.3.2.1), dosinsn.h (1.3.2.1), dosint10.c (1.9.2.1), dosint10.h
	(1.3.2.1), dosio.c (1.9.2.1), dosio.h (1.5.2.1), doskbd.c
	(1.13.2.1), doskbd.h (1.3.2.1), doskbutl.asm (1.7.2.1), dosscan.h
	(1.5.2.1), dosselec.h (1.3.2.1), dossig.c (1.17.2.1), dossys.c
	(1.5.2.1), dossys.h (1.3.2.1), dosterm.h (1.3.2.1), dostop.c
	(1.13.2.1), dostop.h (1.3.2.1), dostrap.c (1.7.2.1), dostrap.h
	(1.4.2.1), dostterm.c (1.3.2.1), dostty.c (1.4.2.1), dosutil.c
	(1.3.2.1), dosutil.h (1.3.2.1), dosx32.c (1.7.2.1), dosxcutl.asm
	(1.8.2.1), error.c (1.6.2.1), extern.h (9.56.2.1), fasdump.c
	(9.63.2.1), fasload.c (9.87.2.1), findprim.c (9.53.2.1), foreign.c
	(1.2.2.1), foreign.h (1.2.2.1), gccode.h (9.56.2.1), hooks.c
	(9.58.2.1), hppacach.h (1.5.2.1), hppanwca.c (1.4.2.1), install-sh
	(1.1.2.1), interp.c (9.89.2.1), intrpt.h (1.20.2.1), liarc.h
	(1.14.2.1), lookprm.c (1.11.2.1), lookup.c (9.57.2.1), lookup.h
	(9.51.2.1), memmag.c (9.65.2.1), memmag.h (1.7.2.1), missing.c
	(9.32.2.1), msdos.h (1.7.2.1), mul.c (9.34.2.1), nt.h (1.8.2.1),
	ntgui.c (1.27.2.1), ntio.c (1.22.2.1), ntsig.c (1.21.2.1), nttop.c
	(1.29.2.1), nttrap.c (1.17.2.1), nttterm.c (1.3.2.1), object.h
	(9.49.2.1), option.c (1.54.2.1), os.h (1.6.2.1), os2pmcon.c
	(1.25.2.1), oscond.h (1.26.2.1), osio.h (1.14.2.1), osscheme.c
	(1.10.2.1), osscheme.h (1.10.2.1), outf.c (1.11.2.1), posixtyp.h
	(1.16.2.1), ppband.c (9.49.2.1), prbfish.c (1.8.2.1), prdosenv.c
	(1.11.2.1), prdosfs.c (1.5.2.1), primutl.c (9.72.2.1), prntenv.c
	(1.9.2.1), prntfs.c (1.15.2.1), prosenv.c (1.16.2.1), prosfs.c
	(1.14.2.1), prosproc.c (1.18.2.1), pruxdld.c (1.12.2.1), pruxenv.c
	(1.18.2.1), pruxfs.c (9.55.2.1), pruxio.c (1.7.2.1), pruxsock.c
	(1.17.2.1), psbmap.h (9.43.2.1), regex.c (1.19.2.1), scheme.h
	(9.38.2.1), storage.c (9.56.2.1), syntax.c (1.24.2.1), syscall.h
	(1.12.2.1), term.c (1.14.2.1), termcap.c (1.6.2.1), terminfo.c
	(1.3.2.1), trap.h (9.44.2.1), utils.c (9.74.2.1), ux.c (1.19.2.1),
	ux.h (1.73.2.1), uxctty.c (1.13.2.1), uxenv.c (1.19.2.1), uxfile.c
	(1.9.2.1), uxfs.c (1.19.2.1), uxio.c (1.44.2.1), uxproc.c
	(1.25.2.1), uxsig.c (1.34.2.1), uxsig.h (1.5.2.1), uxsock.c
	(1.25.2.1), uxterm.c (1.27.2.1), uxtop.c (1.24.2.1), uxtrap.c
	(1.29.2.1), uxtrap.h (1.28.2.1), version.h (11.174.2.1), wabbit.c
	(1.7.2.1), x11base.c (1.75.2.1), xdebug.c (9.33.2.1),
	cmpauxmd/hppa.m4 (1.38.2.1), cmpauxmd/m4-dos (1.1.2.1),
	cmpauxmd/makefile (1.6.2.1), cmpauxmd/mc68k.m4 (1.26.2.1),
	cmpauxmd/vax.m4 (1.3.2.1), cmpintmd/i386.h (1.31.2.1),
	makegen/Makefile.in.in (1.1.2.1), makegen/files-core.scm (1.1.2.1),
	makegen/files-gc-bch.scm (1.1.2.1), makegen/files-gc-std.scm
	(1.1.2.1), makegen/files-optional.scm (1.1.2.1),
	makegen/files-os-prim.scm (1.1.2.1), makegen/files-other.scm
	(1.1.2.1), makegen/files-unix.scm (1.1.2.1), makegen/m4.sh
	(1.1.2.1), makegen/makegen.scm (1.1.2.1), makegen/makeinit.sh
	(1.1.2.1), ntutl/config.h (1.1.2.1), ntutl/makefile.wcc (1.13.2.1),
	ntutl/ntgui.rc (1.9.2.1), os2utl/config.cmd (1.3.2.1),
	os2utl/config.h (1.1.2.1), os2utl/makefile (1.14.2.1),
	os2utl/makefile.cmn (1.12.2.1), os2utl/makefile.emx (1.8.2.1),
	os2utl/makefile.gcc (1.6.2.1), os2utl/makefile.vac (1.6.2.1),
	os2utl/makefile.wcc (1.7.2.1): * Convert microcode to use autoconf
	in place of custom configuration   mechanism.  Change major version
	of microcode to 14 (skipping 12 and   13 that were used for
	unreleased versions).
	
	* Write Scheme program to generate "Makefile.in" from a template.  
	 This program automatically generates compilation dependencies, but
	   it depends on having gcc to do this.
	
	  I tried using automake to do this, but it's not powerful enough
	to
	  handle definition of a program in which the component files are
	  selected at configure time.
	
	* Rename old "config.h" to "confshared.h".  New "config.h"  
	automatically generated by autoconf on unix systems; hand-written  
	for Win32 and OS/2.  Make sure all files now include "config.h".   
	Eliminate references to "oscond.h" and "posixtyp.h"; merge the	 
	functionality of those files into "config.h".  "confshared.h"	
	includes "ansidecl.h" so eliminate most references to the latter.  
	 Completely rewrite "ux.h"; new revision is considerably simplified
	   since autoconf takes care of most of the details.
	
	* Rename a number of preprocessor symbols:
	
		OLD NAME			NEW NAME
		========			========
		WINNT				__WIN32__
		_HPUX				__HPUX__
		_IRIX				__IRIX__
		_OS2				__OS2__
		_POSIX				_POSIX_VERSION
		_UNIX				__unix__
		__linux 			__linux__
		i386				__IA32__
		HAS_FLOOR			HAVE_FLOOR
		HAS_FREXP			HAVE_FREXP
		HAS_MODF			HAVE_MODF
		HAVE_APPEND			O_APPEND
		HAVE_BSD_TTY_DRIVER		HAVE_SGTTY_H
		HAVE_ITIMER			HAVE_SETITIMER
		HAVE_SYMBOLIC_LINKS		HAVE_SYMLINK
		HAVE_SYSV3_SIGNALS		HAVE_SIGHOLD
		HAVE_SYSV_SHARED_MEMORY 	USE_SYSV_SHARED_MEMORY
		HAVE_TERMIO			HAVE_TERMIO_H
		HAVE_TERMIOS			HAVE_TERMIOS_H
		RELEASE 			SCHEME_RELEASE
		SUBVERSION			SCHEME_SUBVERSION
		USE_HOSTENT_ADDR		!HAVE_HOSTENT_H_ADDR_LIST
		VERSION 			SCHEME_VERSION
	
	* Change names containing "winnt" to contain "win32" instead.	
	Change names containing "i386" to contain "ia32" instead.
	
	* Make numerous changes to eliminate warnings reported by "gcc
	-Wall".
	
	* Modify PTY code to incorporate ideas from libzvt in GNOME.  This 
	 was needed to get unix98 PTYs working in GNU/Linux.  Use runtime  
	test to decide if PTYs are available (in systems that lack
	grantpt),   since there's no way to determine this at configure or
	compile time.
	
	* Use poll in preference to select if both are available. 
	Previously   poll was used in one place and select in another.
	
	* Use `tm_gmtoff' if it is available in `struct tm'.  GNU libc and 
	 FreeBSD both support `tm_gmtoff' with the same meaning.  The  
	`timezone' variable is defined in FreeBSD, but with a completely  
	different meaning.
	
	* Change handling of baud rates to make it more portable.
	
	* Change handling of M4 files; implement new shell scripts to do  
	expansion while passing parameters on the command line.  Always use
	  these scripts, since they are portable.
	
	* Change default type-code length on systems with compiled-code  
	support to be 6 rather than 8.	This simplifies the definition of  
	those systems since we were always overriding the type-code length 
	 on them.
	
	* Completely rewrite compilation dependencies for Win32 and OS/2  
	makefiles.  New dependencies are quite detailed, directly reflect  
	the source code, should now be accurate.
	
	* Eliminate all DOS files and all references to DOS.  Eliminate all
	  the code for the case where WINNT_RAW_ADDRESSES was undefined,
	since	that was DOS-specific.

2000-11-26 01:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.42): Add workaround for bug in
	Courier-IMAP.

2000-11-25 23:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.69): Add Emacs mail-sending feature that
	prompts for confirmation if user tries to send same mail twice.

2000-11-20 08:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: chrsyn.scm (1.2), chrsyn.scm (1.3): Fix thinko.

2000-11-19 18:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.34): Change
	IMAIL-SUMMARY-POP-UP-MESSAGE-BUFFER to use POP-UP-BUFFER again. 
	This should fix the problem of over-splitting windows.	Don't use
	IMAIL-SUMMARY-POP-UP-MESSAGE-BUFFER for fixed layout; instead
	simplify that logic to use WINDOW-SPLIT-VERTICALLY!.  Eliminate
	SYNC-IMAIL-SUMMARY-BUFFER which was used in only one place.

2000-11-13 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.220), imail.pkg (1.78): Add variable
	imail-output-default at Hal's request.

2000-11-02 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.20): Eliminate restriction on blowfish
	encryption.  New US crypto regulations permit us to export this
	code now.

2000-10-30 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.141): Fix bug: previously, selecting one of
	the buffers of a visible layout into a window that held a different
	buffer of that layout would leave the layout marked as visible. 
	This fix notices this case and unmarks the layout.  However, the
	selection of the buffer causes the layout to be reselected, which
	means the operation has no net effect.

2000-10-30 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comwin.scm (1.146): Don't delete a window if it's already
	deleted.

2000-10-30 10:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.53): Fix bug:
	SELECT-CONTINUATION-BROWSER-BUFFER called BROWSER-SELECT-LINE
	assuming that the buffer it had specified for selection was already
	selected; this turned out not to be true.  So modify the code to
	pass the buffer explicitly rather than depend on selection.  Also
	tweak code that prompts for X window geometry so that it re-prompts
	if the user's input isn't valid.

2000-10-30 10:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.140): Fix bug: UNDO-LEAVE-WINDOW! was being
	called on the wrong window from SELECT-SCREEN and SELECT-WINDOW. 
	Also change order of arguments to CHANGE-SELECTED-BUFFER to match
	order used most other places in this file.

2000-10-30 10:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.140), prompt.scm (1.190): Don't abort prompt
	when an input event arrives; process the event and restart the
	prompt.  There may be subtle problems with this strategy; find and
	fix them.

2000-10-27 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.33): Fix fencepost error that caused
	the wrong number of columns to be allocated for the message number
	when the folder was exactly a power of ten.

2000-10-27 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.21): Update version to reflect recent changes.

2000-10-27 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.130): Deselect any buffer layout before
	popping up a new window.

2000-10-27 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.139): When killing buffer, it's possible to
	signal an error if there are no other buffers.	Previously, this
	error could have been signalled _after_ the killing procedure had
	already killed off any buffer process, run the kill hooks, etc. 
	Now the error test is done first, and if the error is signalled, no
	other action is taken.

2000-10-26 23:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.32): In previous change, forgot to
	select the folder buffer after creating a new window to hold it.
	
	Don't create a new window to hold the folder buffer if it is
	already visible somewhere.
	
	Simplify logic of layout selector now that SELECT-BUFFER will no
	longer cause the layout selector to run again.

2000-10-26 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.138): Change MAYBE-SELECT-BUFFER-LAYOUT so
	that it does nothing if called while running a layout selector;
	this will prevent infinite recursions and that otherwise occur
	quite easily while instantiating the layout.
	
	Simplify MAYBE-SELECT-BUFFER-LAYOUT so that it doesn't do anything
	unless the layout is changing.	Previously indirect tests were
	used, now we just compare the current layout with the proposed
	layout and implement the changes.

2000-10-26 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.178): Allow ->BUFFER to take a window as an
	argument.

2000-10-26 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.31): Don't use POP-UP-BUFFER to split
	the window; use WINDOW-SPLIT-VERTICALLY! instead.  Also, tweak
	fixed layout generator so that it doesn't go into infinite
	recursion.

2000-10-26 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comwin.scm (1.145), curren.scm (1.137): Add code to mark
	buffer layout inactive when one of its windows is deleted.

2000-10-26 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.121): In WITH-OUTPUT-TO-HELP-DISPLAY, don't
	change window/buffer arrangement until after the argument thunk has
	been executed.

2000-10-26 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.136): Adjust interrupt locking of
	buffer-layout code.  When selecting buffer layouts, ignore buffer
	selections in the typein window.

2000-10-26 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.63): Fix long-standing bug that occurred when
	using multiple screens with a window manager that supports multiple
	workspaces: switching workspaces sometimes caused an error to be
	signalled by X-WINDOW-SET-INPUT-FOCUS.	The problem is that the
	workspace switch caused all of Edwin's windows to be unmapped. 
	Depending on the order in which the unmap events arrived, Edwin
	might have queued a request to select another screen.  But since
	all of the screens were unmapped at the time the request was
	processed, the attempt to set the input focus to one of these
	unmapped screens always generated an error.
	
	The fix eliminates the code that tried to select another screen. 
	Instead we depend on the window manager to tell us when another
	screen needs to be selected.

2000-10-26 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.62): Add event-tracing facility.

2000-10-26 12:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.219): M-x imail-save-attachment should
	also work when invoked from the summary buffer.

2000-10-26 12:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.30): Only create buffer-layout when
	summary buffer is created, not when it is being reused.

2000-10-26 11:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rfc822.scm (3.3): Fix bugs in address parsing, reported by
	hal.

2000-10-26 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.135): Don't call MAYBE-SELECT-BUFFER-LAYOUT
	unless the selected buffer has really changed.

2000-10-26 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.29), imail.pkg (1.77), imail-top.scm
	(1.218): Delete imail-auto-summary feature.  Instead implement
	imail-summary-fixed-layout feature that uses new buffer-layout
	mechanism.

2000-10-26 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.134): Move call to MAYBE-SELECT-BUFFER-LAYOUT
	outside of WITHOUT-INTERRUPTS.	Also call
	MAYBE-SELECT-BUFFER-LAYOUT from MAKE-SCREEN.

2000-10-26 00:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.133): Fix indentation.

2000-10-26 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.129): Fix thinko.

2000-10-26 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.132): Don't reselect an already-selected
	window or buffer.

2000-10-26 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.128): Implement SCREEN option to
	POP-UP-BUFFER.

2000-10-26 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.131): Eliminate references to
	SELECT-BUFFER-IN-WINDOW.  Change buffer-layout mechanism so that it
	is called _after_ the initial buffer is selected.

2000-10-26 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.58), bufmnu.scm (1.131), debug.scm (1.52),
	snr.scm (1.59), vc.scm (1.74): Eliminate references to
	SELECT-BUFFER-IN-WINDOW.

2000-10-25 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.130): Guarantee that all buffers in a buffer
	layout are alive at the time of selection.

2000-10-25 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.129): Add some interrupt locking to
	buffer-layout mechanism.  Fix thinko.

2000-10-25 22:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.103): Update version to reflect new
	initialization mechanism.

2000-10-25 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.217): Comment out call to
	ADD-PRE-SELECT-BUFFER-HOOK.  This procedure is about to be removed
	from Edwin.  It will shortly be replaced by a different mechanism.

2000-10-25 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.128): Eliminate pre-select-buffer-hooks
	mechanism from previous change.  This turns out not to work quite
	right for the problem at hand.	Instead implement a buffer-layout
	mechanism that should solve the problem more neatly.

2000-10-25 22:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.121), dosproc.scm (1.5), editor.scm
	(1.249), edwin.pkg (1.264), input.scm (1.102), intmod.scm (1.110),
	process.scm (1.58), prompt.scm (1.189): Implement general mechanism
	for initializing editor state when editor is created.

2000-10-25 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.127): Add pre-selection buffer hooks.  These
	hooks allow a buffer to intercede in its selection.

2000-10-20 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.76): Forgot to export a couple of variables to
	implement auto-summary.

2000-10-20 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.28): Implement new editor variable
	imail-summary-height to allow the user to specify the height of the
	summary buffer.  Normally this is set to 1/4 making the summary 1/4
	the height of the screen.

2000-10-20 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.127): Add option to POP-UP-BUFFER to allow
	the argument to WINDOW-SPLIT-VERTICALLY! to be supplied.

2000-10-20 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.75), imail-top.scm (1.216): Add new editor
	variable imail-auto-summary that allows a summary buffer to be
	automatically selected whenever an imail buffer is.

2000-10-19 22:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.52): Fix bug: FLAGS->RMAIL-MARKERS was
	clobbering its argument to remove the "seen" flag.  This caused
	messages to be marked "unseen" when they were written to an RMAIL
	file.

2000-10-19 20:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.114), imail-rmail.scm (1.51),
	imail-umail.scm (1.40): Fix bug: WRITE-HEADER-FIELDS was generating
	the blank-line separator, but all of the callers assumed that it
	wasn't.  So messages were being written with an extra newline.

2000-10-19 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.39): Deal with errors coming from
	CTIME-STRING->UNIVERSAL-TIME.  Add option to WRITE-UMAIL-MESSAGE to
	suppress the IMAIL flags.

2000-10-19 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.33): Allow ctime() input strings to lack
	seconds field.	This isn't strictly correct but occurs sometimes on
	unix-mail from lines.

2000-10-17 13:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.25): FreeBSD doesn't define socklen_t; add
	conditional definition.

2000-10-16 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/bootstrap.sh (1.4): Fix some typos.  Adjust script so that it
	can be called again on a partially-processed tree.

2000-10-16 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/bootstrap-compile.scm (1.7): Load CREF only if not already
	loaded.

2000-10-16 14:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/build-tree.sh (1.4): Add back stuff for unsupported
	directories.

2000-10-16 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/bootstrap.sh (1.3): Extensive changes to integrate microcode
	compilation into the script.

2000-10-16 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: bootstrap-compile.scm (1.5), bootstrap-compile.scm (1.6):
	Forgot to load CREF.

2000-10-16 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/bootstrap-compile.scm (1.4): Fix typo.

2000-10-16 14:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: bootstrap-compile.scm (1.3), bootstrap.sh (1.2): Load files
	using stdin redirection.

2000-10-16 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/bootstrap-compile.scm (1.2): Must load CREF before compiling
	other stuff.

2000-10-16 14:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/: bootstrap.sh (1.1), bootstrap-compile.scm (1.1),
	build-compiler.scm (1.1), build-edwin.scm (1.1), build-runtime.scm
	(1.1): Initial revision.

2000-10-16 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/optiondb.scm (1.2): CREF loader not needed after all.

2000-10-16 14:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/build-tree.sh (1.3): Eliminate unsupported directories.

2000-10-16 14:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/build-tree.sh (1.2): Add copyright notice.

2000-10-16 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/build-tree.sh (1.1): Imported from /scheme/etc/.

2000-10-16 14:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* etc/optiondb.scm (1.1): Moved from dist directory.

2000-10-16 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: option.c (1.54), version.h (11.174): If no band is
	explicitly specified, and the default band doesn't exist, look for
	alternatives.

2000-10-13 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.188): Update version number of runtime
	system to reflect change to semantics of internal definitions. 
	Update release number because it's time to do another release.

2000-10-13 20:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: lambda.scm (14.16), lambdx.scm (14.9): Eliminate old
	optimization that reused lambda parameters for internal definitions
	of the same name.  This needlessly complicated the semantics, and
	the optimization is no longer interesting (if it ever was).
	
	Thanks to the 6.001 staff for bringing this to my attention.

2000-09-30 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.24): Fix bug: when a call to connect gets
	EINTR, one can't just restart the connect, because it might be
	waiting for a packet from the other end of the connection. 
	Instead, it's necessary to wait for the connect to finish (using
	select), and then check the SO_ERROR option to see if it succeeded
	or failed.

2000-09-30 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.75): In X-WINDOW-CLEAR, if the clip
	rectangle is disabled, call XClearWindow rather than XClearArea. 
	This clears pixels in internal border, if any.

2000-09-30 22:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.27): Fix bug: xterm_dump_rectangle, when
	given the coordinates of a window that wasn't exactly a multiple of
	the character size, would dump characters at the edges of the
	window.  Instead, it must clip the rectangle to the character size
	of the window.

2000-09-30 21:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.73): Fix bug: can't ever use absolute pathnames
	with CVS, because if repository is remote they don't make sense.

2000-09-29 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.27): When using
	imail-summary-scroll-msg-* commands, if the message buffer and
	summary buffer have different messages selected, change the message
	buffer to match the summary buffer.

2000-09-29 20:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.215): Don't count a message as unseen if
	it is deleted -- even if the SEEN flag isn't set.  It's common to
	delete messages without seeing them, and the act of deletion is an
	indication that the user isn't interested in seeing them.
	
	However, don't mark these messages as seen; they might later be
	undeleted, in which case they want to retain their unseen status.

2000-09-25 12:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.111): Note regarding parsing in the presence of
	Rmail file corruption.

2000-09-11 17:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.50): Make sure that Rmail messages have
	an internal time, even if it's completely bogus.

2000-09-11 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.32): Compensate for old message data
	format that lacked seconds.

2000-09-11 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.31): Add workaround for very old arpanet
	message date format.

2000-09-11 13:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.160): Bind VC keys only if VC is loaded.

2000-09-06 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.214): Add UTF-8 to list of known charsets.

2000-09-06 12:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.213): Tweak adaptive-fill-regexp so that
	it accepts prefixes of the form "> >".

2000-09-06 12:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tparse.scm (1.75): Extensive redesign of
	OPERATE-ON-INDIVIDUAL-PARAGRAPHS, to treat regions with different
	fill prefixes as separate paragraphs.  This is similar to what
	Emacs does but not exactly the same: we are more strict about
	noticing prefix changes.

2000-09-06 11:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.212): Tweak adaptive-fill-regexp so that
	it accepts prefixes of the form "> >".

2000-09-06 11:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fill.scm (1.70), tparse.scm (1.74): Extensive redesign of
	OPERATE-ON-INDIVIDUAL-PARAGRAPHS, to treat regions with different
	fill prefixes as separate paragraphs.  This is similar to what
	Emacs does but not exactly the same: we are more strict about
	noticing prefix changes.

2000-09-06 11:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: htmlmode.scm (1.4), tparse.scm (1.73), tximod.scm (1.24):
	Change paragraph-separate and paragraph-start so that they will
	work when not at a line start.	This is necessary so that they
	interact properly with fill prefixes.

2000-09-06 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.69): Undo previous change -- it wasn't
	equivalent code.

2000-09-05 23:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.68): Simplify overly-complex logic.

2000-08-21 00:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.72): Change VC-BACKEND-LOCKING-USER so that it
	doesn't call VC-WORKFILE-MODIFIED?.  The problem is that the latter
	can call VC-BACKEND-DIFF, which requires access to the CVS server. 
	However, since VC-BACKEND-LOCKING-USER is called by VC-MODE-LINE,
	this meant that every time the mode-line changed, we had to probe
	the server.  This patch eliminates that requirement.
	
	The patch also tries to notice the results of user-initiated diffs,
	and update the mode-line's idea of whether the file is modified. 
	However, Emacs doesn't seem to behave quite the same way.  Maybe
	this is a bad idea and should be reverted.

2000-08-20 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/load.scm (1.2): Now need regular expressions.

2000-08-20 00:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.27): Add code to strip off remote-repository
	prefix in "CVS/Root" files.  This assumes that the repository is
	actually local but is being accessed using a remote mechanism.
	
	The right thing to do might be to generate the log using cvs and
	then merge it, but this is quite a pain.

2000-08-18 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.71): Eliminate use of absolute pathnames in CVS
	commands; this precludes use of remote access methods.

2000-08-18 12:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.59): Fix bug: copying messages from IMAP
	folder to umail folder didn't work, because that operation depended
	on being able to get the message body as a string.  But the
	operation that provided the message body in that format was
	eliminated.

2000-08-18 11:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.44): Don't use POLLNORM; use POLLIN instead.

2000-08-06 22:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.135): Fix bug: directory node wasn't being
	correctly recorded in the info history, causing the l command to
	fail.

2000-08-06 21:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.20): Update version to reflect changes to
	imail-summary keyboard bindings.

2000-08-06 21:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.26): Fix scrolling in summary buffer
	to be more like that of Rmail.	Move M-x
	imail-summary-select-message to #\e rather than #\space, since
	#\space and #\rubout are needed by the scrolling commands.

2000-08-04 22:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.144), imail-file.scm (1.58): Fix
	over-long pages.

2000-08-04 21:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.113), imail-file.scm (1.57),
	imail-imap.scm (1.143), imail-summary.scm (1.25): Add new folder
	operation, PRELOAD-FOLDER-OUTLINES, which is a hint to the folder
	implementation that the front end is about to request header and
	length information for all messages in the folder.  This allows the
	folder to choose a more-optimal download strategy.  The operation
	is invoked by the folder-summary code.
	
	Ad-hoc testing indicates that this has a qualitative effect on
	performance for folders containing about 100 or more messages.

2000-08-02 09:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.142): Additional optimization: load flags
	with UIDs in initial download.

2000-08-02 09:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.141): Change slot reflectors: previously
	we loaded flags, length, and headers for all messages when opening
	a folder and displaying it.  This took a long time for medium-sized
	folders.  Now, load each of these components separately.  In
	particular, only the flags are needed for most messages, so this
	considerably speeds up the initial load.

2000-07-28 11:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.24): Change POP-UP-BUFFER in several
	ways: (1) SELECT? argument is now required; (2) optional argument
	NOT-CURRENT-WINDOW? has been replaced by a list of option symbols;
	(3) when popping into an existing window, if it's the previously
	popped-up window, it's returned.

2000-07-28 11:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: wincom.scm (1.126), abbrev.scm (1.5), bufmnu.scm (1.130),
	debug.scm (1.51), os2.scm (1.50), sendmail.scm (1.68), unix.scm
	(1.109), vc.scm (1.70), webster.scm (1.5): Change POP-UP-BUFFER in
	several ways: (1) SELECT? argument is now required; (2) optional
	argument NOT-CURRENT-WINDOW? has been replaced by a list of option
	symbols; (3) when popping into an existing window, if it's the
	previously popped-up window, it's returned.

2000-07-21 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.211): Fix bug: allow user to specify no
	confirmation.

2000-07-19 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.67): Make sure continuation lines of
	mail-buffer headers are properly indented.

2000-07-11 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.210): Change key binding of
	imail-summary-by-flags to be C-M-l for compatibility with Rmail.

2000-07-08 21:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.26): Another newline-convention tweak.

2000-07-08 21:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.20): Add imail documentation directory.

2000-07-08 21:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.140): Suppress user name in IMAP URL when
	it is same as current uname.

2000-07-07 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.15), runtime/rexp.scm (1.15): Fix harmless bug
	in REXP?

2000-07-06 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.139): Don't fire up IMAP connection just
	to determine container string of URL.  Instead, use namespace info
	only if already available.  Consequently restructure code that
	looks up/creates connections.

2000-07-05 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.66): Read non-text attachments in binary
	mode.

2000-07-05 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.209): Use new
	GLOBAL-MAILER-VERSION-STRING.

2000-07-05 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.65), edwin.pkg (1.263): Add
	GLOBAL-MAILER-VERSION-STRING.

2000-07-05 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.56): Fix bug in file URL parsing for
	DOS-style pathnames.

2000-07-05 16:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.55): Add URL encode/decode to file URLs. 
	Fix typo in HEADER-FIELDS->INTERNAL-TIME.

2000-07-05 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.49), imail-umail.scm (1.38): Fix bug:
	code to create new file folders wasn't writing the folders out.

2000-07-05 15:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.54), todo.txt (1.110): Change file URL
	syntax to obey RFC 1738.

2000-07-05 15:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.53), imail-rmail.scm (1.48),
	imail-umail.scm (1.37): Change file URL syntax to obey RFC 1738.

2000-07-05 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: pathnm.scm (14.33), runtime.pkg (14.355): Define
	procedure HOST/TYPE-NAME.

2000-07-05 14:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.208): In M-x imail-get-new-mail (and M-x
	imail), move to first unseen message even if the server probe
	reveals no new mail.  This is important because the new mail is
	usually fetched by the background probe thread.

2000-07-04 23:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.138): Reduce the traffic generated by
	completion code to determine if a mailbox has inferiors or not.

2000-07-04 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.16): Fix thinkos in mailbox-decoding
	procedure.

2000-07-04 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.15): Fix thinko in previous change.

2000-07-04 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.14): Fix some bugs in the IMAP URL
	parser.

2000-07-04 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.207): When examining prompt history,
	ignore malformed URLs that generate errors during parsing.

2000-07-04 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.13): Fix bugs in IMAP mailbox
	encode/decode procedures.

2000-07-04 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.74): "imail-umail" and "imail-rmail" should be
	in subfolders of "imail-file".

2000-07-04 20:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.137): Add calls to mailbox encode/decode
	procedures.  These should have been put in long ago.

2000-07-04 20:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.73): Export mailbox-name encode/decode
	procedures.

2000-07-04 20:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.12): Change mailbox-name encode/decode
	to accept either string or substring.

2000-07-04 20:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/ed-ffi.scm (1.13): Adjust to reflect new packaging
	structure.

2000-07-04 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.72): "imail-umail" and "imail-rmail" should be
	in subfolders of "imail-file".

2000-07-04 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.206): Fix infinite loop that occurs when
	expunging all messages in folder.

2000-07-02 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.scm (1.40), imap-response.scm (1.41):
	Seriously simplify READ-LITERAL-TO-PORT by eliminating extra layer
	of buffering.

2000-07-02 22:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.39): Tweak.

2000-07-02 22:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.38): Canonicalize argument order to
	list-reading procedures.

2000-07-02 22:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.37): Fix two typos in READ-SET.

2000-07-02 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/url.scm (1.8), runtime/url.scm (1.8): Fix two typos.

2000-07-02 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.109): Trim some unnecessary items.

2000-07-01 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.71), todo.txt (1.108): Redesign packaging to
	break up the monolithic core.  There isn't very much
	cross-reference between these files.

2000-06-30 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.187), imail/load.scm (1.19): Update
	version to reflect impending release.

2000-06-30 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.102): Update version to reflect changes to
	support IMAIL.

2000-06-30 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.204), imail-top.scm (1.205): Don't
	inline text/plain entities that have disposition ATTACHMENT.

2000-06-30 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.64): File attachments should always have a
	disposition of ATTACHMENT.

2000-06-30 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.70), imail-imap.scm (1.136),
	imap-response.scm (1.36), todo.txt (1.107): Integrate MIME decoding
	into reading of MIME body parts.  Large attachments are now read
	directly into files.

2000-06-30 14:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.203), imail-imap.scm (1.135): Change
	definition of CACHE? argument to WRITE-MIME-MESSAGE-BODY-PART.	Now
	it may take the following values:
	
	#F	don't cache #T	cache <n>	conditionally cache; length
	of part is <n>

2000-06-30 13:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.134): Generalize IMAP:CATCH-NO-RESPONSE
	and use it in %APPEND-MESSAGE.

2000-06-30 13:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.112), imail-file.scm (1.52),
	imail-imap.scm (1.133): Eliminate unused AVAILABLE-FOLDER-NAMES. 
	This capability is available from the completion operations.

2000-06-30 13:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.132): Fix bug that caused server greeting
	to be thrown away.  Change handling of delimiter and namespace
	information, so that they are set by the front end rather than that
	back end.

2000-06-30 13:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.131): Now that IMAP URLs use a slash
	delimiter, I think it looks better to use the base name as the name
	of the buffer.

2000-06-29 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.106): Reprioritize list.  Change category of
	APPEND-MESSAGES.  Eliminate proposed option to quote original in
	replies using MIME.

2000-06-29 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.105): Don't bother with support for compressed
	mail files.  This isn't as important as I thought it was.

2000-06-29 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.104): Don't do anything special with "flagged"
	flag.

2000-06-29 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.51): Fix bug: file completion wasn't
	working right if the pathname being completed ended in a directory
	separator.

2000-06-29 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.50), imail-rmail.scm (1.47),
	imail-umail.scm (1.36): Simplify handling of file-URL completion:
	this is now identical for all file URLs, so have only one method
	for that class.

2000-06-29 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.46), imail-umail.scm (1.35), todo.txt
	(1.103): Modify RMAIL file reader to handle mixed RMAIL/umail
	files, as does the real RMAIL.	We don't bother with MMDF format,
	since that isn't used by any real systems any longer.

2000-06-29 18:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/print.sh (1.8): Change presentation order to place IMAP
	implementation ahead of file implementation.

2000-06-29 18:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.111), imail-rmail.scm (1.45),
	imail-top.scm (1.202), imail-util.scm (1.29), todo.txt (1.102):
	Revise representation of header-field objects, so that RFC-822
	quoting mechanism isn't part of the representation.  Value string
	of a header is now arbitrary text, and there is an explicit
	mechanism for converting the header value to RFC-822 format, by
	prepending tabs onto continuation lines.
	
	Additionally, there should no longer be any possibility of a
	low-level error being generating when parsing header fields of
	incoming messages.

2000-06-29 16:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.130): Change IMAP URLs to use / instead
	of server delimiter.

2000-06-29 14:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.129): Assume that heirarchy delimiter and
	NAMESPACE information never change.  Once information is cached,
	never erase it.

2000-06-29 14:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.128): Reduce extent of a few calls to
	WITH-OPEN-IMAP-CONNECTION.  Fix missing method specialization.

2000-06-29 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.201): Clarify selector-interpretation
	logic in SELECT-MESSAGE.

2000-06-29 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.200): Fix pagination.

2000-06-29 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: todo.txt (1.101), imail-imap.scm (1.127): Fix IMAP URL
	completion so that folders that both are selectable and have
	subfolders appear twice in the completions list, once with the
	hierarchy delimiter, and once without.

2000-06-28 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.100): Note about making IMAP URL completion
	handle folders that contain both messages and subfolders.

2000-06-27 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.199), imail.pkg (1.69): Restrict M-x
	imail-save-attachment to work only on attachments, not on in-line
	MIME parts.  Implement M-x imail-mouse-save-mime-entity and M-x
	imail-save-mime-entity.  Rename M-x imail-toggle-attachment to M-x
	imail-toggle-mime-entity.

2000-06-27 12:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.198): Decode BinHex 4.0 attachments.

2000-06-27 12:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.197): Decode BinHex 4.0 attachments.

2000-06-27 12:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.8): Add code to extract the data fork
	from a BinHex 4.0 input stream.  BinHex support is now complete.

2000-06-27 11:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.7): Implement more flexible rule for
	matching initial comment and colon of BinHex input.

2000-06-27 11:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.6): Change terminology: BinHex
	"decompression" -> "run-length decoding".

2000-06-26 22:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.196): Change behavior of M-x imail-forward
	so that negative argument means send with raw headers.	Eliminate
	MIME-ONLY value of imail-forward-all-headers, as it's no longer
	needed.

2000-06-26 22:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.195): Fix bug: key binding for M-x
	imail-toggle-message was already in use.

2000-06-26 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.194): Move MIME-decoding output ports to
	runtime system.

2000-06-26 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mime-codec.scm (14.5), runtime.pkg (14.354): Implement
	BinHex decompressor.

2000-06-26 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.193), imail.pkg (1.68), todo.txt (1.99):
	Show message in modeline of all buffers when there is unseen mail. 
	Variable imail-global-mail-notification controls this feature.

2000-06-26 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.191), imail-top.scm (1.192): When
	prompting for MIME info, if there's only one choice, don't bother
	prompting.

2000-06-26 15:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.190), imail.pkg (1.67), todo.txt (1.98):
	Implement M-x imail-toggle-attachment, which allows any part of a
	MIME-encoded message to be toggled between "in-line" and
	"out-of-line" format.  This is most useful for expanding small text
	attachments without writing them to a file first.

2000-06-26 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.52): Add additional procedures for searching
	through the space of text properties.

2000-06-26 12:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.51): Add additional procedures for searching
	through the space of text properties.

2000-06-26 11:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.66), imail-top.scm (1.189), todo.txt (1.97):
	Implement variable imail-mime-show-alternatives.

2000-06-23 21:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.110), imail-imap.scm (1.126),
	imail-top.scm (1.188): Fix bug: when current message and subsequent
	messages simultaneously deleted, was signalling an error, because
	the EXPUNGE responses were being processed one at a time, and the
	local model of the folder was out of sync with the server's model. 
	New strategy defers dealing with all of these changes until all of
	the responses have been processed, at which time both models are
	again synchronized.

2000-06-23 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.187): Fix problem with previous change:
	shouldn't automatically select new message when folder grows. 
	Instead, stay on current message unless it is deleted.

2000-06-23 21:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.186): Fix problem with previous change:
	shouldn't automatically select new message when folder grows. 
	Instead, stay on current message unless it is deleted.

2000-06-23 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.48), imail-rmail.scm (1.44), todo.txt
	(1.96), imail-file.scm (1.49): Preserve internal time when copying
	to rmail folder from any other type of folder, by writing a
	distinguished header field into the rmail file.

2000-06-23 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.125), imail-top.scm (1.185), todo.txt
	(1.95): Fix bug: when IMAP mailbox simultaneously accessed from two
	places, IMAIL wouldn't correctly update the message buffer under a
	variety of circumstances.  This turned out to be a confluence of
	several bugs in the code.

2000-06-23 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.124): Fix fencepost error.

2000-06-23 13:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.109): Add folder events to IMAP trace
	facility.

2000-06-23 11:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.184): Extend imail-forward-all-headers to
	have value MIME-ONLY.

2000-06-22 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.183): Mail buffer must have adaptive-fill
	regexps adjusted so that C-M-y works right.

2000-06-22 16:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.182), todo.txt (1.94): Use new hook to
	modify the "User-Agent" header.

2000-06-22 16:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.63): Change "X-Mailer" to "User-Agent"; add
	hook to allow mail reader to modify this string.

2000-06-21 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.24): Add missing entry for mime-codec.

2000-06-21 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.352), runtime.pkg (14.353): First cut
	at BinHex support.  This just does the decoding, without
	understanding the structure of the data stream.

2000-06-21 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mime-codec.scm (14.4), runtime.pkg (14.351): First cut
	at BinHex support.  This just does the decoding, without
	understanding the structure of the data stream.

2000-06-20 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.93): Note regarding bug with multiple
	simultaneous access.

2000-06-20 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.43): Tweak layout.

2000-06-20 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.108), imail-file.scm (1.47): Define
	HEADER-FIELD-LENGTH.

2000-06-20 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-umail.scm (1.34), imail-rmail.scm (1.42),
	imail-file.scm (1.46), todo.txt (1.92): Allow file completion to
	complete to any file.

2000-06-20 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.107): Repaginate.

2000-06-20 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.106): Allow arbitrary whitespace in IMAIL
	flags header, so that flags lines can be folded.

2000-06-20 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: todo.txt (1.90), todo.txt (1.91): Expand on note
	regarding header-field representation.

2000-06-20 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.23): Fix some thinkos.

2000-06-20 15:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.181): Simplify decision tree in
	CALL-WITH-AUTO-WRAPPED-OUTPUT-MARK.

2000-06-20 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.180): Share similar code from
	IMAIL-YANK-ORIGINAL and SELECT-MESSAGE.

2000-06-20 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.65): Export M-x imail-toggle-header.

2000-06-20 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.179): Redefine variable
	imail-mime-attachment-directory to be an override of the default
	behavior, which is to track the last directory written to.

2000-06-20 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.178): Share code that copies all messages
	from one folder to another.

2000-06-20 15:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.177): Fix typo.

2000-06-20 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.176): Change binding of
	imail-toggle-message to #\c-t.

2000-06-20 15:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.175): Fix bug: last change to
	IMAIL-MODE-LINE-SUMMARY-STRING had thinko that caused an error when
	viewing an empty mailbox.

2000-06-19 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.89): Add some new ideas from one of the
	reviews.

2000-06-19 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.174): Always show message counts and
	folder length in modeline.  It's confusing to omit this.

2000-06-19 18:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.105), imail-top.scm (1.173): Change
	definition of GET-ALL-HEADER-FIELD-VALUES to return a list of
	strings, rather than a comma-separated string.

2000-06-19 17:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/pwedit.scm (1.8): Rework handling of buffer properties so
	that command to toggle password field works anywhere in the field.

2000-06-19 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.123): Fix bug: when fetching MIME message
	part, must guarantee that the connection is open.

2000-06-19 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.172), todo.txt (1.88): Reimplement M-x
	imail-toggle-header (in addition to imail-toggle-message).

2000-06-19 16:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.171), todo.txt (1.87): Fix code that
	yanks original message into reply buffer.  Now the yanked code
	looks just like the formatted code in the original buffer, except
	that there are no attachments, and the line wrapping is adjusted to
	account for the indentation.

2000-06-19 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/clean.sh (1.2): Fix typo.

2000-06-19 08:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.86): New strategy for yanking MIME messages
	into reply buffer.

2000-06-19 01:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.104), imail-file.scm (1.45),
	imail-imap.scm (1.122), imail-rmail.scm (1.41), imail-umail.scm
	(1.33): Change interface for retrieving message bodies so that the
	body isn't always returned as a string, but instead is written to a
	port.  This will allow IMAP message to write their bodies directly
	to files, which is especially important for bodies that are too
	large to fit in memory.

2000-06-19 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.170): Fix bug: empty folder wasn't
	noticing new messages being added.

2000-06-19 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.169): Fix bug: when expunging last message
	in folder, IMAIL was generating an error.

2000-06-18 22:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.28): Simplify implementation of
	broken-pipe handler so that parts can be reused.

2000-06-18 21:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.121): Redo previous fix; was shutting
	down connection in cases where it shouldn't have.

2000-06-18 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.64), imail-core.scm (1.103), imail-top.scm
	(1.168): A handful of bug fixes, plus some clarifications.

2000-06-18 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.187), prompt.scm (1.188): Change
	PROMPT-HISTORY-STRINGS and SET-PROMPT-HISTORY-STRINGS! so that the
	history name may be #F, meaning use the default history.

2000-06-17 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.85): Note re imail-toggle-headers.

2000-06-16 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.167): Fix thinko.

2000-06-16 14:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.166): Large-scale editing pass over the
	front-end code.  Code should now be clearer and better organized.

2000-06-16 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.22), imail-top.scm (1.164), load.scm
	(1.18), imail-top.scm (1.165), imail.pkg (1.63): Large-scale
	editing pass over the front-end code.  Code should now be clearer
	and better organized.

2000-06-16 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.102), imail-file.scm (1.44),
	imail-rmail.scm (1.40): Eliminate notes that have been moved to
	todo file.

2000-06-16 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.62): Set NAME parameter on MIME file
	attachments.  Change key bindings in attachment browser; shouldn't
	use #\- for a command.

2000-06-16 13:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.43), imail-core.scm (1.101): Change
	status symbol FOLDER-MODIFIED to CACHE-MODIFIED.

2000-06-15 17:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/print.sh (1.7): Remove rfc822.scm from printout.

2000-06-15 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.61): Fix typo.

2000-06-15 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.163): Don't add gratuitous newlines to
	message presentation.

2000-06-15 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.60): Add attachments in time order;
	previous was reversed.

2000-06-15 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.35): Be very careful not to read
	beyond the end of a literal, as this might hang.

2000-06-15 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.120): If IMAP command doesn't complete
	normally, close the connection.

2000-06-15 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.59), edwin.pkg (1.262): Implement MIME
	attachment browser, with commands to add and delete attachments.

2000-06-15 16:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.58): Implement mime-attachments buffer for
	editing message attachments.

2000-06-15 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.162): Respect INLINE disposition if
	present.

2000-06-15 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.119): Fix bug: don't try to send LOGOUT
	command when socket is closed.

2000-06-15 15:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.21): Fix harmless typo.

2000-06-15 12:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.161): Implement variable
	imail-inline-mime-text-subtypes.

2000-06-15 12:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.160), imail.pkg (1.62), todo.txt (1.84):
	Implement variable imail-inline-mime-text-subtypes.

2000-06-15 11:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.159), imail.pkg (1.61): Implement M-x
	imail-first-unseen-message.

2000-06-15 11:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.83): Made changes to mime-codec to improve
	speed of quoted-printable decoder.

2000-06-15 11:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.3): Use substring search to speed up
	quoted-printable decoder.

2000-06-15 09:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.82): Potpourri of notes, and new section on
	MIME conformance.

2000-06-14 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.81): Note regarding integration of MIME
	decoding into the MIME body reader.

2000-06-14 23:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fill.scm (1.66), fill.scm (1.67): Fix fencepost error.

2000-06-14 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.158): Use new line-wrapping facility in
	Edwin.	Hopefully this will be fast enough to eliminate tedious
	delay of previous implementation.

2000-06-14 23:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.65): Implement procedures to wrap lines in
	paragraphs.

2000-06-14 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.20): Fix typo.

2000-06-14 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.157), imail.pkg (1.59),
	imail-summary.scm (1.19), imail.pkg (1.60): Implement new commands:
	 imail-bury	 imail-next-same-subject	
	imail-previous-same-subject

2000-06-14 21:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.18), imail.pkg (1.58), imail-top.scm
	(1.156): Implement M-x imail-summary-by-regexp and M-x
	imail-summary-by-topic.  Latter doesn't support WHOLE-MESSAGE
	option of Emacs because that would be dreadfully inefficient using
	IMAP.

2000-06-14 21:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.155): In description for imail-mode, don't
	show variables for imail-summary-mode.	Also, show value for each
	variable.

2000-06-14 21:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.154): Reconcile the key bindings with
	those of RMAIL in Emacs version 20.  Use new dynamically-generated
	help string feature of Edwin to generate the mode description for
	imail-mode.

2000-06-14 20:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: hlpcom.scm (1.120), docstr.scm (1.5), edwin.ldr (1.72):
	Allow description of a command, variable, or mode to be a thunk
	that evaluates to a string.

2000-06-14 20:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: docstr.scm (1.4), comman.scm (1.84), modes.scm (1.33),
	hlpcom.scm (1.119): Allow description of a command, variable, or
	mode to be a thunk that evaluates to a string.

2000-06-14 20:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.71): Allow description of a command, variable,
	or mode to be a thunk that evaluates to a string.

2000-06-14 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.118): Extend help output procedures to accept
	a port as an argument.

2000-06-14 20:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: hlpcom.scm (1.117), prompt.scm (1.186): Allow description
	of a command, variable, or mode to be a thunk that evaluates to a
	string.

2000-06-14 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.80): Add two suggestions from radhi.

2000-06-14 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.153), imail.pkg (1.57): Always inline
	top-level MIME text parts, even if the subtype isn't "plain". 
	Also, define new variable imail-known-mime-charsets, to allow the
	user to add other character sets that may be inlined.

2000-06-13 22:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.118): Change IMAP URL completion to work
	more like filename completion: completion shows only the elements
	at the top level of the mailbox being completed on.  Furthermore,
	non-selectable mailboxes are suffixed with the heirarchy delimiter
	to cue the user.

2000-06-13 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.57): Don't abbreviate MIME header fields in
	the header; only in subparts of a multipart message.

2000-06-13 22:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.152), imail.pkg (1.56), todo.txt (1.79):
	Implement variable imail-forward-using-mime to allow the user to
	disable the use of MIME for message forwarding.

2000-06-13 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.100), imail-file.scm (1.42),
	imail-imap.scm (1.117), imail-rmail.scm (1.39), imail-top.scm
	(1.151), imail-umail.scm (1.32), todo.txt (1.78): When renaming a
	folder, the default for the target is the container for the source.
	 When copying a folder, the default for the target is the base name
	of the source, merged into the container of the most recent copy
	target.

2000-06-13 17:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.150), todo.txt (1.77): Change M-x
	imail-get-new-mail so that it selects the first unseen message, or
	does nothing otherwise.  This will be more robust when
	resynchronizing the folder, and will also provide a command to move
	to the first unseen message.

2000-06-12 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.55), imail-top.scm (1.149): Implement
	variable imail-forward-all-headers.

2000-06-11 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.56), edwin.pkg (1.261): Add new variable
	mail-abbreviate-mime to control verbosity of MIME headers
	generated.

2000-06-11 23:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.55): Fix typo: "Content-Encoding" ->
	"Content-Transfer-Encoding".

2000-06-11 21:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.54), edwin/snr.scm (1.58), edwin/edwin.pkg
	(1.260), imail/todo.txt (1.76): Insert X-Mailer and Organization
	fields after user finished editing message, rather than cluttering
	up the user's buffer with them.

2000-06-11 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.148): Fix bug: imail-resend not selecting
	buffer.

2000-06-11 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/mousecom.scm (1.5): Use recommended scrolling of 5 lines
	rather than 10.

2000-06-11 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: mousecom.scm (1.4), modefs.scm (1.159): Add hack to
	utilize mouse wheel under X.

2000-06-11 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.17): Add bindings for up/down arrow
	keys, for mouse button one, and for mouse buttons 4 and 5 (scroll
	buttons on wheel mice).

2000-06-10 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.116), todo.txt (1.75): Use NAMESPACE
	information to setup prefix to URL prompts.

2000-06-10 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.54), imail-imap.scm (1.115),
	imap-response.scm (1.34): If server supports the NAMESPACE
	extension, use it to get namespace information and store it in the
	connection object.

2000-06-10 08:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.74): Note re: NAMESPACE feature.

2000-06-09 10:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.73): Potpourri.

2000-06-09 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.72): Note to change handling of "informational"
	headers in sent mail.

2000-06-09 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.147), imail.pkg (1.53): Eliminate
	variable imail-receive-mime.  User can toggle message to raw form
	to get similar effect.

2000-06-09 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.146): Take advantage of new MIME support
	in the mail-sending code.  Forward messages as attachments, and
	disable all MIME processing when resending messages.

2000-06-09 00:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.53), edwin.pkg (1.259): Another pass at
	the MIME stuff.  This one seems to work OK, by providing a way for
	imail-resend to disable MIME processing.  (Also, all MIME headers
	are stripped out before building up the MIME framework.)  This code
	now supports MIME attachments, although there needs to be a command
	to allow the user to attach a file or the original mail message (if
	any), and also there needs to be an attachment browser.

2000-06-08 17:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.52): Disable MIME-compliance checks.  There
	are strange interactions between them and forwarding/resending that
	cause trouble, and I don't have time to fix it right now.

2000-06-08 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.145): Don't allow user to edit resent
	mail.

2000-06-08 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.50), sendmail.scm (1.51): Initial attempt
	to guarantee MIME compliance when sending messages.

2000-06-08 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/mime-codec.scm (14.2): Fix bug: MIME requires that
	quoted-printable encodings use upper-case characters for hex
	digits.

2000-06-08 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.144): Fix compiler warning.

2000-06-08 16:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.143): Fix typo.

2000-06-08 16:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: occur.scm (1.5), edwin.pkg (1.258): Create new interface
	for programmatic invocation of M-x occur.

2000-06-08 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.71): Notes regarding insertion of messages into
	outgoing mail.

2000-06-08 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.142): Change sending of mail so that
	insertion of original mail into sent mail doesn't just use the
	formatted text from the IMAIL buffer, but instead uses the original
	message body.

2000-06-08 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.49): Add hook to allow custom hook to run
	when yanking original message into reply buffer.

2000-06-08 14:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.99): Extend ->HEADER-FIELDS to accept a
	string.

2000-06-08 14:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.48): Add hook to allow custom hook to run
	when yanking original message into reply buffer.

2000-06-08 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.141): Fix typo in previous change.

2000-06-08 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.10), ed-ffi.scm (1.12), fake-env.scm
	(1.4), imail.pkg (1.52), load.scm (1.17), rfc822.scm (1.10): Move
	RFC-822 support to Edwin proper.

2000-06-08 14:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rfc822.scm (3.2): Import RFC-822 support from IMAIL.

2000-06-08 13:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.257), rfc822.scm (3.1), rmail.scm (1.71),
	sendmail.scm (1.47), snr.scm (1.57), decls.scm (1.69), ed-ffi.scm
	(1.50), edwin.ldr (1.70): Import RFC-822 support from IMAIL.

2000-06-08 13:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.140), todo.txt (1.70): Show alternative
	forms as attachments in MIME multipart/alternative.  Don't show
	text messages with unknown encodings.

2000-06-08 12:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: mime-codec.scm (1.11), compile.scm (1.9), ed-ffi.scm
	(1.11), imail.pkg (1.51), load.scm (1.15), load.scm (1.16): Move
	MIME codecs from IMAIL into the runtime system.

2000-06-08 12:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: mime-codec.scm (14.1), optiondb.scm (1.9), runtime.pkg
	(14.350): Move MIME codecs from IMAIL into the runtime system.

2000-06-08 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.139), todo.txt (1.68), todo.txt (1.69):
	Restrict set of recognized character sets to US-ASCII, ISO-8859,
	and Windows-<n>.  Messages in other sets are treated as unknowns;
	character set appears in attachment descriptor.

2000-06-07 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.138): Change key binding of
	imail-copy-folder to C to be consistent with Dired.

2000-06-07 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.137): Fix documentation for M-x
	imail-rename-folder.

2000-06-07 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.136), imail.pkg (1.50): Implement M-x
	imail-rename-folder.

2000-06-07 22:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.10): Fix compiler warning.

2000-06-07 22:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.135), imail.pkg (1.49), todo.txt (1.67):
	Rewrite to use new MIME codecs.  Merge two auto-wrap variables into
	one.  Trailing newline no longer part of attachment's marked
	region.

2000-06-07 21:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.9): Rewrite the quoted-printable decoder,
	again.	This one is much simpler and works.

2000-06-07 14:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: mime-codec.scm (1.8), imail.pkg (1.48): Complete redesign
	of the MIME codecs.  This design is mostly working, except for the
	quoted-printable decoder, which is too complicated and still has
	some subtle bugs.

2000-06-07 09:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.66): Notes re incorrect selection by M-x
	imail-get-new-mail.

2000-06-07 08:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.65): Various notes regarding handling of MIME
	type and encoding.

2000-06-07 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (14.17): Fix another place still using the old
	newline convention.

2000-06-05 17:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.114): Undo previous change.  This was
	being handled elsewhere and was never removed from the to-do list.

2000-06-05 17:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.113), imail-top.scm (1.134), todo.txt
	(1.64): Generate message "No changes to save." from SAVE-FOLDER on
	an IMAP folder.

2000-06-05 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.112), imail-top.scm (1.133), todo.txt
	(1.63): Rename the procedures that form the UI callback interface
	to make it clear what their role is.

2000-06-05 17:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.132): When auto-wrap enabled, wrap at
	right margin rather than at fill-column.  Also, don't set
	truncate-lines.

2000-06-05 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.47), imail-core.scm (1.98), imail-imap.scm
	(1.111), imail-rmail.scm (1.38), imail-top.scm (1.131),
	imail-umail.scm (1.31): Unify handling of body cache.  Add editor
	variable to control the caching.

2000-06-05 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.46), imail-top.scm (1.130), todo.txt (1.62):
	Replace imail-toggle-headers with imail-toggle-message, which
	toggles between the standard and raw formats of a message.

2000-06-05 15:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.129): Update imail-mode help.

2000-06-05 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.116): Make help buffers read-only.

2000-06-05 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.110): Fix bug: a couple of places
	explicitly referenced the flag "\\recent" which was changed to
	"recent".

2000-06-05 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.109): When reading entire body of MIME
	message, use MESSAGE-BODY.

2000-06-05 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: todo.txt (1.61), imail-top.scm (1.128): Fix bug: When
	message was selected in IMAIL and deleted by a different user
	agent, IMAIL would end up in state where there is no selected
	message.  Now, it selects another message.

2000-06-05 13:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.127), imail-imap.scm (1.108),
	imail-core.scm (1.97): Change interface to MESSAGE-MIME-BODY-PART
	to specify whether to cache the part.

2000-06-05 13:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.139): Fix thinko from last change.

2000-06-05 13:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: todo.txt (1.60), imail-imap.scm (1.107): Store
	bodystructure in IMAP message in converted form, so conversion only
	happens once.

2000-06-05 13:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.126), todo.txt (1.59): Change attachment
	tag to show length of attachment.

2000-06-05 13:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.106), todo.txt (1.58): Add cache for
	MIME body parts.

2000-06-05 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.105): Save server capabilities for later
	reference.

2000-06-05 13:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.104): Map all IMAP system flags to names
	without leading backslash.

2000-06-05 09:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.57): Add some new items.

2000-06-05 09:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.125): Fix bug: don't signal error if
	attachment lacks a filename parameter.

2000-06-03 03:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.103): Fix bug: STATUS command returns a
	response!  (Duh)

2000-06-02 22:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.124): When saving attachment, check to see
	if file exists before blindly overwriting it.

2000-06-02 21:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.7): Change decoders to decode to a port
	rather than to a string.  This is almost always more efficient.

2000-06-02 21:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.123): Implement mechanism to save MIME
	attachments.  Reorganize this file a little to make sections more
	coherent.

2000-06-02 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.122): Add workaround for broken Netscape
	mailer.

2000-06-02 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.96): Change MIME bodystructure objects to
	have properties.

2000-06-02 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.121): Tweak attachment syntax slightly.

2000-06-02 13:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/things.scm (1.88): Eliminate usage of MARK-PERMANENT!.

2000-06-02 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.56): Ideas about MIME stuff.

2000-06-02 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.120): Fix bug in how message/rfc822
	entities were presented (headers were being shown twice).  Change
	text representation of attachments, and binding information to the
	buffer so that the attachment can later be saved.

2000-06-02 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.102): Fix bug: MIME disposition wasn't
	being converted to canonical form.

2000-06-02 13:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.95): Add MIME-BODY-PARAMETER.

2000-06-01 22:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/install.sh (1.4): Update to reflect new organization.

2000-06-01 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.55): Remove two suggestions prompted by Julie's
	problems with automatic conversion to quoted-printable.

2000-06-01 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.119): Show "text/plain" entities
	regardless of character set.  There are some pretty broken mailers
	out there (e.g. Outlook Express) that claim random character sets
	when they should be claiming "us-ascii".

2000-06-01 22:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.94): Print out <MIME-BODY> instances in
	more intelligible form.

2000-06-01 22:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.45), load.scm (1.14): Move Edwin variable
	exports back to "imail.pkg".  Add subsystem ID string for IMAIL.

2000-06-01 22:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.118): Refine the auto-wrap feature to have
	separate controlling variables for encoded and unencoded parts.
	
	Fix URL completion so that it verifies values correctly by calling
	URL-EXISTS?, and change callers to specify when the URL they are
	prompting for must exist.

2000-06-01 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.101), todo.txt (1.54): Implement
	URL-EXISTS? for IMAP folders.

2000-06-01 21:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.117): Add automatic wrapping of long lines
	in decoded MIME entities.

2000-06-01 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.100): Show progress when reading MIME
	body parts.

2000-06-01 20:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fill.scm (1.64), basic.scm (1.138): Change
	AUTO-FILL-BREAK so that it accepts a mark as an argument, and
	returns a boolean indicating whether it broke the line.

2000-06-01 16:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.116), imail.pkg (1.44), load.scm (1.13):
	Initial cut at MIME decoding support.

2000-06-01 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.99): Generalize MESSAGE-MIME-BODY-PART to
	allow passing selector ending in HEADER or TEXT.

2000-06-01 16:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.43): Load "mime-codec" after "imail-util" due
	to load-time dependencies.

2000-06-01 16:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.33): Signal an error if unable to
	parse BODY section in FETCH response.

2000-06-01 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/parser.scm (1.4): Fix two bugs in LIST-PARSER.

2000-06-01 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.98): Store MIME multipart components in a
	list rather than a vector.

2000-06-01 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.6): When decoding BASE64 text strings,
	must return two values.

2000-06-01 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.93), imail-imap.scm (1.97): Implement
	MESSAGE-MIME-BODY-PART.

2000-06-01 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.scm (1.32), imail.pkg (1.42): Implement
	IMAP:RESPONSE:FETCH-BODY-PART.

2000-06-01 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.5): Fix compiler warnings.

2000-06-01 14:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.8), ed-ffi.scm (1.10), imail.pkg (1.41):
	Add "mime-codec" to package.

2000-06-01 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.4): Add newline translation to BASE64
	decoder for case where the data being decoded is text.

2000-06-01 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.92), imail-file.scm (1.41),
	imail-imap.scm (1.96): Add generic interface to access MIME
	BODYSTRUCTURE information.

2000-06-01 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.txt (1.6): Fix two bugs in syntax.

2000-05-31 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap-url.scm (1.11), test-imap.scm (1.2): Removing
	files no longer in use.

2000-05-31 19:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/install.sh (1.3): Copy entire contents of directory to
	installation point.  This now matters so that copy in my directory
	will act as a branch for development.

2000-05-30 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.115): Fix typo.

2000-05-30 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.114): When showing progress meter, don't
	show percentage when amount read is either zero or the total
	amount.  This causes the display to flicker and provides no useful
	information.

2000-05-30 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.95): Use STRING->HEADER-FIELDS.

2000-05-30 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.27): Fix bug: STRING->LINES must not
	return an empty list.

2000-05-30 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.113), load.scm (1.12): Change M-x
	imail-input, M-x imail, and M-x imail-get-new-mail to more closely
	mimic their RMAIL counterparts.

2000-05-30 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.3): Fix typo in DECODE-QP-HEX-OCTET.

2000-05-30 09:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.53): Need command to move to first unseen
	message in folder.

2000-05-30 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.31): Rewrite READ-LITERAL with two
	aims: (1) to make the newline translation more efficient, and (2)
	to generalize it so that MIME decoding can be directly hooked in.

2000-05-29 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/strout.scm (14.14): GET-OUTPUT-FROM-ACCUMULATOR should
	return the internal accumulator string, rather than copying the
	string to a new one.  Since the internal accumulator is discarded,
	this is not a problem, and offers significant efficiency gains.

2000-05-29 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.30): Fix typo.

2000-05-29 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.29): Pull transcript handling from
	READ-LITERAL to new READ-SUBSTRING!-INTERNAL.

2000-05-28 11:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.28): Tweak conditions under which
	literal progress hook is called.

2000-05-28 11:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.27): Modularize line-ending
	translator.

2000-05-28 11:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.txt (1.5), imap-response.scm (1.26):
	Disambiguate the "section" form of the BODY response from the
	"bodystructure" form.

2000-05-27 23:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.94): Don't remove IMAP connections from
	the memoized list when they are closed.  Each folder retains a
	pointer to its connection after closing it, and may reopen the
	connection later.  When this happens, it defeats the purpose of the
	memoization.

2000-05-27 10:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.txt (1.4): Fix minor bug in description of
	FETCH BODY responses.

2000-05-26 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.2): Implement BASE64 decoder.

2000-05-26 20:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.26): Implement SKIP-LWSP-BACKWARDS.

2000-05-26 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/install.sh (1.2): Only install required files.

2000-05-26 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.112): Set truncate-lines to #t in buffer
	that pops up to show messages to be expunged.

2000-05-26 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/mime-codec.scm (1.1): Initial registration.

2000-05-26 13:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.93): Add ability to obtain envelope and
	bodystructure information from the server.

2000-05-25 18:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.92): Reorganize login code so that login
	errors are properly signalled.

2000-05-25 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.111), todo.txt (1.52): If M-x imail
	finds existing buffer visiting the folder, it just selects it and
	runs M-x imail-get-new-mail.

2000-05-25 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.110), todo.txt (1.51): Generalize
	imail-expunge-confirmation to make the type of prompt and the
	showing of message independently selectable.

2000-05-25 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.91), imail-top.scm (1.109): Don't store
	the user's pass phrase if the login fails.

2000-05-25 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.108), load.scm (1.11), todo.txt (1.50):
	Implement mechanism to poll the IMAP server in the background at a
	specified interval.

2000-05-25 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.90): Fix bug: must read message UIDs
	_before_ signalling folder event, as the event handler will usually
	access the folder, causing extra unnecessary traffic.

2000-05-25 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.89): Fix bug: must read message UIDs
	_before_ signalling folder event, as the event handler will usually
	access the folder, causing extra unnecessary traffic.

2000-05-24 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.248): Run inferior-thread output processors
	with interrupts enabled.

2000-05-24 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.107): Reply buffer must refer to the
	message buffer, not the current buffer.

2000-05-24 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.106): Fix typo that caused MOVE-RELATIVE
	to ignore its operation when moving backwards.

2000-05-24 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.10): Export
	EDWIN-VARIABLE$IMAIL-PASS-PHRASE-RETENTION-TIME.

2000-05-24 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.49): Minor changes.

2000-05-24 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.105): Add mechanism to erase stored
	passwords after the specified retention time that was in effect
	when they were stored.	This uses timer interrupts to guarantee
	that it happens even if the user walks away from the machine.

2000-05-23 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.30): Use pivot of 1970, since that is the
	date that will usually screw the unix libc functions.

2000-05-23 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.29): Do pivoting when deciding what a
	two-digit year means.  I can't believe that some programs still
	generate these strings!

2000-05-23 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.88): Fix bug: time stamp for APPEND might
	be #F.

2000-05-23 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rfc822.scm (1.9): Workaround another problem with broken
	mailers mangling received headers.

2000-05-23 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.104), todo.txt (1.48): Fix bug:
	retention time being interpreted in seconds rather than minutes. 
	Implement M-x imail-copy-folder.

2000-05-23 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.103), todo.txt (1.47): Add mechanism to
	control the retention time of IMAIL passwords.

2000-05-23 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/update-changelog.sh (1.2): Can't use backquote in this kind
	of script.

2000-05-23 16:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/update-changelog.sh (1.1): Initial registration.

2000-05-23 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.91), imail-file.scm (1.40),
	imail-imap.scm (1.87), imail-rmail.scm (1.37), imail-top.scm
	(1.102), imail-umail.scm (1.30), todo.txt (1.46): Change definition
	of SAVE-FOLDER so that it does the save only if there are changes
	to be saved, and returns true only if it does the save.  This
	prevents gratuitous saves of file folders.

2000-05-23 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufmnu.scm (1.129): Make buffer-menu code smarter about
	keeping its columns aligned.  The menu is very hard to parse with
	misaligned columns.

2000-05-23 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.101): Add feedback to various commands
	that copy messages or create/delete folders, so the user can see
	what is happening.

2000-05-23 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.90): Fix bug in MESSAGE-LENGTH.

2000-05-23 14:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.45): Implement explicit condition type for IMAP
	server errors, and use that to detect the TRYCREATE response code
	whereever it occurs.

2000-05-23 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.89), imail-file.scm (1.39),
	imail-top.scm (1.100): Implement WITH-OPEN-CONNECTION for use by
	M-x imail-copy-messages.

2000-05-23 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.86): Fix thinko in previous change.  Use
	LOGOUT command for clean disconnections.  Improve IMAP trace output
	to get all responses and to hide the user's password.

2000-05-23 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.85): Implement explicit condition type
	for IMAP server errors, and use that to detect the TRYCREATE
	response code whereever it occurs.

2000-05-23 13:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.84): Restructure IMAP trace mechanism to
	output the trace directly to a file.

2000-05-23 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.25): Add support for UIDPLUS response
	codes.

2000-05-23 11:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.83): Restructure IMAP trace mechanism to
	output the trace directly to a file.

2000-05-23 10:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: todo.txt (1.43), todo.txt (1.44): Note problems with
	copying multiple messages to IMAP server.

2000-05-23 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.16), imail-top.scm (1.99): Flesh out
	documentation strings a bit.

2000-05-23 00:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.98): Don't bind imail-delete-folder to a
	key.  It should be hard to do this.

2000-05-23 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/install.sh (1.1): Initial registration.

2000-05-23 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.97): Change the modeline to show the
	connection status even when the folder is empty.

2000-05-23 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.82): Send STATUS folder event when IMAP
	folder opened.	Guarantee that connection's folder is reset if the
	user aborts the SELECT.

2000-05-23 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.81): Fix bug: don't leave connection
	half-open if user aborts during login.

2000-05-22 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.96): Fix typo.

2000-05-22 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.94), load.scm (1.9), todo.txt (1.42),
	imail-top.scm (1.95): Add configurable confirmation for performing
	EXPUNGE.

2000-05-22 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.15), imail-util.scm (1.25):
	Implement procedure to count number of digits in an exact
	nonnegative integer.

2000-05-22 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: todo.txt (1.41), imail-top.scm (1.93): Implement M-x
	imail-resend.

2000-05-22 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.88), imail-file.scm (1.38),
	imail-imap.scm (1.80), imail-top.scm (1.92), todo.txt (1.40): Add
	"online" indicator to the modeline, and implement command to
	disconnect from server.

2000-05-22 22:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.91): Add "N unseen" indicator to the
	modeline.

2000-05-22 22:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.39): Fixed problem with login messages during
	completion by changing Edwin to suppress all messages during
	completion.

2000-05-22 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.126): Syntax tweak.

2000-05-22 22:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: curren.scm (1.125), prompt.scm (1.185): Suppress messages
	and command prompts while doing completion operations in the
	minibuffer.

2000-05-22 20:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.79): Fix bug: if there were two memoized
	connections to the same server, GET-IMAP-CONNECTION was returning
	the first one, even if it was closed.  It should look for one that
	is still open and use it, using the closed one only if there's no
	open one.

2000-05-22 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.90): Make another stab at getting URL
	prompts right.

2000-05-22 18:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.89): Fix bug: don't mistakenly say that a
	folder is unchanged by reading the modification count at the wrong
	time.

2000-05-22 18:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.78): Fix bug: don't signal an error when
	reading BYE message.

2000-05-22 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.88): Tweak URL prompting again.  This is
	almost what I want now.

2000-05-22 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.77), imail-core.scm (1.87),
	imail-top.scm (1.87): Change definition of URL-PASS-PHRASE-KEY to
	specify that it is also part of the prompt to the user.

2000-05-22 16:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.37): Don't implement URL-PASS-PHRASE-KEY
	for file URLs, because it should never be called on one of these.

2000-05-22 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.76): Fix thinko; eliminate
	IMAP-CONNECTION-OPEN?.

2000-05-22 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.86), imail-file.scm (1.36),
	imail-imap.scm (1.75), imail-top.scm (1.86), todo.txt (1.38): Move
	pass-phrase memoization into the front end.  Now connections to the
	same account on the same server can share a pass phrase.

2000-05-22 15:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.37): Add code to detect when the connection has
	been dropped.  This test is performed by
	GUARANTEE-IMAP-CONNECTION-OPEN, and thus will be done at the
	beginning of every IMAIL operation.  The code will transparently
	close the connection and reopen it.  If a problem occurs during the
	processing of the operation, an error will be signalled, as one
	would expect.

2000-05-22 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.85), imail-file.scm (1.35),
	imail-imap.scm (1.74): Always run SAVE-FOLDER as part of
	CLOSE-FOLDER.

2000-05-22 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.85), todo.txt (1.36): Implement
	workaround to keep the IMAP connection open when writing multiple
	messages.

2000-05-22 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.84): Implement WITH-OPEN-FOLDER, which
	guarantees that the folder is opened and closed as necessary.

2000-05-22 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.73): If connection is established but
	folder has been closed, reselect the folder.

2000-05-22 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.72): Reexamine IMAIL operations and add
	checks to guarantee that the connection is always opened as needed.

2000-05-22 15:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.71): Add code to detect when the
	connection has been dropped.  This test is performed by
	GUARANTEE-IMAP-CONNECTION-OPEN, and thus will be done at the
	beginning of every IMAIL operation.  The code will transparently
	close the connection and reopen it.  If a problem occurs during the
	processing of the operation, an error will be signalled, as one
	would expect.

2000-05-22 11:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.35): Notes regarding bugs having to do with
	completion prompting.

2000-05-22 11:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.11): Fix bug: transmission of literal
	not counting contents correctly.

2000-05-22 11:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.24): Fix bug: server continuation
	lines not being parsed correctly.

2000-05-22 11:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.8): Write M-x imail-copy-messages.

2000-05-22 11:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.70): Fix bug in handling of flags to
	APPEND command.

2000-05-22 11:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.83): Ignore any received headers that
	don't parse correctly.

2000-05-22 10:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rfc822.scm (1.8): Fix several bugs in the "received:"
	header parsing code.

2000-05-22 10:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.84): Write M-x imail-copy-messages.

2000-05-22 10:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.36): Fix typo.

2000-05-22 09:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.69), imail.pkg (1.40), todo.txt (1.34):
	In APPEND-MESSAGE, create mailbox if append/copy causes error
	containing TRYCREATE.

2000-05-22 09:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.83), load.scm (1.7): Implement
	IMAIL-COPY-FOLDER, a tool to copy folders to and from an IMAIL
	server.

2000-05-22 09:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.68): Canonicalize the case of IMAP URLs,
	where possible without knowing details of the server.

2000-05-22 09:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.39), load.scm (1.6): Use explicit mechanism
	to link variables into the Edwin package, so that IMAIL can be
	reloaded.

2000-05-22 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.33): Eliminate FOLDER-VALID?, replacing it with
	the more sensible URL-EXISTS?.

2000-05-22 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.82): Generalize MOVE-RELATIVE to accept a
	raw command argument rather than a delta, and to do something
	sensible if there's no prefix argument.

2000-05-21 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.81): In flag-modification commands, don't
	advance to next message unless a prefix argument is given.

2000-05-21 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.80): IMAIL-GET-DEFAULT-URL must never
	signal an error.

2000-05-21 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.34): Eliminate FOLDER-VALID?, replacing
	it with the more sensible URL-EXISTS?.

2000-05-21 23:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.67): Suppress the IMAP port if it is the
	standard port.

2000-05-21 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.82), imail-file.scm (1.33),
	imail-imap.scm (1.66): Eliminate FOLDER-VALID?, replacing it with
	the more sensible URL-EXISTS?.

2000-05-21 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.81), imail-file.scm (1.32),
	imail-imap.scm (1.65), imail-top.scm (1.79): Provide inserted
	default strings to all URL prompts.

2000-05-21 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.80), imail-imap.scm (1.64),
	imail-rmail.scm (1.35), imail-umail.scm (1.29), imail-util.scm
	(1.24): Restructure the URL completion code to clean it up a bit. 
	Change the completer so that it doesn't do completion on URL
	protocols.  Instead, if there isn't a protocol prefix on the
	string, it assumes the protocol of the default URL, and completes
	the string relative to that URL.

2000-05-21 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.79), imail-file.scm (1.31),
	imail-imap.scm (1.63), imail-rmail.scm (1.34), imail-top.scm
	(1.78), imail-umail.scm (1.28), todo.txt (1.32): Implement URL
	completion, and reimplement URL parsing to do sensible defaulting. 
	This implementation appears to work but has several minor problems.

2000-05-20 20:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.23): Fix typo and also type error.

2000-05-20 20:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.38), imap-response.scm (1.23): Export
	procedures for deconstructing LIST responses.

2000-05-20 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.22): Supply missing
	STRING-GREATEST-COMMON-PREFIX, needed by completion code.

2000-05-20 15:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.30), imail-rmail.scm (1.33): Pathname
	completion filters now accept a pathname rather than a string.

2000-05-20 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.78): Change URL completion so that
	completion stops after completing a protocol name, rather than
	continuing to complete the body.

2000-05-20 15:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.21): Fix braino in pathname completion. 
	Previous design would have recursively read every subdirectory of
	the given directory attempting to enumerate files to present to the
	filter.  This design descends exactly one level at a time, as it
	should.

2000-05-20 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.62), imail-util.scm (1.20): Split off
	broken-pipe detection code.  This has little effect now but will be
	useful later when I improve the error recovery.

2000-05-20 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dostop.c (1.13), ntapi.h (1.12), os2top.c (1.20),
	uxtop.c (1.24), version.h (11.173): Change syscall name and error
	tables to lower case.  These strings are converted into symbols
	without case modification, and must be in the correct case for the
	runtime system.

2000-05-19 23:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.31): Reminder to move pathname-completion code
	into the runtime system.

2000-05-19 23:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.77), imail-file.scm (1.29),
	imail-rmail.scm (1.32), imail-umail.scm (1.27), imail-util.scm
	(1.18), imail-util.scm (1.19): First draft of URL completion
	mechanism.  IMAP method not yet implemented.

2000-05-19 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.37): Export edwin commands, modes, and
	variables.

2000-05-19 17:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.30): Summary-buffer navigation now fixed.

2000-05-19 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.77): Define MOVE-RELATIVE-ANY.

2000-05-19 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.76): Change flag-marking commands to
	accept a prefix argument to repeat with.

2000-05-19 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.75): M-x imail-expunge should not use the
	navigator abstraction.

2000-05-19 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.14): Fix bug: SELECT-MESSAGE event can
	be called with no message.

2000-05-19 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.29): Assorted design changes.

2000-05-19 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.76), imail-imap.scm (1.61): Change
	SET-MESSAGE-FLAGS! so that a folder event is generated when the
	flags are stored, rather than when the the storage request is
	initiated.  IMAP can sometimes set the flags when no request has
	been initiated.

2000-05-19 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.74): Bind M-x imail-summary-by-flags to
	C-M-f rather than C-M-l.

2000-05-19 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.13), imail-top.scm (1.73): Use new
	navigator abstraction to allow the summary buffer to share nearly
	all of the IMAIL mode commands.  Fix various bugs, both in summary
	mode and in the navigator abstraction.

2000-05-19 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.60): Use UID STORE rather than STORE.

2000-05-19 16:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.75): Fix thinko.

2000-05-19 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.72): Implement navigation abstraction to
	allow the summary buffer to properly share commands with the folder
	buffer.

2000-05-19 14:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.71): Use MOVE-RELATIVE for deletion and
	undeletion commands.

2000-05-19 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.70), imail-summary.scm (1.12),
	imail-util.scm (1.17): Define generic BURST-COMMA-LIST-STRING.

2000-05-19 13:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.69), imail-summary.scm (1.11): Share
	flag-prompting code to summary buffer commands.

2000-05-19 13:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.28): Downgrade one suggestion to a feature.

2000-05-19 13:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.27): Update for changes.  Add note about
	command to copy entire folders.

2000-05-19 13:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.10): More usability improvements.

2000-05-19 13:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.9): Show several markers for common
	message flags, rather than just D for deleted.	Add space for a
	generic marker a la Dired.

2000-05-19 12:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.28): Add range checking to the group delete
	and replace operations.

2000-05-19 12:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.26): Various new ideas.

2000-05-19 12:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.74), imail-top.scm (1.68): Eliminate
	"edited" flag.

2000-05-19 09:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.25): Notes regarding presentation of standard
	flags in the summary buffer.

2000-05-19 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.24): Note bug with navigating partial summary
	buffers.  Note that %APPEND-MESSAGE must create the folder if it
	doesn't already exist.

2000-05-19 01:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.8), imail-top.scm (1.67): A number
	of usability improvements.

2000-05-19 01:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.59): Fix bug: SEARCH-FOLDER is supposed
	to return indices, but the IMAP method was returning message
	objects.

2000-05-19 01:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.22): Fix bug: IMAP SEARCH response is
	allowed to be empty; I was signalling error in that case.

2000-05-19 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.23): Note regarding suboptimal password
	caching.

2000-05-19 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.58), imail-top.scm (1.66),
	imail-core.scm (1.73): Redesign handling of IMAP connections so
	that there can be multiple mailboxes simultaneously open on the
	same server.  Also provide mechanism for getting connections for
	server operations such as CREATE and DELETE.  Flush
	BIND-AUTHENTICATOR; just define a UI element to generate a
	password.

2000-05-18 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.72): Implement MESSAGE->STRING.

2000-05-18 22:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.21): Fix bug: READ-PFLAG was only
	reading flags that started with "\\".

2000-05-18 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.20): Reimplement low-level IMAP
	tracing code to be a complete transcript mechanism.

2000-05-18 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.36), imail-imap.scm (1.57), imap-syntax.scm
	(1.10): Reimplement low-level IMAP tracing code to be a complete
	transcript mechanism.

2000-05-18 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.56), imail-top.scm (1.65), todo.txt
	(1.22): Implement commands to create and delete folders.  Put in
	special hack to prepend "inbox." to folder names when using Cyrus.

2000-05-18 17:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.7): Flesh out the help text for IMAIL
	Summary mode.  Tweak the column headings slightly.  Add
	imail-summary-mode-hook.

2000-05-18 17:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.6): Add header line to summary buffer
	to indicate each column's meaning.

2000-05-18 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-summary.scm (1.5), imail-util.scm (1.16): Add
	indication of message's length to summary buffer.

2000-05-18 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.71), imail-imap.scm (1.55): Implement
	MESSAGE-LENGTH.

2000-05-18 15:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.35), imail-imap.scm (1.54), imail-top.scm
	(1.64), imap-response.scm (1.19), todo.txt (1.21): Add progress
	meter when reading very long message bodies.

2000-05-18 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.18): Add hook for progress indicator
	to code that reads literals.

2000-05-18 14:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.20): Change background NOOP idea from bug fix
	to feature.

2000-05-18 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.19): Need commands to create, delete, and
	rename folders.

2000-05-18 13:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.18): Summary browser now done.  Need progress
	meter for long messages.

2000-05-18 13:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.4): Additional round of debugging and
	expansion.  This version seems to work pretty well.

2000-05-18 13:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.63): Fix thinko.

2000-05-18 11:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.62): Change message-deletion commands to
	take a repeat argument.

2000-05-18 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.3): Results of first round of serious
	debugging.  The summary feature now appears to work almost right. 
	Some additional work remains.

2000-05-18 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.61): Fix a few bugs from the recent
	changes.

2000-05-18 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-summary.scm (1.2): Extensive work.  First draft of
	code that uses new folder events to see what changes are occurring
	to the folder and reflecting that in the summary buffer.

2000-05-17 23:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.60), imail-core.scm (1.70): Add folder
	event to signal selection of a message in the front end.  Unlike
	other folder events, this one doesn't update the folder's
	modification count, so split of a procedure FOLDER-EVENT to handle
	cases like this.

2000-05-17 23:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.69), imail-file.scm (1.28),
	imail-imap.scm (1.53), imail-top.scm (1.59): Change the way folder
	modification events are signalled.  Now there are several different
	types of events, and each type has specific parameters associated
	with it.  The intent of this change is to allow the front end to
	figure out what is happening in the back end and reflect that to
	the user.
	
	Also: eliminate MESSAGE-MODIFICATION-COUNT and eliminate a handful
	of modification events that were not visible at the folder
	abstraction boundary (events are now part of the abstraction
	boundary, and should not reflect irrelevant internal state).

2000-05-17 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.7), ed-ffi.scm (1.9), imail.pkg (1.34),
	imail-summary.scm (1.1), print.sh (1.6), rfc822.scm (1.7): First
	cut at implementation of summary buffers.

2000-05-17 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.58): Define special buffer properties so
	that SELECTED-FOLDER and SELECTED-MESSAGE can work properly in
	buffers other than the folder buffer.

2000-05-17 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.68): Implement MESSAGE-TIME.

2000-05-17 15:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.57): Define special buffer properties so
	that SELECTED-FOLDER and SELECTED-MESSAGE can work properly in
	buffers other than the folder buffer.

2000-05-17 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.67), imail-top.scm (1.56): Add
	PROPERTIES slot to all core objects, for use exclusively by the
	front end.

2000-05-17 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.52): Several changes that make IMAIL come
	up much faster with large folders.  First, we pay attention to the
	UNSEEN value, and delete UNSEEN when expunges happen to avoid
	having an invalid value.  Second, we don't load headers for all the
	messages in advance; just their UIDs, which is very fast.
	
	This allows the mail reader to fetch just the information for the
	first unseen message, which happens very quickly on a fast network
	connection.

2000-05-17 14:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.66): Fix typo.

2000-05-17 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.31), imail-umail.scm (1.26): Eliminate
	compiler warning.

2000-05-17 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.30): Eliminate code to read RMAIL inbox.

2000-05-17 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.55): Implement M-x imail-get-new-mail.

2000-05-17 13:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.54): Implement M-x imail-get-new-mail.

2000-05-17 13:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.65), imail-file.scm (1.27),
	imail-imap.scm (1.51): Implement PROBE-FOLDER.

2000-05-17 13:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.53), todo.txt (1.17): Set buffer default
	directory to something sensible.

2000-05-17 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.26): Generate predicate for file folders.

2000-05-17 13:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.52): Change definition of
	imail-kept-headers so that it specifies the order of the headers as
	well.

2000-05-17 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.51): Set buffer not modified bit.

2000-05-17 13:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.50): Change FIRST-UNSEEN-MESSAGE to return
	#F if there are no unseen messages; previously it returned the last
	message.  Reexamine all of the uses of FIRST-UNSEEN-MESSAGE and
	refine the logic there.

2000-05-17 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.64), imail-top.scm (1.49): Change
	FIRST-UNSEEN-MESSAGE to return #F if there are no unseen messages;
	previously it returned the last message.  Reexamine all of the uses
	of FIRST-UNSEEN-MESSAGE and refine the logic there.

2000-05-17 12:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.16): Note regarding generation of status
	messages during I/O.

2000-05-17 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.50): Fix bug: expunging of IMAP messages
	wasn't renumbering the remaining messages.

2000-05-17 12:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.49), todo.txt (1.15): Change method
	used to fetch message contents so that it uses UID FETCH rather
	than FETCH.

2000-05-17 11:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.63), imail-top.scm (1.48): Implement
	MESSAGE-ATTACHED? and MESSAGE-DETACHED?, to abstract the details of
	this query.  Refine the method used to obtain the selected message,
	by saving the message index when a message is detached, and using
	that index to choose a new message.

2000-05-17 11:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-umail.scm (1.25), imail-rmail.scm (1.29),
	imail-file.scm (1.25), imail-core.scm (1.62): Eliminate
	COPY-MESSAGE, which no longer worked.

2000-05-17 09:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.47): Fix bug: SELECTED-MESSAGE must not
	choose another message at random if the buffer's message isn't
	valid.

2000-05-17 09:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.48): Fix two bugs associated with
	expunging of messages.	This now seems to work right.

2000-05-16 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.47): Reimplement growing and shrinking of
	messages vector.

2000-05-16 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.14): Set imail buffer directory to home
	directory for IMAP folders.

2000-05-16 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.46): Fix infinite recursion.

2000-05-16 14:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.61), imail-imap.scm (1.45),
	imail-rmail.scm (1.28), imail-top.scm (1.46), imap-response.scm
	(1.17): Fix compilation errors.

2000-05-16 11:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.15): Generalize STRING->LINES and
	LINES->STRING.

2000-05-16 11:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.44), imail-util.scm (1.14),
	imap-response.scm (1.16), imap-syntax.scm (1.9): Do network/scheme
	line-ending translation automatically when reading and writing
	literals.  We shouldn't need to worry about binary data in mail
	messages.

2000-05-16 11:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.69): Fix bug: M-x vc-version-other-window must
	default the version if the user doesn't specify it.

2000-05-16 10:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.35), runtime.pkg (14.349): Define
	SET-STRING-MAXIMUM-LENGTH!.

2000-05-16 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.60), imail-imap.scm (1.43),
	imail-umail.scm (1.24): Implement MESSAGE-INTERNAL-TIME.

2000-05-15 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.scm (1.15), imap-response.txt (1.3): Change
	INTERNALDATE FETCH response to return the time as universal time.

2000-05-15 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.42), todo.txt (1.13): Signal
	"unimplemented" error if AVAILABLE-FOLDER-NAMES called on IMAP URL.

2000-05-15 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.41), imail.pkg (1.33),
	imap-response.scm (1.14), todo.txt (1.12): Implement IMAP
	SEARCH-FOLDER operation.

2000-05-15 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.40), imail.pkg (1.32), imap-syntax.scm
	(1.8): Implement all of the IMAP server operations except for
	AVAILABLE-FOLDER-NAMES.

2000-05-15 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.39), imail-top.scm (1.45): Change
	implementation of IMAP URLs so that they are fully instantiated at
	all times.  This greatly simplifies comparison and caching.

2000-05-15 21:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.31), imail-imap.scm (1.38), imap-syntax.scm
	(1.7): Rewrite IMAP URL parser to eliminate unused authentication
	component, and to clarify the allowed partial forms.

2000-05-15 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.59), imail-imap.scm (1.37),
	imail-rmail.scm (1.27), imail-umail.scm (1.23): Rename NEW-FOLDER
	to CREATE-FOLDER, and change definition so that the new folder
	object is _not_ returned.  This is more in line with capabilities
	of IMAP.

2000-05-15 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.58), imail-file.scm (1.24),
	imail-imap.scm (1.36), todo.txt (1.11): Eliminate MOVE-FOLDER in
	favor of more-restricted RENAME-FOLDER.  This is a closer match to
	the capabilities of IMAP.

2000-05-15 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.57), imail-file.scm (1.23),
	imail-imap.scm (1.35), todo.txt (1.10): Eliminate COPY-FOLDER.

2000-05-15 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.9): Eliminate message properties.

2000-05-15 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.56), imail-imap.scm (1.34),
	imail-rmail.scm (1.26), imail-umail.scm (1.22): Eliminate message
	properties.

2000-05-15 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.21): Add code to extract timestamp from
	unix from line.

2000-05-15 14:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.27), datime.scm (14.28): Add ability to
	specify the time zone in which a ctime() string is to be
	interpreted.

2000-05-15 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.20): Use runtime system's built-in
	support for ISO C ctime() strings.

2000-05-15 13:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: rfc822.scm (1.6), imail.pkg (1.30): Add support for
	parsing "Received" headers.  Break out some lower-level parsing
	code.

2000-05-15 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.26): Allow arbitrary whitespace in
	passed-in time strings.

2000-05-15 12:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.8): Changes to clarify IMAP COPY operation. 
	Suggest using UID FETCH.  Mode-line enhancements.

2000-05-15 08:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.55): Fix typo in comment.

2000-05-13 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.7): Add note about need to move compressed-file
	I/O to the runtime system.

2000-05-13 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.26): Eliminate usage of FALSE and TRUE.

2000-05-13 23:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.25): Don't store subprocesses in a simple
	list -- use a GC finalizer so that their resources are cleaned up
	if the subprocess objects are dropped.

2000-05-12 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.44): Don't show special mode-line string
	if selected message is detached.

2000-05-12 14:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.54), imail-file.scm (1.22),
	imail-imap.scm (1.33), imail-rmail.scm (1.25), imail-top.scm
	(1.43), imail-umail.scm (1.19), todo.txt (1.6): Change
	APPEND-MESSAGE to accept arguments (MESSAGE URL) rather than
	(FOLDER MESSAGE) as currently.	There's no need to have the folder
	open to append a message to it, and this requirement causes
	problems for the IMAP back end.

2000-05-12 14:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.32), imail-top.scm (1.42): Eliminate
	unused parts of IMAP URL.

2000-05-12 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.53), imail-file.scm (1.21),
	imail-imap.scm (1.31), imail-top.scm (1.41), todo.txt (1.5):
	Replace FOLDER-PRESENTATION-NAME with URL-PRESENTATION-NAME.

2000-05-11 10:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.4): Reorganize into major sections.  Add
	several more items.

2000-05-10 22:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.3): Reorder items into rough prioritization.

2000-05-10 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/todo.txt (1.2): Add more suggestions.

2000-05-10 20:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.40), todo.txt (1.1), print.sh (1.5):
	Move to-do notes to new file "todo.txt".

2000-05-10 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.30): Add code to do NOOP after FETCH if
	the desired results from the FETCH aren't received.

2000-05-10 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.29): Fix overlong page.

2000-05-10 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.28): Add memoization for user's password.
	 Password is stored in obscured form so that it won't be stumbled
	over (is there a better way to do this?).  Add code to detect when
	the connection is broken.

2000-05-10 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.39): Completely discard folder when imail
	buffer is killed.

2000-05-10 13:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.20): Implement DISCARD-FOLDER-CACHE for
	file folders.

2000-05-10 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.27): Fix off-by-one error.

2000-05-10 13:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.52), imail-imap.scm (1.25),
	imail-rmail.scm (1.24), imail-umail.scm (1.18), imail-imap.scm
	(1.26): Fix bug: URLs weren't being properly memoized when created
	from components rather than being translated from a string.

2000-05-10 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.24): Add trace facility to allow watching
	the messages passing between the client and server.

2000-05-10 12:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.51): Don't set message flags unless they
	have changed.

2000-05-08 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.23): In SET-IMAP-FOLDER-LENGTH!, when
	there are no messages in a folder, it can be treated using the same
	strategy as when the folder is synchronized.

2000-05-08 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.22): Extensive rewrite so that folders
	can be reopened.  Added interrupt locking in many critical
	locations to guarantee atomicity.  Cleaned up code that sets folder
	and message attributes based on incoming responses from the server.

2000-05-08 16:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.50): Fix typo.

2000-05-08 16:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.120): Fix typo in previous change.

2000-05-08 15:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.29): Fix thinko.

2000-05-08 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.49), imail-umail.scm (1.17): Eliminate
	MAKE-ATTACHED-MESSAGE.

2000-05-08 15:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.48), imail-file.scm (1.19): Eliminate
	ATTACH-MESSAGE.  Change ATTACH-MESSAGE! to set the index as well as
	the folder.  Change ATTACH-MESSAGE! and DETACH-MESSAGE! to do
	MESSAGE-MODIFIED!.

2000-05-08 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.47): Fix pagination.

2000-05-08 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.46): ATTACH-MESSAGE! must clear the
	message index.

2000-05-08 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.23), imail-file.scm (1.18),
	imail-core.scm (1.45): Rename DETACH-MESSAGE to DETACH-MESSAGE!.

2000-05-08 14:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.44): Define ATTACH-MESSAGE!.

2000-05-08 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.38): Use new command-suffix mechanism to
	delay mode-line updates to end of command.

2000-05-08 13:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.119): Change command-suffix mechanism to
	allow suffixes to take arguments, which are matched against by
	MAYBE-ADD-COMMAND-SUFFIX!.

2000-05-08 13:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.118), edwin.pkg (1.256): Add ability to
	specify "command suffixes" -- thunks that are executed when the
	current command ends.

2000-05-08 11:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.37): Change handling of SELECTED-MESSAGE
	to ignore message if it is detached or from the wrong folder,
	instead selecting default message from current folder.

2000-05-08 11:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.43), imail-imap.scm (1.21): Change
	handling of FIRST-UNSEEN-MESSAGE; ignore IMAP's UNSEEN response as
	it is insufficiently constrained to be useful.

2000-05-08 11:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.28), imap-response.scm (1.13): Define
	IMAP:RESPONSE:FETCH-ATTRIBUTE-KEYWORDS.

2000-05-08 11:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.20): Rework handling of FETCH commands:
	any attributes that we care about are now transparently stored
	directly into the appropriate message.	This allows for unsolicited
	FETCH responses from the server.

2000-05-08 10:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.42): Change LINES->HEADER-FIELDS to stop
	at a blank line, and to use memory more efficiently.

2000-05-08 10:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.13): Implement NETWORK-STRING->LINES.

2000-05-08 10:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.27): Fix bug: FETCH response did not contain
	the message index as it is supposed to.

2000-05-08 09:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.scm (1.12), imap-response.txt (1.2): Fix
	bug: FETCH response did not contain the message index as it is
	supposed to.

2000-05-08 09:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.txt (1.1): Initial registration.

2000-05-08 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.19): More intelligent handling of
	untagged responses, based on closer reading of specification.  Add
	support for BADCHARSET and UIDNEXT response codes.

2000-05-08 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.scm (1.11), imail.pkg (1.26): Add support
	for new BADCHARSET and UIDNEXT response codes.

2000-05-05 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.41), imail-imap.scm (1.18),
	imail-top.scm (1.36): Change the way that URLs are handled by the
	top level.  A partial IMAP URL may now be specified, and default
	values are filled in to complete the URL before it is handed to the
	IMAP communications layer.

2000-05-04 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.35): Fix thinko in IMAIL-MESSAGE-WRAPPER.

2000-05-04 18:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.17): Implement handling of flags,
	expunging, and deletion/reloading of cache.

2000-05-04 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.34): Fix some bugs associated with
	discarding the imap cache and reloading it.

2000-05-04 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.33): Define IMAIL-MESSAGE-WRAPPER to allow
	folder abstraction to present messages to user.

2000-05-04 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.32), imail-core.scm (1.40): Don't show
	"seen" in message flags.

2000-05-04 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.31): Use implicit flag-setting procedures
	where applicable.  Mark messages as "seen" when viewed.

2000-05-04 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.30), imail-core.scm (1.39),
	imail-file.scm (1.17), imail-imap.scm (1.16): Implement
	FOLDER-PRESENTATION-NAME.

2000-05-04 13:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.15): Fix a bunch of bugs.  This copy of
	the code seems to limp along OK.

2000-05-04 13:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.29): Implement imail-kept-headers, as an
	alternative to imail-ignored-headers.

2000-05-03 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap.scm (1.13), imail-imap.scm (1.14): Reimplement
	<IMAP-MESSAGE> usage to extend <MESSAGE>, and to cache the message
	headers and body on demand.

2000-05-03 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.38), imail-file.scm (1.16): Split out
	code to parse message headers for flags and properties.  Eliminate
	MESSAGE->STRING.

2000-05-03 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.37), imail-file.scm (1.15),
	imail-imap.scm (1.12), imail-rmail.scm (1.22), imail-top.scm
	(1.28), imail-umail.scm (1.16): Change modification-tracking
	mechanism to use counter instead of boolean flag.  This is
	necessary if more than one process is simultaneously tracking
	modifications.
	
	Sketch new synchronization interface.  New interface consists of
	three procedures: FOLDER-SYNC-STATUS determines the synchronization
	relationship of the folder cache with the persistent folder;
	SAVE-FOLDER saves any cached changes to the persistent folder;
	DISCARD-FOLDER-CACHE discards all cached information.

2000-05-03 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.17): Fix code that was assuming that
	MAP accepted argument lists of different lengths.

2000-05-02 18:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.27): Jot down some notes.

2000-05-02 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.36), imail-file.scm (1.14),
	imail-imap.scm (1.11), imail-rmail.scm (1.21), imail-umail.scm
	(1.15): Eliminate troublesome WRITE-FOLDER operation.  Change
	DELETE-FOLDER and MOVE-FOLDER to close the old folders.

2000-05-02 18:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.13), imail-rmail.scm (1.20),
	imail-umail.scm (1.14): Implement CLOSE-FOLDER method for file
	folders, by discarding the messages in the folder.  The messages
	are automatically reloaded when needed.

2000-05-02 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.35), imail-file.scm (1.12),
	imail-imap.scm (1.10): Change FOLDER-URL to be a slot in <FOLDER>.

2000-05-02 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.26): Change interface to authenticator. 
	Add buffer-kill hook to allow folder to clean up.

2000-05-02 17:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.34), imail-file.scm (1.11): Reorganize
	code, fix minor bugs.

2000-05-02 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.9): Write code to reopen connections
	[still need to hook this in].

2000-05-02 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.25), rfc822.scm (1.5), imail-umail.scm
	(1.13): Change names of RFC-822 procedures, and move header-field
	name predicate to "rfc822.scm".

2000-05-02 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.12): Implement REMOVE-DUPLICATES!.

2000-05-02 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.348): Implement ADD-MEMBER-PROCEDURE.

2000-05-02 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.24): [What started out as a simple addition
	became a moderately large edit.]  Implemented ADD-MEMBER-PROCEDURE.
	 Fixed bug in mapping procedures: they were allowing combinations
	of lists of different lengths, which is forbidden by the
	specification.	Deleted old commented-out code, which can be
	recoved from CVS if required in the future.  Reorganized several
	procedures to make them more concise.

2000-04-30 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.186): Release 7.5.8.

2000-04-30 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.172): Update to reflect important bug fix
	for Win32 systems.

2000-04-30 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.255): Undo change from revision 1.253.

2000-04-30 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/win32.scm (1.13): Undo previous change.

2000-04-30 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.45): Fix uninitialized variable bug that,
	strangely, only caused occasional problems.

2000-04-30 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/abbrev.scm (1.4), edwin/autold.scm (1.56), edwin/debug.scm
	(1.50), edwin/dired.scm (1.182), edwin/dosfile.scm (1.37),
	edwin/edwin.pkg (1.254), edwin/input.scm (1.101), edwin/print.scm
	(1.19), edwin/unix.scm (1.108), edwin/webster.scm (1.4),
	6001/edextra.scm (1.31): Create new procedure MESSAGE-WRAPPER to
	capture standard pattern of "<message>..." followed by
	"<message>...done".  This eliminates error-prone uses of
	APPEND-MESSAGE.

2000-04-30 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: win32.scm (1.12), edwin.pkg (1.253): Disable automatic
	repainting when setting size or position.

2000-04-28 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.8): Repaginate.

2000-04-28 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/print.sh (1.4): Update to reflect changes to file
	structure.

2000-04-28 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.24): Change load order of files to put all the
	file-based formats together.

2000-04-28 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.7): First version that sort of limps
	along.	Will read messages from IMAP mailbox and display them.

2000-04-28 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.11): Implement
	TRANSLATE-STRING-LINE-ENDINGS.

2000-04-28 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.25), imap-response.scm (1.10),
	imail-core.scm (1.33): Fix various bugs found during debugging of
	IMAP folders.

2000-04-28 12:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.6): Intermediate checkpoint -- initial
	implementation in process.

2000-04-28 12:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.scm (1.9), imail.pkg (1.23): Regularize
	format of FETCH response.  Add ability to trace output from server.

2000-04-28 12:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.6): Fix compiler warning.

2000-04-28 12:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.32): Define MAKE-ATTACHED-MESSAGE.

2000-04-28 12:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.22), imap-response.scm (1.8): Define
	IMAP:RESPONSE:FETCH-ATTRIBUTE.

2000-04-28 01:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.5): Intermediate checkpoint -- initial
	implementation in process.

2000-04-28 01:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.21): Define IMAP:RESPONSE:STATUS-RESPONSE?.

2000-04-26 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.4): Intermediate checkpoint -- initial
	implementation in process.

2000-04-26 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.20), imap-response.scm (1.7): Eliminate a
	bunch of compiler warnings.

2000-04-26 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.31), imail-rmail.scm (1.19),
	imail-top.scm (1.24), imail-umail.scm (1.12): Eliminate ability to
	edit the contents of a message.  IMAP doesn't permit this, so we
	won't either.  RMAIL is unusual among mail clients in permitting
	this.
	
	Additionally, eliminate generic procedure HEADER-FIELDS, and stop
	treating the "summary-line" header specially.

2000-04-26 20:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.23): Implement IMAIL-PRESENT-USER-ALERT.

2000-04-26 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.22): Change protocol of authenticator so
	that it corresponds to CALL-WITH-PASS-PHRASE.

2000-04-24 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.6): Make corrections to account for
	the server port not doing line translation.  This is required so
	that literals will work right.

2000-04-24 23:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.5): Delete MAILBOX command which was
	incorrectly included in IMAP4rev1 specification.  Implement
	procedures to abstractly access server responses.

2000-04-24 23:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-syntax.scm (1.5), imail.pkg (1.19): Add code to
	write strings to the IMAP server.

2000-04-23 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.4): Tweak response representation
	slightly to clean it up.

2000-04-23 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.30), imail-top.scm (1.21): Implement
	URL-USER-ID.

2000-04-22 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-response.scm (1.3): Tweak response representation
	slightly to clean it up.

2000-04-22 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/parser.scm (1.3): Implement PREDICATED-PARSER.

2000-04-22 20:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.18), imap-syntax.scm (1.4): Implement
	PREDICATED-PARSER.

2000-04-22 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/test-imap.scm (1.1): Initial registration.

2000-04-22 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imap-response.scm (1.2), imail.pkg (1.17): Many changes
	due to debugging.

2000-04-22 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.3): Change code that handles sections to
	implement a parser rather than a matcher.  Change usages of
	DECODING-PARSER to match new definition.

2000-04-22 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap.scm (1.3): Use PARSE-SUBSTRING.

2000-04-22 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/parser.scm (1.2): Modify DECODING-PARSER to accept a parser
	to parse the decoded text, rather that a matcher and a keyword. 
	Implement ENCAPSULATING-PARSER, and abstraction mechanism for this
	language.  Implement PARSE-STRING and PARSE-SUBSTRING to handle
	top-level parsing.

2000-04-21 21:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.6), ed-ffi.scm (1.8), imail.pkg (1.16),
	imap-response.scm (1.1), imap-syntax.scm (1.2), fake-env.scm (1.2),
	fake-env.scm (1.3): First attempt at a parser for IMAP server
	responses.

2000-04-20 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.101): Update to reflect a variety of bug fixes
	since last release.

2000-04-20 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.185): Release 7.5.7.

2000-04-20 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.171): Update version to reflect fix to
	Windows keyboard handling.

2000-04-20 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.44): Change test in `process_keydown' so
	that it specifies what modifiers we _are_ interested in, rather
	than those that we aren't.

2000-04-20 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.43): When deciding whether a keystroke is
	interesting enough to translate manually, ignore NUMLOCK or
	SCROLLLOCK.  Previously if either of these were depressed, it would
	force manual translation.  Also: raise trace level for some common
	but uninteresting message types.

2000-04-18 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntscreen.c (1.42), ntscreen.h (1.20), prntio.c
	(1.12): Modify Win32 tracing mechanism so that it is always
	compiled in and can be dynamically enabled or disabled.

2000-04-18 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.34): Change definition of DOS/FS-DRIVE-TYPE
	so that it can recognize Samba even when it advertises itself as
	NTFS.

2000-04-18 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.14), runtime/rexp.scm (1.14): Fix typo.

2000-04-18 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.15), imail-imap.scm (1.2): Fix compilation
	problems.

2000-04-18 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/fake-env.scm (1.1): Initial registration.

2000-04-18 17:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.5), ed-ffi.scm (1.7), imail.pkg (1.14),
	imail-imap.scm (1.1): Add new files, rearrange package structure.

2000-04-18 17:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imap-syntax.scm (1.1): Move IMAP syntax into separate file.

2000-04-18 17:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/parser.scm (1.1): Move parser support into separate file.

2000-04-18 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.29), imail-file.scm (1.10): Eliminate
	INSERT-MESSAGE, which isn't supported by IMAP and isn't needed.

2000-04-18 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap-url.scm (1.10): Simplify -- we aren't going to
	support the full IMAP URL syntax.  But leave the parsers here --
	they may come in handy later.

2000-04-18 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap-url.scm (1.9): Handle decoding properly -- can't
	decode entire URL string, only those parts that have already
	matched as encoded.

2000-04-18 14:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap-url.scm (1.8): Handle decoding properly -- can't
	decode entire URL string, only those parts that have already
	matched as encoded.

2000-04-14 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: win32.scm (1.11), edwin.pkg (1.252): Use MB_OK argument
	to MessageBeep -- using -1 doesn't do reasonable thing under
	Windows 9x.

2000-04-14 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/print.sh (1.3): Add new files.

2000-04-14 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: compile.scm (1.4), ed-ffi.scm (1.6), imail.pkg (1.13):
	Rename "imail-imap" to "imail-imap-url".

2000-04-14 13:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap-url.scm (1.7): First pass implementing parser
	for IMAP URLs.

2000-04-13 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.28), imail/imail-rmail.scm (1.18),
	imail/imail-top.scm (1.20), imail/imail-util.scm (1.10),
	imail/rexp.scm (1.13), runtime/rexp.scm (1.13), imail/rfc822.scm
	(1.4), imail/url.scm (1.7), runtime/url.scm (1.7): Use new runtime
	procedures SUBSTRING-MOVE! and DECORATED-STRING-APPEND.

2000-04-13 21:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.347), string.scm (14.33), string.scm
	(14.34): Implement DECORATED-STRING-APPEND.

2000-04-13 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.32): Use fixnum arithmetic everywhere. 
	Various other small changes.

2000-04-13 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.30), string.scm (14.31): Use fixnum
	arithmetic everywhere.	Various other small changes.

2000-04-13 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.12), runtime/rexp.scm (1.12): Fix some bugs
	caused by STRING? being true of CHAR-SET?.

2000-04-13 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.11), runtime/rexp.scm (1.11), imail/ed-ffi.scm
	(1.5), imail/imail.pkg (1.12): Move this code into the runtime
	system's package heirarchy.

2000-04-13 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.9): STRING-MOVE! now in runtime system.

2000-04-13 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.29), runtime.pkg (14.346): Implement
	STRING-MOVE! and SUBSTRING-MOVE!.

2000-04-13 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.10), runtime/rexp.scm (1.10): Fix infinite
	recursion.

2000-04-13 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.11): Fix compiler warnings.

2000-04-13 14:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/ed-ffi.scm (1.4): Fix compiler warnings.

2000-04-13 13:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap-url.scm (1.6), imail/rexp.scm (1.9),
	runtime/rexp.scm (1.9): Fix compiler warnings.

2000-04-13 12:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.8), runtime/rexp.scm (1.8),
	imail/imail-imap-url.scm (1.5), imail/url.scm (1.6),
	runtime/url.scm (1.6): Change all one-arg rexp combinators to
	accept any number of args and treat it as an implicit sequence. 
	Change sequence combinator to collapse nested sequences.

2000-04-13 12:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.7), runtime/rexp.scm (1.7), imail/imail.pkg
	(1.10), imail/url.scm (1.5), runtime/url.scm (1.5),
	imail/imail-imap-url.scm (1.3), imail/imail-imap-url.scm (1.4):
	Change rexp compiler to be case sensitive, and add REXP-CASE-FOLD
	to delimit regions that should be case insensitive.

2000-04-13 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.6), runtime/rexp.scm (1.6): Change automatic
	grouping so that it happens in the constructors rather than in the
	compiler.

2000-04-13 12:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.5), runtime/rexp.scm (1.5): Change automatic
	grouping so that it happens in the constructors rather than in the
	compiler.

2000-04-13 12:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.4), runtime/rexp.scm (1.4): When ALTERNATIVES
	appears within SEQUENCE, it must be GROUPed.

2000-04-13 11:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/url.scm (1.4), runtime/url.scm (1.4), imail/imail.pkg
	(1.9): Change to use new rexp abstraction.

2000-04-13 11:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rexp.scm (1.3), runtime/rexp.scm (1.3): Change REXP-GROUP
	to take just one argument.

2000-04-13 11:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.8), imail/rexp.scm (1.2), runtime/rexp.scm
	(1.2): Add REXP-SEQUENCE.

2000-04-13 11:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/compile.scm (1.3), imail/ed-ffi.scm (1.3), imail/imail.pkg
	(1.7), imail/rexp.scm (1.1), runtime/rexp.scm (1.1): Add file
	"rexp.scm" implementing list-based regular expressions.

2000-04-12 23:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/: dib.scm (1.4), win32.pkg (1.12): Eliminate reference to
	now-obsolete protection lists.

2000-04-12 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/regexp.scm (1.9): Fix two bugs in CHAR-SET->REGEXP.

2000-04-12 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/crypto.scm (14.10): Don't do mhash initialization if the
	primitives are unimplemented.

2000-04-11 23:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-imap-url.scm (1.2): Initial unfinished pass to
	generate IMAP URL parser.

2000-04-11 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-imap-url.scm (1.1), imail.pkg (1.6), compile.scm
	(1.2): Initial unfinished pass to generate IMAP URL parser.

2000-04-11 23:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/url.scm (1.3), runtime/url.scm (1.3), imail/imail.pkg
	(1.5): Define URL:REGEXP:HOSTPORT and subsidiaries.

2000-04-11 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/url.scm (1.2), runtime/url.scm (1.2), imail/imail.pkg
	(1.4): Reconcile the character sets and regexps used here with the
	descriptions in RFC 1738.  Also export them since the IMAP URL code
	needs access to some of them.

2000-04-11 22:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.345), regexp.scm (1.8): Implement
	CHAR-SET->REGEXP.

2000-04-11 22:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail.pkg (1.3), imail/url.scm (1.1), runtime/url.scm
	(1.1): Implement procedures to encode and decode URLs.

2000-04-11 20:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.10): Allow CHAR-SET-UNION and
	CHAR-SET-INTERSECTION to take any number of arguments.	Eliminate
	use of CHAR->ASCII and ASCII->CHAR.

2000-04-11 14:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.9): Allow CHAR-SET-UNION and
	CHAR-SET-INTERSECTION to take any number of arguments.	Eliminate
	use of CHAR->ASCII and ASCII->CHAR.

2000-04-11 12:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: crypto.scm (14.8), crypto.scm (14.9): Change
	keygen-type generation so that salt is supplied in the call to
	MHASH-KEYGEN, if needed.  This is desirable because the salt is
	usually unique for each passphrase.

2000-04-11 11:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/crypto.scm (14.7): Change MHASH-KEYGEN to accept all of
	the key-generation parameters as a compound structure, and
	implement MAKE-MHASH-KEYGEN-TYPE to build that structure.

2000-04-11 11:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: crypto.scm (14.6), runtime.pkg (14.344): Change
	MHASH-KEYGEN to accept all of the key-generation parameters as a
	compound structure, and implement MAKE-MHASH-KEYGEN-TYPE to build
	that structure.

2000-04-11 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/crypto.scm (14.5): Improve error message for incorrect
	salt size.

2000-04-11 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.23): Add "crypto.scm" to the list of known
	files.

2000-04-11 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/crypto.scm (14.4): Fix interface to MHASH-KEYGEN so that
	it is usable.

2000-04-10 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: random.scm (14.23), runtime.pkg (14.343): Define
	RANDOM-BYTE-VECTOR to generate random bytes.  This is useful for
	cryptographic applications that don't require an RNG with
	cryptographic properties, e.g. to generate an init vector or to
	salt a password.

2000-04-10 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcfinal.scm (14.2): REMOVE-FROM-GC-FINALIZER! must return
	the value of the finalization procedure for the object being
	finalized.

2000-04-10 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.22): Add new implementation of GC
	finalizers, a cleaner replacement for the old protection list
	abstraction.  Unlike protection lists, GC finalizers keep
	themselves clean, eliminating the need for the programmer to
	interact with GC daemons and events.

2000-04-10 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: crypto.scm (14.2), make.scm (14.65), runtime.pkg
	(14.342), crypto.scm (14.3): Repackage new crypto stuff.  Use new
	GC finalizers to add GC protection to the context indices generated
	by the hash code.

2000-04-10 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: gcfinal.scm (14.1), gdbm.scm (1.3), io.scm (14.61),
	make.scm (14.64), os2graph.scm (1.17), runtime.pkg (14.341),
	x11graph.scm (1.50): Add new implementation of GC finalizers, a
	cleaner replacement for the old protection list abstraction. 
	Unlike protection lists, GC finalizers keep themselves clean,
	eliminating the need for the programmer to interact with GC daemons
	and events.

2000-04-10 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.211): Update to match change to MD5 support
	in runtime system.

2000-04-09 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: blowfish.scm (1.19), krypt.scm (1.11), runtime.pkg
	(14.340): Implement support for the mhash library.  Generalize MD5
	support to use mhash if available, otherwise the md5-karn library.

2000-04-09 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/crypto.scm (14.1): Initial revision.

2000-04-09 22:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prmhash.c (11.1): Initial revision.

2000-04-09 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwin.scm (1.309), bufwiu.scm (1.34): Change FALSE to #F
	and TRUE to #T.

2000-04-09 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.308): Add code to detect case where the first
	visible line in a window is a partially-visible continued line and
	is subsequently deleted.  Previously this caused the redisplay to
	go into an uninterruptible infinite loop.

2000-04-09 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.33): Add code to detect case where the first
	visible line in a window is a partially-visible continued line and
	is subsequently deleted.  Previously this caused the redisplay to
	go into an uninterruptible infinite loop.
	
	This is yet another change in the series of revisions 1.25 and
	1.30.  Revision 1.30 only partially fixed this bug.  This revision
	introduces a new fix that should be more robust.

2000-04-07 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.68): Don't offer to save the VC log buffer.

2000-04-07 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.19): Fix bugs in IMAIL-READ-FLAG.

2000-04-07 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.27): Add hook to notice modifications to
	folders and reflect them in the mode line.

2000-04-07 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.18): Add hook to notice modifications to
	folders and reflect them in the mode line.

2000-04-07 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.339): Export EVENT-DISTRIBUTOR/RECEIVERS.

2000-04-07 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/events.scm (14.5): Don't allow event receivers to be
	added twice.

2000-04-07 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.17): Repaginate.

2000-04-07 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.67): Try harder to restore the window
	configuration to what it was before the log buffer was popped up.

2000-04-07 16:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.124): Implement MAKE-BUFFER-INVISIBLE.

2000-04-07 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.66): Try harder to restore the window
	configuration to what it was before the log buffer was popped up.

2000-04-07 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.65): Try harder to restore the window
	configuration to what it was before the log buffer was popped up.

2000-04-07 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.64): Try harder to restore the window
	configuration to what it was before the log buffer was popped up.

2000-04-07 15:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.125): POP-UP-BUFFER could return a window
	that wasn't popped up.

2000-04-07 15:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.16): Fix a variety of small bugs.

2000-04-07 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.26): Fix a variety of small bugs.

2000-04-07 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail.pkg (1.2), imail-rmail.scm (1.17): Don't duplicate
	logic that is already available in "rmail.scm"; share it.

2000-04-07 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.16): Don't duplicate logic that is
	already available in "rmail.scm"; share it.

2000-04-07 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.8): Define EDWIN-VARIABLE-VALUE.

2000-04-06 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.15): Implement the
	RMAIL-PRIMARY-INBOX-LIST and RMAIL-SPOOL-DIRECTORY procedures.

2000-04-06 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.7): Fix a handful of small bugs.

2000-04-06 00:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.25): Make MESSAGE-FOLDER be #F if not
	defined.  Customize written representation for messages and
	folders.

2000-04-05 23:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.10): Make sure that variable references in the
	expansion refer to global variables.  The lack of this protection
	caused trouble when this code was used in Edwin, which has a
	different definition for MAKE-CLASS.

2000-04-05 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.15): Change "writable" to "writeable".

2000-04-05 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.11): Fix typo.

2000-04-05 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.14), imail-umail.scm (1.10): Eliminate
	half-baked notion of "importing" and "exporting" files.  If
	pursued, this results in particular files being marked as
	"external", and others as "internal", and it becomes clumsy.

2000-04-05 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.6): Fix typo.

2000-04-05 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.63): Fix typo: some instances of BUFFER-VC-MASTER
	that should have been changed to CURRENT-VC-MASTER.

2000-04-05 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.62): Change vc-next-action so that it doesn't
	read in files that aren't already in buffers.

2000-04-05 10:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.251): Add missing exports for RMAIL summary
	mode.

2000-04-04 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: make.scm (1.6), rcs.sf (1.9): Delete old files.

2000-04-04 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.184): Release 7.5.6.

2000-04-04 12:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/abbrev.scm (1.3): Fix several bugs in the handling of
	edit-abbrevs and abbrev-file I/O.

2000-04-04 12:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/things.scm (1.87): Fix definition of INDENT-TO; was
	computing target column incorrectly.

2000-04-04 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.50): Define INSERT.

2000-04-03 12:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.61): In vc-dired mode, don't select buffers
	containing the files being checked in; just pop them up.

2000-04-03 12:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.124): POP-UP-BUFFER: Clarify derivation of
	CURRENT-WINDOW-OK?.

2000-04-01 22:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.60): Fix two bugs in file registration.

2000-04-01 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.181): Fix typo in previous change.

2000-04-01 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.59): Fix status string.

2000-04-01 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.58): Don't prompt for comment when registering
	files in vc-dired.

2000-04-01 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.57): Minor cleanups.

2000-03-31 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.56): Another tweak so that commands work
	correctly in vc-dired buffer: the selected buffer isn't necessarily
	the right one to operate on in that case.

2000-03-31 21:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.180): DIRED-MARK-FILES! should have used
	DIRED-PATHNAME rather than reproducing its functionality.

2000-03-31 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.55): Implement vc-dired mode, with associated
	bound commands, as in Emacs.

2000-03-31 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.179), edwin.pkg (1.250): Implement
	DIRED-MARK-FILES!.

2000-03-31 14:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.54): Implement vc-dired mode, with associated
	bound commands, as in Emacs.

2000-03-31 14:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.177), dired.scm (1.178): Implement
	DIRED-MARK-FILES!.

2000-03-31 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.176): Change DIRED-THIS-FILE to signal an
	error if desired.

2000-03-31 14:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.175): Allow DIRED-THIS-FILE to take buffer in
	place of mark.

2000-03-31 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.174): Allow dired-next-files to take buffer in
	place of mark.

2000-03-31 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vc.scm (1.52), vc.scm (1.53): In VC-Dired buffer, don't
	prompt for comment string unless one is needed.

2000-03-31 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.51): Implement variables VC-DELETE-LOGBUF-WINDOW
	and VC-DEFAULT-INIT-VERSION.

2000-03-31 13:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.50): Add support for "manual" style CVS using
	"cvs edit" and "cvs unedit".

2000-03-31 12:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.49): Add CVS status of LOCALLY-REMOVED.

2000-03-31 09:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: logmer.scm (1.25), mklogs.scm (1.19): Change argument
	structure of RCS-DIRECTORY-LOG to have a single optional OPTIONS
	argument that encapsulates the interesting variations.

2000-03-31 09:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.24): Clean up code by using new date
	representation.

2000-03-31 09:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/compile.scm (1.2): Enumerate the files to be compiled, rather
	than compiling the entire directory.

2000-03-31 09:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/object.scm (1.5): Change date representation to have separate
	values for date and day.

2000-03-31 09:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: load.scm (1.1), compile.scm (1.1): Make standard compile
	and load files.

2000-03-30 18:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: logmer.scm (1.23), mklogs.scm (1.18): Add option to show
	file revisions.  Fix thinko that caused sorting to be wrong within
	days.

2000-03-30 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.22): Adjust ChangeLog formatter to eliminate
	duplicate filenames in entries, and to sort the groups by time
	rather than logentry text.

2000-03-27 18:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.48): Implement VC-FOLLOW-SYMLINKS variable.

2000-03-27 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.47): Implement VC-FOLLOW-SYMLINKS variable.

2000-03-27 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.46): Implement VC-FOLLOW-SYMLINKS variable.

2000-03-27 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vc.scm (1.44), vc.scm (1.45): Implement
	VC-FOLLOW-SYMLINKS variable.

2000-03-27 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.210), rmail.scm (1.70), snr.scm (1.56),
	bufmnu.scm (1.128), dired.scm (1.173), tagutl.scm (1.59): Change
	variable FIND-FILE-HOOKS to be a list.	The procedures in this list
	are called in order, and each must return a buffer, which may be
	different form the argument.  The resulting buffer is to be used in
	place of the argument buffer.  This affects the result of
	FIND-FILE-NOSELECT, AFTER-FIND-FILE, FIND-FILE-REVERT, and
	REVERT-BUFFER.

2000-03-27 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.15): Allow vector-grow to specify the fill
	value for the new slots.

2000-03-27 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.43): Optimize VC-WORKFILE-MODIFIED? to avoid
	running diff if possible.

2000-03-27 12:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.42): Optimize VC-WORKFILE-MODIFIED? to avoid
	running diff if possible.

2000-03-27 12:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.41): Rework the handling of cache
	synchronization; new design is much simpler and less prone to
	errors.  Add messages to the handful of CVS commands that were
	missing them.  Fix a few minor bugs.

2000-03-27 12:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.40): Rework the handling of cache
	synchronization; new design is much simpler and less prone to
	errors.  Add messages to the handful of CVS commands that were
	missing them.  Fix a few minor bugs.

2000-03-27 01:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.21): Fix whitespace typo.

2000-03-26 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.39): Another round of changes, this one mostly
	small cleanups, except: CVS diff now uses "--brief" if available. 
	"--brief" is detected by running "diff" with that argument and
	examining the result code.

2000-03-25 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.38): Extensive changes to simplify the program's
	logic.	Rearranged pages into a more sensible order.  Modified
	VC-DIRED presentation format to match that of Emacs.

2000-03-25 20:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.249): Eliminate now-unused variable
	VC-AFTER-SAVE.

2000-03-25 15:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.177): Add generic hook for taking action
	after a buffer's pathname is changed.

2000-03-25 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.152): Add generic hook for taking action
	after a buffer is saved.

2000-03-25 13:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.248), modefs.scm (1.158): Update for changes
	to VC.

2000-03-24 22:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcnote.scm (14.14): Make the GC notification string be a
	comment.

2000-03-24 22:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcnote.scm (14.13): Another change for the new newline
	convention.

2000-03-24 20:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.37): Stylistic adjustments.

2000-03-24 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vc.scm (1.36), edwin.pkg (1.247): Extensive work to get
	correct operation of CVS support.  Now substantially merged with
	"vc.el" from Emacs 20.6.

2000-03-23 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.246), fileio.scm (1.151), vc.scm (1.35):
	Implement CVS support for VC.  Bring the RCS support of VC more up
	to date.

2000-03-23 17:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.30): #intermediate

2000-03-23 01:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.69): Fix typo introduced in revision 1.67.

2000-03-23 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.245): Change "writable" to "writeable".

2000-03-22 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.107), buffer.scm (1.176), bufmnu.scm
	(1.127), debug.scm (1.49), debuge.scm (1.54), dired.scm (1.172),
	dos.scm (1.52), evlcom.scm (1.63), filcom.scm (1.209), fileio.scm
	(1.150), info.scm (1.134), modlin.scm (1.22), os2.scm (1.49),
	rmail.scm (1.68), rmailsrt.scm (1.13), rmailsum.scm (1.36),
	struct.scm (1.93), techinfo.scm (1.6), txtprp.scm (1.20), unix.scm
	(1.107), vc.scm (1.34): Change "writable" to "writeable".

2000-03-22 12:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.25), runtime.pkg (14.338): Distinguish
	between local and global ctime() strings.

2000-03-22 12:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.67): Procedures that handle ISO C ctime()
	strings have been moved to the runtime system.

2000-03-22 12:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.23), runtime.pkg (14.337), datime.scm
	(14.24): Add procedures to convert between ISO C ctime() strings
	and other time formats.  Additionally, export procedures that
	convert strings to day-of-week, month, and time-zone.

2000-03-22 11:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.115): Don't generate error if command
	expansion in help string refers to non-existent command.

2000-03-22 11:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.171): Fix typo in mode description.

2000-03-21 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/regexp.scm (1.7): Fix typo.

2000-03-21 12:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.17): Update to reflect more conversion to CVS.

2000-03-21 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.16): Change to use ChangeLog for entire Scheme
	tree.

2000-03-20 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/scheme/demo-plotter.scm (1.1): Initial registration with
	CVS.

2000-03-20 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/c/Makefile (1.2): Eliminate "tkCanvArc.c" and "tkMenu.c".

2000-03-20 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* wabbit/wabbit.scratch (1.2): Change RCS "Header" to "Id".

2000-03-20 23:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* pcsample/pcsdisp.com (1.2): File shouldn't have been registered.

2000-03-20 23:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/documentation/cmpaux.txt (1.4),
	compiler/documentation/cmpint.txt (1.12),
	compiler/documentation/safety.txt (1.4),
	compiler/documentation/test-c.c (1.4), microcode/TODO (1.2): Change
	RCS "Header" to "Id".

2000-03-20 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.std (1.2), compiler/Makefile (1.11), swat/Makefile
	(1.5): Change "tags" rule to "TAGS".

2000-03-20 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/improvements/comcon.scm (1.1),
	compiler/improvements/gasn.scm (1.1),
	compiler/improvements/rewsub.scm (1.1), microcode/os2utl/bch.ico
	(1.1), microcode/os2utl/coffee.ico (1.1),
	microcode/os2utl/conses.ico (1.1), microcode/os2utl/edwin.ico
	(1.1), microcode/os2utl/envir1.ico (1.1),
	microcode/os2utl/graphics.ico (1.1), microcode/os2utl/lambda.ico
	(1.1), microcode/os2utl/lambda2.ico (1.1),
	microcode/os2utl/liar1.ico (1.1), microcode/os2utl/liar2.ico (1.1),
	microcode/os2utl/liar3.ico (1.1), microcode/os2utl/mincer.ico
	(1.1), microcode/os2utl/shield1.ico (1.1),
	microcode/os2utl/shield2.ico (1.1), microcode/os2utl/shield3.ico
	(1.1), microcode/os2utl/shield4.ico (1.1): Initial registration
	with CVS.

2000-03-20 21:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* TAGS (1.1): Initial registration with CVS.

2000-03-20 21:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* COPYING (1.1): Initial registration with CVS

2000-03-20 21:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* Makefile.std (1.1): Initial registration with CVS.

2000-03-20 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: logmer.scm (1.20), object.scm (1.4): Changes to generate
	ChangeLog-style output, and to support CVS in addition to RCS.

2000-03-17 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.183): Update to release 7.5.5.

2000-03-16 12:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (4.36): Fix typo.

2000-03-16 12:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.182): Add flonum operations FLO:<= FLO:>=
	FLO:MAX FLO:MIN.

2000-03-16 12:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (4.35): Add expansions for FLO:<= and  FLO:>=.

2000-03-16 12:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.40): Add expansions for FLO:<= and  FLO:>=.

2000-03-16 12:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.5): Add flonum operations FLO:<= FLO:>=
	FLO:MAX FLO:MIN.

2000-03-16 12:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/msort.scm (14.7): Change implementation of MERGE-SORT
	(and therefore SORT) so that it uses the in-place vector-sorting
	algorithm for lists.  The previous algorithm created a stack of
	depth (/ (LENGTH L) 2), which made it impossible to use for large
	lists.	This algorithm creates a stack of depth (/ (LOG (LENGTH L))
	(LOG 2)).
	
	Additionally, tweaked the vector-sorting algorithm to use indexes
	in a slightly more efficient (and clearer) way.

2000-03-14 22:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.46): Use new release version string from
	runtime rather than deprecated string from microcode.

2000-03-10 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.33): Change VC-DIFF to compare the revisions
	using no switches (i.e.  ignoring nothing), and to display the
	differences using the switches of the user's choice.

2000-03-10 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.32): Fix bug: VC couldn't check in changes
	involving just whitespace when diff-switches contained switches
	that said to ignore whitespace.

2000-03-03 09:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: iserch.scm (1.23), sercom.scm (1.65): Change incremental
	search to terminate on RET rather than ESC, for compatibility with
	Emacs.

2000-03-02 13:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.24): Another tweak for new newline convention.

2000-03-02 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.63): Implement adaptive fill from Emacs.

2000-03-02 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: texcom.scm (1.45), vhdl.scm (1.8), verilog.scm (1.8),
	midas.scm (1.21), pasmod.scm (1.50), schmod.scm (1.47), c-mode.scm
	(1.59), tparse.scm (1.72): Define a standard alternative paragraph
	style in which paragraphs are broken by blank lines.  Change all
	modes that want this style to call the standard procedure to define
	it.

2000-03-01 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/xform.scm (4.10): Change to new newline convention.

2000-03-01 18:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.247): Change to compensate for IDENTIFY-WORD
	printing final newline.

2000-03-01 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: version.scm (14.181), savres.scm (14.32), savres.scm
	(14.33): Change to put release version into runtime system rather
	than microcode.

2000-02-28 23:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.175): Add ability to set the default value of
	a variable when the editor isn't running.

2000-02-28 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: texcom.scm (1.44), shell.scm (1.24), schmod.scm (1.46),
	loadef.scm (1.42), javamode.scm (1.10), htmlmode.scm (1.3),
	c-mode.scm (1.58): Re-do definitions of mode-specific abbrev tables
	so that their names are properly registered.

2000-02-28 21:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/texcom.scm (1.43): Fix typo.

2000-02-28 21:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.100): Implement abbrev mode; rework interaction
	between auto-fill, self-insert, and optimized typein; \\{} and \\<>
	in help strings; ability to replace characters in buffer without
	disturbing marks (for case conversion).

2000-02-28 21:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vhdl.scm (1.7), loadef.scm (1.41), midas.scm (1.20),
	pasmod.scm (1.49), tximod.scm (1.23), verilog.scm (1.7): Add
	mode-specific abbrev tables and \\{} doc strings to many major
	modes.

2000-02-28 21:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: schmod.scm (1.45), javamode.scm (1.9), htmlmode.scm
	(1.2), c-mode.scm (1.57), midas.scm (1.19), pasmod.scm (1.48),
	texcom.scm (1.42), tximod.scm (1.22), verilog.scm (1.6), vhdl.scm
	(1.6), shell.scm (1.23), sendmail.scm (1.45): Add mode-specific
	abbrev tables and \\{} doc strings to many major modes.

2000-02-28 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/outline.scm (1.9): Adjust minor-mode toggle logic to match
	new standard.

2000-02-28 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.137), abbrev.scm (1.2), comred.scm (1.117):
	Fix thinko.

2000-02-28 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/abbrev.scm (1.1): Initial revision

2000-02-28 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.116), basic.scm (1.136), winout.scm (1.14),
	bufwiu.scm (1.32), modefs.scm (1.157), filcom.scm (1.208),
	edwin.pkg (1.244), edwin.ldr (1.69), ed-ffi.scm (1.49), decls.scm
	(1.68): Implement abbrev mode.

2000-02-28 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.207): Fix thinko.

2000-02-27 23:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.106), dosfile.scm (1.36): Define
	OS/ABBREV-FILE-NAME.

2000-02-27 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.206): Add logic for saving abbrev tables (to
	be supplied).

2000-02-27 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.27): Fix thinko in previous change.

2000-02-25 15:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comman.scm (1.83), modes.scm (1.32): Clarify meaning of
	optional argument to NAME->foo procedures.

2000-02-25 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.58): Fix bug in which error could be
	signalled by out-of-date tags file.

2000-02-25 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/things.scm (1.86): Implement INDENT-TO.

2000-02-25 14:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/texcom.scm (1.41): Implement COUNT-WORDS-REGION.

2000-02-25 12:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: simple.scm (1.49), texcom.scm (1.40), grpops.scm (1.26),
	edwin.pkg (1.243), regops.scm (1.88), txtprp.scm (1.19), undo.scm
	(1.59): Reimplement case-conversion commands, including new
	capitalize-region.  New implementation utilities low-level code to
	replace strings in buffer without disturbing marks or text
	properties.

2000-02-25 09:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.115), basic.scm (1.135): Integrate
	auto-fill and abbrev into M-x self-insert, as in Emacs.

2000-02-25 09:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.134): Integrate auto-fill and abbrev into M-x
	self-insert, as in Emacs.

2000-02-25 09:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fill.scm (1.62), lincom.scm (1.124), basic.scm (1.133),
	syntax.scm (1.85): Integrate auto-fill and abbrev into M-x
	self-insert, as in Emacs.

2000-02-23 20:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: keymap.scm (1.15), hlpcom.scm (1.114), keymap.scm (1.16),
	keymap.scm (1.17), modefs.scm (1.156): Add option to
	DESCRIBE-BINDINGS to ignore "global" comtabs.

2000-02-23 20:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/shell.scm (1.22): Show shell mode key bindings in mode
	help.

2000-02-23 20:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/calias.scm (1.19): Use image strings when showing key
	bindings.

2000-02-23 20:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/keymap.scm (1.14): Change appearance of DESCRIBE-BINDINGS
	to be more like that of Emacs.

2000-02-23 19:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.113): Fix typo.

2000-02-23 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.112): Fix compiler warning.

2000-02-23 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.111): Fix typo.

2000-02-23 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.242): Export new bindings from keymap.scm

2000-02-23 17:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.110): Generalize documentation expansions to
	include \\< and \\{.

2000-02-23 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/keymap.scm (1.13): Generalize code to generate descriptions
	of key bindings so that it can be used in other contexts.

2000-02-23 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: modes.scm (1.31), comman.scm (1.82): Add means to look up
	modes and commands without necessarily interning new ones.

2000-02-23 12:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.61): Optimize code that toggles auto-fill mode.

2000-02-21 18:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/sos.pkg (1.9): Export SORT-METHODS.

2000-02-21 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/instance.scm (1.9): Fix a couple of bugs reported by Joe
	Marshall: INSTANCE-CONSTRUCTOR-3 macro erroneously quoting arity;
	and INITIALIZE-INSTANCE not accepting optional arguments.

2000-02-14 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rbtree.scm (1.7): Efficiency tweak suggested by Marc
	Feeley.

2000-02-07 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.14): Another round of changes.

2000-02-07 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.24): Trim leading and trailing whitespace
	from header values.

2000-02-07 18:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.174): Don't assume that a buffer-property
	value of #F is equivalent to no value at all.

2000-02-07 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.23), imail-file.scm (1.9): Add bit to
	say whether folder or message has been modified.

2000-02-07 17:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.22), imail-file.scm (1.8),
	imail-rmail.scm (1.13), imail-umail.scm (1.9): Add bit to say
	whether folder or message has been modified.

2000-02-07 15:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.170): Update to release 7.5.3.

2000-02-06 23:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.50): Fix bug: in GCC 2.95.x, the
	callee pops the pointer to a short struct return.

2000-02-04 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.21), imail-file.scm (1.7),
	imail-rmail.scm (1.12), imail-umail.scm (1.8): Implement
	MAYBE-REVERT-FOLDER.

2000-02-04 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.13): Fix improper usage of
	MAYBE-REVERT-BUFFER.

2000-02-03 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-top.scm (1.12), imail-rmail.scm (1.11),
	imail-file.scm (1.6), imail-core.scm (1.20): Rename COUNT-MESSAGES
	-> FOLDER-LENGTH.

2000-02-03 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.34), dosfile.scm (1.35): Fix bug: unable
	to run gzip properly on Windows systems if the location of the gzip
	binary is in a directory with spaces in its name.  Must quote the
	name after it is expanded.

2000-02-02 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.5): Fix fencepost error in STRING->LINES;
	reimplement SEPARATED-APPEND to be faster and to eliminate
	inessential consing; implement SUFFIXED-APPEND and PREFIXED-APPEND.

2000-01-31 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.19): Another tweak.

2000-01-31 20:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.18): Tweak to previous change.

2000-01-31 20:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.17): Adjust for new newline convention.

2000-01-31 20:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.169): Update version number to mark
	changes made to support FreeBSD.

2000-01-31 20:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.25): If TIOCSCTTY is defined, use it.  This
	is required for proper operation under FreeBSD.

2000-01-30 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.c (1.19): Simplify previous change.

2000-01-30 22:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.c (1.18), config.h (9.101): Add special heap
	allocator for FreeBSD, much like the one used for Linux, but with
	small differences.

2000-01-29 20:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.168): Update release version to 7.5.1.

2000-01-27 10:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.66): Fix two bugs: (1) Change M-x
	rmail-get-new-mail to prompt for a file argument rather than a
	string argument.  (2) M-x rmail-output was writing malformed unix
	messages -- the date in the header line is supposed to be in unix
	`ctime' format, not RFC-822 format.

2000-01-25 12:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/image.scm (1.137): Adjust definition of ANSI character set:
	most characters between #x80 and #xA0 are undefined.

2000-01-24 12:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.167): Update for release.

2000-01-21 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.11): Implement imail-toggle-headers and
	imail-search.

2000-01-21 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-file.scm (1.5): Implement simple string search.

2000-01-21 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.19): Add MESSAGE->STRING.

2000-01-20 12:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.10): Add code to edit messages.  Fix many
	bugs found by cref.

2000-01-20 12:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.18): Define HEADER-FIELDS->LINES.

2000-01-20 12:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.10): Use generic procedure
	SET-HEADER-FIELDS!.

2000-01-20 12:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.17): Delete specialize next/previous
	message steps.

2000-01-20 12:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.16): Define procedures to convert between
	headers and strings.

2000-01-20 12:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.9): Use generic procedure
	SET-HEADER-FIELDS!.

2000-01-20 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.9): Implement mail-sending commands.

2000-01-19 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.8): Implement I/O commands.

2000-01-19 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.7): Implement IMAIL-REVERT-BUFFER.

2000-01-19 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.6): Add code to mark and unmark messages.

2000-01-19 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.4): Eliminate some unused procedures, and
	generalize REMOVE-EQUAL-DUPLICATES to REMOVE-DUPLICATES.

2000-01-19 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.8): Use folder properties to hold the
	RMAIL headers, rather than a special slot.  Change manipulation of
	message flags to match implementation changes.

2000-01-19 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.15): Change implementation of message
	flags to make all flags be strings.  Also make sure that
	implementation is truly case insensitive.

2000-01-19 15:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.14): Add FOLDER-FLAGS.

2000-01-19 01:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.5): Another wave of changes.  Implement
	deletion commands.

2000-01-19 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.13), imail-file.scm (1.4): Change
	message implementation so that each message belongs to a single
	folder.  Each message also contains an index within its folder,
	which is automatically updated by the folder implementation.  These
	changes facilitate using message-based navigation rather than index
	computations.

2000-01-19 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.7), imail-umail.scm (1.7),
	imail-file.scm (1.3), imail-core.scm (1.12): Change message
	implementation so that each message belongs to a single folder. 
	Each message also contains an index within its folder, which is
	automatically updated by the folder implementation.  These changes
	facilitate using message-based navigation rather than index
	computations.

2000-01-18 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.11): Add folder properties.

2000-01-18 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.4): Fix some compilation bugs.

2000-01-18 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.5): Rewrite to use packaging system, and to
	load as subpackage of Edwin.

2000-01-18 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/ed-ffi.scm (1.2): Differentiate files with Edwin syntax
	from those without.

2000-01-18 15:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: clean.sh (1.1), compile.scm (1.1), ed-ffi.scm (1.1),
	imail.pkg (1.1): Initial revision

2000-01-18 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.6): Fix typo.

2000-01-18 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.6): Fix typos.

2000-01-18 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/conpkg.scm (1.7): Generate correct constructor when there
	are no exports.

2000-01-18 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: make.scm (1.19), redpkg.scm (1.12), toplev.scm (1.13):
	Change format of ".glo" files to contain package ancestry
	information.

2000-01-18 00:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: primutl.c (9.72), psbtobin.c (9.58), purutl.c (9.50),
	terminfo.c (1.3), transact.c (1.4), ux.h (1.73), uxfs.c (1.19),
	uxproc.c (1.24), uxsig.c (1.34), uxsock.c (1.23), uxterm.c (1.27),
	uxtop.c (1.23), uxtrap.c (1.29), uxutil.c (1.7), x11base.c (1.74),
	x11term.c (1.26): Eliminate compiler warning.

2000-01-18 00:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.84), bchmmg.c (9.94), bchutl.c (1.9),
	bchdmp.c (9.85), bchmmg.c (9.95), bchutl.c (1.10), bignum.c (9.48),
	bintopsb.c (9.71), bitstr.c (9.62), fasload.c (9.87), obstack.h
	(1.10), option.c (1.53), osenv.h (1.9): Eliminate compiler warning.

2000-01-17 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.102), boot.c (9.103): Eliminate compiler
	warning.

2000-01-17 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdrn.c (1.9): Eliminate compiler warning.

2000-01-17 21:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.60): Eliminate compiler warning.

2000-01-17 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.70), boot.c (9.101), findprim.c (9.53),
	bchdrn.c (1.8): Eliminate compiler warning.

2000-01-17 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.22): Fix typo.

2000-01-16 08:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.57), image.scm (1.136), dos.scm (1.51),
	unix.scm (1.105), os2.scm (1.48): Use ANSI char images for all
	operating systems.  Both OS/2 and X appear to do the right thing
	for this.

2000-01-15 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.166): Update release string to 7.5pre2.

2000-01-15 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.3): Implement navigation commands.

2000-01-15 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.10): Add negative predicates for standard
	flags.

2000-01-14 23:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.9): Change external representation of
	message flags.	Implement procedures to map between flags and
	strings.

2000-01-14 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-top.scm (1.2): First rough outline using folder
	interface.

2000-01-14 17:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.8): Add operation MAYBE-REVERT-FOLDER. 
	Add comments describing some thoughts about how IMAP interactions
	will occur with online and disconnected modes.

2000-01-14 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/print.sh (1.2): Add "imail-top.scm".

2000-01-14 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.7): Alphabetize names of standard message
	flags.

2000-01-14 13:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.6): Add procedures to hide manipulation
	of standard message flags.

2000-01-14 13:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-file.scm (1.2), imail-util.scm (1.3), rfc822.scm
	(1.3), load.scm (1.4): Update copyright date.

2000-01-14 13:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.5), imail-umail.scm (1.5): Don't do
	newline translation on RMAIL or unix mail files.

2000-01-14 12:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-rmail.scm (1.4), imail-core.scm (1.5): Use SEEN
	rather than UNSEEN as message flag in imail.

2000-01-14 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.4): Redesign the message-reading code so
	that it can read one message at a time.

2000-01-13 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.3): Implement import and export of
	messages and folders.  Clean up interface to I/O procedures so that
	it can be used for this purpose.

2000-01-13 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-rmail.scm (1.3): Implement import and export of
	messages and folders.  Clean up interface to I/O procedures so that
	it can be used for this purpose.

2000-01-13 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.4): Genericize ->URL.  Hold memoized
	folders with weak pointers.  Add new procedures WRITE-FOLDER and
	MAYBE-STRIP-IMAIL-HEADERS.

2000-01-13 11:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.41): Fix bug: Symbolic constants for
	accessing fields of LPARAM described in documentation do not work
	as advertised.	Instead use explicit numeric constants.

2000-01-13 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.40): Fix bug: code to detect interrupt
	characters was inadvertently broken by the recent upheaval in the
	keyboard handling.

2000-01-12 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.39): Fix bug: when used with European
	keyboards, keys typed with AltGr always had the control and meta
	modifiers set.	Also add code to clear out the keyboard modifiers
	on a language change.

2000-01-09 23:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.165): Complete redesign of keyboard input
	code.  New design adapted from Emacs 20.5 code.

2000-01-09 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntgui.c (1.27), ntscreen.c (1.38), ntscreen.h (1.19):
	Complete redesign of keyboard input code.  New design adapted from
	Emacs 20.5 code.

2000-01-09 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/decls.scm (1.67): Move another call to newline.

2000-01-09 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffrm.scm (1.56): Try a different fix; previous one
	violated the load sequence.

2000-01-09 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/: decls.scm (1.9), compiler.sf (1.10):
	Move another call to newline.

2000-01-09 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.50), compiler/base/toplev.scm (4.59),
	sf/toplev.scm (4.17), runtime/error.scm (14.51): Move another call
	to newline.

2000-01-09 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.sf (1.22), edwin.sf (1.23): Move another call to
	newline.

2000-01-09 22:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.58): Move many more newlines to match
	new convention.

2000-01-09 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: load.scm (14.55), global.scm (14.52): Move another call
	to newline.

2000-01-09 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/decls.scm (1.66): Move another call to newline.

2000-01-09 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.50), os2.scm (1.47), unix.scm (1.104),
	buffrm.scm (1.55), image.scm (1.135), editor.scm (1.246),
	modlin.scm (1.21), snr.scm (1.55), iserch.scm (1.22): Generate set
	of ANSI character image strings, and make that the default set to
	be used under Windows.	This is necessary so that Edwin will work
	more-or-less right with other languages.

2000-01-09 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (4.16): Change to write newlines after the lines
	rather than before.

2000-01-07 18:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.3): Add extra load-option statements.

2000-01-07 18:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-core.scm (1.3): Change names of tags that identify
	property type when encoded as header field.

2000-01-07 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/rfc822.scm (1.2): Some reorganization.	Fix several bugs
	related to parsing of continuation lines.

2000-01-07 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-umail.scm (1.2): Final pass; this code now seems to
	work.

2000-01-07 18:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/imail-util.scm (1.2): Implement READ-LINES.

2000-01-07 18:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.2), imail-rmail.scm (1.2): Fix a
	handful of small bugs.

2000-01-07 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/load.scm (1.2): Add code to bind correct load directory.

2000-01-06 21:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.52): Under NT, always use native I/O,
	independent of the compiler in use.

2000-01-05 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.51): Work around a bug in the Watcom
	runtime library.

2000-01-05 23:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.50): Work around a bug in the Watcom
	runtime library.

2000-01-04 21:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.59), runtime/ntprm.scm (1.33),
	runtime/os2prm.scm (1.45), runtime/dosprm.scm (1.43),
	edwin/fileio.scm (1.149), edwin/filcom.scm (1.205): Change name
	from FILE-WRITABLE? to FILE-WRITEABLE?.

2000-01-04 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* imail/: imail-core.scm (1.1), imail-file.scm (1.1),
	imail-rmail.scm (1.1), imail-top.scm (1.1), imail-umail.scm (1.1),
	imail-util.scm (1.1), load.scm (1.1), rfc822.scm (1.1), print.sh
	(1.1): Initial revision

2000-01-04 12:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: strout.scm (14.13), runtime.pkg (14.336): Change
	interface to string output ports: rename to accumulator output port
	and provide separate operation to extract contents.  Port is reset
	when contents are extracted; previously contents remained in the
	port.

2000-01-04 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.33), runtime.pkg (14.335): Add option
	SAFE-ACCESSORS, for situations where safety is more important than
	speed.

2000-01-01 12:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.65): Fix Y2K bug!

1999-12-30 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.28): Allow BURST-STRING to take a
	character set as a delimiter.

1999-12-28 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.109): Another tweak to REPL mode to get line
	spacing right.

1999-12-27 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.44): Don't forget that .cmd is an
	executable file.

1999-12-22 15:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.108): In M-x inferior-repl-flush-output,
	don't skip forward over newline at end of input expression if end
	marker is at line start.

1999-12-22 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.40): Do FRESH-LINE at beginning of PP, not
	NEWLINE.

1999-12-21 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.148), edwin.sf (1.21): Compensate for
	changed semantics of COPY-FILE.

1999-12-21 21:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.103): Add "/usr/share/info" to
	INFO-DEFAULT-DIRECTORY-LIST.

1999-12-21 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.58): Don't delete file that is target of
	COPY-FILE.  This is inconsistent with action on other operating
	systems, and is also not a good idea.

1999-12-21 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.19): Don't use geteuid to determine the
	current user; use getuid.

1999-12-21 14:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: input.scm (14.20), blowfish.scm (1.18), runtime.pkg
	(14.334): Implement READ-SUBSTRING!, and change definition of
	READ-STRING! so that it no longer takes the substring range
	arguments.

1999-12-21 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.164): Update version for pending release.

1999-12-21 13:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.25), microcode/prosfs.c (1.14),
	microcode/os2fs.c (1.11), microcode/uxfs.c (1.18), microcode/osfs.h
	(1.8), runtime/sfile.scm (14.23): Define new primitive
	FILE-EXISTS-DIRECT?.

1999-12-20 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.107): Make sure that evaluation output always
	starts on a fresh line.

1999-12-20 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/output.scm (14.22): Change definition of WRITE-LINE so
	that the newline is emitted after the object, rather than before it
	as previously.

1999-12-20 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.54): Eliminate instances of WRITE-LINE.

1999-12-20 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.15), compiler/etc/comcmp.scm (1.6),
	runtime/debug.scm (14.40): Eliminate instances of WRITE-LINE.

1999-12-19 21:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/regexp.scm (1.6): Fix typo in last change.  Change order
	of arguments to RE-MATCH-EXTRACT.

1999-12-16 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.57): Fix bug: home directory should always
	be a directory pathname.

1999-12-16 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: regexp.scm (1.5), runtime.pkg (14.333): Implement
	RE-MATCH-EXTRACT.

1999-12-14 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: mklogs.scm (1.14), mklogs.scm (1.15): Missed a directory in
	last change.

1999-12-14 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.13): Update to reflect changes to directory
	structure.

1999-12-10 12:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.61): Don't use **** in comments unless it
	marks an action item.

1999-12-10 12:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.60): Rename procedures that convert between X
	atoms and Scheme symbols.

1999-12-10 12:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.59): Add workaround for broken X selection
	clients, such as GTK+.

1999-12-06 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.102): Don't pass -c argument to gzip or bzip2. 
	This argument was added in revision 1.99.  Although -c works OK for
	gzip, it doesn't work with bzip2.  Since this argument isn't
	needed, and had no effect on the problem it was supposed to solve,
	we won't use it.

1999-11-19 09:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: sfile.scm (14.21), sfile.scm (14.22): New procedure
	DIRECTORY-FILE-NAMES for those cases when DIRECTORY-READ is a pain.

1999-11-11 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.40): Fix bug: don't signal error for
	filenames with ":" in them, which can occur on Samba servers.

1999-11-08 13:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rdflow.scm (1.4), compiler/rtlopt/rcserq.scm
	(4.7), pcsample/pcsdisp.scm (1.3): Change order of arguments to
	VECTOR-MAP.

1999-11-08 13:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.14), runtime/io.scm (14.60),
	runtime/os2graph.scm (1.16), edwin/snr.scm (1.54): Change order of
	arguments to VECTOR-MAP.

1999-11-08 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.13): Change order of arguments to
	VECTOR-MAP.

1999-11-05 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.106): When starting a new REPL, don't
	associate it with the current buffer; avoid confusion by letting
	the user do this manually.

1999-11-05 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.53): SPLIT-LIST now implemented in "utils.scm".

1999-11-05 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.173): Fix bug: UNDO-LOCAL-BINDINGS! must run
	the variable assignment daemons for the impermanent variables, and
	not the permanent variables.  What it was doing was running it on a
	subset of the permanent variables, due to a stupid programming
	error.

1999-11-05 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.46): Implement SPLIT-LIST.

1999-10-31 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.172), struct.scm (1.92), grpops.scm (1.25),
	macros.scm (1.65): Eliminate macro DEFINE-NAMED-STRUCTURE.

1999-10-31 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modes.scm (1.30): Fix typo.

1999-10-31 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.18): Eliminate reference to
	GROUP-INDEX:MODIFIED-TICK.

1999-10-31 20:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modes.scm (1.29): Retain inheritance information for major
	modes.

1999-10-31 20:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.81): Eliminate %SYMBOL->STRING.

1999-10-31 10:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.105): Fix thinko.

1999-10-31 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.104): Change argument to CURRENT-REPL-BUFFER
	and CURRENT-REPL-BUFFER* to be optional.

1999-10-31 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: intmod.scm (1.103), edwin.pkg (1.241): Create mechanism
	and command to associate an inferior REPL buffer with another
	buffer for evaluation purposes.  Change M-x repl to automatically
	associate a newly-created REPL buffer with the current buffer.

1999-10-27 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2sock.c (1.14): Eliminate compiler warning.

1999-10-26 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/make.scm (1.5): Set the working directory when loading this
	file.

1999-10-22 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.102): Don't add newline before prompt at
	beginning of buffer.

1999-10-22 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.40): Fix thinko.

1999-10-22 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.101): Rewrite M-x repl so that it is easy to
	generate new REPL buffers in new environments.

1999-10-22 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.39), runtime.pkg (14.332): Implement
	EXTEND-IC-ENVIRONMENT.

1999-10-22 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.32): Bind USER-INITIAL-SYNTAX-TABLE to
	USER-INITIAL-ENVIRONMENT.

1999-10-08 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/javamode.scm (1.8): Change $ back to prefix character in
	PHP mode.  This is required for it to work right with ${...}
	syntax.

1999-10-08 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/javamode.scm (1.7): Don't modify c-continued-brace-offset
	in PHP mode.  PHP mode no longer inherits from Java mode.

1999-10-07 13:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/javamode.scm (1.6): Define $ to be symbol constituent
	rather than prefix character in PHP mode.

1999-10-07 13:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.33), unix.scm (1.101): Add suffixes for
	HTML mode.

1999-10-07 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.68): HTML mode must be loaded after Text mode.

1999-10-07 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/README (1.2): Update for new directory arrangement.

1999-10-07 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.67), edwin.pkg (1.240), ed-ffi.scm (1.48),
	decls.scm (1.65): Implement HTML mode.

1999-10-07 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/htmlmode.scm (1.1): Initial revision

1999-10-07 11:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/javamode.scm (1.5): Fix typo.

1999-10-07 11:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: c-mode.scm (1.56), cinden.scm (1.20): Tweak syntax and
	naming a bit.

1999-10-07 11:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/javamode.scm (1.4): Implement PHP mode.

1999-10-07 11:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.100): Implement PHP mode.

1999-09-14 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.32): Fix thinko.

1999-09-14 16:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.57): Poll subprocess for output after it has
	exited, to make sure output isn't lost.

1999-09-14 16:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/compile.scm (1.13): Always run compilation subprocesses
	with pipes.

1999-09-11 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.99): Change calls to gzip and bzip2 to pass
	"-c" option.

1999-09-10 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.56): Look for USER environment variable
	before searching password file.  This is needed for systems in
	which users aren't recorded in the password file.

1999-09-10 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.29): Don't hack mail address any longer. 
	Students now have real accounts.

1999-09-06 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/optiondb.scm (1.8): Add "krypt" to standard set of load
	options.

1999-08-26 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comint.scm (1.30), intmod.scm (1.100): Fix
	FOO-flush-output so that it works right when the output doesn't
	start with a newline.

1999-08-23 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/shell.scm (1.21): Fix typo.

1999-08-23 00:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.147): Fix typo.

1999-08-20 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/regexp.scm (1.4), edwin/dosfile.scm (1.31),
	edwin/rmail.scm (1.64), edwin/rmailsrt.scm (1.12), edwin/shell.scm
	(1.20), edwin/malias.scm (1.5), edwin/telnet.scm (1.15),
	edwin/manual.scm (1.16), edwin/snr.scm (1.52), 6001/floppy.scm
	(1.26): Change string/substring regular-expression procedures to
	return a set of registers on a successful match rather than
	modifying a global set of registers.  This fixes the problem in
	which an unlucky thread switch can generate an error or incorrect
	answer.

1999-08-15 11:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2sock.c (1.13), ntsock.c (1.8): Fix typo.

1999-08-13 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: blowfish.scm (1.16), blowfish.scm (1.17): Improve
	method used to compute initialization vectors.

1999-08-13 14:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.15): Fix typo.

1999-08-13 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsock.c (1.21), ntsock.c (1.7), os2sock.c (1.12):
	Fix calling arguments to gethostbyaddr.

1999-08-13 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prbfish.c (1.8), uxsock.c (1.20): Fix typo.

1999-08-13 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: socket.scm (1.15), runtime.pkg (14.331): Implement and
	export various host-name manipulating procedures.  Change
	TCP-SERVER-CONNECTION-ACCEPT to accept the peer address as an
	argument and to return only a single value.

1999-08-13 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.14): Add new ECB and OFB modes.

1999-08-13 14:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prbfish.c (1.7): Fix typo.

1999-08-13 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxsock.c (1.17), uxsock.h (1.9), uxsock.c (1.19),
	os2sock.c (1.11), ntsock.c (1.6): Add new primitive
	GET-HOST-BY-ADDRESS.

1999-08-13 13:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prbfish.c (1.6): Add ECB and OFB modes.

1999-08-10 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.66): Don't load krypt.

1999-08-10 12:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.13): Wipe buffer strings that might
	contain plaintext.

1999-08-10 12:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.204), fileio.scm (1.146), dosfile.scm
	(1.30), edwin.pkg (1.239), unix.scm (1.98), dired.scm (1.170),
	rmail.scm (1.63), comint.scm (1.29): Eliminate use of krypt and the
	".ky" file suffix.  Change all encryption commands to use Blowfish,
	and also to be more paranoid about eliminating passphrases and
	plaintext after use.

1999-08-10 12:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.184): Eliminate PROMPT-FOR-PASSWORD in favor
	of CALL-WITH-PASS-PHRASE.  The latter wipes the string containing
	the pass phrase after use.

1999-08-09 15:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.22): Tweak /dev/random loop to be a little
	cleaner.

1999-08-09 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.21): More changes for cold-load problems.

1999-08-09 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.20): Tweak previous change so that
	cold-load sequence works.  Change MAKE-RANDOM-STATE to avoid use of
	CONGRUENTIAL-RNG when /dev/urandom is being used.

1999-08-09 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.19): If /dev/random is available, use it
	to seed the PRNG.

1999-08-09 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/output.scm (14.21): Fix typo.

1999-08-09 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prbfish.c (1.5): Eliminate BLOWFISH-CFB64.	Modify
	BLOWFISH-CBC and BLOWFISH-CFB64-SUBSTRING to accept the output
	buffer as an argument.	This allows better control of memory
	allocation.  Also modify BLOWFISH-CFB64-SUBSTRING to return the new
	value of `num' so that the Scheme code need not re-compute it.

1999-08-09 14:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: cpress.scm (1.12), blowfish.scm (1.12): Fix typo.

1999-08-09 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.11): Change to use new primitives that
	reduce consing.  Eliminate BLOWFISH-CFB64; rename
	BLOWFISH-CFB64-SUBSTRING to be BLOWFISH-CFB64.	Don't preprocess
	key-string with MD5 in BLOWFISH-ENCRYPT-PORT.  Eliminate
	BLOWFISH-ENCRYPT-STRING and BLOWFISH-ENCRYPT-SUBSTRING.

1999-08-09 14:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.11): Change internal name from
	WRITE-SUBSTRING to WRITE-BYTES to avoid collision with new global
	procedure WRITE-SUBSTRING.

1999-08-09 14:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.183): Change calls to PROMPT-FOR-PASSWORD to
	say "pass phrase" rather than "password", to encourage use of
	longer phrases.

1999-08-09 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.29), unix.scm (1.97), filcom.scm (1.203):
	Runtime system no longer runs MD5 on the passphrase handed to
	Blowfish.

1999-08-09 14:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: output.scm (14.20), runtime.pkg (14.330): Add new
	procedure WRITE-SUBSTRING.

1999-08-09 12:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.10): Add key to enable krypt support, just
	like the one used for blowfish.

1999-08-09 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: blowfish.scm (1.9), blowfish.scm (1.10): Arrgh.  Fix
	another instance of the init-vector thinko.

1999-08-08 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.202), dosfile.scm (1.28), unix.scm (1.96):
	Modify usage of blowfish encryption to match new design in which
	header manipulation handles the init-vector.

1999-08-08 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.8): Fix my broken understanding of the
	role of the init-vector in the encryption process.  Essential
	property of the init-vector in CFB encryption is that no two
	messages encrypted with the same key should also use the same
	init-vector.  New design will read files encrypted with previous
	scheme, but writes them using the current time as the init-vector,
	and writes the init-vector into the file as part of the header.

1999-07-31 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.27), apropos.scm (1.5): Fix thinko.

1999-07-26 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.14): Change TCP-SERVER-CONNECTION-ACCEPT to
	return two values rather than three.

1999-07-06 11:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/apropos.scm (1.4): Fix argument order for SUBSTRING?. 
	Reformat.

1999-07-06 11:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (14.16): Copy the arguments list returned by
	*ARGS*.

1999-06-25 22:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.73): Don't use RE-REGISTERS and
	SET-RE-REGISTERS! any more; use direct access to the REGISTERS
	variable instead.  This code broke when the representation of
	RE-REGISTERS changed recently.	Rather than expose the entire
	abstraction to this code, it seems better to just bypass it
	altogether.

1999-06-22 14:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/regexp.scm (1.3): Change external representation of
	regular-expression registers so that predicate is uniquely true of
	these objects.	Modify re-match-start-index and re-match-end-index
	to accept one of these objects as an optional argument, meaning to
	reference the object rather than the internal registers.

1999-06-21 21:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.26): Fix fencepost error in
	STRING-SEARCH-ALL.

1999-06-21 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.25), dosdir.scm (1.9): Change arguments
	to string-search procedures to make them consistent with
	regular-expression searches.

1999-06-21 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/regexp.scm (1.2): Change string regexp search procedures
	to make their returned indexes consistent with the string search
	procedures.

1999-06-20 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: tscript.scm (1.4), emacs.scm (14.27), runtime.pkg
	(14.329): Fix bug: scheme-under-emacs stopped working due to
	port-encapsulation changes.  This isn't a general fix -- it only
	handles the one kind of encapsulation that occurs in this place. 
	If other kinds of encapsulation are used, this will have to be
	generalized.

1999-06-10 12:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.24): Fix fencepost error in
	string-search-forward.

1999-06-06 14:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.95): Add support for files compressed with
	bzip2.

1999-06-02 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.12): Add a few more directories to have their
	RCS.log files updated.

1999-05-21 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.27): Rename re-string-search to
	re-string-search-forward.

1999-05-18 13:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.7): Add lock to blowfish code.  The code
	now will work only if the key file is in the appropriate location.

1999-05-15 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/lambda.scm (14.15): Eliminate #!aux quoting problem.

1999-05-14 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.33): Fix previous change.  Problem is
	subtle -- LAMBDA-AUXILIARY-TAG was being used in one place as an
	expression and in another as a constant.  Now it is defined to be a
	constant, and the expression usage has been tweaked to expect a
	constant.

1999-05-14 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.32): Change #!aux to be an interned symbol.

1999-05-12 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: chrsyn.scm (1.1), regexp.scm (1.1): Initial revision

1999-05-12 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.21), runtime/optiondb.scm (1.7),
	runtime/rgxcmp.scm (1.110), runtime/runtime.pkg (14.328),
	edwin/comhst.scm (1.7), edwin/decls.scm (1.64), edwin/ed-ffi.scm
	(1.47), edwin/edwin.ldr (1.65), edwin/edwin.pkg (1.238),
	edwin/evlcom.scm (1.62), edwin/lspcom.scm (1.159), edwin/regexp.scm
	(1.72), edwin/rmail.scm (1.62), edwin/rmailsrt.scm (1.11),
	edwin/rmailsum.scm (1.35), edwin/strtab.scm (1.47),
	edwin/syntax.scm (1.84): Move regular-expression support to the
	runtime system, where it is now a loadable option.

1999-05-12 22:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/compile.scm (1.12): Fix typo.

1999-05-11 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.53): Implement new procedures
	SIMPLE-COMMAND-LINE-PARSER and ARGUMENT-COMMAND-LINE-PARSER and
	export them to global.

1999-05-11 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.245), edwin.pkg (1.237): Use new procedure
	SIMPLE-COMMAND-LINE-PARSER in place of SIMPLE-OPTION-PARSER.

1999-05-11 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: load.scm (14.52), runtime.pkg (14.327): Implement new
	procedures SIMPLE-COMMAND-LINE-PARSER and
	ARGUMENT-COMMAND-LINE-PARSER and export them to global.

1999-05-10 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2utl/makefile.cmn (1.12), ntutl/makefile (1.24),
	ntutl/makefile.wcc (1.13): Change option code so that "-compiler"
	and "-edwin" can be specified together, in which case they select
	the "all.com" band.  Also modify the heap-sizing code so that the
	default constant size is taken from the band, and the heap size is
	increased by the amount of heap in the band.

1999-05-10 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.49): Change option code so that "-compiler"
	and "-edwin" can be specified together, in which case they select
	the "all.com" band.  Also modify the heap-sizing code so that the
	default constant size is taken from the band, and the heap size is
	increased by the amount of heap in the band.

1999-05-08 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: screen.scm (1.117), bufwin.scm (1.307): Delete
	definitions of FIX:MIN and FIX:MAX, which are now defined by the
	runtime system.

1999-05-07 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.23): Fix thinko in previous change.

1999-05-07 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.22), runtime.pkg (14.326): Implement
	STRING-SEARCH-ALL and SUBSTRING-SEARCH-ALL.

1999-05-07 17:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.21): Fix fencepost bug.

1999-05-07 17:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.20): Implement Boyer-Moore string search. 
	Also add procedures to reverse string contents.

1999-05-07 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.20): Fix bug: "string.scm" had wrong
	package designation.

1999-05-07 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosdir.scm (1.8): Implement Boyer-Moore string search. 
	Also add procedures to reverse string contents.

1999-05-07 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.325): Implement Boyer-Moore string
	search.  Also add procedures to reverse string contents.

1999-05-07 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.4): Implement FIX:MIN and FIX:MAX.

1999-05-04 13:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: pwedit.scm (1.7), loadef.scm (1.40): Interpret contents
	of password-file variable as relative to the user's home directory.

1999-05-04 13:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/pwedit.scm (1.6): Define variable that specifies the
	password filename for the view-password-file command.

1999-05-04 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.39), pwedit.scm (1.5): Define variable that
	specifies the password filename for the view-password-file command.

1999-05-04 13:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.38): Define variable that specifies the
	password filename for the view-password-file command.

1999-04-27 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.25): Change default font to "8.Courier".

1999-04-27 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2sock.c (1.10): Add definition needed for use with
	newer versions of the Developer's Toolkit for OS/2.

1999-04-27 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.22): Fix thinko in error call.

1999-04-26 12:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.43): Fix logic so that
	CURRENT-HOME-DIRECTORY doesn't generate an error if neither HOME
	nor USER is defined.

1999-04-24 00:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.32): Fix bug that occurred when the HOME
	environment variable wasn't set.

1999-04-19 21:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syncproc.scm (1.8): Use reasonable default working
	directory.

1999-04-08 01:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.21), runtime.pkg (14.324): Implement
	remaining time-representation conversions.

1999-04-07 17:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.19), datime.scm (14.20): Implement
	remainder of RFC-822 syntax: optional day-of-week, two-digit year,
	and named time zones.  Fix bug: formerly would accept times with
	more than one colon in a row.

1999-04-07 00:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.19): This change requires microcode 11.163
	or later.
	
	Rationalize naming of time-conversion procedures.  Implement
	procedures to manage decoded time in UTC.  Implement procedure to
	convert an RFC-822 time string to decoded-time format.

1999-04-07 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.18), dosprm.scm (1.42), krypt.scm (1.9),
	ntprm.scm (1.31), os2prm.scm (1.42), savres.scm (14.31), unxprm.scm
	(1.55), version.scm (14.180), runtime.pkg (14.323): This change
	requires microcode 11.163 or later.
	
	Rationalize naming of time-conversion procedures.  Implement
	procedures to manage decoded time in UTC.  Implement procedure to
	convert an RFC-822 time string to decoded-time format.

1999-04-07 00:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: string.scm (14.18), runtime.pkg (14.322): Implement
	BURST-STRING.

1999-04-07 00:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntapi.h (1.11), ntenv.c (1.18), os2api.h (1.12),
	os2env.c (1.12), prosenv.c (1.16), syscall.h (1.12), ux.h (1.72),
	uxenv.c (1.18), uxtop.c (1.22), version.h (11.163): Implement
	primitive to decode unix time to UTC.

1999-03-25 20:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.30): Fix type error.

1999-03-25 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fileio.scm (1.18): Fix thinko.

1999-03-25 20:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.33): Work around stupid restriction in 8.0
	compiler.

1999-03-24 22:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/udata.scm (14.20): Eliminate compiler warning.

1999-03-24 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.13): Fix: probe for different kernel
	files.

1999-03-17 21:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.54), modwin.scm (1.41): Fix bug: modeline
	"modified" indicator not properly updated when buffer unmodified
	and initial changes are outside the visible portion of the buffer.

1999-03-16 22:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.123): Change
	SHRINK-WINDOW-IF-LARGER-THAN-BUFFER so that it will grow the window
	if it is a pop-up window that is smaller than it wants to be.

1999-03-14 22:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.31): Signal an error when *parser-radix* is
	set to a non-default radix and the reader encounters radix-10
	syntax that is meaningless under the given radix.

1999-03-09 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prntenv.c (1.9), ntapi.h (1.10): Implement primitives
	to provide registry access.

1999-03-04 01:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.57): Use pathname object for info
	descriptor rather than namestring.  This will allow runtime system
	to use these descriptors on operating systems other than the one on
	which the code is compiled.

1999-03-04 00:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.321): Load all pathname types on every
	operating system.  This allows pathname objects dumped on one
	system to be used on another.

1999-03-04 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.56): Use pathname object for info
	descriptor rather than namestring.  This will allow runtime system
	to use these descriptors on operating systems other than the one on
	which the code is compiled.

1999-03-04 00:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.62): Allow debugging info descriptor to be
	a pathname as an alternative to a namestring.

1999-03-03 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: win32.scm (1.10), make.scm (3.99): This version of Edwin
	requires microcode 11.162 or later if used under Win32.
	
	Extensive changes to use new single input queue, and to implement
	event-stream previewer.  (The single input queue was required for
	proper implementation of the previewer.)  With this change, the
	Win32 platform has the ability to abort out of any Edwin command,
	as has been true of all other platforms for years.
	
	I also took the opportunity to considerably clean up the event
	code.

1999-03-03 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntscreen.c (1.37), ntscreen.h (1.18), ntgui.c (1.26),
	version.h (11.162): Extensive changes to implement a single input
	queue for all screens.	This was once kludged around in Edwin but
	is now fixed.

1999-03-01 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.24): Revert previous change, which was really
	due to a bug in the runtime system's handling of input events.

1999-03-01 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.32): Revamp input-event signalling
	mechanism to more explicitly distinguish between events with
	permanent registration and those with temporary registration.  The
	procedure DEREGISTER-ALL-EVENTS was deregistering permanently
	registered events, thus causing various subtle failures -- mostly
	in Edwin.

1999-02-28 01:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.23): Another patch to attempt to fix redisplay
	problems with long online operations.

1999-02-28 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.58): Eliminate definition of
	WITH-THREAD-EVENTS-BLOCKED, which is now implemented by the runtime
	system.

1999-02-25 17:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.29): Change heuristics used to find a
	temporary directory.

1999-02-25 17:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxprm.scm (1.54), os2prm.scm (1.41), ntprm.scm (1.28):
	Change heuristics used to find a temporary directory.

1999-02-25 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: port.scm (1.18), port.scm (1.19): Guarantee that
	port-type specifies standard operations.

1999-02-24 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.99): Eliminate kludge that used to compensate
	for continuations not knowing about the BLOCK-THREAD-EVENTS flag.

1999-02-24 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.59), os2graph.scm (1.15), x11graph.scm
	(1.49): Use new procedure WITH-THREAD-EVENTS-BLOCKED.

1999-02-24 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufout.scm (1.13), edwin/bufinp.scm (1.8), edwin/intmod.scm
	(1.98), edwin/artdebug.scm (1.28), edwin/winout.scm (1.13),
	edwin/debug.scm (1.48), runtime/ttyio.scm (1.12), runtime/emacs.scm
	(14.26), runtime/fileio.scm (1.17), runtime/strnin.scm (14.8),
	runtime/strott.scm (14.9), runtime/strout.scm (14.12),
	runtime/genio.scm (1.15), runtime/port.scm (1.17),
	runtime/runtime.pkg (14.320): Merge different port-type
	constructors into MAKE-PORT-TYPE.

1999-02-24 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.31), conpar.scm (14.38), runtime.pkg
	(14.319): Implement WITH-THREAD-EVENTS-BLOCKED and hook it into the
	continuation parser.

1999-02-24 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.37), runtime.pkg (14.318): Pass
	continuation's BLOCK-THREAD-EVENTS? member through the stack
	parser.  This isn't right, but unless we implement
	WITH-THREAD-EVENTS-BLOCKED, there's no way to do better.

1999-02-24 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.30): Save "block-thread-events" flag in
	continuations.	This guarantees that it will be properly stored no
	matter where the continuation is captured.

1999-02-23 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.28), thread.scm (1.29): Save
	"block-thread-events" flag in continuations.  This guarantees that
	it will be properly stored no matter where the continuation is
	captured.

1999-02-23 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/contin.scm (14.10): Save "block-thread-events" flag in
	continuations.	This guarantees that it will be properly stored no
	matter where the continuation is captured.

1999-02-23 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: contin.scm (14.9), thread.scm (1.26), runtime.pkg
	(14.317), thread.scm (1.27): Save "block-thread-events" flag in
	continuations.	This guarantees that it will be properly stored no
	matter where the continuation is captured.

1999-02-23 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.25), runtime.pkg (14.316), rep.scm
	(14.54), rep.scm (14.55): When user aborts a computation,
	deregister all outstanding thread events.

1999-02-23 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntio.c (1.11): Fix bug: when running something in a
	REPL buffer, Edwin would completely ignore all input.  It turned
	out that the "select" mechanism was only looking at events for the
	console window, and not for other windows, so it was blocking
	indefinitely.

1999-02-22 00:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.57): Fix bug: when switching between fvwm2
	virtual desktops, Edwin wasn't redisplaying immediately if it was
	busy doing something else.  This happened because it was not
	processing "expose" events until it returned to the command level.

1999-02-17 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosproc.scm (1.3), runtime/strout.scm (14.11),
	runtime/strott.scm (14.8), runtime/strnin.scm (14.7),
	edwin/tterm.scm (1.30), edwin/bufinp.scm (1.7): Eliminate
	references to obsolete port operations.

1999-02-17 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.98): Changes corresponding to new transcript
	mechanism in runtime 14.179.

1999-02-17 23:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.97): Minor tweaks so that transcript of REPL
	buffer is recorded properly.

1999-02-17 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.179): * Add mechanism to encapsulate one
	port in another, and to build	wrappers around selected operations
	on the encapsulated port.
	
	* Use new encapsulation mechanism to reimplement transcript
	facility   so that each transcript is associated with a particular
	REPL.	 Previously the transcript was directly associated with the
	console    port.
	
	  This change is the goal of all of the port changes from this past
	  week.  (I'm a little surprised at the depth of changes required.)
	
	  This has the side effect of increasing modularity, since the
	  transcript code is now concentrated in one file rather than being
	  integrated into the console port.
	
	* Export procedure OUTPUT-PORT/FRESH-LINE to the global
	environment.	This was an oversight from previous changes.

1999-02-17 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.236), tterm.scm (1.29): Eliminate references
	to old transcript mechanism.

1999-02-17 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.315): * Add mechanism to encapsulate one
	port in another, and to build	wrappers around selected operations
	on the encapsulated port.
	
	* Use new encapsulation mechanism to reimplement transcript
	facility   so that each transcript is associated with a particular
	REPL.	 Previously the transcript was directly associated with the
	console    port.
	
	  This change is the goal of all of the port changes from this past
	  week.  (I'm a little surprised at the depth of changes required.)
	
	  This has the side effect of increasing modularity, since the
	  transcript code is now concentrated in one file rather than being
	  integrated into the console port.
	
	* Export procedure OUTPUT-PORT/FRESH-LINE to the global
	environment.	This was an oversight from previous changes.

1999-02-17 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: port.scm (1.16), rep.scm (14.53), tscript.scm (1.3),
	ttyio.scm (1.11): * Add mechanism to encapsulate one port in
	another, and to build	wrappers around selected operations on the
	encapsulated port.
	
	* Use new encapsulation mechanism to reimplement transcript
	facility   so that each transcript is associated with a particular
	REPL.	 Previously the transcript was directly associated with the
	console    port.
	
	  This change is the goal of all of the port changes from this past
	  week.  (I'm a little surprised at the depth of changes required.)
	
	  This has the side effect of increasing modularity, since the
	  transcript code is now concentrated in one file rather than being
	  integrated into the console port.
	
	* Export procedure OUTPUT-PORT/FRESH-LINE to the global
	environment.	This was an oversight from previous changes.

1999-02-16 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/port.scm (1.15): When doing port-type inheritance, don't
	inherit any standard operations if one or more is given.

1999-02-16 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (14.25): Use new port types mechanism.

1999-02-16 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.314), runtime/emacs.scm (14.24),
	runtime/ttyio.scm (1.10), runtime/fileio.scm (1.16),
	runtime/genio.scm (1.14), runtime/strout.scm (14.10),
	runtime/strott.scm (14.7), runtime/strnin.scm (14.6),
	edwin/debug.scm (1.47), edwin/winout.scm (1.12), edwin/artdebug.scm
	(1.27), edwin/intmod.scm (1.96), edwin/bufinp.scm (1.6),
	edwin/bufout.scm (1.12): Use new port types mechanism.

1999-02-16 14:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.313): Export MAKE-PORT.

1999-02-16 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: port.scm (1.14), runtime.pkg (14.312), output.scm
	(14.19): Change the port implementation to have a type that holds
	the operations on the port.  This new implementation supports a
	crude form of single inheritance.

1999-02-16 13:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.311), infutl.scm (1.61): Don't export
	{IN,OUT}PUT-PORT/OPERATION/ procedures to the global environment.

1999-02-16 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ttyio.scm (1.8), ttyio.scm (1.9): Implement FRESH-LINE
	operation for generic, file, and console ports.

1999-02-16 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.58), genio.scm (1.13), fileio.scm (1.15),
	ttyio.scm (1.7), runtime.pkg (14.310): Implement FRESH-LINE
	operation for generic, file, and console ports.

1999-02-16 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.57): Allow CLOSE-INPUT-PORT and
	CLOSE-OUTPUT-PORT to independently close either side of an I/O
	port.

1999-02-16 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.308), io.scm (14.56), runtime.pkg
	(14.309): Allow CLOSE-INPUT-PORT and CLOSE-OUTPUT-PORT to
	independently close either side of an I/O port.

1999-02-16 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: port.scm (1.13), runtime.pkg (14.307): Allow
	CLOSE-INPUT-PORT and CLOSE-OUTPUT-PORT to independently close
	either side of an I/O port.

1999-02-16 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.55), genio.scm (1.12): Allow
	CLOSE-INPUT-PORT and CLOSE-OUTPUT-PORT to independently close
	either side of an I/O port.

1999-02-15 20:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.29): Eliminate some randomness.

1999-02-15 19:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/strott.scm (14.6): Eliminate WRITE-STRING output-port
	operation.

1999-02-15 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: output.scm (14.18), runtime.pkg (14.306), port.scm
	(1.12), fileio.scm (1.14), genio.scm (1.11): Eliminate WRITE-STRING
	output-port operation.

1999-02-15 19:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/winout.scm (1.11): Change output port to implement
	WRITE-SUBSTRING rather than WRITE-STRING.

1999-02-15 19:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.305), fileio.scm (1.13), genio.scm
	(1.10): Eliminate READ-CHARS input-port operation.

1999-02-15 19:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.56): Eliminate use of READ-CHARS operation.

1999-02-15 19:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.304), fileio.scm (1.12), genio.scm
	(1.9): Eliminate WRITE-CHARS operation on output ports.

1999-02-03 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debug.scm (1.45), debug.scm (1.46): Fix fencepost error
	when printing bindings.  Show complete environment chain;
	previously omitted global environment.	Eliminate gratuitous use of
	EVAL.

1999-02-02 14:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.55): Guarantee that symbols are canonicalized
	when loading files for Edwin.

1999-02-01 11:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.94), os2.scm (1.46): Fix thinko.

1999-02-01 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.24): Allow working directory to be a
	pathname.

1999-02-01 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syncproc.scm (1.7): Run merge-pathnames on the working
	directory of a subprocess.

1999-01-31 22:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: process.scm (1.55), make.scm (3.97): Extensive changes to
	use the SYNCHRONOUS-SUBPROCESS support that is now built in to the
	runtime system.

1999-01-31 22:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.64): Must load SYNCHRONOUS-SUBPROCESS support.

1999-01-31 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vc.scm (1.31), unix.scm (1.93), sendmail.scm (1.44),
	rmail.scm (1.61), dirw32.scm (1.4), dirunx.scm (1.12), diros2.scm
	(1.4), os2.scm (1.45): Change calls to OS/FIND-PROGRAM so that they
	explicitly pass the exec-path, which may be different from the
	default path.

1999-01-31 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2prm.scm (1.40), ntprm.scm (1.27), unxprm.scm (1.53):
	Reverse optional arguments for OS/FIND-PROGRAM.

1999-01-31 22:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.49), os2.scm (1.44): Eliminate
	DOS/DEFAULT-SHELL-FILE-NAME and DOS/WINDOWS-TYPE.

1999-01-31 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.235): Remove PROCESS-ENVIRONMENT-BIND, which
	has been moved to runtime system.  Eliminate spurious binding of
	BUFFER-DEFAULT-DIRECTORY.

1999-01-31 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.26), unix.scm (1.92): Remove definitions
	that are now present in the runtime system.

1999-01-31 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.178): Increment runtime version to
	account for subprocess changes.

1999-01-31 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.303): More subprocess changes.

1999-01-31 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.23): Procedure PROCESS-ENVIRONMENT-BIND
	moved from Edwin to here.

1999-01-31 22:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syncproc.scm (1.6): Eliminate
	CONDITION-TYPE:SUBPROCESS-EXITED.  Add options to specify buffer
	sizes.

1999-01-31 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syncproc.scm (1.4), syncproc.scm (1.5): Change name:
	RUN-SYNCHRONOUS-PROCESS to RUN-SYNCHRONOUS-SUBPROCESS.	Change
	calling convention of RUN-SYNCHRONOUS-SUBPROCESS and
	RUN-SHELL-COMMAND to accept keyword arguments, and eliminate
	MAKE-SUBPROCESS-CONTEXT.

1999-01-31 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.302), syncproc.scm (1.3): Change name:
	RUN-SYNCHRONOUS-PROCESS to RUN-SYNCHRONOUS-SUBPROCESS.	Change
	calling convention of RUN-SYNCHRONOUS-SUBPROCESS and
	RUN-SHELL-COMMAND to accept keyword arguments, and eliminate
	MAKE-SUBPROCESS-CONTEXT.

1999-01-30 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.61): Fix bug: when evaluate-in-inferior-repl
	true, and there's no repl buffer, an command requiring evaluation
	would fail.

1999-01-30 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.182): Fix thinko.

1999-01-29 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syncproc.scm (1.2): Fix thinko.  Change definition of
	RUN-SYNCHRONOUS-PROCESS so that it returns the exit code of the
	subprocess.

1999-01-29 17:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.301), ntprm.scm (1.26), os2prm.scm
	(1.39), ed-ffi.scm (1.19), optiondb.scm (1.6), unxprm.scm (1.52):
	Add support for running synchronous subprocesses outside of Edwin.

1999-01-29 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syncproc.scm (1.1): Initial revision

1999-01-29 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/pwedit.scm (1.4): Fix thinko.

1999-01-29 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.181): Change prompt history yet again.  Now
	the history is copied before use, and the user's editing changes
	are remembered for each element in the history.  When the user
	exits the minibuffer, all of the changes are discarded.
	
	Also: eliminate HISTORY-DEFAULT option; HISTORY-INDEX now subsumes
	that role.

1999-01-29 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/compile.scm (1.11): Eliminate use of HISTORY-DEFAULT prompt
	option.

1999-01-28 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.201): Fix typo.

1999-01-28 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.180): Fix thinko in history mechanism.

1999-01-28 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.179): Fix typo.

1999-01-28 01:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.200): Use new prompt history.

1999-01-28 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/compile.scm (1.10): History never sets prompt default
	except when explicitly instructed.

1999-01-28 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.178), compile.scm (1.8), compile.scm (1.9):
	History never sets prompt default except when explicitly
	instructed.

1999-01-28 01:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.132), compile.scm (1.7): Use new
	prompt-history mechanism.

1999-01-28 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.177): Fix how defaults are derived from
	history.

1999-01-28 00:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.176), edwin.pkg (1.234): Make prompt
	history mechanism convenient: histories are specified by symbols,
	and tracked automatically by the prompting code.

1999-01-27 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/ring.scm (1.12): Change RING-LIST to copy the value that it
	returns.

1999-01-27 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.155): Bind eval-expression to M-: for
	compatibility with Emacs 19.

1999-01-27 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/mousecom.scm (1.3): Add USUAL-INTEGRATIONS declaration.

1999-01-27 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: edextra.scm (1.28), floppy.scm (1.25): Change to match new
	prompting code in Edwin 3.96.

1999-01-27 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.106), compile.scm (1.6), comred.scm
	(1.114), dired.scm (1.169), edwin.pkg (1.233), evlcom.scm (1.60),
	filcom.scm (1.199), kmacro.scm (1.42), print.scm (1.18), prompt.scm
	(1.175), replaz.scm (1.80), rmail.scm (1.60), snr.scm (1.51),
	tagutl.scm (1.57), make.scm (3.96): Revamp of prompting code.  New
	design supports keyword arguments to most prompting procedures, to
	support options in an extensible way.  The new keyword options are
	used to implement a general history mechanism, like that previously
	implemented by repeat-complex-command (which is now implemented
	using the new mechanism).
	
	This edit has made incompatible changes to the calling conventions
	of the following procedures:
	
	prompt-for-buffer-name prompt-for-expression prompt-for-pathname
	prompt-for-pathname* prompt-for-string prompt-for-completed-string
	prompt-for-string-table-name prompt-for-string-table-value

1999-01-27 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/macros.scm (1.64): Don't quote description strings. 
	Quoting precludes the use of arbitrary expressions to compute the
	documentation.

1999-01-16 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.25): Fix bug from last change: don't check
	file header when writing encrypted file, because the file might not
	exist.

1999-01-16 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.91): Fix bug from last change: don't check file
	header when writing encrypted file, because the file might not
	exist.

1999-01-14 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: pwedit.scm (1.3), loadef.scm (1.37): Fix compiler
	warnings.

1999-01-14 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.36), decls.scm (1.63), ed-ffi.scm (1.46),
	edwin.pkg (1.232): Implement M-x view-password-file to allow a
	password to be looked up in public without revealing other
	passwords in the file.

1999-01-14 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/pwedit.scm (1.2): Fix formatting error.

1999-01-14 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: pwparse.scm (1.1), pwedit.scm (1.1): Initial revision

1999-01-14 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.154): Fix binding: "home" key on PCs means
	beginning-of-line.

1999-01-14 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.24), unix.scm (1.90): Use new
	BLOWFISH-FILE? predicate to test .bf files to see if they are
	encoded.

1999-01-14 13:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.6): Add procedure BLOWFISH-FILE?.

1999-01-14 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.5): Use more specific condition for
	signalling "non-blowfish" files.  This facilitates catching this
	error.

1999-01-14 13:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.145), unix.scm (1.89), dosfile.scm (1.23):
	Fix PATHNAME-DEFAULT-MODE so that application of auto-mode-alist
	ignores any encoding suffixes.

1999-01-08 22:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/: winuser.scm (1.2), wingdi.scm (1.2), winnt.scm (1.2): Add
	copyright statement.

1999-01-03 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dstack.h (1.9), transact.c (1.3), wind.c (1.6),
	ptrvec.c (1.3), error.c (1.6): Fix mis-attributed copyright
	statement.  These files were written by me but attributed to FSF
	when they should have been attributed to MIT.

1999-01-03 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.110), edwin/make.scm (3.95),
	sos/load.scm (1.6): Fix version.

1999-01-03 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.161), runtime/version.scm (14.177),
	sf/make.scm (4.34), 6001/make.scm (15.30), cref/make.scm (1.18):
	Fix version.

1999-01-02 01:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/alpha/: assmd.scm (1.2), coerce.scm (1.3),
	compiler.cbf (1.3), compiler.pkg (1.13), compiler.sf (1.6),
	dassm1.scm (1.2), dassm2.scm (1.2), dassm3.scm (1.2), decls.scm
	(1.6), inerly.scm (1.2), insmac.scm (1.2), instr1.scm (1.4),
	instr2.scm (1.2), instr3.scm (1.2), lapgen.scm (1.6), lapopt.scm
	(1.2), machin.scm (1.8), make.scm (1.4), rgspcm.scm (1.2),
	rules1.scm (1.3), rules2.scm (1.2), rules3.scm (1.7), rules4.scm
	(1.3), rulfix.scm (1.4), rulflo.scm (1.3), rulrew.scm (1.3): Change
	copyright to GPL.

1999-01-02 01:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.11): Change names of top-level /scheme
	directories.

1999-01-02 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.16), runtime/sdata.scm (14.3),
	runtime/sfile.scm (14.20), runtime/site.scm.dos (1.14),
	runtime/site.scm.unix (1.15), runtime/socket.scm (1.13),
	runtime/starbase.scm (1.13), runtime/stream.scm (14.12),
	runtime/string.scm (14.17), runtime/strnin.scm (14.5),
	runtime/strott.scm (14.5), runtime/strout.scm (14.9),
	runtime/symbol.scm (1.4), runtime/syntab.scm (14.5),
	runtime/syntax.scm (14.31), runtime/sysclk.scm (14.4),
	runtime/sysmac.scm (14.3), runtime/system.scm (14.13),
	runtime/thread.scm (1.24), runtime/tscript.scm (1.2),
	runtime/ttyio.scm (1.6), runtime/tvector.scm (1.2),
	runtime/udata.scm (14.19), runtime/uerror.scm (14.45),
	runtime/unpars.scm (14.46), runtime/unsyn.scm (14.20),
	runtime/unxdir.scm (14.11), runtime/unxprm.scm (1.51),
	runtime/unxpth.scm (14.25), runtime/uproc.scm (1.11),
	runtime/urtrap.scm (14.5), runtime/usrint.scm (1.16),
	runtime/utabs.scm (14.13), runtime/vector.scm (14.12),
	runtime/version.scm (14.176), runtime/where.scm (14.11),
	runtime/wind.scm (14.6), runtime/wrkdir.scm (14.8),
	runtime/wttree.scm (1.10), runtime/x11graph.scm (1.48),
	runtime/xeval.scm (1.6), runtime/ystep.scm (1.3), sf/butils.scm
	(4.10), sf/cgen.scm (4.4), sf/chtype.scm (4.3), sf/copy.scm (4.5),
	sf/emodel.scm (4.4), sf/free.scm (4.3), sf/gimprt.scm (4.2),
	sf/lsets.scm (4.3), sf/object.scm (4.9), sf/pthmap.scm (4.5),
	sf/reduct.scm (4.10), sf/sf.cbf (1.3), sf/sf.sf (4.8), sf/table.scm
	(4.5), sf/tables.scm (4.3), sf/xform.scm (4.9), sicp/compat.scm
	(1.8), sicp/genenv.scm (1.3), sicp/graphics.scm (1.5),
	sicp/sbuild.scm (1.5), sicp/stream.scm (1.2), sicp/strmac.scm
	(1.2), sicp/studen.scm (1.10), sos/class.scm (1.9), sos/compile.scm
	(1.3), sos/ed-ffi.scm (1.2), sos/instance.scm (1.8), sos/load.scm
	(1.5), sos/macros.scm (1.9), sos/method.scm (1.11),
	sos/microbench.scm (1.2), sos/printer.scm (1.2), sos/slot.scm
	(1.7), sos/sos.pkg (1.8), swat/scheme/swat.sf (1.3),
	wabbit/load.scm (1.3), wabbit/wabbit.cbf (1.2), wabbit/wabbit.pkg
	(1.2), wabbit/wabbit.scm (1.2), wabbit/wabbit.sf (1.3),
	win32/clipbrd.scm (1.5), win32/dib.scm (1.3), win32/ffimacro.scm
	(1.3), win32/graphics.scm (1.16), win32/make.scm (1.6),
	win32/module.scm (1.4), win32/protect.scm (1.3), win32/wf_user.scm
	(1.10), win32/win32.cbf (1.3), win32/win32.pkg (1.11),
	win32/win32.sf (1.4), win32/win_ffi.scm (1.6), win32/wt_user.scm
	(1.4), win32/dibutils/dibutils.c (1.4), win32/dibutils/dibutils.def
	(1.3), win32/dibutils/dibutils.h (1.4), win32/dibutils/makefile.msc
	(1.3), win32/dibutils/makefile.wcc (1.3): Change copyright to GPL.

1999-01-02 01:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/anfile.scm (1.6), cref/conpkg.scm (1.6), cref/cref.cbf
	(1.3), cref/cref.pkg (1.7), cref/cref.sf (1.10), cref/forpkg.scm
	(1.9), cref/make.scm (1.17), cref/mset.scm (1.2), cref/object.scm
	(1.10), cref/redpkg.scm (1.11), cref/toplev.scm (1.12),
	cref/triv.con (1.5), cref/triv.ldr (1.4), edwin/ansi.scm (1.8),
	edwin/argred.scm (1.33), edwin/artdebug.scm (1.26),
	edwin/autold.scm (1.54), edwin/autosv.scm (1.33), edwin/basic.scm
	(1.131), edwin/bios.scm (1.5), edwin/bufcom.scm (1.105),
	edwin/buffer.scm (1.171), edwin/buffrm.scm (1.53), edwin/bufinp.scm
	(1.5), edwin/bufmnu.scm (1.126), edwin/bufout.scm (1.11),
	edwin/bufset.scm (1.12), edwin/bufwfs.scm (1.20), edwin/bufwin.scm
	(1.306), edwin/bufwiu.scm (1.31), edwin/bufwmc.scm (1.18),
	edwin/c-mode.scm (1.55), edwin/calias.scm (1.18), edwin/cinden.scm
	(1.19), edwin/class.scm (1.72), edwin/clscon.scm (1.7),
	edwin/clsmac.scm (1.3), edwin/comatch.scm (1.4), edwin/comhst.scm
	(1.6), edwin/comint.scm (1.28), edwin/comman.scm (1.80),
	edwin/compile.scm (1.5), edwin/comred.scm (1.113), edwin/comtab.scm
	(1.69), edwin/comwin.scm (1.144), edwin/curren.scm (1.123),
	edwin/dabbrev.scm (1.4), edwin/debug.scm (1.44), edwin/debuge.scm
	(1.53), edwin/decls.scm (1.62), edwin/dired.scm (1.168),
	edwin/diros2.scm (1.3), edwin/dirunx.scm (1.11), edwin/dirw32.scm
	(1.3), edwin/display.scm (1.7), edwin/docstr.scm (1.3),
	edwin/dos.scm (1.48), edwin/doscom.scm (1.3), edwin/dosfile.scm
	(1.22), edwin/dosproc.scm (1.4), edwin/dosshell.scm (1.4),
	edwin/ed-ffi.scm (1.45), edwin/editor.scm (1.244), edwin/edtfrm.scm
	(1.90), edwin/edtstr.scm (1.23), edwin/edwin.cbf (1.4),
	edwin/edwin.ldr (1.63), edwin/edwin.pkg (1.231), edwin/edwin.sf
	(1.20), edwin/evlcom.scm (1.59), edwin/eystep.scm (1.6),
	edwin/filcom.scm (1.198), edwin/fileio.scm (1.144), edwin/fill.scm
	(1.60), edwin/grpops.scm (1.24), edwin/hlpcom.scm (1.109),
	edwin/image.scm (1.134), edwin/info.scm (1.133), edwin/input.scm
	(1.100), edwin/intmod.scm (1.95), edwin/iserch.scm (1.21),
	edwin/javamode.scm (1.3), edwin/key-w32.scm (1.3),
	edwin/key-x11.scm (1.5), edwin/keymap.scm (1.12),
	edwin/keyparse.scm (1.3), edwin/kilcom.scm (1.71), edwin/kmacro.scm
	(1.41), edwin/lincom.scm (1.123), edwin/linden.scm (1.126),
	edwin/loadef.scm (1.35), edwin/lspcom.scm (1.158), edwin/macros.scm
	(1.63), edwin/make.scm (3.94), edwin/malias.scm (1.4),
	edwin/manual.scm (1.15), edwin/midas.scm (1.18), edwin/modefs.scm
	(1.153), edwin/modes.scm (1.28), edwin/modlin.scm (1.20),
	edwin/modwin.scm (1.40), edwin/motcom.scm (1.47), edwin/motion.scm
	(1.88), edwin/mousecom.scm (1.2), edwin/nntp.scm (1.22),
	edwin/notify.scm (1.18), edwin/nvector.scm (1.8), edwin/occur.scm
	(1.4), edwin/os2.scm (1.43), edwin/os2com.scm (1.5),
	edwin/os2term.scm (1.21), edwin/outline.scm (1.8), edwin/pasmod.scm
	(1.47), edwin/paths.scm (1.14), edwin/print.scm (1.17),
	edwin/process.scm (1.54), edwin/prompt.scm (1.174),
	edwin/rcsparse.scm (1.4), edwin/reccom.scm (1.14), edwin/regcom.scm
	(1.22), edwin/regexp.scm (1.71), edwin/regops.scm (1.87),
	edwin/rename.scm (1.7), edwin/replaz.scm (1.79), edwin/ring.scm
	(1.11), edwin/rmail.scm (1.59), edwin/rmailsrt.scm (1.10),
	edwin/rmailsum.scm (1.34), edwin/schmod.scm (1.44),
	edwin/scrcom.scm (1.6), edwin/screen.scm (1.116), edwin/search.scm
	(1.150), edwin/sendmail.scm (1.43), edwin/sercom.scm (1.64),
	edwin/shell.scm (1.19), edwin/simple.scm (1.48), edwin/snr.scm
	(1.50), edwin/sort.scm (1.7), edwin/strpad.scm (1.8),
	edwin/strtab.scm (1.46), edwin/struct.scm (1.91), edwin/syntax.scm
	(1.83), edwin/tagutl.scm (1.56), edwin/techinfo.scm (1.5),
	edwin/telnet.scm (1.14), edwin/termcap.scm (1.7), edwin/texcom.scm
	(1.39), edwin/things.scm (1.85), edwin/tparse.scm (1.71),
	edwin/tterm.scm (1.28), edwin/tximod.scm (1.21), edwin/txtprp.scm
	(1.17), edwin/undo.scm (1.58), edwin/unix.scm (1.88),
	edwin/utils.scm (1.45), edwin/utlwin.scm (1.59), edwin/vc.scm
	(1.30), edwin/verilog.scm (1.5), edwin/vhdl.scm (1.5),
	edwin/webster.scm (1.3), edwin/win32.scm (1.9), edwin/win32com.scm
	(1.8), edwin/wincom.scm (1.122), edwin/window.scm (1.159),
	edwin/winout.scm (1.10), edwin/winren.scm (1.5), edwin/xcom.scm
	(1.16), edwin/xform.scm (1.9), edwin/xmodef.scm (1.3),
	edwin/xterm.scm (1.56), microcode/array.c (9.46), microcode/array.h
	(9.36), microcode/artutl.c (1.16), microcode/avltree.c (1.4),
	microcode/avltree.h (1.2), microcode/bchdmp.c (9.83),
	microcode/bchdrn.c (1.7), microcode/bchdrn.h (1.9),
	microcode/bchgcc.h (9.59), microcode/bchgcl.c (9.50),
	microcode/bchmmg.c (9.93), microcode/bchpur.c (9.67),
	microcode/bchutl.c (1.8), microcode/bignmint.h (1.6),
	microcode/bignum.c (9.47), microcode/bignum.h (9.31),
	microcode/bigprm.c (1.6), microcode/bitstr.c (9.61),
	microcode/bitstr.h (1.9), microcode/bkpt.c (9.30), microcode/bkpt.h
	(9.32), microcode/bltdef.h (1.4), microcode/boot.c (9.100),
	microcode/breakup.c (9.25), microcode/char.c (9.33),
	microcode/cmpgc.h (1.30), microcode/cmpint.h (10.6),
	microcode/cmptype.h (1.2), microcode/comlin.c (1.9),
	microcode/comlin.h (1.7), microcode/compinit.c (1.4),
	microcode/comutl.c (1.31), microcode/config.h (9.100),
	microcode/copyrigh.c (1.3), microcode/critsec.h (1.4),
	microcode/daemon.c (9.31), microcode/debug.c (9.50),
	microcode/default.h (9.43), microcode/dfloat.c (1.6),
	microcode/dmpwrld.c (9.39), microcode/dosasutl.asm (1.4),
	microcode/dosconio.c (1.13), microcode/dosenv.c (1.10),
	microcode/dosexcp.c (1.6), microcode/dosexcp.h (1.4),
	microcode/dosfg.c (1.4), microcode/dosfile.c (1.4),
	microcode/dosfs.c (1.6), microcode/dosi10.asm (1.3),
	microcode/dosinsn.h (1.3), microcode/dosint10.c (1.9),
	microcode/dosint10.h (1.3), microcode/dosio.c (1.9),
	microcode/dosio.h (1.5), microcode/doskbd.c (1.13),
	microcode/doskbd.h (1.3), microcode/doskbutl.asm (1.7),
	microcode/dosscan.h (1.5), microcode/dosselec.h (1.3),
	microcode/dossig.c (1.17), microcode/dossys.c (1.5),
	microcode/dossys.h (1.3), microcode/dosterm.h (1.3),
	microcode/dostop.c (1.12), microcode/dostop.h (1.3),
	microcode/dostrap.c (1.7), microcode/dostrap.h (1.4),
	microcode/dostterm.c (1.3), microcode/dostty.c (1.4),
	microcode/dosutil.c (1.3), microcode/dosutil.h (1.3),
	microcode/dosx32.c (1.7), microcode/dosxcutl.asm (1.8),
	microcode/dump.c (9.40), microcode/edwin.h (1.9),
	microcode/errors.h (9.42), microcode/extern.c (9.37),
	microcode/extern.h (9.56), microcode/fasdump.c (9.63),
	microcode/fasload.c (9.86), microcode/fft.c (9.33),
	microcode/fhooks.c (9.34), microcode/findprim.c (9.52),
	microcode/fixnum.c (9.44), microcode/flonum.c (9.43),
	microcode/foreign.c (1.2), microcode/foreign.h (1.2),
	microcode/future.c (9.29), microcode/futures.h (9.29),
	microcode/gc.h (9.34), microcode/gccode.h (9.56),
	microcode/gcloop.c (9.46), microcode/generic.c (9.39),
	microcode/gpio.c (1.11), microcode/history.h (9.29),
	microcode/hooks.c (9.58), microcode/hppacach.c (1.12),
	microcode/hppacach.h (1.5), microcode/hppanwca.c (1.4),
	microcode/hunk.c (9.29), microcode/image.c (9.34),
	microcode/image.h (9.25), microcode/intercom.c (9.31),
	microcode/intern.c (9.56), microcode/interp.h (9.41),
	microcode/intext.c (1.5), microcode/intext.h (1.5),
	microcode/intprm.c (1.9), microcode/intrpt.h (1.20),
	microcode/list.c (9.32), microcode/load.c (9.39), microcode/locks.h
	(9.26), microcode/lookprm.c (1.11), microcode/memmag.c (9.65),
	microcode/memmag.h (1.7), microcode/missing.c (9.32),
	microcode/msdos.h (1.7), microcode/nt.h (1.8), microcode/ntapi.h
	(1.9), microcode/ntasutl.asm (1.6), microcode/ntenv.c (1.17),
	microcode/ntfile.c (1.13), microcode/ntfs.c (1.24),
	microcode/ntfs.h (1.4), microcode/ntgui.c (1.25), microcode/ntgui.h
	(1.8), microcode/ntio.c (1.22), microcode/ntio.h (1.11),
	microcode/ntproc.c (1.8), microcode/ntproc.h (1.2),
	microcode/ntscmlib.h (1.9), microcode/ntscreen.c (1.36),
	microcode/ntscreen.h (1.17), microcode/ntsig.c (1.21),
	microcode/ntsock.c (1.5), microcode/ntsys.c (1.9),
	microcode/ntsys.h (1.8), microcode/ntterm.h (1.4),
	microcode/nttop.c (1.29), microcode/nttop.h (1.4),
	microcode/nttrap.c (1.17), microcode/nttrap.h (1.5),
	microcode/nttterm.c (1.3), microcode/nttty.c (1.8),
	microcode/option.c (1.48), microcode/option.h (1.12),
	microcode/os.h (1.6), microcode/os2.c (1.8), microcode/os2.h (1.6),
	microcode/os2api.h (1.11), microcode/os2conio.c (1.10),
	microcode/os2cthrd.c (1.10), microcode/os2cthrd.h (1.7),
	microcode/os2ctty.c (1.4), microcode/os2ctty.h (1.2),
	microcode/os2env.c (1.11), microcode/os2file.c (1.3),
	microcode/os2fs.c (1.10), microcode/os2io.c (1.8),
	microcode/os2io.h (1.4), microcode/os2msg.c (1.13),
	microcode/os2msg.h (1.15), microcode/os2pipe.c (1.8),
	microcode/os2pm.c (1.32), microcode/os2pm.h (1.13),
	microcode/os2pm.scm (1.8), microcode/os2pmcon.c (1.24),
	microcode/os2pmcon.h (1.4), microcode/os2pmcon.rc (1.5),
	microcode/os2proc.c (1.6), microcode/os2proc.h (1.2),
	microcode/os2sock.c (1.9), microcode/os2term.c (1.3),
	microcode/os2thrd.c (1.6), microcode/os2thrd.h (1.4),
	microcode/os2top.c (1.19), microcode/os2tty.c (1.2),
	microcode/os2xcpt.c (1.7), microcode/oscond.h (1.26),
	microcode/osctty.h (1.4), microcode/osenv.h (1.8),
	microcode/osfile.h (1.3), microcode/osfs.h (1.7), microcode/osio.h
	(1.14), microcode/osproc.h (1.10), microcode/ospty.h (1.4),
	microcode/osscheme.c (1.10), microcode/osscheme.h (1.10),
	microcode/ossig.h (1.4), microcode/osterm.h (1.11),
	microcode/ostop.h (1.5), microcode/ostty.c (1.4), microcode/ostty.h
	(1.5), microcode/outf.c (1.11), microcode/outf.h (1.4),
	microcode/posixtyp.h (1.16), microcode/prbfish.c (1.4),
	microcode/prdosenv.c (1.11), microcode/prdosfs.c (1.5),
	microcode/prename.h (1.9), microcode/prgdbm.c (1.3),
	microcode/prim.c (9.39), microcode/prim.h (9.45), microcode/prims.h
	(9.46), microcode/primutl.c (9.71), microcode/prmcon.c (1.3),
	microcode/prmcon.h (1.3), microcode/prmd5.c (1.4),
	microcode/prntenv.c (1.8), microcode/prntfs.c (1.15),
	microcode/prntio.c (1.10), microcode/pros2fs.c (1.17),
	microcode/pros2io.c (1.8), microcode/pros2pm.c (1.21),
	microcode/prosenv.c (1.15), microcode/prosfile.c (1.9),
	microcode/prosfs.c (1.13), microcode/prosio.c (1.17),
	microcode/prosproc.c (1.18), microcode/prospty.c (1.4),
	microcode/prosterm.c (1.16), microcode/prostty.c (1.7),
	microcode/pruxdld.c (1.12), microcode/pruxenv.c (1.18),
	microcode/pruxfs.c (9.55), microcode/pruxio.c (1.7),
	microcode/pruxsock.c (1.16), microcode/purify.c (9.58),
	microcode/purutl.c (9.49), microcode/regex.c (1.19),
	microcode/regex.h (1.7), microcode/rgxprim.c (1.13),
	microcode/sample.c (9.26), microcode/scheme.h (9.38),
	microcode/scode.h (9.26), microcode/sdata.h (9.34),
	microcode/sgraph.h (1.7), microcode/sgraph_a.c (1.16),
	microcode/sgx.c (1.9), microcode/sgx11.c (1.4), microcode/stack.h
	(9.38), microcode/starbase.c (1.7), microcode/starbasx.c (1.6),
	microcode/step.c (9.34), microcode/storage.c (9.56),
	microcode/string.c (9.38), microcode/syntax.c (1.24),
	microcode/syntax.h (1.10), microcode/syscall.h (1.11),
	microcode/sysprim.c (9.46), microcode/term.c (1.14),
	microcode/tterm.c (1.6), microcode/usrdef.h (9.43),
	microcode/utils.c (9.74), microcode/ux.c (1.17), microcode/ux.h
	(1.71), microcode/uxctty.c (1.13), microcode/uxenv.c (1.17),
	microcode/uxfile.c (1.9), microcode/uxfs.c (1.17), microcode/uxio.c
	(1.43), microcode/uxio.h (1.5), microcode/uxproc.c (1.23),
	microcode/uxproc.h (1.6), microcode/uxselect.h (1.6),
	microcode/uxsig.c (1.33), microcode/uxsig.h (1.5),
	microcode/uxsock.c (1.18), microcode/uxsock.h (1.8),
	microcode/uxterm.c (1.26), microcode/uxterm.h (1.5),
	microcode/uxtop.c (1.21), microcode/uxtop.h (1.3),
	microcode/uxtrap.c (1.28), microcode/uxtrap.h (1.28),
	microcode/uxtty.c (1.10), microcode/uxutil.c (1.6),
	microcode/uxutil.h (1.3), microcode/uxyp.c (1.3),
	microcode/vector.c (9.39), microcode/wabbit.c (1.7),
	microcode/winder.h (9.26), microcode/wsize.c (9.34),
	microcode/x11.h (1.16), microcode/x11base.c (1.73),
	microcode/x11color.c (1.5), microcode/x11graph.c (1.41),
	microcode/x11term.c (1.25), microcode/xdebug.c (9.33),
	microcode/zones.h (9.26), microcode/cmpauxmd/asmcvt.c (1.2),
	microcode/cmpauxmd/c.c (1.12), microcode/cmpauxmd/i386.m4 (1.49),
	microcode/cmpauxmd/mc68k.m4 (1.26), microcode/cmpauxmd/mips.m4
	(1.15), microcode/cmpauxmd/vax.m4 (1.3), microcode/cmpintmd/c.h
	(1.7), microcode/cmpintmd/i386.h (1.31), microcode/cmpintmd/mc68k.h
	(1.36), microcode/cmpintmd/mips.h (1.23), microcode/cmpintmd/vax.h
	(1.9), microcode/ntutl/bch-p-nt.lst (1.6), microcode/ntutl/makefile
	(1.23), microcode/ntutl/makefile.wcc (1.12),
	microcode/ntutl/scheme16.c (1.11), microcode/ntutl/scheme31.c
	(1.10), microcode/ntutl/scheme32.c (1.17),
	microcode/ntutl/scm-p-nt.lst (1.6), microcode/os2utl/makefile
	(1.14), microcode/os2utl/makefile.cmn (1.11),
	microcode/os2utl/makefile.emx (1.8), microcode/os2utl/makefile.gcc
	(1.6), microcode/os2utl/makefile.vac (1.6),
	microcode/os2utl/makefile.wcc (1.7), pcsample/load.scm (1.5),
	pcsample/pcs.cbf (1.3), pcsample/pcs.pkg (1.3), pcsample/pcs.sf
	(1.2), pcsample/pcsample.c (1.6), pcsample/pcsample.scm (1.3),
	pcsample/pcsboot.scm (1.2), pcsample/pcscobl.c (1.2),
	pcsample/pcscobl.scm (1.2), pcsample/pcsdisp.scm (1.2),
	pcsample/pcsdld.c (1.5), pcsample/pcsintrp.scm (1.2),
	pcsample/pcsiproc.c (1.2), pcsample/pcsiproc.scm (1.2),
	pcsample/pribinut.scm (1.2), rcs/format.scm (1.3), rcs/logmer.scm
	(1.16), rcs/make.scm (1.4), rcs/mklogs.scm (1.10), rcs/nparse.scm
	(1.2), rcs/object.scm (1.3), rcs/rcs.pkg (1.7), rcs/rcs.sf (1.8),
	runtime/advice.scm (14.15), runtime/apply.scm (1.2),
	runtime/apropos.scm (1.3), runtime/arith.scm (1.45),
	runtime/bitstr.scm (14.3), runtime/blowfish.scm (1.4),
	runtime/boole.scm (14.3), runtime/boot.scm (14.12),
	runtime/char.scm (14.10), runtime/chrset.scm (14.8),
	runtime/codwlk.scm (14.3), runtime/contin.scm (14.8),
	runtime/cpoint.scm (14.5), runtime/cpress.scm (1.10),
	runtime/datime.scm (14.17), runtime/dbgcmd.scm (14.16),
	runtime/debug.scm (14.39), runtime/defstr.scm (14.32),
	runtime/dosdir.scm (1.7), runtime/dosprm.scm (1.41),
	runtime/dosproc.scm (1.2), runtime/dospth.scm (1.39),
	runtime/dragon4.scm (1.14), runtime/ed-ffi.scm (1.18),
	runtime/emacs.scm (14.23), runtime/equals.scm (14.8),
	runtime/error.scm (14.49), runtime/events.scm (14.4),
	runtime/fileio.scm (1.11), runtime/fixart.scm (1.3),
	runtime/format.scm (14.6), runtime/gc.scm (14.16),
	runtime/gcdemn.scm (14.8), runtime/gcnote.scm (14.12),
	runtime/gcstat.scm (14.6), runtime/gdatab.scm (14.6),
	runtime/gdbm.scm (1.2), runtime/gencache.scm (1.2),
	runtime/geneqht.scm (1.2), runtime/generic.scm (1.2),
	runtime/genio.scm (1.8), runtime/genmult.scm (1.2),
	runtime/gensym.scm (14.5), runtime/gentag.scm (1.2),
	runtime/graphics.scm (1.17), runtime/hash.scm (14.6),
	runtime/hashtb.scm (1.23), runtime/histry.scm (14.6),
	runtime/illdef.scm (1.4), runtime/input.scm (14.19),
	runtime/intrpt.scm (14.22), runtime/io.scm (14.54),
	runtime/krypt.scm (1.8), runtime/kryptdum.scm (1.2),
	runtime/lambda.scm (14.14), runtime/lambdx.scm (14.8),
	runtime/list.scm (14.23), runtime/macros.scm (1.3),
	runtime/msort.scm (14.6), runtime/ntdir.scm (1.2),
	runtime/ntprm.scm (1.25), runtime/numint.scm (1.6),
	runtime/numpar.scm (14.17), runtime/option.scm (14.36),
	runtime/optiondb.scm (1.5), runtime/ordvec.scm (1.2),
	runtime/os2ctype.scm (1.3), runtime/os2dir.scm (1.5),
	runtime/os2graph.scm (1.14), runtime/os2prm.scm (1.38),
	runtime/os2winp.scm (1.15), runtime/output.scm (14.17),
	runtime/packag.scm (14.28), runtime/parse.scm (14.30),
	runtime/partab.scm (14.5), runtime/pathnm.scm (14.32),
	runtime/poplat.scm (14.4), runtime/port.scm (1.11), runtime/pp.scm
	(14.39), runtime/process.scm (1.22), runtime/prop1d.scm (14.6),
	runtime/prop2d.scm (14.3), runtime/qsort.scm (14.4),
	runtime/queue.scm (14.4), runtime/random.scm (14.18),
	runtime/rbtree.scm (1.6), runtime/record.scm (1.28),
	runtime/recslot.scm (1.4), runtime/rep.scm (14.52),
	runtime/rgxcmp.scm (1.109), runtime/runtime.sf (14.13),
	runtime/savres.scm (14.30), runtime/scan.scm (14.6),
	runtime/scode.scm (14.16): Change copyright to GPL.

1999-01-02 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.cbf (1.7), 6001/6001.pkg (1.11), 6001/6001.sf (1.10),
	6001/arith.scm (1.6), 6001/edextra.scm (1.27), 6001/floppy.scm
	(1.24), 6001/make.scm (15.29), 6001/nodefs.scm (1.11),
	6001/pic-imag.scm (1.10), 6001/pic-ops.scm (1.5), 6001/pic-read.scm
	(1.5), 6001/pic-reco.scm (1.7), 6001/picture.scm (1.28),
	compiler/back/asmmac.scm (1.8), compiler/back/asutl.scm (1.3),
	compiler/back/bittop.scm (1.22), compiler/back/bitutl.scm (1.10),
	compiler/back/insseq.scm (4.4), compiler/back/lapgn1.scm (4.18),
	compiler/back/lapgn2.scm (1.21), compiler/back/lapgn3.scm (4.12),
	compiler/back/linear.scm (4.17), compiler/back/mermap.scm (1.5),
	compiler/back/regmap.scm (4.14), compiler/back/syerly.scm (1.11),
	compiler/back/symtab.scm (1.47), compiler/back/syntax.scm (1.27),
	compiler/base/asstop.scm (1.11), compiler/base/blocks.scm (4.14),
	compiler/base/cfg1.scm (4.5), compiler/base/cfg2.scm (4.4),
	compiler/base/cfg3.scm (4.5), compiler/base/constr.scm (1.3),
	compiler/base/contin.scm (4.9), compiler/base/crsend.scm (1.10),
	compiler/base/crstop.scm (1.13), compiler/base/ctypes.scm (4.16),
	compiler/base/debug.scm (4.14), compiler/base/enumer.scm (4.4),
	compiler/base/infnew.scm (4.12), compiler/base/lvalue.scm (4.21),
	compiler/base/macros.scm (4.16), compiler/base/make.scm (4.109),
	compiler/base/mvalue.scm (3.1), compiler/base/object.scm (4.9),
	compiler/base/pmerly.scm (1.9), compiler/base/pmlook.scm (1.9),
	compiler/base/pmpars.scm (1.4), compiler/base/proced.scm (4.20),
	compiler/base/refctx.scm (1.3), compiler/base/rvalue.scm (4.7),
	compiler/base/scode.scm (4.10), compiler/base/sets.scm (4.2),
	compiler/base/subprb.scm (4.8), compiler/base/switch.scm (4.25),
	compiler/base/toplev.scm (4.55), compiler/base/utils.scm (4.20),
	compiler/etc/asm.scm (1.3), compiler/etc/comcmp.scm (1.5),
	compiler/etc/comfiles.scm (1.6), compiler/etc/disload.scm (1.8),
	compiler/etc/stackp.scm (1.7), compiler/etc/xcbfdir.scm (1.9),
	compiler/fggen/canon.scm (1.16), compiler/fggen/declar.scm (1.6),
	compiler/fggen/fggen.scm (4.32), compiler/fgopt/blktyp.scm (4.16),
	compiler/fgopt/closan.scm (4.18), compiler/fgopt/conect.scm (4.5),
	compiler/fgopt/contan.scm (4.10), compiler/fgopt/delint.scm (1.4),
	compiler/fgopt/desenv.scm (4.4), compiler/fgopt/envopt.scm (1.8),
	compiler/fgopt/folcon.scm (4.9), compiler/fgopt/offset.scm (4.9),
	compiler/fgopt/operan.scm (4.8), compiler/fgopt/order.scm (4.16),
	compiler/fgopt/outer.scm (4.6), compiler/fgopt/param.scm (1.4),
	compiler/fgopt/reord.scm (1.2), compiler/fgopt/reteqv.scm (1.2),
	compiler/fgopt/reuse.scm (1.8), compiler/fgopt/sideff.scm (1.9),
	compiler/fgopt/simapp.scm (4.9), compiler/fgopt/simple.scm (4.7),
	compiler/fgopt/subfre.scm (1.8), compiler/fgopt/varind.scm (1.5),
	compiler/machines/C/compiler.cbf (1.3),
	compiler/machines/C/compiler.pkg (1.10),
	compiler/machines/C/compiler.sf (1.6), compiler/machines/C/cout.scm
	(1.21), compiler/machines/C/ctop.scm (1.13),
	compiler/machines/C/cutl.scm (1.2), compiler/machines/C/decls.scm
	(1.4), compiler/machines/C/lapgen.scm (1.12),
	compiler/machines/C/machin.scm (1.8), compiler/machines/C/make.scm
	(1.3), compiler/machines/C/rgspcm.scm (1.3),
	compiler/machines/C/rules1.scm (1.8),
	compiler/machines/C/rules2.scm (1.3),
	compiler/machines/C/rules3.scm (1.9),
	compiler/machines/C/rules4.scm (1.2),
	compiler/machines/C/rulfix.scm (1.3),
	compiler/machines/C/rulflo.scm (1.5),
	compiler/machines/C/rulrew.scm (1.4),
	compiler/machines/bobcat/assmd.scm (1.37),
	compiler/machines/bobcat/coerce.scm (1.11),
	compiler/machines/bobcat/compiler.cbf (1.3),
	compiler/machines/bobcat/compiler.pkg (1.50),
	compiler/machines/bobcat/compiler.sf (1.18),
	compiler/machines/bobcat/dassm1.scm (4.19),
	compiler/machines/bobcat/dassm2.scm (4.23),
	compiler/machines/bobcat/dassm3.scm (4.9),
	compiler/machines/bobcat/decls.scm (4.37),
	compiler/machines/bobcat/flinstr1.scm (1.2),
	compiler/machines/bobcat/flinstr2.scm (1.2),
	compiler/machines/bobcat/inerly.scm (1.8),
	compiler/machines/bobcat/insmac.scm (1.127),
	compiler/machines/bobcat/instr1.scm (1.68),
	compiler/machines/bobcat/instr2.scm (1.19),
	compiler/machines/bobcat/instr3.scm (1.18),
	compiler/machines/bobcat/instr4.scm (1.4),
	compiler/machines/bobcat/insutl.scm (1.9),
	compiler/machines/bobcat/lapgen.scm (4.51),
	compiler/machines/bobcat/lapopt.scm (1.2),
	compiler/machines/bobcat/machin.scm (4.32),
	compiler/machines/bobcat/make.scm-68020 (4.89),
	compiler/machines/bobcat/make.scm-68040 (4.90),
	compiler/machines/bobcat/mc68ktgl.scm (1.3),
	compiler/machines/bobcat/rgspcm.scm (4.3),
	compiler/machines/bobcat/rules1.scm (4.39),
	compiler/machines/bobcat/rules2.scm (4.15),
	compiler/machines/bobcat/rules3.scm (4.41),
	compiler/machines/bobcat/rules4.scm (4.15),
	compiler/machines/bobcat/rulrew.scm (1.7),
	compiler/machines/i386/assmd.scm (1.3),
	compiler/machines/i386/coerce.scm (1.3),
	compiler/machines/i386/compiler.cbf (1.4),
	compiler/machines/i386/compiler.pkg (1.24),
	compiler/machines/i386/compiler.sf (1.9),
	compiler/machines/i386/dassm1.scm (1.9),
	compiler/machines/i386/dassm2.scm (1.9),
	compiler/machines/i386/dassm3.scm (1.6),
	compiler/machines/i386/decls.scm (1.8),
	compiler/machines/i386/inerly.scm (1.3),
	compiler/machines/i386/insmac.scm (1.11),
	compiler/machines/i386/instr1.scm (1.11),
	compiler/machines/i386/instr2.scm (1.6),
	compiler/machines/i386/instrf.scm (1.14),
	compiler/machines/i386/insutl.scm (1.11),
	compiler/machines/i386/lapgen.scm (1.27),
	compiler/machines/i386/lapopt.scm (1.6),
	compiler/machines/i386/machin.scm (1.19),
	compiler/machines/i386/make.scm (1.6),
	compiler/machines/i386/pc-make.scm (1.2),
	compiler/machines/i386/rgspcm.scm (1.4),
	compiler/machines/i386/rules1.scm (1.19),
	compiler/machines/i386/rules2.scm (1.9),
	compiler/machines/i386/rules3.scm (1.34),
	compiler/machines/i386/rules4.scm (1.8),
	compiler/machines/i386/rulfix.scm (1.31),
	compiler/machines/i386/rulflo.scm (1.22),
	compiler/machines/i386/rulrew.scm (1.14),
	compiler/machines/mips/assmd.scm (1.3),
	compiler/machines/mips/coerce.scm (1.2),
	compiler/machines/mips/compiler.cbf (1.3),
	compiler/machines/mips/compiler.pkg (1.20),
	compiler/machines/mips/compiler.sf-big (1.8),
	compiler/machines/mips/compiler.sf-little (1.8),
	compiler/machines/mips/dassm1.scm (1.4),
	compiler/machines/mips/dassm2.scm (1.5),
	compiler/machines/mips/dassm3.scm (1.4),
	compiler/machines/mips/decls.scm (1.10),
	compiler/machines/mips/inerly.scm (1.2),
	compiler/machines/mips/insmac.scm (1.3),
	compiler/machines/mips/instr1.scm (1.7),
	compiler/machines/mips/instr2a.scm (1.5),
	compiler/machines/mips/instr2b.scm (1.4),
	compiler/machines/mips/instr3.scm (1.3),
	compiler/machines/mips/lapgen.scm (1.16),
	compiler/machines/mips/lapopt.scm (1.2),
	compiler/machines/mips/machin.scm (1.15),
	compiler/machines/mips/make.scm-big (4.89),
	compiler/machines/mips/make.scm-little (4.89),
	compiler/machines/mips/mips.scm (1.2),
	compiler/machines/mips/rgspcm.scm (1.2),
	compiler/machines/mips/rules1.scm (1.7),
	compiler/machines/mips/rules2.scm (1.3),
	compiler/machines/mips/rules3.scm (1.18),
	compiler/machines/mips/rules4.scm (1.4),
	compiler/machines/mips/rulfix.scm (1.11),
	compiler/machines/mips/rulflo.scm (1.8),
	compiler/machines/mips/rulrew.scm (1.7),
	compiler/machines/sparc/assmd.scm (1.2),
	compiler/machines/sparc/cf.h-sparc (1.2),
	compiler/machines/sparc/cmpaux-sparc.m4 (1.2),
	compiler/machines/sparc/cmpint-sparc.h (1.2),
	compiler/machines/sparc/coerce.scm (1.2),
	compiler/machines/sparc/decls.scm (1.4),
	compiler/machines/sparc/inerly.scm (1.2),
	compiler/machines/sparc/insmac.scm (1.2),
	compiler/machines/sparc/instr1.scm (1.2),
	compiler/machines/sparc/instr2a.scm (1.2),
	compiler/machines/sparc/instr2b.scm (1.2),
	compiler/machines/sparc/instr3.scm (1.2),
	compiler/machines/sparc/lapgen.scm (1.3),
	compiler/machines/sparc/lapopt.scm (1.2),
	compiler/machines/sparc/machin.scm (1.3),
	compiler/machines/sparc/make.scm (1.3),
	compiler/machines/sparc/rgspcm.scm (1.2),
	compiler/machines/sparc/rules1.scm (1.2),
	compiler/machines/sparc/rules2.scm (1.2),
	compiler/machines/sparc/rules3.scm (1.2),
	compiler/machines/sparc/rules4.scm (1.2),
	compiler/machines/sparc/rulfix.scm (1.2),
	compiler/machines/sparc/rulflo.scm (1.2),
	compiler/machines/sparc/rulrew.scm (1.2),
	compiler/machines/spectrum/assmd.scm (1.31),
	compiler/machines/spectrum/coerce.scm (1.6),
	compiler/machines/spectrum/compiler.cbf (1.3),
	compiler/machines/spectrum/compiler.pkg (1.50),
	compiler/machines/spectrum/compiler.sf (1.18),
	compiler/machines/spectrum/dassm1.scm (4.19),
	compiler/machines/spectrum/dassm2.scm (4.21),
	compiler/machines/spectrum/dassm3.scm (1.3),
	compiler/machines/spectrum/decls.scm (4.35),
	compiler/machines/spectrum/inerly.scm (1.2),
	compiler/machines/spectrum/insmac.scm (1.3),
	compiler/machines/spectrum/instr1.scm (1.4),
	compiler/machines/spectrum/instr2.scm (1.7),
	compiler/machines/spectrum/instr3.scm (1.3),
	compiler/machines/spectrum/lapgen.scm (4.48),
	compiler/machines/spectrum/lapopt.scm (1.15),
	compiler/machines/spectrum/machin.scm (4.30),
	compiler/machines/spectrum/make.scm (4.90),
	compiler/machines/spectrum/rgspcm.scm (4.4),
	compiler/machines/spectrum/rules1.scm (4.36),
	compiler/machines/spectrum/rules2.scm (4.15),
	compiler/machines/spectrum/rules3.scm (4.42),
	compiler/machines/spectrum/rules4.scm (4.13),
	compiler/machines/spectrum/rulfix.scm (4.48),
	compiler/machines/spectrum/rulflo.scm (4.40),
	compiler/machines/spectrum/rulrew.scm (1.13),
	compiler/machines/vax/assmd.scm (4.7),
	compiler/machines/vax/coerce.scm (1.5),
	compiler/machines/vax/compiler.cbf (1.6),
	compiler/machines/vax/compiler.pkg (1.22),
	compiler/machines/vax/compiler.sf (1.9),
	compiler/machines/vax/dassm1.scm (4.7),
	compiler/machines/vax/dassm2.scm (4.13),
	compiler/machines/vax/dassm3.scm (1.4),
	compiler/machines/vax/decls.scm (4.13),
	compiler/machines/vax/dsyn.scm (1.8),
	compiler/machines/vax/inerly.scm (1.7),
	compiler/machines/vax/insmac.scm (1.13),
	compiler/machines/vax/instr1.scm (1.7),
	compiler/machines/vax/instr2.scm (1.6),
	compiler/machines/vax/instr3.scm (1.10),
	compiler/machines/vax/insutl.scm (4.4),
	compiler/machines/vax/lapgen.scm (4.16),
	compiler/machines/vax/lapopt.scm (1.2),
	compiler/machines/vax/machin.scm (4.13),
	compiler/machines/vax/make.scm (4.89),
	compiler/machines/vax/rgspcm.scm (4.3),
	compiler/machines/vax/rules1.scm (4.8),
	compiler/machines/vax/rules2.scm (4.5),
	compiler/machines/vax/rules3.scm (4.12),
	compiler/machines/vax/rules4.scm (4.5),
	compiler/machines/vax/rulfix.scm (1.6),
	compiler/machines/vax/rulrew.scm (1.3), compiler/rtlbase/regset.scm
	(1.4), compiler/rtlbase/rgraph.scm (4.8),
	compiler/rtlbase/rtlcfg.scm (4.9), compiler/rtlbase/rtlcon.scm
	(4.30), compiler/rtlbase/rtlexp.scm (4.20),
	compiler/rtlbase/rtline.scm (4.11), compiler/rtlbase/rtlobj.scm
	(4.12), compiler/rtlbase/rtlreg.scm (4.6),
	compiler/rtlbase/rtlty1.scm (4.23), compiler/rtlbase/rtlty2.scm
	(4.13), compiler/rtlbase/valclass.scm (1.3),
	compiler/rtlgen/fndblk.scm (4.12), compiler/rtlgen/fndvar.scm
	(1.7), compiler/rtlgen/opncod.scm (4.68),
	compiler/rtlgen/rgcomb.scm (4.21), compiler/rtlgen/rgproc.scm
	(4.14), compiler/rtlgen/rgretn.scm (4.14),
	compiler/rtlgen/rgrval.scm (4.23), compiler/rtlgen/rgstmt.scm
	(4.17), compiler/rtlgen/rtlgen.scm (4.30),
	compiler/rtlopt/ralloc.scm (1.18), compiler/rtlopt/rcompr.scm
	(1.15), compiler/rtlopt/rcse1.scm (4.24), compiler/rtlopt/rcse2.scm
	(4.14), compiler/rtlopt/rcseep.scm (4.7),
	compiler/rtlopt/rcseht.scm (4.13), compiler/rtlopt/rcserq.scm
	(4.6), compiler/rtlopt/rcsesr.scm (4.4), compiler/rtlopt/rdebug.scm
	(1.3), compiler/rtlopt/rdflow.scm (1.3), compiler/rtlopt/rerite.scm
	(1.4), compiler/rtlopt/rinvex.scm (1.9), compiler/rtlopt/rlife.scm
	(1.61), compiler/rtlopt/rtlcsm.scm (1.2), microcode/bintopsb.c
	(9.69), microcode/cmpint.c (1.91), microcode/const.h (9.45),
	microcode/fasl.h (9.38), microcode/fixobj.h (9.38),
	microcode/gctype.c (9.34), microcode/interp.c (9.89),
	microcode/liarc.h (1.14), microcode/lookup.c (9.57),
	microcode/lookup.h (9.51), microcode/mul.c (9.34),
	microcode/object.h (9.49), microcode/ppband.c (9.49),
	microcode/psbmap.h (9.43), microcode/psbtobin.c (9.57),
	microcode/returns.h (9.42), microcode/trap.h (9.44),
	microcode/types.h (9.37), microcode/utabmd.scm (9.77),
	microcode/version.h (11.160), microcode/cmpauxmd/hppa.m4 (1.38),
	microcode/cmpintmd/hppa.h (1.51), runtime/conpar.scm (14.36),
	runtime/dbgutl.scm (14.17), runtime/framex.scm (14.19),
	runtime/global.scm (14.51), runtime/infstr.scm (1.9),
	runtime/infutl.scm (1.60), runtime/load.scm (14.51),
	runtime/make.scm (14.63), runtime/prgcop.scm (1.6),
	runtime/runtime.cbf (1.3), runtime/runtime.pkg (14.300),
	runtime/uenvir.scm (14.38), sf/gconst.scm (4.23), sf/make.scm
	(4.33), sf/pardec.scm (4.11), sf/sf.pkg (4.11), sf/subst.scm
	(4.16), sf/toplev.scm (4.15), sf/usicon.scm (4.4), sf/usiexp.scm
	(4.39): Change copyright to GPL.

1999-01-01 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (4.22), microcode/ppband.c (9.48):
	Unknown changes by Stephen Adams.

1999-01-01 21:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.pkg (1.49): Enable
	disassembler.

1998-12-30 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.49): Don't stop news-article iteration for
	articles that are no longer available; continue the iteration.

1998-12-30 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: nntp.scm (1.21), snr.scm (1.48), edwin.pkg (1.230): Add
	ability to specify a proxy for a NNTP server.

1998-12-28 23:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: nntp.scm (1.20), edwin.pkg (1.228), snr.scm (1.47),
	edwin.pkg (1.229): Implement variable news-group-cache-policy to
	control disk cacheing of news-group information.

1998-12-28 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: snr.scm (1.46), edwin.pkg (1.227): Change news-group
	formatting once more -- this time to give the author's name a
	constant amount of space and expand the subject to fill any
	remaining space.

1998-12-25 00:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.170), bufout.scm (1.10), snr.scm (1.45):
	Change news-group-truncate-subject variable to allow truncation
	proportional to the width of the buffer.  Define new procedures
	BUFFER-X-SIZE and MARK-X-SIZE.

1998-12-17 03:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.132): Fix typo in info-directory-list
	documentation string.

1998-12-08 21:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.197), modefs.scm (1.152): Implement M-x
	insert-filename.

1998-12-04 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.17): Fix bug: under specific
	conditions the closure analyzer could attempt to "undrift" a block
	to be a descendant of another block that was already its ancestor. 
	This resulted in a SIGSEGV.  The bug is fixed, and an error check
	inserted that will provide a more reasonable error message should
	something similar happen.

1998-12-04 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.173): Fix bug: under some circumstances a
	null completion message was being echoed in the minibuffer.

1998-11-23 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ntprm.scm (1.24), os2prm.scm (1.37): Change
	USER-HOME-DIRECTORY to generate an error if it can't find the home
	directory.  This is what the unix version of this procedure does.
	
	The reason for this change is that it will allow files whose names
	begin with "~" to be referenced.  Such files are commonly generated
	by some Windows installation programs.

1998-11-17 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.87): Eliminate another file error in prompting.

1998-11-17 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.86), filcom.scm (1.196): Eliminate another
	file error in prompting.

1998-11-17 22:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.94): Eliminate mistaken extra binding for C-c
	C-u in interaction mode.

1998-11-17 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.172), filcom.scm (1.195), snr.scm (1.44),
	utils.scm (1.44): Add additional argument to
	PROMPT-FOR-COMPLETED-STRING that controls whether the completion is
	case-insensitive; change callers to pass this extra argument. 
	Redefine STRING-GREATEST-COMMON-PREFIX to be case-sensitive, define
	STRING-GREATEST-COMMON-PREFIX-CI, and change callers to use the
	appropriate version.

1998-11-17 21:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.194): Eliminate various I/O errors that can
	occur during completion.

1998-11-04 20:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.40): Special-case handling when the
	virtual/physical coordinate translation uses a slope of zero or
	infinity.

1998-11-03 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.43): Do case-sensitive completion if
	*PARSER-CANONICALIZE-SYMBOLS?* is false.

1998-11-03 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.35): Guarantee that
	*PARSER-CANONICALIZE-SYMBOLS?* is #T when loading option files.

1998-11-03 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.47): Change X-GRAPHICS/READ-BUTTON to
	signal an error when the DELETE-WINDOW event is received.

1998-10-23 01:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/shell.scm (1.18): Fix typo.

1998-10-23 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.21): Fix formatting.

1998-10-23 01:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/shell.scm (1.17): When completing commands, don't insert
	executable suffixes.

1998-10-23 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.85), edwin.pkg (1.226), dosfile.scm (1.20):
	Implement OS/EXECUTABLE-PATHNAME-TYPES.  Modify DOS/FIND-PROGRAM to
	look in the same directory as the Scheme executable (Win32 only).

1998-10-23 01:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: sysprim.c (9.43), sysprim.c (9.44), sysprim.c (9.45):
	Implement SCHEME-PROGRAM-NAME primitive.  This returns (argv[0]).

1998-10-23 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/wf_user.scm (1.9): Implement GET-MODULE-FILE-NAME.

1998-10-23 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.47): Adjust DOS/WINDOWS-TYPE to recognize Win98.

1998-10-22 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.24): Improve command-line parser to
	recognize double-quoted arguments.  This is necessary to support
	quoted long filenames as arguments.

1998-10-21 03:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.28): Work around unpleasant behavior in
	Windows 98.

1998-10-21 03:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.27): Fix typo.

1998-10-21 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.26): Use GetVersionEx instead of GetVersion.
	 The newer call provides more detailed information and will
	recognize newer OS versions.

1998-10-20 01:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.19): Generalize shell-prompt-pattern to
	allow standard Windows shell prompt.

1998-10-19 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2top.c (1.16.1.1): Update version-string code to
	recognize Warp 4.0 encoding.

1998-10-18 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.4.1.1): Recognize FAT32 file-system type and
	treat it as equivalent to VFAT.

1998-10-18 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.240.1.1): Implement "-edit" command-line
	option in 7.4 release.

1998-10-18 20:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.184.1.1): Implement "-edit" command-line
	option in 7.4 release.

1998-10-18 05:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.151.1.5): Changes to integrate
	"stream.scm" revision 14.11 into the 7.4 release.

1998-10-18 05:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.266.1.2): Changes to integrate
	"stream.scm" revision 14.11 into the 7.4 release.

1998-10-18 04:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.57.1.1), runtime.pkg (14.266.1.1): Changes
	to integrate "stream.scm" revision 14.11 into the 7.4 release.

1998-10-13 20:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.131): Make sure that only namestrings are
	recorded in INFO-HISTORY.

1998-09-08 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.43): Further extend M-x news-output-article and
	M-x news-output-article-to-rmail-file so that they accept a prefix
	argument and operate on the next several articles.

1998-09-08 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.68): Fix bug: when defining a command that is
	bound to a lower-case letter, don't define the corresponding
	upper-case letter unless it is undefined in the entire comtab
	chain.	Previously, the code only looked at the current comtab and
	ignored the ancestor comtabs.

1998-09-07 03:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.42): * Fix bug: commands that update group
	message-count did not work in	"all-groups" and "new-groups"
	buffers.
	
	* Extend M-x news-output-article and M-x  
	news-output-article-to-rmail-file so that they work in news-group  
	buffers as well as news-article buffers.

1998-09-06 00:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.23): Implement FILE-EXECUTABLE?, used by
	command-completion code in Edwin.  Rearrange file somewhat to make
	it better correspond to OS/2 file.

1998-08-31 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.34): Fix typo.

1998-08-31 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/webster.scm (1.2): Fix compiler warning.

1998-08-31 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/webster.scm (1.1): Initial revision

1998-08-31 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.33), edwin.pkg (1.225), decls.scm (1.61),
	ed-ffi.scm (1.44): Implement Webster commands.

1998-08-31 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.12): Use new primitive to map given port
	numbers to network order.

1998-08-30 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2sock.c (1.7), os2sock.c (1.8), ntsock.c (1.4),
	uxsock.c (1.17), pruxsock.c (1.15), uxsock.h (1.7): Implement
	primitive to map socket port numbers from host to network order.

1998-08-29 22:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/shell.scm (1.16): Fix two bugs in command completion: (1)
	completions list contained wrong entries in some circumstances, and
	(2) command-completion procedure not returning #T in all
	circumstances that it did completion.

1998-08-29 22:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: shell.scm (1.15), dosfile.scm (1.18), unix.scm (1.84):
	Implement completion of commands.

1998-08-29 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.27): Redefine COMINT-DYNAMIC-COMPLETE so that
	it tries a list of completion procedures, as in Emacs 19.  Fix bug
	in COMINT-LINE-START: used current value of COMINT-PROMPT-REGEXP
	rather than the one for the buffer being examined.

1998-08-29 21:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.171): Erase message when inserting
	completion.  That way, STANDARD-COMPLETION consistently writes
	something in the message area, eradicating any previous message.

1998-07-31 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.72): If the BackSpace keysym is received,
	and XLookupString has translated it into ASCII backspace,
	substitute ASCII rubout instead.

1998-07-25 01:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.16): Explicitly code the Linux superblock
	magic constants in this file.  The previous trick of reading
	various kernel header files no longer works when linking with
	glibc2, because there are symbol conflicts between the kernel and
	glibc2.

1998-07-20 02:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.47): Changes for IRIX 6.x.

1998-07-20 02:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.84), fasload.c (9.85): Changes for IRIX
	6.x.

1998-07-20 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.70): Changes for IRIX 6.x.

1998-07-20 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: terminfo.c (1.2), ux.h (1.60.1.2): Changes for IRIX
	6.x.

1998-07-20 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxio.c (1.42), uxtrap.h (1.27): Changes for IRIX 6.x.

1998-07-20 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: option.c (1.46), oscond.h (1.25), regex.c (1.18),
	ux.h (1.69): Changes for IRIX 6.x.

1998-07-20 00:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.99): Must call mprotect to set the
	"execute" bit on Scheme's memory, so compiled code can run.  Also,
	implement mechanism to use mprotect to flush the cache (which is
	disabled by default).

1998-07-20 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.14): Fix copyright date.

1998-07-19 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: psbmap.h (9.42), missing.c (9.31): Include "oscond.h"
	to get definition for _IRIX.

1998-07-19 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.22): Fix copyright date.

1998-07-19 22:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.37.1.1): Changes for IRIX 6.x.

1998-07-19 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.13): More recent MIPS processors
	(and the corresponding assemblers) require that the stack pointer
	always be a multiple of 8.  Change the code to make that so.  Also,
	work around an assembler bug having to do with ".globl" and the
	"la" pseudo-instruction.

1998-07-19 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpintmd/mips.h (1.21), config.h (9.83.1.1): Must
	call mprotect to set the "execute" bit on Scheme's memory, so
	compiled code can run.	Also, implement mechanism to use mprotect
	to flush the cache (which is disabled by default).

1998-07-19 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.h (1.60.1.1), uxio.c (1.33.1.1), uxtrap.h
	(1.23.1.1): Changes for IRIX 6.x.

1998-07-19 16:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: option.c (1.35.1.1), oscond.h (1.15.1.1), regex.c
	(1.14.1.1): Changes for IRIX 6.x.

1998-07-19 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.68), bintopsb.c (9.63.1.1): Changes for
	IRIX 6.x.

1998-07-09 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/: make.scm (1.5), clipbrd.scm (1.3), wf_user.scm (1.8),
	clipbrd.scm (1.4): Fix bug in clipboard implementation.

1998-06-29 00:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/javamode.scm (1.2): Fix typo.

1998-06-29 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.17), unix.scm (1.83): Add Java mode.

1998-06-29 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.60), ed-ffi.scm (1.43), edwin.pkg (1.224),
	edwin.ldr (1.62): Add Java mode.

1998-06-29 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/javamode.scm (1.1): Initial revision

1998-06-29 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.18): Various changes to handle C++/Java "//"
	comments.

1998-06-28 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/syntax.scm (1.82): Work around compiler bug.

1998-06-28 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: cinden.scm (1.17), edwin.pkg (1.223): Export new
	procedure C-COMPUTE-INDENTATION for use by Java mode.

1998-06-28 16:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: syntax.scm (1.80), syntax.scm (1.81): Allow
	MAKE-SYNTAX-TABLE to take an argument, which if given is the table
	to copy.

1998-06-21 05:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.19): If NNTP server closes connection, attempt
	to notice this and recover by reopening the connection. 
	Previously, we just signalled an error and the user had to manually
	reopen.  Problem: the specific error code to be returned by the
	server in this situation is not specified in the RFC, so we must
	determine the value empirically.

1998-06-21 05:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.93): When flushing output, recognize
	";Quit!".

1998-06-20 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.41): Fix fencepost type error.

1998-06-18 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.14), microcode/uxfs.c (1.15),
	runtime/unxprm.scm (1.50): Add code to detect NTFS file system
	under Linux.

1998-06-07 04:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/toplev.scm (1.11): Add usual-integrations declaration to
	constructor/loader definitions to eliminate compiler warning.

1998-06-07 04:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.29): Fix quoting problem associated with
	#!aux parsing.

1998-06-07 04:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.92): Implement C-c C-l, C-c C-o, and C-c C-u
	as in shell buffers.

1998-06-07 04:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.26): Generalize code that refers to process
	mark so that it can be used in an inferior-repl buffer.  In
	coming-flush-output, don't flush output unless there is some.

1998-06-07 04:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.42): Fix bug: C-u M-A was not inserting args
	when one of the #! tokens appeared in the argument list.

1998-06-01 01:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.91): Use in-buffer prompt to handle errors in
	the REPL buffer.  The modeline prompt was very intrusive and
	couldn't be aborted out of.  The new mechanism reads input exactly
	as the in-buffer debugger does, and can be aborted.

1998-06-01 01:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.58): Most of the time, it's useful to use the
	global environment if a particular package isn't loaded.

1998-05-30 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dosprm.scm (1.40), ntprm.scm (1.22), unxprm.scm (1.49),
	os2prm.scm (1.36): Change TEMPORARY-FILE-PATHNAME to allow a
	directory to be specified.

1998-05-17 23:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/xform.scm (4.8): Fix thinko.

1998-05-17 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: pardec.scm (4.10), pthmap.scm (4.4): Fix pagination.

1998-05-17 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/xform.scm (4.7): Add warning to be printed when the file being
	syntaxed doesn't have USUAL-INTEGRATIONS.  Fix pagination.

1998-05-04 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.37): Fix bugs in handling of
	ENVIRONMENT-ASSIGNABLE? and ENVIRONMENT-ASSIGN! that are the
	analogs of the bug in ENVIRONMENT-LOOKUP that was fixed in the
	previous revision.

1998-05-04 20:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.36): Fix bug: ENVIRONMENT-LOOKUP did not
	look at parent environments if the environment being operated on
	was a compiled-code environment.  Instead, it bombed with a type
	error.

1998-05-04 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rbtree.scm (1.5), runtime.pkg (14.299): Add operations
	to read or delete the min/max elements of a tree.

1998-05-01 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.57): Change the test used to determine if
	SCHEME-ENVIRONMENT is being set to a package name.

1998-04-30 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.30): Fix ENVIRONMENT-SYNTAX-TABLE so that
	it works for compiled-code environments.

1998-04-30 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.56): Don't convert package names to
	environments when binding the SCHEME-ENVIRONMENT buffer variable --
	this is a screw when reloading packages.  Also, use new
	ENVIRONMENT-SYNTAX-TABLE to determine the default syntax table to
	be used when evaluating.

1998-04-30 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.61): Use new mechanism to bind syntax tables
	to environments.

1998-04-30 17:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.50): Add mechanism to associate syntax
	tables with environments.

1998-04-30 17:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax.scm (14.29), runtime.pkg (14.298), global.scm
	(14.49): Add mechanism to associate syntax tables with
	environments.

1998-04-30 14:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: msort.scm (14.5), qsort.scm (14.3), runtime.pkg
	(14.297): Change sort routines so that both merge and quick sort
	can be loaded at the same time.  As before, SORT and SORT! default
	to merge sort.

1998-04-27 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.8): Fix bug: internal definitions weren't being
	handled by DEFINE-METHOD.

1998-04-18 01:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntenv.c (1.7): Add primitive WIN32-VIRTUAL-QUERY,
	which is a direct interface to the Win32 VirtualQuery API call. 
	This is very useful for examining Scheme's address space.

1998-04-18 01:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: nttop.c (1.25), ntgui.c (1.23), memmag.h (1.6): Add
	mechanism to reserve the largest available block of memory below
	0x04000000 at the earliest possible moment.  This maximizes the
	amount of memory available for Scheme's heap.  Unfortunately, it
	still isn't very much space compared to other platforms, and under
	Visual C++ it isn't even as much as that provided by Watcom C/C++. 
	I don't know why this is so poor, or whether there is anything to
	be done about it.

1998-04-18 01:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.22): Use external debugging info
	(-Zi) and map the program text above 0x04000000 so that it
	minimally interferes with Scheme's heap.

1998-04-18 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.h (9.98), nttrap.c (1.16), cmpauxmd/i386.m4
	(1.48): Define WINNT_RAW_ADDRESSES -- alternative isn't used any
	longer and has a small time penalty.

1998-04-16 02:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.35): Make screen_y_extra patch more
	clever so that it works right under Watcom and Visual C++.

1998-04-16 02:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.21): Add resources to executables.

1998-04-16 02:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.34): Fix two bugs under Visual C++:
	System-menu icon was wrong, and window height was off by one pixel.

1998-04-16 02:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.22): Tweak inline assembly code for Visual
	C++.

1998-04-16 00:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.20): Changes to support crypto/gdbm
	DLLs.

1998-04-14 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prntio.c (1.9), utils.c (9.73): Changes to get
	microcode working when compiled with Microsoft Visual C++ version
	5.0.

1998-04-14 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ansidecl.h (1.6), intprm.c (1.8), ntutl/makefile
	(1.19), ntfile.c (1.12), ntgui.c (1.21), ntio.c (1.21), ntproc.c
	(1.7), ntscreen.c (1.33), ntsock.c (1.3), option.c (1.45), oscond.h
	(1.24), outf.c (1.10), posixtyp.h (1.15): Changes to get microcode
	working when compiled with Microsoft Visual C++ version 5.0.

1998-04-10 12:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.23): Don't signal error when user requests a
	DIRECTORY-READ on a pattern that matches no files.

1998-04-01 03:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: stream.scm (14.11), runtime.pkg (14.296), make.scm
	(14.62): Be more aggressive about dropping pointers to streams when
	traversing them.  Provide more accurate error messages for
	malformed streams.

1998-03-31 15:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/stream.scm (14.10): Eliminate numerous brain-damaged
	references (mea culpa!) to the head of a stream in procedures that
	map down the stream.
	
	Fix a premature-dereference bug in STREAM-MAP.

1998-03-31 03:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.17): Fix thinko -- random-state objects
	must have unparser.

1998-03-29 03:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2fs.c (1.9): Don't signal error when user requests a
	DIRECTORY-READ on a pattern that matches no files.

1998-03-20 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.26): Change name of Linux sigcontext
	structure, because RedHat defines a conflicting structure in their
	newer releases.

1998-03-19 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.7): Implement SEPARATOR option to DEFINE-CLASS.

1998-03-11 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.130): Reset tag-table locations after reading
	dir file.

1998-03-09 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.16): Fix bug: illegal auto-save filenames
	were being generated on NTFS and VFAT.

1998-03-08 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.38): Restrict parsing of device so that it
	requires a single letter.

1998-03-08 22:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.295): Export STRING->CHAR-SET, added in
	1995 but obviously never used.

1998-03-08 03:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.90): Add ability to prompt for inferior-REPL
	errors just as is done for ordinary buffer evaluation.	Make this
	prompting the default.

1998-03-08 02:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.43): Fix thinko in previous change.

1998-03-08 02:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debug.scm (1.42), artdebug.scm (1.25), evlcom.scm (1.55),
	editor.scm (1.243), edwin.pkg (1.222): Change interface procedure
	DEBUG-SCHEME-ERROR so that it returns if the user opts not to enter
	the debugger.  Also, do a better job of presenting the error
	message to the user when asking whether to start the debugger.

1998-03-08 02:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.129), hlpcom.scm (1.108), debuge.scm (1.52),
	vc.scm (1.29): Add argument to callers of POP-UP-TEMPORARY-BUFFER
	so that they can pass properties through.

1998-03-08 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.104), regcom.scm (1.21), prompt.scm
	(1.170): Add argument to callers of POP-UP-TEMPORARY-BUFFER so that
	they can pass properties through.

1998-03-07 03:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.54): Tweak error-reporting mechanism to make
	it more reliable.  Trouble is that this isn't the right place for
	it -- it should be integrated into the debugger interface.

1998-03-04 16:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.294): Export (inexplicably missing)
	stream procedures.

1998-03-02 14:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.89): Add missing documentation for various
	commands.

1998-03-02 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.41): Add documentation for c-m-i and m-A.

1998-02-23 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.18): Add stupid mechanism to break cycles in
	reference graphs.  This doesn't try to do a good job -- it just
	breaks them at the point where they are discovered.  After having
	used this program for over a year, the cycle I just ran across was
	the first, out of perhaps 100,000 messages or more, so this is an
	unusual occurrence.

1998-02-22 03:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.293), rep.scm (14.51), macros.scm
	(1.2): Eliminate BKPT macro in favor of procedure.  The macro used
	(THE-ENVIRONMENT), which screwed the compiler.	The procedure uses
	the environment of the first subproblem of the continuation of the
	call, which in many cases is the same thing.
	
	The effect of the old BKPT macro can still be achieved by writing
	
	(breakpoint-procedure (the-environment) ...)

1998-02-21 19:17  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/lapopt.scm (1.5): The previous change
	caused LAPOPT to take huge amounts of time (65% of compile time). 
	Reverted to old matcher and patterns (about 5%) and added a hash
	table dispatch to make LAPOPT's time insignificant (now <1%).

1998-02-21 16:45  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.67): Changed open-coding of range
	checks to use unsigned comparison which checks the high and low
	limits in one operation.  Range checks without an upper bound
	generate an INDEX-FIXNUM check.  Open coding of INDEX-FIXNUM still
	needs to be implemented on the MIPS.

1998-02-19 16:28  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/: machines/i386/rules3.scm (1.33), back/lapgn1.scm
	(4.17), machines/i386/lapgen.scm (1.26),
	machines/spectrum/lapgen.scm (4.47), machines/C/lapgen.scm (1.11),
	machines/mips/lapgen.scm (1.15), machines/sparc/lapgen.scm (1.2),
	machines/vax/lapgen.scm (4.15), machines/alpha/lapgen.scm (1.5),
	machines/bobcat/lapgen.scm (4.50): There was a subtle problem with
	the interrupt check determining code.
	
	The old code was lazy about searching the rgraph to determine if
	entry points and exit points were leaf-like.  It explored the whole
	tree when when it found some entry RTL.  This is a problem in the
	case of expressions since expressions have no distinguished entry
	RTL.  Thus LAP was generated for some expression bblocks before the
	search took place.  This is a problem because the LAP instructions
	replace the RTL instructions, and the RTL is needed to determine
	the interrupt checks.
	
	The whole compiler staged only because type-checking is turned off
	by default.  The RINST-INSN field is a (vector-ref 0), which, when
	unchecked, fortuitously happened to load the CDR of the LAP, which
	then proceeded to gracefully fail the RTL predicates.
	
	The solution is to introduce a PRE-LAPGEN-ANALYSIS procedure to to
	machine dependent analysis immediately prior to LAP generation.
	
	The analysis for the i386 back end does the original analysis.	The
	other back ends do nothing.

1998-02-19 15:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (4.13): Fixed abstraction violations
	where '() was being used instead of (LAP).

1998-02-19 03:56  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.30): Improved patterns for
	(fix:* n 2) and (fix:lsh n -1)

1998-02-18 02:57  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.21): Improved search for
	target register - stronger preference for ST(0) as result of unary
	or binary flonum operations.
	
	Load flonum constants pc-relative rather than (double indirect) via
	constants block.  Load flonum constants as 32 bit constants if
	possible since this avoids mis-alignment penalty.

1998-02-18 02:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/: lapgen.scm (1.25), rulrew.scm (1.13):
	Changes to improve flonum code.
	
	Prefer ST(0) over other registers as a target for flonum
	operations.    - lapgen: sort-machine-registers    - rulflo:
	improved search for target register    - rulrew: accept any flonum
	constants, not just 0.0 and 1.0

1998-02-18 02:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.29): Better rules for
	(fix:lsh ? <constant>)

1998-02-17 15:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm3.scm (1.5): Added missing opcode:
	FADDP

1998-02-16 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.23), runtime.pkg (14.292): Change
	mechanism used to signal the no-current-thread error.  Previous
	mechanism tried to directly signal the error, which results in
	divergence.  New mechanism sends the error to the console thread,
	or ignores the error if there is no console thread.
	
	Modify blocking code to catch any errors that occur while blocked. 
	These errors are being signalled in the no-current-thread state,
	and must be resignalled to the console thread (again, they are
	ignored if there is no console thread).
	
	Modify several thread operations to be no-ops in the
	no-current-thread state, rather than signalling an error.
	
	Implement new procedure CONSOLE-THREAD.

1998-02-15 22:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.32): Fix apparently
	irrelevant thinko.

1998-02-15 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.31): Fix apparently
	irrelevant thinko.

1998-02-14 02:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/lapopt.scm (1.4): Generalized patterns for
	OR and AND.

1998-02-13 19:52  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.30): Merged in changes that
	eliminate interrupt checks in leaf-like procedures.

1998-02-13 19:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.7): zero? -> fix:zero?

1998-02-13 18:53  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.6): Change arithmetic in loops to fixnum
	arithmetic.

1998-02-13 17:25  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/char.scm (14.9): Update CHAR-CODE-LIMIT and
	CHAR-INTEGER-LIMIT for wide characters.  This should have been part
	of the previous update, but these constants are unused, so no harm
	done.

1998-02-13 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.28): Fix two bugs that occur when using revisions
	off the main branch.

1998-02-12 01:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.42): Fix thinko in previous change.

1998-02-12 01:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (14.12): Eliminate "system" datatype.  Replace
	it by a simpler "subsystem identification" mechanism.

1998-02-12 01:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (14.11): Eliminate "system" datatype.  Replace
	it by a simpler "subsystem identification" mechanism.

1998-02-12 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (14.10), runtime/runtime.pkg (14.291),
	runtime/savres.scm (14.29), edwin/edwin.pkg (1.221),
	compiler/machines/C/cout.scm (1.20), edwin/sendmail.scm (1.41):
	Eliminate "system" datatype.  Replace it by a simpler "subsystem
	identification" mechanism.

1998-02-12 00:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* sicp/sbuild.scm (1.4): Change to use ADD-IDENTIFICATION! rather
	than ADD-SYSTEM!.

1998-02-11 23:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* swat/scheme/load.scm (1.3): Change to use ADD-IDENTIFICATION!
	rather than ADD-SYSTEM!.

1998-02-11 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* pcsample/load.scm (1.4), wabbit/load.scm (1.2), sos/load.scm
	(1.4): Change to use ADD-IDENTIFICATION! rather than ADD-SYSTEM!.

1998-02-11 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.175), win32/make.scm (1.4), 6001/make.scm
	(15.28): Change to use ADD-IDENTIFICATION! rather than ADD-SYSTEM!.

1998-02-11 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (14.9): Change ADD-SYSTEM! to replace an
	existing entry of the same name.

1998-02-11 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (4.32), cref/make.scm (1.16), edwin/make.scm (3.93):
	Change to use ADD-IDENTIFICATION! rather than ADD-SYSTEM!.

1998-02-11 21:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/sparc/make.scm (1.2): Use common loader for
	compiler.

1998-02-11 21:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.108): Change to use ADD-IDENTIFICATION!
	rather than ADD-SYSTEM!.

1998-02-11 16:53  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/win_ffi.scm (1.5): Fix bug where char* was refusing
	strings.

1998-02-11 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.61): Undo previous change, but add global
	variable *ALLOW-PACKAGE-REDEFINITION?* that, if true, allows
	packages to be redefined.  Intent is that this variable will be
	fluid-bound by programs that want to be reloadable.

1998-02-11 00:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: packag.scm (14.27), runtime.pkg (14.290): Undo previous
	change, but add global variable *ALLOW-PACKAGE-REDEFINITION?* that,
	if true, allows packages to be redefined.  Intent is that this
	variable will be fluid-bound by programs that want to be
	reloadable.

1998-02-11 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.27): Add code to map the 8th bit of an
	incoming character to the meta bit.

1998-02-10 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.26): Change default: PACKAGE/ADD-CHILD!
	previously allowed redefinition of a package child only when the
	optional argument was true.  Now, redefinition is always allowed
	_unless_ the optional argument is true.
	
	Additionally, when a package is redefined, all of its child
	packages are deleted.
	
	The motivation for this change is to allow reloading of software
	subsystems that use the package abstraction.  Previously, once such
	a subsystem was loaded, it could not be reloaded without restarting
	Scheme.

1998-02-01 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.82): Rewrite OS/BUFFER-BACKUP-PATHNAME to use
	the algorithm from "dosfile.scm".  This fixes the bug that caused
	compressed backup files to be ignored when computing the name of a
	numeric backup file.

1998-02-01 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.h (1.3): Accept a wider range of error codes as
	valid reasons why a given file might be inaccessible.

1998-02-01 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: nttrap.c (1.15), ntfs.c (1.22): Disable
	critical-error and GPF pop-up boxes.

1998-02-01 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.27), win32/make.scm (1.3): Patch loader so that
	debugging info will work on other systems.

1998-02-01 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.23): Move with-saved-configuration to Edwin
	proper.  This will eliminate unassigned-variable bug in
	LOAD-PS-COPY-FILE when running in contexts where "floppy.scm" isn't
	loaded.

1998-02-01 00:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.52), edwin.pkg (1.220): Implement mechanism
	to save a screen configuration for a given dynamic extent.

1998-01-30 04:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/graphics.scm (1.15): Don't activate graphics windows when
	they are created.

1998-01-30 04:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/graphics.scm (1.14): Implement workaround for fatal Windows
	NT bug.  The bug crashes NT 4.0 and can be recreated by creating a
	number of graphics windows and then closing them with their close
	buttons.  The workaround disables the close button.

1998-01-29 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.219), xterm.scm (1.55): Implement procedure
	to return the size of the display root window.

1998-01-29 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.71): Add new primitive to return the size
	of the root window of a display.

1998-01-23 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.128): Finish previous change so that no
	reference is made to the Edwin info directory at the time that the
	band is made.

1998-01-23 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/pic-imag.scm (1.9): Change method used to determine whether
	image data is stored in a string or a vector: don't use image
	depth, instead examine contents of gray map to see if pixel values
	fit in string.

1998-01-23 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.27): Fix bug: in new image design, gray map
	must always be a vector.

1998-01-22 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.26): Don't load "floppy" unless running under
	HP-UX.

1998-01-22 19:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.22): Change subprocess stuff to allow
	redisplay.

1998-01-22 19:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.26): Reconditionalize decision to use the
	hairy floppy stuff so that it only happens on HP-UX.

1998-01-22 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.21): Fix random bug caused by changes in
	revision 1.16.

1998-01-22 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.20): Fix problem caused by incorrect
	assumption that universal time is the same as unix file time.

1998-01-20 13:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntscreen.h (1.16), microcode/ntscreen.c (1.32),
	runtime/char.scm (14.8), edwin/calias.scm (1.17), edwin/modefs.scm
	(1.151), microcode/object.h (9.48): Changes for International
	keyboards on win32 systems.
	
	ntscreen changed to work better with international keyboards.  The
	changes peek into the event queue to see how the key presses have
	been translated into characters.  Modifiers are also tracked to
	enable them to be detected in parallel with keyboard translations
	(so that modifier chords like C-M- are detected).
	
	Characters now have 16 bits of character code (instead of 7) to
	allow 8-bit ISO latin and Unicode characters.  Strings are still
	based on 8-bit characters.
	
	Runtime changed to allow these `wide' characters to be written and
	read e.g. #\<code62834>
	
	Edwin modes changed to treat characters in the range 128-255 as
	normal alphabetic characters (to enable accented characters).

1998-01-19 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.25): Don't disable compressed and encrypted
	files.	Info needs compressed files to do its job properly.

1998-01-19 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/tterm.c (1.5): Change call `tparam' so that it does not
	depend on a feature only available in GNU `tparam'.  This is
	important on GNU/Linux because it allows us to statically link
	"ncurses".
	
	This has the added benefit that it allows the "ncurses" stuff to
	work correctly.  Previously, when using "ncurses", the screen was
	scrambled so badly that it couldn't be used.  This appears to be a
	consequence of the combination of GNU `tparam' with "ncurses".

1998-01-09 00:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntfs.c (1.20), ntfs.c (1.21): Add code to dummy the
	file info for the root directory on Windows 95.

1998-01-08 13:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: print.scm (1.15), print.scm (1.16): Modify Windows
	printing so that it works on Windows 95, which doesn't have the
	"print" program.

1998-01-08 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntio.c (1.20): Eliminate use of `GetHandleInformation',
	which is not implemented on Windows 95.  Add conditionalized
	tracing code for input operations.

1998-01-08 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntproc.c (1.6): Add conditionalized code to trace
	process activity.

1998-01-08 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.52), io.scm (14.53), process.scm (1.21),
	runtime.pkg (14.289): Fix bug in Windows 95: when a subprocess
	exits, close its I/O ports.  This is necessary because our code can
	get into a state where it is trying to read from a subprocess pipe
	and needs to be told that the other end of the pipe was closed. 
	This indication is supplied by Windows NT, but does not appear to
	work properly under Windows 95.

1998-01-08 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.21): Detect FAT32 file system and treat it
	the same as VFAT.

1998-01-05 01:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.39): Fix method used to compute the size
	of an image's data array.  Previous method was little better than a
	guess -- and was wrong.  New method is correct and uses advertised
	procedures to determine correct values.

1998-01-03 13:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.24): Implement command-line option to specify
	student directory.

1998-01-03 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.127): Change how info-directory-list is
	initialized so that it always includes the distribution's
	directory.

1998-01-03 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.126), unix.scm (1.81), dosfile.scm (1.15),
	utils.scm (1.43), edwin.pkg (1.218): Implement Info
	directory-merging mechanism like that of Emacs.  This takes "dir"
	files from all of the directories in the Info directory list and
	merges them into a single "dir" buffer.

1997-12-30 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.42), dosfile.scm (1.14), dos.scm (1.46):
	Change definition of DOS/DEFAULT-SHELL-FILE-NAME so that it is
	computed at run time rather than at build time.  This is necessary
	because a band created on Windows NT can be used on Windows 95, and
	must have different values for each of these systems.

1997-12-30 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: picture.scm (1.26), pic-imag.scm (1.8): Install new X11
	gray-map code that understands about high-color displays.

1997-12-29 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.25): Install new X11 gray-map code that
	understands about high-color displays.

1997-12-29 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.24): Install new X11 gray-map code that
	understands about high-color displays.

1997-12-29 20:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.20): Fix bug: CURRENT-HOME-DIRECTORY would
	signal an error when neither the home directory nor the user name
	was available.	Now, it returns the root of the system drive
	instead.

1997-12-29 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/eystep.scm (1.5): Fix typo.

1997-12-29 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.19): Fix "stat" code to properly handle
	filenames ending in a backslash.  This was working fine on NT, but
	apparently fails on '95.

1997-12-26 18:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: print.scm (1.13), print.scm (1.14): Add code to provide
	printing on NT.

1997-12-23 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: edextra.scm (1.22), edextra.scm (1.23): Add environment
	variable to specify the location of the 6.001 files.

1997-12-23 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.19): Add additional environment variable to
	check in order to find the Windows 95 system directory.

1997-12-22 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.242), edwin.pkg (1.217): Add "-edit"
	command-line option to simplify starting editor.

1997-12-22 21:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.18): Add additional environment variable to
	check in order to find the Windows 95 system directory.

1997-12-10 21:51  Stephen Adams <adams@zurich.ai.mit.edu>

	* sicp/: graphics.scm (1.4), compat.scm (1.7): Make graphics work
	for OS/2 and WIN32 as well as X.  Update copyright.

1997-12-02 00:52  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: lambda.scm (14.13), syntax.scm (14.28): Changed error
	report for duplicate names to explicitly mention the duplicated
	names.

1997-11-28 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.31): Change font-name parsing code so
	that it will properly parse fonts whose names begin with a digit.

1997-11-20 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.216): Add some missing packages to the Win32
	implementation.

1997-11-20 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: telnet.scm (1.13), comint.scm (1.25): Define process
	filter to strip carriage-returns from the output of a process. 
	Change COMINT-EXEC to start a buffer's process -before- the
	buffer's major mode is set, so that process filters can be defined
	in the mode hooks.

1997-11-20 00:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: process.scm (1.53), edwin.pkg (1.215), telnet.scm (1.12):
	Change interface to process-filter.

1997-11-19 18:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: telnet.scm (1.11), process.scm (1.52): Change interface
	to process-filter.

1997-11-19 03:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/dibutils/makefile.wcc (1.2): Add compiler flag that
	specifies to compile the object files for use in a DLL.  Change
	optimization target from 486 to Pentium Pro.

1997-11-16 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.12): Fix instruction that causes an
	assembler error on newer assemblers.

1997-11-13 03:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.17): Fix bugs relating to handling of messages
	whose bodies have been removed from the server.

1997-11-12 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2prm.scm (1.35), ntprm.scm (1.17): Fix think-o.

1997-11-12 17:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.16): Fix code that determines system
	directory.  My memory as to the relevant environment variable was
	faulty when I wrote this.

1997-11-12 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2sock.c (1.6): Final changes to previous change, to
	eliminate compiler warnings and other minor problems.

1997-11-12 03:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2prm.scm (1.34), ntprm.scm (1.15): Rewrite OS/2 and
	NT versions of CURRENT-USER-NAME, CURRENT-HOME-DIRECTORY, and
	USER-HOME-DIRECTORY to use the same heuristics in both systems. 
	Improve the heuristics so that these procedures will work with a
	minimum number of environment bindings.

1997-11-11 08:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ntprm.scm (1.14), os2prm.scm (1.33): Signal error when
	unable to determine user name or home directory.

1997-11-11 07:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.13): Signal error when unable to determine
	user name or home directory.

1997-11-11 07:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxpth.scm (14.24), dospth.scm (1.37): Reverse earlier
	decision: ignore errors that occur with "$" and "~" syntax in
	pathnames.

1997-11-06 02:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.40): Fix typo.

1997-11-06 02:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.39): Eliminate compiler warnings.

1997-11-06 01:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.38): Place BCC field after any CC fields.

1997-11-04 06:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.37), edwin.pkg (1.214): Implement direct
	SMTP mail transmission.  This is for Windows systems, which don't
	have a sendmail daemon, but it can be used on any system that
	supports sockets.

1997-11-04 06:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: utils.scm (1.42), nntp.scm (1.16): Define
	SUBSTRING->NONNEGATIVE-INTEGER.

1997-11-04 04:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.41): Eliminate old and incompatible definition
	of READ-LINE.

1997-11-01 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.15): Use newly-extended OPEN-TCP-STREAM-SOCKET.

1997-11-01 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: socket.scm (1.10), socket.scm (1.11): Change
	OPEN-TCP-STREAM-SOCKET and OPEN-UNIX-STREAM-SOCKET to return one
	port instead of two, and to allow optional arguments to specify the
	buffer size and line translation.  Increase the default buffer size
	to 4096 bytes.

1997-11-01 14:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.51): Change default line translation for TCP
	stream sockets.  These almost always use CR/LF, regardless of the
	operating system.

1997-11-01 14:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosio.c (1.16): Fix to match change in "osio.h".

1997-11-01 02:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.288): Add new procedure OS/HOSTNAME.

1997-11-01 02:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.80), dosfile.scm (1.13): OS/HOSTNAME now
	defined in runtime system.

1997-11-01 02:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.9): Add new procedure OS/HOSTNAME.

1997-11-01 02:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2sock.c (1.5), uxsock.c (1.16), pruxsock.c (1.14):
	Add new primitives GET-HOST-NAME and CANONICAL-HOST-NAME.

1997-11-01 02:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntapi.h (1.8), os2sock.c (1.4), os2api.h (1.10),
	ntsock.c (1.2), uxsock.c (1.15), pruxsock.c (1.13), uxsock.h (1.6):
	Add new primitives GET-HOST-NAME and CANONICAL-HOST-NAME.

1997-11-01 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxsock.c (1.12): Add new primitives GET-HOST-NAME and
	CANONICAL-HOST-NAME.

1997-10-30 20:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.36), edwin.pkg (1.213): Add generalized
	mechanism for formation of mail return address.  The new mechanism
	matches that of Emacs.

1997-10-26 04:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.18): Partially undo last change.	Time-stamp
	problem is more complicated than I originally thought.

1997-10-26 04:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntfs.c (1.17), prntfs.c (1.14), ntfs.h (1.2): Change
	method used to get file information.  It turns out that
	GetFileInformationByHandle is returning incorrect time stamps for
	files on a Samba filesystem, but FindFirstFile returns correct time
	stamps in the same circumstance.  This discrepancy becomes apparent
	when switching between daylight-savings and standard time.

1997-10-26 03:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.11): Add socket and gdbm support
	for Win32.

1997-10-26 03:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: nttop.c (1.24), ntapi.h (1.7), pruxsock.c (1.11): Add
	socket support for Win32.

1997-10-26 03:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntsock.c (1.1): Initial revision

1997-10-25 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosfile.scm (1.12), dos.scm (1.45), os2.scm (1.41),
	dirw32.scm (1.2): Add support for compressed and encrypted files.

1997-10-25 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.10): Add support for Blowfish and
	MD5.

1997-10-25 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osio.h (1.13), ntio.c (1.19), ntio.h (1.10): Add
	ability to handle named pipes.	This should be all that is
	necessary to manage the client side of a named pipe.

1997-10-25 03:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntproc.c (1.5): Fix problem with previous change.  Must
	explicitly close the handle copies that are passed to the
	subprocess.  Otherwise the pipe won't be deleted at the appropriate
	time, and PeekNamedPipe won't be able to tell when the child closes
	its write handle.

1997-10-24 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntproc.c (1.4), ntapi.h (1.6): Fix method used to
	pass stdio handles to a subprocess.  Method used by Emacs, and
	recommended in (some parts of) the M$ documentation, involves
	side-effects to Scheme's stdio handles.  Better method is to use
	the STARTUPINFO datastructure to tell CreateProcess what handles to
	use -- no side-effects.

1997-10-24 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prntio.c (1.8), ntfile.c (1.11), ntio.c (1.18),
	ntio.h (1.9), nttty.c (1.7): * Change channel data structure.  Now,
	instead of being tagged with a	 "type", it is tagged with a
	"class".  The "class" has associated   operations, so that basic
	channel operations such as reading and	 writing are generic.  This
	change allows the code to be modularized   a bit better, and will
	facilitate the introduction of sockets.
	
	* Eliminate the procedure NT_pipe_channel_available, replacing it
	with   the generic procedure NT_channel_n_read.
	
	* Eliminate references to long-obsolete "console" stuff.
	
	* Change file-pointer positioning code to use SetFilePointer rather
	  than __llseek.
	
	* Don't try to signal an error if MsgWaitForMultipleObjects returns
	an   unexpected answer -- only if it returns WAIT_FAILED.  We are
	only   using it as a mechanism for blocking.
	
	* Make cosmetic changes, eliminating unnecessary instances of
	"DEFUN"   and the like.  These were introduced for unix, because
	there were   non-ANSI compilers at that time.  On NT, all compilers
	are ANSI.

1997-10-24 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntproc.c (1.3): In OS_process_wait, replace use of
	Sleep and WaitForSingleObject with MsgWaitForMultipleObjects, so
	that the procedure responds immediately whenever anything
	interesting happens.

1997-10-24 02:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntproc.c (1.2): Fix bugs in code that terminates a
	subprocess.  Make sure that subprocess handles are closed at the
	appropriate times.

1997-10-24 02:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.20): When killing a subprocess on NT,
	close our end of the channels talking to the subprocess.  It turns
	out that some processes don't close properly until this is done.

1997-10-22 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.32): Fix typo in previous change.

1997-10-22 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.31): Change OS/MAKE-SUBPROCESS to use new
	OS-specific primitive.

1997-10-22 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2proc.c (1.5), pros2io.c (1.7): Fix bugs from most
	recent changes.

1997-10-22 03:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.48): Use new unix-specific primitive to
	start subprocesses.

1997-10-22 02:47  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/lapopt.scm (1.3): Implemented a pattern
	based peephole optimizer.
	
	Main improvements:
	
	 1. every CONS-[MULTI]CLOSURE saves one instruction
	 2. most funcalls save one stack access
	 3. fixnum arithmetic (plus and minus constants)
	 4. fixnum case of generic add/subtract constant
	 5. fixnum bitwise operations with constants (and/or/not)
	
	1 and 2 give about 5% on closure/funcall heavy code.
	
	3-5 are improvements made possible by the screwy fixnum tag. 
	`Natural' fixnum tags would make them obsolete (but some of the
	rewrites are as good). 5 improves hash table operations up to 10%
	due to how `flags' are implemented.

1997-10-22 01:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.22): Eliminate compiler warnings.

1997-10-22 01:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxio.c (1.6): Add missing include.

1997-10-22 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.159): Implement subprocess support under
	NT.  Requires runtime 14.174 or later.

1997-10-22 01:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntutl/makefile.wcc (1.9), nt.h (1.7), ntapi.h (1.5),
	nttop.c (1.23), prosio.c (1.15), uxproc.h (1.5): Implement
	subprocess support under NT.  Requires runtime 14.174 or later.

1997-10-22 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntio.c (1.7): Extensive reworking of the "select"
	interface, so that it can work with pipes.  We no longer use the NT
	API calls, since they don't work at all with pipes; instead we use
	simpler tests and depend on the regular arrival of messages to get
	us out of the blocking state to poll the other input channels. 
	Regular message delivery is guaranteed by the asynchronous timer
	thread.

1997-10-22 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2proc.h (1.1), ntproc.c (1.1), ntproc.h (1.1):
	Initial revision

1997-10-22 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2proc.c (1.4), osproc.h (1.9), pros2io.c (1.6),
	pruxio.c (1.5), uxio.c (1.41), uxproc.c (1.21): Deprecate
	operating-system-independent interface OS_make_subprocess.  New
	interface is OS-specific, moving pecularities (e.g. converting
	unix-style argument vector to OS/2-style command line) into the
	runtime system.  New OS-independent interface
	OS_process_any_status_change.

1997-10-22 01:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntio.c (1.17), ntio.h (1.8): Add code to create
	anonymous pipes, to determine how many characters are in the pipe
	given the read end of the pipe, and to implement non-blocking mode
	when reading a pipe.  Fix OS_channel_write to generate correct
	error messages.

1997-10-22 01:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosproc.c (1.17): Change PROCESS-ID primitive to
	assume that the ID is unsigned.

1997-10-22 01:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/posixtyp.h (1.14): Define reasonable (unsigned) type
	for pid_t under NT.

1997-10-22 01:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.44): Eliminate compiler warning.

1997-10-22 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ntprm.scm (1.12), version.scm (14.174): Changes to
	support subprocesses under NT.	Requires microcode version 11.159
	or later.

1997-10-22 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: process.scm (1.19), unxprm.scm (1.47), os2prm.scm
	(1.30): Change MAKE-SUBPROCESS to define new interface to allow
	OS-specific code to do the work of starting the subprocess.

1997-10-22 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.32), edwin.pkg (1.212), edwin.ldr (1.60),
	make.scm (3.92): Use real subprocess support for NT.

1997-10-22 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.11): Use COMSPEC environment variable to
	determine shell file name if SHELL is not defined.

1997-10-21 21:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.193): Change test used to decide whether an
	unreadable file exists.  The procedure FILE-EXISTS? gives the wrong
	answer when the file is a symbolic link that points to a
	non-existent file.

1997-10-17 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/scheme32.c (1.16): Add code to synchronize the
	shutdown of the asyncronous timer thread with the deallocation of
	the associated state.  Otherwise, the race condition causes
	occasional GPFs when exiting Scheme.

1997-10-17 16:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.29): Changed consing code to
	compute the tagged pointer after storing the elements.	This
	reduces register pressure across the consing sequence.	Rearranged
	consing expression to share a common algorithm, eliminating 80
	lines of code.

1997-10-16 21:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.29): Added some comments.

1997-10-16 21:25  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.28): Changed the instruction
	sequence for procedure return (and computed jump).  The code for
	clearing the type code from a continuation now loads the value into
	a register instead of modifying it in-place on the stack.
	
	I have left the code using an indirect jump.  An alternative is to
	push the value back on the stack and do a RET.	The indirect jump
	seems faster, especially when returning to the same address as the
	previous jump, but the branch prediction mechanisms for RET and JMP
	seem quite different.
	
	Speeds up the modified Gabriel Benchmark Suite
	(/scheme/8.0/src/bench) by 10% overall!  I guess this is because
	the Pentium Pro really doesn't like the old read-modify-write
	instruction.
	
	Test	   Old	  New	Ratio ctak	11.59  11.54  0.996 conform
	   0.62   0.50	0.806 traverse	 1.57	0.92  0.586 takl       0.23
	  0.20	0.870 peval	 0.40	0.35  0.875 browse     0.59   0.56 
	0.949 tak	 0.28	0.25  0.893 wttree     1.61   1.49  0.925
	deriv	   0.34   0.29	0.853 boyer	 0.47	0.42  0.894 div    
	   0.42   0.39	0.929 dderiv	 0.44	0.38  0.864 cpstak     0.42
	  0.41	0.976 matmul1	 0.27	0.27  1.000 fib        0.68   0.55 
	0.809 fcomp	 0.61	0.54  0.885 triangle   2.89   2.36  0.817
	puzzle	   0.47   0.47	1.000 matmul2	 0.66	0.69  1.045
	destruct   0.28   0.28	1.000 ~a.mean	    -	   -  0.899 ~g.mean
	      -      -	0.892

1997-10-14 23:25  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.66): Moved open-coding of VECTOR?,
	%RECORD? and CHAR? from SF to open-coders in compiler.

1997-10-14 23:20  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/char.scm (14.7), runtime/vector.scm (14.11),
	runtime/record.scm (1.27), sf/gconst.scm (4.22), sf/usiexp.scm
	(4.38): Moved open-coding of VECTOR?, %RECORD? and CHAR? from SF to
	open-coders in compiler.

1997-10-14 21:22  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/char.c (9.32): Fix typo.

1997-10-14 21:17  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/char.c (9.31): Added primitive CHAR?

1997-10-14 20:52  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/vector.c (9.38): Added primitives VECTOR? and %RECORD?

1997-10-14 10:20  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.65): Added open-coding for
	MAKE-CELL.

1997-10-10 17:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/: dassm1.scm (1.8), dassm2.scm (1.8):
	Improved disassembly output:
	
	 - New comments to the right of LAP code, mostly the address of
	@pco
	   branches so you can see where it is jumping.
	
	 - correctly decodes the word field after a
	
		(call (entry short-primitive-apply))
	
	   rather than trying to disassemble the offset as instructions and
	   getting out of sync with the subsequent instructions.

1997-10-07 15:34  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/Makefile (1.2): use `cp -p' to preserve file times.

1997-10-07 15:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/: Makefile (1.3), Makefile (1.4): Use `cp -p' to preserve
	file times.

1997-10-07 15:29  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.16): Typo in previous change.

1997-10-07 00:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.15): Fixed so that "1/pivot" is rejected
	as a number, rather than dividing by zero.  Change: divide only if
	there is at least one denominator digit.
	
	This is not a good fix, but I need it now for some existing code. 
	The parser ought to be restructured not to compute the real part
	until it is known that the imaginary part is valid, e.g.
	
		(string->number "1/2+3")  => #F
		(string->number "1/0+3")  => error
		(string->number "1/0-transition")  => error
	
	There is a similar problem with exponent calculation:
	
		(string->number "1e9999e1")  => error
		(string->number "1e99999999e1")  => `hangs' in bignum
	primitives
	
	Of course, the difficulty with these non-numbers is probably the
	reason behind R4RS's restriction on valid identifiers.	That is
	pretty feeble, since I don't recall R4RS saying that STRING->NUMBER
	is allowed to signal an error.	Note that the current code would
	work fine in a lazy language, so a few DELAYs and FORCEs might be
	the most elegant fix (and OK effciency since FORCE is now
	compiled.)

1997-10-05 01:44  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/pcsample.c (1.5): Changed compuation of pc_in_C: with
	dynamically loaded libraries, there is no guarantee that valid C
	addressed are bounded above by _etext.

1997-10-03 03:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.16): Fix typo.

1997-10-03 02:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.40): Fix typo in previous change.

1997-10-02 16:10  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/pcs.cbf (1.2): Fix typo in instructions.

1997-10-02 15:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/scheme/tk-mit.scm (1.4): Changed %STRING-APPEND to (APPLY
	STRING-APPEND ...) because someone removed %STRING-APPEND from the
	system.

1997-10-02 15:16  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/string.scm (14.15): Fixed copyright date and Package:
	comment.

1997-10-02 00:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.39): Change M-A to work better with parameter
	lists containing uninterned symbols.

1997-10-01 20:11  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.54): Tweak output for RTL and LAP
	files to include the pretty-printed SCode.  In LAP files, make RTL
	comments more terse by printing them with ";;" rather than
	"(comment (rtl"

1997-09-29 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.40): Fix bug: marked messages that had been
	deleted from the server were remaining marked after downloading of
	message bodies.

1997-09-26 15:52  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/: graphics.scm (1.13), win32.pkg (1.10): The following
	change in how WIN32 graphics devices are flushed gives
	non-flickering update almost like double-buffering for programs
	which have to draw multiple frames from scratch.
	
	If graphics buffering is enabled, then a GRAPHICS-FLUSH operation
	comes from the user's program.	The change is to synchronously
	redraw the screen in this (i.e. buffered+flush) case.  Subsequent
	operations can clear and draw without an asynchronous redraw
	operation copying the subsequent partial image to the screen.
	
	This is not quite double-buffering since forced redisplay during
	the buffered drawing (for example, uncovering part of the window)
	will cause the partly draw backing bitmap to be copied to the
	screen.
	
	User programs with buffering and frequent explicit flushes are
	likely to be slower.

1997-08-24 00:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntio.c (1.16), ntapi.h (1.4): Fix bug: low-level file
	reading code was occasionally signalling errors for no apparent
	reason.  The cause: the ReadFile API can return an error indication
	when it is called at end-of-file.  However, in ONLY this case, the
	returned "bytesRead" value is zero.

1997-08-24 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.22): Trim any trailing end-of-line from
	system-call error strings.

1997-08-23 02:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.39): Clip ranges immediately after a group is
	constructed, in order to eliminate old markings.

1997-08-23 01:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.192): Work around problem in NT: prompting
	for a directory with a wildcard was causing an error.  On unix,
	this works because FILE-DIRECTORY? accepts such specifications as
	arguments -- but on NT, it doesn't.

1997-08-22 22:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.h (1.1): Initial revision

1997-08-22 22:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntfs.c (1.16), prntfs.c (1.13), ntapi.h (1.3):
	Eliminate several calls to the C library in favor of native Win32
	API calls.  This was started to work around a bug in the Watcom C
	library, but is generally desirable to eliminate unnecessary
	dependencies on the C library.
	
	The bug that started this is that FILE-DIRECTORY? returned #F on
	directories with the FILE_ATTRIBUTE_ARCHIVE bit set.

1997-08-22 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.8): Add new file "ntfs.h".

1997-08-22 12:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfile.c (1.10): Eliminate conditionalization on
	OS_open_append_file; this procedure compiles and runs just fine and
	probably should not have been conditionalized in the first place.

1997-08-08 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.287), parse.scm (14.28): Add switch to
	disable canonicalization of symbol case by reader.

1997-08-03 02:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.88): Fix bug in Scheme mode C-c C-s that
	could cause already-deleted buffers to be selected.  I don't
	understand why these buffers are still in this list because there
	is code to remove them.

1997-08-02 02:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.125): Don't lose if directories in
	info-directory-list are lacking the trailing slash.

1997-07-31 14:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.37): Fix bug in last change - apply
	STRING->SYMBOL to the string, not the `constant' expression
	containing the string.

1997-07-31 06:40  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.36): 7.4: Fixed STRING->SYMBOL expansion to test
	that it's argument is a constant whose value is a string rather
	than applying STRING? directly (which has been broken since it was
	added in 1992.)  Fixed INTERN likewise.
	
	8.0: treat INTERN similarly to STRING->SYMBOL: Add INTERN as a
	integrated to a global reference.  Added type rule and constant
	folding rule for intern. (This is better than constant folding at
	integration time since it deals with constant propagation.)

1997-07-28 14:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.13): The previous change to make the
	output with '(ABSOLUTE <N> ...) produce the correct number of
	digits for numbers with no significant digits introduced problems
	with NORMAL rounded and ENGINEERING formatted output.  All NORMAL
	rounded output for numbers of the form ddd.ff were being output as
	"000.".  Some numbers formatted with '(ABSOLUTE <N> ENGINEERING)
	looked like "000e-3".
	
	This has been fixed by
	
	  (1) setting the cutoff for NORMAL rounded numbers to be a value
	that
	      will allow the digit production to run to completion
	      (flo:significand-digits - 2).
	
	  (2) adding special cases in the output procedures to deal with
	empty
	      digit strings.
	
	Currently:
	
	Zero still prints as "0." by the initial sign/infinity/NaN
	dispatch.
	
	Rounded output in NORMAL style for numbers with no significant
	digits prints as "0." or "-0.".
	
	Rounded output in SCIENTIFIC / ENGINEERING style for numbers with
	no significant digits prints as "0eE" or "-0eE", e.g. "-0e3".
	
	It might be preferable to keep "0." distinguished for zero, but I'm
	not sure how for NORMAL formatted output.  (To my eyes, "0.0" looks
	more `zero' than "0.", and ".0" implies a small magnitude.)
	
	A small regression test has been appended in a comment to help
	avoid problems in future.  Feel free to add tests.

1997-07-26 03:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dragon4.scm (1.12), runtime.pkg (14.286): Provide the
	ability for a user to specify how the digits generated by the
	flonum printer are converted into a string.

1997-07-26 03:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.11): Fix another bug in the Dragon4 code
	(the bug exists in the original paper).  The bug caused the
	following behavior:
	
	    (fluid-let ((flonum-unparser-cutoff '(absolute 2 normal)))
	      (number->string 0.005))
	    ;Value 3: ".01"
	
	    (fluid-let ((flonum-unparser-cutoff '(absolute 2 normal)))
	      (number->string 0.00499))
	    ;Value 4: ".005"
	
	The problem is that in the second case the trailing digit "5"
	should not be generated.  The fix works by preventing any digits
	being output by the digit-generation loop when the first digit to
	be output would be to the right of the cutoff point.

1997-07-25 03:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.191): Reimplement encrypt-file and
	decrypt-file to eliminate the temporary storage of the plaintext in
	a buffer; this is both a security risk and an unnecessary
	limitation on the size of the file.  Also, modify the commands to
	provide more flexible handling of filenames.  Previously, only the
	input file could be specified; now both the input and the output
	can be specified, and the output is defaulted to a useful value.

1997-07-21 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.190): Fix bug in AFTER-FIND-FILE: code was
	assuming that every buffer had an AUTO-SAVE-PATHNAME.
	
	Add new commands to encrypt and decrypt files using blowfish.

1997-07-21 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: input.scm (1.99), prompt.scm (1.169): Add optional
	argument to KEYBOARD-READ which, if true, says that the key being
	read should not be recorded in the keyboard history.  This option
	is used to prevent passwords from being stored in the history.

1997-07-21 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.27): Fix bug: VC was causing a local binding of
	vc-mode-line-status to appear in every buffer, when it should only
	be bound in buffers under version control.

1997-07-21 00:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autosv.scm (1.32): Fix bug: auto-save initialization was
	not looking for a local binding of the variable auto-save-default.

1997-07-21 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.143): Don't use alternate pathnames when
	writing files; only when reading.

1997-07-20 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.14): Fix bug: end index in substring is
	exclusive, not inclusive.  Repaginate.

1997-07-18 00:03  Stephen Adams <adams@zurich.ai.mit.edu>

	* cref/redpkg.scm (1.10): Changed error for non-root access to a
	warning, so at least we can get a .crf file output.

1997-07-17 23:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.43): Changed FIXNUM->FLONUM back to using
	cast.
	
	I don't understand why the last change was made -- the cast should
	have worked, since arg_fixnum() returns a long.  Perhaps I blew it
	and tested it on 8.0 and just happen to have fixed the real problem
	at about the same time.

1997-07-15 22:51  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.27): Conditionalize fixnum dependency for
	allow single file for 7.4 and 8.0

1997-07-15 22:40  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/purify.c (9.57): Changed TC_TRUE to TC_CONSTANT in
	comment

1997-07-15 22:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: fasl.h (9.37), const.h (9.44), gctype.c (9.33):
	Changed TC_TRUE to TC_CONSTANT

1997-07-15 22:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/lookup.h (9.50): Changed TC_TRUE to TC_CONSTANT.

1997-07-15 22:37  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fasload.c (9.83): Conditionalized EMPTY_LIST_VALUE
	code.

1997-07-15 22:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: types.h (9.36), debug.c (9.49), load.c (9.38),
	interp.c (9.88), gccode.h (9.55): A hack: Introduced macro
	
		case_TC_FIXNUMs
	
	for generating case labels for selecting fixnums, whether there are
	one or two typecodes.  This tidies up the support in the 8.0
	sources for eitehr case, and allows more files to be shared between
	7.4 and 8.0

1997-07-15 21:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/boot.c (9.99): Conditionalized EMPTY_LIST
	initialization for code sharing between 7.4 and 8.0.

1997-07-15 19:26  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/types.h (9.35): Moved GLOBAL_ENV to sdata.h.

1997-07-15 18:54  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/boot.c (9.98): Merged in changes to make 7.4 and 8.0
	more alike.

1997-07-15 18:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.17): Fixed the trap debugging primitive
	INSTRUCTION-ADDRESS->COMPILED-CODE-BLOCK to handle integer
	arguments correctly.

1997-07-15 18:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/object.h (9.47): Add ADDRESS_HEAP_P to match existing
	predicate ADDRESS_CONSTANT_P

1997-07-15 17:34  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/memmag.c (9.64): file: purify.c file: bchmmg.c file:
	memmag.c
	
	Define EMPTY_WEAK_CHAIN for use in terminating the weak chain
	rather that EMPTY_LIST.
	
	This allows purify.c, bchmmg.c and memmag.c to be shared by 7.4 and
	8.0.

1997-07-15 16:57  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/purify.c (9.56): Eliminate NT compiler warning.

1997-07-15 14:22  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/object.scm (4.8): Update copyright date.

1997-07-15 13:54  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/toplev.scm (4.14): Small changes to allow butils.scm to be
	shared between 7.4 and 8.0

1997-07-15 13:29  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.15): Merge 7.4 and 8.0 versions on
	scomb.scm
	
	Changed UNDEFINED-CONDITIONAL-BRANCH to be UNSPECIFIC directly,
	rather than trying to reconstruct the same machine-dependent
	bit-pattern.

1997-07-15 12:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.285), infutl.scm (1.59): Change to get
	rid of minor difference between 7.4 and 8.0 versions of unpars.scm:
	
	Renamed   COMPILED-ENTRY/FILENAME	->
	COMPILED-ENTRY/FILENAME-AND-INDEX   COMPILED-CODE-BLOCK/FILENAME   
	 -> COMPILED-CODE-BLOCK/FILENAME-AND-INDEX

1997-07-15 12:05  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/gconst.scm (4.21), compiler/machines/i386/dassm1.scm (1.7):
	Merged 7.4 and 8.0 udata.scm files.  (Main benefit is the much
	faster compiled version of FORCE).
	
	Removed FORCE from integrated primitives.
	
	Added COMPILED-CODE-BLOCK/MARKED-START which returns the index that
	COMPILED-CODE-BLOCK/CONSTANTS-START used to. 
	COMPILED-CODE-BLOCK/CONSTANTS-START now parses over the linkage
	section.
	
	Changed i386 disassembler to use COMPILED-CODE-BLOCK/MARKED-START.

1997-07-15 01:16  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.284): Merged the 7.4 and 8.0 versions of
	string.scm now that INDEX-FIXNUM? is open-coded by both compilers. 
	Moved string.scm into a new package (runtime string).

1997-07-15 01:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.42): Use FIXNUM_TO_DOUBLE rather than a
	cast.  Casting a fixnum to a double fortuitously worked under 8.0
	with `native' fixnum tags but didn't work under 7.4.

1997-07-14 22:59  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/rules2.scm (1.8),
	compiler/rtlgen/opncod.scm (4.64), compiler/rtlopt/rinvex.scm
	(1.8), compiler/rtlopt/rcse1.scm (4.23),
	compiler/rtlbase/rtlcon.scm (4.28),
	compiler/machines/spectrum/rules2.scm (4.14),
	compiler/machines/C/rules2.scm (1.2), microcode/liarc.h (1.13):
	Added open-coding for the primitive INDEX-FIXNUM?

1997-07-14 20:49  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/gconst.scm (4.20): Added INDEX-FIXNUM? as integrated constant.

1997-07-14 15:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/wabbit.c (1.6): Made previos chaneg work under 7.4 and
	8.0

1997-07-14 13:59  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/wabbit.c (1.5): Use EMPTY_WEAK_CHAIN for weak pair
	chain instead of EMPTY_LIST.

1997-07-13 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.60): Initialize number parser.

1997-07-10 23:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.44): Changed INT:->INEXACT to use
	INTEGER->FLONUM and FIXNUM->FLONUM, now that INTEGER->FLONUM has
	been fixed to work correctly.  Note that the 8.0 compiler can
	open-code FIXNUM->FLONUM.

1997-07-10 05:16  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.13): Bug fixes:
	
	  . "1/"  returns #F instead of signalling divide by zero.
	
	  . "1.2345e-306" and "1e-400" with FLONUM-PARSER-FAST? true no
	longer
	     signal arithmetic errors.
	
	  . STRING->NUMBER and SUBSTRING->NUMBER now check their arguments
	
	Other changes: FINISH-REAL now exploits the fact that some integers
	have exact floating point representations and so flonum arithmetic
	can be used to compute the correct result.  Note that to maintain
	correctness, i*10^-e must be calculated as i/10^e.  The results are
	a modest improvement on free-formatted random flonums (typically 16
	digit) in the range 1e-7 to 1e35:
	
	Times for 10000 flonums generated by (random range)
	
	range	1e-100	1e-10	1e-5	1.	1e5	1e10	1e35   
	1e40 old	10180	8200	8210	7490	5610	3970   
	3990	4030 new	10280	8350	4690	4390	3930   
	3230	3180	4170
	
	With FLONUM-PARSER-FAST? true, using the division trick gives
	better error rates over a larger range.  Number of errors in 10000
	random flonums
	
	range	1e-20	1e-10	1e-6	1.	1e10	1e20	1e35   
	1e40 old	3573	2400	3309	2798	3025	 685	
	722    2730 new        2594    2778    1907    1010	761	685
	    772    2730

1997-07-10 02:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/instance.scm (1.7): Fix a couple of typos.

1997-07-09 10:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/udata.scm (14.18): Implemented FORCE as a compiled
	procedure.  SF no longer integrates FORCE as a primitive procedure.
	
	There is a minor bootstrapping problem with the standard build
	scripts since any pre-existing version of SF will integrate the
	primitive FORCE, and SF is only run on files that have changed.  A
	solution is:
	
	    1. rebuild the system
	    2. remove any .bin files that call FORCE
	    3. rebuild the system using bands produced in step 1.
	
	Timings under Scheme 8.0 on plex:
	
		Test	Primitive	Compiled
		 [1]	 10370ms	  560ms
		 [2]	   180ms	  130ms
		 [3]	   440ms	  270ms
	
	(let ((nums (list->stream (make-initialized-list 100001
	identity-procedure)))	    (primes	   ((access
	make-prime-numbers-stream (->environment '(runtime stream))))))  
	(show-time (lambda () (stream-ref nums 100000)))    ; [1]  
	(show-time (lambda () (stream-ref nums 100000)))    ; [2]  
	(show-time (lambda () (stream-ref primes 1000))))   ; [3]

1997-07-08 15:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/bignum.c (9.46): Changed bignum_to_double to produce a
	correctly rounded result.  The code is a lot hairier since it
	implements IEEE style round to even, but it is not much slower than
	the old `accumulate' loop since it rarely has to look at more that
	two or three words.
	
	The new version no longer signals an floating point overflow error
	on
	
		(INTEGER->FLONUM (- (EXPT 2 1024) 1) #b10)
	
	This means that (INTEGER->FLONUM N #b10) can again be used for
	computing EXACT->INEXACT on exact integers, which should be 5-15x
	faster.
	
	There were several places which has a loop to find the bit position
	of the most significant bit in a word.	This code has been
	converted into a macro, and tweaked to be a bit faster.  Presumably
	some machines have this operation as an instruction.

1997-07-08 02:25  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/artutl.c (1.15): Change integer_length_in_bits to
	return a fixnum if possible.

1997-07-08 02:04  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.43): Speed up RATIO->FLONUM and
	INT:->INEXACT by using (INTEGER->FLONUM N #b11) when N is small
	enough that it has an `exact' flonum representation.  A prior log
	message comments on this, but the code does not seem to take
	advantage.
	
	DISCUSSION:
	
	Question:  why is (INT:->INEXACT N) not simply (INTEGER->FLONUM N
	#b10) ?
	
	(EXACT->INEXACT (expt 2 3000)) used to fail in INTEGER->FLONUM, but
	now it returns MAXDOUBLE (due to ldexp), but an Infinity or an
	error would seem better.
	
	R4RS says: If an exact argument has no reasonably close inexact
	equivalent, the a violation of an implementation restriction may be
	reported.
	
	I would read this as NOT returning MAXDOUBLE as, say, 2^3000 is not
	`reasonably close' to any FP number.
	
	A previous log entry says INTEGER->FLONUM does not round reliably. 
	This is because bignum_to_double in "bignum.c" accumulates, which
	may cause error due to intermediate rounding.
	
	Perhaps bignum_to_double should be changed to extract the top 53
	bits and explicitly calculate the exponent; another test would be
	required in place of bignum_fits_in_word_p, which does not (and
	should not) understand rounding carry.	Currently, calling
	bignum_to_double on
	
		(- (expt 2 1024) 1)
	
	signals a floating point overflow or returns an infinity depending
	on which FPU exceptions are enabled.
	
	If bignum_to_double was fixed it could be a lot faster than all the
	current bignum arithmetic.

1997-07-07 23:07  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.41): Fixed thinko in FIXNUM->FLONUM.

1997-07-07 21:22  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.42): Changes in INT:->STRING to improve
	performance.  30% faster for huge bignums (10^1000), up to 2x-3x
	faster for small bignums (up to 10^100), slightly faster for
	fixnums.
	
	 . Use a local version of DIGIT->CHAR since we don't need to check
	the
	   radix.
	
	 . PRINT-FIXNUM modified to be useful for generating digits in the
	   middle of a number.
	
	 . PRINT-MEDIUM and PRINT-LARGE work in units of several digits,
	the
	   length of a unit pre-computed so that a unit can be printed
	using
	   fixnum arithmetic.
	
	 . PRINT-MEDIUM chops off groups of digits that can be printed by
	   PRINT-FIXNUM.  The microcode primitive LISTIFY-BIGNUM is no
	longer
	   used.
	
	 . PRINT-LARGE has a special check to try to avoid the last
	multiply
	   in building the power stack (which is asymptotically 2/3 of the
	   cost of building the stack).  The recursion termination check is
	   generalized to also catch sequences of digits with enough
	leading
	   zeroes to be formatted by PRINT-FIXNUM (this can double the
	speed
	   of printing numbers with many zeros).

1997-07-07 16:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.41): Changes in INT:->STRING to improve
	performance.  30% faster for huge bignums (10^1000), up to 2x-3x
	faster for small bignums (up to 10^100), slightly faster for
	fixnums.
	
	 . Use a local version of DIGIT->CHAR since we don't need to check
	the
	   radix.
	
	 . PRINT-FIXNUM modified to be useful for generating digits in the
	   middle of a number.
	
	 . PRINT-MEDIUM and PRINT-LARGE work in units of several digits,
	the
	   length of a unit pre-computed so that a unit can be printed
	using
	   fixnum arithmetic.
	
	 . PRINT-MEDIUM chops off groups of digits that can be printed by
	   PRINT-FIXNUM.  The microcode primitive LISTIFY-BIGNUM is no
	longer
	   used.
	
	 . PRINT-LARGE has a special check to try to avoid the last
	multiply
	   in building the power stack (which is asymptotically 2/3 of the
	   cost of building the stack).  The recursion termination check is
	   generalized to also catch sequences of digits with enough
	leading
	   zeroes to be formatted by PRINT-FIXNUM (this can double the
	speed
	   of printing numbers with many zeros).

1997-07-04 12:02  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/bignum.c (9.45): In bignum_remainder, replaced special
	case for remainder by `1' with a special case for remainder by
	small power of two.

1997-07-03 17:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.10): Performance enhancements:
	
	1. Changed DRAGON4-FIXUP to use fast scaling similar to described
	in    Burger and Dybvig (reference in file).  This makes an order
	of    magnitude difference for unparsing flonums with large
	exponents.
	
	2. Changed DRAGON4 to pass exponent to DRAGON4-FIXUP for scaling   
	estimate.
	
	3. Systematically replaced calls to generic operators with calls to
	   int: variants (and rat:expt).  The vast majority of operations
	are    on bignums.  Gives a gain of about 20%.
	
	Timings (Non-GC runtime) in msec for 1000 calls on 200Mhz Pentium
	Pro.
	
		Example Number		Original	Fast Scaling	and
	INT:ops
	
		3.141592653589793	840		820		580
		1022.			320		300		230
		1.234e300		4870		490		400
		1.23456e-300		7130		680		540
	
	It is still pretty sad that you can format only a few thousand
	numbers per second.
	
	PC-sampling shows that most of the time is spent as follows:
	
	 (27% primitive 253 "INTEGER-MULTIPLY")
	 (24% primitive 200 "GARBAGE-COLLECT")
	 (24% primitive 248 "INTEGER-DIVIDE")
	 (5%. primitive 260 "INTEGER-SUBTRACT")

1997-07-03 03:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.38): Make sure that RMAIL variables are
	initialized before they are used.

1997-06-27 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/method.scm (1.10): Fix bug introduced by last change.

1997-06-27 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.68): Toe the current ideological line.

1997-06-26 19:40  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/string.scm (14.14): Fixed a bug in argument checking
	SUBSTRING.  Introduced GUARANTEE-SUBSTRING and edited other
	procedures to use it.

1997-06-26 18:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/string.scm (14.13): Fixed a bug in argument checking
	SUBSTRING.  Introduced GUARANTEE-SUBSTRING and edited other
	procedures to use it.

1997-06-26 03:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.21): Don't use the external Scheme DLL any
	more.  This is important for the moment as I have not yet figured
	out how to make working DLLs with the new Watcom compiler. 
	However, the Scheme DLL probably doesn't matter any more as we no
	longer care about Windows 3.1.

1997-06-26 03:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttrap.c (1.14): Watcom 11: use __try/__except for new
	version of Watcom compiler, as it is now fixed and works properly.

1997-06-26 02:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: lookup.c (9.56), bintopsb.c (9.67), utils.c (9.72),
	ntsys.h (1.7), ntsys.c (1.8), ntgui.c (1.20), ntfs.c (1.15),
	ntenv.c (1.16), hooks.c (9.57): Watcom 11: eliminate compiler
	warning.

1997-06-26 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.7): Watcom 11: various changes.

1997-06-26 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/scheme32.lnk (1.2): Watcom 11: needs kernel and
	user librarys named explicitly now.

1997-06-26 02:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/scheme32.c (1.15): Change for Watcom 11:
	documentation claims that 0 is not a valid value for the stack-size
	parameter to beginthreadx.

1997-06-25 03:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.26): Change RCS-FIND-DELTA to have an extra
	argument saying whether or not to signal an error if there is no
	such delta.  Use this feature to make VC-NEXT-ACTION do the right
	thing when it is given a version number that doesn't exist.

1997-06-25 03:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rcsparse.scm (1.3): Change RCS-FIND-DELTA to have an extra
	argument saying whether or not to signal an error if there is no
	such delta.

1997-06-25 02:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/method.scm (1.9): Allow computed methods to return concrete
	methods as well as procedures, provided that the returned method's
	specializers are restrictions of the computed method's
	specializers.

1997-06-25 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/slot.scm (1.6): Delete accessor slot properties after they
	are used.  This prevents them from holding on to the generic
	procedures, and from defining identical methods for each subclass.

1997-06-25 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.8): Fix typo.

1997-06-25 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/sos.pkg (1.7): Fix think-o.

1997-06-24 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/instance.scm (1.6): Allow INSTANCE-PREDICATE to take a
	specializer as an argument rather than just a class.

1997-06-24 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.7): Error-check arguments to MAKE-CLASS.  Make
	sure that dispatch tag of record-type class is correct.

1997-06-24 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.6): Allow record types to be used in place of
	classes wherever sensible.

1997-06-24 23:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/: class.scm (1.5), sos.pkg (1.6): Signal
	CONDITION-TYPE:NO-SUCH-SLOT when given an invalid slot name.

1997-06-24 23:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/slot.scm (1.5): Signal CONDITION-TYPE:NO-SUCH-SLOT when given
	an invalid slot name.

1997-06-24 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: recslot.scm (1.3), record.scm (1.26), runtime.pkg
	(14.283): Add CONDITION-TYPE:NO-SUCH-SLOT and modify record code to
	signal this error when given an invalid slot name.

1997-06-24 01:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: recslot.scm (1.2), make.scm (14.59), runtime.pkg
	(14.282): Modify %RECORD-ACCESSOR to signal an error if the
	accessed slot is uninitialized.

1997-06-19 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/method.scm (1.8): SPECIALIZER=? was not handling the case of
	mixed arguments properly.

1997-06-19 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/method.scm (1.7): Eliminate UNION-SPECIALIZER=? and
	UNION-SPECIALIZER-CLASSES.

1997-06-19 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.31): Add option to allow user to specify a
	different name for the type descriptor.

1997-06-19 17:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/method.scm (1.6): Eliminate UNION-SPECIALIZER=? and
	UNION-SPECIALIZER-CLASSES.

1997-06-19 17:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/sos.pkg (1.5): Eliminate UNION-SPECIALIZER=? and
	UNION-SPECIALIZER-CLASSES.

1997-06-19 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/slot.scm (1.4): Eliminate unused definition.

1997-06-19 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/: method.scm (1.5), sos.pkg (1.4), class.scm (1.4): Add
	procedure SPECIALIZER-CLASSES.

1997-06-19 16:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/class.scm (1.3): SUBCLASS? must allow its second argument to
	be any specializer.

1997-06-19 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntfile.c (1.9), ntio.c (1.15), ntio.h (1.7): Fix bug:
	microcode was forgetting about file being opened when it ran out of
	channel-table entries.	This left the file locked until Scheme was
	exited.
	
	Additionally, the size of the channel table has been increased, and
	the number of allowable handles set to its maximum value.

1997-06-19 01:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntfs.c (1.12): When trying to get information about a
	file, if we get permission denied, try again using the directory
	reader.  Some files, e.g.  "\pagefile.sys", cannot be interrogated
	in the normal fashion, but are given in a directory listing.  (More
	quality software design.)
	
	In SET-FILE-TIMES!, temporarily disable the read-only bit if it is
	enabled, as this prevents the primitive from completing
	successfully.

1997-06-19 01:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.30): Ignore the mouse click that
	activates a window.

1997-06-18 03:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.37): Fix two bugs in article-posting code.

1997-06-18 03:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.36): Make sure that all article ranges are
	clipped when the group is updated.

1997-06-17 04:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/slot.scm (1.3): Change slot-option merging code so that
	INITIAL-VALUE and INITIALIZER shadow each other properly.

1997-06-17 04:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/slot.scm (1.2): Change slot-option merging code so that
	INITIAL-VALUE and INITIALIZER shadow each other properly.

1997-06-17 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.3): Add code to compute MD5 checksum for
	a file; to convert a checksum to either a number or a hex string;
	and to encrypt a substring.

1997-06-17 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prbfish.c (1.3): Add primitive that accepts input as a
	substring rather than a string.

1997-06-17 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prmd5.c (1.3): Add new primitives to simplify writing
	code to perform MD5 checksum on arbitrary-length streams.

1997-06-16 05:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/load.scm (1.3): Changes to interface and semantics of
	INSTANCE-CONSTRUCTOR.

1997-06-16 05:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/method.scm (1.4): Now that MAKE-METHOD calls
	INITIALIZE-INSTANCE, it is necessary to provide a default EMP for
	INITIALIZE-INSTANCE until the default method is installed.  This is
	done by means of the runtime system's default EMP kludge.

1997-06-16 04:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/: instance.scm (1.5), macros.scm (1.6): Extensive revamp of
	INSTANCE-CONSTRUCTOR.  Optional argument now specifies how many
	additional arguments the constructor accepts; the additional
	arguments are passed to INITIALIZE-INSTANCE.  By default, any
	number of additional arguments are accepted and passed.

1997-06-15 03:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.5): Modify the CONSTRUCTOR class option to
	DEFINE-CLASS to allow it to specify the CALL-INIT-INSTANCE?
	argument to INSTANCE-CONSTRUCTOR.

1997-06-15 02:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/: instance.scm (1.4), method.scm (1.3), sos.pkg (1.3):
	Implement support for INITIAL-VALUE slot keyword.  Add new generic
	procedure INITIALIZE-INSTANCE, and give INSTANCE-CONSTRUCTOR and
	optional boolean argument that, if true, says to call
	INITIALIZE-INSTANCE on the instance before it is returned.

1997-06-14 23:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.cmn (1.10): Add blowfish and MD5
	support.

1997-06-14 03:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.35): Fix bug that could cause SEGV when
	downloading article bodies.

1997-06-13 21:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.24): Fix typo.

1997-06-13 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.151.1.4): Update cmpauxmd/i386.m4 to
	revision 1.47.

1997-06-12 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.40), runtime.pkg (14.281): Add definition
	for SQUARE.

1997-06-12 03:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.4): Fix bug: when CALL-NEXT-METHOD used in
	DEFINE-METHOD, the generated code was using old calling
	conventions.

1997-06-12 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/compile.scm (1.2): Move COMPILE-FILE into the compiler
	proper.

1997-06-12 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/toplev.scm (4.53), machines/i386/compiler.pkg
	(1.23), machines/spectrum/compiler.pkg (1.48): Add COMPILE-FILE
	incremental file compilation procedure.

1997-06-11 03:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.3): Fix bug: predicate not being generated when
	other class options given.

1997-06-10 01:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.53): Fix bug: Scheme variable completion was
	failing in some cases because the completion code was unable to
	obtain the correct environment in which to look up the variables.

1997-06-09 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prmd5.c (1.2), prbfish.c (1.2): Fix typo.

1997-06-09 04:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.40), unix.scm (1.79): Add support for
	Blowfish.

1997-06-09 04:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/blowfish.scm (1.2): Add procedure to test for
	availability of Blowfish primitives.  Modularize ciphertext-file
	support.

1997-06-09 03:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ed-ffi.scm (1.17), runtime.pkg (14.280): Add interfaces
	to MD5 and Blowfish.

1997-06-09 03:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prmd5.c (1.1), microcode/prbfish.c (1.1),
	runtime/blowfish.scm (1.1): Initial revision

1997-06-06 03:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/rgxprim.c (1.12): Change regular-expression primitives
	to treat failure-stack overflow as equivalent to "no match".  Also,
	increase the maximum size of the failure stack from 1000 to 20000. 
	This is important because it is far too easy to overflow the stack,
	the stack-overflow errors cause Edwin to bomb out.  This is a
	problem because stack-overflow errors can be caused by user data --
	the proximate example being a News message that bombed out the News
	reader because it had a header line was too complicated to match. 
	Better to fail in these situations than to error.

1997-06-06 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/regex.c (1.17): Change regular-expression searches to
	treat failure-stack overflow as a failure to match, and to continue
	the search.

1997-06-06 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.77), unix.scm (1.78), os2.scm (1.39): Modify
	encrypted-file support to allow the ".ky" suffix.  This is
	desirable because mixed-case filenames cause trouble when mapping
	between unix and case-insensitive file systems.

1997-06-04 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.25): Fix thinko in
	SET-RECORD-TYPE-UNPARSER-METHOD!.

1997-06-04 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/instance.scm (1.3): Reimplement INSTANCE-PREDICATE to return
	a generic procedure.  Move INSTANCE-PREDICATE and INSTANCE-OF? to
	"instance.scm".

1997-06-04 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.9): Add SOS to list of directories needing to
	be processed.

1997-06-04 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/: sos.pkg (1.2), instance.scm (1.2), class.scm (1.2):
	Reimplement INSTANCE-PREDICATE to return a generic procedure.  Move
	INSTANCE-PREDICATE and INSTANCE-OF? to "instance.scm".

1997-06-04 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/method.scm (1.2): Eliminate references to INSTANCE-PREDICATE.

1997-06-04 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/macros.scm (1.2): Add options allowing DEFINE-CLASS to
	automatically generate predicate and constructor procedures.  By
	default, generate a predicate.

1997-06-04 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.58): Modify undigestifier so that it handles
	newer digests, e.g. the Debian mailing-list digestifier.

1997-06-04 16:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/ed-ffi.scm (1.1): Initial revision

1997-06-04 02:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/load.scm (1.2): Add line to startup banner.

1997-06-04 02:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* sos/: class.scm (1.1), compile.scm (1.1), instance.scm (1.1),
	load.scm (1.1), macros.scm (1.1), method.scm (1.1), microbench.scm
	(1.1), printer.scm (1.1), slot.scm (1.1), sos.pkg (1.1): Initial
	revision

1997-06-01 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.13): Change Linux file-system-type code to
	define explicit constants for many types.  The reason is that many
	of these types are hard to get from the headers, either due to
	versioning problems with the header files, or because the desired
	definitions are hidden behind kernel conditionalizations.

1997-05-27 15:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.34): Fix bug: news server can return #(0 0 0) as
	server-info for a news group, indicating that there are no articles
	on the server.	News reader was expecting the last two numbers to
	be article numbers, but zero is not a valid article number.

1997-05-27 03:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.33): Fix bug: news server can return #(0 0 0) as
	server-info for a news group, indicating that there are no articles
	on the server.	News reader was expecting the last two numbers to
	be article numbers, but zero is not a valid article number.

1997-05-21 14:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.38), unix.scm (1.76): Read and write .KY files
	as binary rather than text.

1997-05-21 03:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2msg.c (1.12): Fix some bugs, including an
	uninitialized-field bug for the QID_FILTER field, and an ambiguity
	in the allowable values for the end pointer of a msg_fifo.  Add a
	QID_LOCK field, and use it to control access to the QID_SUBQUEUE
	field.	Rearrange the locking slightly to make it more efficient
	and directed: the top-level qid_lock is now used only to mediate
	the QID_ALLOCATEDP and QID_TWIN fields.

1997-05-21 02:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.31): Change error-reporting procedure to
	eliminate redundant sentences for fatal errors.

1997-05-19 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.50), runtime.pkg (14.279): Reimplement
	CLOSE-ALL-OPEN-FILES to close only file channels, and also to close
	the associated port of a file channel rather than the channel. 
	Implement and export two new procedures: ALL-OPEN-CHANNELS and
	CLOSE-ALL-OPEN-CHANNELS.

1997-05-18 03:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: snr.scm (1.32), edwin.pkg (1.211): * Add new command to
	show the full subject line of an article in a	news-group buffer.
	
	* Add new command to show the full header of an article in a  
	news-group buffer.
	
	* When first unread article in a group has an associated body,
	expand	 the thread to select that article when the group is
	opened.
	
	* Change posting mechanism to use "_-_" in message-id to indicate  
	subject changes, as required by News standard.

1997-05-18 03:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.122): Change SET-BUFFER-POINT! to change the
	first window that the buffer is shown in if it is not the selected
	buffer.

1997-05-18 03:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.52): Fix bug: STRING-COLUMNS was being called
	with incorrect arguments.  Apparently this reference was missed
	when the imaging code was rewritten.

1997-05-18 03:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.103), dired.scm (1.167): Implement
	POP-UP-TEMPORARY-BUFFER, a fairly general mechanism for popping up
	temporary buffers.  Redefine several old uses of such buffers to
	use this new mechanism.

1997-05-17 02:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntscreen.h (1.15), ntscreen.c (1.29), prntio.c (1.6):
	Change NT:MSGWAITFORMULTIPLEOBJECTS to check for messages that were
	removed from the input queue and placed on one of the screen
	queues.  This eliminates a serious bug in Edwin: running an
	asynchronous evaluation that did no output would cause Edwin to
	lock up until the evaluation completed.

1997-05-14 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/graphics.scm (1.12): Add ability to specify custom color
	palette when creating a window.

1997-05-14 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/graphics.scm (1.11): Add generic operation to determine the
	bit-depth of an image associated with a window.

1997-05-14 20:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.278): Add X-specific operation to return
	the visual-info data structures for a display, and a structure
	definition for these structures.

1997-05-14 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.277): Add X-specific operation to return
	the visual-info data structures for a display, and a structure
	definition for these structures.

1997-05-14 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2graph.scm (1.13): Add generic operation to determine
	the bit-depth of an image associated with a window.

1997-05-14 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.46): Add generic operation to determine
	the bit-depth of an image associated with a window.  Add X-specific
	operation to return the visual-info data structures for a display,
	and a structure definition for these structures.

1997-05-14 20:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.38): Modify X image procedures to support
	images with depths greater than 8 bits.  Add documentation strings
	to all of the image primitives.

1997-05-13 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/dibutils/: dibutils.lbc (1.1), dibutils.lnk (1.1),
	makefile.wcc (1.1): Initial revision

1997-05-13 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/dibutils/: dibutils.h (1.3), dibutils.c (1.3): Add "FAR
	WINAPI" declarations to the functions exported from this DLL, so
	that the Watcom compiler will compile them using the calling
	conventions that Scheme is expecting.

1997-05-11 02:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.c (1.11), os2msg.h (1.14), os2cthrd.h (1.6),
	os2cthrd.c (1.9), os2pmcon.c (1.23), os2conio.c (1.9): Two changes
	to improve inter-thread message-transmission performance:
	
	1. Eliminate "msg_list_t" type and implement a fifo abstraction
	that	is powerful enough to support the previous applications of
	message    lists.  This eliminates the calls to malloc and free
	that were    needed to build the lists, and replaces them by an
	aggregate,    amortized cost.
	
	2. When transmitting a message for which a receiving thread is	 
	waiting, call DosSleep to give up the rest of the transmitting	 
	thread's time slice, so that the receiving thread will run as soon 
	  as possible.

1997-05-06 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttrap.c (1.13): Don't use try...except exception
	handling with Watcom compiler.	Instead use
	SetUnhandledExceptionFilter.

1997-05-05 03:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.11): Add an option to disable dld support,
	since the Red Hat Linux we are running on the action machines
	doesn't seem to support it, while the Debian Linux we're running on
	everything else does.

1997-05-05 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.10): Unknown change implemented by adams.

1997-05-05 02:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.47): Fix bug: scheme_to_interface
	must clear the floating-point register stack.  Otherwise,
	inexplicable floating-point errors can occur.  An example of such
	an error can be created by typing `-1e-194' at a freshly-booted
	scheme.
	
	The actual problem is somewhat involved.  The C compiler assumes
	that all of the floating-point registers are empty on the entry to
	any procedure.	As a consequence of this assumption, it feels free
	to use all 8 of the registers.	However, if this assumption is
	violated, a C procedure that uses too many registers will signal a
	floating-point stack overflow.
	
	However, the Scheme compiler does not follow this convention; more
	precisely, since it was originally designed to use reasonable
	floating-point hardware, in which the floating-point registers are
	organized as a bank of registers rather than a stack, it doesn't do
	anything about popping registers when it is done with them.  As a
	consequence, floating-point operations generated by the Scheme
	compiler often leave values on the floating-point stack.
	
	To work around this without redesigning the compiler, the
	compiled-code interface clears out the stack whenever it transfers
	between C and Scheme code.  The bug fixed by this revision was a
	transfer point that did not have code to clear out the stack.

1997-05-03 04:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.39): Fix thinko: INTEGER-ROUND was doing
	round-to-odd instead of round-to-even.

1997-05-02 01:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.12): Fix stupid typo in previous change.

1997-05-02 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.38): Fix incredibly stupid think-o in
	previous change.

1997-04-30 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.20): Changes needed to get PTY subprocesses
	working under BSDI.

1997-04-30 21:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.151.1.3): Changes to support BSDI and
	FreeBSD.

1997-04-30 21:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.67): Fix think-o in previous change.

1997-04-30 21:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.92): Customize properly for POSIX,
	eliminating unnecessary prototype for "lseek", which has been
	causing problems on some BSD systems.

1997-04-30 21:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.46): Don't use ** operator, because
	it isn't recognized on some of the BSD versions of m4.	Use <<
	instead.

1997-04-30 21:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtop.c (1.20): Disable declarations for sys_errlist
	and sys_nerr except where needed.  Most systems define these
	nowadays.

1997-04-30 21:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: oscond.h (1.23), ux.h (1.66): Customize for BSDI and
	FreeBSD.

1997-04-28 03:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intprm.c (1.7): Add new primitive LIST->INTEGER.

1997-04-28 03:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.37): Optimize the change implemented in the
	previous revision, as it had a serious impact on performance.

1997-04-28 01:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.36): Change method used by EXACT->INEXACT on
	integers.  It turns out that the old method, the INT:->FLONUM, does
	not round reliably, and as a consequence the LSB of the result is
	sometimes wrong.  However, the conversion performed by
	INTEGER->FLONUM is accurate provided that the integer being
	converted can be exactly represented by a flonum, i.e.	for IEEE
	double-precision floats, an integer with magnitude less than (EXPT
	2 53).
	
	The algorithm used to convert ratnums to flonums already has this
	property, so the integer conversion has been changed to use it.

1997-04-28 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.11): Fix two bugs: (1) parser was not
	recognizing radix prefixes when STRING->NUMBER called with an
	explicit radix argument; and (2) parser not allowing exponents
	without an explicit sign.

1997-04-24 02:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: numpar.scm (14.10), runtime.pkg (14.276): Complete
	reimplementation of the number parser.	New parser is 3.5 times as
	fast as the old one (see data below), and includes the contribution
	due to the improved EXACT->INEXACT.
	
	New switch FLONUM-PARSER-FAST? allows the number parser to
	sacrifice accuracy for performance, and gains another factor of 2.4
	in performance on flonums.
	
	-------------------------------------------------------------------
	--- Tests performed with a list of 100000 randomly-generated
	strings.  The strings were generated by "test-numpar.scm", which
	implements the R4RS number BNF, so the strings are arbitrary
	numeric syntax.
	
	This is a test of general number-reading performance.
	
	Results for old exact->inexact and old string->number:
	
	    process time: 9690 (9060 RUN + 630 GC); real time: 9690
	    process time: 9460 (8830 RUN + 630 GC); real time: 9458
	    process time: 9450 (8820 RUN + 630 GC); real time: 9451
	    process time: 9460 (8830 RUN + 630 GC); real time: 9456
	
	    average real time: 9514 msec
	
	Results for new exact->inexact and new string->number:
	
	    process time: 2800 (2800 RUN + 0 GC); real time: 2800
	    process time: 2790 (2790 RUN + 0 GC); real time: 2786
	    process time: 2700 (2700 RUN + 0 GC); real time: 2703
	    process time: 2680 (2680 RUN + 0 GC); real time: 2686
	
	    average real time: 2744 msec
	
	Average improvement is a factor of 3.5 in speed.

1997-04-24 01:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.16): Workaround: Linux doesn't seem to
	record Scheme-program execution time as "user" process time, so
	change process-time clock to count both "user" and "system" time. 
	Normally only "user" time counts.

1997-04-23 03:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.173): Dramatically improve the
	performance of EXACT->INEXACT on ratnums and (EXPT 2 x).  Slightly
	improve INTEGER-ROUND.	These changes require two new primitives
	implemented in microcode 11.158.
	
	Here are the results for EXACT->INEXACT.  These tests were run by
	calling EXACT->INEXACT on a list of 100000 randomly-generated
	ratnums.  The numerator and denominator were each chosen using a
	modulus of (EXPT 2 64), discarding zero denominators and integer
	quotients.
	
	The machine was a dual Pentium Pro 200MHz / 512kB cache, 128MB RAM,
	running SMP Linux 2.0.26 and libc 5.4.20.  Scheme was run using the
	runtime.com band and a heap of 4000.  The machine was otherwise
	quiescent.
	
	Results for old EXACT->INEXACT:
	
	    process time: 1750 (1470 RUN + 280 GC); real time: 37350
	    process time: 1000 (780 RUN + 220 GC); real time: 37359
	    process time: 900 (900 RUN + 0 GC); real time: 37345
	    process time: 2460 (2060 RUN + 400 GC); real time: 37370
	
	    average real time: 37356 msec
	
	Results for new EXACT->INEXACT:
	
	    process time: 580 (580 RUN + 0 GC); real time: 5825
	    process time: 240 (240 RUN + 0 GC); real time: 5480
	    process time: 910 (910 RUN + 0 GC); real time: 5450
	    process time: 840 (540 RUN + 300 GC); real time: 5770
	
	    average real time: 5631 msec
	
	Average improvement is a factor of 6.6 in speed.

1997-04-23 03:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.35): Dramatically improve the performance of
	EXACT->INEXACT on ratnums and (EXPT 2 x).  Slightly improve
	INTEGER-ROUND.	These changes require two new primitives
	implemented in microcode 11.158.
	
	Here are the results for EXACT->INEXACT.  These tests were run by
	calling EXACT->INEXACT on a list of 100000 randomly-generated
	ratnums.  The numerator and denominator were each chosen using a
	modulus of (EXPT 2 64), discarding zero denominators and integer
	quotients.
	
	The machine was a dual Pentium Pro 200MHz / 512kB cache, 128MB RAM,
	running SMP Linux 2.0.26 and libc 5.4.20.  Scheme was run using the
	runtime.com band and a heap of 4000.  The machine was otherwise
	quiescent.
	
	Results for old EXACT->INEXACT:
	
	    process time: 1750 (1470 RUN + 280 GC); real time: 37350
	    process time: 1000 (780 RUN + 220 GC); real time: 37359
	    process time: 900 (900 RUN + 0 GC); real time: 37345
	    process time: 2460 (2060 RUN + 400 GC); real time: 37370
	
	    average real time: 37356 msec
	
	Results for new EXACT->INEXACT:
	
	    process time: 580 (580 RUN + 0 GC); real time: 5825
	    process time: 240 (240 RUN + 0 GC); real time: 5480
	    process time: 910 (910 RUN + 0 GC); real time: 5450
	    process time: 840 (540 RUN + 300 GC); real time: 5770
	
	    average real time: 5631 msec
	
	Average improvement is a factor of 6.6 in speed.

1997-04-23 03:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.158): New primitives to support faster
	conversion of ratnum to flonum.

1997-04-23 01:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.44), artutl.c (1.14), bignum.h (9.30),
	intprm.c (1.6), extern.h (9.55): Add new primitive
	INTEGER-SHIFT-LEFT.  This is a very fast way to multiply an integer
	by a power of two.

1997-04-22 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: artutl.c (1.13), extern.h (9.54), intprm.c (1.5):
	Implement new primitive INTEGER-LENGTH-IN-BITS.  This computes the
	length of a non-negative integer in the obvious way; it computes
	the length of a negative integer by negating it and then returning
	the value for the positive equivalent.
	
	This primitive can be used to greatly speed up the conversion of
	rational numbers to flonums.

1997-04-22 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bigprm.c (1.5): Add primitive BIGNUM-LENGTH-IN-BITS.

1997-04-20 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.6): Speed up CHAR->DIGIT and DIGIT->CHAR. 
	Also change all arithmetic to fixnum arithmetic, and reorganize
	file slightly.

1997-04-16 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.102): Add code to prompt user when killing a
	buffer that is modified or has an active process.  This is done by
	means of a variable containing a list of "query" procedures.

1997-04-11 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: manual.scm (1.14), loadef.scm (1.31): Add command M-x
	clean-manual-entry.

1997-04-05 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.31): Eliminate a few of the calls to
	NEWS-GROUP:CLOSE-DATABASE, since they have an adverse effect on
	performance.

1997-04-02 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/win32.scm (1.8): Change event-reading loop to block when
	waiting for an event while none of the Edwin windows is active. 
	This is safe because we won't get any events until one of them
	becomes active, and at that time the activation messages will cause
	a return from the block.

1997-04-02 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntscreen.h (1.14), ntscreen.c (1.28), prntio.c (1.5):
	Add conditionalized code to generate a trace file showing message
	receipt, waiting, and event fetching.  This was used to track down
	a busy-wait loop in Edwin.

1997-04-02 03:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rcsparse.scm (1.2): Don't barf when a "branch" field
	appears in the admin block.

1997-04-02 03:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.157): Rewrite Win32 (as opposed to
	Win32s) DLL to use auxiliary thread and Sleep() API call to
	generate async timer interrupts.  Use a critical section to
	synchronize the two threads' access to the interrupt registers. 
	These changes should eliminate the "spurious interrupt" error
	messages that have been showing up from time to time.

1997-04-02 02:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntutl/scheme31.c (1.9), ntsig.c (1.20), nttop.c
	(1.20), intrpt.h (1.19), ntscmlib.h (1.8), ntutl/scheme32.c (1.14):
	Rewrite Win32 (as opposed to Win32s) DLL to use auxiliary thread
	and Sleep() API call to generate async timer interrupts.  Use a
	critical section to synchronize the two threads' access to the
	interrupt registers.  These changes should eliminate the "spurious
	interrupt" error messages that have been showing up from time to
	time.

1997-04-01 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2winp.scm (1.14), microcode/os2pm.c (1.30),
	microcode/os2pm.scm (1.7), microcode/pros2pm.c (1.20): Implement
	new primitive to get at the OS/2 PM "system values".

1997-03-31 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.210), nntp.scm (1.14), snr.scm (1.30): Add
	code to close the NNTP database files after each high-level
	operation.  This is desirable on OS/2 because keeping the files
	open prevents other programs from reading them.

1997-03-31 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.34): Flush purification queue after
	loading an option.  Otherwise, if the option creates a new
	environment, and that environment has state variables, the contents
	of those state variables will be purified at the time of the next
	GC.

1997-03-31 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prgdbm.c (1.2): Replace incorrect use of stderr with
	outf_error.

1997-03-30 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/mips/rulfix.scm (1.10),
	machines/mips/lapgen.scm (1.14), base/make.scm (4.107): Fix bug in
	code generation for the HEAP-AVAILABLE? primitive.  The primitive
	compares addresses using an unsigned comparison, but the compiled
	code was using a signed comparison.  This was the cause of sporadic
	failures that have been seen while running Edwin with a large heap
	on OS/2; it could have happened on any operating system when Edwin
	was run with a sufficiently large heap.  This fix changes the
	compiled code to use an unsigned comparison.

1997-03-30 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.63), machines/i386/rulfix.scm
	(1.28), machines/spectrum/rulfix.scm (4.47): Fix bug in code
	generation for the HEAP-AVAILABLE? primitive.  The primitive
	compares addresses using an unsigned comparison, but the compiled
	code was using a signed comparison.  This was the cause of sporadic
	failures that have been seen while running Edwin with a large heap
	on OS/2; it could have happened on any operating system when Edwin
	was run with a sufficiently large heap.  This fix changes the
	compiled code to use an unsigned comparison.

1997-03-30 01:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.20): Fix bug: C-x 5 o was not causing the
	selected frame to become active.

1997-03-30 01:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.29): Eliminate error that would occur when
	updating news groups while any groups list other than the
	subscribed-groups list was being shown in a buffer.

1997-03-30 01:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.87): Make sure that evaluation buffers have
	the correct setting for the scheme-environment variable; this is
	needed so that completion will work correctly.	This was a problem
	in debugger buffers.

1997-03-20 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.151.1.2): In linux_heap_malloc, use the
	MAP_FIXED flag to force the kernel to provide the page at the given
	address.  Version 1.2 kernels ignore the "start address" argument
	if this flag is unspecified.

1997-03-20 21:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.c (1.16): In linux_heap_malloc, use the MAP_FIXED
	flag to force the kernel to provide the page at the given address. 
	Version 1.2 kernels ignore the "start address" argument if this
	flag is unspecified.

1997-03-19 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.124): Fix bug: info-directory-list should be
	allowed to contain pathnames as well as strings.

1997-03-17 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.19): Fix bug: Watcom compiler passes
	arguments in registers by default, and trick of pointing to first
	argument doesn't get pointer that points "into the stack".

1997-03-14 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.10): Backup filenames being returned for
	deletion are supposed to be fully qualified; they were not.

1997-03-10 00:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: keyparse.scm (1.2), vhdl.scm (1.4), verilog.scm (1.4),
	edwin.pkg (1.209): * Create interface to allow keyparser
	description to be built up   incrementally.  This aids in
	development and debugging of   descriptions.
	
	* Modify indentation computation so that comment lines are indented
	  properly.  Previously they were indented just like code lines.
	
	* Change definition of MATCH-HEADER so that it accepts the
	keyparser   stack as an argument.  Also open up the stack-entry
	abstraction.	These changes allow MATCH-HEADER to use contextual
	information in	  its decision-making process.
	
	* Fix some problems in the VHDL implementation.  Use new
	MATCH-HEADER   extension to distinguish two cases of FOR keyword
	that are otherwise   syntactically identical.

1997-03-10 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comatch.scm (1.3): Fix typo.  Add another combinator.

1997-03-07 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vhdl.scm (1.3): Add entry for "loop" structure.

1997-03-07 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comatch.scm (1.2), vhdl.scm (1.2): Remove evaluation
	information that is no longer accurate.

1997-03-07 18:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.59), ed-ffi.scm (1.42), edwin.ldr (1.59),
	edwin.pkg (1.208), loadef.scm (1.30), verilog.scm (1.3): Implement
	VHDL mode.  Generalize the keyword parser used by Verilog mode so
	that it is powerful enough to parse both languages.  Implement a
	high-level extensible pattern matcher to allow the VHDL indenter to
	recognize keyword contexts in cases where it is necessary.

1997-03-07 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comatch.scm (1.1), keyparse.scm (1.1), vhdl.scm (1.1):
	Initial revision

1997-03-07 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.70): Fix typo in previous revision.

1997-03-04 01:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.207): Create new data type for a compiled
	regular expression; this type contains the case-fold information
	used to compile the regexp.  Modify the low-level
	regular-expression procedures to accept this new type and to no
	longer have an argument for case-fold.	Modify the high-level
	regular-expression procedures to accept a compiled regular
	expression in place of a regular-expression string; in this case
	the optional case-fold argument is ignored.
	
	Edit all references to the low-level procedures to conform to this
	new design.

1997-03-04 01:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.19): Change to conform to new design of Edwin
	regular-expression procedures.

1997-03-04 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comhst.scm (1.5), edwin/comint.scm (1.23), edwin/debug.scm
	(1.41), edwin/dired.scm (1.166), edwin/dosfile.scm (1.9),
	edwin/edwin.pkg (1.206), edwin/fileio.scm (1.142), edwin/info.scm
	(1.123), edwin/malias.scm (1.3), edwin/manual.scm (1.13),
	edwin/occur.scm (1.3), edwin/regexp.scm (1.69), runtime/rgxcmp.scm
	(1.108), edwin/rmail.scm (1.57), edwin/rmailsrt.scm (1.9),
	edwin/rmailsum.scm (1.33), edwin/shell.scm (1.14), edwin/snr.scm
	(1.28), edwin/strtab.scm (1.45), edwin/telnet.scm (1.10),
	edwin/unix.scm (1.75), edwin/verilog.scm (1.2): Create new data
	type for a compiled regular expression; this type contains the
	case-fold information used to compile the regexp.  Modify the
	low-level regular-expression procedures to accept this new type and
	to no longer have an argument for case-fold.  Modify the high-level
	regular-expression procedures to accept a compiled regular
	expression in place of a regular-expression string; in this case
	the optional case-fold argument is ignored.
	
	Edit all references to the low-level procedures to conform to this
	new design.

1997-03-03 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lspcom.scm (1.157): Add procedure to find the start of a
	definition that a mark is in.

1997-03-03 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: syntax.scm (1.79), edwin.pkg (1.205), regexp.scm (1.68):
	Add procedure to generate regular-expression "groups" from lists of
	alternatives.

1997-02-23 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debug.scm (1.40), edwin.pkg (1.204), eystep.scm (1.4),
	info.scm (1.122), screen.scm (1.115), snr.scm (1.27): Change data
	structures and calling conventions of screen abstraction so that
	"highlighting" can specify the "face" in which the text will
	appear.  This generalization allows us to modify the terminal
	abstractions to support multiple fonts and colors.

1997-02-23 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.10): Add several new operations on
	vectors.  Eliminate unnecessary bindings.

1997-02-23 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: vector.scm (14.8), vector.scm (14.9): Add several new
	operations on vectors.	Eliminate unnecessary bindings.

1997-02-22 02:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.7): Add several new operations on vectors.
	 Eliminate unnecessary bindings.

1997-02-21 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.9): Guarantee that all input ports have a
	READ-SUBSTRING operation.  Implement procedures READ-STRING! and
	READ-LINE.

1997-02-21 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.8): Guarantee that all input ports have a
	READ-SUBSTRING operation.  Implement procedures READ-STRING! and
	READ-LINE.

1997-02-21 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: port.scm (1.10), input.scm (14.18): Guarantee that all
	input ports have a READ-SUBSTRING operation.  Implement procedures
	READ-STRING! and READ-LINE.

1997-02-21 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: chrset.scm (14.5), input.scm (14.17), port.scm (1.9),
	runtime.pkg (14.275): Guarantee that all input ports have a
	READ-SUBSTRING operation.  Implement procedures READ-STRING! and
	READ-LINE.

1997-02-20 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntfs.c (1.11): Fix typo in translation of unix time
	to NT file time.

1997-02-12 03:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: scheme.h (9.37), interp.c (9.87): Move only reference
	to COMPILE_STEPPER from "scheme.h" to "interp.c", since that is the
	only file affected.  Also, the previous location of this reference
	prevented the assignment in "config.h" from being properly seen.

1997-02-12 03:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.37): Fix thinko from change to implement "krypt"
	support.

1997-02-12 03:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.9): Fix what appears to have been a thinko
	in the rounding of floating-point printed representations.  This
	fix prevents the code from diverging with certain combinations of
	numbers and rounding modes.  An example that caused this problem:
	
	(set! flonum-unparser-cutoff '(relative 4)) (/ (* 10e3 100e-15))
	
	I'm not entirely convinced I understand the problem at this point;
	I don't have a copy of the paper at hand to remind me how the
	printer algorithm works.  But the change fixes the bug, seems to
	work correctly on other test cases, and matches what my partial
	understanding says should be happening.

1997-02-08 02:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.16): Fix bug in C indentation.

1997-02-05 14:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.70): Add hack suggested by "amu@mit.edu
	(Aaron M. Ucko)" to locally bind the BackSpace key to DEL.

1997-01-25 05:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.16): Fix bug: code for make-decoded-time
	can easily signal an error when the time being represented is
	earlier than 1970 on a unix machine.  Fix allows such times to be
	represented, but without filling in day-of-week, timezone, and
	daylight-savings fields.

1997-01-22 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.49): * Fix bug in INPUT-BUFFER/DISCARD-CHAR:
	was not doing anything if the	input buffer was empty.
	
	* Change INPUT-BUFFER/READ-SUBSTRING to read a whole buffer from
	the   input channel if the required number of characters is less
	than the   size of the buffer.
	
	* Change INPUT-BUFFER/READ-SUBSTRING to continue reading from the  
	input channel until the substring is filled or the channel has no  
	more characters available.  This is a correct fix for the change  
	made in revision 14.47; this fix does a probe of the channel to  
	determine if there are any characters immediately available.   
	Previous to 14.47 the procedure might have blocked waiting for
	input	 that was not ready, even if it had already partly filled
	the    substring.  Now it will immediately return any characters
	that are    available, and block only when nothing is available.

1997-01-15 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.56): Fix call to APPEND-TO-FILE that should
	have been patched in the previous change.

1997-01-13 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.151.1.1): Put mmap modifications from
	revision 1.10 into the 7.4 release.

1997-01-10 03:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2top.c (1.18): Generalize version-number handling to
	detect IBM's continued use of version numbers such as 2.4 rather
	than 4.0.

1997-01-05 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.44): Use new directory reader to get better
	attribute information from Win32.  This requires microcode 11.156
	and runtime 14.172.

1997-01-05 18:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.43): Use new directory reader to get better
	attribute information from Win32.  This requires microcode 11.156
	and runtime 14.172.

1997-01-05 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ntprm.scm (1.11), version.scm (14.172), runtime.pkg
	(14.274): Add new file to customize Win32 directory reader.  Extend
	Win32 file attributes vector to include the mode bits.	This
	version of the runtime system requires microcode 11.156 or later.

1997-01-05 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntdir.scm (1.1): Initial revision

1997-01-05 18:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prntfs.c (1.10), version.h (11.156): Extensive
	changes to the code that gets information about files; new code is
	smarter about reading protected files.	Also add new
	directory-reading primitive to allow the runtime system to get full
	file-attribute information; this is otherwise impossible as the
	directory reader is able to get file information that the
	file-attribute calls can't.

1997-01-05 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.14): Add new procedure to get all of the
	information from the directory reader.

1997-01-05 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfile.c (1.8): Add file-opening flags that hint to the
	operating system about how to optimize file caching.

1997-01-05 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntapi.h (1.2): Add new system call.

1997-01-05 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.6): Add dependencies for ntapi.h.

1997-01-05 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.5): Add explicit dependencies to
	many of the files as wmake seems not to have this behavior.

1997-01-02 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.141): Change output procedures to ignore
	translate-file-data-on-output in some circumstances.  This is
	necessary because RMAIL files want this variable set to #F, but M-x
	write-region should ignore the variable binding in that case and do
	translation anyway.

1997-01-02 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.140), autosv.scm (1.31), filcom.scm
	(1.189), rmail.scm (1.55), sendmail.scm (1.35): Change output
	procedures to ignore translate-file-data-on-output in some
	circumstances.	This is necessary because RMAIL files want this
	variable set to #F, but M-x write-region should ignore the variable
	binding in that case and do translation anyway.

1997-01-02 02:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/: scheme16.c (1.10), scheme32.c (1.13): Rearrange
	the code that sets memtop to trigger an interrupt.  I have a strong
	suspicion that these timer interrupts run in a separate thread
	under NT.  If so, this is a really dangerous thing to be doing
	without synchronization.  This rearrangement will minimize the
	window in which problems can occur.

1997-01-02 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: avltree.c (1.3), bchdrn.h (1.8), bchpur.c (9.66),
	bignum.c (9.43), bitstr.c (9.60), comutl.c (1.30), extern.c (9.36),
	fasdump.c (9.62), findprim.c (9.51), hooks.c (9.56), lookprm.c
	(1.10), ntio.c (1.14), ntsys.c (1.7), nttrap.c (1.12), rgxprim.c
	(1.11), utils.c (9.71), bintopsb.c (9.66): Eliminate compiler
	warnings generated under NT.

1997-01-01 23:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/win32.scm (1.7): Change event-reading code to use SELECT
	rather than kludge of giving up time slice and polling.  This
	requires corresponding changes in microcode 11.155 and runtime
	14.171.

1997-01-01 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ntprm.scm (1.10), version.scm (14.171): *** Note: this
	version of the runtime system requires microcode     version 11.155
	or later.  ***
	
	* Implement heuristic to detect unix drivers and perform
	appropriate   end-of-line translations for them.
	
	* Provide names for Win32 file-system info flags.
	
	* Reimplement SELECT support to match changes in microcode.  The  
	improved support helps to prevent Scheme from getting stuck while  
	waiting for input.

1997-01-01 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.155): Extensive changes to provide proper
	support for Win32 API calls.  This new support integrates with the
	runtime system to provide correct names for procedures and errors,
	and eliminates the need to use a unix-style name in association
	with a Win32 API entity.
	
	* Create new Win32-specific channel types.  Eliminate
	non-OS-specific   channel type names.
	
	* Introduce new file "ntapi.h" to encapsulate information about the
	  Win32 API.  Rename macros for NT system calls, separating them
	into   two groups: one to handle unix-style calls, the other to
	handle	 Win32-style calls.  Eliminate NT_<foo> aliases of C
	library   procedures.  Create Win32-specific system-call names,
	API-call   names, and errors.  Update all references to the old
	names.
	
	* Implement OS_malloc, OS_realloc, and OS_free; change various call
	  sites to use these.
	
	* Change the low-level timer-interrupt handler to generate a GUI  
	message when a Scheme interrupt is generated; this is necessary to 
	 unblock Scheme if it is blocked inside MsgWaitForMultipleObjects.

1997-01-01 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntapi.h (1.1): Initial revision

1997-01-01 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dosfile.c (1.3), nt.h (1.6), ntenv.c (1.15), ntfile.c
	(1.7), ntfs.c (1.13), ntgui.h (1.7), ntio.c (1.13), ntscmlib.h
	(1.7), ntsig.c (1.19), nttop.c (1.19), osio.h (1.12), prntenv.c
	(1.6), prntfs.c (1.9), prntio.c (1.4), prosio.c (1.14), prospty.c
	(1.3), syscall.h (1.10), uxfile.c (1.8), uxio.c (1.40), uxterm.c
	(1.25), ntutl/scheme16.c (1.9), ntutl/scheme31.c (1.8),
	ntutl/scheme32.c (1.12): Extensive changes to provide proper
	support for Win32 API calls.  This new support integrates with the
	runtime system to provide correct names for procedures and errors,
	and eliminates the need to use a unix-style name in association
	with a Win32 API entity.
	
	* Create new Win32-specific channel types.  Eliminate
	non-OS-specific   channel type names.
	
	* Introduce new file "ntapi.h" to encapsulate information about the
	  Win32 API.  Rename macros for NT system calls, separating them
	into   two groups: one to handle unix-style calls, the other to
	handle	 Win32-style calls.  Eliminate NT_<foo> aliases of C
	library   procedures.  Create Win32-specific system-call names,
	API-call   names, and errors.  Update all references to the old
	names.
	
	* Implement OS_malloc, OS_realloc, and OS_free; change various call
	  sites to use these.
	
	* Change the low-level timer-interrupt handler to generate a GUI  
	message when a Scheme interrupt is generated; this is necessary to 
	 unblock Scheme if it is blocked inside MsgWaitForMultipleObjects.

1997-01-01 05:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.29): Simplify code that changes a window's
	size.  Both the old and new code produces incorrect results on my
	machine.  This seems to be an OS/2 bug, as it consistently adds too
	much padding to the frame window's header height.

1997-01-01 05:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pros2pm.c (1.19), os2pmcon.c (1.22): Disable byte
	alignment for windows created by Scheme.

1996-12-25 02:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.26): * Change terminology to refer to "seen"
	articles as "deleted".
	
	* Introduce new marking, "browsed", to indicate articles whose
	headers   have been shown in a news-group buffer.  These "browsed"
	markings   are used to prevent a common problem with cross posts:
	after having   marked an article in one group, re-marking the
	cross-posted article   differently in another group clobbers the
	original markings.  The   news reader now examines the "browsed"
	marking, and does not re-mark	any cross post that has already
	been "browsed".
	
	* Change code that selects initial header when opening a news-group
	  buffer for the first time.  New code does not automatically
	expand a   thread whose first message is "deleted".

1996-12-25 01:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.25): * Change terminology to refer to "seen"
	articles as "deleted".
	
	* Introduce new marking, "browsed", to indicate articles whose
	headers   have been shown in a news-group buffer.  These "browsed"
	markings   are used to prevent a common problem with cross posts:
	after having   marked an article in one group, re-marking the
	cross-posted article   differently in another group clobbers the
	original markings.  The   news reader now examines the "browsed"
	marking, and does not re-mark	any cross post that has already
	been "browsed".
	
	* Change code that selects initial header when opening a news-group
	  buffer for the first time.  New code does not automatically
	expand a   thread whose first message is "deleted".

1996-12-25 01:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/make.scm (1.5): Don't disable stack checks
	for this architecture; stack overflow is impossible to debug
	without them (except on OS/2 which has clever virtual-memory
	support for this).  Also note that all other architectures generate
	them by default.

1996-12-24 17:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.139): Modify BACKUP-BUFFER to chase through
	symbolic links so that the backup operates on the file rather than
	the link.

1996-12-24 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.74): Simplify OS/BACKUP-BUFFER? to be
	consistent with Emacs 19.

1996-12-24 03:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.24): Fix bug: not showing all headers when
	reverting group buffer.  Also rewrite handling of cross posts to
	concentrate cross-post management in one place.

1996-12-18 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: snr.scm (1.23), edwin.pkg (1.203): Implement new variable
	news-group-keep-ignored-headers.  Change purging code to use new
	interface.

1996-12-18 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.13): Reimplement code to purge pre-read headers
	and bodies.  New code calls predicate with a header instead of with
	a message number, deletes message-id entries properly, and
	eliminates any body without a corresponding header.

1996-12-15 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.25): Preserve time stamp of file when reverting
	to previous revision.

1996-12-15 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.97): Use special allocator to allocate the
	heap when running under Linux.	Linux ELF pushes the text and data
	segments up into high addresses, leaving most of the low addresses
	empty.	To get access to them, we must use mmap.

1996-12-15 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.h (9.96), ux.c (1.15): Use special allocator
	to allocate the heap when running under Linux.	Linux ELF pushes
	the text and data segments up into high addresses, leaving most of
	the low addresses empty.  To get access to them, we must use mmap.

1996-12-11 02:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.69): Add one final tweak to get
	X-WINDOW-SET-POSITION working properly.  It now works correctly
	under XFree86; I haven't tested it under HP-UX mwm, but I think it
	is probably still failing there.  There seems to be some kind of
	translation problem on that system.

1996-12-10 19:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xcom.scm (1.15): Change implementation of M-x
	show-frame-size to use new primitive to determine size of frame in
	pixels.

1996-12-10 19:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.68): Reimplement X-WINDOW-GET-POSITION and
	add new X-WINDOW-GET-SIZE.

1996-12-10 17:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xcom.scm (1.14), edwin.pkg (1.202): Implement commands to
	show the size and position of the editor frame.

1996-12-10 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.67): Implement new primitive to get the
	desktop coordinates of a window's frame.

1996-12-07 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirw32.scm (1.1): Initial revision

1996-12-07 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.42), edwin.ldr (1.58), decls.scm (1.58),
	ed-ffi.scm (1.41), edwin.pkg (1.201): Implement remaining Dired
	customizations for Win32.  (All further customizations require
	subprocess support.)

1996-12-07 02:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.22): Fix thinko in recent change.

1996-12-07 02:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.21): Fix thinko in recent change.

1996-12-06 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.36), edwin.ldr (1.57): Add support for
	encrypted files.

1996-12-04 11:21  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/msort.scm (14.4): Changed SORT to return a newly
	allocated list (as specified in the reference manual) in the case
	of a singleton list.

1996-12-01 12:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/msort.scm (14.3): Changed some calls to ERROR to calls to
	ERROR:WRONG-TYPE-ARGUMENT etc.

1996-12-01 12:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: uproc.scm (1.10), qsort.scm (14.2), partab.scm (14.4):
	Changed some calls to ERROR to calls to ERROR:WRONG-TYPE-ARGUMENT
	etc.

1996-12-01 12:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.54): Change to permit RMAIL files to be
	visited in RMAIL mode under NT (no support for reading mail yet).

1996-12-01 12:11  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.45): Added graphics operation
	DRAW-TEXT-OPAQUE.  Removed duplicate X-GRAPHICS/FILL-POLYGON.

1996-11-30 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.20): Fix "unused variable" warning.

1996-11-26 12:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/msort.scm (14.2): Speed up SORT! 45% by using fixnum
	index arithmetic.

1996-11-22 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.19): Don't remove messages from the "seen" list
	when erasing their "ignored" bit.  The appropriate action will be
	taken elsewhere.

1996-11-21 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.18): * Add support for remembering marked
	articles in group structure and   in group init file.  Change
	server buffer to show which groups   contain marked articles. 
	Extend M-x news-read-marked-bodies so that   it will work from the
	server buffer, fetching all of the marked   articles in all of the
	groups.
	
	* Change group buffer to show threads that have pre-read bodies.
	
	* When marking an article, if it is not being ignored, make sure
	that   it is removed from the ignored-subjects database.

1996-11-18 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntfs.c (1.8): Ignore sharing-violation errors when
	reading file attributes, treating the file as non-existent.  This
	is not correct, but until the NT errors are properly mapped, the
	runtime system won't be able to handle this error.

1996-11-18 16:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.27): Change call to `PostMessage' to use
	`SendMessage' to eliminate race condition when adjusting font and
	size of window together, as does my .edwin file.

1996-11-14 17:14  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/scheme/widget-mit.scm (1.2): Fixed '() <--> #F bug in
	FIND-TK-PROTECTION-LIST-FROM-NUMBER.

1996-11-13 17:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.11): reverted change but left both
	#defines of KERNEL_FILE in place.

1996-11-13 17:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.10): Changed to look for both hpux9 and
	hpux10 kernel files.

1996-11-10 00:59  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.pkg (1.22): Added the
	disassembler back into the normal system.

1996-11-07 16:57  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/debug.scm (1.39): Changed an occurence of MAP to FOR-EACH
	to make behaviour deterministic.  Added variables
	`debugger-show-inner-frame-topmost?' and
	`debugger-compact-display?' to control the display of information.

1996-10-27 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.12): Don't purge the header database when
	updating the server info.  This caused the newsreader startup to be
	extremely slow.

1996-10-27 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.17): Don't purge header database when reading
	headers in; this unnecessarily slows down the header-reading
	process.

1996-10-24 12:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.54): Synchronize action of XTERM-SCREEN/ENTER!
	until after the window is properly mapped on the screen.  This will
	hopefully eliminate the weird race condition that has been causing
	so many errors.

1996-10-24 12:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/key-x11.scm (1.4): Fix bug that can cause a SIGSEGV.

1996-10-23 23:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.11): Change NEWS-HEADER:GUARANTEE-FULL-TEXT! so
	that it stores the header text after it is fetched.  This is
	necessary to allow off-line reading to work properly.

1996-10-23 18:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.10): Change code that joins and splits threads
	on the basis of subject.  This code is now more discriminating than
	previously.

1996-10-23 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.16): When reading in context headers, mark them
	as ignored when necessary.  Also, delete entire threads of "seen"
	context headers.

1996-10-23 18:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.15): When reading in context headers, mark them
	as ignored when necessary.  Also, delete entire threads of "seen"
	context headers.

1996-10-15 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.9): Fix another thinko.

1996-10-15 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.8): Fix thinko.

1996-10-15 15:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.7): Fix bug: try harder to open the database
	files.

1996-10-15 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.200): Changes to news reader.

1996-10-15 15:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.14): * Add new switches:    
	news-group-keep-seen-headers	 news-group-show-seen-headers
	
	* Change default for news-group-show-context-headers.
	
	* Change binding of news-toggle-online to shift-O.
	
	* Change code that collapses and expands threads so that only those
	  threads that need to be changed are actually rewritten.
	
	* Add "B" marker in header lines to show which messages have  
	associated bodies stored in the new body database.
	
	* Add command news-read-marked-bodies (bound to "r") to read the  
	marked bodies in a news-group buffer.
	
	* Make noticeable change to the performance of header-parsing code,
	in   order to support groups with very large numbers of headers.

1996-10-15 14:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.6): * Add database for message bodies.
	
	* Modify handling of message-header database so that messages are  
	keyed by ID as well as by number.
	
	* Purge obsolete headers from the cache and database when the
	server	 info is updated.
	
	* Change format in which headers are stored in database to improve 
	 performance.
	
	* Use gdbm_fastmode for database files at all times.
	
	* Various small performance tweaks to header-parsing code.
	
	* Change thread organizing code to separate the switch for context 
	 headers from the switch allowing server probes.

1996-10-14 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.13): Make sure that groups are tracked after
	being unsubscribed so that they will be deleted from the groups
	list when their "article-seen" information is irrelevant.  Save
	groups list whenever a group buffer is killed, to help insure
	consistency between the groups list and the header cache.

1996-10-10 06:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: rmail.scm (1.53), unix.scm (1.73), os2.scm (1.35),
	dos.scm (1.41), notify.scm (1.17), edwin.pkg (1.199): Generalize
	how RMAIL looks for the spool directory and the movemail program.

1996-10-09 11:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.40), dosfile.scm (1.8), os2.scm (1.34): Now
	that microcode implements directory-reading properly, use the OS/2
	directory reader for Win32.  This is implemented by moving the
	directory reader to "dosfile.scm", since we aren't supporting DOS
	any more.

1996-10-09 11:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.273): Now that microcode implements
	directory-reading properly, use the OS/2 directory reader for Win32
	rather than the DOS directory.

1996-10-09 11:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.26): Fix font-selection code so that it
	will allow selection of raster fonts.

1996-10-09 11:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.12): Fix directory reader so that wildcarding
	is done by the Win32 API rather than Scheme code.  This improves
	performance and makes the wildcarding work as in other Win32
	programs.  Also implement OS_directory_read_matching which improves
	performance of completion in Edwin.

1996-10-08 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.66): Further refine the error-catching
	code in X-WINDOW-SET-INPUT-FOCUS.  It now catches the error that
	was causing the problems.

1996-10-08 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.121): When creating a new frame, don't select
	it -- attempting to do this causes a race condition that can cause
	X to signal an error.  Instead, rely on the window manager to
	select the window if that is appropriate.

1996-10-07 21:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/wconfig.bat (1.3): Adjustment for correct Watcom
	configuration.

1996-10-07 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.9): Define bits for Win32 attributes.

1996-10-07 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.39): Adjust handling of file modes that are now
	Win32 attributes rather than unix mode bits.

1996-10-07 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.38): Adjust dired line layout to accomodate
	Win32-specific mode string.

1996-10-07 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: win32com.scm (1.7), win32.scm (1.6), edwin.pkg (1.198):
	Implement M-x set-frame-size.  Fix bug in M-x show-frame-size.

1996-10-07 14:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/: wf_user.scm (1.7), win32.pkg (1.9), clipbrd.scm (1.2):
	Add new procedures ADJUST-WINDOW-RECT, GET-CLIENT-RECT,
	WIN32-SCREEN-WIDTH, and WIN32-SCREEN-HEIGHT.  Fix bug in
	GET-DEVICE-CAPS.

1996-10-07 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.15), unxprm.scm (1.46), dosprm.scm
	(1.39), ntprm.scm (1.8): Fix bug: previously, "universal time" was
	really unix time.  This fix does the translation between universal
	time and unix time.

1996-10-07 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.272): Export new variable EPOCH.

1996-10-07 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.18): Implement primitives to get the size of
	the character box in pixels and to set the size of the window.

1996-10-07 13:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.25): Change font-setting code to
	interpret the font size in points rather than in logical units. 
	This makes this code consistent with the font-setting dialog.
	
	Handle the WM_WINDOWPOSCHANGING message in order to guarantee that
	the window is sized to an integral number of characters.
	
	Also, many formatting changes.

1996-10-07 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntenv.c (1.14): Change OS_encoded_time to use Win32
	API.

1996-10-07 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.11): Catch additional error code that can
	occur when file doesn't exist.

1996-10-07 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntfs.c (1.7): Change file-info primitives to use
	Win32 API calls instead of C library calls.  Return mode string and
	mode bits in native format rather than unix format.

1996-10-07 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosenv.c (1.14): Change time decode/encode to use
	unsigned integer conversions.

1996-10-07 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscreen.h (1.13): Add export for
	screen_char_dimensions.

1996-10-04 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.18): Fix bug: interface to
	OS/BUFFER-BACKUP-PATHNAME was changed and reference in this file
	was missed.

1996-10-04 14:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.65): Fix a thinko in the last change.

1996-10-03 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.cmn (1.9): Work around bug in GNU make
	on OS/2: backslash before output redirection seems to be generating
	a null-string argument which is misinterpreted by findprim.

1996-10-02 17:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.54): Many small changes to eliminate errors
	and warnings when compiling under Win32 using either Visual C++ 4.0
	or Watcom C/C++ 10.6.

1996-10-02 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.53), bitstr.c (9.58), bitstr.c (9.59):
	Many small changes to eliminate errors and warnings when compiling
	under Win32 using either Visual C++ 4.0 or Watcom C/C++ 10.6.

1996-10-02 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hooks.c (9.55): Many small changes to eliminate errors
	and warnings when compiling under Win32 using either Visual C++ 4.0
	or Watcom C/C++ 10.6.

1996-10-02 15:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntutl/scheme32.c (1.11), ntutl/scm-cl3.lst (1.8),
	cmpint.c (1.90), interp.c (9.86), lookup.c (9.55), lookup.h (9.49),
	memmag.c (9.63): Many small changes to eliminate errors and
	warnings when compiling under Win32 using either Visual C++ 4.0 or
	Watcom C/C++ 10.6.

1996-10-02 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ansidecl.h (1.5), avltree.c (1.2), bignmint.h (1.5),
	bignum.c (9.42), bignum.h (9.29), bigprm.c (1.4), bitstr.c (9.57),
	boot.c (9.97), debug.c (9.48), extern.c (9.35), fasdump.c (9.61),
	fasload.c (9.82), findprim.c (9.50), generic.c (9.38), hooks.c
	(9.54), intern.c (9.55), memmag.h (1.5), ntfile.c (1.6), ntgui.c
	(1.17), ntscreen.c (1.24), ntsig.c (1.18), ntsys.c (1.6), nttty.c
	(1.6), option.c (1.43), osscheme.c (1.9), prim.c (9.38), primutl.c
	(9.70), prntfs.c (1.6), prntio.c (1.3), prosio.c (1.13), prosterm.c
	(1.15), prostty.c (1.6), purutl.c (9.48), step.c (9.33), string.c
	(9.37), sysprim.c (9.42), term.c (1.13), usrdef.h (9.42), utils.c
	(9.70), vector.c (9.37), wabbit.c (1.4): Many small changes to
	eliminate errors and warnings when compiling under Win32 using
	either Visual C++ 4.0 or Watcom C/C++ 10.6.

1996-10-02 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/: scheme32.lbc (1.1), scheme32.lnk (1.1): Initial
	revision

1996-10-02 14:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntutl/makefile.wcc (1.4), ntutl/wconfig.bat (1.2),
	cmpauxmd/i386.m4 (1.45): Changes that result in a successful build
	with the Watcom compiler.

1996-10-02 13:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntasutl.asm (1.5): Fix bug: use of "tiny" memory model
	causes Watcom linker to produce invalid executable.  The memory
	model is irrelevant here, anyway, since there are no references to
	memory in this code.

1996-10-02 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.165), os2.scm (1.33), dos.scm (1.37),
	unix.scm (1.72): Add new OS-specific procedure DIRED-PATHNAME-WILD?
	so that unix can support the full range of filename expansion
	provided by the shell.

1996-10-01 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.67): Eliminate duplicate bindings differing
	only in case in bindings lists.

1996-09-30 14:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.64): In x-window-set-input-focus, flush
	the display queue right away.  Otherwise, the error-catching code
	from the previous revision will have no effect since the command
	will be sent later.

1996-09-29 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.52): Fix buffer-memoization bugs.	Eliminate
	random patch installed by bal.

1996-09-28 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: make.scm (15.25), edextra.scm (1.21): Change defaults for
	configuration directories: the course material goes under "~u6001"
	but the working directory is in the user's home directory.  The
	directories are now all chosen when the editor is started rather
	than when the band is built.

1996-09-27 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.19): When scrolling, inform the screen code
	that the cursor has been moved so that it can move it back if
	necessary.

1996-09-27 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.114): Add ability for the terminal-scrolling
	code to tell the screen code that the cursor position has been
	invalidated by the scroll.

1996-09-27 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.24): Change 6.001 package to put the student
	root directory in the user's home directory, rather than using an
	absolute pathname that might not exist on a given system.

1996-09-26 19:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.18): Fix interrupt hole in updating of
	screen size.

1996-09-20 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.63): Patch to help fix bug in 6.001
	debugger.

1996-09-12 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.62): Patch X error handers so that they
	kill Scheme when the X connection is lost.  This is a kludge, but
	is needed to fix a common problem.

1996-09-06 13:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.164): Fix bug: error signalled in dired when
	trying to determine whether a given pathname specifies a directory.

1996-09-06 12:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.44): Add entries to file-primitive
	translation table to cover the new primitives used to open files.

1996-08-26 16:42  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/pp.scm (14.38): Added DEFINE-INTEGRABLE to list of
	specially formatted keywords.

1996-08-19 23:48  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.37): Added X-GRAPHICS-DRAW-IMAGE-STRING.

1996-08-19 14:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.25): Made traps work for HPUX 10.

1996-08-12 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.37): Fix illegal instructions that
	are rejected by the new HP assembler.

1996-07-31 14:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/scheme/tk-mit.scm (1.3): Fix thinko: only conditions are
	errors!

1996-07-31 14:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/scheme/tk-mit.scm (1.2): Wrapped call-backs in error
	trapping code.

1996-07-31 12:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/Makefile (1.2): Added tags target.

1996-07-27 00:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/list.scm (14.22): Re-instated the iterative version of
	MAP.  I keep getting bitten by long lists.

1996-07-26 16:00  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/random.scm (14.16): make random-state-tag
	define-integrable.

1996-07-25 20:34  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.43): Added new stack frame type for
	preservation frames (restore-regs).  Added a debugging-info method.
	
	Changed the illegal-arg error handler for primitive procedures to
	avoid using retry restarts when the primitive signalled a type or
	range error when called from compiled code.  This is necessary
	because the compiler assumes that if it calls a primitive just to
	raise an error then teh primitive will not return.  This assumption
	allows type inference to eliminate furthur checks.
	
	In order to stop the debugger returning a value, the primitive
	should be called `indirectly' via another compiler procedure which
	refuses to return.  I.e instead of compiling the error CAR
	operation as INVOKE:PRIMITIVE
	
	  (#[primitive-procedure car] x)
	
	call it like this:
	
	  (signal-primitive-error '#[primitive-procedure car] x)
	
	where SIGNAL-PRIMITIVE-ERROR is compiled like this:
	
	  (define (signal-primitive-error primitive . arguments)
	     (apply primitive arguments)
	     (error "..."))

1996-07-20 18:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.40): Typo.

1996-07-20 18:26  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.39): Added FIXNUM->FLONUM.

1996-07-12 16:20  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.44): Added graphcis operations DRAW-ARC,
	DRAW-CIRCLE and FILL-CIRCLE.

1996-07-12 16:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.36): Fixed X-GRAPHICS-DRAW-ARC to do the
	right thing when the X and/or Y axes are flipped.

1996-07-12 13:52  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.35): Added X-GRAPHICS-DRAW-ARC for
	drawing filled and unfilled arcs.

1996-07-02 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.39): Rewrite `poll' support to make it
	conditionalized more cleanly.

1996-07-02 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.38): Use POLLNORM in preference to POLLIN
	since the former is supported more widely.

1996-07-02 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.113): Fix minor bug in handling of cursor
	during SCREEN-FORCE-UPDATE.

1996-07-01 19:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.37): If the `poll' system call is available,
	use it in preference to `select'.  This is needed for HP-UX 10.10
	because `select' is broken in that release.

1996-07-01 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.65): Add conditionalization to detect versions
	of HP-UX that supply the `poll' system call.

1996-07-01 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/oscond.h (1.22): Add conditionalization to detect HP-UX
	version 10.10.

1996-06-16 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.51): Fix bug that caused RMAIL to signal an
	error when converting poorly formed messages to RMAIL format.

1996-06-11 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.8): Implement "engineering" display mode.

1996-06-07 00:34  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/scheme/swat.sf (1.2): Included "load.scm" in syntax
	sequence.  Added copyright notice.

1996-06-07 00:29  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/scheme/load.scm (1.2): Any identifier containing `protect'
	is no longer exported.

1996-06-06 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.7): Extend FLONUM-UNPARSER-CUTOFF to allow
	specification of the display mode, e.g. SCIENTIFIC or ENGINEERING.

1996-05-24 03:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.51): Fix bug: don't enqueue a process in the
	process-input-queue if it is already in the queue.  Otherwise, it
	can easily get entered very many times: if there is input waiting,
	and the editor is busy, the process will be queued as often as the
	select code can run.

1996-05-18 02:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.48), socket.scm (1.8), version.scm (14.170),
	runtime.pkg (14.271): Change mechanism used to open files and
	sockets, so that interrupts are enabled during the open.  This is
	necessary, because any network-based operation could potentially
	hang for long periods of time, and it's desirable for the user to
	be able to interrupt out of the operation.
	
	This change requires microcode version 11.154 (or the corresponding
	version 13).
	
	In addition to this change, the low-level channel code was changed
	to eliminate the now-obsolete gc-daemon interlocking code.

1996-05-18 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2sock.c (1.3): Fix code so that interrupts delivered
	during socket calls will deallocated sockets where necessary.

1996-05-18 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.14): Add code to allow delivery of
	interrupts during socket-opening system calls.

1996-05-18 02:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosfile.c (1.8), pruxsock.c (1.10), version.h
	(11.154): Implement new primitives to support new method for
	opening files and sockets.  This code is required for runtime
	version 14.170.

1996-05-17 13:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.7): Allow keyboard interrupts while opening
	sockets.  This is only a partial solution: there is a small window
	in which an interrupt can arrive, leaving the descriptor open but
	forgotten.

1996-05-17 13:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/boot.scm (14.11): Implement new procedure, like
	WITHOUT-INTERRUPTS, except that it allows keyboard interrupts.

1996-05-17 13:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2sock.c (1.2): Allow interrupt delivery during socket
	system calls.

1996-05-17 13:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.cmn (1.8): Fix typo.

1996-05-15 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.50): Fix thinko.

1996-05-15 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.138): Fix bug: GROUP-INSERT-FILE! was
	depending on the fact that INPUT-BUFFER/READ-SUBSTRING did not
	return until the argument buffer was full -- which is no longer
	true.

1996-05-15 14:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.49): Eliminate random heuristic buffer-size
	modulation from previous change.  It turns out that the behavior
	that necessitated this heuristic was a bug in the runtime system.

1996-05-15 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.47): Eliminate loop in
	INPUT-BUFFER/READ-SUBSTRING.  When line-translation was in effect,
	this loop caused this procedure to read input until the buffer was
	filled.  However, the procedure is supposed to return as soon as
	some input is available.

1996-05-15 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.12): Fix thinko: point was not being moved
	appropriately when marking headers backwards.

1996-05-15 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.11): Fix typo.

1996-05-15 00:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.10): Force the reader on-line when the user
	requests re-reading all of the headers in a group.  Save the
	database files after refreshing all of the groups.  Fix typo.

1996-05-14 20:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.112): In SCREEN-MOVE-CURSOR, forget current
	position of cursor in order to force it to be moved at the end of
	the update.  This works around bugs in the terminal
	implementations: sometimes the cursor is moved as a side-effect of
	some other operation.  It's easier to fix this here than to modify
	each implementation to guarantee that the cursor is not moved.

1996-05-14 19:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.111): In SCREEN-FORCE-UPDATE, forget the
	cursor position, so that it will be updated during the redisplay.

1996-05-14 19:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.48): Yet more work on synchronous-subprocess
	I/O.  The simple loop using non-blocking I/O has atrocious
	performance characteristics, at least under OS/2.  It's now been
	replaced by something that uses blocking I/O where possible, and
	modulates the buffer length to provide better feedback for
	incremental output.

1996-05-14 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.17): Guarantee that the presentation space
	for a window is set to its normal colors at the end of a redisplay.
	 Previously, it was often left in the highlight colors, which would
	cause areas of the window to be painted in the foreground color
	when they were exposed.

1996-05-14 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.110): Move the cursor only when its position
	is changed.  Previously, the cursor was being moved many times in a
	row to the same location.  This was caused by repeated screen
	updates being run as a result of processing input events.  Input
	events can be quite common even when there is no typing going on,
	as a result of window-system operations, mouse tracking, etc.

1996-05-13 21:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.9): Change DISPLAY-STYLE in order to
	orthogonalize the effects that it can have.  New design allows each
	of the different style effects to be selected separately.

1996-05-13 21:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: screen.scm (1.109), edwin.pkg (1.197), window.scm
	(1.158), vc.scm (1.24), process.scm (1.47), eystep.scm (1.3):
	Change DISPLAY-STYLE in order to orthogonalize the effects that it
	can have.  New design allows each of the different style effects to
	be selected separately.

1996-05-13 21:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.196), vc.scm (1.23), window.scm (1.157),
	screen.scm (1.108), edtfrm.scm (1.89): Change DISPLAY-STYLE in
	order to orthogonalize the effects that it can have.  New design
	allows each of the different style effects to be selected
	separately.

1996-05-13 21:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.51), bufwin.scm (1.305), window.scm
	(1.156): Change definition of UPDATE-INFERIOR! in order to
	centralize the testing of DISPLAY-STYLE when deciding whether or
	not to update the inferior.

1996-05-13 21:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.46): When doing redisplay in a synchronous
	subprocess, update once before starting I/O loop.

1996-05-13 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.270): Define new operations: CLOSE-INPUT,
	CLOSE-OUTPUT, INPUT-OPEN?, OUTPUT-OPEN?, and WRITE-CHARS.

1996-05-13 20:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.45): Rewrite SYNCHRONOUS-PROCESS-WAIT to
	reduce the amount of redisplay activity, and to eliminate direct
	references to channels.

1996-05-13 19:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: genio.scm (1.7), fileio.scm (1.10), ttyio.scm (1.5):
	Define new operations: CLOSE-INPUT, CLOSE-OUTPUT, INPUT-OPEN?,
	OUTPUT-OPEN?, and WRITE-CHARS.

1996-05-13 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.44): Fix bug: reading output from a
	subprocess would occasionally signal an error because the
	subprocess output channel was closed by Scheme when it detected
	that the subprocess had closed the other end of the pipe.  However,
	the "output-copier" loop continued to operate assuming that the
	channel was open.

1996-05-12 03:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.32), unix.scm (1.71): Change popclient code to
	use new indicator to allow redisplay during synchronous-subprocess
	execution.

1996-05-12 03:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.43): Fix bug in code that writes data to
	subprocess -- channel was being closed before output buffer was
	flushed.  Also, add code to specify whether or not redisplay is
	allowed during synchronous-process execution, and default it to
	disallowed, because it is extremely distracting while doing a
	revert-buffer in a Dired buffer.

1996-05-11 22:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.38): Wrap debugger extent with
	CLEANUP-POP-UP-BUFFERS.  This allows the debugger to be called at
	times when there are active popped-up buffers.	Previously,
	quitting from the debugger in this situation would cause the
	previously popped-up buffer to be hidden.

1996-05-11 22:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.195), snr.scm (1.8): Add commands to read
	and write the .newsrc file.

1996-05-11 04:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.7): When doing certain extended server
	interactions, do redisplay periodically to show changes to the
	user.

1996-05-11 04:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.16): Finish changes stared with previous
	revision: must handle visibility events specially while previewing
	events; must also handle paint events specially.  Handling of paint
	events is different from handling of X expose events -- this seems
	to mean that when a window is exposed, X sends the expose event
	first, but OS/2 sends something other than the paint event first.

1996-05-11 04:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.31), unix.scm (1.70): Pop up a buffer showing
	the "popclient" output so that it is visible while "popclient" is
	running.  Use new popped-up buffer features to keep it visible if
	an error occurs.

1996-05-11 04:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.168): Use new procedure
	MAYBE-KILL-POP-UP-BUFFER.

1996-05-11 04:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.120): Implement new procedures:
	MAYBE-KILL-POP-UP-BUFFER calls KILL-POP-UP-BUFFER if its argument
	is the popped-up buffer.  KEEP-POP-UP-BUFFER prevents a popped-up
	buffer from being killed by an enclosing CLEANUP-POP-UP-BUFFERS. 
	POPPED-UP-BUFFER returns the POPPED-UP buffer, if any.

1996-05-11 04:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.42): Change SYNCHRONOUS-PROCESS-WAIT so that
	it does redisplay while it's waiting.  This allows the output from
	a synchronous subprocess to be incrementally displayed as it is
	read.

1996-05-11 04:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: shell.scm (1.13), editor.scm (1.241), fileio.scm (1.137),
	utils.scm (1.40): Eliminate CALL-WITH-PROTECTED-CONTINUATION.

1996-05-10 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2api.h (1.9), pros2fs.c (1.16), os2io.c (1.7),
	os2.h (1.5): Change initialization code to allocate a minimum of
	256 file handles for Scheme.  The old default of 20 is too small --
	quickly eaten by a small number of subprocesses in Edwin -- and
	worse, the default is not a constant but depends on the method used
	to invoke Scheme.
	
	The number of file handles can by dynamically changed using a new
	primitive.  The channel table is initialized to 1024 entries,
	allowing plenty of room for growth should that be desired.

1996-05-10 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.41): Fix thinko in process-name allocation.

1996-05-09 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxsock.c (1.9): Fix typo.

1996-05-09 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.cmn (1.7): Add support for sockets and
	GDBM under OS/2.

1996-05-09 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2sock.c (1.1): Initial revision

1996-05-09 16:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2api.h (1.8), os2cthrd.c (1.8), os2cthrd.h (1.5),
	os2io.c (1.6), os2io.h (1.3), os2pipe.c (1.7), os2top.c (1.17),
	pruxsock.c (1.8): Add support for sockets under OS/2.

1996-05-09 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.5): Eliminate support for use of "tcp"
	subprocess in place of real socket support.  This was used under
	OS/2 to work around the lack of socket support, but did not work
	properly because the subprocess could not be reliably killed.  This
	is now moot since OS/2 socket support has been implemented.

1996-05-09 13:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.153): Change release version number from
	7.4.3 to 7.5, since the former will be needed for patches to the
	7.4 release, and the current sources contain code that won't go
	into the 7.4 series.  Also replace the "(alpha)" with "a" to be
	more succinct.

1996-05-08 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.40): Fix bug -- inverted meaning of input
	vs. output for subprocess communications.

1996-05-08 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.15): Fix bug in handling of top-level
	indentation.  This bug was introduced in revision 1.11.

1996-05-05 20:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: snr.scm (1.6), edwin.pkg (1.194): Another round of
	changes to the News reader.

1996-05-05 14:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.169): Make BUFFER-POINT a little smarter.

1996-05-04 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.136), os2.scm (1.30), dos.scm (1.36),
	unix.scm (1.69): Fix bug under OS/2: when overwriting a file that
	has its "archived" bit cleared, the bit should be set but was not.

1996-05-04 13:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.14): Fix bug: encoding times with
	time-zone information was not scaling the time-zone information to
	seconds as expected by the microcode.

1996-05-03 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.15): Fix handling of VISIBILITY event so
	that screen contents are immediately invalidated.  This allows
	subsequent redisplay events to take proper action.

1996-05-03 15:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/snr.scm (1.5): Fix bug in marking of "ignored" articles
	from article buffer.

1996-05-03 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2prm.scm (1.29), ntprm.scm (1.7): Fix think-o in
	INIT-FILE-SPECIFIER->PATHNAME for OS/2 and Windows.

1996-05-03 03:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.193): Add exports for "win32com".

1996-05-03 02:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: win32com.scm (1.5), win32com.scm (1.6): Change command
	names and documentation strings to use the noun "frame" rather than
	"screen".

1996-05-03 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.14): Add code to avoid writing the title-bar
	string except when it changes.	Otherwise it flickers annoyingly in
	common circumstances.

1996-05-03 02:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2com.scm (1.4): Fix missing variable error.  Improve
	documentation string.

1996-04-24 18:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/nntp.scm (1.4): Fix some minor bugs.

1996-04-24 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxprm.scm (1.45), random.scm (14.15), os2prm.scm
	(1.28): Update copyright.

1996-04-24 14:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.37): Fix typo.

1996-04-24 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.169): Many changes subsequent to release.

1996-04-24 00:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.13): Fix typo.

1996-04-24 00:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.16): Integrate generic procedure mechanism
	into the runtime system.  This mechanism implements a generic
	procedure call with good performance, but does not define an
	associated class structure as is common in object-oriented
	programming systems.  It is, however, sufficiently general to allow
	such systems to be implemented on top of it, and even to share
	objects between different systems if the systems cooperate
	slightly.
	
	Much of the change here is to reorganize the cold-load sequence so
	that it is possible to bootstrap the runtime system.

1996-04-24 00:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.30), packag.scm (14.25), pp.scm (14.37),
	record.scm (1.24), uproc.scm (1.9), make.scm (14.58): Integrate
	generic procedure mechanism into the runtime system.  This
	mechanism implements a generic procedure call with good
	performance, but does not define an associated class structure as
	is common in object-oriented programming systems.  It is, however,
	sufficiently general to allow such systems to be implemented on top
	of it, and even to share objects between different systems if the
	systems cooperate slightly.
	
	Much of the change here is to reorganize the cold-load sequence so
	that it is possible to bootstrap the runtime system.

1996-04-24 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.269), unpars.scm (14.45), random.scm
	(14.14): Integrate generic procedure mechanism into the runtime
	system.  This mechanism implements a generic procedure call with
	good performance, but does not define an associated class structure
	as is common in object-oriented programming systems.  It is,
	however, sufficiently general to allow such systems to be
	implemented on top of it, and even to share objects between
	different systems if the systems cooperate slightly.
	
	Much of the change here is to reorganize the cold-load sequence so
	that it is possible to bootstrap the runtime system.

1996-04-23 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: optiondb.scm (1.4), ed-ffi.scm (1.15): Add support for
	"gdbm" runtime load option.

1996-04-23 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.43), os2graph.scm (1.12), io.scm
	(14.46), runtime.pkg (14.268): Collect the several implementations
	of protection lists and merge them together in a single place.

1996-04-23 23:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxprm.scm (1.44), os2prm.scm (1.27), sfile.scm
	(14.19), ntprm.scm (1.6), dosprm.scm (1.38): Implement new
	"init-file" procedures for maintaining a database of files in the
	user's home directory.	This is used by the Edwin News reader,
	which needs a convenient place to save its database files.

1996-04-23 23:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.43): Change OS/FILE-END-OF-LINE-TRANSLATION
	to use new FILE-SYSTEM-TYPE primitive to determine a more precise
	result.

1996-04-23 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2prm.scm (1.26), unxprm.scm (1.42): Implement support
	for time-zone information in decoded-time data type.  Generalize
	the procedure FILE-TIME->STRING so that it generates an RFC-822
	time string (when time-zone information is available from the
	microcode).

1996-04-23 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.267), os2prm.scm (1.25), ntprm.scm
	(1.5), dosprm.scm (1.37), datime.scm (14.13): Implement support for
	time-zone information in decoded-time data type.  Generalize the
	procedure FILE-TIME->STRING so that it generates an RFC-822 time
	string (when time-zone information is available from the
	microcode).

1996-04-23 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: fixart.scm (1.2), arith.scm (1.34): Move INT:->FLONUM
	from "arith" to "fixart" so that it will be available earlier in
	the cold-load sequence.

1996-04-23 22:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.91): Numerous changes subsequent to release.

1996-04-23 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: nntp.scm (1.3), snr.scm (1.4), edwin.pkg (1.192):
	Extensive development of News reader; too many changes to list.

1996-04-23 22:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.39): Change synchronous-process code to use
	line translation that is appropriate for the file associated with
	the process buffer, if any.  This is necessary to get newline
	translation correct for compressed files.

1996-04-23 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vc.scm (1.22), utils.scm (1.39), unix.scm (1.68), os2.scm
	(1.29), dos.scm (1.35): Implement new procedure
	FILE-TIME->LS-STRING, to generate a time string like that produced
	by the unix `ls' program.  Change Dired and VC to use this string
	where appropriate.  Consequently rewrite the DOS directory listing
	program to be more like that used for OS/2.

1996-04-23 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.67), fileio.scm (1.135), os2.scm (1.28):
	Change GROUP-INSERT-FILE! to accept an additional argument, which
	specifies the newline translation to be used for the insertion. 
	This allows the compressed-file reading code to specify that the
	translation being used is that appropriate for the file being
	expanded.  Formerly, the wrong translation was sometimes used
	because the compressed file is expanded into a temporary file,
	which can reside on a file system with a different translation, and
	the translation appropriate for the temporary was used.

1996-04-23 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.66), dosfile.scm (1.7), fileio.scm (1.134),
	dired.scm (1.163): Change OS/BUFFER-BACKUP-PATHNAME to accept
	another argument, the buffer being backed up.  This is necessary to
	ensure that the backup control variables are properly referenced;
	formerly local bindings of these variables would not be referenced
	correctly.

1996-04-23 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: linden.scm (1.125), edwin.pkg (1.191), schmod.scm (1.38):
	Generalize lisp indentation code to support a new method for
	specifying how a lisp form is to be indented.  The variable
	lisp-indent-regexps is an alist of regexp-method pairs, which is
	searched linearly for the first regexp that matches the keyword.
	
	This allows the "def" and "with-" rules to be implemented as
	special cases of this more general mechanism.

1996-04-23 21:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.121), edwin.pkg (1.190): Change Info to use a
	list of info directories, rather than a single directory.  This is
	now compatible with Emacs 19.

1996-04-23 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xterm.scm (1.53), wincom.scm (1.119), curren.scm (1.121),
	debug.scm (1.36): Change OTHER-SCREEN to take a "count" argument. 
	Change uses of OTHER-SCREEN to account for this, and to allow
	selection of "invisible" windows, which will now be auto-mapped.

1996-04-23 21:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.189), sendmail.scm (1.34): Modularize the
	header-generation and mail-mode initialization so that the relevant
	parts can be reused by the news reader.

1996-04-23 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.50): Implement RMAIL label-manipulation
	commands.

1996-04-23 21:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: regexp.scm (1.67), edwin.pkg (1.188): Add some new
	procedures for using regular expressions on strings.

1996-04-23 21:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.120): Add optional argument to
	GLOBAL-WINDOW-MODELINE-EVENT! so that the caller can specify which
	windows the even applies to.

1996-04-23 21:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syntax.c (1.23), syntax.h (1.9): Updating of
	character-syntax code, to handle C++-style comments.  This is
	necessary for the new Verilog mode in Edwin.  These changes require
	corresponding changes in Edwin.

1996-04-23 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.187), syntax.scm (1.78): Fix typo.

1996-04-23 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.150): Change frame-related key bindings to be
	compatible with Emacs 19.  This means that C-x 5 has been redefined
	as a prefix key, and M-x split-window-horizontally is now bound to
	C-x 3 instead.

1996-04-23 19:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xcom.scm (1.13), wincom.scm (1.118), tagutl.scm (1.55),
	sendmail.scm (1.33), scrcom.scm (1.5), os2term.scm (1.12),
	os2com.scm (1.3), filcom.scm (1.188), edwin.pkg (1.186), dired.scm
	(1.162), debug.scm (1.35), curren.scm (1.119), bufcom.scm (1.101):
	Change all user-visible references to the noun "screen" to use
	"frame" instead, for consistency with Emacs 19.

1996-04-23 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/verilog.scm (1.1): Initial revision

1996-04-23 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.185), ed-ffi.scm (1.40), decls.scm (1.57),
	loadef.scm (1.29): Add mode for editing Verilog programs.

1996-04-23 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: syntax.scm (1.77), linden.scm (1.124), cinden.scm (1.14):
	Change character syntax interface to use new features implemented
	by microcode.  The new interface is almost like that of Lucid
	Emacs.

1996-04-23 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tximod.scm (1.20): Add more features to Texinfo mode, to
	make it more like the current Emacs version.

1996-04-23 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/manual.scm (1.12): Change M-x manual-entry to use same
	naming convention for buffers that Emacs 19 uses.

1996-04-23 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.22): Change binding of M-x comint-bol from
	C-a to C-c C-a to match Emacs.

1996-04-23 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/toplev.scm (1.10), cref/redpkg.scm (1.9), cref/make.scm
	(1.15), edwin/edwin.sf (1.19): Change CREF program so that it does
	not rewrite files unless the files they were derived from have
	changed.

1996-04-23 17:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/cref.sf (1.9), edwin/edwin.sf (1.18), runtime/runtime.sf
	(14.12): Improve SF-CONDITIONALLY to use same pathname-type
	defaulting that SF does.

1996-04-23 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.sf (1.8): Improve
	SF-CONDITIONALLY to use same pathname-type defaulting that SF does.

1996-04-23 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: butils.scm (4.9), sf.sf (4.7): Improve SF-CONDITIONALLY to
	use same pathname-type defaulting that SF does.

1996-04-23 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.152): Update version numbers for
	post-release changes.

1996-04-23 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/edwin.h (1.8): Add primitive to test data type of Edwin
	"mark" objects.

1996-04-23 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.c (1.14): Add error-checking OS-dependent procedures
	for allocating and deallocating memory.

1996-04-23 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.64): Add primitive to allow unix systems to
	detect file-system type.  This is particularly useful on systems
	like Linux which support many file-system types.

1996-04-23 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxtop.c (1.19), syscall.h (1.9), pruxfs.c (9.52),
	uxfs.c (1.12): Add primitive to allow unix systems to detect
	file-system type.  This is particularly useful on systems like
	Linux which support many file-system types.

1996-04-23 16:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.15): Add time-zone information to
	decoded-time structure.

1996-04-23 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osenv.h (1.7), prosenv.c (1.13), os2env.c (1.10),
	ntenv.c (1.13), dosenv.c (1.9), ux.h (1.63): Add time-zone
	information to decoded-time structure.

1996-04-23 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prgdbm.c (1.1), runtime/gdbm.scm (1.1),
	runtime/gencache.scm (1.1), runtime/geneqht.scm (1.1),
	runtime/generic.scm (1.1), runtime/genmult.scm (1.1),
	runtime/gentag.scm (1.1), runtime/recslot.scm (1.1),
	runtime/tvector.scm (1.1): Initial revision

1996-04-09 21:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.161): Fix bug: dired commands that operate on
	multiple files were merging in the target directory without the
	target device; this works fine on Unix but not OS/2 or Windows.

1996-04-09 16:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntfile.c (1.5): Fixed the problem of not being able to
	(edit and) save a file that is open for reading (usually by an
	error REPL).  Files are now opened allowing concurrent reads AND
	writes.

1996-04-09 16:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: nttop.c (1.18), ntsys.h (1.6), ntsys.c (1.5): Changed
	Windows version handling so that Scheme correctly distinguishes
	Windows 3.1 from Windows 95.

1996-04-09 16:13  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.4): Kludged DOS/FS-LONG-FILENAMES? to return
	#F for ant FAT volume because of Windows'95 confusion about which
	names is the primary name and which names is the 8.3 alias

1996-04-09 16:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/scheme32.c (1.10): Added   #include <stdlib.h> to
	get rid of warnings.

1996-04-08 19:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/memmag.c (9.62): Fix bug: primitives can't be
	conditionally defined, because the findprim program doesn't parse
	the conditionals.  The previous change, which introduced a
	conditional primitive, broke this file on other operating systems.

1996-04-05 17:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.266): Export *SAVE-UNCOMPRESSED-FILES?*
	and *UNCOMPRESSED-FILE-LIFETIME*, which are documented in the
	User's Guide.

1996-04-04 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.52): If a window is unmapped when it is
	selected, perhaps by deleting another window, map and raise it.

1996-04-04 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.51): Differentiate between the primary Edwin
	window and all other (secondary) Edwin windows.  Use distinct
	resource properties to determine the geometry of each type of
	window.  If geometry is obtained from the resource class "Emacs",
	ignore the position information when creating secondary windows.
	
	This will make it possible to have secondary windows come up in
	non-overlapping positions on the display.

1996-04-04 13:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.50): When window is hidden, either by being
	obscured or unmapped, and then revealed again, invalidate our model
	of the on-screen contents immediately, so that it is repainted the
	next time someone writes anything to the window.

1996-03-27 18:13  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/memmag.c (9.61): Fixed copyright date.

1996-03-27 18:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/memmag.c (9.60): Win32 version:
	
	Made the VirtualFree/VirtualAlloc code optional and controlled by
	primitives.  By default it is off, since it incurs the cost of
	zero-filling pages as they allocated.  The main garbage collector
	should turn the feature is GC was paging, but how to measure this
	is not clear.

1996-03-23 14:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: ntutl/scheme32.def (1.3), ntutl/scheme32.c (1.9),
	ntutl/scheme31.def (1.3), ntutl/scheme31.c (1.7),
	ntutl/scheme16.mak (1.4), ntutl/scheme16.def (1.4),
	ntutl/scheme16.c (1.8), ntutl/makefile (1.18), nttop.c (1.17),
	ntsys.h (1.5), ntsig.c (1.17), ntscmlib.h (1.6), ntio.c (1.12),
	memmag.h (1.4), memmag.c (9.59), cmpint.c (1.89): Changes to the
	Windows 3.1/95/NT version: auto-configuration and better virtual
	memory behaviour.
	
	There used to be two version of the library NTSCMLIB.DLL, one
	version for WIN32S, and another version for NT (and '95).  The
	WIN32S version had a partner, NTW16LIB.DLL, to handle the 16-bit
	side of things.  The system was configured for Windows 3.1 or NT by
	copying the appropriate version of NTSCMLIB.DLL into the same
	directory as SCHEME.EXE, or putting an appropriate directory in the
	PATH.
	
	The new scheme is that instead of two NTSCMLIB.DLL files and a
	NTW16LIB.DLL file there will be three files:
	
	  SCHEME32.DLL	The true 32 bit version (NT & '95)
	  SCHEME31.DLL	The windows 3.1 (win32s) version
	  SCHEME16.DLL	  and its 16 bit buddy
	
	These are no longer bound at link time.  Instead, nttop.c now
	detects WIN32S vs. NT and explicitly loads the appropriate version.
	 To support this dynamic linking, the utilities referenced via a
	WIN32_SYSTEM_UTILITIES structure.
	
	Now both SCHEME31.DLL and SCHEME32.DLL use VirtualAlloc, so the
	garbage collector has been changed to de-commit and re-commit the
	pages in the old half-space.  Toy experiments show that roughly
	30-50% of the working set is in the old half-space.
	
	The allocation code *could* be changed to reserve the virtual
	address space of the whole heap as this would allow an extensible
	heap.

1996-03-23 01:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.16): Fix bug: GRAPHICS-TYPE-AVAILABLE?
	shouldn't be signalling errors.

1996-03-23 01:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.49): Fix bug: rmail was trying to read new
	mail even when called with a filename as argument, in contradiction
	of the documentation string.

1996-03-23 01:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.23): Add error check so that attempting to
	insert a negative number of characters results in a tractable error
	rather than a SIGSEGV.

1996-03-23 01:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.13): Fix bug: the computed indentation could
	be negative, which caused Scheme to die with a SIGSEGV.

1996-03-21 11:52  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.184), win32com.scm (1.4), win32.scm (1.5):
	Tidied the interface between WIN32-SCREENs and edwin commands.
	
	Modified Edwin commands SET-ICON.
	
	Added Edwin commands   SET-FOREGROUND-COLOR   SET-BACKGROUND-COLOR 
	 SET-FONT   SET-DEFAULT-FONT   SET-SCREEN-POSITION  
	SHOW-SCREEN-SIZE   SHOW-SCREEN-POSITION

1996-03-21 11:44  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/: graphics.scm (1.10), win32.pkg (1.8), wf_user.scm (1.6):
	Added new global variables WIN32/DEFINE-COLOR and WIN32/FIND-COLOR.
	 Adjusted graphics code to work with them.  Added new API `cover'
	procedure GET-WINDOW-RECT.

1996-03-21 11:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.16): Added primitives:  
	WIN32-SCREEN-SET-DEFAULT-FONT!	 WIN32-SCREEN-SET-FONT!  
	WIN32-SCREEN-SET-FOREGROUND-COLOR!  
	WIN32-SCREEN-SET-BACKGROUND-COLOR!

1996-03-21 11:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: ntscreen.c (1.23), ntscreen.h (1.12): Improved font
	handling:
	
	 . Added ability to parse a string (e.g. "Courier New bold
	underline 20")
	   into a font.
	 . Use this to parse MITSCHEME_FONT.  Removed MITSCHEME_FONT_SIZE
	env
	   variable.
	 . Added primitives WIN32-SCREEN-SET-FONT and
	WIN32-SCREEN-SET-DEFAULT-FONT
	
	Improved window sizing.
	
	  Previously, if the main window was launched minimized, it woudl
	  believe the main window should be the size of the icon, about 3x3
	  characters: too small to hold an error message.  Now it figures
	out
	  or guesses what the size and position would have been if and
	  initializes to that.

1996-03-20 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.11): Change code that selects initial font
	so that it tries several fonts from a list, failing only when none
	of them is found.  This is desirable because one user has reported
	that "System VIO" isn't available on his system.

1996-03-20 18:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.21): Change code that selects initial
	font of console window so that it tries several fonts from a list,
	failing only when none of them is found.  This is desirable because
	one user has reported that "System VIO" isn't available on his
	system.

1996-03-20 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.28): Double PM thread stack size to
	eliminate nasty crashes during font dialog.  Eliminate a variety of
	more subtle bugs in the font dialog code.

1996-03-11 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxproc.c (1.19), uxsig.c (1.32): Fix bug:
	subprocesses were being started with SIGPIPE set to SIG_IGN.  Some
	programs, notably gzip, depend on SIGPIPE being set to SIG_DFL (and
	don't bother to force this true themselves).

1996-03-09 10:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.19): Fixed bug whereby ((lambda (x) x) 1
	(f)) is unsyntaxed as (let ((x 1)) x).

1996-03-06 02:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.107): Fix bug: new screens didn't update
	correctly under Linux (and probably other unixes), because their
	first update occurred before the first Expose event arrived, and
	that first update caused the NEEDS-UPDATE? flag to be cleared.	The
	fix is to clear NEEDS-UPDATE? only when SCREEN-UPDATE is run.

1996-03-05 13:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.15): Added a check after the
	FILE-ATTRIBUTES-DIRECT call.  The attributes will be #F if the file
	is a symlink to hyperspace.  Failure to check was causing a
	SIGSEGV; now it print a warning.
	
	This still leaves the problem of symbolic link loops.  I `fixed'
	this in the one place it was occuring by altering the symlinks.

1996-03-04 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.133): Fix bug that caused recentering under
	certain circumstances when writing out a buffer in which
	require-final-newline was set.

1996-03-04 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtop.c (1.18): Changes to allow microcode to be
	compiled by the Linux ELF gcc.

1996-03-04 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/regex.c (1.16): Fix bugs that caused ^ and $ to return
	incorrect answers when the gap was in specific locations. 
	Repaginate.

1996-03-04 15:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/i386.m4 (1.44), config.h (9.95): Changes to
	allow microcode to be compiled by the Linux ELF gcc.

1996-03-03 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.14): Trace symbolic links pointing to
	directories as well as those that point to files.  This is
	necessary to get the directories "microcode/s" and "microcode/m" in
	the 7.4 tree.

1996-03-01 04:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.11): Finish change that was started in
	revision 1.10.

1996-03-01 03:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.36): Fix bug in previous change.

1996-03-01 02:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.122): Doing M-x
	reindent-then-newline-and-indent on a blank line would reindent
	that line and create a new indented line below it, leaving
	indentation in the original line.  The fix eliminates this
	unnecessary indentation; the original line is empty after the
	command.

1996-03-01 02:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.160): When deleting files, determine whether a
	file is a directory using `file-attributes-direct' rather than
	`file-directory?'.  The latter will return #t for a symbolic link
	pointing to a directory, in which case the deletion will fail.

1996-03-01 02:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/c-mode.scm (1.54): In M-x c-indent-command, if point is in
	the line's indentation, move it to the end of the indentation.

1996-03-01 02:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.48): * get-pop-account-info,
	rmail-pop-accounts: allow arbitrary symbols to	 be specified as an
	account password.  Currently, the symbol   KERBEROS-V4 is allowed
	under unix systems.
	
	* rmail-output-to-rmail-file: when creating a new rmail file, put
	the   header in a buffer and write the buffer out.  This allows
	creation   of a compressed rmail file.	Previously, the file would
	be written   with a ".gz" suffix, but not compressed.

1996-03-01 02:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.65): * os/pathname->display-string: discover
	pathnames that are aliases for	 the home directory.
	
	* unix/call-with-pop-client-password-options: allow Kerberos V4  
	passwords.

1996-02-29 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.64), dosfile.scm (1.6): In
	OS/TRIM-PATHNAME-STRING, allow the user to delete part of an
	inserted directory and then follow it with an absolute pathname.

1996-02-29 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pathnm.scm (14.31): In ENOUGH-PATHNAME, specially handle
	DOS network filenames, because they might partially match to
	non-network filenames.

1996-02-29 17:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.35), unxpth.scm (14.23): Don't silently
	ignore pathname syntax errors; signal them.

1996-02-28 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.34): Continuation of previous bug fix.

1996-02-28 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.22): Continuation of previous bug fix.

1996-02-28 11:42  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/dos.scm (1.34): Added cut and paste.

1996-02-28 11:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/win32.pkg (1.7): Added clipbrd.scm and exported
	WIN32-CLIPBOARD-READ-TEXT and WIN32-CLIPBOARD-WRITE-TEXT.

1996-02-28 11:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/wf_user.scm (1.5): Added Win32 API functions required for
	clipboard commands.

1996-02-28 11:29  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/clipbrd.scm (1.1): Initial revision

1996-02-27 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.63): Fix long-standing bug in OS/HOSTNAME.

1996-02-27 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.33), unxpth.scm (14.21): Fix bug: when an
	environment variable expands into a string that ends in a slash,
	that trailing slash must be ignored if the environment variable is
	delimited by a slash.

1996-02-27 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.62), dosfile.scm (1.5): Fix bug: code to
	determine when the user begins typing a new file name at the end of
	a file prompt must match the inserted file name in its entirety;
	previously it could mistakenly match against a substring of the
	inserted file name.

1996-02-24 08:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2fs.c (1.8): Directory reader should treat "c:\\cph"
	differently from "c:\\cph\\", because the runtime system expects
	the former to return a listing for the directory file itself, and
	the latter to return a listing of the directory's contents.

1996-02-22 14:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.45): Fix bug: when line translation is in
	effect, reading a raw carriage-return would cause the end-index of
	an input buffer to become zero, indicating that the input channel
	had reached end-of-file.  This is a logic error in the design of
	input buffers; it is fixed by defining logical end-of-file to be
	when input-buffer/real-end is zero, because the latter is
	unaffected by line translation.

1996-02-12 19:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.30): Fix bug: redisplay was needlessly
	recentering point whenever a change started at the first visible
	position of the buffer.  This is rarely necessary.  This bug was
	deliberately introduced in revision 1.25 to fix a more serious bug,
	in which the point could be left off-screen at the end of
	redisplay.  This change fixes both bugs, by requesting redisplay
	whenever a change might affect point's position; previously it was
	incorrectly assumed that this request was unnecessary.

1996-02-12 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.47): Fix bug: code to find unix mail messages
	appended to end of RMAIL file was failing due to incorrect regular
	expression.

1996-01-04 18:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.88): Change `declare_builtin' to do a
	sorted insertion into the table, so that a binary search works
	correctly.

1996-01-04 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.30): Add call to `declare_builtin'
	when setting up assembly-language builtins, so that the exception
	handler can properly recognize when an exception has occurred in a
	builtin.

1996-01-04 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.87): Make sure that floating-point control
	word is properly initialized under OS/2.

1995-12-19 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.27): Fix access violation caused by missing test
	for #f.

1995-11-26 13:39  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* pcsample/pcsample.scm (1.2): typo within backquote jungle.

1995-11-20 05:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.70): Fix bug: when comparing
	interprogram-paste string to kill-ring, compare to last string
	killed, not last string yanked.  Otherwise, when yanking from
	elsewhere in the ring, another copy of the last string killed will
	be inserted in the kill ring.

1995-11-20 03:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.69): Fix bug: when comparing
	interprogram-paste string to kill-ring, compare to last string
	killed, not last string yanked.  Otherwise, when yanking from
	elsewhere in the ring, another copy of the last string killed will
	be inserted in the kill ring.

1995-11-19 14:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/load.scm (1.3): Add ZONES subpackage.

1995-11-19 14:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/zones.scm (1.2): Renamed initialization procedure to
	INITIALIZE-PACKAGE!

1995-11-19 14:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/pcsdld.c (1.4): Updateded documentation string.

1995-11-19 14:30  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/pcsample.c (1.4): Changed %PC-SAMPLE/SET-ZONE! to
	incorporate a comparison with the pre-existing value.

1995-11-19 14:28  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/pcs.pkg (1.2): Added ZONES sub-package.

1995-11-19 14:20  Stephen Adams <adams@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.8): Added PCSAMPLE and SWAT to daily logs.

1995-11-19 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.49): Fix bug introduced in previous change to
	this file.  This bug caused keystrokes to be lost when they were
	typed ahead while the editor was busy doing other things.

1995-11-13 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.34): Don't override the geometry specification
	given in the X resource database.  This can cause really unpleasant
	behavior.

1995-11-13 02:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: socket.scm (1.6), thread.scm (1.22), runtime.pkg
	(14.265): Disable the thread timer while doing hostname lookups, as
	it can cause the nameserver request to fail if the timer signal
	arrives while waiting for the nameserver reply.

1995-11-12 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.13): Generate more output to describe what is
	happening.

1995-11-12 00:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.12): Generate more output to describe what is
	happening.

1995-11-12 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.11): Generate more output to describe what is
	happening.

1995-11-12 00:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.7): Update with current directories, and also
	to use new calling conventions for RCS-DIRECTORY-LOG.

1995-11-12 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/rcs.pkg (1.6): Export RCS-DIRECTORY-LOG to the global
	environment, since that is where it's needed.

1995-11-12 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.10): Don't regenerate RCS.log file unless at
	least one of the component RCS files has changed.  This will make
	the common case more convenient, although it won't detect adding or
	removing files from the set being merged; in those cases the
	RCS.log should be deleted.  Also, change the order of argument to
	RCS-DIRECTORY-LOG, default the output-file argument, and change it
	to be interpreted relative to the directory being merged.

1995-11-11 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.9): When reading directory, return both the
	working file and the RCS file for each entry, so that the merged
	log file can refer to the working file names rather than the RCS
	file names.

1995-11-11 02:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.8): Fix bug in previous change.

1995-11-11 02:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: logmer.scm (1.7), mklogs.scm (1.6): Change log merger to
	accept a single directory argument, and to scan down that directory
	tree looking for files under RCS control.  It additionally
	indirects through symbolic links, finding the RCS files for the
	linked files in their home directories.

1995-11-10 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntenv.c (1.5): Fix randomness in last change.

1995-11-10 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.32), dos.scm (1.33): Assume that
	FILE-TIME->STRING will return a plausible string under all
	circumstances.

1995-11-10 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ntprm.scm (1.3), dosprm.scm (1.36): Supply a default
	file-time string if the FILE-TIME->STRING primitive is unable to
	return a meaningful answer.

1995-11-10 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prntenv.c (1.4): Don't return an empty string if
	ctime() doesn't know how to convert the argument -- return #F
	instead.

1995-11-09 10:16  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/uxio.c (1.36): Reverted previous changes.

1995-11-09 01:53  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/uxio.c (1.35): *Attempt* to fix
	OS_channel_read_load_file and OS_channel_write_dump_file for
	sockets.  Now it trys again if only part of the data is
	provided/consumed.
	
	BINARY-FASLOAD still failed occasionally, due to UX_read failing
	with errno==EINTR.  BINARY-FASLOAD is well hairy so it is not clear
	to me that the usual UX_prim_check_errno would do the right thing
	(whatever that is).

1995-11-07 22:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/xeval.scm (1.5): Fixed RCS header & copyright.

1995-11-06 23:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.4): Added STRING->CHAR-SET.

1995-11-06 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pros2fs.c (1.14), dosfs.c (1.5), uxfs.c (1.10),
	os2fs.c (1.7), pros2fs.c (1.15), prosfs.c (1.12): Reconcile various
	versions of file-copying primitives.

1995-11-06 06:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.20): Force repainting of console window
	after a font change.  This used to work, but changes to
	console_resize caused it to break.

1995-11-06 05:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.emx (1.7): Patch to fix arguments to
	emxbind.

1995-11-06 05:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.27): Patch for EMX/GCC.

1995-11-06 05:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.168), edwin/make.scm (3.90): Update for
	release.

1995-11-04 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.151): Update for release.

1995-11-04 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.17): Fix typo.

1995-11-03 21:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (14.5): Fix RCS header line and copyright date.

1995-11-03 21:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2pm.c (1.18): Fix typo.

1995-11-03 21:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.26): Fix typo.

1995-11-03 21:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.264): Set the icon of each graphics
	window to the standard graphics icon.

1995-11-03 21:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2graph.scm (1.11): Set the icon of each graphics window
	to the standard graphics icon.

1995-11-03 21:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.183), os2term.scm (1.10): Set the icon of
	each Edwin screen to the standard Edwin icon.

1995-11-03 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.25), microcode/os2pm.scm (1.6),
	microcode/pros2pm.c (1.17), runtime/os2winp.scm (1.13): Add
	primitive to destroy icons.

1995-11-03 21:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.c (1.24), pros2pm.c (1.16), os2pm.scm (1.5):
	Fix first argument to WinLoadPointer.

1995-11-03 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2pm.c (1.15): Fix typo: icon -> pointer.

1995-11-03 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2pm.c (1.14), runtime/os2winp.scm (1.12): Fix typo:
	icon -> pointer.

1995-11-03 20:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.h (1.3): Change icon resources to be
	symbolically defined.

1995-11-03 20:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2pm.c (1.13), runtime/os2winp.scm (1.11): Add
	primitives to support loading and setting of icons.

1995-11-03 20:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pmcon.rc (1.4), os2pmcon.h (1.2): Change icon
	resources to be symbolically defined.

1995-11-03 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.c (1.23), os2pm.scm (1.4): Add primitives to
	support loading and setting of icons.

1995-11-03 20:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pmcon.c (1.19), os2pmcon.rc (1.3): Load an icon
	resource for the console window.

1995-11-03 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/: makefile (1.13), makefile.cmn (1.6),
	makefile.vac (1.5), makefile.wcc (1.6), makefile.emx (1.6),
	makefile.gcc (1.5): Modify to customize resource files differently
	for scheme and bchscheme, and to allow debug/optimize to be
	selected by a setting in the main makefile.

1995-11-03 19:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.18): Disable the "Copy" menu item when
	the marked region is not active.  Improve logic that decides when
	it is active.  Fix fencepost error in marked region determination.

1995-11-03 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pros2pm.c (1.12), os2pm.c (1.22), os2pm.scm (1.3):
	Change OS2_menu_set_item_attributes to return the success value
	that the message-send returns.

1995-11-03 17:44  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.33): In INT:->STRING  . removed a
	DEFINE-INTEGRABLE that was causing unwanted code duplication,  .
	Optimized PRINT-SMALL to use fixnum arithmetic when quotient is   
	small enough.  Gives 2x speedup for NUMBER->STRING on fixnums,

1995-11-03 16:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/char.scm (14.4): Changed DIGIT->CHAR and CHAR->DIGIT to
	give better error messages and to be faster.

1995-11-03 07:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2term.scm (1.9), edwin.pkg (1.182): Use WinAlarm
	instead of DosBeep for ^G noise.

1995-11-02 20:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2winp.scm (1.10): Add some new primitives and events.

1995-11-02 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.h (1.13), os2pm.c (1.21), os2pm.h (1.12),
	os2pm.scm (1.2), os2pmcon.c (1.17), os2pmcon.rc (1.2), pros2pm.c
	(1.11): * Reorganize the PM interface to encapsulate PM event
	messages and send   them to the window's event qid in their
	original format.  This	 simplifies the process of adding new event
	types, and allows the	window's owner to decide what is relevant
	information.
	
	* Add some new interface calls to support mouse tracking and pop-up
	  menus.
	
	* Implement a mechanism to mark characters with the mouse in the  
	console window, and a Copy command to copy them to the clipboard.

1995-11-02 20:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2xcpt.c (1.6): Fix formatting of error message.

1995-11-02 20:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2io.c (1.5): Fix bug: don't signal an error when the
	type of a file handle can't be determined.  Instead, just treat it
	like a pipe, which is operationally the least common denominator.

1995-11-02 20:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.c (1.10), pros2io.c (1.5): Fix timing bug in
	inter-thread communications.  This bug occurs when two threads read
	the same tqueue simultaneously, which violates the assumption that
	each tqueue is read by only one thread.  This fix is a kludge that
	will be replaced later by a redesigned communications model.

1995-10-31 20:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.24): Add ability to override default
	selection of constructor and loader files.

1995-10-31 19:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.23): Add ability to override default
	selection of constructor and loader files.

1995-10-31 19:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.89): Save the operating-system-specific loading
	files under separate names, so that multiple operating systems may
	be supported from the same build-directory.

1995-10-31 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.16): Save the operating-system-specific loading
	files under separate names, so that multiple operating systems may
	be supported from the same build-directory.

1995-10-31 18:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: make.scm (3.88), edwin.sf (1.15): Save the
	operating-system-specific loading files under separate names, so
	that multiple operating systems may be supported from the same
	build-directory.

1995-10-31 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.sf (1.13), make.scm (3.87), edwin.sf (1.14): Save
	the operating-system-specific loading files under separate names,
	so that multiple operating systems may be supported from the same
	build-directory.

1995-10-31 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.22): Add ability to override default
	selection of constructor and loader files.

1995-10-31 04:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.31): Various listing-switches variables must
	accept strings, and allow themselves to be modified.

1995-10-31 03:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.159): Implement s command like that in Emacs
	19.

1995-10-31 03:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.26), diros2.scm (1.2): Implement M command for
	Dired.	Change Dired to show system/hidden files only when the "a"
	listing switch is given; by default these files are hidden. 
	Implement S command to toggle the switch off and on.

1995-10-31 03:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.13), runtime/os2prm.scm (1.24): Change the
	FILE-INFO primitive to return two additional items: the attribute
	bits and the allocated file length.

1995-10-30 03:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.wcc (1.5): A variety of dependency
	changes corresponding to changes in the source files.  Also,
	reconfigure to make debugging output the default, rather than
	optimized output.

1995-10-30 03:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/: makefile.cmn (1.5), makefile.emx (1.5),
	makefile.vac (1.4): A variety of dependency changes corresponding
	to changes in the source files.

1995-10-30 03:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.16): Implement a variety of new features:
	a menu bar, a warning dialog on the "close", an "about" box, and a
	font-setting dialog.

1995-10-30 03:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2pm.c (1.10): Reorganize the OS/2 PM interface so
	that most of the interface procedures are automatically generated
	from templates by a Scheme program.  This dramatically reduces the
	overhead required to implement a new PM procedure, or to modify the
	interface of an old one.

1995-10-30 03:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.h (1.12), os2pm.c (1.20), os2pm.h (1.11):
	Reorganize the OS/2 PM interface so that most of the interface
	procedures are automatically generated from templates by a Scheme
	program.  This dramatically reduces the overhead required to
	implement a new PM procedure, or to modify the interface of an old
	one.

1995-10-30 02:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.scm (1.1), os2pmcon.h (1.1), os2pmcon.rc (1.1):
	Initial revision

1995-10-30 02:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.12): Supply missing casts that are needed
	by IBM compiler.

1995-10-30 02:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2.h (1.4): Force inclusion of all possible
	interesting OS/2 header information.  It's too much of a pain
	trying to restrict this information.

1995-10-30 02:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2.c (1.7): Add newlines so that error messages format
	better.

1995-10-30 02:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.43): Fix generation of .386p and
	.model declarations; they must always be supplied with Intel-style
	assemblers.

1995-10-27 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.2): Change support for user-name and home
	directory so that it uses the environment variables that are being
	set in our NT configuration.  Also, add better heuristic methods
	for discovering this information when it is not supplied in the
	environment variables.

1995-10-27 22:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.14): New file "ntprm.scm" has Win32
	primitive interface, which is now different from the DOS primitive
	interface.

1995-10-27 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.10): Fix typos.

1995-10-27 21:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.263): New file "ntprm.scm" has Win32
	primitive interface, which is now different from the DOS primitive
	interface.

1995-10-27 21:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.11): Fix typo.

1995-10-27 21:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2prm.scm (1.23), unxprm.scm (1.41), sfile.scm
	(14.18): Move COPY-FILE into the operating-system-specific files. 
	Both OS/2 and NT provide API calls to implement this operation, and
	these calls do a better job than is possible with the previous
	code.  (For example, the OS/2 call also copies extended
	attributes.)

1995-10-27 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.35): New file "ntprm.scm" has Win32
	primitive interface, which is now different from the DOS primitive
	interface.

1995-10-27 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ntprm.scm (1.1): Initial revision

1995-10-27 21:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.10): Guarantee that target file of copy
	operation is writable.

1995-10-27 21:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prntfs.c (1.5), ntfs.c (1.9): Implement new
	primitives: NT-COPY-FILE, NT-GET-FILE-ATTRIBUTES, and
	NT-SET-FILE-ATTRIBUTES.

1995-10-27 20:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pros2fs.c (1.8), pros2fs.c (1.9): Implement new
	primitive OS2-COPY-FILE.

1995-10-27 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.7): Implement new primitive OS2-COPY-FILE.

1995-10-27 19:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2api.h (1.7): Add DosCopy API call.

1995-10-27 04:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.34): Use new Win32 volume-information
	primitive to properly implement DOS/FS-DRIVE-TYPE and
	DOS/FS-LONG-FILENAMES?.  Also tweak pagination of
	environment-variable code.

1995-10-27 03:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prntfs.c (1.4), prdosfs.c (1.4): Implement Win32
	primitive to get information about a disk volume.  This information
	will be used by the runtime system and Edwin to make decisions
	about how to form filenames and what end-of-line translation to
	use.

1995-10-25 01:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.30): Fix typo.

1995-10-25 01:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntutl/makefile.wcc (1.3), os2utl/makefile.wcc (1.4):
	Win32 needs ".386" and ".model" declarations.

1995-10-25 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.42): Win32 needs ".386" and
	".model" declarations.

1995-10-24 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.4): Merge common parts of DOS/WIN32 and OS2
	file-name customization.

1995-10-24 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.3): [no log message]

1995-10-24 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.25), dosfile.scm (1.2): Merge common parts of
	DOS/WIN32 and OS2 file-name customization.

1995-10-24 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/decls.scm (1.56): Add new file "dosfile.scm".

1995-10-24 22:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/ed-ffi.scm (1.39): Corrections so that this information
	matches existing files.

1995-10-24 22:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.13): Corrections so that this information
	matches existing files.

1995-10-24 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.16): Flush copyright notice.  Screw the
	compiler vendors.

1995-10-24 22:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.181), edwin.ldr (1.56), os2.scm (1.24),
	dos.scm (1.29): Merge common parts of DOS/WIN32 and OS2 file-name
	customization.

1995-10-24 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dosfile.scm (1.1): Initial revision

1995-10-24 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: snr.scm (1.3), unix.scm (1.61): Remove definition of
	OS/NEWSRC-FILE-NAME, moving it to OS-specific files.

1995-10-24 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dosprm.scm (1.33), os2prm.scm (1.22): Rename OS2/FS-foo
	to DOS/FS-foo and supply definitions for DOS/WIN32 as well as OS/2.
	 This enables sharing of the filename customization code in Edwin.

1995-10-24 05:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile.wcc (1.2): Changes to allow Win32
	microcode to be compiled by the Watcom C compiler.

1995-10-24 05:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/: makefile.wcc (1.1), wconfig.bat (1.1): Initial
	revision

1995-10-24 05:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.82): Changes to allow Win32 microcode to be
	compiled by the Watcom C compiler.

1995-10-24 02:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/makefile (1.6): Changes to allow Win32
	microcode to be compiled by the Watcom C compiler.

1995-10-24 02:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/: i386.m4 (1.41), makefile (1.5): Changes to
	allow Win32 microcode to be compiled by the Watcom C compiler.

1995-10-24 02:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.29): Changes to allow Win32
	microcode to be compiled by the Watcom C compiler.

1995-10-24 01:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dos.scm (1.28), edwin/edwin.pkg (1.180), runtime/dosprm.scm
	(1.32), runtime/os2prm.scm (1.21): Changes to get Win32 system
	working again.

1995-10-24 01:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/scheme32.c (1.8): Changes to allow Win32
	microcode to be compiled by the Watcom C compiler.

1995-10-24 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/: ntgui.rc (1.9), scheme31.c (1.6): Changes to
	allow Win32 microcode to be compiled by the Watcom C compiler.

1995-10-24 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.17): Supply missing dependencies.

1995-10-24 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntutl/: bch-cl3.lst (1.7), scm-cl3.lst (1.7): Supply
	missing filename.

1995-10-24 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ntscmlib.h (1.5): Changes to allow Win32 microcode to
	be compiled by the Watcom C compiler.

1995-10-24 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/nttop.c (1.15): Bug fix: too little memory allocated
	for OS_Variant string, causing non-local memory problems later. 
	Also changed name and fixed OS_Variant string to be consistent with
	new spec.

1995-10-24 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prntfs.c (1.3), term.c (1.12), utils.c (9.69):
	Changes to allow Win32 microcode to be compiled by the Watcom C
	compiler.

1995-10-24 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: nttty.c (1.5), oscond.h (1.21), osio.h (1.11), outf.c
	(1.9), posixtyp.h (1.13): Changes to allow Win32 microcode to be
	compiled by the Watcom C compiler.

1995-10-24 01:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntgui.c (1.15), ntio.c (1.11), ntscreen.h (1.11),
	nttrap.c (1.11): Changes to allow Win32 microcode to be compiled by
	the Watcom C compiler.

1995-10-24 00:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.h (9.94), memmag.h (1.3), ntfs.c (1.8):
	Changes to allow Win32 microcode to be compiled by the Watcom C
	compiler.

1995-10-23 03:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.32): Implement new operation
	OS/FILE-END-OF-LINE-TRANSLATION, which is used to determine
	appropriate line-translation by interrogating the file system to
	determine its type.  Currently this is interesting only for OS/2,
	in which it is common to mount unix file systems.

1995-10-23 02:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.20): Implement new operation
	OS/FILE-END-OF-LINE-TRANSLATION, which is used to determine
	appropriate line-translation by interrogating the file system to
	determine its type.  Currently this is interesting only for OS/2,
	in which it is common to mount unix file systems.

1995-10-23 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.31), os2prm.scm (1.19), unxprm.scm
	(1.40), dosprm.scm (1.31): Implement new operation
	OS/FILE-END-OF-LINE-TRANSLATION, which is used to determine
	appropriate line-translation by interrogating the file system to
	determine its type.  Currently this is interesting only for OS/2,
	in which it is common to mount unix file systems.

1995-10-23 02:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2fs.c (1.6): Change the DRIVE-TYPE primitive to
	return mount-point information for NFS drives.	This information
	will be used by the runtime system to disable end-of-line
	translation for unix file systems.

1995-10-19 04:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.107): Add caching to RE-COMPILE-STRING,
	RE-COMPILE-CHAR-SET, and RE-COMPILE-PATTERN.  This should clear up
	several small but noticeable pauses.

1995-10-18 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.158): Implement M-x dired-create-directory and
	bind it to #\+.

1995-10-18 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.30): Change MAKE-DIRECTORY and
	DELETE-DIRECTORY to strip off any trailing slash from the filename
	before giving it to the primitive.  Previously these were forcing a
	trailing slash onto the filename.  Most unix implementations don't
	care about this, but Linux rejects the old behavior, and the new
	behavior is more "correct", in the sense that this is an operation
	on the file that is the directory.

1995-10-18 01:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.39): Change MAKE-DIRECTORY and
	DELETE-DIRECTORY to strip off any trailing slash from the filename
	before giving it to the primitive.  Previously these were forcing a
	trailing slash onto the filename.  Most unix implementations don't
	care about this, but Linux rejects the old behavior, and the new
	behavior is more "correct", in the sense that this is an operation
	on the file that is the directory.

1995-10-18 01:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.30), unxpth.scm (14.20): Change
	definition of DIRECTORY-PATHNAME-AS-FILE so that it does nothing
	when the argument is already in "file" form.  This makes it a true
	inverse to PATHNAME-AS-DIRECTORY.

1995-10-17 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/: makefile.gcc (1.4), makefile.emx (1.4),
	makefile.wcc (1.3), makefile.cmn (1.4): Miscellaneous changes to
	OS/2 makefiles.

1995-10-16 13:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/: makefile.wcc (1.2), makefile.cmn (1.3),
	makefile.emx (1.3), makefile.gcc (1.3), makefile.vac (1.3): Fix
	usage of DEL command that assumed 4OS2.

1995-10-14 20:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.h (1.10): Supply missing prototype.

1995-10-14 20:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile.wcc (1.1): Initial revision

1995-10-14 20:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/: makefile.emx (1.2), makefile.gcc (1.2),
	makefile.vac (1.2): Add conditionalizations for Watcom C/C++
	running under OS/2.

1995-10-14 20:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosproc.c (1.16), cmpintmd/i386.h (1.28),
	os2utl/config.cmd (1.3), os2utl/makefile (1.12),
	os2utl/makefile.cmn (1.2): Add conditionalizations for Watcom C/C++
	running under OS/2.

1995-10-14 20:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.91), bchutl.c (1.7), os2env.c (1.9),
	os2thrd.c (1.5), os2top.c (1.16), oscond.h (1.20), posixtyp.h
	(1.12): Add conditionalizations for Watcom C/C++ running under
	OS/2.

1995-10-14 20:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.81): Fix conditionalizations to support
	EMX/GCC and Watcom C/C++ under OS/2.

1995-10-14 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2cthrd.c (1.7): Fix typo that prematurely deallocated
	a message buffer.

1995-10-14 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/asmcvt.c (1.1): Initial revision

1995-10-14 20:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/makefile (1.4): Eliminate rule to generate
	OS/2 assembly-language file, as it is now generated during
	compilation.

1995-10-14 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.40): Reconditionalize to separate
	use of Intel syntax from DOS conditionalization; needed using
	Watcom assembler under OS/2.  Add other conditionalizations for
	Watcom assembler/compiler.

1995-10-12 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.46): Fix typo in previous change.

1995-10-12 18:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.60): Fix typo in previous change.

1995-10-12 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: rmail.scm (1.45), unix.scm (1.59): Change so that RMAIL
	converts the POP password FILE pathname to an absolute namestring,
	so that the OS-specific code doesn't have to do this.

1995-10-12 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.23): Change to support (FILE <filename>)
	password option for POP mail.

1995-10-12 18:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.58): Change to support (FILE <filename>)
	password option for POP mail.  Also add support for Debian
	popclient program, which has different argument options than
	regular popclient.

1995-10-12 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.44): Add option to allow the user to specify a
	file that contains the POP password, rather than being prompted for
	it.

1995-10-12 02:37  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/numint.scm (1.5): Fixed bug in MAKE-ATAN-OPERATOR.

1995-10-09 01:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/: makefile.cmn (1.1), makefile.emx (1.1),
	makefile.vac (1.1), makefile.gcc (1.1): Initial revision

1995-10-09 01:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/: config.cmd (1.2), makefile (1.11): Reorganize
	makefile to allow it to be easily configured for different
	compilers.  Now supports IBM Visual Age C++, IBM C Set++/2,
	EMX/GCC, and GCC/2.  Watcom support will be added shortly.

1995-10-09 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2thrd.c (1.4), os2top.c (1.15), os2xcpt.c (1.5),
	prosproc.c (1.15): Add conditionalizations for EMX/GCC under OS/2.

1995-10-09 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.90), bchdmp.c (9.80), bchutl.c (1.6),
	cmpintmd/i386.h (1.27), os2env.c (1.8), os2proc.c (1.3): Add
	conditionalizations for EMX/GCC under OS/2.

1995-10-08 11:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.10): Changes to get this to work
	with Visual Age C++.

1995-10-08 11:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.89): Change order of #include files, so
	that "config.h" can override default definition of HEAP_FREE in
	"memmag.h".

1995-10-08 11:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ansidecl.h (1.4), outf.c (1.8): Test __IBMC__ in
	addition to __STDC__ because the IBM OS/2 C compiler defines
	__STDC__ to mean "strict ANSI" rather than "ANSI features
	supported".

1995-10-08 11:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.93): Fix bug: define HEAP_FREE for OS/2. 
	The procedure `free' has changed in the most recent release of the
	IBM C compiler, and barfs when it is handed a null pointer. 
	Previously, it did nothing -- but it had not been my intention to
	take advantage of this behavior.

1995-10-08 11:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.86): Test __IBMC__ in addition to __STDC__
	because the IBM OS/2 C compiler defines __STDC__ to mean "strict
	ANSI" rather than "ANSI features supported".

1995-10-08 11:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/memmag.c (9.58): Change order of #include files, so
	that "config.h" can override default definition of HEAP_FREE in
	"memmag.h".

1995-10-06 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.157): Dired mode should not be case sensitive;
	this was changed between Emacs 18 and 19 and the case-insensitive
	default makes more sense.

1995-10-06 02:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.39): Tweaks to previous change.

1995-10-05 02:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.92): Change conditionalization for Linux
	ELF so that it is set in a single place.  This simplifies building
	a non-ELF binary if desired.

1995-10-04 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.h (9.91), cmpauxmd/i386.m4 (1.38),
	cmpintmd/i386.h (1.26), uxtop.c (1.17): Implement changes needed
	for Linux ELF binary format.  This format, unlike the older a.out
	format, translates the data segment to begin at 0x08000000, and
	additionally changes the calling conventions so that returned
	structures are allocated by the caller and passed in as pointers. 
	We fix the first problem by extending the win32s segment register
	manipulation to also be used with Linux ELF.  The second problem is
	fixed by extending the OS/2 assembly-language patches to also cover
	Linux ELF.

1995-10-04 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.85): The Free register can't be compared to
	the value in REGBLOCK_MEMTOP unless it is translated from a "C"
	address to a "Scheme" address.	This makes a difference on the i386
	where we sometimes use the segment registers in a way that makes
	these two representations different.

1995-10-04 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.90): Merge 8.0 and 7.4 versions of this
	file.

1995-10-03 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.22): Change compressed-file support to match
	changes to unix support.

1995-10-03 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.132), unix.scm (1.57): Make sure that the
	value from GROUP-INSERT-FILE! is returned by %INSERT-FILE.

1995-10-03 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.56): Change encoded file I/O methods to
	generate messages to indicate their activity.  Change
	READ-COMPRESSED-FILE to uncompress the file to a temporary file,
	then read the temporary file into the buffer, as this makes it
	possible to read larger files without exhausting the heap.

1995-10-03 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.131): Don't generate file read/write messages
	when using special file I/O methods.  It is expected that these
	methods will have appropriate messages of their own.

1995-10-01 03:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.37): Patches to get the microcode
	to compile properly on Linux ELF systems.

1995-09-29 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.7): Performed by SRA: Add some declarations
	to increase performance.

1995-09-28 12:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.120): Change code to look for encoded files or
	".info" suffix.  Add switch to disable selection highlighting (GJS
	likes selections but not highlighting).

1995-09-28 12:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.130): Add extra argument to
	GET-PATHNAME-OR-ALTERNATE, to allow it to be used in place of
	FILE-EXISTS?.

1995-09-28 02:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.22): Change interrupt locking of
	COMPUTE-KEY-HASH to avoid turning off the GC interrupt.  This was
	causing fatal lossage for BDC.

1995-09-28 02:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.55): Apparently the unix definition of
	completion-ignored-extensions was missing all of the standard
	Scheme extensions.

1995-09-27 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.54), xterm.scm (1.48), edwin.pkg (1.179):
	Implement X selection mechanism for doing cut and paste between
	Edwin and other X windows.  This change requires recent changes to
	the microcode.
	
	There appears to be a bug in the implementation of the INCR
	protocol for receiving large selections -- after working on this
	for a day, I'm giving up and leaving it broken, since it will
	probably never be used.

1995-09-27 12:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.61): More changes for selection support. 
	These changes are required for the current Edwin code.

1995-09-25 16:54  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/graphics.scm (1.9): Fixed bug with windows closed by user
	between last GC and exiting.

1995-09-25 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.156): Handle symbolic link listings specially
	-- they require extra parsing to extract the file name.

1995-09-25 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.60): Add primitive to perform XSelectInput
	library call.

1995-09-25 14:11  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/dibutils/dibutils.h (1.2): Put in MIT copyright notice.

1995-09-25 14:10  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/dibutils/dibutils.c (1.2): Fixed bug in DeleteDIB.  Rewrote
	loop to speed up DIBSetPixelsUnaligned by 2x-3x.  Put in MIT
	copyright notice.

1995-09-18 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.59): Implement some new primitives to
	support X selections.

1995-09-18 18:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.58): Implement some new primitives to
	support X selections.

1995-09-18 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: artutl.c (1.12), extern.h (9.53), prims.h (9.45),
	utils.c (9.68), x11graph.c (1.34), x11term.c (1.24), object.h
	(9.46): Add mechanism to support conversion of primitive arguments
	from Scheme integers to C `unsigned long' integers.

1995-09-15 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.178), xterm.scm (1.47): Add option to ignore
	the button events associated with a click that selects the window.

1995-09-15 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.85): Previous attempt to implement a
	mechanism to restore the signal mask when aborting to the
	interpreter was flawed: the signal mask was saved once, restored on
	the first abort, and left unchanged after that.  The flaw is
	repaired by re-saving the signal mask after every abort.

1995-09-13 19:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.27), filcom.scm (1.187), fileio.scm (1.129),
	os2.scm (1.21), process.scm (1.38), unix.scm (1.53): Changes
	dealing with encoded files:
	
	1. Appending to an encoded file works by reading the file into a   
	temporary buffer, appending the text, and writing it back out.
	
	2. Line translation is handled for encoded files the same way it is
	   for unencoded files.
	
	3. Doing I/O to non-encoded files, if the file doesn't exist, an   
	encoded file is used in its place if available.

1995-09-13 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.18): Change SUBPROCESS-I/O-PORT to allow
	setting of input and output line translation independently.

1995-09-13 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.17): Change SUBPROCESS-I/O-PORT to allow
	setting of input and output line translation independently.

1995-09-13 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/genio.scm (1.6): Change MAKE-GENERIC-I/O-PORT to allow
	setting of input and output line translation independently.

1995-09-13 00:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.43): Always write RMAIL and unix mail files
	with line-translation disabled.  Scheme will read such files fine,
	and this simplifies sharing of the files between operating systems.

1995-09-13 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.42): Always write RMAIL and unix mail files
	with line-translation disabled.  Scheme will read such files fine,
	and this simplifies sharing of the files between operating systems.

1995-09-12 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.128), debuge.scm (1.51): Replace Scheme
	variables *TRANSLATE-FILE-DATA-ON-INPUT?* and
	*TRANSLATE-FILE-DATA-ON-OUTPUT?* with corresponding editor
	variables.  This allows the variables to be overridden on a
	per-buffer basis.

1995-09-11 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.167): Fix bug in previous change.

1995-09-11 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.29): Add new condition type
	ILLEGAL-PATHNAME-COMPONENT so that pathname parsing errors can be
	caught.

1995-09-11 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.166): Add error-control to the prompt
	completion code.  If any of the completion operations signals an
	error, the error will be caught and the user informed that the
	typein string is in error.  This is particularly useful for such
	things as pathnames, which have a fairly restricted syntax.

1995-09-11 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.48): Add new condition type
	ILLEGAL-PATHNAME-COMPONENT so that pathname parsing errors can be
	caught.

1995-09-11 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.47): Add new condition type
	ILLEGAL-PATHNAME-COMPONENT so that pathname parsing errors can be
	caught.

1995-09-11 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.46), runtime.pkg (14.262), dospth.scm
	(1.28), unxpth.scm (14.19): Add new condition type
	ILLEGAL-PATHNAME-COMPONENT so that pathname parsing errors can be
	caught.

1995-09-05 17:27  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.15): Fixed call to ERROR:WRONG-TYPE-DATUM
	to pass correct number of arguments.

1995-08-29 10:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.18): Added feature where (ACCESS <name>
	<system-global-environment>) is unsyntaxed as <name> if
	UNSYNTAXER:ELIDE-GLOBAL-ACCESSES? is non-false and there are no
	shadowing bindings.
	
	This is slightly imperfect because the unsyntaxer cant know about
	names bound in the scode that surrounds the expression that was
	initially passed to UNSYNTAX.  Perhaps these names should be a
	parameter.  Debuggers could then augment the bound names with names
	from the environment (or perhaps unsyntaxing should be done with
	reference to an environment).
	
	The feature is currently OFF by default, but I envision it being
	necessary for sanity as more and more IEEE/R4RS operators are
	integrated as global accesses (so that the compiler knows that it
	can optimize them).

1995-08-20 11:58  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/numint.scm (1.4): Changed the make-<mumble>-operator
	procedures to use arity dispatched procedures.

1995-08-08 21:44  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/zones.scm (1.1): Initial revision

1995-08-08 18:58  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/: pcsample.c (1.3), pcsdld.c (1.3): Name change.

1995-08-08 18:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/: pcsample.c (1.2), pcsdld.c (1.2): Added time `zones'.

1995-08-08 11:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/sysclk.scm (14.3): Added WITH-TIMINGS, a general
	procedure timing device.

1995-08-08 11:30  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.261): Export WITH-TIMINGS.

1995-08-06 11:53  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/pp.scm (14.36): Moved call of NEWLINE in PP so that (1)
	there is only one call to NEWLINE, and (2) the newline is output
	after any warnings that may have been issued during unsyntaxing.

1995-08-03 21:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* wabbit/wabbit.sf (1.2): Update package constructor & loader file
	name conventions.

1995-08-02 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.35): When an expander inserts multiple
	references to an operand, insert a LET so that the operand is only
	bound once.

1995-08-02 17:26  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/scheme/: baseobj.scm (1.1), canvas.scm (1.1),
	control-floating-errors.scm (1.1), generics.scm (1.1), geometry.scm
	(1.1), load.scm (1.1), menu.scm (1.1), mit-xhooks.scm (1.1),
	mit-xlib.scm (1.1), scc-macros.scm (1.1), simple.scm (1.1),
	structures.scm (1.1), structures2.scm (1.1), swat.cbf (1.1),
	swat.sf (1.1), text.scm (1.1), tk-mit.scm (1.1), uitk-macros.scm
	(1.1), uitk.scm (1.1), widget-mit.scm (1.1), widget.scm (1.1),
	xlibCONSTANTS.scm (1.1), other/btest.scm (1.1), other/doodle.scm
	(1.1), other/exports.scm (1.1), other/plotter.scm (1.1),
	other/pole-zero.scm (1.1), other/rtest.scm (1.1),
	other/test-load.scm (1.1), other/test.scm (1.1),
	other/unhash-testing.scm (1.1): Initial revision

1995-08-02 17:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/c/tk3.2-custom/: Makefile (1.1), tkEvent.c (1.1), tkWindow.c
	(1.1), library/emacs.tcl (1.1), tcl/Makefile (1.1), tcl/tclUnix.h
	(1.1): Initial revision

1995-08-02 17:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* swat/: Makefile (1.1), c/MITScheme.c (1.1), c/Makefile (1.1),
	c/scxl.c (1.1), c/tk-c-mit.c (1.1), c/tk-c.c (1.1), c/uitk-prims.c
	(1.1), c/widget-c-mit.c (1.1), c/widget-c.c (1.1): Initial revision

1995-08-01 23:56  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/random.scm (14.13): Replace INT:INTEGER? by faster
	EXACT-INTEGER?

1995-08-01 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.44): Fix weird bug in
	OUTPUT-BUFFER/WRITE-SUBSTRING.	This bug only occurred when
	line-translation was used, and it caused the system to hang during
	some writes.  There was some associated anomalous behavior that is
	not yet explained.

1995-07-29 12:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.6): Changed to use ENOUGH-PATHNAME for
	reporting the file names.  The previous version was using the
	pathname-directory list and losing information.  There was also a
	#F/() bug in this code.

1995-07-28 10:25  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/load.scm (1.2): Added kludge to get around a gratuitous
	name change between 7.4 and 8.0

1995-07-28 10:14  Stephen Adams <adams@zurich.ai.mit.edu>

	* pcsample/: Makefile (1.1), load.scm (1.1), pcs.cbf (1.1), pcs.pkg
	(1.1), pcs.sf (1.1), pcsample.c (1.1), pcsample.scm (1.1),
	pcsboot.scm (1.1), pcscobl.c (1.1), pcscobl.scm (1.1), pcsdisp.com
	(1.1), pcsdisp.scm (1.1), pcsdld.c (1.1), pcsintrp.scm (1.1),
	pcsiproc.c (1.1), pcsiproc.scm (1.1), pribinut.scm (1.1): Initial
	revision

1995-07-27 18:00  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.14): Added INDEX-FIXNUM? and new
	representation for unspecified conditional branch.

1995-07-27 17:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: vector.scm (14.6), list.scm (14.21), string.scm
	(14.12): General improvement of library procedures:
	
	Improved error checking.  More procedures have checks.	Code is
	organized to avoid duplicate checks and to reduce bloat from
	integrated GUARANTEE-* procedures.  Makes use of new INDEX-FIXNUM?
	predicate.
	
	Replaced some recurive algorithms by iterative equivalents.
	
	New procedure: VECTOR-APPEND

1995-07-27 17:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/udata.scm (14.17): Added COMPILED-CODE-BLOCK/MARKED-START
	which returns the index that COMPILED-CODE-BLOCK/CONSTANTS-START
	used to.  COMPILED-CODE-BLOCK/CONSTANTS-START now parses over the
	linkage section.

1995-07-27 17:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.13): [no log message]

1995-07-27 17:10  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.44): The debugging information have been
	completely overhauled for the new compiler.
	
	Compiled files (.com files) now countain a COMPILED-MODULE object. 
	Debugging information is accessed by a DBG-LOCATOR, and the located
	files must contains a DBG-WRAPPER with corresponding timestamps. 
	These objects also contain a version which allows safe extension of
	the dbg information.
	
	DBG-BLOCKs now contain access paths which describe how to find the
	value for the bindings (they used to describe the inverse, i.e. the
	layout of the object).
	
	DBG-PROCEDURES have been streamlined to get lambda list information
	from the source code.
	
	DBG-VARIABLES are implemented as pairs to save on storage.
	
	Improved error message for ENVIRONMENT-* operations.
	
	Now there is only one kind of compiled environment which contains a
	root object and a DBG-BLOCK.  The access paths in the DBG-BLOCK are
	relative to the root object.
	
	The access paths are evaluated by a stack machine which understands
	a fixed vocabulary of operations and 1- and 2- place primitives.
	
	CCENV/LOOKUP and CCENV/ASSIGN! now give an unbound variable error
	if he variable is not bound.  They used to return an unavailable
	object (currently the symbol "??").
	
	CCENV/ARGUMENTS tries to be clever with #!OPTIONAL arguements - an
	assignment trap (i.e. default-object?)	determines the number of
	arguments provided that the previous argument is either required or
	available.

1995-07-26 21:26  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/config.h (9.89): Define the HPPA magical SHARP_F.

1995-07-26 20:37  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.16): Implement
	INSTRUCTION-ADDRESS->COMPILED-CODE-BLOCK.

1995-07-26 20:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.26): Better heuristic location of compiled
	code blocks.

1995-07-26 20:22  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/sdata.h (9.33): Arrange that GLOBAL_ENV is #F and
	END_OF_CHAIN is different for any representation choice of #F.

1995-07-26 20:20  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/purify.c (9.55): Use EMPTY_WEAK_CHAIN.

1995-07-26 20:10  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: option.c (1.42), option.h (1.11): Added option
	-empty-list-eq-false.

1995-07-26 19:42  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/load.c (9.37): 1. New FASL versions.  2. Used
	outf_error in place of fprintf

1995-07-26 19:27  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/gccode.h (9.54): Changed for split fixnum tags.

1995-07-26 19:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fasload.c (9.81): Added code to fix '() according to #F
	= '() or #F != '().

1995-07-26 19:16  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.29): Improved heuristic for identifying
	compiled code blocks.

1995-07-26 18:47  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.88): Use EMPTY_WEAK_CHAIN for weak pair
	chain instead of EMPTY_LIST.

1995-07-26 17:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/extern.h (9.52): Added Debug_Stack_Trace and
	Debug_Print.

1995-07-26 17:04  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/debug.c (9.47): Changed for #F/().

1995-07-26 14:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/boot.c (9.96): Merged changes from OS2 and OS2 and new
	tag scheme.

1995-07-25 12:45  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/x11base.c (1.57): Attempt to fix Hal's SWAT+PPP
	problem.

1995-07-24 18:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.20): Fix bug in INSERT-DIRECTORY that caused
	Dired buffer to get scrambled when using M-x dired-do-rename.

1995-07-19 01:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.12): Must use TYPE option with NAMED
	option.

1995-07-19 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.11): Change representation of random-state
	objects to allow them to be saved and restored using
	fasdump/fasload.

1995-07-17 16:10  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.58): Implemented new version of the
	uncompressor.  In addition to being faster, this version avoids the
	use of FLUID-LETting global bindings and a consequent re-entrancy
	bug.

1995-07-14 00:04  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/test-wabbit.scm (1.1): Initial revision

1995-07-12 21:54  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/wabbit.scratch (1.1): Initial revision

1995-07-12 15:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/pthmap.scm (4.3): Added `unspecific' to the end of the file so
	that it may be loaded into an interpreted runtime band without
	causing an error from the reference trap that was returned ast the
	value of the last expression.

1995-07-12 10:22  Stephen Adams <adams@zurich.ai.mit.edu>

	* cref/toplev.scm (1.9): During output of constructor and loader
	source files, fluid-let *UNPARSER-LIST-BREADTH-LIMIT* and
	*UNPARSER-LIST-DEPTH-LIMIT* to #F to avoid illegal triuncated
	source code.

1995-07-11 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.186): Change interface with
	OS/TRIM-PATHNAME-STRING to pass that procedure a second argument,
	which is the prefix string that is to be trimmed off.

1995-07-11 19:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.19), dos.scm (1.26), unix.scm (1.52): New
	implementation of OS/TRIM-PATHNAME-STRING takes second argument
	(prefix to trim off) and tests to see if the prefix should be
	removed or retained.  This changes behavior in some unusual cases,
	but allows the \\foo\bar notation to be used on DOS/OS2/NT.

1995-07-11 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.185): Change interface with
	OS/TRIM-PATHNAME-STRING to pass that procedure a second argument,
	which is the prefix string that is to be trimmed off.

1995-07-11 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.26), dospth.scm (1.27): Install kludge to
	handle \\foo\bar notation.

1995-07-11 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/subst.scm (4.15): Fix think-o in previous change.

1995-07-10 22:03  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/load.scm (1.1): Initial revision

1995-07-10 20:27  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/wabbit.scm (1.1): Initial revision

1995-07-10 17:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.29): Added a few colons to error messages
	because I spent five minutes trying to understand a message that
	with the particular irritants happened to mean meant something
	different without the colon.

1995-07-07 02:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.18): Change FILE-TIME->STRING to use a full
	year rather than just the last two digits.  RFC 822 specifies just
	two digits, but this has been superseded by a later RFC.

1995-07-06 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/subst.scm (4.14): Another try.

1995-07-06 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/subst.scm (4.13): Don't optimize away (LET () ...) if the body
	of the let contains declarations.

1995-07-06 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.27): Fix typo that prevented the body of
	an IN-PACKAGE special form from being treated like a BEGIN WRT
	declarations.

1995-07-02 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.106): Fix bug that would cause SIGSEGV when a
	screen changed while it was not visible.  The optimization being
	performed for invisible screens was leaving the window redisplay
	data structures in an inconsistent state.  The fix uses a
	less-agressive optimization that does all the redisplay up to the
	screen matrix, but avoids transferring the changes to the X window.

1995-06-30 18:28  Nick Papadakis <nick@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.41): Insert missing backslashes needed by
	previous change.

1995-06-29 20:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.24): Fix broken conditional in
	`OS_pty_master_send_signal', then reconditionalize to broaden the
	applicability of the code.

1995-06-29 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/oscond.h (1.19): Add conditionalizations to set up for
	Linux correctly.

1995-06-29 19:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.62): Linux has `ftruncate'.

1995-06-28 19:29  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/win32.scm (1.4): In READ-EVENT-1, include
	INTERRUPT-BIT/GLOBAL-1 so that messages (including keypresses) are
	dispatched to the screen window by the interrupt-handler, otherwise
	we could wait forever.

1995-06-28 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.51): Implement POP support for unix systems
	that have popclient.

1995-06-27 21:59  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/os2graph.scm (1.10), win32/graphics.scm (1.8): Added new
	initial colour names "orange" and "pink".

1995-06-27 18:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.9): Added back the (declare
	(usual-integrations)) that seems to have vanished between deltas
	14.1 and 14.2

1995-06-23 08:18  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/cgen.scm (4.3): Added a list of declarations which are not
	handled by SF but are known to be handled by the compiler.  This
	list is used only as a filter on the "Unused declaration" warning.

1995-06-23 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2.c (1.6): Previous patch for random return code 3000
	didn't work.  Try a more sophisticated patch.  Too bad IBM doesn't
	have a clue about this one.

1995-06-21 14:19  robblau

	* runtime/savres.scm (14.28): TIME-WORLD-SAVED is now initially #F
	so that IDENTIFY-WORLD does not crash if DISK-SAVE has never been
	called in this world.

1995-06-20 15:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.40): Added primitive documentation to
	HEAP-AVAILABLE?, PRIMITIVE-GET-FREE and PRIMITIVE-INCREMENT-FREE.

1995-06-20 15:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* cref/object.scm (1.9): Added print procedures to many of the data
	structures.

1995-06-20 01:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.260): Add missing export -- this should
	have been noticed many months ago.

1995-06-15 02:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.155): On some file systems, file names may
	have spaces embedded in them.  So use the end of line as the
	delimiter for the file name.  This might still lose, but not as
	often.

1995-06-14 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.88): Linux `frexp' losing -- comment it
	out.

1995-06-14 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.15): Fix typo in previous change.

1995-06-07 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.118): When user requests that the last screen
	be closed, this should act like C-x C-c instead of C-x c.

1995-06-07 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.68): Tweak "interprogram-paste" code so that
	it doesn't signal an error when the kill ring is empty.

1995-06-02 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/packag.scm (14.21): Add optional argument to
	PACKAGE/ADD-CHILD! to allow a new environment to overwrite a
	previous one.  This is useful for reloading a packaged system and
	throwing away the old bindings.

1995-05-31 10:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.19): Previous change didn't work.  Try
	explicitly setting colors to black and white.

1995-05-30 20:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.18): Use CLR_ arguments to set initial
	colors for a window.  Apparently the value returned by
	GpiQueryBackColor is invalid on some displays.

1995-05-25 14:53  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.14): Corrected printed representation of
	undefined values: they are _NOT_ useless since they supply
	synchronization points and help programmers to avoid ill- behaved
	implementation dependencies.

1995-05-25 14:25  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.43): Corrected printed representation of
	undefined values: they are _NOT_ useless since they supply
	synchronization points and help programmers to avoid ill- behaved
	implementation dependencies.

1995-05-23 07:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.32): Fix bug: "sender" field was being
	inserted in such a way that it was not part of the message header.

1995-05-21 06:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.177): Missed some variable bindings for "snr".

1995-05-20 21:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.25): Change canonicalization of pathname
	case so that environment variables are case-sensitive.

1995-05-20 06:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.150): New version in anticipation of OS/2
	release.

1995-05-20 06:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.167), edwin/make.scm (3.86): New version
	in anticipation of OS/2 release.

1995-05-20 06:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2com.scm (1.2), edwin.pkg (1.176): Change color stuff
	to use global color-name database implemented in the runtime
	system.  Add M-x define-color.

1995-05-20 06:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2graph.scm (1.9), os2winp.scm (1.9), runtime.pkg
	(14.259): Move OS/2 console stuff to "os2graph", and flesh it out a
	little.

1995-05-20 06:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.149): New version in anticipation of OS/2
	release.

1995-05-20 06:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.15): Get resizing of console window to
	work properly.

1995-05-20 06:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.c (1.17), pros2pm.c (1.9): Implement
	OS2PS-GET-FONT-METRICS primitive.

1995-05-20 04:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.h (1.11), os2pm.h (1.9): Implement
	OS2PS-GET-FONT-METRICS primitive.

1995-05-19 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2top.c (1.14): Follow standard practice and call
	WinCancelShutdown for all of the non-PM threads in the program.

1995-05-19 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.14): Eliminate compiler warning.

1995-05-19 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2winp.scm (1.8), runtime.pkg (14.258): Implement
	procedures to manipulate basic presentation parameters of the
	console window.

1995-05-19 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.13): Add hooks to update PM console's
	font metric data when the font is changed.

1995-05-19 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.12): Add hooks to update PM console's
	font metric data when the font is changed.

1995-05-19 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.11): Add hooks to update PM console's
	font metric data when the font is changed.

1995-05-19 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.10): Add hooks to update PM console's
	font metric data when the font is changed.

1995-05-19 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.9): Add hooks to update PM console's font
	metric data when the font is changed.

1995-05-19 17:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.c (1.16), os2pmcon.c (1.8): Add hooks to update
	PM console's font metric data when the font is changed.

1995-05-19 14:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/occur.scm (1.2): M-x occur should leave point at beginning
	of buffer.

1995-05-19 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.18): Simplify error reporting for popclient. 
	The output buffer will have a better description of the return
	status.

1995-05-16 05:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2pm.c (1.8), microcode/os2pm.c (1.15),
	microcode/os2pm.h (1.8), microcode/os2msg.h (1.10),
	runtime/runtime.pkg (14.257), runtime/os2winp.scm (1.7),
	edwin/edwin.pkg (1.175), edwin/os2term.scm (1.8): Add primitives to
	create and manage menus.

1995-05-16 00:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.28): Merged split-typecode and old
	versions.

1995-05-13 15:01  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/pp.scm (14.35): Fixed prefix nodes to compose with
	highlighted nodes.

1995-05-13 07:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.14): Don't use WinQueryFocus to decide
	whether the cursor has been created.  There is a short period of
	time in which it answers "yes" when in fact the answer is "no",
	which can result in errors from WinShowCursor.

1995-05-12 05:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.17): OS/2 directory-listing procedures must
	canonicalize filename case, because filename completion code
	depends on case-sensitive string matching operations.

1995-05-10 17:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.13): Fix random editing error.

1995-05-10 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2.c (1.5): Patch to work around sporadic error code
	in DosRequestMutexSem.

1995-05-10 17:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.12): Patch to work around bugs in OS/2 PM
	API cursor procedures.

1995-05-10 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.31): Fix think-o in recent change.

1995-05-10 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.30): Fix think-o in recent change.

1995-05-09 23:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.32): Changed some LAMBDAs in the
	arity-dispatched operators to NAMED-LAMBDAs for PP clarity.

1995-05-09 06:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tparse.scm (1.70): Fix two small bugs in the
	paragraph-parsing code.

1995-05-07 01:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2conio.c (1.8): In the console readahead thread, when
	getch() returns EOF, send an empty readahead message to inform
	Scheme that the console channel has been closed.

1995-05-07 01:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.7): Pay attention to the console_closedp
	flag, and take appropriate action when it is set.

1995-05-07 01:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.11): When WM_QUIT is posted to the PM
	message queue, kill the Scheme program.  This normally happens at
	one of two times: (1) the user clicks on "close" in the pop-up menu
	in the window list, and (2) the system is shutting down.

1995-05-06 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.10): Implement support for fixed-width
	outline fonts.

1995-05-05 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: nntp.scm (1.2), snr.scm (1.2), edwin.pkg (1.174): Add
	code to do news-group posting.

1995-05-05 19:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.29): Change definition of MAIL-INSERT-FIELD
	to make it more general.

1995-05-05 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.28): If "To:" header field not given to
	MAIL-SETUP, don't insert one.

1995-05-05 18:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.27), edwin.pkg (1.173): Reorganize mail
	sending code into more general pieces, then export the pieces for
	use by other programs.

1995-05-05 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.25), os2.scm (1.16), unix.scm (1.50): Add
	OS/HOSTNAME procedure to get a host name suitable for use in an
	email address.	(Implemented for unix and OS/2.)

1995-05-05 03:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.26): Change MAKE-MAIL-BUFFER to return the
	buffer it makes.  If an old buffer exists and the user wants to
	keep it, return #F instead.  Also make the SELECTOR argument
	optional, and allow it to be #F meaning that the buffer will not be
	selected but just returned (the default).  Change the
	MAIL-SETUP-HOOK variable so that it is invoked with the mail buffer
	as an argument.

1995-05-05 02:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.25): Change MAKE-MAIL-BUFFER to return the
	buffer it makes.  If an old buffer exists and the user wants to
	keep it, return #F instead.  Also make the SELECTOR argument
	optional, and allow it to be #F meaning that the buffer will not be
	selected but just returned (the default).  Change the
	MAIL-SETUP-HOOK variable so that it is invoked with the mail buffer
	as an argument.

1995-05-05 02:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.117): Fix bug: select-buffer-hook not being
	invoked-with correct arguments.

1995-05-04 03:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.15): Do CRLF translation when cutting to and
	pasting from the clipboard.

1995-05-03 17:37  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/global.scm (14.48): Changed SHOW-TIME to break process
	time into non-gc and gc times.

1995-05-03 03:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: snr.scm (1.1), nntp.scm (1.1): Initial revision

1995-05-03 03:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.55), ed-ffi.scm (1.38), loadef.scm (1.28),
	edwin.pkg (1.172): Add auto-loaded news reader.

1995-05-03 03:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ordvec.scm (1.1): Initial revision

1995-05-03 03:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.256), optiondb.scm (1.3): Add new file
	implementing operations on ordered vectors.

1995-05-02 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.67): Integrate support for OS-dependent
	cut&paste buffer into the kill and yank commands, as is done in
	Emacs 19.  This support is available in the OS/2 implementation.

1995-05-02 17:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.66): Integrate support for OS-dependent
	cut&paste buffer into the kill and yank commands, as is done in
	Emacs 19.  This support is available in the OS/2 implementation.

1995-05-02 17:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.14), edwin.pkg (1.171), kilcom.scm (1.65),
	dos.scm (1.24), unix.scm (1.49): Integrate support for OS-dependent
	cut&paste buffer into the kill and yank commands, as is done in
	Emacs 19.  This support is available in the OS/2 implementation.

1995-05-02 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2winp.scm (1.6): Add primitives to read and write the
	OS/2 clipboard.

1995-05-02 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.h (1.9), os2pm.h (1.7), os2pm.c (1.9),
	os2pmcon.c (1.6), pros2pm.c (1.7): Add primitives to read and write
	the OS/2 clipboard.  Also implement Shift-Insert command on the
	console window to allow pasting from the clipboard.

1995-05-02 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.127): If a file insertion doesn't insert any
	data, don't do any of the post-processing that sets the
	modification bit, etc.

1995-05-01 20:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.41): Previously a POP password was discarded
	any time an error happened while fetching mail from the POP server.
	 Now, once mail has been fetched successfully, the password is kept
	regardless of any errors.

1995-05-01 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.13): If popclient program is successful, kill
	buffer showing its output.

1995-04-30 11:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.21): Changed COMPUTE-KEY-HASH to compute
	hash value optimistically and only go into the
	SET-INTERRUPT-ENABLES! guarded loop if, as a post-check, the table
	needs rehashing.
	
	On a test case (the new compiler on list.scm) this reduces the
	profiled time in SET-INTERRUPT-ENABLES! from 9.9% to 3.4%

1995-04-30 03:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.126): Repaginate.

1995-04-30 03:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: curren.scm (1.116), intmod.scm (1.86): Change
	select-buffer hooks to take a second argument, the window that the
	buffer is being selected in.  This is often useful, and if it's not
	passed in there's no way to get it.

1995-04-30 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comwin.scm (1.143): Add optional argument to WINDOW-DELETE!
	procedure.  This argument is a window that should get the space
	released by the deleted window.  If it is not adjacent to the
	deleted window, the argument is ignored.

1995-04-30 02:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.170), rmail.scm (1.40), sendmail.scm (1.24),
	vc.scm (1.21): * Generalize and simplify sendmail interface, to
	give more control   over the configuration of a mail buffer by a
	program.
	
	* Restructure parts of the RMAIL code that deal with replies and  
	output to mail files.  Export some of this code for use by other  
	programs.

1995-04-29 10:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/option.scm (14.33): (LOAD-OPTION name #!optional
	no-error?) now returns #F when NO-ERROR? is true and the option
	NAME is not available.	It used to return NAME in all cases.

1995-04-29 09:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.34): Added expansion for SYMBOL? (similar to
	those for numeric predicates).

1995-04-28 08:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/pthmap.scm (4.2): Yet another case where a BODY ended in a
	DEFINITION instead of an EXPRESSION.

1995-04-28 03:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2xcpt.c (1.4): Eliminate compiler warning.

1995-04-28 03:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2env.c (1.7): Eliminate compiler warning.

1995-04-28 03:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.95), option.c (1.41), os2.c (1.4),
	os2conio.c (1.7), os2cthrd.c (1.6), os2cthrd.h (1.4), os2env.c
	(1.6), os2io.h (1.2), os2msg.c (1.9), os2pipe.c (1.6), os2pm.c
	(1.8), os2proc.c (1.2), os2thrd.c (1.3), os2thrd.h (1.3), os2top.c
	(1.13), os2xcpt.c (1.3), outf.c (1.7): * The procedure
	OS_set_working_dir_pathname in "os2env.c" had a   serious bug:
	passing it a string like "d:\\" caused it to signal a	Scheme
	error.	What was serious was that this could occur while   spawning
	a subprocess, which for some as-yet unexplained reason	 would
	crash Scheme with no error message.  To compound matters, the	bug
	appeared to be unreproduceable under a debugger (not true).  The  
	remaining changes were side effects of the blind debugging process:
	
	* Added OS2_initialize_early to "boot.c" and "os2top.c".  This
	allows	 the microcode to do the initialization necessary to put up
	dialog	 boxes.  Which in turn is needed to report boot-time
	errors, such as   non-existent band file names.
	
	* "option.c" calls outf but did not include "outf.h".  Under ANSI
	C,   since outf takes a variable number of arguments, this results
	in   unspecified behavior.  Under OS/2 with IBM's compiler, this
	causes a   mismatch in calling conventions, which can result in
	bizarre errors.
	
	* Modified "os2.c" to have an alternate implementation of OS_malloc
	  and related procedures.  This was generated while attempting to  
	track down a nasty bug that appeared to be a memory-allocation	
	error.	The alternate implementation is #ifdef'ed out, but left in 
	 place should it be useful in the future.
	
	* Improved the definition of OS2_logic_error_1 so that it treats  
	errors in non-essential subthreads as non-fatal.  Also improved the
	  wording of the error messages produced, and included more  
	information for future reference.
	
	* All subthreads now have exception handlers and PM message queues,
	so   they can catch and report any exceptions that occur in them.  
	 Previously, an exception occurring in a subthread would crash
	Scheme	  with no explanation.
	
	* Enhanced the acknowledgement messages sent to a channel readahead
	  thread to carry a flag indicating whether the thread is being
	asked	to read some more or to kill itself.  This eliminates a
	race   condition associated with closing of the channel.
	
	* Changed the input-pipe readahead thread to accept its arguments
	in a   freshly malloc'ed structure that the thread is responsible
	for   freeing.	Previously, the arguments were accepted in a
	channel,   which contained a context structure which in turn
	contained the	arguments.  The previous implementation had a race
	condition in that   the argument data structures were owned by the
	Scheme thread, and   could be deallocated before the readahead
	thread had a chance to	 dereference them.
	
	* In "os2proc.c", moved the allocation of the structure
	representing   the child process into the locked region of the
	process   initialization.  This is necessary because the child-wait
	thread	 accesses the same structures as the allocator.
	
	* In "os2proc.c", the working directory was being saved and later  
	restored.  But this was a static string, and there weren't good  
	guarantees as to it retaining its value -- so now it is copied	
	before being stored.
	
	* When putting up a message box for a fatal error, the buffer used
	to   compose the message was static.  This caused garbling when the
	two   threads attempted to produce fatal errors at the same time
	(this was   occurring regularly during the debugging process).	Now
	the message   box uses a per-thread static buffer.

1995-04-28 03:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2pm.c (1.6): Primitive OS2WIN-GET-EVENT was
	sometimes calling OS_free with a null pointer.	This is legal with
	IBM's C library, but is not something I like to rely on.

1995-04-28 02:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2io.c (1.4): In primitive OS2-SELECT-REGISTRY-TEST,
	there was a window where input could be waiting to be read, but the
	primitive would be blocked waiting for some input.  This was
	because the primitive is composed of two phases, and input detected
	in the first phase was not used to prevent blocking in the second.

1995-04-28 02:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2io.c (1.4): Readahead message types belong to the
	channel-thread implementation and are already initialized there. 
	The initialization here was an unnecessary duplicate.

1995-04-27 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.115): Implement some renames that have been
	nagging for some time:
	
	    current-buffer	=>	selected-buffer
	    current-buffer?	=>	selected-buffer?
	    current-window	=>	selected-window
	    current-window?	=>	selected-window?
	
	With these renames, the accessors now have names that match the
	selectors.  The old names remain as aliases.
	
	This was stimulated by a recent change that accidentally inserted a
	reference to one of the new names -- when I misremember the names I
	chose, it's time to change the names.

1995-04-25 23:22  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.125), motion.scm (1.87): Fiddled with a
	sequence of definitions and expressions to ensure the last form is
	an expression to comply with the new analchecking software.

1995-04-24 19:22  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: gcnote.scm (14.11), runtime.pkg (14.255): Added
	SET-GC-NOTIFICATION!

1995-04-24 19:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.9): Tweaked error checking code to make the
	integrated portion smaller.

1995-04-24 18:30  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.14): Fixed TRANSFORM/PACKAGE to
	always return UNSPECIFIC, which ensures that the last thing in the
	generated LET is not a definition.

1995-04-23 21:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.165): When doing completing prompt with
	REQUIRE-MATCH? set true, delay running completion procedure on
	final value.  First try VERIFY-MATCH? procedure, and if it
	succeeds, don't do any completion.  This shouldn't change the
	behavior since VERIFY-MATCH? must be run anyway, and if the result
	is already a match, completion does nothing.
	
	This is helpful when the completion procedure is expensive but
	VERIFY-MATCH? is relatively cheap.

1995-04-23 02:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.39): Fix think-o in POP server support.

1995-04-23 01:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.12): Fix typos in previous change.

1995-04-23 01:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.17): Add day-of-week prefix to string
	returned by FILE-TIME->STRING.	At this point, the returned string
	is fully compliant with RFC 822.  Furthermore, the procedure is not
	operating-system specific, except that it calls the procedure
	LOCAL-TIME-ZONE, which isn't currently defined for any other
	operating system.  Offhand, it's not obvious what's involved in
	implementing LOCAL-TIME-ZONE for other systems, except for the more
	modern unix systems, in which it's trivial.

1995-04-23 01:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.11), runtime.pkg (14.254): Implement
	procedures to return strings for weekdays.

1995-04-23 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2prm.scm (1.16), dosprm.scm (1.29), unxprm.scm
	(1.38): Implement conversions between file time and universal time.

1995-04-23 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dosprm.scm (1.28), unxprm.scm (1.37): Implement
	ENCODE-FILE-TIME.

1995-04-23 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.15): Implement ENCODE-FILE-TIME.

1995-04-23 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.9): Fix typo.

1995-04-22 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.14): Use new primitives to get time zone
	and daylight savings time information.

1995-04-22 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.10): Update to use new primitives that
	manipulate daylight savings time information.  Change
	make-decoded-time to fill in the day-of-week and
	daylight-savings-time fields.

1995-04-22 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ntenv.c (1.12), dosenv.c (1.8), uxenv.c (1.14),
	os2env.c (1.5): Extend the time decode/encode primitives to handle
	daylight savings time information.

1995-04-22 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosenv.c (1.12), os2env.c (1.4), ntenv.c (1.11),
	osenv.h (1.6), dosenv.c (1.7), uxenv.c (1.13): Extend the time
	decode/encode primitives to handle daylight savings time
	information.

1995-04-22 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2env.c (1.3), pros2fs.c (1.5), pros2fs.c (1.6):
	Implement primitives to get the timezone and daylight-savings
	information from the C library.

1995-04-22 19:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.9): Implement some rudimentary time-zone
	code so that we can produce reasonably accurate time zones in
	RFC-822 dates.

1995-04-22 19:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.8), runtime.pkg (14.253), os2prm.scm
	(1.13): Implement some rudimentary time-zone code so that we can
	produce reasonably accurate time zones in RFC-822 dates.

1995-04-22 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2msg.c (1.8): Fix old typo in OS2_close_std_tqueue
	that was never noticed because this procedure was never called.

1995-04-22 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.7): Fix bug: the C-x z command was closing
	the editor windows and leaving the editor in an unusable state. 
	This happened because the actions of initializing and finalizing
	the PM interface were happening in the wrong place.

1995-04-22 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.c (1.7), os2msg.h (1.8): Lock access to the
	twin of a qid more carefully.  Previously, the code for sending
	messages was not locked at all, which meant that there were race
	conditions that could produce fatal errors.  By locking, we limit
	the amount of concurrent communication slightly, but since the
	locks are active for only a short time this shouldn't be noticed.
	
	Also implement a new procedure OS2_qid_tqueue, which is used by
	inferior threads to obtain and close their associated tqueue
	objects when they finish.

1995-04-22 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pipe.c (1.5): Don't send broken-pipe errors to the
	Scheme thread when they are detected by the pipe readahead thread. 
	Recently, this has seemed to cause a fatal error under certain
	timing conditions (which unfortunately didn't hold while running
	under the debugger).  Although this fatal error is now probably
	fixed, rather than run the risk of finding out, it seems safer to
	avoid the behavior that seemed to cause the problem.  Since the
	value of reporting broken-pipe errors is minimal at best, this is
	not a big deal.

1995-04-22 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2conio.c (1.6), os2pipe.c (1.4): Close the qid and
	tqueue associated with a readahead thread when the thread finishes.
	 This will fix the known bug of exhausting the set of available
	qids, and it will also fix a previously unnoticed memory leak.

1995-04-22 15:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.114): Add missing space to error message.

1995-04-21 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/genio.scm (1.5): Change CLOSE-PORT to close the output
	side of an I/O port before it closes the input side.  This matters
	when the same file channel is shared by both sides, and there is
	buffered data that must be flushed before the close.

1995-04-21 00:28  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.56): Moved some comments to primitive
	documentation strings.

1995-04-20 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2cthrd.c (1.5): Always send a readahead ACK when
	closing a channel with an associated reader thread.  This prevents
	the thread from getting hung in a state where the channel is closed
	but the thread is waiting for the ACK.

1995-04-19 23:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.47): Fix think-o in previous change.

1995-04-18 22:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/macros.scm (1.62): Extend the SET-VARIABLE! and
	LOCAL-SET-VARIABLE! special forms to take an additional optional
	argument that specifies the buffer in which the variable is to be
	set.

1995-04-18 21:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.168): Provide mechanism to permit BUFFER-GET
	to return a value different from #F when the buffer lacks a given
	property.

1995-04-18 21:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.46): Add basic text property procedures that
	accept marks instead of indexes.

1995-04-17 17:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.45): Use new procedure GROUP-INSERT-CHARS! to
	reduce consing in several procedures.  Add new procedures to do
	padded string insertions without consing.

1995-04-17 17:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: grpops.scm (1.22), edwin.pkg (1.169): Add new procedure
	GROUP-INSERT-CHARS!.

1995-04-15 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.7), os2prm.scm (1.12): Fix think-o in
	previous change.

1995-04-15 02:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.168): Eliminate unneeded reference to
	GET-TIME.

1995-04-15 02:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.167): Eliminate unneeded reference to
	GET-TIME.

1995-04-15 02:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.6), os2prm.scm (1.11): Fix think-o in
	previous change.

1995-04-15 02:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.20): Use new procedure OS/LS-FILE-TIME-STRING.

1995-04-15 02:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.48), os2.scm (1.12): Implement new procedure
	OS/LS-FILE-TIME-STRING.

1995-04-15 02:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.36): Implement new procedure
	DECODE-FILE-TIME.

1995-04-15 02:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.10): Implement new procedure
	DECODE-FILE-TIME, and rewrite FILE-TIME->STRING so that it's result
	is (almost) in RFC-822 format.

1995-04-15 02:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.17): Change random ACCESS statement to use
	now-exported name.

1995-04-15 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: datime.scm (14.5), runtime.pkg (14.252): Implement new
	procedure MAKE-DECODED-TIME.  Rename several internal procedures to
	use Common Lisp names, and export them to the global environment.

1995-04-14 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: process.scm (1.16), genio.scm (1.4), io.scm (14.43):
	Add means to control line translation in subprocess port.  This is
	useful when communicating with a TCP stream relay subprocess, in
	which case the line terminators are defined by the network protocol
	rather than by the operating system.

1995-04-14 04:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/illdef.scm (1.3): Code that walked LAMBDA body was being
	too strict -- body should allow definitions and expressions to be
	interspersed.

1995-04-14 04:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/illdef.scm (1.2): Code that walked LAMBDA body was being
	too strict -- body should allow definitions and expressions to be
	interspersed.

1995-04-13 19:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.55): Reorganize X11 keys and eliminate
	unnecessary overriding of HOOK/MAKE-SPECIAL-KEY.

1995-04-13 19:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: key-x11.scm (1.2), edwin.pkg (1.166), key-x11.scm (1.3):
	Reorganize X11 keys and eliminate unnecessary overriding of
	HOOK/MAKE-SPECIAL-KEY.

1995-04-13 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/key-w32.scm (1.2): Reorganize slightly.

1995-04-13 19:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.149): Add bindings for PC's special keys. 
	Under OS/2, these keys have their natural names rather than being
	mapped onto the names of the corresponding keys on the HP keyboard.

1995-04-13 19:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/calias.scm (1.16): Reorganize special-key code.

1995-04-13 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.10): Move CHECK-FOR-ILLEGAL-DEFINITIONS into
	the runtime system proper.

1995-04-13 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/illdef.scm (1.1): Initial revision

1995-04-13 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax.scm (14.26), runtime.pkg (14.251), ed-ffi.scm
	(1.12), make.scm (14.57): Add code to check for illegal internal
	definitions and disallow them.

1995-04-12 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (14.42), runtime.pkg (14.250): Add switch to
	control special handling of abbreviations for QUOTE and friends. 
	Default this switch to OFF.

1995-04-11 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2msg.c (1.6): Fix bug in OS2_receive_message.  It's
	possible to arrive here with a closed qid due to race conditions
	when the sending thread closes the qid while the reading thread is
	about to read from it.	This was happening under some circumstances
	when sending mail: the sendmail program doesn't generate any
	output, and if it terminates before the input thread's first read,
	the qid will be closed.

1995-04-11 01:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2thrd.c (1.2), os2thrd.h (1.2): Add new procedure
	OS2_current_tid.

1995-04-10 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.11): Fix OS/AUTO-SAVE-PATHNAME to rewrite the
	buffer name so that it uses only legal HPFS characters, when the
	pathname includes the buffer name.

1995-04-10 16:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: rmail.scm (1.38), edwin.pkg (1.165): Add support for
	fetching mail from POP servers using an OS-dependent mechanism. 
	This is necessary because socket support is only implemented for
	unix, and other mechanisms are available for other systems.

1995-04-10 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.10): Add code to support fetching mail from a
	POP server using the freeware "popclient" program.  Fix bug in
	precious-file backups.

1995-04-10 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.23): Call OS/FIND-PROGRAM explicitly in one
	place where it is needed.

1995-04-10 12:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.6): Change C-g interrupt-signalling code to
	recognize the combination of the lower-case g and the control keys.
	 Previously, it only recognized the upper-case g.  This was not
	immediately noticed because the input stream lookahead code
	recognized both combinations.

1995-04-10 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.37): RUN-SYNCHRONOUS-PROCESS now calls
	OS/FIND-PROGRAM on its program argument -- this allows invocation
	of a program without knowing its precise location in the file
	system.

1995-04-10 12:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.164): Fix typos in previous change.

1995-04-09 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.47), dos.scm (1.23), rmail.scm (1.37),
	os2.scm (1.9): Add hooks to allow OS-dependent POP mail support.

1995-04-09 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.163): Tweak prompt-for-password slightly.

1995-04-09 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.36): Patch two bugs.

1995-04-09 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.22), os2.scm (1.8), vc.scm (1.19),
	dos.scm (1.22), unix.scm (1.46), rmail.scm (1.35): Make
	OS-independent binding for file-time->string.

1995-04-09 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: sfile.scm (14.17), os2prm.scm (1.9), dosprm.scm (1.27),
	unxprm.scm (1.35): Make OS-independent binding for
	file-time->string.

1995-04-09 18:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2api.h (1.6): Add shared-memory API calls -- these
	will be needed for several different purposes.

1995-04-09 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.26), runtime/os2prm.scm (1.8),
	runtime/unxprm.scm (1.34), runtime/dospth.scm (1.24),
	runtime/unxpth.scm (14.18), edwin/rmail.scm (1.34), edwin/vc.scm
	(1.18), edwin/dos.scm (1.21), edwin/sendmail.scm (1.21),
	edwin/notify.scm (1.16): Make OS-independent bindings for the
	following procedures.  These procedure were previously defined for
	all OSs, but with different names in each OS:
	
	    user-home-directory
	    current-user-name
	    current-home-directory
	
	The old names have been aliased to the new, except for OS/2.

1995-03-30 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/linden.scm (1.123): Fix handling of comments when indenting
	an expression.	Previously, comments appearing at the end of a line
	containing code were not treated specially.  Now, such comments are
	re-indented to the comment column after the line has been
	re-indented.

1995-03-21 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.58), bchmmg.c (9.87), bchdrn.h (1.7),
	bchutl.c (1.5), bchdmp.c (9.79), os2utl/makefile (1.8): Changes to
	get bchscheme running under OS/2.

1995-03-20 20:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.4): Add new primitive to scan Scheme's
	memory usage.

1995-03-20 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.33): Add expansion for INTERN -- just like that
	for STRING->SYMBOL.

1995-03-20 15:14  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/global.scm (14.47): Changed PA to print primitive
	documentation rather than signal an error when given a primitive
	procedure.

1995-03-13 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.7): Delete old definition of "all"
	target.

1995-03-13 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.6): Add default target "all". 
	Change references to assembler and to the libraries that it
	requires -- these files are now assumed to reside in the "os2utl"
	subdirectory.

1995-03-08 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.5): "os2top.obj" now depends on
	"scheme.h".

1995-03-08 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2top.c (1.12), os2xcpt.c (1.2): Implement OS/2
	stack-overflow detection mechanism.  This is a pile of hair
	involving some tricky memory management and a little cooperation
	from the OS/2 exception handler.  See the code for details.

1995-03-08 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: stack.h (9.37), config.h (9.87): Add stack hooks for
	OS/2 stack-overflow detection.	Move existing overrides of
	STACK_RESET macro from "stack.h" to "config.h".  Change
	`Stack_Check' macro to use STACK_OVERFLOWED_P macro rather than
	comparing the stack pointer to `Stack_Bottom', because OS/2
	overrides this macro with an unusual definition.

1995-03-06 21:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/stream.scm (14.9): Fix think-o in previous change.

1995-03-06 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: arith.scm (1.5), 6001.pkg (1.10): Add INC and DEC
	procedures.

1995-03-06 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/stream.scm (14.8): Add operations required by new edition
	of SICP.

1995-03-06 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.55): Fix stupid bug in `copy_bits': code to
	generate mask was doing
	
	    ((1 << 32) - 1)
	
	and expecting something reasonable to happen on a 32-bit machine.

1995-03-03 19:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.34): Reorganize code a little.  Add general
	hook for generating the "description" of an object.

1995-03-03 19:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.41): Add more general hook for unparsing
	records.

1995-03-03 18:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: list.scm (14.20), runtime.pkg (14.249): Implement
	MAKE-INITIALIZED-LIST.

1995-03-02 00:41  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.8): Fiddled with argument ordering.

1995-03-01 16:58  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.248): Exported WT-TREE/UNION-MERGE

1995-03-01 16:57  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.7): Added operation
	
	  (WT-TREE/UNION-MERGE merge tree1 tree2)
	
	merge = (lambda (key value1 value2) ...)

1995-02-25 22:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.36): Guarantee that the
	floating-point register stack is empty when moving from C to Scheme
	and vice-versa.  This appears to fix a floating-point stack
	overflow exception that has been observed under unix and OS/2.

1995-02-23 19:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: edextra.scm (1.20), floppy.scm (1.16), make.scm (15.22),
	pic-imag.scm (1.7), picture.scm (1.23), make.scm (15.23): Lots of
	changes to generalize this code for OS/2 and Windows.

1995-02-23 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2term.scm (1.5), edwin.pkg (1.164): Add some extra
	screen-manipulation procedures, one of which is needed by the 6.001
	support to allow a Scheme program to activate an editor screen.

1995-02-23 19:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2graph.scm (1.8), runtime.pkg (14.247): Final round
	of changes to get 6.001 images working right.

1995-02-23 19:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2ctype.scm (1.2): Put normalization case into
	CANONICALIZE-C-TYPE.

1995-02-23 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.184): Don't beep when ignoring evaluation
	environment -- it's too annoying.

1995-02-21 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/win32.pkg (1.6): No longer need to import most image
	procedures since they are in the global environment.

1995-02-21 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* win32/graphics.scm (1.7): Change to reflect changes to graphics
	type and image support in the runtime system.

1995-02-21 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/pic-imag.scm (1.6): Change to use IMAGE/CREATE instead of
	'CREATE-IMAGE graphics operation.

1995-02-21 18:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.22): Major cleanup of this file. 
	Generalization of graphics code to support OS/2.

1995-02-21 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2graph.scm (1.7), x11graph.scm (1.42), graphics.scm
	(1.15): Change IMAGE/CREATE to extract the image type from its
	device argument.

1995-02-21 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2graph.scm (1.6): Yet another cut at getting backing
	store and image stuff to work correctly.  Nearly done now.

1995-02-21 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.246): Various changes relating to
	graphics development.

1995-02-21 18:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2winp.scm (1.5): Add two new primitives, and export an
	operation to clobber the window field of an event -- thus allowing
	"user" events from graphics windows to contain the "user" graphics
	device rather than an internal descriptor.

1995-02-21 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.7): Put bullet-proofing code into
	OS2/FILE-TIME->STRING.	It turns out that CD-ROM root directories
	have unusual time stamps.

1995-02-21 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: graphics.scm (1.14), starbase.scm (1.12), x11graph.scm
	(1.41): Several sweeping changes to graphics and image types. 
	Graphics types now have their names associated with them so that
	code can dispatch on the name.	Each image type is now associated
	with a particular graphics type, so that it is possible to get the
	image type given a graphics type.  New procedures GRAPHICS-TYPE and
	IMAGE-TYPE provide very general ways to get pointers to such types.
	 New procedure GRAPHICS-TYPE-NAME gets the name of a graphics type.
	
	These changes necessitated some changes in the interface to the
	graphics type definitions.  In particular, there's no longer a
	procedure to register a graphics type's name, and also the
	procedure to construct a graphics type now accepts an additional
	argument, which is the name.

1995-02-21 18:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.11): New file "os2ctype.scm".

1995-02-21 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2ctype.scm (1.1): Initial revision

1995-02-21 17:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.5): Limit initial width of console window
	to 80 characters.

1995-02-21 17:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pros2pm.c (1.5), os2pm.c (1.7), os2pm.h (1.6),
	os2msg.h (1.7): Add new primitive OS2PS-GET-BITMAP and
	OS2PM-SYNCHRONIZE.  Fix some minor bugs in
	OS2PS-GET-BITMAP-PARAMETERS.

1995-02-16 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.304): Fix bug in redisplay: when variables
	that affect display (e.g.  truncate-lines) are changed, the window
	start marks must be erased.  Otherwise, the old start marks are
	used, and with the new display variables in effect, these marks
	could cause point to be left offscreen, or even force all of the
	buffer's text to be offscreen!

1995-02-16 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/image.scm (1.133): Reformat to meet page length and width
	standards.

1995-02-13 20:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uproc.scm (1.8): Add definition %ENTITY-EXTRA/APPLY-HOOK?
	so that Ziggy can identify internal data structure used to build
	apply-hooks out of entities.

1995-02-13 19:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.4): Change to use presentation space
	calls where appropriate now that low-level PM support has changed
	to separate PS calls from window calls.

1995-02-13 19:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.245): Update to match "os2graph.scm" and
	"os2winp.scm".

1995-02-13 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2graph.scm (1.5): Complete redesign uses bitmaps as
	backing store and transfers the appropriate part of the backing
	store to the screen using GpiBitBlt whenever the PM says it needs
	to be updated.

1995-02-13 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2winp.scm (1.4): Add new primitives.  Reorganize to
	make this easier to maintain.

1995-02-13 19:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.6): Change definition of
	OS2/FS-LONG-FILENAMES? so that it is true of any filesystem type
	except FAT.  This is still not accurate, but is a better default,
	since there are compression filesystems that have unusual types but
	also have long filenames.

1995-02-13 19:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.23): Redefine PATHNAME-WILD? under
	DOS/NT/OS2 so that it is true of any pathname containing a * or ?
	in its file-namestring.

1995-02-13 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/diros2.scm (1.1): Initial revision

1995-02-13 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.54), dired.scm (1.154), dirunx.scm (1.10),
	ed-ffi.scm (1.37), edwin.ldr (1.54), edwin.pkg (1.163): Add new
	file "diros2.scm" that supports compressed files under OS/2.

1995-02-13 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.7): Add support for compressed files.

1995-02-13 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.h (1.5), os2pm.c (1.6), pros2pm.c (1.4),
	os2msg.h (1.6): Rewrite bitmap support to make it be closer to the
	API calls.  This gives more power to the Scheme programmer at the
	expense of more datatypes and primitives.

1995-02-13 19:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2file.c (1.2): By default, don't allow opened file
	handles to be inherited by inferior processes.

1995-02-09 16:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.35): Fixed COMPILED-PROCEDURE/ENVIRONMENT
	not to SIGSEGV on compiled procedures which have no free variables.
	 This happened because the compiler failed to produce a dbg-block
	for the dbg-block/parent of the procedure's dbg-block.	An
	alternative fix would be to modify the compiler to insert the
	correct IC dbg-block instead of leaving it as #F.

1995-02-07 20:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2msg.h (1.5), microcode/os2pm.c (1.5),
	microcode/os2pm.h (1.4), microcode/pros2pm.c (1.3),
	runtime/os2graph.scm (1.4), runtime/os2winp.scm (1.3),
	runtime/runtime.pkg (14.244), edwin/edwin.pkg (1.162),
	edwin/os2term.scm (1.4): Reimplement OS/2 PM window support to
	separate the drawing operations from the windows.  All drawing
	operations now operate on objects that represent "presentation
	spaces"; a window has a PS associated with it, but it is now
	possible to create other PS objects that represent bitmaps. 
	Furthermore there are is a bitblt operation that can be used to
	move image data between bitmaps and windows.  All of this support
	allows Scheme to store its graphics output in bitmaps and to
	refresh the windows when needed, thus allowing efficient backing
	store for windows.

1995-02-07 18:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.16): Add code to preserve modification time
	stamp on copied files.

1995-02-07 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.c (1.5), os2top.c (1.11): Add more specific
	error messages to low-level message allocation code.

1995-02-07 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2fs.c (1.5): Never signal an error from file probe. 
	There are too many things that can go wrong, so it's pointless to
	try to enumerate them.

1995-02-07 18:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.113): Add hook for user action when new
	screen is created.

1995-02-07 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.12): Fix minor bug in M-x indent-c-exp. 
	Still needs a little work, but at least this one isn't as broken as
	the previous.

1995-02-02 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.11): Completely reimplement indentation rules
	for C statements appearing at the top level of a file (that is, not
	inside any parenthetical characters).  Old rules incorrectly
	indented the name line of a function definition that was written in
	the standard GNU style.  New rules correctly indent this case, and
	all of the other cases that I've tried so far.

1995-02-02 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/c-mode.scm (1.53): Fix bug in M-x electric-c-terminator: it
	was not correctly handling goto tags that contained _ or $.

1995-02-02 16:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.66): Change buffer search procedures to have
	their ending limit be optional.  This makes them more convenient to
	use and also makes them just like the buffer match procedures.

1995-01-31 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.243): Eliminate end-of-file markers.

1995-01-31 17:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.5): Temporary filenames now use long format
	which includes the Scheme PID if the filesystem that they are
	stored on supports long filenames.

1995-01-31 17:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.3): Add primitive to get Scheme's pid.

1995-01-31 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.6): Move OS2/FS-LONG-FILENAMES? to runtime
	system.

1995-01-31 17:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2graph.scm (1.3): Add SET-FONT operation to OS/2
	graphics windows.

1995-01-31 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2graph.scm (1.2): Implement window-manipulation
	procedures for OS/2 graphics windows.

1995-01-31 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.153), dirunx.scm (1.9): Remove key bindings
	for unix-specific Dired commands.

1995-01-31 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/compile.scm (1.4): Generalize for OS/2.

1995-01-31 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2api.h (1.5): Fix mismatch between two syscall name
	lists.

1995-01-31 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.25), runtime/dospth.scm (1.22),
	runtime/fileio.scm (1.9), runtime/io.scm (14.42),
	runtime/os2prm.scm (1.4), runtime/pathnm.scm (14.30),
	runtime/unxprm.scm (1.33), runtime/unxpth.scm (14.17),
	edwin/fileio.scm (1.124): Eliminate end-of-file marker handling
	code.  This is the code that used to handle ^Z in DOS files -- but
	the ^Z convention is very old and not worth putting in explicit
	support for.

1995-01-30 15:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.36): Fix bug reported by BAL:
	CALL-WITH-INPUT-COPIER was examining the value returned by
	OUTPUT-PORT/WRITE-SUBSTRING -- but that procedure has no useful
	value.

1995-01-25 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.54): Fix some more fencepost errors in the
	bit string copying code.

1995-01-23 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.53): Fix some fencepost errors in
	`copy_bits', and reformat the code to my standards.

1995-01-23 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.20), filcom.scm (1.183), os2.scm (1.5),
	process.scm (1.35), sendmail.scm (1.20), unix.scm (1.45): Eliminate
	several operating-system dependencies.

1995-01-19 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.4): Fix bug in presentation of pathnames to user
	-- if the pathname being presented is on a different device from
	the default, ENOUGH-PATHNAME cannot be used.  This is because
	ENOUGH-PATHNAME and MERGE-PATHNAMES treat the device as separate
	from the directory, whereas Edwin wants the device to be considered
	as part of the directory.

1995-01-16 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2io.c (1.3): Change SELECT-DESCRIPTOR to return
	process-status flag when appropriate.

1995-01-16 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pm.c (1.4): Change many of the fatal window-system
	errors to non-fatal warnings.  Expand the error/warning text to
	make it clearer and more useful.

1995-01-16 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2fs.c (1.4): Error pop-ups are now disabled all the
	time.  Additionally, catch more error codes when probing for file
	existence.  Most of the new error codes have to do with floppy
	drives.

1995-01-16 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2top.c (1.10): Disable random error/exception pop-ups
	generated by OS/2 kernel.

1995-01-16 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.182): Fix bug in pathname merging -- if the
	user specifies a device, don't merge in the default pathname's
	directory but instead start at that device's root directory.

1995-01-16 15:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2.scm (1.3): Fix bug in previous change:
	OS/NUMERIC-BACKUP-FILENAME? must return a pair consisting of the
	filename root and the backup version.

1995-01-16 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.161): Use new CREF directives to improve
	packaging.

1995-01-16 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.10): Fix bug in C indentation: side-effect
	occurring at wrong time caused temporary markers to lose their
	position.

1995-01-13 19:30  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.242): Exported
	*pp-arity-dispatched-procedure-style*.

1995-01-13 19:29  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/pp.scm (14.33): Taught the top level PP procedure about a
	range of new object types:
	
	 .  RECORDs with no recognised record type, WEAK PAIRs, and CELLs
	    print out a bit like named structures.
	
	 .  arity-dispatched-procedures (a kind of ENTITY) print out as a
	CASE
	    expression.  The style is controlled by
	    *pp-arity-dispatched-procedure-style*

1995-01-13 17:17  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.31): Changed all the default procedures for
	the entities for +, min, < etc to be named procedures.

1995-01-13 17:11  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.40): Fixed typo in previous edit.

1995-01-13 16:48  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.39): If an arity-dispatched-procedure has
	a named compiled procedure as the default then this procedure's
	name is used in printing the #[..] object.

1995-01-13 13:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/pp.scm (14.32): Added pretty printer method for CASE
	which works like this:
	
	  (case will-fit-on-line
	    clause
	    clause)
	or
	
	  (case
	      wont-fit-on-line
	    clause
	    clause)

1995-01-12 12:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.38): Entities used to inplement
	arity-dispatched-procedures print out slighty differently.

1995-01-12 12:02  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/uproc.scm (1.7): Added the predicate
	ARITY-DISPATCHED-PROCEDURE?, which is true for certain kinds of
	ENTITY.

1995-01-10 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: redpkg.scm (1.8), object.scm (1.8), make.scm (1.14): Add
	new directives INCLUDE and EXTEND-PACKAGE.

1995-01-06 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2ctty.c (1.3): Don't enable interrupts which
	currently have no handlers.

1995-01-06 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2ctty.c (1.2): Don't enable interrupts which
	currently have no handlers.

1995-01-06 17:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2top.c (1.9): Eliminate extra period in OS/2 error
	messages.

1995-01-06 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2top.c (1.7), os2top.c (1.8): Eliminate extra
	period in OS/2 error messages.

1995-01-06 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2fs.c (1.3): Signal error when attempting to read
	non-existant directory.

1995-01-06 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/rcs.pkg (1.5): Update to reflect change to runtime system.

1995-01-06 15:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/rcs.sf (1.7): Use LOAD-OPTION to load CREF.

1995-01-06 15:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.3): Change \\ to / in file specification so
	that unix systems won't get confused.

1995-01-06 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.160): Fix typos from last change.

1995-01-06 15:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2winp.scm (1.2), runtime.pkg (14.241): Add definition
	for OS2WIN-SET-MIX.

1995-01-06 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/conpkg.scm (1.5): Use explicit reference to
	SYSTEM-GLOBAL-ENVIRONMENT rather than #F in top-level IN-PACKAGE.

1995-01-06 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/cref.sf (1.8): Change 4-character suffixes used by package
	system to be 3-character suffixes.  This is done by defaulting the
	output file on the call to SF, which now generates the correct
	3-character suffix.

1995-01-06 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: reduct.scm (4.9), table.scm (4.4): Merge in #F/() bug fix
	from split code.

1995-01-06 13:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.56): Change 4-character suffixes used by
	package system to be 3-character suffixes.  This is done by
	defaulting the output file on the call to SF, which now generates
	the correct 3-character suffix.

1995-01-06 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.11), runtime/packag.scm (14.20),
	compiler/machines/alpha/compiler.sf (1.5),
	compiler/machines/C/compiler.sf (1.5), 6001/6001.sf (1.9),
	rcs/rcs.sf (1.6), win32/win32.sf (1.3), edwin/edwin.sf (1.12),
	compiler/machines/vax/compiler.sf (1.8),
	compiler/machines/spectrum/compiler.sf (1.17),
	compiler/machines/mips/compiler.sf-little (1.7),
	compiler/machines/mips/compiler.sf-big (1.7),
	compiler/machines/i386/compiler.sf (1.7),
	compiler/machines/bobcat/compiler.sf (1.17), cref/cref.sf (1.7):
	Change 4-character suffixes used by package system to be
	3-character suffixes.  This is done by defaulting the output file
	on the call to SF, which now generates the correct 3-character
	suffix.

1995-01-06 13:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: make.scm (4.31), toplev.scm (4.13), sf.sf (4.6): Change
	default output file name to be limited to a three character suffix.

1995-01-06 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syscall.h (1.8): Simplify interface to OS/2 API by
	moving all definitions to one file: "os2api.h".  By means of some
	trickery, this eliminates the OS/2 dependencies in "syscall.h". 
	Additionally, add definitions to allow preallocation of the heap's
	memory (which is temporarily disabled due to problems it causes
	during debugging).

1995-01-06 12:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.239), editor.scm (1.240): Fix problem with
	init-file loading: if the init file deletes the initial buffer or
	sets an inhibition flag, don't start the inferior REPL.

1995-01-06 12:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2api.h (1.4), os2top.c (1.6), config.h (9.86),
	boot.c (9.94): Simplify interface to OS/2 API by moving all
	definitions to one file: "os2api.h".  By means of some trickery,
	this eliminates the OS/2 dependencies in "syscall.h". 
	Additionally, add definitions to allow preallocation of the heap's
	memory (which is temporarily disabled due to problems it causes
	during debugging).

1995-01-06 12:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.35): Under OS/2, guarantee that
	correct number of type bits is used.

1995-01-05 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/shell.scm (1.12): Add OS conditionalizations so that OS/2
	can be supported.

1995-01-05 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.34): Add OS conditionalizations so that OS/2
	can be supported.  Change subprocess I/O to use input and output
	buffers so that end-of-line translation can be handled
	automatically by the runtime system.

1995-01-05 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/os2term.scm (1.2): Change to use runtime system's "os2winp"
	support.  Change corresponding to microcode which now supports
	multiple event queues for windows.  Add subprocess support. 
	Reimplement management of state so that windows are closed down
	properly when the editor is killed.  Change code that
	"controlifies" input characters -- previously it was not doing this
	correctly.  Change handling of paint events to clear the region
	being painted before drawing in it -- previously the microcode took
	care of this, but it no longer does so.

1995-01-05 20:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.2), unix.scm (1.44): Implement OS-specific
	part of subprocess support.

1995-01-05 20:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.121): Extend M-x count-lines to show the
	number of characters in the region as well as the number of lines.

1995-01-05 20:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.123): Change text-mode translation to be done
	during buffer read or write by means of the input/output-buffer
	abstractions in the runtime system.  This is MUCH faster than the
	mechanism previously implemented here.

1995-01-05 20:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: evlcom.scm (1.51), filcom.scm (1.181): Don't signal an
	error if a file has a "find-file initialization" that specifies an
	non-existent environment or syntax table.  Instead, just print a
	warning message and set the environment to the default.

1995-01-05 20:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.159): Change to use new CREF
	OS-conditionalization expression, so that this file can be shared
	between unix, OS/2, DOS, and Windows without editing.  Also add
	changes for OS/2 subprocess support.

1995-01-05 20:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.53): Change to load subprocess support for
	OS/2 as well as unix.

1995-01-05 20:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edtfrm.scm (1.88): Don't allow the mouse to select the
	typein window if it is inactive.

1995-01-05 20:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.238): Change loading of editor init file so
	that it is performed before starting the inferior REPL.  Also do
	not temporarily change the current buffer to a dummy buffer during
	this load.

1995-01-05 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dirunx.scm (1.8), vc.scm (1.17): FIND-PROGRAM is now
	operating-system specific.

1995-01-05 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.21): Generalize code that finds the extent of
	a partial filename that is to be subject to completion.  The
	generalization allows an operating system specific parsing method.

1995-01-05 19:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2winp.scm (1.1), os2graph.scm (1.1): Initial revision

1995-01-05 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.40): Implement COLOR? predicate to
	determine if a given graphics window supports color.

1995-01-05 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.240): Add OS/2 graphics.  Conditionalize
	loading of other graphics support so that only the support needed
	for the operating system is loaded.  Thus, unix systems won't load
	OS/2 graphics, and OS/2 systems won't load X graphics.

1995-01-05 19:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2dir.scm (1.4): Fix OS/2 directory sorting algorithm to
	be normal alphabetic sorting on the FILE-NAMESTRING.

1995-01-05 19:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.55): Console no longer does line
	translation, so writes to console must be conditionalized by OS to
	use the correct end-of-line sequence.
	
	Also, add initialization for OS/2 graphics.

1995-01-05 19:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.41): Change MAKE-INPUT-BUFFER and
	MAKE-OUTPUT-BUFFER to default to text mode rather than binary mode.
	 Ports that do not specify the mode usually want text mode. 
	Unfortunately, the DOS/NT microcode believes that the console is
	special -- the console microcode performs line translation directly
	on those systems -- and this must be changed now.

1995-01-05 19:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.10): Add new files for OS/2 graphics.

1995-01-05 19:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxprm.scm (1.32), os2prm.scm (1.3), dosprm.scm (1.24),
	dospth.scm (1.21): Add OS-specific definitions for EOL and EOF
	markers.

1995-01-05 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: toplev.scm (1.8), redpkg.scm (1.7): Don't look for old
	files with 4-character suffixes; this will just make bringing up
	the DOS version more difficult.

1995-01-05 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2proc.c (1.1): Initial revision

1995-01-05 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2io.c (1.3): Set the NOINHERIT bit in all channels,
	so that the handles associated with those channels will not be
	inherited by subprocesses.  The subprocess support will disable the
	bit in those channels that want to be inherited.

1995-01-05 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2pmcon.c (1.3): Fix some timing errors associated
	with opening the console window.

1995-01-05 18:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.c (1.3), os2pm.h (1.3), pros2pm.c (1.2): Change
	all coordinate variables from "unsigned short" to "short". 
	Implement operations needed to draw lines and points in windows, to
	determine the capabilities of the display, and to change the title
	bar of a window.  Extend the window-opening procedure to allow the
	window style to be specified.  Change PM primitives to allow
	multiple event queues, so that messages for graphics windows can be
	kept separate from messages for Edwin windows.

1995-01-05 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2msg.c (1.4): Add mechanism to "unread" messages back
	to the head of a message queue.  Add mechanism to get the other end
	of a qid pair.	Eliminate logic error that was being generated when
	sending a message to a qid whose other end had been closed (now we
	just discard the message).  Reimplement message queues to NOT use
	the OS/2 queue abstraction -- apparently these queues use quite
	alot of memory and I recently ran into a situation in which the
	memory was exhausted, which caused Scheme to die.  Now, the memory
	needed for the queues is taken from the Scheme process's virtual
	memory.

1995-01-05 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2msg.h (1.4): Add messages for graphics and
	subprocess support.  Also add new mechanism for "unreading"
	messages from a message queue.

1995-01-05 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosproc.c (1.14): IBM's OS/2 C runtime library doesn't
	have `environ' -- instead it has `_environ', which is equivalent --
	so add a conditionalized definition.

1995-01-05 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2io.c (1.2): Add subprocess changes to "select"
	support.

1995-01-05 18:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pros2fs.c (1.2): Implement DRIVE-TYPE primitive, which
	is used to distinguish between FAT and HPFS file systems where
	needed.  Also, change the appearance of the "mode string" returned
	by the FILE-INFO primitive.

1995-01-05 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2cthrd.c (1.4), os2cthrd.h (1.3), os2pipe.c (1.3):
	Change implementation of readahead in input channels that require
	it.  Readahead is now buffered in the input queue by means of a new
	operation to push a message back onto the head of the queue.  Also,
	there is now a mechanism to delay starting the readahead thread
	until the first read occurs on the channel -- this is used for
	input pipes that are passed to child processes and never read from
	the Scheme end.  It's important that such pipes not be read from.

1995-01-05 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2conio.c (1.5): Console must not perform newline
	translation -- that will be done by runtime system.  Implement
	changes so that console works correctly with "translated" input and
	output.

1995-01-05 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syscall.h (1.7), os2top.c (1.5): Add new system calls
	needed for OS/2 subprocess support.

1995-01-05 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2api.h (1.3): Eliminate "os2api.c" and add new system
	calls needed for subprocess support.

1995-01-05 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2.c (1.3): Put serializing lock in OS2_create_queue
	to guarantee atomic update to global counter variable.

1995-01-05 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.4): Change to use static linking. 
	Add support for subprocesses.  Delete "os2api.c".

1995-01-05 17:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.38): Added primitive INDEX-FIXNUM? from the
	split typecode system to allow some runtime files to be merged.

1995-01-05 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: redpkg.scm (1.6), toplev.scm (1.7), make.scm (1.13):
	Implement new OS-TYPE-CASE expression; this is used to have
	operating-system specific conditionalizations in the package file. 
	Also change all of the file types generated by CREF to be 3
	characters long instead of 4; the code will automatically rename or
	delete the old names when they are seen.

1994-12-19 18:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.158): Can no longer define (edwin
	win-commands) package because it now depends on other undefined
	win32 packages.

1994-12-19 17:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2.c (1.2), os2.h (1.3), os2api.h (1.2), os2conio.c
	(1.4), os2cthrd.c (1.3), os2env.c (1.2), os2fs.c (1.2), os2io.c
	(1.2), os2msg.c (1.3), os2msg.h (1.3), os2pm.c (1.2), os2pm.h
	(1.2), os2pmcon.c (1.2), os2top.c (1.4), os2utl/makefile (1.3):
	Many changes to support Edwin.	Converging on a final design for
	the OS/2 support.

1994-12-19 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/term.c (1.11): Reconditionalize so that OS/2 is handled
	much like Windows -- using message boxes to show fatal output
	rather than writing it on the controlling terminal as in unix.

1994-12-19 17:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syscall.h (1.6): Add some more OS/2 system calls.

1994-12-19 17:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/regex.c (1.15): Fix bug: must use signed character type
	when doing sign extension.  IBM's OS/2 C compiler makes characters
	unsigned by default.

1994-12-19 17:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/outf.c (1.6): Add support for OS/2 message boxes, and
	send standard I/O to the console window.

1994-12-19 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.93): Define hook to start interpreter for
	OS/2, needed in order to trap exceptions properly, much as in
	Windows.

1994-12-19 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2xcpt.c (1.1), pros2io.c (1.1), pros2pm.c (1.1):
	Initial revision

1994-12-19 17:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.35): Merge in changes from split-tag
	system.

1994-12-19 16:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.54): Merge in changes from split-tag system.

1994-12-19 16:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.34): Merge in changes for OS/2 and from
	new compiler.

1994-12-19 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.53): Change cold-load order to put
	INITIALIZE-SYSTEM-PRIMITIVES! before the thread initialization. 
	This is because OS/2 wants to initialize its select-registry
	mechanism before the thread initialization attempts to use it.

1994-12-19 16:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.33): Generalize HARDWARE-TRAP-FRAME/CODE
	to correctly handle OS/2 exception frames.

1994-12-19 16:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.20): Fix code to do directory
	simplification better.	Eliminate some more unnecessary
	restrictions.

1994-12-19 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2dir.scm (1.3): Tweak: OS/2 directory reader directly
	implements wildcard searches.

1994-12-19 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2prm.scm (1.2): Implement additional support needed for
	Edwin.

1994-12-19 16:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.42): Add code to handle OS/2 hardware
	exceptions.

1994-12-19 16:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.9): Add DOS and OS/2 files.

1994-12-19 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.15): In COPY-FILE, move mode-setting
	statement after closing of output file.  This is required under
	OS/2, since setting the file modes is prohibited for a file that is
	opened for writing.

1994-12-19 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.12): Implement and use new variable
	MICROCODE-ID/OPERATING-SYSTEM.

1994-12-19 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dosprm.scm (1.23), pathnm.scm (14.29), runtime.pkg
	(14.239): Implement and use new variable
	MICROCODE-ID/OPERATING-SYSTEM.

1994-12-19 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.157): Undo PC-specific changes from previous
	revision.  Add OS/2 files.

1994-12-19 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.156): Undo PC-specific changes from previous
	revision.  Add OS/2 files.

1994-12-19 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: os2.scm (1.1), os2term.scm (1.1), os2com.scm (1.1):
	Initial revision

1994-12-19 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.19), fileio.scm (1.122), unix.scm (1.43): Add
	new operating-system dependency: OS/SET-FILE-MODES-WRITABLE!.

1994-12-19 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.27), make.scm (3.85): Use new variable
	MICROCODE-ID/OPERATING-SYSTEM.

1994-12-19 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.180): Sort ed-ffi database after it is loaded
	in order to protect against user error in these files.

1994-12-19 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.53), ed-ffi.scm (1.36), edwin.ldr (1.52):
	Add OS/2 files.

1994-12-19 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.112): Fix bug that caused asynchronous thread
	events, and therefore C-g, to stop working after the first time C-g
	was typed.

1994-12-19 14:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/ansi.scm (1.7): Use new variable
	MICROCODE-ID/OPERATING-SYSTEM.

1994-12-15 17:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.34): Added check for valid
	dbg-procedure/block to avoid SIGSEGV with the (temporarily) broken
	new debug info.

1994-12-15 16:40  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/arith.scm (1.30): Changed the implementation of +, -, *,
	/, <, <=, =, >=, >, min and max (most of the user-level lexprs) to
	use entities.
	
	Naive uses of these procedures is now a lot faster, e.g.
	
		(sort! vector <)
	
	is just over twice as fast.

1994-12-08 22:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/macros.scm (1.1): Initial revision

1994-12-08 21:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/fixart.scm (1.1): Initial revision

1994-12-06 12:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.10): Used LOAD-OPTION to load cref.
	
	This ensures that, when cross-syntaxing, the host system's cref is
	loaded, not the cref from the target system.

1994-12-02 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2pm.c (1.1), os2pm.h (1.1), os2pmcon.c (1.1):
	Initial revision

1994-12-02 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.2): Changes for PM interface.

1994-12-02 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: outf.c (1.4), outf.c (1.5): Implement special support
	for OS/2 console.

1994-12-02 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2.h (1.2): Add PM interface header file.

1994-12-02 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2msg.h (1.2), os2msg.c (1.2), os2conio.c (1.3):
	Numerous changes driven by implementation of PM interface.

1994-12-02 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2cthrd.h (1.2), os2cthrd.c (1.2), os2pipe.c (1.2):
	Add "OS2_" prefixes to exported procedure names.  Implement
	"readahead buffer" abstraction.

1994-12-02 15:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2top.c (1.3): Change initialization sequence so that
	OS/2 can start up its console window before the first `outf' call
	occurs.  Also add initialization for PM console.

1994-12-02 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.92), uxtop.c (1.16), nttop.c (1.14),
	dostop.c (1.11): Change initialization sequence so that OS/2 can
	start up its console window before the first `outf' call occurs.

1994-12-02 11:42  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.238): I exported *pp-auto-highlighter*
	cph did something for os2.

1994-12-02 11:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/pp.scm (14.31): Added *pp-auto-highlighter*.
	
	When *pp-auto-highlighter* is #F (the default) pp behaves as
	before.
	
	When assigned a procedure of one argument this procedure is called
	for each part of the input tree.  It may return:
	
	 . #F  indicating that pp should proceed normally
	
	 . a new form which is pretty printed instead of the input, for
	   example, it may be wrapped with a highlight.

1994-12-01 20:50  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/parse.scm (14.27): Fixed string reading again.  This time
	it uses a string output prort to accumulate the characters.

1994-12-01 14:01  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/parse.scm (14.26): Fixed in PARSE-OBJECT/STRING-QUOTE to
	make it behave better when reading large strings with escapes. 
	Removed recursion and to reduced consing by doing a single
	string-append at the end rather than one per escape.
	
	Desirable for 7.3 release.

1994-11-28 03:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2term.c (1.2), os2conio.c (1.2): Fix think-o.

1994-11-28 02:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosterm.c (1.14): Add OS/2 console to list of
	terminal-like channels.

1994-11-28 02:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.40): Generalize runtime system's notion of
	"terminal" to coincide with that of microcode.	Add OS/2 console to
	list of terminal-like channels.

1994-11-28 00:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/os2dir.scm (1.2): [no log message]

1994-11-28 00:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: os2dir.scm (1.1), os2prm.scm (1.1): Initial revision

1994-11-28 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.19), make.scm (14.52), pathnm.scm
	(14.28), unxpth.scm (14.16): Eliminate "canonicalization" from
	pathname abstraction; this doesn't belong here.  Change pathname
	abstraction so that DOS, NT, and OS/2 can share an single pathname
	implementation.

1994-11-28 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/config.cmd (1.1): Initial revision

1994-11-28 00:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/makefile (1.3): Add rule to generate OS/2
	assembly language file.

1994-11-28 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.34): Tweak to last change.

1994-11-27 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.67): Clip out C_call_scheme under OS/2 --
	this isn't needed.

1994-11-27 23:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syscall.h (1.5): Final update for first working version
	of OS/2 port.

1994-11-27 23:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/posixtyp.h (1.11): Add conditionalizations for
	compiling with gcc under OS/2.

1994-11-27 23:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.40): Generalize handling of filenames to
	treat OS/2 like DOS and NT.

1994-11-27 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os2utl/makefile (1.1): Initial revision

1994-11-27 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.33): Add tweaks necessary to get
	this running under OS/2.

1994-11-27 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.85): Define a special hook to allow OS/2 to
	shut down its extra threads in an orderly way when Scheme exits.

1994-11-27 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.84), cmpintmd/i386.h (1.25): Add markers
	to identify procedures that are called from assembly language, so
	that they can be compiled with different calling conventions from
	the default.

1994-11-27 22:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.28): Supply missing definition needed for
	no-compiled-code support case.

1994-11-27 22:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.91), os2top.c (1.2), nttop.c (1.13),
	dostop.c (1.10), uxtop.c (1.15): Call dstack_initialize and
	transaction_initialize from main rather than from the
	operating-system specific initialization procedures.

1994-11-27 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os2.c (1.1), os2.h (1.1), os2api.h (1.1), os2conio.c
	(1.1), os2cthrd.c (1.1), os2cthrd.h (1.1), os2ctty.c (1.1),
	os2ctty.h (1.1), os2env.c (1.1), os2file.c (1.1), os2fs.c (1.1),
	os2io.c (1.1), os2io.h (1.1), os2msg.c (1.1), os2msg.h (1.1),
	os2pipe.c (1.1), os2term.c (1.1), os2thrd.c (1.1), os2thrd.h (1.1),
	os2top.c (1.1), os2tty.c (1.1), pros2fs.c (1.1): Initial revision

1994-11-27 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.39): Fix bug in previous change.

1994-11-26 14:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: rules3.scm (4.41.1.2), rulrew.scm
	(1.12.1.1), make.scm (4.89.1.1): Make source information propagate
	correctly

1994-11-26 14:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: toplev.scm (4.52.1.2), infnew.scm (4.11.1.1):
	Make source information propagate correctly

1994-11-20 17:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/framex.scm (14.18): Delay environment construction until
	after it is determined that the debugging info contains a valid
	environment.

1994-11-20 12:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/framex.scm (14.17): Add new compiled-code methods for new
	compiler.

1994-11-20 03:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.237): Export new names for
	channel-file-length etc.

1994-11-20 03:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosfile.c (1.7): Fix name conflict with new OS/2
	primitive FILE-LENGTH.

1994-11-20 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/notify.scm (1.15): Change to use new file-length procedure.

1994-11-20 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dosprm.scm (1.22), unxprm.scm (1.31), infutl.scm
	(1.57): Implement file-length procedure.

1994-11-20 00:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.14): Rename procedures:   file-length	   
	 => channel-file-length   file-position      =>
	channel-file-position	file-set-position  =>
	channel-file-set-position This is needed to free up `file-length'
	for use as a procedure that accepts a file name as argument and
	returns the file's length.

1994-11-20 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.39), runtime/fileio.scm (1.8),
	edwin/docstr.scm (1.2), edwin/fileio.scm (1.121): Rename
	procedures:   file-length	 => channel-file-length  
	file-position	   => channel-file-position   file-set-position  =>
	channel-file-set-position This is needed to free up `file-length'
	for use as a procedure that accepts a file name as argument and
	returns the file's length.

1994-11-19 19:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.38): Don't use `access' -- use
	`OS_file_access' instead.

1994-11-19 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fasl.h (9.36): Fix typo that causes compiler warning in
	OS/2 compiler.

1994-11-14 14:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.6): Removed unused procedure.  Added
	comment.

1994-11-14 13:51  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.5): Copyright date.

1994-11-14 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syscall.h (1.4), utils.c (9.66): More small changes
	for OS/2.

1994-11-14 00:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: os.h (1.5), osscheme.c (1.8), osscheme.h (1.9): More
	small changes for OS/2.

1994-11-14 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intrpt.h (1.18): Implement CLEAR_INTERRUPT_NOLOCK
	(needed for OS/2).

1994-11-13 21:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosio.c (1.12): Eliminate compiler warning.

1994-11-13 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/strpad.scm (1.7): Make WRITE-STRINGS-DENSELY more
	consistent -- it should not terminate its output with a newline.

1994-11-13 20:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.237): Reformat to eliminate over-long line.

1994-11-13 19:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osio.h (1.10), uxio.c (1.34), ntio.c (1.10), dosio.c
	(1.8), prosio.c (1.11), uxio.h (1.4), ntio.h (1.6), dosio.h (1.4):
	Eliminate old channel select registry mechanism.

1994-11-13 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.38): Eliminate unix-specific CHANNEL-TYPE=FOO?
	predicates.  Use new CHANNEL-TYPE-NAME primitive if it is
	available.

1994-11-13 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.236): Eliminate unix-specific
	channel-type=foo? predicates.

1994-11-13 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosio.c (1.10): Implement channel-type-name primitive,
	which should isolate the runtime system from definitions of
	microcode channel-type indices.

1994-11-13 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/osio.h (1.9): Expand channel_type table to include OS/2
	channel types.	Rename unix-specific channel types (defining old
	names as aliases).

1994-11-12 18:05  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/prgcop.scm (1.5): Attended to bugs in copying DEFINITIONS
	and SEQUENCEs.

1994-11-06 13:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/win32com.scm (1.3): Corrected a primitive's arity.

1994-11-06 13:13  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/graphics.scm (1.6): Added DESCRIPTOR->DEVICE argument to
	OPERATION/OPEN.  Graphics windows are now GC-ed and deleted before
	exit.

1994-11-06 13:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.39): [no log message]

1994-11-06 13:06  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: starbase.scm (1.11), graphics.scm (1.13):
	OPERATION/OPEN now takes an mandatory argument DESCRIPTOR->DEVICE
	which converts a descriptor into a user level GRAPHICS-DEVICE.
	
	This allows a graphics device implementation access to the user
	level GRAPHICS-DEVICE object at initialization time, which may be
	used in in protection lists etc (as is done in the win32
	implementation).

1994-11-04 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.37): Change printed representation of
	undefined values.

1994-11-04 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.13): Change ";No value" to ";No useful
	value" per discussion with Meyer.

1994-11-03 00:03  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.51): Fixed edwin.ldr.  Some files were loaded
	twice.
	
	Changed the selection of a default display type.
	
	If a display type is requested but is not available then an error
	is generated (the code used not to check).
	
	There is no longer a preference for the display type 'CONSOLE, so
	the list of defined types is always searched.  The initialization
	sequence in edwin.ldr is tterm before (xterm or win32), which puts
	the graphical display types ahead of the console in the display
	types list, and this places them at a higher desirability.
	
	Doing this revealed that the win32 availablility predicate was
	implemented incorrectly.

1994-11-02 23:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/: display.scm (1.6), editor.scm (1.236), win32.scm (1.3):
	Fixed edwin.ldr.  Some files were loaded twice.
	
	Changed the selection of a default display type.
	
	If a display type is requested but is not available then an error
	is generated (the code used not to check).
	
	There is no longer a preference for the display type 'CONSOLE, so
	the list of defined types is always searched.  The initialization
	sequence in edwin.ldr is tterm before (xterm or win32), which puts
	the graphical display types ahead of the console in the display
	types list, and this places them at a higher desirability.
	
	Doing this revealed that the win32 availablility predicate was
	implemented incorrectly.

1994-11-02 23:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/: bios.scm (1.4), tterm.scm (1.26): Fixes to allow bios and
	the new tterm to work together.

1994-11-02 15:45  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/wf_user.scm (1.4): New Win32 API procedures:  GET-FOCUS,
	SET-ACTIVE-WINDOW and SHOW-WINDOW.

1994-11-02 15:42  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.16): Turned on optimization for
	worthwhile files:
	
	  gcloop.c:   test gc improved from 1.71s to 0.84s.
	  fasload.c:  fasloading large files is 20% faster.
	
	(Of course, debugging problems in these areas will be hell, unless
	they optimizations are (trivially) turned back off).

1994-11-02 15:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.14): Rationalized or removed screen
	primitives to support the impoved Edwin Win32 Screen.

1994-11-02 15:30  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/ntgui.rc (1.8): Add Coffee Icon.  Update
	copyright date.

1994-11-02 15:25  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: ntscreen.c (1.22), ntscreen.h (1.10): Changes mainly
	to support the impoved Edwin Win32 Screen.
	
	 . Eliminated WM_ERASEBKGND.  Changed WM_PAINT to paint in the
	pixels
	   near the edge that WM_ERASEBKGND.  This change is more efficient
	   and avoids flicker on resizing.
	
	 . One icon per screen rather than one for all screens.
	
	 . Key and mouse messages are not converted into input events when
	   window is iconic
	
	 . Added a focus-tracking device for use by Edwin.  Re-worked Focus
	   and Caret code to get it right.
	
	 . Window text color defaults to the system default rather than
	black.
	
	 . New mode SCREEN_MODE_VK_KEYS controls whether arrow key events
	are
	   sent as special keys or emacs-ascii (^P for up etc).
	
	 . Minimum screen size is 3 rows of 5 columns, pending rework of
	edwin
	   to advise screen sizes

1994-11-02 15:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/coffee.ico (1.1): Initial revision

1994-11-02 15:07  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/conses.ico (1.2): Tidying.

1994-11-02 14:40  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.155): Changes for the new Win32 screen driver
	(which somehow got omitted last time), plus changes for the
	improvements.

1994-11-02 14:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/debug.scm (1.33): DEBUGGER-START-NEW-SCREEN? is now default
	true for all systems.  (This does the right thing for consoles,
	Xterms and Win32 screens.)

1994-11-02 14:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/win32com.scm (1.2): New command:
	
	  SET-ICON  sets the current screen's icon picture.
	
	New variables:
	
	  SCREEN-NAME-FORMAT
	  SCREEN-NAME-LENGTH
	
	These are like the X-* version, but no icons names as Windows does
	not make X's distinction between window and icon names.  Default
	values are same as for X.

1994-11-02 14:16  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/win32.scm (1.2): Improvements to the Win32 screen driver
	
	 . Rationalized names and the interface to some primitives.
	
	 . Added screen name feature (like X version)
	
	 . Ensured that windows are closed before exit / disk-restore.
	
	 . Fixed bug in screen resize (you *have* to guard against resizing
	to
	   the same size otherwise the rest of the system allocates new
	   matrixes and then decides to optimize the screen reorganization,
	   leading to random stuff being copied from the uninitialized
	   matrixes to the screen).
	
	 . The Close Window menu item now closes the window if there are
	more
	   than one, otherwise it behaves like ^X ^C
	
	 . Debugged multiple screens.  Added a whole load of black magick
	for
	   keeping Edwin's idea of the selected-screen in synch with the
	   Windows screen with the input focus.
	
	 . There is no need to hide the cursor (Caret) during redisplay as
	   windows does this anyway, and manually hiding it causes visible
	   caret flicker.

1994-11-01 21:20  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.167): Changing WITHOUT-INTERRUPTS to
	WITH-EDITOR-INTERRUPTS-DISABLED was not the right thing.
	
	WITH-EDITOR-INTERRUPTS-DISABLED is required in the running editor
	but the first buffer is created before the editor structure exists,
	and variables may be set as early as initial file load time (prior
	to dumping the band) -- e.g vc.scm.
	
	WITHOUT-EDITOR-INTERRUPTS choses to do either a WITHOUT-INTERRUPTS
	or a WITH-EDITOR-INTERRUPTS-DISABLED (confused?).  Perhaps
	WITH-EDITOR-INTERRUPTS-DISABLED ought to have this behaviour.

1994-11-01 18:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.85): Added a message to INFERIOR-REPL-DEBUG
	as this may take a long time when initially started.

1994-11-01 18:04  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/ansi.scm (1.6): Extended definition of ansi terminal driver
	trivially so that it matches the new termcap code.

1994-11-01 18:02  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.25): Added a feature to decode special keys
	that are defined in the termcap entry.	These now appear to Edwin
	as the special keys like up, left and f5.

1994-11-01 17:58  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/termcap.scm (1.6): Added termcap info for special keys (up,
	left, f5 etc).

1994-11-01 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.166): Change instances of without-interrupts
	to with-editor-interrupts-disabled.

1994-10-30 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.50): Change default for suspend files so
	that they are NOT generated by default.  These aren't used much and
	they quickly clutter the file system.

1994-10-28 01:58  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.20): I added hash-table/get-key which is
	useful when implementing sets and even more useful when using
	hash-tables to intern objects which you would also like to attach
	datums to.

1994-10-26 16:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/dos.scm (1.18): Fixed accidental damage to
	INSERT-DISRECTORY!

1994-10-26 14:42  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/win32.pkg (1.5): runtim => runtime

1994-10-26 14:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/win_ffi.scm (1.4): Fixed bug which caused an old wndproc to
	be associated with a new window if the handles were the same.

1994-10-26 14:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/win32.pkg (1.4): runtim => runtime

1994-10-26 14:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/wf_user.scm (1.3): Added DESTROY-WINDOW.  Edit IS-MENU =>
	IS-MENU? Fixed GetMenuString

1994-10-26 14:33  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/graphics.scm (1.5): Rationalized error reporting.

1994-10-25 21:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xcom.scm (1.12): Add aliases for the old x-FOO commands.

1994-10-25 19:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.79): Add new procedure COPY-COMMAND.

1994-10-25 11:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.21): Numerous changes, either bug fixes
	or changes to accomodate the new Edwin Win32 Screen.
	
	The events have been tweaked.
	
	Several entry points have been exported or written to allow
	efficient update of the display character grid by the new Edwin
	Win32 Screen driver.
	
	The display code has been fixed.  It was seriously broken and then
	heavily kludged-upon.  Now it does the right thing for WM_PAINT and
	WM_ERASEBKGND.	This fixes the windows 3.1 problem of repainting
	the whole screen of a resize.  It would probably be even better to
	eliminate WM_ERASEBKGND completely and make the resize code
	invalidate the orphan pixels which do not correspond to a character
	position.  This would prevent the `flash' as the screen is
	repainted after a resize and then repainted again after Edwin has
	decided (or not) to change the display (line wraps etc) to fit the
	new size.
	
	Keyboard.  Added direct code for all the `function' keys (like
	PgUp, f5 etc).	Removed MIT_TranslateMessage, which was the wrong
	thing because it screwed non-edwin windows (like buttons, dialogs,
	menus, ...).  Most of the keys are now handled specially at the
	WM_KEYDOWN level, avoiding WM_CHAR.  This makes it possible to
	generate something for C-7 and M-C-<key>.  This is done in a very
	US keybaord layout specific way.  The right thing is to ask what
	the key normally does (the KEYMAP program on the Developer's
	network does this) and then do the emacs thing only if the key is
	not o-umlaut or grave-accent-modifier (`deadkey') or whatever.

1994-10-25 10:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntscreen.h (1.9): See ntscreen.c

1994-10-25 10:41  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.13): Added primitives for efficient access
	to the screen window (ntscreen.c).

1994-10-25 10:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntenv.c (1.10): Changed OS_process_clock so that it
	returns the process time (rather than the real time) under NT (or
	any variant of Win32 that supports GetProcessTimes).

1994-10-24 21:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/: key-w32.scm (1.1), key-x11.scm (1.1), mousecom.scm (1.1),
	win32.scm (1.1), win32com.scm (1.1): Initial revision

1994-10-24 21:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/: calias.scm (1.15), debug.scm (1.32), decls.scm (1.52),
	ed-ffi.scm (1.35), edwin.ldr (1.50), edwin.pkg (1.154), modefs.scm
	(1.148), xcom.scm (1.11), xmodef.scm (1.2): Changes to merge with
	Win32 edwin screen driver and support.
	
	The main change is the addition of a new Edwin screen device for
	Win32.	The new device implements special keys and mouse buttons. 
	A certain degree of reorganization has been done to make the X and
	Win32 versions as similar as possible.	Some things that used to be
	called X-MUMBLE are now just called MUMBLE (e.g BUTTON1-UP,
	MOUSE-SET-POINT).
	
	New files:   win32.scm:     New screen device	win32com.scm: 
	Win32 specific commands   key-w32.scm, key-x11.scm:  System
	specific handling of special keys     (arrows etc).  These files
	replace key.scm   mousecom.scm: mouse commands, edited from
	xcom.scm
	
	Notable changes:   calias.scm: much of the old key.scm was moved
	here.  Now the keys	`f1', `up' etc are available in all Edwins,
	even if the keyboard	 cannot generate them.	(I have a prototype
	fix for the console	screen driver too).
	
	  debug.scm, modefs.scm, xmodef.scm: renamed and/or reorganized
	    bindings
	
	  xcom.scm: A whole lot of this moved to mousecom.scm

1994-10-24 21:44  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/dos.scm (1.17): Fix working-directory lossage.

1994-10-13 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/eystep.scm (1.2): Add new procedures YNODE-EXP-SPECIAL and
	YNODE-RESULT-SPECIAL to identify special markers within the ynode
	structure.

1994-10-13 00:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ystep.scm (1.2), edwin/edwin.pkg (1.153): Add new
	procedures YNODE-EXP-SPECIAL and YNODE-RESULT-SPECIAL to identify
	special markers within the ynode structure.

1994-10-12 03:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ystep.scm (1.1), edwin/eystep.scm (1.1): Initial revision

1994-10-12 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.16): Fix bug in SPLIT-INTERVAL-LEFT!: because
	the splitting process could insert a new interval node in a
	non-leaf position, one of the assumptions of INSERT-FIXUP! was
	violated.  This is fixed by making sure that the inserted node is
	always inserted in a leaf position.

1994-10-11 21:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.16): All existing calls to CURRENT-VC-MASTER
	require the optional #T argument because the callers cannot handle
	a returned value of #F.

1994-10-11 21:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.31): Fix typo in previous change.

1994-10-11 20:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: schmod.scm (1.37), loadef.scm (1.26), edwin.pkg (1.152),
	ed-ffi.scm (1.34), decls.scm (1.51): Add autoloaded stepper
	support.  Requires corresponding support in runtime system.

1994-10-11 19:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.8): Add stepper to runtime system as load
	option.

1994-10-11 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debug.scm (1.30), txtprp.scm (1.15), edwin.pkg (1.151):
	Move HIGHLIGHT-REGION-EXCLUDING-INDENTATION to "txtprp.scm" and
	export it to the edwin package.

1994-10-11 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.29): Change
	HIGHLIGHT-REGION-EXCLUDING-INDENTATION to have same interface as
	HIGHLIGHT-REGION.

1994-10-11 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.32): Fix think-o that resulted in unused
	variable.

1994-10-11 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.235), optiondb.scm (1.2): Add stepper
	to runtime system as load option.

1994-10-10 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.41): Use SYSTEM-CALL-ERROR-MESSAGE
	primitive to allow microcode to provide more meaningful error
	messages if possible.  If the microcode is unable to provide an
	error message, fall back to the previous strategy.

1994-10-09 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fft.c (9.32): Eliminate random control characters in
	source text.

1994-10-09 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.118), info.scm (1.119), tximod.scm (1.19):
	Eliminate random control characters in source text.

1994-10-08 04:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.49): Use new NO-ERROR optional argument to
	LOAD-OPTION to prevent errors if the KRYPT option is not present.

1994-10-08 04:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.31): Add optional argument to LOAD-OPTION;
	this is a flag that says to not signal an error if the option is
	unknown.

1994-10-08 01:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxtop.c (1.14), dostop.c (1.9), nttop.c (1.12):
	Eliminate compiler warning from previous change.

1994-10-07 18:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.7): Fixed a bug in the directory read whereby
	the OS handle was never closed.  This manifested under Windows 3.1
	as Edwin being unable to do filename completion or file saving
	after 32 handles were opened but never closed.
	
	This fix should go in the 7.3 release.

1994-10-07 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/oscond.h (1.18): Fix OS/2 conditionalizations.

1994-10-07 16:04  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/dos.scm (1.16): Undid previous ill-thought-out edits to the
	backup file name stuff.

1994-10-07 15:59  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/dos.scm (1.15): [no log message]

1994-10-05 23:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/tests/CLIPBRD.SCM (1.1): Initial revision

1994-10-05 13:57  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.12): Removed some opportunities for GC to
	cause a side-effecting primitive to be restarted.

1994-10-05 12:49  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/interp.h (9.40): Changed macro
	IMPORT_REGS_AFTER_PRIMITIVE to import the History because the
	primitive may have (indirectly) called C_call_scheme to recursively
	enter the interpreter which will may rotate the History.

1994-10-04 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.76): Add new OS-dependent mechanism for
	building the system-call names tables that the runtime system uses
	for detecting and reporting system-call errors.  This change is
	upwards compatible with previous versions of the microcode and also
	with previous versions of the runtime system.

1994-10-04 18:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.89), boot.c (9.90), version.h (11.148): Add
	new OS-dependent mechanism for building the system-call names
	tables that the runtime system uses for detecting and reporting
	system-call errors.  This change is upwards compatible with
	previous versions of the microcode and also with previous versions
	of the runtime system.

1994-10-04 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxtop.c (1.13), boot.c (9.88), utabmd.scm (9.75),
	nttop.c (1.11), dostop.c (1.8), intern.c (9.54): Add new
	OS-dependent mechanism for building the system-call names tables
	that the runtime system uses for detecting and reporting
	system-call errors.  This change is upwards compatible with
	previous versions of the microcode and also with previous versions
	of the runtime system.

1994-10-04 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: oscond.h (1.16), oscond.h (1.17), posixtyp.h (1.10),
	intrpt.h (1.17): Add conditionalizations for OS/2.

1994-10-03 13:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/optiondb.scm (1.1): Initial revision

1994-10-03 13:30  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/option.scm (14.30): Changed LOAD-OPTION yet again:
	
	 . options are specified in a Scheme file (optiondb.scm), instead
	of
	   using a data file (options.db).
	
	 . options can be defined at the scheme REPL or in a .scheme.init
	file

1994-10-03 13:27  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.234): Changes for new LOAD-OPTION system:
	Export constructors for definine load options.

1994-09-29 22:50  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.233): Sorry, that was
	*INITIAL-OPTIONS-FILE*.

1994-09-29 22:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.232): Exported
	*INITIAL-OPTIONS-FILE-PATHNAME*

1994-09-29 22:37  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/option.scm (14.29): Changed LOAD-OPTION to use database
	in separate file(s):
	
	Features:
	
	 . No longer need to rebuild bands to make options available.
	 . The database is re-read so new options become available without
	   restarting Scheme.
	 . Option databases have a `parent' field (like an environment
	frame)
	   which allows the database to be tiered.
	 . The databse format (s-expression) is documented in options.db

1994-09-29 11:54  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/utils.c (9.65): Changed C_call_scheme to preserve and
	restore `last_return_code'.  This fixes a bug which manifests as an
	access violation during GC.
	
	The GC bug happened because the incorrect value of
	`last_return_code' left after the recursive interpretation caused a
	negative stack segment size to be computed.  When this was boxed as
	an unsigned value it became an illegal pointer object.	Note that
	this manifestation would not have happened with the new tagging
	scheme.

1994-09-28 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.49): Attempt to simulate load-pathname and
	after-load-hooks in load-packed-binaries.  New "make" files in
	subdirectories depend on this.

1994-09-28 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirunx.scm (1.7): Eliminate compiler warning.  Shorten page
	to 80 lines.

1994-09-28 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.56): Fix minor type error in X-LIST-FONTS.
	 Rearrange code slightly.

1994-09-26 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.33): Fix typo in previous change.

1994-09-21 02:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppanwca.c (1.3): Update instructions.
	
	Add definition of _HPUX to make it compile correctly.

1994-09-19 16:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.4): 1. Fixed #F/() bug in NODE/FIND 2.
	Declared many define-structure slots as READ-ONLY.

1994-09-17 13:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/x11base.c (1.55): Added X-LIST-FONTS primitive.

1994-09-16 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.30): Treat LET* and LETREC specially, just
	like LET.

1994-09-16 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.54): Fix think-o in
	X-WINDOW-FONT-STRUCTURE.

1994-09-16 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.50): Change default for
	evaluate-in-inferior-repl to #t.

1994-09-15 20:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.84): Flush input queue of inferior REPL
	thread when abort interrupt is signalled.

1994-09-14 19:01  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/x11base.c (1.53): Changed font structure stuff. 
	X-FONT-STRUCTURE checks for sufficient heap to allocate the
	structure so that it will always match an XLoadQueryFont with and
	XFreeFont.
	
	New primitive X-WINDOW-FONT-STRUCTURE returns the font structure
	associated with the window.

1994-09-14 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirunx.scm (1.6): Fix type error in M-x dired-do-compress.

1994-09-14 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirunx.scm (1.5): Fix type error in M-x dired-do-compress.

1994-09-08 21:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/compile.scm (1.3): Added M-x grep.  Sorry, no error parsing
	yet.

1994-09-08 21:21  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/vc.scm (1.15): Fix #f/() bug in VC-COMMAND-ARGUMENTS.

1994-09-08 17:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.150): Added exports to support
	CHAR-IMAGE-STRINGS buffer-local variable.

1994-09-08 16:34  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.50), bufwfs.scm (1.19), bufwin.scm (1.303),
	bufwiu.scm (1.29), bufwmc.scm (1.17), comred.scm (1.111), image.scm
	(1.132), iserch.scm (1.20), modlin.scm (1.19), motion.scm (1.86),
	struct.scm (1.90), winout.scm (1.9): Added support for customizable
	imaging of characters.	The per-buffer variable CHAR-IMAGE-STRINGS
	holds a vector of 256 string which determine how characters are
	displayed.  Using an approriate vector will allow the use of fonts
	with extra characters, `hex' displays, compound characters for
	displaying ISO Latin text in plain ASCII and lots of other tricks.
	
	Main components of this update:  . image.scm to pass in the
	char-image-strings  . bufwin.scm to cache the buffer-local variable
	 . callers of the imaging routines now get the caches variable	 
	and pass it to the imaging routines.   . fixed a few buglets in the
	caching of buffer-local variables   . changed the criteria for
	calling the direct-output operations so that	 they are only used
	for characters or strings which will be displayed     as themselves
	(comred.scm, winout.scm).

1994-09-07 21:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwin.scm (1.302), bufwiu.scm (1.28): Guarantee that
	buffer-local variables are cached in the window before any
	redisplay can happen.

1994-09-02 18:41  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.21): Fixed illegal-interrupt-handler to
	clear the bit so that the interrupts has been cleared when the
	error repl re-enables all interrupts.

1994-09-01 18:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/record.scm (1.23): Fixed SIGSEGV bug in
	%record-application-method.

1994-08-24 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.27): In %NOTICE-WINDOW-CHANGES!, handle cases
	where GROUP-START-CHANGES-INDEX is #F.

1994-08-24 15:57  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/utils.scm (1.38): Fixed typo.

1994-08-24 15:50  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/utils.scm (1.37): Changed string-allocate and
	set-string-maximum-length to be primitives if the non-primitive
	version is interpreted (not compiled).	The non-primitive versions
	in this file to not run interpreted.

1994-08-19 02:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.29): Change default for PP to be AS-CODE.

1994-08-18 15:50  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.17): Changed unsyntaxing of constants to be
	more R4RS-ish.	Now the empty list and vectors are unsyntaxed as
	quotations.

1994-08-15 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.83): Eliminate prefix spacing for READ
	input-port operation on interaction buffer.

1994-08-15 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (14.22), runtime/dbgcmd.scm (14.15),
	runtime/rep.scm (14.50), edwin/intmod.scm (1.82): Change previous
	kludge: now, PROMPT-FOR-COMMAND- procedures accept a prompt which
	is a pair whose car is the symbol STANDARD and whose cdr is a
	string.  Such a prompt is treated exactly as a bare string used to
	be.  Now, a bare string is used directly as the prompt with no
	modification at all.

1994-08-15 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.12): Change previous kludge: now,
	PROMPT-FOR-COMMAND- procedures accept a prompt which is a pair
	whose car is the symbol STANDARD and whose cdr is a string.  Such a
	prompt is treated exactly as a bare string used to be.	Now, a bare
	string is used directly as the prompt with no modification at all.

1994-08-15 15:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.11): Kludge in more complicated support for
	PROMPT-FOR-COMMAND- procedures.  These procedures now append spaces
	only to the standard prompts.  Furthermore, the level number is
	printed on the standard console only for these prompts.

1994-08-15 15:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: port.scm (1.8), runtime.pkg (14.231), emacs.scm
	(14.21): Add additional kludge so that Emacs port is properly
	copied to all of the standard places.

1994-08-15 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.81): Eliminate gratuitous space from command
	prompt.  This space is filled in by the PROMPT-FOR-COMMAND-
	procedures anyway.

1994-08-12 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.29): Fix +, -, *, and / so that they are
	consistently left-associative.

1994-08-05 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.28): Change printing of +0.i and -0.i to be
	+0.i instead of -0.i

1994-08-04 11:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.230): [no log message]

1994-08-04 11:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.36): Changed *unparse-with-addresses?* to
	*unparse-with-datum?*

1994-08-04 04:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.149): Rename DIRED-COMPRESS to
	DIRED-DO-COMPRESS.  Eliminate DIRED-UNCOMPRESS.

1994-08-04 04:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirunx.scm (1.4): Change commands to act on marked files
	and take prefix argument just like other file commands.

1994-08-04 04:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.152): Rearrange key bindings to be closer to
	those of Emacs 19.  Fix bug in DIRED-REDISPLAY.

1994-08-04 03:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.151): Make DIRED-MARKED-FILES do a
	case-insensitive comparison.

1994-08-04 02:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.150): Add declaration to eliminate compiler
	warning.

1994-08-04 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.149), edwin.pkg (1.148): Change commands
	that act on marked files so that they don't unmark the files. 
	Implement M-DEL to allow unmarking of many files at once.  Change
	M-x dired to select first nontrivial line on first selection, and
	not to re-read the directory on subsequent selection (both as in
	Emacs 19).

1994-08-03 20:26  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.229): Exported *unparse-with-addresses?*
	flag from unparser package.

1994-08-03 20:25  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.35): Added *unparse-with-addresses?* flag
	for default unparser method.

1994-07-24 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uerror.scm (14.39), uerror.scm (14.40): Add entry to
	trap system-call errors for the delete-directory primitive and
	convert them into file-operation errors.

1994-07-16 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.6): Eliminate case where over-long literal
	was being emitted.

1994-07-16 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.5): Check for and eliminate case which was
	emitting a copy command of length one.	Such a command is
	ill-formed and should not be emitted.

1994-07-04 02:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.28): From MT: Fix bug in
	HIGHLIGHT-REGION-EXCLUDING-INDENTATION -- a fencepost error that
	occurs when the region ends at the buffer's end.

1994-06-28 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dmpwrld.c (9.38), config.h (9.84): Update old
	conditionalization based on "unix".

1994-06-28 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/step.c (9.32): Correct comments describing stepper
	primitives.

1994-06-21 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (4.29), cref/make.scm (1.11), sf/make.scm (4.30),
	edwin/make.scm (3.84), cref/make.scm (1.12): Disregard working
	directory when file is loaded; use directory that file is loaded
	from instead.

1994-06-19 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gensym.scm (14.4): Change action of argument to
	GENERATE-UNINTERNED-SYMBOL: a symbol or string argument affects the
	result for that call only.

1994-06-02 17:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.30): Patch UNIX/SYSTEM so that it works
	properly when the working directory is different from that of the
	microcode and when multiple threads are in use.

1994-06-02 15:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.84): Patch to fix long-standing bug in
	forcing of promises.

1994-06-02 15:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: interp.c (9.82), interp.c (9.83): Patch to fix
	long-standing bug in forcing of promises.

1994-05-30 02:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.228): Export EQV-HASH and EQUAL-HASH.

1994-05-30 02:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.19): Rewrite EQV-HASH-MOD and
	EQUAL-HASH-MOD so that EQV-HASH and EQUAL-HASH can be exported.

1994-05-20 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.148): Fix think-o.

1994-05-20 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.147): Don't advance to next line when
	executing dired-do-rename.

1994-05-18 20:05  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntsig.c (1.16): Extended catatonia timeout to 120s -
	much more reasonable on slow machines.

1994-05-13 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.100): Use new optional argument to
	FIND-BUFFER to eliminate random errors caused by commands being
	passed names of non-existent buffers.

1994-05-13 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.112): Add optional arg to FIND-BUFFER which
	says to signal error if buffer doesn't exist.

1994-05-04 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.146): Delete empty directories when requested.

1994-05-04 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.36): Implement DELETE-DIRECTORY-NO-ERRORS.

1994-05-04 18:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: rmail.scm (1.33), fileio.scm (1.120), autosv.scm (1.30):
	Use DELETE-FILE-NO-ERRORS instead of DELETE-FILE and
	CATCH-FILE-ERRORS.

1994-05-04 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.13): Change DELETE-FILE-NO-ERRORS to return
	a flag indicating its success.

1994-05-03 04:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.31): Rewrite code that the Sun compiler
	won't accept.

1994-05-02 15:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.20): Fix typo.

1994-04-30 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.146.1.1): Update for release 7.3.1.

1994-04-30 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.14): Fix think-o in VC-DIFF.

1994-04-30 03:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.217.1.1): Changes from between revisions
	14.220 and 14.221.

1994-04-30 02:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.37): Undo gratuitous format changes from
	previous revision.

1994-04-30 02:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.63.1.1): Same changes as those between
	revisions 9.64 and 9.65.

1994-04-30 02:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.75.1.1): Same changes as those between
	revisions 9.77 and 9.78.

1994-04-28 23:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/kryptdum.scm (1.1): Initial revision

1994-04-23 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comhst.scm (1.4): Change command history to keep track of
	the previous history insertion correctly so that text inserted
	adjacent to the inserted item does not get included within it.

1994-04-23 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.80): Change nesting to guarantee that
	inferior REPL output mark is grabbed within the interrupt-locked
	region.

1994-04-22 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.79): Change handling of inferior REPL output
	so that it does not affect the point of the inferior REPL buffer,
	and so that insertions to the right of the output mark remain to
	its right when output occurs.  Additionally, implement new editor
	variable to control whether output from evaluation commands in
	other buffers cause the evaluation results to be written to the
	REPL buffer.

1994-04-22 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: intmod.scm (1.78), edwin.pkg (1.147): Change handling of
	inferior REPL output so that it does not affect the point of the
	inferior REPL buffer, and so that insertions to the right of the
	output mark remain to its right when output occurs.  Additionally,
	implement new editor variable to control whether output from
	evaluation commands in other buffers cause the evaluation results
	to be written to the REPL buffer.

1994-04-22 00:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.12): Allow first argument to
	MAKE-GRAPHICS-DEVICE to be optional.

1994-04-19 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.227): Export FLO:RANDOM-UNIT from the
	random number generator.

1994-04-19 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.10): Use a flonum vector instead of a
	vector to hold the state of the RNG.  Rename GET-NEXT-ELEMENT to
	FLO:RANDOM-UNIT so that it can be exported to the global
	environment.

1994-04-05 17:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/: hppa.m4 (1.35), hppa.m4 (1.36): Eliminate
	assembly code to perform FIX/FLO and FLO/FIX cases of generic
	binary operations.  This code was OK for + and - but failed to
	produce correct answer for * and / when one argument was exact
	zero.

1994-03-30 16:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (4.22.1.1), rcse2.scm (4.13.1.1),
	rcseep.scm (4.6.1.1), rcseht.scm (4.12.1.1), rcserq.scm (4.5.1.1),
	rdebug.scm (1.2.1.1), rdflow.scm (1.2.1.1), rinvex.scm (1.7.1.1),
	rlife.scm (1.60.1.1), rtlcsm.scm (1.1.1.1): Snapshot of new
	compiler.

1994-03-30 16:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/spectrum/machin.scm (4.29.1.1),
	machines/spectrum/rules1.scm (4.35.1.1),
	machines/spectrum/rules2.scm (4.13.1.1),
	machines/spectrum/rules3.scm (4.41.1.1),
	machines/spectrum/rules4.scm (4.12.1.1),
	machines/spectrum/rulfix.scm (4.46.1.1),
	machines/spectrum/rulflo.scm (4.39.1.1), rtlbase/rtlcfg.scm
	(4.8.1.1), rtlbase/rtlexp.scm (4.19.1.1), rtlbase/rtline.scm
	(4.10.1.1), rtlbase/rtlreg.scm (4.5.1.1), rtlbase/rtlty1.scm
	(4.21.1.1), rtlopt/rcompr.scm (1.14.1.1): Snapshot of new compiler.

1994-03-30 16:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/asstop.scm (1.10.1.1), base/debug.scm (4.13.1.1),
	base/make.scm (4.106.1.1), base/switch.scm (4.24.1.1),
	base/toplev.scm (4.52.1.1), base/utils.scm (4.19.1.1),
	machines/spectrum/compiler.pkg (1.46.1.1),
	machines/spectrum/compiler.sf (1.16.1.1),
	machines/spectrum/dassm1.scm (4.18.1.1),
	machines/spectrum/decls.scm (4.34.1.1),
	machines/spectrum/lapgen.scm (4.46.1.1),
	machines/spectrum/lapopt.scm (1.14.1.1): Snapshot of new compiler.

1994-03-30 16:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/: lapgn1.scm (4.16.1.1), lapgn2.scm (1.20.1.1),
	linear.scm (4.16.1.1), mermap.scm (1.4.1.1), regmap.scm (4.12.1.1):
	Snapshot of new compiler.

1994-03-28 17:33  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/README (1.3): fixed xrefs

1994-03-28 17:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/memmag.c (9.57): Fix comment.

1994-03-28 06:08  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/README (1.2): pretty pretty texinfo kludge

1994-03-28 02:19  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/README (1.1): Initial revision

1994-03-28 02:06  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/: wabbit.pkg (1.1), wabbit.sf (1.1), wabbit.cbf (1.1):
	Initial revision

1994-03-28 01:14  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/option.scm (14.28): add wabbit/headhunt load option
	rename pcsample option loader to "load" (from "make").

1994-03-27 21:15  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.74): typo

1994-03-25 16:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.73): Add GC-WABBIT-DESCRIPTOR.

1994-03-24 20:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.15): Add wabbit.c to ordinary
	scheme's gc files.

1994-03-24 20:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fixobj.h (9.37): Add wabbit-hunting slot.

1994-03-24 19:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wabbit.c (1.3): Keep track of last_object better,
	because there are closure patterns embedded in compiled code blocks
	on the Snakes.

1994-03-24 13:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.226): Fix exports of (runtime unsyntaxer)

1994-03-24 13:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.34): Print #!aux as itself.

1994-03-24 13:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.225): Export lambda-auxiliary-tag to
	several other places.

1994-03-24 13:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/parse.scm (14.25): Variable name mismatch.

1994-03-23 17:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.145): Change predicate in DIRED-MARKED-FILES
	in order to speed up search for marked files.  New predicate does
	much less work for lines that are not marked.

1994-03-22 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.16): Change definition of
	UNSYNTAXER:MACROIZE? so that if it is not #F and not #T then it
	means "don't macroize but hide internal lambda structures".

1994-03-22 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: parse.scm (14.24), unsyn.scm (14.15), runtime.pkg
	(14.224): Kludge: allow parser to recognize #!aux.

1994-03-22 12:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.32): Fix bug in M-x rmail-search: when search
	locates the regexp in a message that has not yet been selected, the
	mark yielded by the search must be made permanent before the
	message is selected, because selecting the message changes its
	attributes, and consequently alters the amount of text preceding
	the mark.

1994-03-21 15:16  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/lambdx.scm (14.7): FIxed #F/() bug

1994-03-18 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.13): Fix typo in previous change.

1994-03-18 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comtab.scm (1.65), comtab.scm (1.66): Fix kludge that
	defines upcased alias for keys that have char bits set; previously
	it only worked for keys that had zero bits.

1994-03-18 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.12): Implement vc-insert-headers.

1994-03-16 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.83): Numerous changes whose overall goal was
	the replacement of the old RCS interface with an Emacs-19-like VC
	interface.

1994-03-16 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.147): Bind C-x v d to vc-directory.

1994-03-16 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.11): Implement VC-DIRED and VC-DIRECTORY
	commands.  Generalize various commands to work in Dired buffers.

1994-03-16 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.144), dos.scm (1.14), edwin.pkg (1.146),
	filcom.scm (1.179), unix.scm (1.42): * Enhance dired to allow
	specification of a list of files in a	specific directory in place
	of a directory.
	
	* Change OS-specific code for dired to be a single entry point,  
	INSERT-DIRECTORY!, that can insert the listing for a single file, a
	  whole directory, or a wildcarded expression.
	
	* Add new procedure, FOR-EACH-DIRED-MARK, that maps a procedure
	over   the marked files in a dired buffer, and unmarks each file as
	it is	processed.

1994-03-13 00:09  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* runtime/packag.scm (14.19): Fix rebinding of load/default-types.

1994-03-11 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.146): Bind
	SHRINK-WINDOW-IF-LARGER-THAN-BUFFER to `C-x -'.

1994-03-11 00:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.143): Use SHRINK-WINDOW-IF-LARGER-THAN-BUFFER
	to implement special pop-up prompts for Dired (as in Emacs 19).

1994-03-11 00:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.117): Implement
	SHRINK-WINDOW-IF-LARGER-THAN-BUFFER.

1994-03-11 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.29): Implement FILE-EXECUTABLE?.  Tweak
	logic in FILE-WRITABLE?.

1994-03-11 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.12): Change COPY-FILE to preserve file
	modes.

1994-03-11 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.56): Handle case where temporary file is
	manually deleted behind Scheme's back.

1994-03-09 19:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.142), edwin.pkg (1.145): Eliminate
	idiosyncratic multiple-file copying commands in favor of Emacs 19
	generalized marking and copying commands.  Rename several commands
	to match the new Emacs 19 names.

1994-03-09 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.10): Fix typo in VC-RUN-SHELL-COMMAND.

1994-03-09 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.9): * Attach VC-PARENT-BUFFER property to vc-log
	buffers.  Use that   property to make some of the VC commands work
	from the log buffer.	In particular, the VC-DIFF command now
	works from the log buffer.
	
	* Generalize the log-buffer mechanism to allow multiple log buffers
	to   be open simultaneously.

1994-03-08 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.8): Use new 'NO-OUTPUT display style to suppress
	visible changes to the screen when reverting a buffer.

1994-03-08 17:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: screen.scm (1.104), screen.scm (1.105): Add 'NO-OUTPUT
	display-style option which does full update of internal data
	structures, but does not update the screen.

1994-03-08 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.7): Attempt to preserve the WINDOW-START-MARK of
	a buffer's window when the buffer is reverted.

1994-03-08 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: vc.scm (1.5), vc.scm (1.6): Attempt to preserve the
	WINDOW-START-MARK of a buffer's window when the buffer is reverted.

1994-03-08 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.4): Attempt to restore the "current" window that
	was in effect when the log entry was started.

1994-03-08 16:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.3): Implement VC-LIST-LOCKED-FILES.

1994-03-08 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.111): Disallow window commands to select
	other screens by default.  This behavior must be requested by
	setting USE-MULTIPLE-SCREENS true.

1994-03-08 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/vc.scm (1.2): Fix random bugs in VC-VERSION-OTHER-WINDOW.

1994-03-08 15:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.145): Add new definitions for VC.

1994-03-08 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.144), edwin.ldr (1.48), decls.scm (1.50),
	ed-ffi.scm (1.33): Replace "rcs" with "vc" and "rcsparse".

1994-03-08 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: rcsparse.scm (1.1), vc.scm (1.1): Initial revision

1994-03-08 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.162): * Change reference to
	*PREVIOUS-POPPED-UP-BUFFER*.
	
	* Add extra optional argument to PROMPT-FOR-ALIST-VALUE; new arg  
	controls case-sensistivity of match.

1994-03-08 15:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.143): Export new definitions for MODE-NAME,
	MINOR-MODE-ALIST, and supporting procedures.

1994-03-08 15:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.49), editor.scm (1.235): * Change
	definitions of and references to *PREVIOUS-POPPED-UP-WINDOW*,  
	*PREVIOUS-POPPED-UP-BUFFER*, and *MINIBUFFER-SCROLL-WINDOW*; they  
	are now bound to weak pairs instead of hash numbers.

1994-03-08 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.116): * Change definitions of and references
	to *PREVIOUS-POPPED-UP-WINDOW*,   *PREVIOUS-POPPED-UP-BUFFER*, and
	*MINIBUFFER-SCROLL-WINDOW*; they   are now bound to weak pairs
	instead of hash numbers.
	
	* Extend KILL-POP-UP-BUFFER to allow it to take context information
	so   it can restore the buffers that were popped over.

1994-03-08 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modlin.scm (1.18): Change to use variables MODE-NAME and
	MINOR-MODE-ALIST instead of special constructs.  The special %M and
	%m constructs still work, but are obsolete.

1994-03-08 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.165): * Implement permanent-local
	declaration.
	
	* Change BUFFER-PUT! to do BUFFER-REMOVE! if value is #F.
	
	* Generalize VARIABLE-LOCAL-VALUE, VARIABLE-LOCAL-VALUE?, and  
	SET-VARIABLE-LOCAL-VALUE! to accept #F as BUFFER, meaning to  
	manipulate the default value instead.
	
	* Change %SET-BUFFER-MAJOR-MODE!, ENABLE-BUFFER-MINOR-MODE!, and  
	DISABLE-BUFFER-MINOR-MODE! to update editor variables MODE-NAME and
	  MINOR-MODE-ALIST so the modeline is correct.

1994-03-08 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.19): Random rearrangements.

1994-03-08 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.35): Add various useful definitions.

1994-03-08 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.41): Can now define auto-save-default in krypt
	buffers, because that variable is declared permanent-local.

1994-03-08 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comhst.scm (1.3): Declare COMINT-INPUT-RING and
	COMINT-LAST-INPUT-MATCH to be permanent-local.

1994-03-08 15:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autosv.scm (1.29): Declare AUTO-SAVE-DEFAULT to be
	permanent-local.

1994-03-08 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.78): Define VARIABLE-PERMANENT-LOCAL! and
	VARIABLE-PERMANENT-LOCAL?.

1994-03-07 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.115): Change OTHER-WINDOW-INTERACTIVE to not
	use multiple screens unless the editor variable
	USE-MULTIPLE-SCREENS is true.  Since the default setting for this
	variable is false, the default behavior is like Emacs 19, which I
	find less confusing and more useful.

1994-03-07 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.27): Change browser to show just subexpression
	of a subproblem line, since this is what is most interesting about
	that line.  This takes less space and is less confusing than the
	previous behavior, which showed the whole expression and
	highlighted the subexpression.

1994-03-04 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.47): Load hash tables.

1994-03-04 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.11): Add FILE-EQ? procedure.

1994-03-04 16:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.40): Change OS/PRECIOUS-BACKUP-PATHNAME to use
	Emacs 19 names.

1994-03-04 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: modlin.scm (1.17), notify.scm (1.14): Change notifier to
	use only the GLOBAL-MODE-STRING editor variable.

1994-03-03 02:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tparse.scm (1.69): Fix minor bug in BACKWARD-ONE-PARAGRAPH.

1994-03-02 11:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/string.scm (14.11): Change string->list not to be brain
	dead.

1994-03-02 11:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/string.scm (14.10): Change string->list to be iterative.

1994-03-01 16:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.11): Fix bug in GRAPHICS-TYPE-AVAILABLE?
	-- this bug is present in the 7.3.0 release and must be fixed there
	also.

1994-02-25 15:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.25): Fix bug in previous change.

1994-02-22 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax.scm (14.24), runtime.pkg (14.223): Add means to
	detect whether a macro is being expanded at "top level".

1994-02-21 16:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.31): Eliminate another #f vs. '() bug.

1994-02-19 11:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/lambdx.scm (14.6): Remove extraneous parameter in call to
	make-lambda.

1994-02-19 10:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/lambdx.scm (14.5): Prevent internally defining a name
	from causing a duplicate name error.

1994-02-18 17:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/lambda.scm (14.12): Improve duplicate parameter test in
	lambda.scm

1994-02-18 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsig.c (1.30), uxsig.h (1.4): Move default
	definition of `record_signal_delivery' to "uxsig.h".

1994-02-16 02:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/list.scm (14.19): Improve defn. of fold-left and
	fold-right.

1994-02-15 15:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsig.c (1.29), ux.h (1.61): Add additional kludge to
	last change to guarantee that the SIGCHLD handler is correctly
	reinstalled after `grantpt' is run.  The previous change eliminated
	the serious bug but introduced another one.

1994-02-15 02:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wabbit.c (1.2): First working version?

1994-02-14 23:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wabbit.c (1.1): Initial revision

1994-02-14 23:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsig.c (1.28), uxsig.h (1.3): * Add debugging tool
	to keep trace of signal delivery in a history.	  The code to do
	this is disabled unless DEBUG_SIGNAL_DELIVERY is    defined.
	
	* Define alternate version of `signal' to work around bug in Sony  
	NEWS-OS 5.0.2.	Scheme doesn't use `signal' on that system, but
	libc   does.
	
	* Eliminate incorrect extra binding of signal handler for SIGIOT.

1994-02-08 19:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bignum.c (9.41): Fix typo in bignum_subtract_unsigned.

1994-02-08 16:11  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* wabbit/headhunt.text (1.1): Initial revision

1994-02-03 20:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.50): Fix parameter name mismatch in
	use of DEFUN.

1994-02-01 23:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/fgopt/simapp.scm (4.8): Added `Possible' to inapplicable
	operator warnings.

1994-02-01 23:10  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/fgopt/sideff.scm (1.8): Fixed #F/() confusion.

1994-02-01 23:03  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/back/: bitutl.scm (1.9), syerly.scm (1.10): Fixed #F/()
	confusion.

1994-02-01 23:01  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.19): Fixed to work with 2-tag fixnums.

1994-02-01 22:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.24): Added comment.

1994-02-01 22:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* compiler/base/: proced.scm (4.19), pmerly.scm (1.8): Fixed #F/()
	confusion.

1994-02-01 22:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.106): Re-synchronized RCS version with
	Scheme version.

1994-02-01 20:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: proced.scm (4.18), infnew.scm (4.11), make.scm
	(4.105): Separate target-block field from initial-callees field in
	procedure objects.
	
	The target-block field is useful in the debugging information, to
	be able to walk the procedure chain when debugging.

1994-02-01 20:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.sf (1.16),
	bobcat/compiler.sf (1.16), vax/compiler.sf (1.7), alpha/compiler.sf
	(1.4), i386/compiler.sf (1.6), C/compiler.sf (1.4),
	mips/compiler.sf-big (1.6), mips/compiler.sf-little (1.6): Another
	instance of "comp" replaced with "compiler"

1994-01-31 21:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.49): Fix bug introduced in
	breakpoint proceeding when the layout of memory was changed.
	
	The proceed buffer was allocated at the top of constant space which
	is now the bottom of the heap, where a perfectly valid object
	resides.  In fact, it was typically the object being breakpointed
	itself, being the object at the top of the stack (the first thing
	scanned).

1994-01-30 23:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.23): Make syntax default its syntax-table
	argument to the syntax table of the nearest repl.

1994-01-30 21:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.27): define-structure expands into only
	definitions, so it can be used at the beginning of a body.
	
	In particular, the print method is now always declared by passing
	it along to the type constructor, fixing a problem introduced by
	the reordering of the definitions in the last change.

1994-01-30 21:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/record.scm (1.22): Modify make-record-type to accept the
	print-method as an optional argument.

1994-01-30 17:07  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/win32.pkg (1.3): Reference to ../runtime/runtim ->
	../runtime/runtime

1994-01-29 22:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.86), option.c (1.36), bchpur.c (9.65),
	bchdmp.c (9.78): Fix several problems with gc files: - Under DOS,
	the files were not unique for different instances of bchscheme.  -
	Missing error messages under Windows (code had not been changed to
	use outf).  - TEMP and TMP environment variables were not examined.

1994-01-29 17:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dos.scm (1.13): WITH-REAL-WORKING-DIRECTORY-PATHNAME must
	really change the microcode's working directory pathname.

1994-01-29 17:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.18): Changed ucode-type fixnum ->
	positive-fixnum

1994-01-29 17:04  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.33): [no log message]

1994-01-29 16:57  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.32): Changed null-environment to be
	xor(#F,1) rather than TC_NULL::1.  This is how it is defined in the
	new microcode and happens to be correct for the current microcode.

1994-01-29 16:53  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: lambdx.scm (14.4), record.scm (1.21): Fixed #F/()
	confusion.

1994-01-29 16:40  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/equals.scm (14.7): Minor efficiency tweak for eqv? on
	fixnums

1994-01-29 16:37  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.10): Fixed for #F != '()

1994-01-29 16:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.20): Added a comment.

1994-01-29 16:34  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/lambda.scm (14.11): Removed various #F/() confusion.

1994-01-29 16:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosio.h (1.3): Replace UXIO with DOSIO.

1994-01-29 16:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.14): Fixed  null? -> false?

1994-01-28 20:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: usiexp.scm (4.32), gconst.scm (4.19): FIRST cannot be
	integrated as a constant because it is not a primitive.  It must be
	expanded.

1994-01-28 19:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.31), infutl.scm (1.55):
	compiled-entry/dbg-object now returns meaningful info for the
	internal entry point.

1994-01-27 23:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/gconst.scm (4.18): Add FIRST to list of constants to be
	expanded.

1994-01-27 23:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.20): Add handlers for page-up, page-down,
	and insert keys.

1994-01-25 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.31): When constant-folding multiple
	definition values vector, must unmap reference traps so that
	definition works right.

1994-01-13 22:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.26): Move type-definitions to the end of
	the definition block.  In this way there is no need for the symbol
	to be returned, since the type definition "returns" the symbol, and
	in addition, all the forms are definitions, so a DEFINE-STRUCTURE
	becomes legal amongst internal definitions.

1994-01-13 19:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.54): Eliminate random error that occurs when
	file is missing.

1994-01-11 19:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.65), psbtobin.c (9.56): Make bintopsb
	align compiled-code blocks as necessary on the source machine.
	
	For the C back end, this should be innocuous, since there are no
	alignment constraints on code.
	
	For the native back ends, the native code is only meaningful on the
	same machine, so the alignment constraints should be the same.

1994-01-11 19:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/graphics.scm (1.4): changed ACCESS forms to use
	system-global-environment

1994-01-11 19:18  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.3): [no log message]

1994-01-10 16:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.83), cmpint.c (1.80.1.2): Add cast to
	eliminate warning.

1994-01-10 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.53): Fix bugs that occur after tags-search is
	finished.

1994-01-08 16:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.9): Rename runtim.* to runtime.* Rename comp.*
	to compiler.*

1994-01-08 16:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.sf (1.15), vax/compiler.pkg
	(1.21), vax/compiler.sf (1.6): Rename runtim.* to runtime.* Rename
	comp.* to compiler.*

1994-01-08 16:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: mips/compiler.pkg (1.19),
	mips/compiler.sf-little (1.5), mips/compiler.sf-big (1.5),
	spectrum/compiler.pkg (1.47): Rename runtim.* to runtime.* Rename
	comp.* to compiler.*

1994-01-08 16:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: compiler.sf (1.5), compiler.pkg (1.21):
	Rename runtim.* to runtime.* Rename comp.* to compiler.*

1994-01-08 16:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: alpha/compiler.pkg (1.12), alpha/compiler.sf
	(1.3), C/compiler.sf (1.3), bobcat/compiler.pkg (1.49),
	bobcat/compiler.sf (1.15): Rename runtim.* to runtime.* Rename
	comp.* to compiler.*

1994-01-08 16:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/compiler.pkg (1.9): Forgot to update the
	copyright.

1994-01-08 16:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.104): Rename comp.* to compiler.*

1994-01-08 16:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/compiler.pkg (1.8): Rename runtim.* to
	runtime.*

1994-01-08 16:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.51), runtime/runtime.sf (14.9), sf/sf.pkg
	(4.10), cref/cref.pkg (1.6), edwin/edwin.pkg (1.142): Rename
	runtim.* to runtime.*

1994-01-08 12:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.80.1.1): Update beta-release version with
	bug fixes from version 1.82.

1994-01-08 12:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.78.1.1): Update beta-release version with
	bug fixes from version 9.80.

1994-01-08 12:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.80): Fix cache-flushing bugs manifested on
	the MIPS R4000:
	
	- PUSH_D_CACHE_REGION was being called at the wrong time.

1994-01-08 12:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.82): Fix cache-flushing bugs manifested on
	the MIPS R4000:
	
	- The linker cannot use PUSH_D_CACHE_REGION on the block being
	linked if it is returning to it, it must use FLUSH_I_CACHE_REGION.

1994-01-08 11:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.19): Fix cache-flushing bugs
	manifested on the MIPS R4000:
	
	- trampoline entries must be flushed after being written.  - The
	R4000 has write-back caches, so FLUSH_I_CACHE_REGION and friends  
	must also flush the D cache.  - PUSH_C_CACHE_REGION !=
	FLUSH_I_CACHE_REGION.

1994-01-06 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.64): Patch to allow ordinary compiled
	files to work with allow_cc.  The utilities vector is not relevant
	for ordinary code, only for bands or dumped linked objects, which,
	for now, bintopsb cannot handle.

1993-12-29 13:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.49): Check arguments to MAKE-REPL to
	guarantee that they are valid.	Otherwise, it's all too easy to end
	up with a REPL that can't be used at all.

1993-12-29 13:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntab.scm (14.4), load.scm (14.48), rep.scm (14.48):
	Change GUARANTEE-SYNTAX-TABLE to take second argument.

1993-12-28 13:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.27): Use FOLD-LEFT instead of REDUCE to do
	n-ary versions of GCD and LCM -- REDUCE returns a negative number
	if there is a single negative argument, which is incorrect.

1993-12-23 06:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/: bittop.scm (1.21), bitutl.scm (1.8): Reimplement
	interval arithmetic and assembler relaxation code.  New arithmetic
	uses geometric model to get more accurate results.  Relaxation has
	been changed to eliminate assumption that if the low bound of an
	interval doesn't fit, then no point within the interval will fit. 
	This assumption was proven incorrect by an example on the MIPS.

1993-12-23 03:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.47), error.scm (14.45), debug.scm (14.38),
	runtime.pkg (14.222): When invoking restart in another thread, must
	call RESTART-THREAD.  Also, look for a special CONTINUE restart in
	the current thread and invoke that.

1993-12-23 01:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.21): Add option to allow RESTART-THREAD to
	prompt the user regarding whether events in the thread's queue
	should be discarded.

1993-12-22 09:59  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.31): [no log message]

1993-12-22 09:50  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.30): [no log message]

1993-12-22 09:41  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.28): [no log message]

1993-12-22 09:27  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.27): [no log message]

1993-12-22 09:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.26): [no log message]

1993-12-22 08:59  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.25): [no log message]

1993-12-22 03:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.24): [no log message]

1993-12-22 02:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.23): [no log message]

1993-12-22 02:28  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.22): Put ucode-type calls in procedures so that
	the procedures may be redefined for re-tagging

1993-12-21 20:26  Jim Miller <jmiller@zurich.ai.mit.edu>

	* runtime/debug.scm (14.37): Generalize Z command to allow NOT
	discarding thread events when restarting thread.

1993-12-21 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/urtrap.scm (14.4): Reference traps must be fasdumpable.

1993-12-21 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.38): Fix typo.

1993-12-21 05:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.141): Fix bug in dired-clean-directory --
	roles of positive and negative arguments were reversed.

1993-12-18 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.20): Branch-tensioner assumptions are
	also violated in case where padding not in use, although I don't
	understand why since this code used to work.  This patch at least
	allows the compiler to work without errors in this case.

1993-12-18 03:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/lapgen.scm (1.13): Work around new bug in
	variable-width instruction assembly: LW is being forced to use its
	long-offset form when the offset is small (in this case the offset
	is -4).

1993-12-18 02:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.19): Fix bug in previous change.

1993-12-16 21:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.44): Fix think-o.

1993-12-16 21:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.43): Fix think-o.

1993-12-16 21:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.42): Restore kludge to allow
	non-interactive restarts to be invoked interactively.

1993-12-16 20:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.23): Fix some typos.

1993-12-16 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.46), edwin/schmod.scm (1.36),
	edwin/comred.scm (1.110), runtime/error.scm (14.41): Implement
	WITH-RESTART to replace BIND-RESTART.  WITH-RESTART takes an
	additional argument that specifies the interactor -- this is no
	longer done by means of a restart property.

1993-12-16 19:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.40), runtime.pkg (14.221), advice.scm
	(14.14), uerror.scm (14.37): Implement WITH-RESTART to replace
	BIND-RESTART.  WITH-RESTART takes an additional argument that
	specifies the interactor -- this is no longer done by means of a
	restart property.

1993-12-16 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.39): Bind BREAK-ON-SIGNALS types to '()
	when invoking the breakpoint.  Otherwise passing a breakpoint type
	to BREAK-ON-SIGNALS will cause an infinite loop.

1993-12-15 14:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/parse.scm (14.22): Added more special readers:
	
	  #[name number fnord fnord ...]
	
	now reads as (unhash number), making it possible to read in some
	output that contains closures etc into the same Scheme process.
	
	  #n= and #n#
	
	A tentative implementation of these Common Lisp readers for cyclic
	structures (lists and vectors).

1993-12-14 19:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.32): Handle built-in and utility hardware
	traps.

1993-12-14 17:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.36): Fix a couple of typos.

1993-12-11 15:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.77): fasdump_compiled_entry was not
	aligning compiled-code blocks to floating-point boundaries as it
	copied them to the output file.

1993-12-11 15:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.85): Fix several bugs related to varying
	the size of constant space: - The gc file should be large enough to
	accomodate all the heap and   constant space, not only the space
	indicated by the -heap parameter.
	
	- The size of the gc file should be a multiple of the gc buffer
	size.	 The garbage collector always writes a multiple of this
	quantity,    even though at the end, only the area in use is read.

1993-12-10 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.35): In M-x show-parameter-list, handle case
	where no debugging information is available for procedure.

1993-12-08 22:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: i386/compiler.pkg (1.20), bobcat/compiler.pkg
	(1.48), mips/compiler.pkg (1.18), alpha/compiler.pkg (1.11),
	vax/compiler.pkg (1.20), C/compiler.pkg (1.7): Update to match
	latest changes to the linearizer.

1993-12-08 20:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.18): Fix typo in last change.

1993-12-08 18:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.17): ?Fix violation in
	branch-tensioner assumptions introduced by padding.  It was
	previously the case that when variable-width directives were not
	updated, the minimum width would work for all.	This is no longer
	true.

1993-12-08 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.17): Change procedures that convert hash
	tables to lists so that they don't include invalid entries in the
	result.

1993-12-08 14:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/linear.scm (4.16): Several changes: - Closures are
	allocated differently: the compiler prepares a pattern,   the
	linker finalizes it, the garbage collector relocates it, and   the
	pattern is copied at runtime to make a new closure.  - Tighten up
	the closure code: eliminate the privilege-bit-clearing	
	instruction, and share the closure gc stubs between all the
	closures   in a block.	- Add a code segment facility to the
	linearizer.  - Add a padding facility to the assembler.  - Compiled
	code blocks are now aligned to floating-point boundaries   so that
	they can contain embedded floating-point values and closure  
	patterns can be copied using floating-point loads and stores.  -
	Floating-point constants are now embedded in the code area,  
	requiring fewer operations.

1993-12-08 12:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/spectrum/compiler.pkg (1.46),
	machines/spectrum/instr2.scm (1.6), machines/spectrum/lapgen.scm
	(4.46), machines/spectrum/lapopt.scm (1.14),
	machines/spectrum/rules3.scm (4.41), machines/spectrum/rulflo.scm
	(4.39), base/make.scm (4.103): Several changes: - Closures are
	allocated differently: the compiler prepares a pattern,   the
	linker finalizes it, the garbage collector relocates it, and   the
	pattern is copied at runtime to make a new closure.  - Tighten up
	the closure code: eliminate the privilege-bit-clearing	
	instruction, and share the closure gc stubs between all the
	closures   in a block.	- Add a code segment facility to the
	linearizer.  - Add a padding facility to the assembler.  - Compiled
	code blocks are now aligned to floating-point boundaries   so that
	they can contain embedded floating-point values and closure  
	patterns can be copied using floating-point loads and stores.  -
	Floating-point constants are now embedded in the code area,  
	requiring fewer operations.

1993-12-08 12:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: back/bittop.scm (1.16), back/bitutl.scm (1.7),
	back/lapgn1.scm (4.16), back/syerly.scm (1.9), back/syntax.scm
	(1.26), base/asstop.scm (1.10): Several changes: - Closures are
	allocated differently: the compiler prepares a pattern,   the
	linker finalizes it, the garbage collector relocates it, and   the
	pattern is copied at runtime to make a new closure.  - Tighten up
	the closure code: eliminate the privilege-bit-clearing	
	instruction, and share the closure gc stubs between all the
	closures   in a block.	- Add a code segment facility to the
	linearizer.  - Add a padding facility to the assembler.  - Compiled
	code blocks are now aligned to floating-point boundaries   so that
	they can contain embedded floating-point values and closure  
	patterns can be copied using floating-point loads and stores.  -
	Floating-point constants are now embedded in the code area,  
	requiring fewer operations.

1993-12-08 12:36  Jim Miller <jmiller@zurich.ai.mit.edu>

	* runtime/option.scm (14.27): Added SWAT option

1993-12-08 04:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/symtab.scm (1.46): Fix "disappearing labels" bug by
	making the symbol table be strongly held.

1993-12-07 15:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.147), bchdmp.c (9.76), bchgcc.h (9.57),
	bchgcl.c (9.49), bchpur.c (9.64), cmpgc.h (1.27), cmpint.c (1.81),
	dostrap.c (1.6), fasdump.c (9.60), fasload.c (9.79), gccode.h
	(9.53), gcloop.c (9.45), nttrap.c (1.10), purify.c (9.54), purutl.c
	(9.47), uxtrap.c (1.25): Some changes to closures: - Tightening of
	the entry sequence.  - Closure generation by copying a pattern made
	by the compiler.  - Add ability to set breakpoints in closures'
	internal entry points.	- Add CLOSURE_PATTERN_LINKAGE_KIND used by
	the new patterns.
	
	Align compiled code blocks on floating-point boundaries so that the
	compiler can pad to guarantee that embedded floating-point numbers
	(and closure patterns, copied using floating-point instructions on
	the hppa) are aligned correctly.

1993-12-07 15:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.48): Some changes to closures: -
	Tightening of the entry sequence.  - Closure generation by copying
	a pattern made by the compiler.  - Add ability to set breakpoints
	in closures' internal entry points.

1993-12-07 15:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.34): [no log message]

1993-12-06 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/flonum.c (9.42): Eliminate duplicate definition of
	FLONUM_SIZE.

1993-12-06 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/flonum.c (9.41): Eliminate duplicate definition of
	FLONUM_SIZE.

1993-12-06 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.45): Set up a CONTINUE restart for errors
	resignalled from other threads.

1993-12-05 01:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/object.h (9.45): Fix typo in last change.

1993-12-05 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.38), runtime.pkg (14.220): Implement
	support for drawing multiple points and lines.

1993-12-05 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.32): Add primitives to draw multiple
	points and lines.  These have better performance characteristics
	for large plots.

1993-12-05 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: object.h (9.44), prims.h (9.44), dfloat.c (1.5):
	Generalize support for flonum vectors.

1993-11-30 22:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/: graphics.scm (1.3), module.scm (1.3), win_ffi.scm (1.3),
	wt_user.scm (1.3): Altered event:after-restarts to allow a band
	containing the win32 system to be loaded on a DOS-only microcode.

1993-11-29 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.9): Remove definition of INT:->FLONUM
	since it is now exported from the arithmetic package.

1993-11-29 18:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.28): Fix think-o in previous change.

1993-11-29 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.21): Add expansion for INT:->FLONUM.

1993-11-29 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.219): Export INT:->FLONUM.

1993-11-29 16:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.27): Change temporary filename so that it
	has no file type.

1993-11-29 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.54): Fix problem that caused trouble with
	debugging information when Scheme was installed on a different
	device from that on which it was built.

1993-11-29 14:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.12): Make compile-procedure and
	compile-scode work.

1993-11-29 14:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: toplev.scm (4.51), toplev.scm (4.52): Fix minor
	bug.

1993-11-29 14:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.50): Fix minor bug.

1993-11-29 13:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: asstop.scm (1.9), toplev.scm (4.49): Rename
	compiled-scode->procedure to compiler-output->procedure Add
	compiler-output->compiled-expression and
	compile-scode/internal/hook to make compile-procedure and
	compile-scode work in the C back end.

1993-11-24 12:21  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/ntgui.rc (1.7): Made release and version
	automatic from version.h

1993-11-24 11:37  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/ntgui.rc (1.6): Fixed version info

1993-11-24 04:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.60): SUNOS calls it TIOCSIGNAL, not TIOCSIG!

1993-11-23 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.59): TIOCSIG not available on sun3.

1993-11-23 14:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.11): Add -O to alpha switches.

1993-11-23 01:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.58): Disable ptys in Ultrix.

1993-11-22 22:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.33): POLL-PROCESS-FOR-OUTPUT must check the
	input channel to see if it is there at all -- SUBPROCESS-DELETE
	will change the channel to #F.

1993-11-22 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.18): Conditionalize use of TIOCSCTTY to
	OSF/1 specifically -- HP-UX has this but calling it causes trouble.

1993-11-22 21:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.17): Make sure that controlling PTY is
	informed of its process group when a subprocess is started.

1993-11-22 20:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.32): BSD PTYs signal I/O-error when trying
	to read from a master side whose slave has been closed; SYSV PTYs
	return EOF in same case.  Add code to handle BSD case (this code
	has a race in it but seems to work OK).

1993-11-22 18:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.57): Eliminate useless Ultrix
	conditionalization.

1993-11-22 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.56): Fix conditionalization of HAVE_FTRUNCATE
	-- it was broken for those operating systems that were both POSIX
	and BSD.  Also, define TIOCSIGSEND on several operating systems
	that support it under a different, undocumented name: TIOCSIG.

1993-11-22 17:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.16): OSF/1 requires the TIOCSCTTY ioctl to
	be executed in order to associate a controlling terminal with a
	session leader.

1993-11-22 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.c (1.13): Turns out that setpgrp(0,0) is different
	from setpgrp(pid,pid) -- and only the former works correctly on
	some BSD systems.

1993-11-22 14:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.9): The 300s prefix symbols with _, have
	the dynamic loader take care of this automagically.

1993-11-22 14:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.24): Fix declaration of etext for
	hp9000s300.

1993-11-21 22:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/x11base.c (1.52): Fix bug in x_window_to_xw: it was not
	checking that the entry in the x_window_table was valid before
	extracting the window handle.

1993-11-21 21:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/TODO (1.6): [no log message]

1993-11-21 19:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.26): Define macros not present when there is
	no compiled code support.

1993-11-21 19:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdrn.h (1.6): HP-UX, OSF, and AIX all have SysV
	shared memory.

1993-11-21 19:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.84): Fix bug introduced when moving
	constant space and not using SysV shared memory:
	
	The gc buffers need to be below Highest_Allocated_Address, since
	reset_allocator_parameters uses this boundary to set Heap_Top.

1993-11-21 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.47): In LOAD-PACKED-BINARIES, delay
	purification of the packed files until after the loading is
	complete.

1993-11-21 16:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/TODO (1.5): Update.

1993-11-21 01:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.53): Fix think-o in previous change.

1993-11-21 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/apropos.scm (1.2): Repaginate.  Eliminate compiler
	warnings.

1993-11-20 20:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.52): Fix last change.  It was just wrong.

1993-11-20 19:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.51): Add code to handle the
	load/purification-root of blocks produced by the C back end.

1993-11-20 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/equals.scm (14.6): Rearrange order of predicate testing
	in EQUAL? to favor more common types.

1993-11-20 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.20): Fix think-o in last change.

1993-11-20 03:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.218): Reinstall apropos now that release
	is finished.

1993-11-20 02:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.5): Update to reflect new directories.

1993-11-20 02:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/table.scm (4.3): Fix typo in last change.

1993-11-20 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.217): Remove apropos from release.

1993-11-19 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (14.20): Add object that can be yielded as the
	result of an evaluation in order to suppress the ";value" message
	from the evaluation.  This allows the Emacs interface to transmit
	commands to Scheme without having those commands appear in the
	buffer.

1993-11-18 23:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/termcap.c (1.6): Define NULL, not previously defined by
	any of the include files.

1993-11-18 23:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/tparam.c (1.7): Define NO_ARG_ARRAY by default, since
	arguments are often passed in registers and modern optimizing
	compilers will only put the addressed variable on the stack.

1993-11-18 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/regex.c (1.14): The AIX C compiler does not sign-extend
	characters correctly.

1993-11-18 14:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/: bch.ico (1.2), edwin.ico (1.2), graphics.ico
	(1.2), liar3.ico (1.2), shield3.ico (1.2), shield4.ico (1.2):
	Fiddling with appearance

1993-11-18 10:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.234), undo.scm (1.57): Split calls to
	add-gc-daemon! into calls to add-gc-daemon!/no-restore and
	add-event-receiver! event:after-restore ...

1993-11-18 10:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.216), gcdemn.scm (14.7): Define
	add-gc-daemon!/no-restore, required by the C back end.

1993-11-17 23:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.215): [no log message]

1993-11-17 23:30  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/apropos.scm (1.1): Initial revision

1993-11-17 23:27  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.214): Added apropos

1993-11-17 20:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.50): Fix think-o in last change.

1993-11-17 20:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.82), compiler/base/make.scm (4.102),
	cref/make.scm (1.10), sf/make.scm (4.28): Delay resolution of
	debugging-info filename until the file is needed.

1993-11-17 19:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.49), make.scm (14.50), site.scm.dos
	(1.13), site.scm.unix (1.14): Implement new mechanism to allow the
	system to specify its debugging-info files as relative pathnames
	that are resolved at lookup time rather than at the time the .com
	files are loaded.

1993-11-17 19:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.33): gcc complains about a type mismatch when
	declaring select on the RS6000.

1993-11-17 18:05  Stephen Adams <adams@zurich.ai.mit.edu>

	* sf/: lsets.scm (4.2), table.scm (4.2): Added $Id: line

1993-11-17 17:58  Stephen Adams <adams@zurich.ai.mit.edu>

	* 6001/: pic-ops.scm (1.4), pic-reco.scm (1.6): Added copyright
	notice

1993-11-17 17:49  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/: dibutils/dibutils.def (1.2), ffimacro.scm (1.2): Added
	copyright notice

1993-11-17 17:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/dibutils/makefile.msc (1.2): Added copyright message

1993-11-17 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/notify.scm (1.13): Eliminate race condition that often
	caused SIGSEGV when notifier was started up.

1993-11-17 00:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules1.scm (1.7): Fix unbound variable
	problem introduced in the last edit.

1993-11-17 00:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules1.scm (1.6): Patch BYTE-OFFSET-ADDRESS
	rules to avoid warnings and errors from an implicit cast.

1993-11-17 00:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.10): Fix switches on AIX and
	Alpha.

1993-11-16 17:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.9): Files must be linked with cc
	on AIX.

1993-11-16 11:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.19): Fix bug when displaying #\'

1993-11-16 11:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.18): Finish renaming C-quotify.

1993-11-15 23:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.146): Changes to cmpint.c, psbtobin.c,
	and bintopsb.c to allow moving C-back-end bands to machines with a
	different word size.
	
	Bump version number.

1993-11-15 23:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: psbtobin.c (9.55), bintopsb.c (9.63): Teach psbtobin
	and bintopsb how to relocate the compiled code utilities vector
	correctly.

1993-11-15 22:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.80): Change compiler_initialize and
	compiler_reset to produce (and restore) an ordinary compiled code
	block that includes a manifest vector header.  It costs an extra
	word, but makes it possible for psbtobin and bintopsb to relocate
	the compiled code utilities correctly for the C back end.

1993-11-15 21:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/c.h (1.6): Add cast to remove spurious
	warnings.

1993-11-15 21:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/c.h (1.5): Fix MANIFEST_CLOSURE_COUNT and
	FIRST_MANIFEST_CLOSURE_ENTRY.  The default versions only work when
	sizeof (unsigned long) = 2 * sizeof (format_word)

1993-11-15 21:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.17): Fix character quoting -- we
	can't really use ANSI escapes (e.g. \a).

1993-11-15 20:05  Stephen Adams <adams@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.141.1.1): Update to match Unix version 1.141

1993-11-15 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.81): Update version number.

1993-11-15 00:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.16): Fix conflict when timestamps
	have been disabled.

1993-11-13 14:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/make.scm (4.101), base/asstop.scm (1.8),
	machines/C/ctop.scm (1.8): Load option compress when the compiler
	is loaded.

1993-11-13 14:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.15): Add mechanism to disable
	timestamps to allow comparison of output.

1993-11-13 14:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.7): Fix bug when switch list is
	empty.	Disable checking of return status of system.  Apparently it
	does not quite work in SunOS.

1993-11-13 01:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.6): Use
	with-working-directory-pathname to make some C compilers happy.

1993-11-13 01:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/lapgen.scm (1.10): Fix variable names: the
	number was previously duplicated.

1993-11-13 01:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules3.scm (1.8): Fix variable name conflict
	when using dynamic links.

1993-11-12 23:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.5): Check cc and ld return codes,
	and delete .o file after producing the shared object.

1993-11-12 22:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.13): The primitive
	SET-WORKING-DIRECTORY-PATHNAME! does not like pathname objects.

1993-11-12 22:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/ctop.scm (1.4): Make C back end invoke the C
	compiler and linker on the output by default.

1993-11-12 22:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/liarc.h (1.12): Fix typo.

1993-11-12 22:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/compiler.pkg (1.6): Export
	C-back-end-specific switches.

1993-11-12 22:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/liarc.h (1.11): Change default: liarc.h defines
	COMPILE_FOR_DYNAMIC_LOADING unless COMPILE_FOR_STATIC_LINKING is
	defined alredy, which is now defined by the makefile.

1993-11-12 21:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.12): Split system out of call/cc.

1993-11-12 21:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/make.scm (1.2), edwin/make.scm (3.80): Use
	declare-shared-library to make -compiler and -edwin work in the C
	back end.

1993-11-12 21:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: option.scm (14.26), runtime.pkg (14.213): Add
	declare-shared-library for the C back end.

1993-11-12 21:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.11): Changes to call/cc: - Add
	customization switches - Disable timer interrupts around the call
	to system,   to prevent interrupt lossage.  - Change the microcode
	directory to make the command line win.

1993-11-12 20:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/comfiles.scm (1.5): Fix typo in previous change.

1993-11-12 15:49  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/compiler.pkg (1.10): Forgot to add
	rtl:bump-closure to the export list

1993-11-12 15:22  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/make.scm (1.3): Alpha now handles
	"compressed" top-level block as on the Spectrum and i386

1993-11-12 15:21  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/rules3.scm (1.6): Added code to handle
	compressed top-level files (generate/remote-links)

1993-11-12 13:25  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/instr1.scm (1.3): Bad syntax for UWORD

1993-11-12 13:10  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/coerce.scm (1.2): Added
	coerce-32-bit-unsigned to support UWORD (instr1)

1993-11-12 09:58  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/rulflo.scm (1.2): Added support for
	floating-point vectors

1993-11-12 09:53  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/instr1.scm (1.2): Added UWORD in
	preparation for future use in generate/remote-links (rules3)

1993-11-12 09:43  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/: rules1.scm (1.2), rules3.scm (1.5):
	Changed format of OFFSET-ADDRESS, BYTE-OFFSET-ADDRESS, and
	FLOAT-OFFSET-ADDRESS to allow indexing by either a REGISTER or a
	MACHINE-CONSTANT, whereas it previously assumed MACHINE-CONSTANT
	only.

1993-11-12 09:43  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/make.scm (1.2): Prepare for next version,
	where we'll use compiler:compress-top-level

1993-11-12 09:42  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/machines/alpha/machin.scm (1.7): Changed format of
	OFFSET-ADDRESS, BYTE-OFFSET-ADDRESS, and FLOAT-OFFSET-ADDRESS to
	allow indexing by either a REGISTER or a MACHINE-CONSTANT, whereas
	it previously assumed MACHINE-CONSTANT only.
	
	Also, updated list of floating point primitives not in-lined.

1993-11-11 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.54): Fix typo.

1993-11-11 15:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.46): GJR's changes for dynamic loader.  Also
	repaginate and rearrange order.

1993-11-11 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchutl.c (1.4), posixtyp.h (1.9), cmpint.c (1.79),
	psbmap.h (9.41): Changes for NeXT.

1993-11-11 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/: sun3-nfp.s (1.3), sun3.s (1.3): Fix think-o
	in previous update.

1993-11-11 01:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.47): Change flush_i_cache_initialize
	to always check for environment variables.  This allows overriding
	the name reported by uname under HP-UX!
	
	Change the environment variable from HPPAmodel to
	MITSCHEME_HPPA_MODEL.

1993-11-11 00:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppacach.mc (1.2): Add 755 cache parameters.

1993-11-10 17:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.26): Fix bug in the
	instructions to generate a cross-compiler band.

1993-11-10 16:43  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/wt_user.scm (1.2): Fixed integration of make-primitive ro
	ucode-primitive

1993-11-10 16:41  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/: dib.scm (1.2), make.scm (1.2), protect.scm (1.2),
	win_ffi.scm (1.2): Fixed $Header

1993-11-10 16:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/graphics.scm (1.2): Fixed image drawing operations to be at
	transformed coords, not native coords.	Sizes and image coords are
	still native because we dont want to have to scale the image
	(bitmap)

1993-11-10 16:36  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/module.scm (1.2): Fixed $Header, fixed module loading to be
	even more lazy

1993-11-10 16:34  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/wf_user.scm (1.2): Added more windows functions

1993-11-10 16:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/: win32.pkg (1.2), win32.sf (1.2): Fixed $Header

1993-11-10 16:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/win32.cbf (1.2): Compile now with error checking

1993-11-10 16:31  Jim Miller <jmiller@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.62): Rearrange load evaluation
	order to fix bug in alpha.

1993-11-10 16:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* 6001/picture.scm (1.21): Fixed bug in positioning of picture
	within a window that is not of an exact fitting size.

1993-11-10 15:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.8): Add dynamic loading for the RS6000

1993-11-10 13:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/machin.scm (1.14): Fix bug in
	interpreter-environment-register?

1993-11-09 18:47  Stephen Adams <adams@zurich.ai.mit.edu>

	* 6001/picture.scm (1.20): Mergesd Win32 and X11 versions.

1993-11-09 16:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.8): Make file names 8.3

1993-11-09 16:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* 6001/6001.sf (1.8): Made file names 8.3

1993-11-09 16:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* 6001/pic-imag.scm (1.5): [no log message]

1993-11-09 16:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* 6001/: pic-reco.scm (1.5), picture.scm (1.19): Fixed to
	correspond to new Image abstraction

1993-11-09 14:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtop.c (1.12): Fix problem in AIX: ENOTEMPTY = EEXIST.

1993-11-09 13:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.83): Fix declaration of select for sparcs.

1993-11-09 11:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.62): Fix initialization problem when
	loading with the C code table.

1993-11-09 10:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: bch-cl3.lst (1.6), bch-p-nt.lst (1.5),
	scm-cl3.lst (1.6), scm-p-nt.lst (1.5): Add avltree.

1993-11-09 03:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: psbtobin.c (9.53), fasload.c (9.78), load.c (9.36),
	bintopsb.c (9.61): Make the C-back end work without
	HEAP_IN_LOW_MEMORY.

1993-11-09 03:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.56), cmpgc.h (1.25), gcloop.c (9.44),
	purify.c (9.53), fasdump.c (9.59), bchdmp.c (9.75): Make the C-back
	end work without HEAP_IN_LOW_MEMORY.

1993-11-09 01:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/liarc.h (1.10): define CLOSURE_ENTRY_DELTA, used to
	make the same .c source work with HEAP_IN_LOW_MEMORY and without
	it.

1993-11-08 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dosprm.scm (1.21), infutl.scm (1.48), sfile.scm
	(14.10), unxprm.scm (1.26), version.scm (14.166): These changes
	require microcode version 11.145 or later.
	
	Reimplement handling of temporary files to update list in fixed
	objects vector; this list tells the microcode that the files should
	be deleted when Scheme is killed.
	
	Additionally, change the handling of ".bci" file expansion to use
	the new temporary file mechanism.  The expander now accepts a third
	value for *SAVE-UNCOMPRESSED-FILES?* which says to expand the file
	into a temporary file that is deleted (by the GC) after it has not
	been used in a while, or when Scheme is killed.  This new option is
	now the default, and the timeout for these temporary files defaults
	to five minutes.

1993-11-08 23:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/: cout.scm (1.13), cout.scm (1.14): Fix
	ordering and pagination.

1993-11-08 23:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/: cout.scm (1.11), cout.scm (1.12): Fix data
	labels when timestamped.

1993-11-08 23:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/butils.scm (4.8): Conditionalize output file extension for
	compiler (C back end produces .c files).

1993-11-08 23:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/asstop.scm (1.7), base/toplev.scm (4.48),
	machines/C/ctop.scm (1.3): Conditionalize output file extension.

1993-11-08 23:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.10): Make non-top-level blocks
	have a time-stamp.

1993-11-08 22:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/machin.scm (1.7): Fix closure-entry-distance
	when not HEAP_IN_LOW_MEMORY.

1993-11-08 17:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/machin.scm (1.6): Fix bug in
	guaranteed-long/upper-limit and lower-limit.

1993-11-08 16:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.55): Add SYTEM_VARIANT for AIX.

1993-11-08 16:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/liarc.h (1.9): Add dstack.h to included files.  Needed
	by new interpreter abort mechanism.

1993-11-08 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: term.c (1.10), version.h (11.145): Implement
	mechanism to delete temporary files when Scheme exits.	Reimplement
	Edwin auto-save mechanism to use new error-catching.

1993-11-08 15:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: interp.c (9.81), interp.h (9.39): Implement new
	mechanism to catch `abort_to_interpreter' throws from primitives.

1993-11-08 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fixobj.h (9.36), utabmd.scm (9.72), boot.c (9.87):
	Add new slot to fixed objects vector, which contains a list of
	files to be deleted when the microcode exits.

1993-11-08 01:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.77): Use extra fasl field for systems
	without HEAP_IN_LOW_MEMORY to correctly relocate raw pointers.

1993-11-08 01:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dump.c (9.39), fasl.h (9.35), load.c (9.35): Add
	extra fasl field for systems without HEAP_IN_LOW_MEMORY.

1993-11-08 01:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxtrap.h (1.23), wsize.c (9.33): Add RS6000 support.

1993-11-08 01:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: config.h (9.83), oscond.h (1.15), ux.h (1.54),
	uxterm.c (1.23): Add RS6000 support.

1993-11-06 23:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.52): Allow NMVs in bands: interpreted
	stack frames contain them.

1993-11-06 21:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.60): Eliminate some warnings from the HP
	C compiler on hp9k300s.

1993-11-06 20:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.59): Shadow some macros when not using
	the C back end.  This avoids potential missing externs.

1993-11-06 20:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: psbmap.h (9.40), bintopsb.c (9.58), psbtobin.c
	(9.51): Teach bintopsb and bintopsb to deal with - constant and
	pure space - C back-end output - bands

1993-11-06 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.9): Add new procedure
	DELETE-FILE-NO-ERRORS.

1993-11-06 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.15): Implement CURRENT-PID primitive for
	unix.

1993-11-05 15:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.76): Fix innocuous logical off-by-one
	error.

1993-11-04 19:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.11): Two significant changes:
	
	- Add consistency checking and table-restructuring at disk-restore
	to   allow use of bands built by a differently-organized microcode.
	   The consistency check only checks that each compiled code block 
	  has the same number of entries (and name).
	
	- Use the AVL tree code used in the primitive tables to speed
	lookup.

1993-11-04 19:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: avltree.c (1.1), avltree.h (1.1): Initial revision

1993-11-04 19:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: primutl.c (9.69), ntutl/makefile (1.14): Separate AVL
	tree code from primutl.c and make it into a separate utilities file
	(avltree.[ch]) for use by other parts, in particular the C back end
	code block management.

1993-11-04 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.10): Rewrite manipulation of terminal modes
	because on BSD the input and output modes interact with one
	another.

1993-11-04 18:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.78): Initialize Regs[REGBLOCK_PRIMITIVE] so
	that the C back end can abort correctly out of disk-restore.

1993-11-04 18:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.75): Call install_c_code_table only when
	restoring a band.

1993-11-04 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.9): Fix bug in previous change.

1993-11-04 14:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dump.c (9.38), load.c (9.34), cmpint.c (1.77): Fix
	braino.

1993-11-03 23:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasl.h (9.34), load.c (9.33), dump.c (9.37),
	fasdump.c (9.58), fasload.c (9.74), bchdmp.c (9.74), cmpint.c
	(1.76): Add hooks for the C back end to dump a description of the C
	code blocks that a band depends on, and to verify compatibility
	after a disk-restore.

1993-11-03 23:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.7): Fix a cast.

1993-11-03 22:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bkpt.h (9.31): Update copyright date.

1993-11-03 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/: sun3.s (1.2), sun3-gcc.s (1.2), sun3-nfp.s
	(1.2): Update to match current "mc68k.m4".

1993-11-03 14:22  Jim Miller <jmiller@zurich.ai.mit.edu>

	* microcode/storage.c (9.55): Fixes to allow ENABLE_DEBUGGING_FLAGS
	to work

1993-11-03 14:19  Jim Miller <jmiller@zurich.ai.mit.edu>

	* microcode/interp.c (9.80): Turned off Eval_Debug code
	permanently, since Print_Expressions isn't really available here.

1993-11-03 14:04  Jim Miller <jmiller@zurich.ai.mit.edu>

	* microcode/debug.c (9.46): Reversed the conditionalization so that
	we can support ENABLE_DEUBGGING_FLAGS again.

1993-11-03 13:49  Jim Miller <jmiller@zurich.ai.mit.edu>

	* microcode/: bkpt.c (9.29), bkpt.h (9.30): Reversed the
	conditionalization so that we can support ENABLE_DEUBGGING_FLAGS
	again.

1993-11-02 22:46  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.2): fixed delete-min!

1993-11-02 22:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.212): fixed wt-tree/delete-min!

1993-11-02 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.19): Implement code to query user about
	overwriting files in M-x load-problem-set.

1993-11-02 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.44): ERROR-DECISION can't be done inside the
	REPL message, because that message is protected by IGNORE-ERRORS. 
	If another error occurs during the decision, it must start a nested
	REPL.

1993-11-02 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.77): Guarantee that ERROR-DECISION aborts the
	REPL in all cases.

1993-11-02 15:59  Jim Miller <jmiller@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.6): Changed "unsigned long" to "long" to
	avoid spurious range errors signalled by arg_integer.

1993-11-02 15:13  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/option.scm (14.25): Added wt-tree option

1993-11-02 15:10  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/wttree.scm (1.1): Initial revision

1993-11-02 15:07  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.211): added weight-balanced trees package

1993-11-02 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.15): Call SAVE-SOME-BUFFERS as part of
	CHECKPOINT-FLOPPY.

1993-11-01 18:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.75): Add builtin_index_to_name, missing
	when there is no compiler support.

1993-11-01 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.37): Patch to allow a "Configure" event
	to mark the window as "mapped".  Yukk.	Whether or not the "mapped"
	event shows up depends on the geometry string!

1993-11-01 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.36): New code to generate display object
	in X-GRAPHICS/OPEN.

1993-11-01 11:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.5): Fix cast and typo.

1993-11-01 10:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.4): Make INVOKE-C-THUNK return a value. 
	Add ADDRESS-TO-STRING.

1993-11-01 10:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.9), microcode/liarc.h (1.8):
	dynamic initialization need not know the block name.

1993-11-01 10:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.10): Fix a problem when disk-restoring.
	 The blocks data structure was not being reinitialized correctly.
	
	Add a performance counter.

1993-10-31 13:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.8): Add newlines after every
	argument to RCONSM to make lines shorter.

1993-10-31 11:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.73): Fix problem with disk-restore
	complaining about lack of space when restoring the same band it is
	running!

1993-10-31 00:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules3.scm (1.7): Remove some spurious
	macros.

1993-10-31 00:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.7): - Canonicalize procedure
	names as well as labels, including the directory component.
	
	- Add a limit to the level of nesting of procedure calls used to
	generate constants.

1993-10-30 14:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.9): Fix braino: Multiplying
	compiled_entries_size by a constant (or initializing to a constant)
	does not guarantee that the table is large enough for the current
	batch of entries.

1993-10-30 13:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.8): Fix off-by-one error.

1993-10-30 09:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/lapgen.scm (1.9): Replace use of Rfp with
	Rhp.

1993-10-30 08:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/: TODO (1.4), cout.scm (1.6), ctop.scm (1.2),
	lapgen.scm (1.8), rules1.scm (1.5), rules3.scm (1.6): Redo some
	things: - User Marc Feeley's hack for making the default case in
	the switch   statements handle all cross-block jumps.  - Divide the
	data and code sections so the data sections can be   eliminated
	from the link avoiding the need to recompile the code	sections.

1993-10-29 23:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: liarc.h (1.7), compinit.c (1.3), comutl.c (1.29),
	cmpint.c (1.74): Two major changes to the C back end: - Redo the
	way that descriptors are done to improve speed.    The default
	clause in each switch statement is now the only way to	  get out
	of a block.    All JUMPs merely jump back to the dispatch point.
	
	- Divide initialization code into code and data, to allow splitting
	  of the sources into two components.

1993-10-29 23:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/c.c (1.7), cmpintmd/c.h (1.4): Two major
	changes: - Redo the way that descriptors are done to improve speed.
	   The default clause in each switch statement is now the only way
	to    get out of a block.    All JUMPs merely jump back to the
	dispatch point.
	
	- Divide initialization code into code and data, to allow splitting
	  of the sources into two components.

1993-10-29 19:21  Nick Papadakis <nick@zurich.ai.mit.edu>

	* compiler/README (1.1): Initial revision

1993-10-29 19:08  Nick Papadakis <nick@zurich.ai.mit.edu>

	* microcode/hppacach.mc (1.1): Initial revision

1993-10-29 19:02  Nick Papadakis <nick@zurich.ai.mit.edu>

	* microcode/getpgsz.h (1.1): Initial revision

1993-10-29 18:59  Nick Papadakis <nick@zurich.ai.mit.edu>

	* edwin/README (1.1), microcode/TODO (1.1),
	microcode/ntutl/mincer.ico (1.1): Initial revision

1993-10-29 18:56  Nick Papadakis <nick@zurich.ai.mit.edu>

	* compiler/machines/: alpha/TODO (1.1), spectrum/TODO (1.1):
	Initial revision

1993-10-29 18:52  Nick Papadakis <nick@zurich.ai.mit.edu>

	* compiler/documentation/: facts.txt (1.1), files.txt (1.1),
	notes.txt (1.1), todo.txt (1.1), TASKS (1.1), INSTALL (1.1):
	Initial revision

1993-10-28 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.49): Patch TRANSCRIPT-WRITE to work even if
	the transcript buffer is read-only.

1993-10-28 11:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules1.scm (1.4): Remove remaining reference
	to ulong.

1993-10-28 01:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules3.scm (1.5): Add missing special
	invocations.

1993-10-28 00:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: C/lapgen.scm (1.7), spectrum/lapgen.scm
	(4.45): Update the code table.

1993-10-28 00:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rulrew.scm (1.3): Add a floating-vector
	rewrite rule.

1993-10-28 00:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rulflo.scm (1.4): Fix floating-vector rules.

1993-10-28 00:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/lapgen.scm (1.6), microcode/liarc.h (1.6):
	Redo "word" registers.	Rather than having specific C variables,
	and casting up the wazoo, there is now a union type for pointers
	and word values, and components are selected as needed.

1993-10-27 22:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rulfix.scm (1.2): Reformat some code to fit
	in 80 columns.

1993-10-27 22:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules3.scm (1.4): Remove fossil.

1993-10-27 22:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules1.scm (1.3): Fix mangled character
	constant.  Replace incorrect use of LONG with ULONG.

1993-10-27 22:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/: machin.scm (1.5), rgspcm.scm (1.2): Enable
	open-coding of certain primitives.

1993-10-27 21:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.3): Add dropped *.

1993-10-27 19:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prim.c (9.37), bignmint.h (1.4): Remove uses of UL. 
	Non-ANSI compilers (e.g. SunOS) can't handle it.

1993-10-27 19:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dstack.h (1.8): Remove SunOS conflicts when using Sun's
	cc.

1993-10-27 19:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.6): Fix broken declarations.

1993-10-27 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.233), intmod.scm (1.76), notify.scm (1.12):
	Implement mechanism to deregister inferior threads, and call it
	from the appropriate places.  If this isn't done it's too easy to
	hold on to a pointer to the thread, which prevents the thread from
	being reclaimed by the GC.

1993-10-27 19:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.5): Fix signed problems on Alpha.

1993-10-27 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.75): Fix bug: inferior REPL thread was never
	being killed.

1993-10-27 18:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ux.c (1.12), ux.h (1.53), uxio.c (1.32), uxsock.c
	(1.13): Conditionalize for SunOS 4.1.?

1993-10-27 18:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.68): Include os.h so that things like
	size_t are defined.

1993-10-27 18:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/obstack.h (1.9): SunOS 4.1.? declares abort to return
	int.

1993-10-27 18:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dstack.h (1.7): SunOS 4.1.? declares abort to return
	void.

1993-10-27 18:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.2): Make it work under SunOS (and perhaps
	Alpha OSF).

1993-10-27 18:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules3.scm (1.3): Use CONST instead of const,
	since the C compiler may not be ANSI compliant.

1993-10-26 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.48): Change PROMPT-FOR-EXPRESSION so that
	variable-name completion in the typein buffer uses the environment
	of the buffer that was current when PROMPT-FOR-EXPRESSION was
	called.

1993-10-26 22:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.161): Generalize PROMPT-FOR-STRING to allow
	an initialization procedure to be used in place of the mode.

1993-10-26 21:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.26): Fix bug: when buffer visible in two or
	more windows, buffer change that affected the modeline didn't
	update the modeline unless the change was visible in the window.

1993-10-26 21:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.82): Disable Alpha shadowing of malloc when
	using the C back end.

1993-10-26 20:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/liarc.h (1.5): Remove unnecessary definition.

1993-10-26 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.140): Fix typo in last change.

1993-10-26 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.8): Fix stupid think-o.

1993-10-26 19:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.139), dos.scm (1.12), unix.scm (1.39):
	Implement M-x dired-clean-directory.

1993-10-26 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: numpar.scm (14.8), runtime.pkg (14.210): Implement
	SUBSTRING->NUMBER.

1993-10-26 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.26): Eliminate unused variable.

1993-10-26 17:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.52): Don't automatically delete a tags-search
	buffer unless that buffer truly hasn't been modified.  Previously,
	this was detected by checking the MODIFIED? flag of the buffer, but
	that is cleared if the file is written out.  Now, it checks to see
	if any modifications have occurred since the file was read in.

1993-10-26 17:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.138): Disallow renaming or copying a file to
	an existing file.

1993-10-26 17:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debug.scm (1.25), edwin.pkg (1.141): * Killing debugger
	buffer no longer deletes the buffer's screen; that   happens only
	when M-x browser-quit is invoked, and the screen was   created for
	the debugger.
	
	* Selection of a screen for a debugger buffer is now simpler.  If  
	desired, a new screen is created (previously this was not an option
	  if there was already more than one screen).  Otherwise, the
	current   screen is used.  No other existing screen will ever be
	used.
	
	* The X-windows-specific screen geometry stuff has been  
	conditionalized so that it will not be used unless running under X.

1993-10-26 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.74): Change debugger invocation to call the
	command M-x browse-continuation.

1993-10-26 16:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rulflo.scm (1.3): Upcase types for
	consistency.

1993-10-26 15:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/compiler.pkg (1.5): Change needed to
	resurrect the C back end.

1993-10-26 15:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.61): Change needed to resurrect the
	C back end.

1993-10-26 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.109): Can't extract restart from condition,
	it's often not the right restart.

1993-10-26 13:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rules3.scm (1.2): Fix casting problem in
	move-frame-up.

1993-10-26 13:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/liarc.h (1.4): Add ifdefs for
	COMPILE_FOR_DYNAMIC_LOADING

1993-10-25 23:04  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* microcode/: boot.c (9.86), dosconio.c (1.12), intercom.c (9.30),
	liarc.h (1.3), ntsig.c (1.15), primutl.c (9.67), cmpauxmd/c.c
	(1.4): These changes were to bring the C backend back to life.

1993-10-25 23:02  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/: cout.scm (1.5), lapgen.scm (1.5),
	rules1.scm (1.2), rulflo.scm (1.2): These changes were to bring the
	C backend back to life.  The major changes that were made was
	adding direct calls for floating point operations as well as using
	the new rules for floating point vectors (change in RTL syntax).

1993-10-25 22:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/machin.scm (1.4): Fix
	interpreter-environment-register? which had not been updated to use
	the new rtl format.

1993-10-25 22:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.73), comutl.c (1.28): Rename
	declare_compiled_code to declare_compiled_code_block.  The name
	declare_compiled_code was already in use by the C back end.

1993-10-25 21:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.24): Fix crufty problem with highlighting --
	indentation was highlighted instead of text!

1993-10-25 20:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.24), comred.scm (1.108), debug.scm
	(1.23), editor.scm (1.232), evlcom.scm (1.47): Change
	RETURN-TO-COMMAND-LOOP to accept a condition as its sole argument. 
	The restart that it invokes is extracted from the condition, not
	from the current restarts, and if it is an ABORT-CURRENT-COMMAND
	condition, its input is processed.

1993-10-25 20:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.22): Earlier change I made was lost by
	careless edit -- put it back in.

1993-10-25 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.231): Bind notification-output-port to a null
	port that does not signal errors.

1993-10-25 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.7): Reformatting to fit on page.

1993-10-25 13:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.18): Suppress loading messages -- these
	formerly were harmless because the CMDL port soaked them up, now
	they signal errors.

1993-10-21 11:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.33): Fix typos.

1993-10-21 10:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.25), emacs.scm (14.19), error.scm
	(14.38), fileio.scm (1.7), genio.scm (1.3), packag.scm (14.18),
	pathnm.scm (14.27), poplat.scm (14.3), port.scm (1.7), prop1d.scm
	(14.5), strnin.scm (14.4), strott.scm (14.4), strout.scm (14.8),
	ttyio.scm (1.4), urtrap.scm (14.3), x11graph.scm (1.35): * New port
	operation WRITE-SELF is like PRINT-SELF except that it uses  
	STANDARD-UNPARSER-METHOD rather than UNPARSER/STANDARD-METHOD.
	
	* Rewrite instances of PRINT-SELF using WRITE-SELF.  Rewrite
	instances   of UNPARSER/STANDARD-METHOD using
	STANDARD-UNPARSER-METHOD.

1993-10-21 09:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: boot.scm (14.10), output.scm (14.16), runtime.pkg
	(14.209), unpars.scm (14.32): * Implement new procedure
	STANDARD-UNPARSER-METHOD.  This has a	less-idiosyncratic
	interface than UNPARSER/STANDARD-METHOD.  Uses of   the latter
	should be replaced with the former.
	
	* Implement new procedure WITH-CURRENT-UNPARSER-STATE which calls
	its   second argument with the port from its first.  The other
	components   of the state are fluid-bound so that they become the
	defaults for   calls to WRITE and DISPLAY.
	
	* GUARANTEE-UNPARSER-STATE and GUARANTEE-UNPARSER-TABLE now take an
	  addition argument, the name of the procedure testing its
	argument.

1993-10-21 08:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.43): Remove ERROR-OUTPUT-PORT.

1993-10-21 08:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.37), port.scm (1.6), rep.scm (14.42),
	runtime.pkg (14.208): Remove ERROR-OUTPUT-PORT.

1993-10-21 07:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.41): * Define new standard ports to replace
	nearly all instances of   NEAREST-CMDL/PORT.  When a CMDL starts,
	it binds all of these ports   to the CMDL port; but they can each
	be rebound separately without	affecting the CMDL port.
	
		(ERROR-OUTPUT-PORT)		errors and warnings
		(NOTIFICATION-OUTPUT-PORT)	load messages, etc.
		(TRACE-OUTPUT-PORT)		output from TRACE
		(INTERACTION-I/O-PORT)		prompting
	
	* Implement IGNORE-ERRORS procedure.  Change WRITE-CONDITION-REPORT
	so   that it ignores errors that occur while writing the report,
	but only   if the condition being reported is an error condition.
	
	* Implement GUARANTEE-I/O-PORT.

1993-10-21 07:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.13), error.scm (14.36), fileio.scm
	(1.6), gcnote.scm (14.10), global.scm (14.46), input.scm (14.16),
	load.scm (14.45), output.scm (14.15), packag.scm (14.17), port.scm
	(1.5), rep.scm (14.40), runtime.pkg (14.207), uerror.scm (14.35),
	usrint.scm (1.9), version.scm (14.165): * Define new standard ports
	to replace nearly all instances of   NEAREST-CMDL/PORT.  When a
	CMDL starts, it binds all of these ports   to the CMDL port; but
	they can each be rebound separately without   affecting the CMDL
	port.
	
		(ERROR-OUTPUT-PORT)		errors and warnings
		(NOTIFICATION-OUTPUT-PORT)	load messages, etc.
		(TRACE-OUTPUT-PORT)		output from TRACE
		(INTERACTION-I/O-PORT)		prompting
	
	* Implement IGNORE-ERRORS procedure.  Change WRITE-CONDITION-REPORT
	so   that it ignores errors that occur while writing the report,
	but only   if the condition being reported is an error condition.
	
	* Implement GUARANTEE-I/O-PORT.

1993-10-21 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.46): Change the evaluation commands to bind
	the default input port to a dummy port that signals an error if it
	is read from.

1993-10-21 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.230): Instantiate the editor CMDL with a
	dummy I/O port that signals an error if it is read from or written
	to.  Define the CHILD-PORT operation on that CMDL so that spawning
	a another CMDL under the editor CMDL (e.g. by
	DEBUG-INTERNAL-ERRORS? being true) will cause the child to use the
	port that was in effect when the editor was started.

1993-10-21 00:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.73): Since REPL/START now binds the current
	input and output ports, there's no reason for them to be bound a
	second time here.

1993-10-21 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.39), runtime.pkg (14.206): Change MAKE-CMDL
	to allow the I/O port to be specified as #F, which means to inherit
	from the parent.  Change PUSH-CMDL to use this specification.  The
	parent can override this by defining a CHILD-PORT operation.
	
	Also change CMDL/START to bind the current input and output ports.

1993-10-20 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.16): Grumble; fix stupid thinko from last
	change.

1993-10-20 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.15): Grumble; fix stupid thinko from last
	change.

1993-10-20 17:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.38): Allow parent CMDL to override the port
	used for spawning children.

1993-10-20 16:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.25): Replace Constant_Top with
	Stack_Bottom in out-of-line code for set-interrupt-enables.

1993-10-19 04:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.14): Generalize interface to hash tables so
	that users can construct efficient address-based hashing
	procedures.

1993-10-19 03:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hashtb.scm (1.13), runtime.pkg (14.205): Generalize
	interface to hash tables so that users can construct efficient
	address-based hashing procedures.

1993-10-18 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.77): Don't invoke variable assignment daemons
	if the editor is not running.

1993-10-18 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (14.18), edwin/intmod.scm (1.72): Don't do
	STRING-TRIM on PROMPT-FOR-COMMAND- strings.

1993-10-17 07:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.11): Change Constant_Top to
	Stack_Bottom in set_interrupt_enables.	This was necessitated by
	recent changes to the microcode.

1993-10-16 13:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/pc-make.scm (1.1): Initial revision

1993-10-16 08:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/image.scm (1.131): Fix fencepost bug.

1993-10-16 07:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.71): Fix typo in last change.

1993-10-16 06:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.38): Generate minibuffer message while
	automatically decompressing files.

1993-10-16 06:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.8), runtime/rep.scm (14.37),
	runtime/dbgcmd.scm (14.14), runtime/emacs.scm (14.17),
	edwin/intmod.scm (1.70): Change PROMPT-FOR-COMMAND-xxx port
	operations to take an additional argument, which is a level number;
	(NEAREST-CMDL/LEVEL) is passed for this argument.

1993-10-16 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: debug.scm (1.21), artdebug.scm (1.23): Fix old typo.

1993-10-16 03:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: intmod.scm (1.69), prompt.scm (1.160): Prompting commands
	now do standard modifications to prompt strings BEFORE passing them
	to custom operations; operations must compensate.

1993-10-16 03:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: usrint.scm (1.7), emacs.scm (14.16): Change prompting
	commands to do standard modifications to prompt strings BEFORE
	passing them to custom operations.

1993-10-16 02:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.6): Restrict result of
	PROMPT-FOR-COMMAND-CHAR to be a graphic character.

1993-10-16 02:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.68): Perform prompting differently: always
	use the current CMDL level as the level in the modeline, and
	recognize DEBUG and WHERE prompts as needing suppression.

1993-10-16 01:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (14.15): Perform prompting differently: always
	send the current CMDL level as part of the prompt, and allow a new
	form of prompt that prints stuff in the Scheme buffer.

1993-10-16 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.67): Fix typo.

1993-10-15 19:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.66): Clarify handling of run lights for
	inferior-REPL buffers.	There is now a "global" REPL buffer that is
	responsible for driving the "global" run light.  Run lights of
	individual REPL buffers are handled separately.

1993-10-15 19:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.140.1.1): Update to match Unix version 1.140.

1993-10-15 08:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: evlcom.scm (1.45), intmod.scm (1.65), edwin.pkg (1.140):
	When evaluate-in-inferior-repl is true, distinguish between
	evaluations done in inferior REPL buffers and evaluations done in
	other buffers (and the minibuffer); change the latter so that the
	value of the evaluation is printed in the minibuffer, just as it
	would have been if evaluate-in-inferior-repl were false. 
	Furthermore, if there is no inferior REPL, M-x eval-expression now
	works anyway.

1993-10-15 06:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.12), emacs.scm (14.14), error.scm
	(14.35), load.scm (14.44), rep.scm (14.36), runtime.pkg (14.204),
	usrint.scm (1.5): * Breakpoints have been reimplemented to use the
	condition system.  A   breakpoint is now a condition, and the
	continuation of that   condition is the continuation of the
	breakpoint.  (The debugger   will not show the internal frames of
	the breakpoint any more.)
	
	* The procedure BREAKPOINT now takes a condition as an additional  
	optional argument.
	
	* The environment of a breakpoint may be specified as the symbol  
	CONTINUATION-ENVIRONMENT, in which case the breakpoint signaller  
	will attempt to extract an environment from the continuation.  If  
	that fails, it uses the REPL environment, and prints a message	
	informing the user that it was unable to find an appropriate  
	environment for the breakpoint.
	
	* CMDL/START has been modified to detect the situation where the  
	thread starting the CMDL is not the owner of its port.	Previously 
	 this check was done only for errors.  As a result of this change, 
	 CONDITION-TYPE:DERIVED-THREAD-ERROR has been generalized to accept
	  any kind of condition, not just error conditions.
	
	* The WRITE-RESULT output-port operation has been redefined to
	accept	 an additional argument: the expression that was evaluated
	to produce   the value being printed.  This expression is useful if
	the   CURRENT-EXPRESSION-CONTEXT operation is implemented; it is
	the key   needed to get the context information.  As a result of
	this change,   HOOK/REPL-WRITE was redefined to accept the same
	additional   argument.
	
	* A new procedure CURRENT-LOAD-PATHNAME has been defined.  When a
	file   is being loaded, this procedure returns that file's
	pathname.  At	other times, it signals an error of type
	CONDITION-TYPE:NOT-LOADING.    LOAD/PUSH-HOOK! has been changed to
	signal this error in the same	 situation, rather than the
	anonymous error it signalled before.

1993-10-15 06:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.36): Handle eval-boundary frame when it is
	the first subproblem in the continuation being debugged.

1993-10-15 01:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: evlcom.scm (1.44), filcom.scm (1.178): Change special
	treatment of evaluate-in-inferior-repl and run-light editor
	variables.  These variables are now given buffer-local values to
	disable the use of an inferior repl when either scheme-environment
	or scheme-syntax-table is given a local binding that overrides the
	default.  Also, these automatic bindings are only performed if the
	variables do not already have buffer-local bindings.

1993-10-14 22:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.76): * Editor variables can now define a
	procedure that will "normalize"   their values.  The
	DEFINE-VARIABLE has been extended to allow the	 specification of
	this normalization procedure to follow the   specification of a
	validity test.
	
	* New procedure VARIABLE-LOCAL-VALUE? is true iff the given
	variable   is locally bound in the given buffer.
	
	* Procedure VARIABLE-VALUE-VALID? has been eliminated.

1993-10-14 20:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/default.h (9.42): Fix broken #endif.

1993-10-14 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.164), comman.scm (1.75), macros.scm (1.61),
	hlpcom.scm (1.107): * Editor variables can now define a procedure
	that will "normalize"	their values.  The DEFINE-VARIABLE has been
	extended to allow the	specification of this normalization
	procedure to follow the   specification of a validity test.
	
	* New procedure VARIABLE-LOCAL-VALUE? is true iff the given
	variable   is locally bound in the given buffer.
	
	* Procedure VARIABLE-VALUE-VALID? has been eliminated.

1993-10-14 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sercom.scm (1.63): Eliminate random local variable bindings
	at file's end.

1993-10-14 17:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/tterm.c (1.4): Update date.

1993-10-14 17:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchpur.c (9.63), ppband.c (9.47), bintopsb.c (9.57),
	bchgcl.c (9.48), default.h (9.41), dostrap.h (1.3), storage.c
	(9.54): Update date.

1993-10-14 15:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: gccode.h (9.52), storage.c (9.53), gcloop.c (9.43),
	sysprim.c (9.39), intrpt.h (1.16): Change Scheme memory layout and
	make constant space grow as needed when things are purified.

1993-10-14 15:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasdump.c (9.57), bchdmp.c (9.73), object.h (9.43),
	bchgcl.c (9.47), default.h (9.40), boot.c (9.85), version.h
	(11.144), uxtrap.c (1.24), stack.h (9.36), dostrap.c (1.5): Change
	Scheme memory layout and make constant space grow as needed when
	things are purified.

1993-10-14 15:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: interp.c (9.79), purutl.c (9.46), ppband.c (9.46),
	bintopsb.c (9.56), psbtobin.c (9.50), fasload.c (9.72): Change
	Scheme memory layout and make constant space grow as needed when
	things are purified.

1993-10-14 15:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: nttrap.c (1.9), bchmmg.c (9.82), bchgcc.h (9.55),
	bchpur.c (9.62), purify.c (9.52), memmag.c (9.56), extern.h (9.51):
	Change Scheme memory layout and make constant space grow as needed
	when things are purified.

1993-10-14 06:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.8): Allow MAKE-RANDOM-STATE to accept #T
	as an argument.

1993-10-14 05:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.7): Allow MAKE-RANDOM-STATE to accept #T
	as an argument.

1993-10-13 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.9): Fix definition of STRING-PAD-LEFT:
	it's supposed to truncate from the left, not the right.

1993-10-12 20:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.sf (1.14), C/compiler.sf
	(1.2), alpha/compiler.sf (1.2), bobcat/compiler.sf (1.14),
	i386/compiler.sf (1.4), mips/compiler.sf-big (1.4),
	mips/compiler.sf-little (1.4), vax/compiler.sf (1.5): Eliminate
	another vestige of "base/hashtb".

1993-10-12 19:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: C/decls.scm (1.3), alpha/decls.scm (1.5),
	bobcat/decls.scm (4.36), i386/decls.scm (1.7), mips/decls.scm
	(1.9), sparc/decls.scm (1.3), spectrum/decls.scm (4.34),
	vax/decls.scm (4.12): Fix think-o in last change.

1993-10-12 18:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hashtb.scm (1.12), runtime.pkg (14.203): Change names: 
	    hash-table/strong-constructor   =>
	strong-hash-table/constructor	     hash-table/weak-constructor   
	 => weak-hash-table/constructor

1993-10-12 03:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/decls.scm (4.33), vax/compiler.cbf
	(1.5), vax/compiler.pkg (1.19), vax/decls.scm (4.11): Eliminate
	"base/btree" and "base/hashtb" files.  Rewrite code to use runtime
	system's rb-tree and hash-table abstractions.

1993-10-12 03:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/symtab.scm (1.45), base/infnew.scm (4.10),
	base/make.scm (4.100), rtlbase/rtlobj.scm (4.11),
	machines/C/compiler.cbf (1.2), machines/C/compiler.pkg (1.4),
	machines/C/decls.scm (1.2), machines/alpha/compiler.cbf (1.2),
	machines/alpha/compiler.pkg (1.9), machines/alpha/decls.scm (1.4),
	machines/bobcat/compiler.cbf (1.2), machines/bobcat/compiler.pkg
	(1.47), machines/bobcat/decls.scm (4.35),
	machines/i386/compiler.cbf (1.3), machines/i386/compiler.pkg
	(1.19), machines/i386/decls.scm (1.6), machines/mips/compiler.cbf
	(1.2), machines/mips/compiler.pkg (1.17), machines/mips/decls.scm
	(1.8), machines/sparc/decls.scm (1.2),
	machines/spectrum/compiler.cbf (1.2),
	machines/spectrum/compiler.pkg (1.45): Eliminate "base/btree" and
	"base/hashtb" files.  Rewrite code to use runtime system's rb-tree
	and hash-table abstractions.

1993-10-11 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.14): Use SYMBOL<? defined by runtime system.

1993-10-11 20:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/symbol.scm (1.3), cref/object.scm (1.7): SYMBOL=? was
	dumb mistake.  Deleted.

1993-10-11 19:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: conpkg.scm (1.4), cref.pkg (1.5), cref.sf (1.6),
	forpkg.scm (1.8), make.scm (1.9), object.scm (1.6), redpkg.scm
	(1.5), toplev.scm (1.6), triv.con (1.4), triv.ldr (1.3): Eliminate
	BTREE data structure, replacing it with RB-TREE implementation that
	is built in to the runtime system.  This replacement improves
	overall performance by a factor of three.

1993-10-11 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/symbol.scm (1.2): New procedures SYMBOL=? and SYMBOL<?.

1993-10-11 07:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.78): Use new procedures RE-MATCH-DATA and
	SET-RE-MATCH-DATA! in an attempt to guarantee that the match data
	isn't trashed by hidden calls to the matching code.  Use
	SAVE-EXCURSION to preserve the values of point and mark when doing
	a recursive edit.

1993-10-11 07:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: regexp.scm (1.65), edwin.pkg (1.139): Implement
	RE-MATCH-DATA and SET-RE-MATCH-DATA! to allow more general control
	over match data.

1993-10-11 07:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.110): Implement SAVE-EXCURSION.

1993-10-11 06:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.11): * SET-HASH-TABLE/REHASH-THRESHOLD! now
	preserves the table's usable   size.  Previously it preserved the
	physical size.
	
	* SET-HASH-TABLE/REHASH-SIZE! now might reduce the table's usable
	size   if the new value adjusts the shrink threshold upwards.
	
	* The REHASH-SIZE of a table is now used to adjust the usable size
	(as   documented).  Previously it was adjusting the physical size.
	
	* If an INITIAL-SIZE is given, the table's usable size is
	initialized   to that value.  Subsequently, the usable size does
	not change until   the table's count exceeds it, at which point
	normal resizing   (growing AND shrinking) begins.  If the
	INITIAL-SIZE is not given or   is #F, the table is initialized to
	some unspecified usable size and   resizes itself according to
	need.

1993-10-10 06:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hashtb.scm (1.10), runtime.pkg (14.202): Implement
	MAKE-EQUAL-HASH-TABLE.	Change EQV? hash tables to hold onto
	numbers strongly; other pointer objects are still held weakly.

1993-10-10 04:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/equals.scm (14.5): Use fixnum arithmetic on vectors. 
	Convert explicit type code tests to predicates that open-code into
	the same thing.

1993-10-10 03:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: gconst.scm (4.17), usiexp.scm (4.19): Arrange for CELL? to
	be open-coded by the compiler.

1993-10-09 04:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.201), hashtb.scm (1.9):
	HASH-TABLE/STRONG-CONSTRUCTOR and HASH-TABLE/WEAK-CONSTRUCTOR
	simplify definition of most common constructors.

1993-10-09 03:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.8): Fix rehashing code to handle invalid
	keys correctly.  Merge two places that did rehashing into a single
	procedure.

1993-10-08 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.7): Fix think-o in previous change.

1993-10-08 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.200), hashtb.scm (1.6): Implement
	eqv?-hash tables.

1993-10-08 07:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hashtb.scm (1.5), runtime.pkg (14.199): Implementation
	of new, very efficient EQ?-hash tables.  These tables use address
	hashing, automatically rehash themselves when garbage collections
	move their keys around, and automatically clean themselves as their
	keys are reclaimed by the GC.  MAKE-EQ-HASH-TABLE is used to create
	these tables; MAKE-OBJECT-HASH-TABLE and MAKE-SYMBOL-HASH-TABLE are
	now aliases for this new procedure.
	
	HASH-TABLE/SIZE now returns the "usable size" of the table, as
	claimed by the documentation, rather than the "physical size".
	
	New enumeration procedures HASH-TABLE->ALIST, HASH-TABLE/KEY-LIST,
	and HASH-TABLE/DATUM-LIST.

1993-10-08 05:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rbtree.scm (1.4): Modify RB-TREE->ALIST,
	RB-TREE/KEY-LIST, and RB-TREE/DATUM-LIST to be iterative rather
	than recursive.  Previously they were recursive with a stack depth
	proportional to the length of the result; since balanced trees are
	designed for use with very large collections this was disastrous.

1993-10-07 02:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rbtree.scm (1.3), hashtb.scm (1.4): Limit interrupt
	locking to minimum needed for single process.  This protects
	against interrupts occurring during a critical section, but does
	not prevent concurrent access to the data structures.

1993-10-07 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hashtb.scm (1.3), runtime.pkg (14.198): Complete
	rewrite of hash-table implementation to improve efficiency, to
	implement shrinking of hash tables, and to fix amortization of
	table growth.

1993-10-06 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rbtree.scm (1.2), runtime.pkg (14.197): Add
	type-checking of tree arguments and interrupt locking.	Add new
	operations RB-TREE/KEY-LIST and RB-TREE/DATUM-LIST.

1993-10-05 22:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.117), edwin.pkg (1.138): Add new editor
	variable info-selection-key which implements mouse-sensitive,
	highlighted regions for selecting Info nodes and menu items.

1993-10-05 21:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.137), comtab.scm (1.64): Export COMTAB-KEY?
	which is true of keys that can be placed in comtabs.

1993-10-05 21:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.136): Export new Info editor variable.  Also
	export Info commands.

1993-10-05 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: txtprp.scm (1.13), edwin.pkg (1.135), debug.scm (1.20):
	Define some procedures to hide the use of the text-property
	mechanism for highlighting, local comtabs, and read-only regions.

1993-10-05 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: txtprp.scm (1.12), undo.scm (1.56), bufwfs.scm (1.18),
	edwin.pkg (1.134): Major rewrite of text property mechanism.  New
	implementation uses red/black trees for properties within
	intervals, and uses red/black balancing algorithm for intervals. 
	Interface to editor is simplified, as is the interface to the undo
	mechanism.  The redisplay code no longer uses the internals of the
	implementation, but instead uses standard external entries. 
	Adjacent intervals are now merged together when their property sets
	are the same; property data are compared for equality using EQV?.

1993-10-05 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.46): Load red/black tree implementation for
	use by text-property code.

1993-10-05 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.177): Fix think-o: argument to
	SET-VISITED-PATHNAME might be #F.

1993-10-05 03:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rbtree.scm (1.1): Initial revision

1993-10-05 03:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: option.scm (14.24), runtime.pkg (14.196): Add red/black
	tree datatype option.

1993-10-03 20:03  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/errors.h (9.41): [no log message]

1993-09-30 15:21  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/: rmailsum.scm (1.32), edwin.ldr (1.45), rmail.scm (1.30),
	loadef.scm (1.25): Made rmailsum.scm part of the default edwin
	system (i.e. it's no longer an autoload) to fix a bug in
	RMAIL-CEASE-EDIT (rmail-summary-buffer was unassigned if
	rmailsum.scm wasn't loaded).

1993-09-30 13:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.195): exported FOLD-LEFT and FOLD-RIGHT
	to ()

1993-09-30 13:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/list.scm (14.18): Added fold-left and fold-right

1993-09-23 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.31): Redo last change -- can't just
	rewrite frame elements because that potentially screws up operation
	that builds continuations from stack frames.

1993-09-23 03:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.107): Don't treat input events as commands
	unless they're button events.  Even the latter case doesn't always
	want to be treated that way, but there's no good way to figure out
	what the correct treatment is.

1993-09-23 03:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.25): "Clever" fix to handle case of deletion
	to window start causes "point not visible at end of redisplay"
	error.	This happens when the start mark is clobbered and the new
	start is not near enough to the point; for example by deleting some
	text, then replacing it with itself.
	
	Also, somehow UPDATE-OUTLINES! is getting called with FORCE-REDRAW?
	and the CURRENT-START-MARK both false, which shouldn't be able to
	happen; compiled code deals with this by treating #f as 0.  This
	change fixes this unusual case.

1993-09-22 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.30): Stack-marker frames must be
	identifiable as such.  Several things depend on this.  Also, it's
	very undesirable for such frames to be identified as subproblem
	frames; if so, they clutter up the debugger output significantly.

1993-09-21 14:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/nttrap.c (1.8): Add a kludge to prevent a double-fault
	under Windows 3.1

1993-09-21 13:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/nttrap.c (1.7): Allow other guard page accesses to
	continue.  Set the stack protection boundary to the page before
	Stack_Guard so that the interpreter will find its own problems.

1993-09-20 16:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gc.scm (14.15): Missing unguarded cdr of the result of
	purify.

1993-09-20 15:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gc.scm (14.14): Take cdr of pairs only.

1993-09-20 15:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gc.scm (14.13): Avoid infinite loop.

1993-09-20 15:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gc.scm (14.12): Simplify interface to purify.

1993-09-20 15:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gc.scm (14.11): default/gc-flip should always flip, even
	when purify fails.

1993-09-20 13:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: config.bat (1.6), makefile (1.13): Add .cur
	files.

1993-09-19 21:13  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/: dib.scm (1.1), ffimacro.scm (1.1), graphics.scm (1.1),
	make.scm (1.1), module.scm (1.1), protect.scm (1.1), wf_user.scm
	(1.1), win32.cbf (1.1), win32.pkg (1.1), win32.sf (1.1),
	win_ffi.scm (1.1), wingdi.scm (1.1), winnt.scm (1.1), winuser.scm
	(1.1), wt_user.scm (1.1): Initial revision

1993-09-19 18:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/make.scm (14.49): Altered order of graphics
	initialization to make X the default graphics device type (in
	preference to starbase).

1993-09-18 01:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gc.scm (14.10): purify can now return three possible
	status codes: - true: did it.  - false: cannot do it.  - otherwise:
	can do it, but not at this gc.

1993-09-16 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.9): Fix old typo.

1993-09-16 18:47  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/ntgui.rc (1.5): Added VERSIONINFO resource

1993-09-16 18:44  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.19): More frightening message when
	closing master_tty_window

1993-09-16 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.34): SCHEME-COMPLETE-SYMBOL now downcases the
	prefix that it is trying to complete; previously it did not which
	caused lossage when the prefix had upper-case characters in it.

1993-09-16 17:27  Stephen Adams <adams@zurich.ai.mit.edu>

	* win32/dibutils/: dibutils.c (1.1), dibutils.def (1.1), dibutils.h
	(1.1), dibutils.rc (1.1), makefile.msc (1.1): Initial revision

1993-09-16 11:56  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/ntgui.rc (1.4): Added icon & cursor

1993-09-16 11:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/: bch.ico (1.1), gc.cur (1.1): Initial revision

1993-09-15 16:55  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.34): Added x-graphics-default-geometry &
	..-default-display-name

1993-09-15 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.106): Make sure that keyboard macro
	definition is terminated when ^G is typed or when an error occurs.

1993-09-15 16:26  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.194): Globalized
	x-graphics-default-geometry & x-graphics-default-display-name

1993-09-15 00:14  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.33): * Added new graphics-device-type
	protocol - use 'X instrad of x-graphics-device-type * generalized
	X-IMAGE.  The CRAETE-IMAGE operation now returns   an IMAGE.  To
	get the orginal X-IMAGE, use   (image/descriptor IMAGE) * to draw
	image, use    (graphics-operation device 'draw-image x y image)

1993-09-15 00:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/starbase.scm (1.10): New graphics-device-type protocol

1993-09-15 00:08  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.6): Added generalized images

1993-09-15 00:07  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.193): Generalized graphics images

1993-09-14 21:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utils.c (9.64): Remove spurious comma that was legal
	but had the completely wrong effect!

1993-09-14 20:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/subst.scm (4.12): build-new-code was incorrectly passing scode
	to combination/optimizing-make.

1993-09-13 14:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: scheme16.c (1.7), scheme32.c (1.7), scheme31.c
	(1.5): offsets are not unsigned.  Make ntwntlib.c and ntw16lib.c
	timer interrupt handlers virtually identical.

1993-09-13 14:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntsig.c (1.14): Increase the catatonia period.  Loading
	large bands takes longer than 15 seconds.

1993-09-13 14:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.18): Add alloc_event_failure so that a
	breakpoint can be set easily.

1993-09-13 14:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscmlib.h (1.4): Offsets are not unsigned!

1993-09-13 14:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntfile.c (1.4): Open all files with read sharing.

1993-09-13 14:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/intrpt.h (1.15): Make COMPILER_SETUP_INTERRUPT test
	only for enabled interrupts.

1993-09-13 14:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/utils.scm (1.34): Close the interrupt window correctly.

1993-09-12 01:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.72): Take interrupts at the point at which
	the interrupt mask is restored.

1993-09-12 00:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.71): Fix mismatch in dummy version of
	do_bkpt_proceed.

1993-09-11 23:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hooks.c (9.53): Can't count.

1993-09-11 22:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.133.1.1): Update to match the Unix version.

1993-09-11 17:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.27), cmpintmd/hppa.h (1.46): Change
	breakpoint handles to non-marked-vectors to make the runtime
	system's life easier.

1993-09-11 17:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.29): Add the ability to parse special
	compiled code frames.

1993-09-11 17:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: udata.scm (14.16), conpar.scm (14.28): Add the ability
	to parse special compiled code frames.

1993-09-11 15:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.70): Distinguish between
	return-to-interpreter and reflect-to-interface.

1993-09-11 10:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.69): Make the interrupt window in
	breakpoint proceed narrower by taking all interrupts before
	actually proceeding.

1993-09-10 23:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.143): - Add a primitive facility to set
	breakpoints on compiled code.  - Improve with-interrupt-mask and
	with-stack-marker from compiled code.

1993-09-10 22:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.68), comutl.c (1.26), const.h (9.43),
	fixobj.h (9.35), hooks.c (9.52), ntgui.c (1.11), ntgui.h (1.6),
	ntsig.c (1.13), prosio.c (1.9), utabmd.scm (9.71): - Add a
	primitive facility to set breakpoints on compiled code.  - Improve
	with-interrupt-mask and with-stack-marker from compiled code.

1993-09-10 22:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/hppa.h (1.45), cmpauxmd/hppa.m4 (1.33): Add
	a primitive facility to set breakpoints on compiled code.

1993-09-10 18:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.17): Yet another pass at the alloc_event
	bug: have rewritten all the deallocation code.

1993-09-10 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.20), io.scm (14.37): Change
	BLOCK-ON-INPUT-DESCRIPTOR to return one of the three symbols:
	INPUT-AVAILABLE, PROCESS-STATUS-CHANGE, or INTERRUPT.  This call
	will now reliably return PROCESS-STATUS-CHANGE when the microcode
	signals such a change.

1993-09-10 15:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.46): Check for process status changes before
	blocking.  No longer need to treat INTERRUPT as a possible process
	status change since the runtime system has been modified to
	reliably produce the right result.

1993-09-10 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.31): Signal modeline events appropriately
	for changes to a process's status.  This guarantees that the
	modeline is updated correctly when the events occur.

1993-09-10 13:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.19): Generalize input descriptors -- test
	them using eqv? instead of =.

1993-09-09 19:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.31): Attempt to detect process status changes
	more reliably.

1993-09-09 18:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.45): Attempt to detect process status changes
	more reliably.

1993-09-09 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.133), txtprp.scm (1.11): Rename
	PREV-SPECIFIC-PROPERTY-CHANGE to PREVIOUS-SPECIFIC-PROPERTY-CHANGE.

1993-09-09 17:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: txtprp.scm (1.10), edwin.pkg (1.132): Rename
	GET-PROPERTY-AT to GET-TEXT-PROPERTY and TEXT-PROPERTIES-AT to
	GET-TEXT-PROPERTIES.

1993-09-09 17:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.131): Eliminate GET-PROPERTY which is now
	undefined.

1993-09-09 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.19): Eliminate unused variable warnings.

1993-09-09 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.18): Eliminate unused variable warnings.

1993-09-09 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.17): Change to use new property operations. 
	Repaginate.

1993-09-09 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: txtprp.scm (1.9), edwin.pkg (1.130): Implement new
	operations ADD-TEXT-PROPERTY and REMOVE-TEXT-PROPERTY.	Make type
	and range checking on modification operations more strict.  Add
	interrupt locking to the modification operations.  Fix some typos.

1993-09-09 14:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxsock.c (1.12), uxtrap.h (1.22): Linux patch.

1993-09-09 14:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ux.h (1.51), ux.h (1.52): Linux patch.

1993-09-09 14:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.54): Fix the error the right way.

1993-09-09 14:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.53): Add cast to eliminate warning.

1993-09-09 14:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.72): Linux patch.

1993-09-09 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.137): Fix bug: renaming last file in dired
	buffer to another directory signalled an error.

1993-09-08 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.32), version.scm (14.164): This is an
	incompatible change that requires microcode 11.142.  This change
	affects only the X11 graphics interface.
	
	Change handling of Configure events so that the runtime system
	receives them and instructs the microcode to do the
	reconfiguration.  This is necessary to get correct synchronization
	of these events.
	
	Additionally fix some bugs in the user-event mechanism.

1993-09-08 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11graph.c (1.31), version.h (11.142): This is an
	incompatible change that requires runtime 14.164.  This change
	affects only the X11 graphics interface.
	
	Change handling of Configure events so that the runtime system
	receives them and instructs the microcode to do the
	reconfiguration.  This is necessary to get correct synchronization
	of these events.

1993-09-08 15:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.176): Change find-file-hooks to pass the
	buffer to the event receivers.

1993-09-08 00:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntsig.c (1.12), ntgui.h (1.5), ntutl/scheme32.c
	(1.6), ntutl/scheme16.c (1.6): Prevent multiple catatonia messages.

1993-09-08 00:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: stack.h (9.35), memmag.c (9.55), bchmmg.c (9.81),
	nttrap.c (1.6): Add ability to detect stack overflow in NT/Windows.

1993-09-07 17:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.12): Add default value for the TERM
	environment variable.

1993-09-07 17:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.20): Default variables can now be
	initialized by running a thunk.

1993-09-07 17:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/utils.scm (1.33): Close interrupt window in
	string-allocate.

1993-09-07 17:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.78): Take interrupts immediately when
	restoring the interrupt mask.

1993-09-07 17:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.67): Check interrupts on return from
	primitives for the i386 back end.  i386 compiled code now checks
	for interrupts on the calling side of the return address, not the
	receiving side.

1993-09-07 15:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.10): Attempt to preclude multiple catatonia
	windows for showing up.

1993-09-07 15:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.16): Fix keyboard event storage leak. 
	Reduce input buffer size to 250.  Increase maximum screen size.

1993-09-07 15:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntsig.c (1.11): Reduce catatonia timer to 15 sec.

1993-09-04 03:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntscreen.c (1.15), ntsig.c (1.10), nttop.c (1.10):
	Add a catatonia timer.

1993-09-04 03:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntgui.c (1.9), ntgui.h (1.4), ntscreen.h (1.8): Add a
	catatonia timer.

1993-09-04 02:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntutl/makefile (1.12), ntutl/scheme16.c (1.5),
	ntutl/scheme31.c (1.4), ntutl/scheme32.c (1.5), ntscmlib.h (1.3):
	Add a catatonia timer.

1993-09-03 20:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/decls.scm (1.49): Add Arthur's debugger to the list of
	files to be processed.

1993-09-03 14:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.80): Change error output under NT.  The
	console-based interface doesn't work.

1993-09-03 14:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.129.1.1): Update to match Unix version.

1993-09-03 14:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntsys.c (1.4), ntsys.h (1.4), nttop.c (1.9): Fix
	version number.

1993-09-03 14:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntsig.c (1.9): Redo timers to use the Windows WM_TIMER
	mechanism.

1993-09-03 14:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.14): Redo timers to use the Windows
	WM_TIMER mechanism.  Fix problem with turds left behind when
	resizing the screen.

1993-09-03 13:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntenv.c (1.9), ntgui.c (1.8), ntscreen.h (1.7): Redo
	timers to use the Windows WM_TIMER mechanism.

1993-09-03 13:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prntio.c (1.2): Check for pre-buffered window events
	(i.e. keystrokes) before going off to MsgWaitForMultipleObjects.

1993-09-03 13:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/scheme32.c (1.4): Change the timer period.

1993-09-03 13:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: bch-cl3.lst (1.5), scm-cl3.lst (1.5), makefile
	(1.11): Flush ntutil

1993-09-03 02:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.18): Don't restart the real-time timer
	interrupt unless the restart would cause the interrupt to be
	delivered before it would have been otherwise.

1993-09-03 00:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/docstr.scm (1.1): Initial revision

1993-09-03 00:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comman.scm (1.74), decls.scm (1.48), edwin.pkg (1.129),
	edwin.ldr (1.44), ed-ffi.scm (1.32): Fix typo.	Split new doc
	string stuff into separate file.

1993-09-02 18:33  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/debug.scm (1.16): Changed a few things so that it will work
	on windows.  Now will only create screen if on a unix system.

1993-09-02 16:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.24): Avoid screen update when the screen has
	not been resized.

1993-09-02 16:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/comman.scm (1.73): Fix bug introduced in last edit.

1993-09-02 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.10): Update for current directories.

1993-09-02 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.64): Eliminate "unused binding" warning.

1993-09-01 23:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/comman.scm (1.72): Make docstring search default to the
	edwin etc directory.

1993-09-01 19:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.31): Fix think-o in last change.

1993-09-01 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.30): Fix think-o in last change.

1993-09-01 18:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.29), runtime.pkg (14.192): Add some new
	functionality to the X graphics interface to allow access to mouse,
	keyboard, and focus events that are used by the interface itself. 
	These events can be used to build useful user interfaces.

1993-09-01 18:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.19): Get rid of unbound variable.

1993-09-01 18:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.27): Teach the runtime system how to
	display the names of utilities and builtins when a trap occurs
	within them.

1993-09-01 18:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.66): Fix typo.

1993-09-01 18:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.65), comutl.c (1.25): Generate the names
	of the builtins automatically.

1993-09-01 18:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.32): Generate the names of the
	builtins automatically.

1993-09-01 16:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.30): Remove fossil.

1993-09-01 16:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosio.c (1.7): No select in DOS.

1993-09-01 15:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntio.c (1.9): Fix minor mispellings.

1993-09-01 15:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.128.1.1): Update to match Unix version.

1993-09-01 14:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.141): - Fix various redisplay/resize
	bugs, and add notification of resize for Edwin.  - Add select
	capabilities to NT version.

1993-09-01 14:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntscreen.h (1.6), ntscreen.c (1.13): Fix various
	bugs, and add notification of resize for Edwin.

1993-09-01 14:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prntio.c (1.1): Initial revision

1993-09-01 14:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntio.c (1.8), ntsig.c (1.8), nttop.c (1.8): Add
	select capability to NT version.

1993-09-01 14:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.7): Add high-priority hot-key polling.

1993-09-01 14:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntenv.c (1.8): Add (disabled) timer code.

1993-09-01 14:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: makefile (1.10), scm-cl3.lst (1.4),
	scm-p-nt.lst (1.4): Add select capabilities for NT.

1993-09-01 14:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.18), microcode/ntutl/bch-cl3.lst (1.4),
	microcode/ntutl/bch-p-nt.lst (1.4): Add select capabilities for NT.

1993-09-01 14:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.128): Add resize capability for consoles.	Add
	ability to dump docstrings.

1993-09-01 14:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.43): Print message reminding user to dump doc
	strings.

1993-09-01 14:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: comman.scm (1.71), modes.scm (1.27): Add ability to dump
	doc strings externally.

1993-09-01 14:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.23): Add resize-screen.

1993-09-01 14:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/termcap.scm (1.5): tn-x-size and tn-y-size are mutable.

1993-09-01 14:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/scrcom.scm (1.4): Add resize-screen command.

1993-09-01 14:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.144): Bind resize-scree to #\m-S

1993-09-01 13:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/ansi.scm (1.5): Add enter/exit from termcap mode for the NT
	emulator.

1993-09-01 01:32  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/option.scm (14.23): Add pc-sample to the options list,
	and make load-option do a temporary cd to the directory where the
	option file comes from, so that subsequent loads, for multiple-file
	options, work correctly.  -- GJR

1993-08-31 23:22  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/option.scm (14.22): Finalized packaging of PC sample load
	option

1993-08-31 20:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: copy.scm (4.4), object.scm (4.7), pardec.scm (4.9),
	reduct.scm (4.8), subst.scm (4.11), toplev.scm (4.12), usiexp.scm
	(4.18), xform.scm (4.6), make.scm (4.27): Extend REPLACE-OPERATOR
	declaration to allow it to work on a combination whose operator is
	a primitive procedure.	In order to do this, it was necessary to
	extend the COMBINATION datatype to include a BLOCK object; this
	change affected quite a few files.

1993-08-31 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.17): Fix pagination.

1993-08-31 14:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/term.c (1.9): If the fixed objects vector is not valid,
	edwin_auto_save should not fail.

1993-08-31 04:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.19): Undo random gratuitous changes.

1993-08-31 04:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/boot.scm (14.9): Undo random gratuitous changes.

1993-08-31 01:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.31): Forgot nullify in
	cross_segment_call.

1993-08-30 20:52  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.18): Fix parenthesis problem, again.

1993-08-30 20:37  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/boot.scm (14.8): Remove Descartes interrupt bits.  They
	are only needed in the PC Sampler.

1993-08-30 20:35  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.17): Remove spurious close paren.

1993-08-30 20:33  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.16): Reserve interrupt slots for the
	Descartes PC sampler, and initialize to the illegal interrupt
	handler.

1993-08-30 20:32  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.191): Export compiled-code-block/filename
	to the global.

1993-08-30 19:01  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/: ed-ffi.scm (1.7), option.scm (14.21): More uniform
	naming to keep related modules together:
	
	coblprof -> pcscobl iproprof -> pcsiproc

1993-08-30 18:40  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/option.scm (14.20): added PC sample option module

1993-08-30 18:16  Jacob Katzenelson <jacob@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.16): (CPH:) Add expansion of expt for small
	exact exponents.

1993-08-30 15:57  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/make.scm (14.48): tweek comments

1993-08-30 15:50  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.6): copyrighted and added pc sample hooks

1993-08-30 15:41  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* runtime/boot.scm (14.7): added hooks for dynamically loadable
	(option) PC sample code

1993-08-30 12:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/scheme.h (9.36): Add macro to protect against multiple
	inclusion.

1993-08-29 15:54  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* microcode/prosenv.c (1.11): changed comments in
	profile-timer-set/clear: did say ``PC sample'' but should have said
	just ``profile'' since PC sampling is not the only use of this
	timer.	My mistake.  ziggy

1993-08-28 20:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.12): Fix redisplay bugs.

1993-08-28 19:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* cref/triv.ldr (1.2): Eliminate redundancies, and use single-file
	load.

1993-08-28 19:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.h (1.2): Fix date.

1993-08-28 19:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.h (1.1): Initial revision

1993-08-28 18:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxtrap.c (1.23), dosenv.c (1.6), fixobj.h (9.34),
	intrpt.h (1.14), ntenv.c (1.7), osenv.h (1.5), prosenv.c (1.10),
	uxenv.c (1.12), uxsig.c (1.27), uxtrap.h (1.21), version.h
	(11.140): Add hooks for Ziggy's pc-sample profiler.

1993-08-28 17:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.70): Add pc-sample profiler slots to the
	fixed-objects vector.

1993-08-28 16:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.66): Add missing parameter to non-ANSI
	param list.

1993-08-28 01:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: primutl.c (9.65), usrdef.h (9.41), syscall.h (1.3),
	utabmd.scm (9.69), version.h (11.139): Add primitive dynamic
	loading ability to the microcode.

1993-08-28 01:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxdld.c (1.1): Initial revision

1993-08-27 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.22): Improve syntax error checking for
	ACCESS.

1993-08-27 01:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntscreen.h (1.5), ntscreen.c (1.11): - Fix ANSI
	emulator to handle commands accross buffer boundaries.	- Fix
	redisplay bug in <ESC>[C - Add background color customization.

1993-08-26 14:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules2.scm (1.7): Add missing rule.

1993-08-26 14:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/folcon.scm (4.8): fold-combinations can fail when
	it invokes apply.  Add a restart to skip that combination and
	continue with the rest.

1993-08-26 02:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: vax/compiler.pkg (1.18), alpha/compiler.pkg
	(1.8): Add export of *block-associations*.

1993-08-26 02:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.pkg (1.44),
	mips/compiler.pkg (1.16), bobcat/compiler.pkg (1.46),
	C/compiler.pkg (1.3): Add export of *block-associations*.

1993-08-26 01:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/asstop.scm (1.6): Sort variables in fluid-let.

1993-08-26 01:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/asstop.scm (1.5): - Move interrupt test on
	continuation invocation to return point (from	continuation entry
	point).
	
	- Share return sequences in a single compiled code block.
	
	- Share closure interrupt code.

1993-08-26 01:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/i386/rules3.scm (1.27),
	machines/i386/compiler.pkg (1.18), back/lapgn1.scm (4.15): - Move
	interrupt test on continuation invocation to return point (from  
	continuation entry point).
	
	- Share return sequences in a single compiled code block.
	
	- Share closure interrupt code.

1993-08-26 01:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.24): Add hook for
	interrupt-continuation-2.

1993-08-26 01:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/i386.m4 (1.32), cmpintmd/i386.h (1.24),
	cmpint.c (1.64): Add hook for interrupt-continuation-2.

1993-08-25 11:14  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/debug.scm (1.15): Made a change so that it still highlights
	the error message.  Now the text prop it seems to want is
	'((highlighted . #t)) not just '((highlighted))

1993-08-25 01:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.8): Add error checks to various exported
	procedures, since mistakes in these arguments cause obscure bugs
	and because the procedures can afford the time.  Also abstract a
	few common patterns.

1993-08-25 01:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwfs.scm (1.17): INTERVAL-PROPERTY now takes three
	arguments instead of two.

1993-08-24 22:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.105): Fix "N" interactive argument letter so
	that it converts the command argument to a numeric value.

1993-08-24 19:27  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* microcode/interp.c (9.77): Merge in change to delay setting of
	Env register until environment is completely constructed.

1993-08-24 14:23  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* microcode/uxyp.c (1.2): [no log message]

1993-08-24 14:16  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* microcode/: uxyp.c (1.1), uxyp.h (1.1): Initial revision

1993-08-24 13:25  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.31): rmail-summary-buffer was unassigned
	initially.

1993-08-24 12:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.10): Separate DELETE key now returns ^D

1993-08-24 02:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.9): - Fix C-M under Win 3.1.	- Make
	interrupts flush typeahead correctly.

1993-08-24 02:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autosv.scm (1.28): Add code to update an alist in the
	fixed-objects vector.  This alist is used by the microcode's
	"auto-save on exit" feature.

1993-08-24 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/term.c (1.8): Implement an "auto-save on exit" feature.
	 This assumes that Edwin keeps the fixed-objects-vector slot
	FIXOBJ_EDWIN_AUTO_SAVE up to date with an alist of group/filename
	pairs.	The auto-save feature determines which entries in the alist
	need to be saved and writes them out to auto-save files.  The
	activity is echoed on the error stream.

1993-08-24 02:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.84): Add fixed-objects slot to contain Edwin
	data structure describing files that might need to be saved. 
	Initialize this slot to '().

1993-08-24 00:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/scheme16.c (1.4): Restore some debugging aids.

1993-08-24 00:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/scheme16.def (1.3): Fix 16-bit .def file after
	figuring out what some of the options mean.

1993-08-24 00:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/scheme31.c (1.3): Insert additional call to
	VirtualFree, using MEM_RELEASE, to make Win 3.1 happy.

1993-08-23 20:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gccode.h (9.51): Work-around HP-C optimizer bug.

1993-08-23 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.68): Add fixed-objects slot to contain
	Edwin data structure describing files that might need to be saved. 
	Initialize this slot to '().

1993-08-23 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/edwin.h (1.7): Add definition for GROUP-MODIFIED?
	accessor since that is needed to do auto-save from microcode.

1993-08-23 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fixobj.h (9.33): Add fixed-objects slot to contain
	Edwin data structure describing files that might need to be saved. 
	Initialize this slot to '().

1993-08-23 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.7): Fix bug in INTERVAL-PROPERTIES-EQUAL?. 
	Consider two properties equal if they are EQ?.

1993-08-23 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.6): Fix bug in implementation of READ-ONLY
	text property.

1993-08-23 00:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utils.c (9.63): Change feature macro from I386 to i386.
	 I386 is undefined.  Add WINNT try/finally block.

1993-08-23 00:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.31): Move manipulation of C's es to
	interface_initialize.  It does not change for the duration of the
	session.

1993-08-22 22:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/i386.h (1.23), bchdmp.c (9.71), bchgcc.h
	(9.54), bchgcl.c (9.46), bchpur.c (9.61): Make bchscheme work with
	address relocation.

1993-08-22 21:51  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/debug.scm (1.14): Made minor revision so that it accepts #f
	as an environment.

1993-08-22 21:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.9): Add bchscheme back to list of
	generated programs.

1993-08-22 18:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.79), bchpur.c (9.60), gccode.h (9.50),
	memmag.c (9.54), purify.c (9.51), purutl.c (9.45), version.h
	(11.138): Merge in microcode gc hook support for Ziggy's profiler.

1993-08-22 18:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.53): NT requires O_BINARY in the file
	flags.

1993-08-22 16:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.24): Dos-specific libraries are also defined
	under NT so that bands can be shared.

1993-08-22 16:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.71), cmpint.c (1.63), comutl.c (1.24),
	version.h (11.137): - Add definition of
	declare-compiled-code-block, used by the compiler   and the program
	copier to guarantee that the caches have been	synchronized.  -
	Modify fasload to synchronize the caches when necessary.  -
	Eliminate compiled-expression cache-flushing kludge since it is no 
	 longer necessary because of the other modifications.

1993-08-22 16:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/prgcop.scm (1.4), compiler/base/asstop.scm (1.4): Add
	calls to declare-compiled-code-block to guarantee that the caches
	have been synchronized for newly-created code.

1993-08-22 13:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.22): Merge in personal changes.

1993-08-22 13:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.127.1.1): DOS version.

1993-08-22 13:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.127): Add new imports to (edwin debugger) for
	improvements to Arthur's debugger.

1993-08-22 00:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.126.1.1): DOS/NT version.

1993-08-22 00:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.126), edwin.ldr (1.42): Merge in changes for
	NT.

1993-08-22 00:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: comint.scm (1.20), comhst.scm (1.2): Move
	comint-record-input from comint.scm to comhst.scm.  comint.scm is
	not loaded in the DOS/Windows version.

1993-08-21 01:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/scheme16.c (1.3): Forgot to remove switch entries
	in last edit.

1993-08-21 01:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntasutl.asm (1.4): Lost "end" during the last edit.

1993-08-21 00:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.30): - Handle address relocation to
	allow the NT version of Scheme to run	under Windows 3.1.  -
	Cleanup of the NT sources.  Remove DOS fossils.

1993-08-21 00:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/makefile (1.2): Reorder to make "make all"
	work correctly.

1993-08-21 00:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.136): - Handle address relocation to
	allow the NT version of Scheme to run	under Windows 3.1.  -
	Cleanup of the NT sources.  Remove DOS fossils.

1993-08-21 00:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: win31.bat (1.1), winnt.bat (1.1): Initial
	revision

1993-08-21 00:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: purify.c (9.50), ntutl/scm-cl3.lst (1.3),
	ntutl/scm-p-nt.lst (1.3): - Handle address relocation to allow the
	NT version of Scheme to run   under Windows 3.1.  - Cleanup of the
	NT sources.  Remove DOS fossils.

1993-08-20 23:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntutl/scheme32.c (1.3), object.h (9.42), prntenv.c
	(1.3), prntfs.c (1.2): - Handle address relocation to allow the NT
	version of Scheme to run   under Windows 3.1.  - Cleanup of the NT
	sources.  Remove DOS fossils.

1993-08-20 23:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: scheme16.mak (1.2), scheme16.mak (1.3),
	scheme31.c (1.2): - Handle address relocation to allow the NT
	version of Scheme to run   under Windows 3.1.  - Cleanup of the NT
	sources.  Remove DOS fossils.

1993-08-20 23:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: nttrap.h (1.4), nttty.c (1.4), ntutl/scheme16.c
	(1.2), ntutl/scheme16.def (1.2): - Handle address relocation to
	allow the NT version of Scheme to run	under Windows 3.1.  -
	Cleanup of the NT sources.  Remove DOS fossils.

1993-08-20 23:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntsig.c (1.7), ntsys.c (1.3), ntsys.h (1.3), nttop.c
	(1.7), nttrap.c (1.5): - Handle address relocation to allow the NT
	version of Scheme to run   under Windows 3.1.  - Cleanup of the NT
	sources.  Remove DOS fossils.

1993-08-20 23:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntutl/scheme31.def (1.2), ntutl/scheme32.def (1.2),
	ntscmlib.h (1.2): - Handle address relocation to allow the NT
	version of Scheme to run   under Windows 3.1.  - Cleanup of the NT
	sources.  Remove DOS fossils.

1993-08-20 23:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntgui.c (1.6), ntutl/ntgui.rc (1.3), ntio.c (1.7),
	ntio.h (1.5): - Handle address relocation to allow the NT version
	of Scheme to run   under Windows 3.1.  - Cleanup of the NT sources.
	 Remove DOS fossils.

1993-08-20 23:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntenv.c (1.6), ntfs.c (1.6): - Handle address
	relocation to allow the NT version of Scheme to run   under Windows
	3.1.  - Cleanup of the NT sources.  Remove DOS fossils.

1993-08-20 23:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: makefile (1.8), config.bat (1.5): Move some
	files to ntutl.

1993-08-20 22:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: ntdialog.dlg (1.1), ntdialog.h (1.1): Initial
	revision

1993-08-20 22:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntasutl.asm (1.3): Allow for address relocation to make
	Scheme run under Windows 3.1.  Plus general cleanup of NT code.

1993-08-20 22:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/nt.h (1.5): Allow for address relocation to make Scheme
	run under Windows 3.1.	Plus general cleanup of NT code.

1993-08-20 22:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntutl/config.bat (1.4), memmag.h (1.2): Allow for
	address relocation to make Scheme run under Windows 3.1.

1993-08-20 22:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: intrpt.h (1.13), ntutl/makefile (1.7): Allow for
	address relocation to make Scheme run under Windows 3.1.

1993-08-20 22:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: gccode.h (9.49), gcloop.c (9.42): Allow for address
	relocation to make Scheme run under Windows 3.1.

1993-08-20 21:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.49): Add a cast to output to remove
	warnings from the Microsoft Windows NT compiler.

1993-08-20 21:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: config.h (9.81), fasdump.c (9.56), fasload.c (9.70):
	Allow for address relocation to make Scheme run under Windows 3.1.

1993-08-20 21:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.62), cmpintmd/i386.h (1.22): Allow for
	address relocation to make Scheme run under Windows 3.1.

1993-08-20 21:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.83): Add enter-interpreter hook to make
	exception handling work under Windows NT.

1993-08-20 21:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: bch-cl3.lst (1.3), bch-p-nt.lst (1.3): Flush
	ntconio.obj, not needed.

1993-08-20 15:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.29): Disable undo in RMAIL buffers, since it
	shouldn't be needed.  The storage needed for the undo has caused
	problems for at least one user.  Undo is enabled for buffers in
	rmail-edit mode.

1993-08-20 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.32): Supply missing noun in error message for
	allocation-failure.

1993-08-19 20:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.44): Fixed two bugs: (1) the HALT-UPDATE and
	PEEK-NO-HANG operations were not generating input events to cause
	redisplay when subprocess or inferior REPL output required them;
	(2) there was an interrupt window between the test for such output
	and entry into a blocking read.  The former now generate the
	appropriate events, and the latter has been eliminated.

1993-08-19 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/input.scm (1.98): Interaction between HANDLE-SIMPLE-EVENTS
	and KEYBOARD-READ-1 had a window in which it was possible to
	process an event that caused a redisplay to be needed, but
	subsequently avoid the redisplay test and go directly into a
	blocking read.	This window has been eliminated.

1993-08-19 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: kmacro.scm (1.40), comred.scm (1.104): Fix pagination.

1993-08-19 18:19  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/prntenv.c (1.2): fixed FILE-TIME->STRING to check for a
	null string returned from ctime().  This happens with the SDK C
	runtime library when the time is -1.  The returned string is empty.

1993-08-19 01:56  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/kmacro.scm (1.39): Rewrote the loop in
	KEYBOARD-MACRO-EXECUTE so that CALL-WITH-CURRENT-CONTINUATION would
	get called just once per keyboard macro.  I also made the call to
	COMMAND-READER supply an optional arguement (#f) that wasn't being
	supplied before.

1993-08-19 01:52  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/comred.scm (1.103): Made the command reader loop aware of
	keyboard-macros so that a call to without-editor-interupts could be
	avoided thus speeding up the code.

1993-08-18 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/input.scm (1.97): Fix bug introduced by last change: when
	an input-event is processed by a "peek" routine, it must be
	discarded, otherwise the reader gets stuck in a loop processing the
	same event over and over.

1993-08-18 19:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.301): Fix instance of "point not visible at
	end of redisplay" error that Matt Birkholz pointed out.  Change
	code that generates this error to conditionally force the point to
	be visible; this results in more robust behavior.

1993-08-18 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.36): Guarantee that CHANNEL-READ not return #f
	if the argument channel is set to blocking mode.

1993-08-17 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.13): Eliminate random delay, which should no
	longer be needed now that window initialization sequence is fixed.

1993-08-17 17:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xterm.scm (1.43), make.scm (3.79): These changes require
	microcode version 11.135 or later.
	
	Change the startup sequence for X windows.  It turns out that there
	is a poorly documented constraint which says that the client may
	not draw on a newly-created window until the first Expose event for
	the window is received.  These changes implement this constraint
	(see the source code comments for details).  Additionally, the
	startup sequence now guarantees that the event mask and Edwin's
	data structures are properly initialized before the window is
	mapped, guaranteeing that by the time the first event arrives,
	everything is ready for it.

1993-08-17 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11base.c (1.51), version.h (11.135): These changes
	are required for Edwin version 3.79.  Older versions of Edwin will
	still work with this microcode.
	
	* Change "map" argument to window creation primitives so that it
	can   specify the resource names _and_ not to map the window. 
	Previously   specifying the resource names forced mapping.
	
	* Change the X-DEBUG primitive to accept non-negative fixnums to
	allow	the amount of debugging information to be set.	#f and #t
	are still   accepted, meaning the same as 0 and 1, respectively.
	
	* Extend "expose" objects with another element that identifies each
	  one as either an Expose event or a GraphicsExpose event.
	
	* Implement new primitive X-WINDOW-FLUSH.

1993-08-16 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.9): Change WRITE-DEFINITION-VALUE to return
	the description of the definition as a string rather than writing
	it to the REPL port.

1993-08-16 15:00  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/debug.scm (1.12): Tweaked a typo.

1993-08-16 05:50  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* runtime/ttyio.scm (1.3): Added hooks so that the new emacs
	debugger that I'm writing can load in after the console ports have
	already been made.

1993-08-16 04:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.23): When reconfiguring a window, clear
	it.  This prevents garbage from being left in the internal border
	of the window.

1993-08-16 04:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.42): Change handling of "configure" events so
	that the microcode and Edwin update their notions of the window's
	size at the same time.	Previously, the microcode was updated
	first, then Edwin was updated later.  It was possible for Edwin to
	write to the screen in the interval, with arguments based on its
	(obsolete) notion of the window's size.

1993-08-16 04:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.109): Don't delete a screen if it's already
	deleted.

1993-08-16 04:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.103): Initialize cursor X and Y of a screen
	matrix to 0, not #F.

1993-08-15 18:03  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/debug.scm (1.11): Made changes to help.

1993-08-13 23:31  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/debug.scm (1.10): Made minor change to select-bline

1993-08-13 22:47  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/struct.scm (1.89): Made groups start out writable? again.

1993-08-13 19:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: struct.scm (1.88), regexp.scm (1.64): Add %HASH-NUMBER
	field to group data structure.	This is used to cache the
	OBJECT-HASH of the group to speed up regular expression searching.

1993-08-13 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: struct.scm (1.87), buffer.scm (1.163), rmail.scm (1.28),
	txtprp.scm (1.5), grpops.scm (1.21), regops.scm (1.86), fileio.scm
	(1.119): Alter WITH-READ-ONLY-DEFEATED so that it defeats read-only
	intervals within the group.  Additionally, eliminate several
	instances of GROUP-INDEX: variables to make later transition away
	from DEFINE-NAMED-STRUCTURE easier.

1993-08-13 07:17  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.4): I can't believe i wrote this shitty code
	in the first place but i blew it in delete-interval.

1993-08-12 21:56  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/debug.scm (1.9): Fix fencepost error in highlighting of
	subexpressions.

1993-08-12 21:35  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/screen.scm (1.102): Fix highlighting bug in
	SCREEN-GET-OUTPUT-LINE.

1993-08-12 21:22  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/debug.scm (1.8): Changed continuation->blines and
	system-frame? to work if the flag debugger-hide-system-code? is set
	false.

1993-08-12 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.7): Use new procedure
	STACK-FRAME/REPL-EVAL-BOUNDARY? to detect standard REPL evaluation
	boundary frames.  This replaces crufty mechanism that was
	previously in use here.

1993-08-12 20:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.8): Use new procedure REPL-SCODE-EVAL to do a
	standard evaluation of the SCode within HOOK/REPL-EVAL.

1993-08-12 20:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.190), rep.scm (14.35): Implement
	REPL-SCODE-EVAL to capture the common idiom of evaluating some
	SCode from a REPL.

1993-08-12 20:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.26), debug.scm (14.35), rep.scm (14.34),
	runtime.pkg (14.189): Implement WITH-REPL-EVAL-BOUNDARY and
	STACK-FRAME/REPL-EVAL-BOUNDARY? to mark the boundary between stack
	frames that are part of the REPL and those that are part of the
	expression being evaluated by the REPL.  This marker frame is a
	"subproblem" frame because that is the easiest way to make it
	visible to the debuggers, but operationally it is a "reduction"
	frame.
	
	The runtime system's debugger currently ignores these marker
	frames; at some point it should be modified to do something with
	them.

1993-08-12 05:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.6): Change HOOK/REPL-EVAL to accept the
	calling REPL as its first argument, in addition to the other
	arguments.

1993-08-12 04:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.43): Change HOOK/REPL-EVAL to accept the
	calling REPL as its first argument, in addition to the other
	arguments.

1993-08-12 04:34  Joe Bank <jbank@zurich.ai.mit.edu>

	* edwin/: debug.scm (1.5), edwin.pkg (1.125): New version of the
	edwin debugger added.

1993-08-12 04:33  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.41): Changed the order of loading xcom so that
	joe's debugger would be happy.

1993-08-12 04:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.7): Use new operation,
	CURRENT-EXPRESSION-CONTEXT, to find out where the expression being
	rewritten came from.  Use this contextual information to restrict
	the generation of definition messages so that they only occur for
	expressions evaluated directly in the repl buffer.

1993-08-12 04:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.63): Add a new operation on the interface
	port, CURRENT-EXPRESSION-CONTEXT, that returns a context
	description associated with the expression most recently read from
	the port.  The context description is a symbol which says where the
	expression came from.  This information will be used by the 6.001
	code to make the generation of special definition messages
	sensitive to the context.

1993-08-12 04:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.33), usrint.scm (1.4), load.scm (14.43):
	Change HOOK/REPL-EVAL to accept the calling REPL as its first
	argument, in addition to the other arguments.

1993-08-12 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.62): Change handling of command prompts so
	that only the standard prompts are ignored; other prompts are
	printed.  The standard prompts can also be printed by changing the
	value of a flag.  The set of standard prompts is defined by a list
	which can be augmented.  These changes make the prompt argument of
	PROMPT-FOR-COMMAND-EXPRESSION useful.

1993-08-12 03:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.21): It's OK to print compound procedure names.

1993-08-12 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/arith.scm (1.4): Change / operation to return exact quotient
	of two exact integers if the numerator is a multiple of the
	denominator.

1993-08-12 02:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufout.scm (1.9): Add operation to get the mark from a
	buffer output port.

1993-08-12 02:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.28): Extend highlighting mechanism so that
	Edwin can take advantage of it.

1993-08-12 01:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.46): Fix the
	register*constant fixnum-multiply rule to match the change to the
	corresponding rewrite rules.

1993-08-11 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: vax/compiler.pkg (1.17),
	spectrum/compiler.pkg (1.43), bobcat/compiler.pkg (1.45),
	mips/compiler.pkg (1.15), C/compiler.pkg (1.2), alpha/compiler.pkg
	(1.7), i386/compiler.pkg (1.17): Add
	compiler:COALESCING-CONSTANT-WARNINGS? to list of switches exported
	to the global environment.

1993-08-11 16:28  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.8): Hacked in temporary arrow keys and
	Home (^A) and End (^E) keys.

1993-08-11 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.cbf (1.6), cref/cref.cbf (1.2), sf/sf.cbf (1.2),
	runtime/runtime.cbf (1.2): Don't show warnings about constant
	coalescing.

1993-08-11 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.cbf (1.3): Don't show warnings about constant
	coalescing.

1993-08-11 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/term.c (1.7): Supply missing argument to outf_fatal in
	TERM_SIGNAL handler.  Make termination message for TERM_HALT appear
	on stdout, since it is not error information.

1993-08-10 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.20): Conditionalize calls to text-property
	operations on an open-coded test for the existence of properties in
	the group being modified.

1993-08-10 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufset.scm (1.11), comman.scm (1.70), buffer.scm (1.162):
	Eliminate instances of DEFINE-NAMED-STRUCTURE.

1993-08-10 12:17  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/utils.c (9.62): Paramterized stack saving in
	C_call_scheme for I386

1993-08-10 05:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.3): Implement INTERVAL-PROPERTIES-EQUAL?.

1993-08-10 05:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.51): Eliminate spurious compiler warning.

1993-08-10 03:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/techinfo.scm (1.4): Fix pagination.

1993-08-10 03:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sercom.scm (1.62), strtab.scm (1.44): Fix pagination.

1993-08-10 02:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/outline.scm (1.7): Fix pagination.

1993-08-10 02:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/notify.scm (1.11): Fix pagination.

1993-08-10 02:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: macros.scm (1.60), modlin.scm (1.16), motcom.scm (1.46):
	Fix pagination.

1993-08-10 02:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.116), iserch.scm (1.19), loadef.scm (1.23):
	Fix pagination.

1993-08-10 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dosshell.scm (1.3), edtstr.scm (1.22), filcom.scm
	(1.175), fileio.scm (1.118): Fix pagination.

1993-08-10 02:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.102), comtab.scm (1.63), ed-ffi.scm (1.31),
	edtfrm.scm (1.87), edwin.ldr (1.40), edwin.pkg (1.124), fill.scm
	(1.59), hlpcom.scm (1.106), txtprp.scm (1.2): Define mechanism to
	find and execute commands from point-local comtabs when they exist,
	and modify various places to use it instead of COMTAB-ENTRY.
	
	Fix installation of text properties: "edwin.pkg" not propertly
	modified.
	
	Change name of package for text properties.

1993-08-10 01:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/c-mode.scm (1.52): Fix pagination.

1993-08-10 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.48), bufmnu.scm (1.125): Fix pagination.

1993-08-10 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.130): Fix pagination.

1993-08-10 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.35): Remove random ^Z.

1993-08-09 15:42  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/bufwfs.scm (1.16): Made changes to draw-region! so that one
	could have highlighted regions.

1993-08-09 15:38  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/comred.scm (1.101): Made the command reader check for a
	command-table in the text before using the default command table.

1993-08-09 15:34  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/: ed-ffi.scm (1.30), decls.scm (1.47): Added the file
	txtprp.scm.

1993-08-09 15:22  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/edtfrm.scm (1.86): Changed the button event handler so that
	it would search for a command table in the text before calling the
	ordinary routine.

1993-08-09 15:20  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.39): Added the file txtprp.scm.

1993-08-09 15:19  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.19): Changed insert and delete to check the
	text-property field for READ-ONLY regions by calling:
	text-not-insertable? and text-not-deleteable?

1993-08-09 15:15  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/struct.scm (1.86): Added a text-property field to the group
	data structures.  Legal values for this field are false or an
	interval tree.

1993-08-09 15:12  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/txtprp.scm (1.1): Initial revision

1993-08-09 15:11  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/undo.scm (1.55): Changes to undo so that text property
	changes could be undone using undo.

1993-08-06 20:17  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/: conses.ico (1.1), edwin.ico (1.1), envir1.ico
	(1.1), graphics.ico (1.1), lambda.ico (1.1), lambda2.ico (1.1),
	liar1.ico (1.1), liar2.ico (1.1), liar3.ico (1.1), shield1.ico
	(1.1), shield2.ico (1.1), shield3.ico (1.1), shield4.ico (1.1):
	Initial revision

1993-08-06 20:15  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/utils.c (9.61): Fix for re-entrant foreign function:
	saves C stack & frame pointers

1993-08-06 20:13  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/option.c (1.34): Adjustment of default constant size
	under NT

1993-08-06 20:12  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntgui.c (1.5): Added: support for relinking DLLs

1993-08-06 20:11  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntutl/ntgui.rc (1.2): Added a plethora of groovy icons

1993-08-06 20:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.7): Changed default icon

1993-08-06 01:44  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.12): Make
	multiply-fixnum do inline case more often.  Previously we were
	being screwed by the CSE.

1993-08-05 04:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.61): Inferior thread should not return from
	WAIT-FOR-INPUT until the desired input is really available.

1993-08-04 18:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/primutl.c (9.64): The utility procedure `strcmp_ci' had
	a built-in assumption that the input strings contained no uppercase
	letters.  This is not the case.  The procedure `toupper' is
	guaranteed to work on all characters iff the implementation is ANSI
	compliant.  The procedure `_toupper' (ant `toupper' in non-ANSI
	implementations) is guaranteed to work _only_ on lowercase letters.

1993-08-04 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.60): Don't write a message when the working
	directory of the inferior REPL is changed; this now happens at odd
	times and the messages are at best distracting.

1993-08-03 18:40  Jacob Katzenelson <jacob@zurich.ai.mit.edu>

	* sf/pardec.scm (4.8): Upgrade dumpable expanders to satisfy new
	arity.

1993-08-03 18:40  Jacob Katzenelson <jacob@zurich.ai.mit.edu>

	* sf/reduct.scm (4.7): Clean up last change -- GJR.

1993-08-03 18:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/scheme32.c (1.2): Fix problem when shutting down
	before having set up the timer.

1993-08-03 18:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.63): - Add prototypes for C library
	procedures.  - Primitive aliasing no longer requires the base
	primitive to be   present.  When incorporating an alias to an
	inexistent primitive,	the inexistent primitive is declared first.

1993-08-03 18:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/memmag.c (9.53): Remove WINNT fossil.

1993-08-03 17:53  Jacob Katzenelson <jacob@zurich.ai.mit.edu>

	* sf/reduct.scm (4.6): Fix the same bug in replace-operator that
	was just fixed in reduce-operator.  -- GJR

1993-08-03 16:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/reduct.scm (4.5): Forgot to upgrate to match new data
	structures.

1993-08-03 13:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/syscall.h (1.2): Forgot comment characters after
	#endif.

1993-08-03 13:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.62): Add casts to remove warnings by HP
	cc.

1993-08-03 05:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/errors.h (9.40): Fix a problem introduced when checking
	the file in.

1993-08-03 04:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/syscall.h (1.1): Initial revision

1993-08-03 04:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.6): Change the primitive tables to
	allow for dynamic declaration of primitives.

1993-08-03 04:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/hppa.m4 (1.30), cmpintmd/hppa.h (1.44),
	bchmmg.c (9.78), boot.c (9.82), cmpint.c (1.61), debug.c (9.45),
	dostop.c (1.7), errors.h (9.39), extern.c (9.34), fasload.c (9.69),
	findprim.c (9.48), interp.h (9.38), memmag.c (9.52), msdos.h (1.6),
	nt.h (1.4), nttop.c (1.6), object.h (9.41), prename.h (1.8), prim.h
	(9.44), prims.h (9.43), primutl.c (9.61), usrdef.h (9.40), utils.c
	(9.60), ux.h (1.50), uxtop.c (1.11), version.h (11.134): Change the
	primitive tables to allow for dynamic declaration of primitives.

1993-08-02 23:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/parse.scm (14.21): Remove warning from sf.

1993-08-02 23:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: cgen.scm (4.2), copy.scm (4.3), object.scm (4.6), sf.pkg
	(4.9), subst.scm (4.10), usicon.scm (4.3), usiexp.scm (4.15),
	xform.scm (4.5): Add a mechanism for mapping input scode objects to
	output scode objects.  The original scode objects are passed
	through to the output, and the *sf-associate* hook is called on the
	output scode and the original scode.  The default *sf-associate*
	does nothing.

1993-08-02 22:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/toplev.scm (4.11): Add a mechanism for mapping input scode
	objects to output scode objects.  The original scode objects are
	passed through to the output, and the *sf-associate* hook is called
	on the output scode and the original scode.  The default
	*sf-associate* does nothing.

1993-08-02 19:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.100), debug.scm (1.4), editor.scm (1.229),
	edwin.pkg (1.123), evlcom.scm (1.42): Condition handlers can not
	invoke ABORT-CURRENT-COMMAND because the handler for that condition
	might have been bound inside of the binding for the condition being
	handled, and thus be unavailable at that time.	This is fixed by
	introducing a restart, ABORT-EDITOR-COMMAND, and an associated
	procedure, RETURN-TO-COMMAND-LOOP.  Condition handlers should
	invoke this restart rather than signalling the
	ABORT-CURRENT-COMMAND condition.

1993-08-02 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.159), unix.scm (1.37): Change
	ABORT-CURRENT-COMMAND to EDITOR-ERROR.

1993-08-02 17:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/parse.scm (14.20): Add a mechanism for mapping objects to
	the character positions in the input port at which they started.

1993-08-02 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.22), rmailsum.scm (1.30):
	RMAIL-SUMMARY-BUFFER must be bound in order for RMAIL-CEASE-EDIT to
	work correctly.

1993-08-02 00:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.22): * Change handling of ^G interrupts and of
	ABORT-CURRENT-COMMAND.	Both   now use the condition system; ^G
	conditions are a specialization of   ABORT-CURRENT-COMMAND
	conditions.  This change makes it easy to bind	 some action to
	occur when a command is aborted for whatever reason.   
	Consequently, the procedure INTERCEPT-^G-INTERRUPTS has been   
	deleted.
	
	* The inferior thread output mechanism has been modified to allow a
	  thread to request that the editor exit the keyboard reader and  
	return to the command reader.  The request is phrased by the thread
	  output procedure returning 'FORCE-RETURN.  This new mechanism is 
	 used by the inferior REPL code to force the command reader to	
	immediately execute a command override for an unsolicited prompt.
	
	* Aborting an unsolicited prompt causes the associated inferior
	thread	 to execute ABORT->NEAREST.
	
	* Inferior REPL buffers now initialize their working directory to
	the   default directory of the selected buffer at the time the REPL
	buffer	 is created.
	
	* Inferior REPL buffers now have their own bindings of %EXIT and
	QUIT   that affect only the inferior thread.  In particular, %EXIT
	kills	the inferior thread but leaves Scheme running; QUIT does
	nothing.

1993-08-01 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.99), editor.scm (1.228), edwin.pkg (1.122),
	intmod.scm (1.59), iserch.scm (1.18), process.scm (1.30),
	prompt.scm (1.158), xterm.scm (1.41): * Change handling of ^G
	interrupts and of ABORT-CURRENT-COMMAND.  Both	 now use the
	condition system; ^G conditions are a specialization of  
	ABORT-CURRENT-COMMAND conditions.  This change makes it easy to
	bind   some action to occur when a command is aborted for whatever
	reason.    Consequently, the procedure INTERCEPT-^G-INTERRUPTS has
	been	deleted.
	
	* The inferior thread output mechanism has been modified to allow a
	  thread to request that the editor exit the keyboard reader and  
	return to the command reader.  The request is phrased by the thread
	  output procedure returning 'FORCE-RETURN.  This new mechanism is 
	 used by the inferior REPL code to force the command reader to	
	immediately execute a command override for an unsolicited prompt.
	
	* Aborting an unsolicited prompt causes the associated inferior
	thread	 to execute ABORT->NEAREST.
	
	* Inferior REPL buffers now initialize their working directory to
	the   default directory of the selected buffer at the time the REPL
	buffer	 is created.
	
	* Inferior REPL buffers now have their own bindings of %EXIT and
	QUIT   that affect only the inferior thread.  In particular, %EXIT
	kills	the inferior thread but leaves Scheme running; QUIT does
	nothing.

1993-08-01 22:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.19): Add new procedure COMINT-RECORD-INPUT
	which is like RING-PUSH! except that it doesn't push the string
	argument if it is the same as the one on the top of the ring.  This
	is usually desirable -- it's not necessary to record more than one
	of a series of identical commands.

1993-08-01 02:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/input.scm (1.96): Change handling of simple events so that
	it does not invoke the main keyboard-reading loop with its
	management of updating and messages.

1993-08-01 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.108): Disallow selection of a deleted screen.
	 Unfortunately this can happen because MWM generates these two
	events in sequence when the "close" window menu entry is selected:
	
	1. WM_DELETE_WINDOW event on the given screen.
	
	2. FocusIn event on the given screen.  Yuck!  Side effect of
	selecting    the menu button on the screen.

1993-08-01 01:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.58): If an inferior REPL generates an
	unsolicited prompt, perform the prompt only when the REPL buffer is
	selected.  If the buffer is not selected, delay the prompt until
	selection occurs.  What is still missing is a notification
	mechanism to alert the user that the inferior REPL needs attention.

1993-08-01 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.107): Add per-buffer selection hooks.

1993-08-01 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: input.scm (1.95), edwin.pkg (1.121): Extend handling of
	simple events to include deletion of non-selected screens.

1993-07-31 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.98), edwin.pkg (1.120), input.scm (1.94),
	prompt.scm (1.157), tterm.scm (1.21), xterm.scm (1.40): Change
	KEYBOARD-READ, KEYBOARD-PEEK, and KEYBOARD-PEEK-NO-HANG to
	intercept "update" and "resize" events and to handle them rather
	than returning them.  Other events with potentially troublesome
	actions are returned as before.  Additionally, several places where
	input events were discarded have been fixed -- input events must
	ALWAYS be handled.

1993-07-30 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.32): Make WORKING-DIRECTORY-PATHNAME and
	*DEFAULT-PATHNAME-DEFAULTS* be different for each CMDL.  Change
	SET-WORKING-DIRECTORY-PATHNAME! so that it only changes the working
	directory of the Scheme process if the CMDL is the initial
	top-level REPL.
	
	The end result of these changes is to make the working directory of
	an Edwin inferior REPL buffer be independent of the global working
	directory.

1993-07-30 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.31), runtime.pkg (14.188), wrkdir.scm
	(14.7): Make WORKING-DIRECTORY-PATHNAME and
	*DEFAULT-PATHNAME-DEFAULTS* be different for each CMDL.  Change
	SET-WORKING-DIRECTORY-PATHNAME! so that it only changes the working
	directory of the Scheme process if the CMDL is the initial
	top-level REPL.
	
	The end result of these changes is to make the working directory of
	an Edwin inferior REPL buffer be independent of the global working
	directory.

1993-07-30 17:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.57): Most uses of CURRENT-REPL-BUFFER should
	not signal an error if there is no such buffer.

1993-07-30 02:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dos.scm (1.11): File-attributes fails (returns #f) on `..'
	in CD file systems.  Accommodate.

1993-07-30 02:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.5): Remove check to verify that the first
	entry of a directory is a subdirectory.  Root directories on FAT
	volumes do not have `.' and `..' entries, so this is not guaranteed
	to be the case.

1993-07-30 02:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.6): Fix line-wrapping.  It dropped
	characters and did not invalidate correctly.

1993-07-29 03:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.60): Trampoline headers have a different
	tag so the profiler can distinguish them from ordinary cc blocks.

1993-07-29 03:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/hppa.h (1.43), cmpauxmd/hppa.m4 (1.29),
	cmpint.c (1.59), comutl.c (1.23), uxtrap.c (1.22), uxtrap.h (1.20):
	Generalize hook/builtin information for use by trap recovery and PC
	sampling.

1993-07-28 20:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/ansi.scm (1.4): Add a larger set of capabilities, supported
	by the ANSI emulator built into the Scheme microcode under Windows
	NT.

1993-07-28 16:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.c (1.5): Improve Edwin redisplay speed by
	avoiding repeated calls to InvalidateRect when painting, and by
	adding insert/delete line capabilities.

1993-07-28 16:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntio.c (1.6): Eliminate spurious 0-length write
	messages.

1993-07-27 23:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.47), runtime.pkg (14.187): New procedure
	COMPILED-CODE-BLOCK/FILENAME.

1993-07-27 17:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: nttrap.c (1.4), ntenv.c (1.5): NT changes:
	
	- Abstract functionality not available in Win32s so it can be
	provided in a DLL.
	
	- Remove some fossil DOS code from ntsig.c.
	
	- ntscreen.c can now emulate an ansi.sys terminal.

1993-07-27 17:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: bch-cl3.lst (1.2), bch-p-nt.lst (1.2), makefile
	(1.5), scm-cl3.lst (1.2), scm-p-nt.lst (1.2): NT changes:
	
	- Abstract functionality not available in Win32s so it can be
	provided in a DLL.
	
	- Remove some fossil DOS code from ntsig.c.
	
	- ntscreen.c can now emulate an ansi.sys terminal.

1993-07-27 17:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.77), cmpint.c (1.58), memmag.c (9.51),
	ntio.c (1.5), ntscreen.c (1.4), ntsig.c (1.6), nttop.c (1.5): NT
	changes:
	
	- Abstract functionality not available in Win32s so it can be
	provided in a DLL.
	
	- Remove some fossil DOS code from ntsig.c.
	
	- ntscreen.c can now emulate an ansi.sys terminal.

1993-07-27 16:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntutl/scheme31.c (1.1), ntutl/scheme16.c (1.1),
	ntutl/scheme16.mak (1.1), ntutl/scheme16.def (1.1), ntscmlib.h
	(1.1), ntutl/scheme32.c (1.1), ntutl/scheme31.def (1.1),
	ntutl/scheme32.def (1.1), memmag.h (1.1): Initial revision

1993-07-27 13:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.28): Fix bug.  The val register was
	not preserved around flonum calls.
	
	(flo:+ (flo:sin x) (flo:expt x y))
	
	was failing because the result of flo:expt (close-coded) was left
	in val around the call to sin, and the stub (and C code,
	potentially) were clobbering it.

1993-07-26 20:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.17), runtime.pkg (14.186): Add new
	procedure ALLOW-THREAD-EVENT-DELIVERY.

1993-07-26 20:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.25): Don't allocate a new result vector to
	pass to SELECT-REGISTRY-TEST each time that it is called.  Instead,
	maintain a pool of these vectors and pick one from the pool if it's
	available.

1993-07-23 15:43  Nick Papadakis <nick@zurich.ai.mit.edu>

	* microcode/prims.h (9.42): Added FLOATING_VECTOR_ARG to support
	vectors of double floats

1993-07-22 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.119): Change corresponding to most recent
	change to "tterm.scm".

1993-07-22 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirunx.scm (1.3): "gzip" now uses ".gz" suffix instead of
	".z"; make corresponding changes to Edwin.

1993-07-22 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.36): "gzip" now uses ".gz" suffix instead of
	".z"; make corresponding changes to Edwin.

1993-07-21 02:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntfs.c (1.4): Fix wrong syscall name.

1993-07-21 00:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntgui.c (1.4), ntio.c (1.4), ntscreen.c (1.3),
	ntscreen.h (1.4), ntsig.c (1.5): Changes to make terminal-based
	Edwin work.

1993-07-20 20:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.4): Use GUI interface, and not
	console interface.

1993-07-19 20:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: machin.scm (1.13), rules1.scm (1.6),
	rules3.scm (1.17), rulflo.scm (1.7), rulrew.scm (1.6): Update to
	match new RTL syntax, and add floating-point vector support.

1993-07-19 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.22): When drawing cursor on highlighted
	text, and the cursor color is the same as the foreground color,
	invert the cursor so that it appears different from the
	highlighting.

1993-07-18 18:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.185), microcode/ntsig.c (1.4),
	microcode/ntgui.c (1.3), microcode/dosconio.c (1.11): Allow DOS and
	NT to share bands.

1993-07-18 17:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.3): Update unconfig.

1993-07-18 16:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/setenv.bat (1.1): Initial revision

1993-07-18 16:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/config.bat (1.3): Copy setup.bat out of ntutl.

1993-07-18 16:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/outf.c (1.3): The WINNT compilers do not pre-define
	__STDC__.

1993-07-18 16:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntenv.c (1.4): Add missing semi-colon.

1993-07-17 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.49): Eliminate #undef's for sony that aren't
	needed now and cause warnings.

1993-07-17 00:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.27): Fix yet another
	register allocation bug in division.

1993-07-16 23:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dostrap.c (1.4): Integer divide by zero was not being
	signalled correctly.

1993-07-16 16:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosconio.c (1.10): Set up an appropriate interrupt mask
	for the DOS high-priority interrupt.

1993-07-16 15:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/: disload.scm (1.7), comfiles.scm (1.4): Kludge to
	make defaulting of directory work under DOS (and NT?).

1993-07-16 15:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: decls.scm (1.5), lapgen.scm (1.23),
	machin.scm (1.18), rules1.scm (1.18), rules2.scm (1.6), rules3.scm
	(1.26), rulfix.scm (1.26), rulflo.scm (1.20), rulrew.scm (1.12):
	Update back end to reflect changes to the RTL and to handle
	floating-point vectors.

1993-07-16 15:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.118.1.2): tterm needs have-select? from the
	runtime system.

1993-07-16 15:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.20): Make read-event work on systems without
	select.

1993-07-16 14:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dostop.c (1.6), nttop.c (1.4): Update the copyright.

1993-07-16 02:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.118.1.1): Merge with 1.118.

1993-07-16 02:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dosproc.scm (1.3): Add new dummy predicates needed by the
	rest of edwin.

1993-07-08 20:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlcon.scm (4.27), rtlgen/rgcomb.scm (4.20),
	rtlgen/rgrval.scm (4.22): Fix a bug in closure bumping.  The code
	was written in a hybrid of locative-level rtl and "real" rtl.

1993-07-08 17:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.19): Fix bug in last edit.  I used
	rtl:make-offset instead of rtl:locative-offset.

1993-07-07 21:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.49): Fix lurking bug found
	in the 386 back end.

1993-07-07 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm1.scm (1.6): Improve disassembler
	output of compiled code blocks.

1993-07-07 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: mips/compiler.pkg (1.14), i386/compiler.pkg
	(1.16): Export rtl:bump-closure.

1993-07-07 16:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/dassm1.scm (1.3): Improve disassembler
	output of compiled code blocks.

1993-07-07 16:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.16), runtime.pkg (14.184): Don't use
	select-registry primitives unless the operating system supports the
	`select' system Call.

1993-07-07 15:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.11): Fix bug with
	unexpected constants appearing in the middle of expressions.

1993-07-07 01:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosenv.c (1.5): Missing arg list.

1993-07-06 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.97): Try not to clear the message
	unnecessarily when processing input events.

1993-07-05 23:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.40): Fix an out-of-range
	error because the @PCRXS addressing mode has a limited range.

1993-07-05 20:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.pkg (1.44), lapgen.scm
	(4.48), machin.scm (4.31), make.scm-68040 (4.89), rules1.scm
	(4.38), rules2.scm (4.14), rules3.scm (4.39), rules4.scm (4.14),
	rulrew.scm (1.6): - Update to match change in RTL introduced to
	improve array indexing.  - Add floating-vector support.  - Add
	top-level code compression support.

1993-07-03 12:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm1.scm (4.18): Write block
	description more clearly.

1993-07-03 04:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/rcompr.scm (1.14): Update a use of
	rtl:make-offset that I missed in the last set of edits.

1993-07-01 21:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm2.scm (4.20):
	bit-string-andc-bang cannot be integrated where it is used.  Fix
	the heuristic for detection of external labels and pc-relative
	addressing.

1993-07-01 19:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.183), thread.scm (1.15): Reimplement
	`thread-dead?' because Edwin needs it.

1993-07-01 18:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/disload.scm (1.6): Addressing-granularity means
	something different.

1993-07-01 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dosenv.c (1.4), ntenv.c (1.3), osenv.h (1.4),
	prosenv.c (1.9), uxenv.c (1.11): Change interfaces of
	OS_real_time_clock and OS_process_clock to return double instead of
	clock_t.  This combined with changes in the implementations of
	these procedures should prevent wraparound of these clocks.

1993-07-01 18:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: debug.scm (14.34), error.scm (14.34), runtime.pkg
	(14.182), thread.scm (1.14): Added mechanism to stop threads and
	restart them.  When a derived-thread error is signalled, the
	signalling thread stops itself to allow debugging to occur.  The
	debugger recognizes such stopped threads and restarts them
	appropriately when the user requests a continuation.
	
	Also changed the handling of the thread timer to vary the period of
	the timer in cases where the next desired timer event is longer
	than the default timer interval.

1993-07-01 17:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/: disload.scm (1.4), disload.scm (1.5): Fix typo in
	last edit.

1993-07-01 17:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/disload.scm (1.3): Compute addressing-granularity
	rather than default to 4.

1993-07-01 03:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulflo.scm (4.38): Fix a register
	allocator bug in float-load/offset, and add yet another
	floating-point pattern.

1993-07-01 02:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.pkg (1.42): Changes to
	support better array indexing.

1993-06-30 23:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/rerite.scm (1.3): Add rewrite rule for instances
	of byte-offset-address used for closure bumping.

1993-06-30 23:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (4.22), rcsesr.scm (4.3): Reflect
	changes to OFFSET and friends.

1993-06-30 23:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/rcompr.scm (1.13): Handle some more cases.

1993-06-30 23:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgcomb.scm (4.18), rgrval.scm (4.21): rtl
	offsets have changed.

1993-06-30 23:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.60): Add open coding for  
	floating-vector primitives   vector-cons-style primitives  
	flonum-atan2

1993-06-30 23:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlbase/: rtlcon.scm (4.26), rtlexp.scm (4.19),
	rtlty1.scm (4.21), rtlty2.scm (4.12): Diddle with locatives to
	allow index addressing modes.

1993-06-30 23:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.10): Fix a common float
	reference.

1993-06-30 23:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulflo.scm (4.37): Add floating-point
	vector support, and support for trig and friends.

1993-06-30 23:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.45): Add handlers for a
	few common cases.

1993-06-30 23:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.40): Improve primitive
	calling code.  Handle allocation primitives.

1993-06-30 23:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules1.scm (4.35): Update rules to
	handle new OFFSET and friends RTL addressing modes.  Add improved
	generation of common patterns.

1993-06-30 23:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rgspcm.scm (4.3): Add handlers for
	string-allocate, vector-cons, and floating-vector-cons.

1993-06-30 23:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/machin.scm (4.29): More primitives are
	handled.  Redo floating-point sizing.

1993-06-30 23:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.13): Teach the peephole
	optimizer to handle DEPI, and friends, and some FLOPs.

1993-06-30 23:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.44): Add new hooks
	(invoke-primitive, allocation and flonum primitives).  Reorder
	registers so priority is given to the C callee saves registers.

1993-06-30 23:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.23): Add
	compiler:assume-safe-fixnums?

1993-06-30 23:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.99): New array indexing code.  Open
	coding of floating-point vector operations.  Special handling of
	string-allocate, vector-cons, and floating-vector-cons.  Special
	handling of flo:sin, etc. on the Snakes.  Better primitive calling
	on the Snakes.

1993-06-30 23:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.13): Fix bug in rtl-common which
	introduced a bound-variable conflict if a slot has the same as the
	item being defined.

1993-06-30 23:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.20): Fix bug in
	load-machine-register!: If machine-register is a floating-point
	register, it is not OK to ask for any alias.

1993-06-30 20:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/disload.scm (1.2): Allow disload to load into a
	compiler-less image.

1993-06-30 20:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm1.scm (4.18): Pretty up the
	output.

1993-06-30 19:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/disload.scm (1.1): Initial revision

1993-06-30 17:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/comfiles.scm (1.3): Make check-stage more tolerant
	of missing files.

1993-06-29 23:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/hppa.m4 (1.27), cmpintmd/hppa.h (1.42): Add
	hooks for faster primitive invocation, faster allocation of
	vectors, strings, and floating-point vectors, and for non-boxing
	flonum operations.

1993-06-29 19:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.15): Eliminate unnecessary declaration.

1993-06-29 19:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (4.16): Rename global-2 interrupt bit to after-gc,
	and add new mask timer-ok.

1993-06-29 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: boot.scm (14.6), gc.scm (14.9), gcdemn.scm (14.6),
	hash.scm (14.5), intrpt.scm (14.14), runtime.pkg (14.181),
	version.scm (14.163): This runtime system requires microcode
	version 11.133 or later.
	
	Implement a new interrupt that is signalled after each GC and which
	runs at roughly the same priority as character interrupts.  All GC
	daemons, with the exception of the object hash daemon, run in this
	interrupt handler rather than during the GC proper.  This allows GC
	daemons to allocate storage and prevents GC daemons from running
	during critical sections.

1993-06-29 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.81), fixobj.h (9.32), intrpt.h (1.12),
	utils.c (9.59), version.h (11.133): Redefine the GLOBAL-2 interrupt
	bit to be the interrupt that is signalled after each GC.
	
	Change the interrupt code to allow the runtime system to specify
	what interrupt mask should be installed immediately before an
	interrupt handler is invoked.  This allows the runtime system to
	override the simple prioritized masking being performed by the
	microcode.

1993-06-29 18:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: C/machin.scm (1.3), sparc/machin.scm (1.2):
	Disable some primitives until the back end learns how to handle
	them.

1993-06-29 18:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: i386/machin.scm (1.17), mips/machin.scm
	(1.12), vax/machin.scm (4.12): Disable some primitives until the
	back end learns how to handle them.

1993-06-29 18:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/machin.scm (1.6): Change flonum
	addressing units.

1993-06-29 18:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: alpha/machin.scm (1.5), bobcat/machin.scm
	(4.30): Disable some primitive open coding until the back end is
	taught how to do it.

1993-06-29 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.67): Add slot in fixed objects vector for
	interrupt masks.

1993-06-29 04:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: fgopt/simapp.scm (4.7), base/scode.scm (4.9): Fix
	shadowing problem.

1993-06-29 00:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/simapp.scm (4.6): Fix check that only allows
	primitives and compiled procedures.  Any procedures are legal here.

1993-06-27 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/outf.c (1.2): Generalize variable number of arguments
	code to work in non-ANSI implementations.

1993-06-27 22:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/outf.h (1.3): Don't include <stdarg.h> because it might
	not be available in a given implementation.  Don't declare voutf
	because it's not referred to and it requires <stdarg.h>.

1993-06-27 22:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.48): On Sony, <unistd.h> defines ioctl.

1993-06-27 22:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdrn.c (1.6): Fix incorrect declaration: static
	declarations cannot be local, and ANSI declaration arglists cannot
	be empty.

1993-06-25 19:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/packag.scm (14.16): Finish fixing the problem.

1993-06-25 19:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/packag.scm (14.15): Fix spurious I/O introduced in the
	last edit.

1993-06-25 18:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.12): Fix problem:
	Nullified branch instruction cannot be moved before an instruction
	that the branch tensioner may expand into multiple instructions.

1993-06-25 17:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.162): Make the order of invocation of
	gc-daemons the same as the order of "declaration", and make the
	rehash daemon be the first.

1993-06-25 17:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gcdemn.scm (14.5): Change gc-daemons and
	secondary-gc-daemons into queues so that the daemons are invoked in
	the order in which they are "declared".

1993-06-25 17:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/queue.scm (14.3): Add queue->list and queue->list/unsafe
	operations.

1993-06-25 17:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.47): Reorder initializations so that hash is
	initialized before primitive-io, to make the rehash GC daemon the
	first one to execute.

1993-06-25 16:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utils.c (9.58): Reorder some stuff so that when a
	boot-time error fails because of an unbound variable, the stack
	trace prints the name of the variable.

1993-06-24 18:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/intext.c (1.4): Fix copyright.

1993-06-24 17:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.80): define FILE_READABLE.

1993-06-24 17:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.57): Global NT merge.

1993-06-24 14:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.60): Fix bug in search_for_primitive.	If
	the second allocate_marked_vector call aborted because of a GC, the
	global variables were left in an inconsistent state.

1993-06-24 11:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/makefile (1.2): Rename hard-params to hard-par,
	and improve "make clean"

1993-06-24 11:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/config.bat (1.2): Remove echo.

1993-06-24 04:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/outf.h (1.2): Add ansidecl.h to define DOTS and
	friends.

1993-06-24 04:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.132): Global NT merge.

1993-06-24 04:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/makefile (1.1): Initial revision

1993-06-24 04:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.29): Global NT merge.

1993-06-24 03:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/: sun3-gcc.s (1.1), sun3-nfp.s (1.1), sun3.s
	(1.1): Initial revision

1993-06-24 03:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntutl/: bch-p-nt.lst (1.1), scm-p-nt.lst (1.1),
	config.bat (1.1), makefile (1.1), bch-cl3.lst (1.1), float.h (1.1),
	limits.h (1.1), scm-cl3.lst (1.1): Initial revision

1993-06-24 03:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/copyrigh.c (1.2): Change to new format

1993-06-24 03:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/vax.m4 (1.2): Fix RCS header.

1993-06-24 03:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fixobj.h (9.31), flonum.c (9.40), future.c (9.28),
	futures.h (9.28), generic.c (9.37), gpio.c (1.10), history.h
	(9.28), hunk.c (9.28), image.h (9.24), intercom.c (9.29), load.c
	(9.32), locks.h (9.25), lookprm.c (1.9), lookup.h (9.48), missing.c
	(9.30), osctty.h (1.3), osfile.h (1.2), osproc.h (1.8), ospty.h
	(1.3), ossig.h (1.3), ostop.h (1.4), ostty.c (1.3), ostty.h (1.4),
	ppband.c (9.45), prim.c (9.36), prim.h (9.43), prims.h (9.41),
	prmcon.h (1.2), prosfile.c (1.6), prosproc.c (1.13), prospty.c
	(1.2), prostty.c (1.5), pruxfs.c (9.51), pruxsock.c (1.7),
	psbtobin.c (9.49), regex.c (1.13), regex.h (1.6), rgxprim.c (1.10),
	sample.c (9.25), scode.h (9.25), sdata.h (9.32), sgraph.h (1.6),
	starbase.c (1.6), starbasx.c (1.5), step.c (9.31), string.c (9.36),
	syntax.c (1.22), syntax.h (1.8), trap.h (9.43), tterm.c (1.3),
	typename.txt (1.3), usrdef.h (9.39), uxctty.c (1.12), uxfile.c
	(1.7), uxio.h (1.3), uxproc.c (1.15), uxproc.h (1.4), uxsock.h
	(1.5), uxterm.h (1.4), uxtop.h (1.2), uxtty.c (1.9), uxutil.c
	(1.5), uxutil.h (1.2), winder.h (9.25), x11.h (1.15), x11color.c
	(1.4), x11graph.c (1.30), x11term.c (1.21): Fixing the RCS header

1993-06-24 03:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: zones.h (9.25), array.h (9.35), bchdrn.h (1.5),
	bchgcl.c (9.45), bchpur.c (9.59), bignmint.h (1.3), bigprm.c (1.3),
	bkpt.c (9.28), bkpt.h (9.29), bltdef.h (1.3), breakup.c (9.24),
	char.c (9.30), cmpint.h (10.5), comlin.c (1.8), comlin.h (1.6),
	copyrigh.c (1.1), critsec.h (1.3), dfloat.c (1.4), dmpwrld.c
	(9.37), dosasutl.asm (1.3), dosexcp.h (1.3), dosfg.c (1.3),
	dosfile.c (1.2), dosi10.asm (1.2), dosio.h (1.2), doskbd.h (1.2),
	dosselec.h (1.2), dosterm.h (1.2), dostop.h (1.2), dostrap.h (1.2),
	dostterm.c (1.2), dosutil.c (1.2), dosutil.h (1.2), dstack.h (1.6),
	edwin.h (1.6), extern.c (9.33): Fixing the RCS header

1993-06-24 02:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prntenv.c (1.1), prntfs.c (1.1): Initial revision

1993-06-24 02:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmptype.h (1.1), outf.c (1.1), outf.h (1.1): Initial
	revision

1993-06-24 02:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxsig.c (1.26), wind.c (1.5), xdebug.c (9.32): Global
	NT merge.

1993-06-24 02:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: utils.c (9.57), ux.h (1.47): Global NT merge.

1993-06-24 02:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: term.c (1.6), transact.c (1.2): Global NT merge.

1993-06-24 02:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: scheme.h (9.35), stack.h (9.34): Global NT merge.

1993-06-24 02:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: purify.c (9.49), purutl.c (9.44), returns.h (9.41):
	Global NT merge.

1993-06-24 02:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prmcon.c (1.2), psbmap.h (9.39), ptrvec.c (1.2):
	Global NT merge.

1993-06-24 02:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: osscheme.h (1.8), osscheme.c (1.7), posixtyp.h (1.8):
	Global NT merge.

1993-06-24 02:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: option.c (1.33), os.h (1.4), oscond.h (1.14): Global
	NT merge.

1993-06-24 01:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: memmag.c (9.50), msdos.h (1.5): Global NT merge.

1993-06-24 01:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.76): Remove left-over printfs.

1993-06-24 01:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.52): Global NT merge.

1993-06-24 01:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: interp.c (9.75), interp.h (9.37), liarc.h (1.2):
	Global NT merge.

1993-06-24 01:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: hppacach.c (1.9), hppanwca.c (1.2): Global NT merge.

1993-06-24 00:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gcloop.c (9.41): Global NT merge.

1993-06-24 00:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: gc.h (9.33), gccode.h (9.48): Global NT merge.

1993-06-24 00:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: error.c (1.5), extern.h (9.50), fasload.c (9.68):
	Global NT merge.

1993-06-24 00:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosio.c (1.6): Global NT merge.

1993-06-24 00:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosint10.c (1.8): Flush spurious ^Z at the end of the
	file.

1993-06-24 00:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/debug.c (9.44): Global NT merge.

1993-06-24 00:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/vax.h (1.8): Global NT merge.

1993-06-24 00:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: i386.h (1.21), mc68k.h (1.35), mips.h
	(1.18): Global NT merge.

1993-06-24 00:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: alpha.h (1.5), hppa.h (1.41): Global NT
	merge.

1993-06-23 23:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpgc.h (1.24), cmpintmd/c.h (1.3): Global NT merge.

1993-06-23 23:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchutl.c (1.3), bignum.c (9.40), boot.c (9.79):
	Global NT merge.

1993-06-23 23:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.52), bchmmg.c (9.76): Global NT merge.

1993-06-23 23:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ansidecl.h (1.3), bchdmp.c (9.70): Global NT merge.

1993-06-23 23:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: sgx.c (1.8), sgx11.c (1.3), sgraph_a.c (1.15): Global
	NT merge.

1993-06-23 23:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.47): Global NT merge.

1993-06-23 22:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntscreen.h (1.3): Fix inclusion symbol.

1993-06-23 22:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: nt.h (1.3), ntgui.h (1.3), ntio.h (1.4): Fix
	inclusion symbol.

1993-06-23 22:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/nttty.c (1.3): Fix date.

1993-06-23 22:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/nttterm.c (1.2): Fix date and RCS header.

1993-06-23 22:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntterm.h (1.3), nttop.h (1.3): Fix date, RCS header,
	and inclusion symbol.

1993-06-23 22:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntsys.c (1.2), nttop.c (1.3), nttrap.c (1.3),
	nttrap.h (1.3): Fix date.

1993-06-23 22:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntsig.c (1.3), ntsys.h (1.2): Fix date and inclusion
	symbol.

1993-06-23 22:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntscreen.c (1.2), ntscreen.h (1.2): Add copyright and
	RCS header.

1993-06-23 22:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntio.c (1.3), ntio.h (1.3): Fix date.

1993-06-23 22:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntgui.c (1.2), ntgui.h (1.2): Add copyright.

1993-06-23 22:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntfile.c (1.3), ntfs.c (1.3): Fix date and RCS
	header.

1993-06-23 21:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ntasutl.asm (1.2): Fix RCS header and date.

1993-06-23 21:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntenv.c (1.2), ntfile.c (1.2), ntfs.c (1.2), ntio.c
	(1.2), ntio.h (1.2), ntsig.c (1.2), ntterm.h (1.2), nttop.c (1.2),
	nttop.h (1.2), nttrap.c (1.2), nttrap.h (1.2), nttty.c (1.2):
	Global NT merge

1993-06-23 21:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ntgui.c (1.1), ntgui.h (1.1), ntscreen.c (1.1),
	ntscreen.h (1.1), ntutl/ntgui.rc (1.1): Initial revision

1993-06-23 21:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/nt.h (1.2): First NT global merge.

1993-06-17 22:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.31): Teach the unparser to print
	floating-point vectors.

1993-06-17 00:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/comcmp.scm (1.4): Make it handle the new constants
	used with DEFINE-MULTIPLE.

1993-06-16 11:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/io.scm (14.35): Fix bug in translated output where by
	doing a newline when the output buffer is full would cause an
	infinite loop.

1993-06-15 15:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: config.h (9.79), config.h (9.80): Add support for C
	back end.

1993-06-15 15:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.3): Some versions of realloc (e.g.
	SunOS4) do not understand  realloc(NULL, size).

1993-06-15 15:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ux.h (1.46), uxsock.c (1.11): SunOS 4
	conditionalization.

1993-06-12 18:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.40): GCC now supports shared
	libraries in HP-UX.  The closure hack has to be used with it as
	well.

1993-06-11 11:19  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/TODO (1.3): add two more entries.

1993-06-10 14:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/lapgen.scm (1.4): Fix renamed variables.

1993-06-10 14:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/lapgen.scm (1.3): Fix new problems with the
	"register allocator".  Floating-point values cannot be allocated to
	ordinary variables and viceversa.

1993-06-10 02:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/packag.scm (14.14): Fix incorrect variable name.

1993-06-10 02:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.180): Add support for code compiled to C.

1993-06-10 02:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: packag.scm (14.13), runtime.pkg (14.179): Add support
	for code compiled to C.

1993-06-10 00:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/C/rulrew.scm (1.2): Fix incorrect use of
	make-machine-register.	It should be make-machine-constant.

1993-06-09 21:06  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/machin.scm (1.2): Add interpreter register
	FREE.

1993-06-09 21:06  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.4): Handle random non-pointers
	with TRUE and FALSE tags.

1993-06-09 20:11  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.3): Handle false and empty list
	as pathname directories.

1993-06-09 17:25  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/TODO (1.2): Add correct date.

1993-06-09 17:12  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/TODO (1.1): Initial revision

1993-06-09 17:08  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/: recomp.scr (1.1), swmake (1.1): Initial
	revision

1993-06-09 16:38  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* microcode/cmpintmd/c.h (1.2): Add correct date.

1993-06-09 16:34  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.22), compinit.c (1.2): Merge in C back
	end changes.

1993-06-09 16:28  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* microcode/: boot.c (9.78), const.h (9.42), option.c (1.32): Add
	support for booting the C back end.

1993-06-09 06:09  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/lapgen.scm (1.2): Fix standard-target! and
	standard-move-to-target!

1993-06-09 05:28  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/machines/C/cout.scm (1.2): Make sure that there is a
	valid pathname directory before taking its last component.

1993-06-09 05:01  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* microcode/cmpauxmd/c.c (1.2): Add scheme_hook_{low,high}, needed
	by HP-PA trap handling code.

1993-06-09 01:47  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* runtime/make.scm (14.46): Change "LiarC_" to "runtime_"

1993-06-08 02:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/sparc/assmd.scm (1.1),
	compiler/machines/sparc/coerce.scm (1.1),
	compiler/machines/sparc/decls.scm (1.1),
	compiler/machines/sparc/inerly.scm (1.1),
	compiler/machines/sparc/insmac.scm (1.1),
	compiler/machines/sparc/instr1.scm (1.1),
	compiler/machines/sparc/instr2a.scm (1.1),
	compiler/machines/sparc/instr2b.scm (1.1),
	compiler/machines/sparc/instr3.scm (1.1),
	compiler/machines/sparc/lapgen.scm (1.1),
	compiler/machines/sparc/lapopt.scm (1.1),
	compiler/machines/sparc/machin.scm (1.1),
	compiler/machines/sparc/make.scm (1.1),
	compiler/machines/sparc/rgspcm.scm (1.1),
	compiler/machines/sparc/rules1.scm (1.1),
	compiler/machines/sparc/rules2.scm (1.1),
	compiler/machines/sparc/rules3.scm (1.1),
	compiler/machines/sparc/rules4.scm (1.1),
	compiler/machines/sparc/rulfix.scm (1.1),
	compiler/machines/sparc/rulflo.scm (1.1),
	compiler/machines/sparc/rulrew.scm (1.1),
	compiler/machines/sparc/cf.h-sparc (1.1),
	compiler/machines/sparc/cmpaux-sparc.m4 (1.1),
	compiler/machines/sparc/cmpint-sparc.h (1.1),
	compiler/machines/C/compiler.cbf (1.1),
	compiler/machines/C/compiler.pkg (1.1),
	compiler/machines/C/compiler.sf (1.1), compiler/machines/C/cout.scm
	(1.1), compiler/machines/C/ctop.scm (1.1),
	compiler/machines/C/cutl.scm (1.1), compiler/machines/C/decls.scm
	(1.1), compiler/machines/C/lapgen.scm (1.1),
	compiler/machines/C/machin.scm (1.1), compiler/machines/C/make.scm
	(1.1), compiler/machines/C/rgspcm.scm (1.1),
	compiler/machines/C/rules1.scm (1.1),
	compiler/machines/C/rules2.scm (1.1),
	compiler/machines/C/rules3.scm (1.1),
	compiler/machines/C/rules4.scm (1.1),
	compiler/machines/C/rulfix.scm (1.1),
	compiler/machines/C/rulflo.scm (1.1),
	compiler/machines/C/rulrew.scm (1.1), microcode/compinit.c (1.1),
	microcode/liarc.h (1.1), microcode/cmpauxmd/c.c (1.1),
	microcode/cmpintmd/c.h (1.1): Initial revision

1993-06-08 00:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.8): Remove noise when printing.

1993-06-08 00:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.7): Update date.

1993-06-08 00:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.45): Linux changes.

1993-06-08 00:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/intext.h (1.4): Preserve errno around dstack
	operations.

1993-06-07 23:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.6): Rename -update option to -add.  Add
	-replace option.

1993-06-07 22:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.5): Fix bug.	Missing &.  I wonder how
	this ever worked.

1993-06-04 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.4): Supply missing argument to fprintf.

1993-06-03 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hooks.c (9.51): When stack is erased by
	WITHIN-CONTROL-POINT, the history information stored in
	Prev_Restore_History_* must be reset.

1993-04-29 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.13): Change keyboard interrupt code so
	that all interrupt activity occurs inside the event transmitted to
	the console port's owner.  This stuff can't be done directly by the
	interrupt handler because it can be executed when there is no
	thread at all.

1993-04-28 18:31  Hal Abelson <hal@zurich.ai.mit.edu>

	* runtime/thread.scm (1.13): Always restore state of BLOCK-EVENTS?
	flag in a thread when returning from SUSPEND-CURRENT-THREAD.

1993-04-28 15:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.39): Don't use BLOCK-THREAD-EVENTS to prevent
	the previewer from running -- there's a window in which an event
	can be delivered, causing a character to be queued; but READ-EVENT
	doesn't look at the queue after it's in that state.

1993-04-28 15:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.12): Fix typo in last change.

1993-04-27 16:21  Hal Abelson <hal@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.178), thread.scm (1.11): Add new
	procedures REGISTER-TIMER-THREAD and DEREGISTER-TIMER-THREAD to
	allow asynchronous delivery of timer events.

1993-04-27 06:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/array.c (9.45): Delete extraneous semicolon.

1993-04-27 06:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxio.c (1.28), uxio.c (1.29): Fix typo.

1993-04-27 05:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.50): Fix bug caused by error in Xlib man
	page (and all of the books I've seen too): Xlib IO error handlers
	take only one arg, not two.

1993-04-27 05:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.161): This runtime requires microcode
	version 11.131 or later.  Edwin versions prior to 3.78 will not
	work correctly with this runtime.
	
	The aim of these changes is to provide a central mechanism to
	detect input on all input channels, and thus to prevent a single
	thread from performing a blocking input operation that locks out
	other threads that can do useful work.	Now, in places where a
	thread would block on an input device, it instead registers its
	interest in the device with a centralized registry, and suspends. 
	If all threads in the system are suspended, then Scheme blocks by
	calling `select' and waiting for something interesting to happen.
	
	* Introduce new procedures that use the `select' system call to  
	provide a mechanism to monitor input availability on many input  
	devices simultaneously:
	
		ADD-TO-SELECT-REGISTRY!
		CHANNEL-DESCRIPTOR-FOR-SELECT
		DEREGISTER-INPUT-THREAD-EVENT
		MAKE-SELECT-REGISTRY
		PERMANENTLY-REGISTER-INPUT-THREAD-EVENT
		REGISTER-INPUT-THREAD-EVENT
		REMOVE-FROM-SELECT-REGISTRY!
		SELECT-DESCRIPTOR
		SELECT-REGISTRY-TEST
		TEST-FOR-INPUT-ON-CHANNEL
		TEST-FOR-INPUT-ON-DESCRIPTOR
	
	  These procedures require the operating system to support `select'
	or
	  some equivalent.  Calling them in another operating system, e.g.
	  DOS, will cause an error to be signalled.
	
	* Delete old `select' mechanism procedures which are no longer used
	or   supported (these will be deleted from the microcode in the
	future):
	
		CHANNEL-REGISTER
		CHANNEL-UNREGISTER
		CHANNEL-REGISTERED?
		CHANNEL-SELECT-THEN-READ
	
	* Modify CHANNEL-READ to automatically call
	TEST-FOR-INPUT-ON-CHANNEL   if the `select' system call is
	supported by the operating system.    One consequence of this is
	that CHANNEL-READ can return #F for    channels that are in
	"blocking" mode; if you don't want #F you must	  call
	CHANNEL-READ-BLOCK instead (this was always a good idea    anyway).
	
	* Change X graphics devices to use the new select machinery to
	preview   the event stream from the X server.
	
	-------------------- The following changes are not part of the
	general aim stated above, although most of them either derive from
	it or support it:
	
	* Add new procedures to the "threads" package: (THREADS-LIST)
	returns   a list of all thread objects, including dead threads,
	that haven't   yet been garbage collected.  (THREAD-EXECUTION-STATE
	thread) returns   the "execution state" of a thread, a symbol.
	
	* Add code to the threads package that attempts to clean up all  
	attachments of the thread when it is exited.  This is a  
	generalization of previous patches generated by GJR and GJS for  
	6.001.
	
	* Plug several holes in the thread event delivery mechanism which  
	allowed the threads package to get into states where events were
	not   delivered to their threads.
	
	* SUSPEND-CURRENT-THREAD now returns the event that caused the
	thread	 the be resumed; previously it had an unspecified value. 
	If several   events are delivered before resumption, the event
	returned is the   first one that is not #F, or #F if all of the
	events were #F.
	
	* Fix several typos that caused errors when generating reports for 
	 conditions in the threads package.

1993-04-27 05:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.27): Fix oversight in UX_select_input that
	was detected by C compiler.

1993-04-27 05:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.227), edwin.pkg (1.118), intmod.scm (1.56),
	make.scm (3.78), process.scm (1.29), tterm.scm (1.19), xterm.scm
	(1.38): These changes require microcode 11.131 and runtime 14.161. 
	The changes are a redesign of the keyboard input, subprocess, and
	inferior thread communication mechanisms to use the new `select'
	interface support.  The changes should not be visible to users or
	customizers.

1993-04-27 05:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.117): Use CHANNEL-READ-BLOCK instead of
	CHANNEL-READ.

1993-04-27 05:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.34), runtime.pkg (14.177), thread.scm
	(1.10), unxprm.scm (1.24), x11graph.scm (1.28): This runtime
	requires microcode version 11.131 or later.  Edwin versions prior
	to 3.78 will not work correctly with this runtime.
	
	The aim of these changes is to provide a central mechanism to
	detect input on all input channels, and thus to prevent a single
	thread from performing a blocking input operation that locks out
	other threads that can do useful work.	Now, in places where a
	thread would block on an input device, it instead registers its
	interest in the device with a centralized registry, and suspends. 
	If all threads in the system are suspended, then Scheme blocks by
	calling `select' and waiting for something interesting to happen.
	
	* Introduce new procedures that use the `select' system call to  
	provide a mechanism to monitor input availability on many input  
	devices simultaneously:
	
		ADD-TO-SELECT-REGISTRY!
		CHANNEL-DESCRIPTOR-FOR-SELECT
		DEREGISTER-INPUT-THREAD-EVENT
		MAKE-SELECT-REGISTRY
		PERMANENTLY-REGISTER-INPUT-THREAD-EVENT
		REGISTER-INPUT-THREAD-EVENT
		REMOVE-FROM-SELECT-REGISTRY!
		SELECT-DESCRIPTOR
		SELECT-REGISTRY-TEST
		TEST-FOR-INPUT-ON-CHANNEL
		TEST-FOR-INPUT-ON-DESCRIPTOR
	
	  These procedures require the operating system to support `select'
	or
	  some equivalent.  Calling them in another operating system, e.g.
	  DOS, will cause an error to be signalled.
	
	* Delete old `select' mechanism procedures which are no longer used
	or   supported (these will be deleted from the microcode in the
	future):
	
		CHANNEL-REGISTER
		CHANNEL-UNREGISTER
		CHANNEL-REGISTERED?
		CHANNEL-SELECT-THEN-READ
	
	* Modify CHANNEL-READ to automatically call
	TEST-FOR-INPUT-ON-CHANNEL   if the `select' system call is
	supported by the operating system.    One consequence of this is
	that CHANNEL-READ can return #F for    channels that are in
	"blocking" mode; if you don't want #F you must	  call
	CHANNEL-READ-BLOCK instead (this was always a good idea    anyway).
	
	* Change X graphics devices to use the new select machinery to
	preview   the event stream from the X server.
	
	-------------------- The following changes are not part of the
	general aim stated above, although most of them either derive from
	it or support it:
	
	* Add new procedures to the "threads" package: (THREADS-LIST)
	returns   a list of all thread objects, including dead threads,
	that haven't   yet been garbage collected.  (THREAD-EXECUTION-STATE
	thread) returns   the "execution state" of a thread, a symbol.
	
	* Add code to the threads package that attempts to clean up all  
	attachments of the thread when it is exited.  This is a  
	generalization of previous patches generated by GJR and GJS for  
	6.001.
	
	* Plug several holes in the thread event delivery mechanism which  
	allowed the threads package to get into states where events were
	not   delivered to their threads.
	
	* SUSPEND-CURRENT-THREAD now returns the event that caused the
	thread	 the be resumed; previously it had an unspecified value. 
	If several   events are delivered before resumption, the event
	returned is the   first one that is not #F, or #F if all of the
	events were #F.
	
	* Fix several typos that caused errors when generating reports for 
	 conditions in the threads package.

1993-04-27 04:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.33): Fix two bugs related to inheritance:
	CONDITION-PREDICATE and CONDITION-ACCESSOR did not allow a
	condition of an inherited type as an argument, and
	MAKE-CONDITION-TYPE would incorrectly compute the number of fields
	in a condition type which overrode one of the field names in its
	generalization.

1993-04-27 04:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxio.c (1.4), uxio.c (1.26), uxselect.h (1.5),
	version.h (11.131), x11base.c (1.49): These changes affect any code
	using the SELECT-REGISTRY-TEST primitive.  Runtime 14.161 requires
	this microcode revision or later, but older bands can run over this
	microcode.
	
	* Change interface to SELECT-REGISTRY-TEST.  Order or second and
	third	arguments is reversed.	Third argument is changed from a
	select	 registry to a vector.	Primitive returns a nonnegative
	integer   indicating the number of descriptors that were stored in
	the vector,   or a negative integer indicating that nothing is
	stored and that   another interesting condition holds.
	
	* Add new primitive SELECT-DESCRIPTOR, a simplified version of	
	SELECT-REGISTRY-TEST that works for a single descriptor and does
	not   require consing in the interface.

1993-04-20 14:26  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.50): "Fixed" a bug in tags-search having to
	do with the case-sensitivty arguement.	we now accept this argument
	but do nothing with it.  This should be fixed at some point.

1993-04-19 04:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.33), runtime.pkg (14.176): Add primitives to
	set the baud rate of a terminal.

1993-04-19 04:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/dosio.c (1.5): Add primitives to set the baud rate of a
	terminal.

1993-04-19 04:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxterm.c (1.22), prosterm.c (1.13), osterm.h (1.10):
	Add primitives to set the baud rate of a terminal.

1993-04-15 06:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dirunx.scm (1.2): Add support for "gzipped" files.

1993-04-15 05:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.35): Add support for "gzipped" files.

1993-04-06 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.130): Implement primitive to detect
	availability of `select' system call.

1993-04-06 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosio.c (1.8), pruxio.c (1.3), osio.h (1.8),
	x11base.c (1.48), uxio.c (1.25), uxselect.h (1.4), dosio.c (1.4):
	Implement primitive to detect availability of `select' system call.

1993-04-06 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxio.c (1.2): Implement primitive to detect
	availability of `select' system call.

1993-04-04 16:48  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* microcode/list.c (9.31): Added document strings for primitives.

1993-04-01 20:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.33): Add declarations to ignore unused
	variables.

1993-04-01 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.32): Add M-x show-parameter-list to Scheme
	mode as M-A.

1993-04-01 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.31): Add M-x show-parameter-list to Scheme
	mode as M-A.

1993-03-30 22:27  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* microcode/hooks.c (9.50): Add request-interrupts! primitive and
	re-document interrupt mask primitives.

1993-03-28 16:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.17): Add missing B suffix to
	use of MOVZX instruction.

1993-03-25 17:20  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.25): fixed a misleading
	DEFINE-INSTRUCTION example.

1993-03-23 21:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.15): Fix bug in canonicalize/lambda. 
	Lambda expressions that need the binding of #[environment] cannot
	be compiled separately.

1993-03-23 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.23): Work around what is apparently a bug in
	the HP-UX 9.01 C compiler for the S700 machines.

1993-03-16 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.24): Improve error message for NAMED
	option without TYPE option.

1993-03-16 20:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.26): Remove early stack-pop
	instructions.

1993-03-16 17:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/debug.scm (14.33): Add ``M'' command to print the stack
	frame in raw format.

1993-03-16 17:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.25): Declare the assembly hook
	region for the trap handler, and change the flonum return
	convention so that some state is available in case of a trap.

1993-03-16 16:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxtrap.c (1.21), uxtrap.h (1.19): Teach
	continue_from_trap about assembly hooks.

1993-03-16 00:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.27): After disk-restore, the display list
	must be flushed.

1993-03-15 13:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/termcap.c (1.5): Remove more alpha problems.

1993-03-15 13:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/termcap.c (1.4): Remove more alpha problems.

1993-03-15 13:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.24): Work around stupid restrictions on
	aggregate initializers.

1993-03-14 17:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/termcap.c (1.3): Move includes before code so that
	external decls for a few procedures are visible before the compiler
	infers decls.

1993-03-14 17:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.18): New alpha trap definitions.

1993-03-13 00:39  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* runtime/load.scm (14.42): Fix magic constant in
	load/purification-root.

1993-03-11 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/memmag.c (9.49): Automatically disable GC reference
	trace at end of GC.

1993-03-10 12:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxio.c (1.1): Initial revision

1993-03-10 12:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxio.c (1.23), uxselect.h (1.3), x11base.c (1.47),
	version.h (11.129): Implement new interface to `select' system
	call, which allows construction of "registries" of file
	descriptors, which can then be passed in as arguments.

1993-03-10 12:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fasdump.c (9.55), gccode.h (9.47), gcloop.c (9.40),
	memmag.c (9.48), purify.c (9.48): Add new primitive
	GC-TRACE-REFERENCES which will compute the set of objects that
	point to a given object.  This primitive is implemented only when
	the compile-time flag ENABLE_GC_DEBUGGING_TOOLS is set.

1993-03-09 21:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.14): Fix bug in canonicalize/comment.

1993-03-09 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.9): Don't hold on to continuation of caller
	to CREATE-THREAD.

1993-03-08 02:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/load.scm (14.41): Modify load/purification-root to allow
	the C back end not to generate Scode comments.

1993-03-07 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.23), make.scm (14.45), record.scm
	(1.20), runtime.pkg (14.175), unpars.scm (14.30): Add hooks to the
	runtime system that are for use by SOS:
	
	* Add a slot to record types to hold the class wrapper so that
	records   can have classes associated with them, and thus be
	dispatched on by   generic procedures.
	
	* Maintain a population of record types so that classes can be
	added	to records retroactively when the object system is loaded.
	
	* Add a new unparser hook that overrides the default unparser for  
	records that satisfy RECORD? (records with explicit unparsers are  
	unaffected).
	
	* Add a new unparser hook that may override the representation of  
	procedures, so that generic procedures can have a special  
	representation.
	
	* Change the DEFINE-STRUCTURE macro so that record-based structures
	  don't have an explicit unparser unless the PRINT-PROCEDURE option
	is   used.

1993-03-04 22:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dos.scm (1.10): Remove subprocess-job-control-available?,
	no longer needed and interfering with the Unix version.

1993-03-03 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.21): Eliminate a few more error checks
	that were missed in the last edit.

1993-03-03 11:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.16): Enable use of MOVZX.

1993-03-01 20:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.13): Fix some bugs in the last edit.

1993-03-01 20:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.12): Improve code generated by
	multi-definition by using new CONSTANTIFY directive.

1993-03-01 20:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.30): Add CONSTANTIFY directive.

1993-03-01 14:41  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/types.h (9.34): Insert missing comma (after
	"COMPILED-CODE-BLOCK" in TYPE_NAME_TABLE) reported by Jim Miller.

1993-03-01 12:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.44): Make DEFINE-MULTIPLE return the value
	returned by the last definition.

1993-03-01 12:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/make.scm (1.4): Turn compress-top-level?
	on.

1993-03-01 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.25): Add
	generate/remote-links.

1993-02-28 16:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.20): Eliminate prohibition against using
	syntactic keywords as variables.  If done properly, we could
	prohibit top-level variable bindings that might cause trouble while
	allowing local bindings; but this requires redesign of the
	syntaxer.

1993-02-28 11:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.11): Fix bug in
	fix-complex-return.  The instr moved could be the one storing the
	return address being loaded in the LDW instruction!

1993-02-28 01:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: machin.scm (4.28), make.scm (4.89):
	Add generate/remote-links, PC caching, and cache hints for consing,
	and PA-RISC 1.1 registers.

1993-02-28 01:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: lapgen.scm (4.43), rules1.scm
	(4.34), rulflo.scm (4.36): Add generate/remote-links, PC caching,
	and cache hints for consing.

1993-02-28 01:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.39): Add
	generate/remote-links and PC caching.

1993-02-27 16:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.9): Eliminate spurious
	ZDEPs.

1993-02-27 02:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.46): Speed up the uncompressor.

1993-02-27 02:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.45): Speed up the uncompressor.

1993-02-26 03:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.17): Fix various bugs from previous edit.

1993-02-25 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.16): Install missing error checks in various
	procedures that take lists as arguments.  Replace simple error
	calls with calls to more specific error signalling procedures. 
	Change mapping procedures to use iterative algorithm for
	multiple-list case.

1993-02-25 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.15): Install missing error checks in various
	procedures that take lists as arguments.  Replace simple error
	calls with calls to more specific error signalling procedures. 
	Change mapping procedures to use iterative algorithm for
	multiple-list case.

1993-02-25 04:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/option.scm (14.19): Fix package for dosprocess.

1993-02-25 03:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.21): shell-command must be autoloaded.  `M-x
	shell' needs it.

1993-02-25 03:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.9), unix.scm (1.34), editor.scm (1.226):
	Directory must be passed to os/quit.  By the time it is invoked,
	the code is not running in the context of the editor.

1993-02-25 03:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/basic.scm (1.129): Fix backwards conditional.

1993-02-25 00:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/decls.scm (1.46): Add doscom and dosshell

1993-02-24 22:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.117): Fix transposed characters (c-t).

1993-02-24 22:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.43): Eliminate warning from SF.

1993-02-24 22:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.116.1.1): Update DOS version.

1993-02-24 22:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.20): Add dos commands and pseudo shell.

1993-02-24 21:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: dosshell.scm (1.2), doscom.scm (1.2): Add load-option.

1993-02-24 21:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.116): Add package (edwin dosjob)

1993-02-24 21:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: doscom.scm (1.1), dosshell.scm (1.1): Initial revision

1993-02-24 21:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/option.scm (14.18): Add option DOSPROCESS

1993-02-24 21:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosproc.scm (1.1): Initial revision

1993-02-24 21:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.8), unix.scm (1.33), basic.scm (1.128),
	editor.scm (1.225): Add os/quit and os/scheme-can-quit?

1993-02-24 21:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: mips/compiler.pkg (1.13), vax/compiler.pkg
	(1.16), alpha/compiler.pkg (1.6): Export
	available-machine-registers and remove the disassembler.

1993-02-24 21:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.98): Changes for the C back end and to
	improve the open coding of vectors on the 386.

1993-02-24 21:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.pkg (1.41),
	i386/compiler.pkg (1.15), bobcat/compiler.pkg (1.43): Export
	available-machine-registers and remove the disassembler.

1993-02-24 21:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.25): Improve code generated by
	TYPED-CONS:VECTOR.  It now does something different if the number
	of elements exceeds the number of the available word registers.

1993-02-24 21:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.22): Add compiler:avoid-scode?

1993-02-24 21:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.11): Add new rewrite that avoids
	Scode lambdas.	Originally written for the C back end.

1993-02-24 21:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.42): Fix bug in last edit.

1993-02-24 20:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.41): Add changes for the C back end.

1993-02-23 15:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.77): Bug when checking in the last version.

1993-02-23 15:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.74): Bug when checking in.

1993-02-23 12:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.22): Fix bug in
	reference->register-transfer.  The bug was the cause of multiple
	
	(mov w (r 0) (r 0))
	
	instructions in the output.

1993-02-22 21:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: utils.c (9.56), interp.c (9.73), boot.c (9.76): Add
	C_call_scheme.

1993-02-22 21:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: utabmd.scm (9.66), errors.h (9.38): Add new errors.

1993-02-22 17:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/ralloc.scm (1.17): Handle case where
	REGISTER-LIVE-LENGTH of a register is zero.  This can happen when a
	register is assigned but not referenced; ideally it would be best
	not to generate code like this but in at least one case it is hard
	to avoid.

1993-02-22 16:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/error.c (1.4): Remove warnings.

1993-02-22 15:35  Nick Papadakis <nick@zurich.ai.mit.edu>

	* microcode/array.h (9.34): Fixed bug with scmsig/scm6003 involving
	image.o Somehow, #ifndef for REAL_IS_DEFINED_DOUBLE managed to
	vanish ...

1993-02-22 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.58): Fix bug that occurs in last line of
	paragraph when there's no whitespace in the line and it's longer
	than the fill column.

1993-02-21 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.136), unix.scm (1.32): Read value of
	DIRED-LISTING-SWITCHES that is local to the dired buffer being
	filled.

1993-02-20 20:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/termcap.c (1.2): Kludge in termcap.c for OSs with
	NO_BAUD_CONVERSION.

1993-02-20 20:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.44): 386BSD defines all the _SC_..., it just
	doesn't have sysconf.

1993-02-20 19:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.25): SIGCHLD may be initially ignored, if
	the process that started (exec'd to) scheme had set it to SIG_IGN.

1993-02-20 02:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.43): Add NO_BAUD_CONVERSION to OSF (at least
	DEC OSF).

1993-02-19 17:42  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/sercom.scm (1.61): I added a primitive form of toggling
	case-sensitivity by giving search commands a numeric argument.	C-s
	and C-r are dumb in that if you restart a search (ie C-s C-s), it
	won't remember if you were toggling case-fold-search before.  Also,
	search-prompt and re-search-prompt should display the numeric
	arguement or better yet, the new sensitivity when prompting.

1993-02-19 12:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.38): Fix typo.

1993-02-19 12:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpintmd/mc68k.h (1.34), cmpauxmd/mc68k.m4 (1.24),
	version.h (11.128): Implement SET-INTERRUPT-ENABLES! hook.

1993-02-19 12:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/ed-ffi.scm (1.29): Fix inconsistency with "edwin.pkg".

1993-02-18 01:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.10): Remove spurious
	NOPs

1993-02-18 01:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.42): Eliminate spurious
	NOPs.

1993-02-18 00:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.38): Eliminate spurious
	NOPs.

1993-02-18 00:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.21): Add macro NO_BAUD_CONVERSION.

1993-02-18 00:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ux.h (1.42), ux.c (1.11): Add EMULATE_FPATHCONF,
	EMULATE_SYSCONF, and fix a few prototypes.

1993-02-18 00:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dump.c (9.36): ifdef extern declarations to prevent
	warnings.

1993-02-18 00:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: tparam.c (1.6), bchdmp.c (9.69): Fix prototypes.

1993-02-17 20:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/lapgen.scm (1.4): Fix bug in
	split-64-bits.

1993-02-15 19:02  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.20): Fix = vs. == bug in
	OS_baud_rate_to_index.

1993-02-15 18:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/lapgen.scm (1.3): Disable warning about
	64-bit constants.

1993-02-15 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/rules3.scm (1.4): DEC OSF BL10 has fixed
	the bug about writing to the code containing the PC.  Re-enable the
	linker code.

1993-02-15 12:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/rulrew.scm (1.2): Fix bugs, missing
	rtl:constant-value

1993-02-15 00:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.9): Fix braino in last
	edit.

1993-02-14 23:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.8): Do not move
	instructions that mention *PC*.

1993-02-14 23:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.7): Fix braino.

1993-02-14 22:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/mul.c (9.33): Fix problems on the Alpha

1993-02-14 21:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasl.h (9.33): Fix problems on the Alpha

1993-02-14 18:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/telnet.scm (1.9): Add #\C-c #\C-d .

1993-02-14 18:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.41): Change to use correct osf feature macro.

1993-02-14 17:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.6): Add info on STWM.

1993-02-14 17:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.5): Fix parenthesis bug.

1993-02-14 17:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.4): Use reverse! instead
	of reverse to avoid holding onto two copies of the instruction
	list.

1993-02-14 01:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.3): Do not move
	conditionals around conditionals.

1993-02-13 23:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapopt.scm (1.2): Add a simple
	peephole optimizer to improve common patterns.

1993-02-13 19:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/instr2.scm (1.5): Fix bug introduced
	in last edit.

1993-02-13 00:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: lapgen.scm (4.41), instr1.scm (1.3),
	instr2.scm (1.4): Remove NOPs from conditionals by adding a
	branch-tensioner hack to accomodate the sign of the displacement.

1993-02-11 20:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulflo.scm (4.35): Remove name
	conflict introduced by last change.

1993-02-11 20:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulflo.scm (4.34): Fix NaN handling in
	floating-point conditions.

1993-02-11 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.22): Update to reflect new
	hook for SET-INTERRUPT-ENABLES!.

1993-02-10 21:35  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/psbmap.h (9.38): Conditionalized include of `8.3'
	filename for NT: bignumint.h -> bignumin.h

1993-02-10 21:32  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/posixtyp.h (1.7): Added posix types for Windows/NT +
	cl386

1993-02-10 21:29  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/oscond.h (1.13): Added conditionalizations for
	Windows/NT

1993-02-10 21:27  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/os.h (1.3): Parameterized 8.3 `8.3' filename problem
	for Windows/NT

1993-02-10 21:26  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/option.h (1.10): Changed `Header:' to `Id:'.

1993-02-10 21:24  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/option.c (1.31): Added Windows/NT-isms

1993-02-10 21:23  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.37): Changed `Header:' to `Id:'.

1993-02-10 21:18  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: fasdump.c (9.54), fft.c (9.31), fhooks.c (9.33):
	Header: -> Id:

1993-02-10 18:53  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/list.c (9.30): Header: -> Id:

1993-02-10 18:38  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/image.c (9.33): Header: -> Id:

1993-02-10 18:31  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/intext.h (1.3): Header: -> Id:

1993-02-10 18:13  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/bignum.c (9.39): Windows/NT `8.3' filename conflict in
	#include "bignumint.h"

1993-02-10 17:39  Stephen Adams <adams@zurich.ai.mit.edu>

	* microcode/: nt.h (1.1), ntasutl.asm (1.1), ntenv.c (1.1),
	ntfile.c (1.1), ntfs.c (1.1), ntio.c (1.1), ntio.h (1.1), ntsig.c
	(1.1), ntsys.c (1.1), ntsys.h (1.1), ntterm.h (1.1), nttop.c (1.1),
	nttop.h (1.1), nttrap.c (1.1), nttrap.h (1.1), nttterm.c (1.1),
	nttty.c (1.1): Initial revision

1993-02-10 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.6): Fix typo.

1993-02-10 11:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.28): Eliminate unfortunate loop that caused
	error to be signalled by C-x C-c when there were active processes.

1993-02-10 11:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.115): Change to match changes to "tagutl".

1993-02-10 11:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.49): Repaginate.

1993-02-08 22:35  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/outline.scm (1.6): Make FORWARD-TOPIC and FORWARD-UP-TOPIC
	move to the first topic marker if the point starts before the first
	topic marker.  Previously, they had no effect in that case.

1993-02-08 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/random.scm (14.5): Completely new generator, interface is
	upwards compatible with previous design.  RANDOM accepts any real
	number as a modulus argument.  MAKE-RANDOM-STATE additionally
	accepts an exact integer, which it uses as a seed to create the
	state, thus providing a simple means of producing a specific random
	state.

1993-02-06 01:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.39): Bug in last edit.

1993-02-06 00:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxtop.c (1.10), uxtrap.h (1.17): Make it work under
	Utah BSD 4.3

1993-02-06 00:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.24): Eta convert fclose to make it work with
	incompatible system-dependent declarations.

1993-02-06 00:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ux.h (1.40), uxenv.c (1.10): Make it work under Utah
	BSD 4.3

1993-02-06 00:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: posixtyp.h (1.6), tparam.c (1.5): Make it work under
	Utah BSD 4.3

1993-02-06 00:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppacach.h (1.4): Make it work under BSD.

1993-02-06 00:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.78): Fix bad conditionalization for HP
	hardware.  The definitions are hardware dependent, not OS
	dependent.

1993-02-06 00:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.38): Add support for BSD, with no
	uname call to find model, and with heaps potentially
	non-executable.

1993-02-06 00:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdrn.c (1.5): Avoid duplicate include of setjmp.h

1993-02-06 00:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.68): Eta convert read and write to avoid
	conflicting system-dependent declarations.

1993-02-02 17:14  Nick Papadakis <nick@zurich.ai.mit.edu>

	* microcode/x11base.c (1.46): Swapped order of arguments to
	x_default_color, was preferring "Emacs" resources over "edwin"
	resources.

1993-02-02 01:02  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.59): Fix bug by which RTL
	INVOCATION:PRIMITIVEs had the wrong frame size for combinations
	with partial open codings in tail-recursive position.

1993-02-01 23:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dos.scm (1.7): Add a pseudo-suspend to DOS that invokes a
	subshell.

1993-02-01 23:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/basic.scm (1.127): Add a pseudo-suspend to DOS that invokes
	a subshell.

1993-02-01 23:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosx32.c (1.6), dossig.c (1.16): Add a pseudo-suspend
	that invokes a subshell.

1993-01-31 20:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.26): Signal an error for (/ 1/2 0).

1993-01-29 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.24): Procedure that tests to see if window
	needs redisplay must first call %NOTICE-WINDOW-CHANGES.  A reply of
	#T permits the use of direct output, which is wrong if there are
	buffer changes that haven't yet been written to the screen.

1993-01-29 11:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.174): Simplify FILE-CASE clauses --
	otherwise CREF generates *two* entries for every binding in each
	duplicated file.

1993-01-29 11:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.8): Fix bug that caused
	THREAD-TIMER-RUNNING? to be true when the timer was not running. 
	Redesign code that toggles the timer on and off to make it simpler
	(and less likely to fail).

1993-01-28 19:09  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.173), make.scm (14.40): Add (runtime
	pathname nt)

1993-01-28 19:07  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/pathnm.scm (14.26): Change MS-NT to NT.

1993-01-28 18:21  Stephen Adams <adams@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.172): Add dummy variants for Windows NT.

1993-01-27 14:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/typename.txt (1.2): Add record types.

1993-01-25 13:03  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.48): I finished up the new tag stuff.  Now
	you can include other tags files as in emacs 19.  Also, you can
	optionally cause tags-search and tags-query-replace to kill buffers
	that aren't modified.

1993-01-24 19:45  Nick Papadakis <nick@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.14): Use the right package this time ...
	arrgh.

1993-01-24 18:26  Nick Papadakis <nick@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.13): Just get-time, not unix/get-time

1993-01-24 02:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/undo.scm (1.54): UNDO-DONE! shouldn't enable undo if it is
	disabled.

1993-01-23 22:47  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.12): updated floppy.scm to conform to the
	change made by Bill
	
	     RCS file: /scheme/src/runtime/RCS/unxprm.scm,v
	     Working file: unxprm.scm
	     head: 1.23
	     branch:
	     locks: strict
	     access list:
	     symbolic names:
		     RELEASE_7_1_0: 1.9
		     RELEASE_7_0_0: 1.4
	     comment leader: ";;; "
	     keyword substitution: kv
	     total revisions: 23;	selected revisions: 23
	     description:
	
	     ----------------------------
	     revision 1.23
	     date: 1993/01/12 19:01:28;  author: gjr;  state: Exp;  lines:
	+2 -5
	     Remove current-file-time, replaced by get-time.

1993-01-23 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.116): Redesign interaction between line-end
	translation and changes/undo recording.  New model suppresses
	changes and undo only for output translations, since these
	translations will be undone before the redisplay occurs.  When
	inserting a file into the buffer, it does not affect the change
	recording at all, since the translation won't exceed the boundaries
	of the inserted text, and it's desirable to notice the change of
	inserting the file in the usual way.

1993-01-20 16:03  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.47): I added the ability to use more than one
	TAGS file at one time using the command visit-additional-tags-file.
	 Still to be done is to handle included TAGS files ala Emacs 19.

1993-01-20 05:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.31): Fix fencepost error in code that places
	zero byte at end of string.

1993-01-20 05:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.30): SET-STRING-MAXIMUM-LENGTH! was locking
	interrupts with INTERRUPT-MASK/GC-OK.  Needless to say, GC is *not*
	OK during this operation.

1993-01-20 01:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/wind.scm (14.5): Change DYNAMIC-WIND (and FLUID-LET) so
	that they record the state transition *after* the "before" thunk is
	executed.  This guarantees that both the "before" and "after"
	thunks execute in the dynamic state outside of the DYNAMIC-WIND
	call.
	
	**** NB: **** The particular change I made is buggy: I only changed
	how the state transition is performed in the normal case.  If you
	throw out from the "during" thunk and then throw back in, the
	"before" thunk will be executed after its state transition is
	recorded.  In order to fix this properly, the state space structure
	must be extended to include information indicating whether the
	transition should be recorded before or after the transition thunk.

1993-01-19 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.55): Fix typo in PROMPT-FOR-CONFIRMATION
	operation on REPL mode console port.

1993-01-19 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/strout.scm (14.7): Always grow string by fixed ratio to
	guarantee constant amortized cost of insertion.

1993-01-18 12:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.114.1.2): Bump date.

1993-01-18 12:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.114.1.1): Update DOS version to match Unix
	version.

1993-01-18 11:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/strout.scm (14.6): Fix bug: write-substring was not
	growing the accumulator enough when the substring was larger than
	the size of the accumulator.

1993-01-18 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/strout.scm (14.5): Don't call APPLY with a list that
	could potentially be huge.  Instead allocate a string buffer and
	fill it; grow buffer when necessary and accept that there will be
	some memory waste.

1993-01-18 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.30): When printing error messages, put some
	large limits on the output to prevent the error message from
	causing secondary lossage.

1993-01-18 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hooks.c (9.49): Don't lose completely when second arg
	to APPLY is too long to fit in stack.

1993-01-16 00:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.300): Must run %NOTICE-WINDOW-CHANGES! when
	doing direct update so that any changes to the window are handled
	correctly.

1993-01-13 04:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.15): (DIRECTORY-PATHNAME-AS-FILE "/")
	can't represent its result properly, because null strings aren't
	allowed as pathname names.  So just return the argument in this
	case and hope for the best.

1993-01-13 03:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: random.scm (14.4), runtime.pkg (14.171): Install new
	version of RANDOM from slib1c4.

1993-01-12 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules3.scm (4.37), lapgen.scm (4.47):
	Implement calls to SET-INTERRUPT-ENABLES! by jumping to
	assembly-language hook in compiled code interface.

1993-01-12 18:31  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.17): Fix print-graphics to work with all
	windows

1993-01-12 18:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.170): Add support for handling
	end-of-file ^Z under DOS.

1993-01-12 18:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: version.scm (14.160), io.scm (14.32), fileio.scm (1.5),
	pathnm.scm (14.25), dospth.scm (1.18), unxpth.scm (14.14): Add
	support for handling end-of-file ^Z under DOS.

1993-01-12 17:06  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.23): Fix boundary error involving changes
	indexes in buffer and narrowing.

1993-01-12 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.26), runtime.pkg (14.169): Define new
	procedure X-GRAPHICS/WINDOW-ID, which returns the resource ID of
	the X window.

1993-01-12 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.45): Add new primitive X-WINDOW-ID.

1993-01-12 16:30  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* 6001/picture.scm (1.18): Fix bugs in consistent assignment of
	coordinate limits.

1993-01-12 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.16): Fix spelling error that has been
	corrected in Edwin.

1993-01-12 14:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/datime.scm (14.4): Redo time primitives to provide
	conversion between decoded and encoded times.

1993-01-12 14:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prename.h (1.7): Add CURRENT-FILE-TIME as an alias for
	ENCODED-TIME.

1993-01-12 14:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: osenv.h (1.3), prosenv.c (1.8), uxenv.c (1.9),
	dosenv.c (1.3), version.h (11.127): Redo time primitives to provide
	conversion between decoded and encoded times.

1993-01-12 14:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: msdos.h (1.4), ux.h (1.39), utabmd.scm (9.65): Add
	syscall_mktime.

1993-01-12 14:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prdosenv.c (1.10), pruxenv.c (1.14): Remove
	current-file-time.

1993-01-12 14:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.114): Import get-time.

1993-01-12 14:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: rmail.scm (1.27), sendmail.scm (1.18): Replace
	unix/current-file-time with get-time.

1993-01-12 14:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.23): Remove current-file-time, replaced by
	get-time.

1993-01-12 14:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.17): Remove current-file-time, not in use.

1993-01-12 05:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwin.scm (1.299), bufwiu.scm (1.22), bufwmc.scm (1.16),
	decls.scm (1.45), image.scm (1.130), motion.scm (1.85), undo.scm
	(1.53), utlwin.scm (1.58): Change method by which a window
	recomputes its starting point.	Old method did too much work,
	particularly in cases where the line was very long.  New method
	searches backward -- exactly once -- to start of first line that
	will appear in the window, and saves all of the resulting
	information in the window for later use.
	
	Unfortunately, there are many other problems with the algorithms
	that make them dependent on line length, and it's a lot of work to
	fix them.  To fix it write will involve rewriting the display
	update code, yet again, and I'm not in the mood for that right now.
	 However, it won't be necessary to rewrite the starting-point
	computation when that does finally happen.

1993-01-12 05:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.174): Fix two bugs in M-x recover-file.

1993-01-12 05:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rules3.scm (1.16): Calls to
	SET-INTERRUPT-ENABLES! primitive should be compiled as traps to the
	special assembly hook.	This change requires microcode 11.126.

1993-01-12 05:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.58): Disable open-coding of
	SET-INTERRUPT-ENABLES! -- it can't work without a good deal of
	hair, and in that case it's probably not desirable.

1993-01-12 05:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/mips.m4 (1.10), version.h (11.126): Add
	assembly hook to implement SET-INTERRUPT-ENABLES! primitive.

1993-01-10 05:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.126), edwin.pkg (1.113), grpops.scm (1.18),
	struct.scm (1.85): New code to grow and shrink buffers guarantees
	that the average time of inserting or deleting each character is
	bounded by a constant.	The user is given some control over this
	behavior by means of the editor variable
	BUFFER-REALLOCATION-FACTOR, which allows a space-time tradeoff
	between the average insertion/deletion time and the average load
	factor of the buffer.  BUFFER-REALLOCATION-FACTOR may be given a
	local value in a given buffer to change that buffer's allocation
	without affecting other buffers.

1993-01-10 05:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/undo.scm (1.52): Change GC undo truncation code to use
	buffer-local values of limit variables.

1993-01-10 05:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.64): Fix typo.

1993-01-10 05:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.96): Typed characters are now grouped
	properly by undo regardless of their position on the line.

1993-01-10 05:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: class.scm (1.71), clscon.scm (1.6), debuge.scm (1.50):
	Class and object data structures are now tagged as if by
	DEFINE-STRUCTURE.

1993-01-09 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.84): Add a SHRINK-LENGTH field to the group
	data structure, and change the allocation of groups to initialize
	them to a fixed minimum size.

1993-01-09 05:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.112): GAP-ALLOCATION-EXTRA no longer defined.

1993-01-09 04:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: utils.scm (1.29), fileio.scm (1.115): Define a new
	condition type that is signalled when STRING-ALLOCATE is unable to
	allocate the string due to a lack of memory.  Set up a condition
	handler for this type in the file-reading code so that the error
	message tells the user that the file is too big to fit in memory.

1993-01-09 04:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwin.scm (1.298), bufwiu.scm (1.21), intmod.scm (1.54):
	Fix several instances of SET-INTERRUPT-ENABLES! that appear in
	value position but are intended to be for effect.

1993-01-09 04:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.161), edwin.pkg (1.111), struct.scm (1.83):
	Add a SHRINK-LENGTH field to the group data structure, and change
	the allocation of groups to initialize them to a fixed minimum
	size.

1993-01-08 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.47), bufwin.scm (1.297), bufwiu.scm (1.20),
	bufwmc.scm (1.15), comred.scm (1.95), curren.scm (1.106), decls.scm
	(1.44), edtfrm.scm (1.85), edwin.pkg (1.110), fileio.scm (1.114),
	grpops.scm (1.17), image.scm (1.129), macros.scm (1.59), make.scm
	(3.77), motion.scm (1.84), struct.scm (1.82), things.scm (1.84),
	undo.scm (1.51), utils.scm (1.28): This version of Edwin requires
	microcode 11.125 or later.  It should be compiled with compiler
	version 4.97 or later, because its performance depends on several
	new compiler optimizations.
	
	* Major redesign of low-level insert and delete operations, the  
	primary aim of which is to greatly improve performance:
	
	  * Insert, delete, and move-point daemons flushed.
	
	  * Limits that track the extent of the changes to a buffer between
	    display updates are now per-buffer rather than per-window.	The
	    windows are notified of these changes at display update rather
	    than while the changes are occurring.
	
	  * Calls to the primitives STRING-ALLOCATE, SUBSTRING-MOVE-RIGHT!,
	    and SUBSTRING-MOVE-LEFT! have been replaced with calls to
	Scheme
	    procedures that perform the same functions.  These new
	procedures
	    avoid the cost of calling C code, which can be very high.  The
	    latter two procedures use heuristics to decide whether it is
	    better to call the C primitive or to do the operation in line.
	
	* The undo subsystem has been reimplemented.  The new
	implementation	 is a near-exact translation of the new undo code
	from Emacs 18.56.    The major features of this implementation are:
	unlimited undo memory	 for one undo step; significantly better
	performance; and much	 clearer implementation, reducing
	probability of bugs (the previous    implementation is known to be
	buggy).
	
	* The new implementation of STRING-ALLOCATE fixes the bug that
	caused	 the editor to go into an infinite loop when reading in a
	file that   was too large to fit in memory.
	
	* The MOVE-TO-COLUMN procedure had a problem because it was
	searching   for the end of line in order to pass it as a limit
	argument to   GROUP-COLUMN->INDEX.  In some cases, particularly
	paragraph fill,   this changed a linear algorithm to quadratic. 
	This has been fixed   by changing GROUP-COLUMN->INDEX to stop at
	end of line even if that   is not the given limit.
	
	* The DEFINE-NAMED-STRUCTURE macro has been changed to create an  
	object like those created by DEFINE-STRUCTURE, so that the printer 
	 and pretty-printer will treat them in the usual way.
	
	* The LINE-START and LINE-END procedures have been rewritten to
	make   them faster.  These procedures are used in many places in
	the editor   and must be fast.	The associated MOVE-VERTICALLY has
	been   eliminated as it's no longer used.
	
	* TRANSPOSE-THINGS has been rewritten so that it doesn't leave	
	permanent marks attached to the buffer.
	
	* HORIZONTAL-SPACE-START and HORIZONTAL-SPACE-END no longer look
	for   the nearest line limit, since that was completely
	unnecessary.  The   procedures that they call automatically stop at
	the line edge.
	
	* BOCHSER code, which was not being loaded, is now also not
	compiled   since it depended on the move-point daemons.

1993-01-08 18:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/lvalue.scm (4.20): Remove fossil?

1993-01-07 19:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/alpha/machin.scm (1.4),
	machines/bobcat/dassm2.scm (4.21), machines/bobcat/machin.scm
	(4.29), machines/i386/machin.scm (1.16), machines/mips/machin.scm
	(1.11), machines/mips/rulfix.scm (1.9), machines/mips/rulrew.scm
	(1.5), machines/spectrum/machin.scm (4.27), machines/vax/machin.scm
	(4.11), machines/vax/dassm2.scm (4.12), rtlbase/rtlty2.scm (4.11),
	rtlgen/opncod.scm (4.57), base/make.scm (4.97): Fixed bug in inline
	expander for OBJECT-TYPE?.
	
	Added inline expanders for primitives: GET-INTERRUPT-ENABLES,
	SET-INTERRUPT-ENABLES!, PRIMITIVE-GET-FREE,
	PRIMITIVE-INCREMENT-FREE, HEAP-AVAILABLE?, and SET-STRING-LENGTH!. 
	Some of these primitives are new with microcode version 11.125.
	
	For the MIPS, added support for open-coding of FIXNUM-LSH.

1993-01-07 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: sysprim.c (9.38), version.h (11.125): Added new
	primitives: PRIMITIVE-GET-FREE, PRIMITIVE-INCREMENT-FREE,
	HEAP-AVAILABLE?.

1993-01-07 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.168), rep.scm (14.29): Export REPL
	history variables needed to make new histories and install them in
	an active REPL.

1993-01-05 10:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: crstop.scm (1.12), crsend.scm (1.9): Change
	cc-vector structures to be of type vector so they can be dumped.

1993-01-04 02:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/emodel.scm (4.3): Don't allow the same name to be interned
	twice in the same block.

1993-01-02 02:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: chtype.scm (4.2), copy.scm (4.2), emodel.scm (4.2), free.scm
	(4.2), make.scm (4.26), object.scm (4.5), pardec.scm (4.7),
	reduct.scm (4.4), sf.pkg (4.8), subst.scm (4.9), tables.scm (4.2),
	toplev.scm (4.10), usiexp.scm (4.14), xform.scm (4.4): Complete
	redesign of environment model and declaration parser.  This was
	prompted by a bug that had been present since the original design;
	the bug was inherent in the design, hence the need for a redesign. 
	The new design has the following features:
	
	* The old design used a two-level environment model for the
	top-level   environment, in which imported and global bindings were
	  distinguished from top-level bindings appearing in the file.	The
	  new design uses a single top-level environment for all bindings. 
	  This is the change fixed the bug, but introduced performance	 
	problems because the two-level design had a special hack for the   
	global environment; the performance problems were fixed by:
	
	* The new design uses a hash table to hold the bindings in (the
	model	of) an environment frame when the number of bindings
	exceeds a   preset threshold.  This allows very large environment
	frames to have	 reasonable access times, while avoiding the time
	and space overhead   of the hash table for small environment
	frames; typically only a few   frames will use the hash table
	mechanism.  The hash table uses open   addressing with double
	hashing.
	
	* Because ".ext" files are internal data structures that are
	written   to a file, old ".ext" files are incompatible with the new
	scode	optimizer.  In order to prevent lossage, ".ext" files have
	a new	format, which contains a version number.  When the scode
	optimizer   encounters an old ".ext" file, or a new one with the
	wrong version	number, it will emit a warning and ignore it.
	
	* Code that supported special "error combinations" has been
	removed,   since these are no longer used.
	
	* Code that generated ".unf" files has been removed.  Since several
	  procedures with semi-public interfaces accept arguments or return
	  values relating to these files, the procedures ignore such
	arguments   and return dummy values.  The global variable SFU? has
	been   eliminated.

1992-12-30 11:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.10): Add definition compression for
	the C back end.

1992-12-30 11:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/scode.scm (4.8): Add scode/sequence?

1992-12-30 09:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (4.14), rtlgen/opncod.scm (4.56):
	Changes for the C back end.

1992-12-30 07:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/asutl.scm (1.2): Add < and expt to the set of
	back-end-specific operations.

1992-12-29 15:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.21): Some changes for the C back end.

1992-12-29 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/infnew.scm (4.9): Some changes for the C back end.

1992-12-28 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/mips/rules3.scm (1.15), base/make.scm (4.96):
	Change implementation of INVOCATION:APPLY to use the new
	shortcircuit_apply code in the microcode interface.  This change
	requires version 11.124 of the microcode.

1992-12-28 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: lapgen.scm (1.12), rulfix.scm (1.8):
	Tweak fixnum rules slightly so that previous implementation of
	logical fixnum operations will work correctly.

1992-12-28 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.55): Fix think-o in implementation
	of object-type inliner.

1992-12-28 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.22): Fix bug in code that recognizes named
	structures.  Don't integrate predicates, since compiler is unable
	to take advantage of this integration in the situations that need
	it.

1992-12-28 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/mips.m4 (1.9), version.h (11.124): Install
	shortcircuit_apply support for MIPS.

1992-12-23 13:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rulrew.scm (1.4): Fix think-o from the
	past.

1992-12-23 08:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.10): Change ".binf" to ".bci".

1992-12-23 08:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.54): Fix typo in previous change.

1992-12-22 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.21): Integrate structure predicates.

1992-12-22 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.45), sf/usiexp.scm (4.13): Define
	CALL-WITH-VALUES to be an alias for WITH-VALUES.

1992-12-21 21:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rulfix.scm (1.7): Add open-coding for
	FIXNUM-NOT, FIXNUM-AND, FIXNUM-ANDC, FIXNUM-OR, and FIXNUM-XOR.

1992-12-21 21:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/machin.scm (1.10): Add open-coding for
	FIXNUM-NOT, FIXNUM-AND, FIXNUM-ANDC, FIXNUM-OR, and FIXNUM-XOR.

1992-12-16 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.19): Change reference from UNPARSER-METHOD?
	to PROCEDURE? so that cold-load will work with interpreted code. 
	The error test this implements isn't very important anyway.

1992-12-16 07:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/reuse.scm (1.7): Fix bug.  Dependents are not
	nodes, but targets.

1992-12-16 07:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.53): Fix bug in last edit.

1992-12-16 04:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.52): Improve the open coder for
	OBJECT-TYPE?

1992-12-16 04:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/rinvex.scm (1.7): Generalize an identity from
	value-class=datum to value-class=immediate.

1992-12-16 02:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.51): Bug in object-type open
	coding!

1992-12-15 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hooks.c (9.48): Turn off stack-overflow interrupt in
	both WITHIN-CONTINUATION and CALL-WITH-CURRENT-CONTINUATION, since
	they eliminate the condition.

1992-12-15 14:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.109.1.1): Update DOS version to match Unix
	version.

1992-12-15 14:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.109): Add blank line to make comparing with
	DOS version easier.

1992-12-11 16:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dos.scm (1.6): Fix bug in finding init file.  Teach the
	edwin filename parser about ~ on DOS.

1992-12-10 23:21  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.108): Set up (EDWIN DEBUGGER) package to
	handle my (older) version of the debugger by linking some variables
	the new debugger doesn't need.

1992-12-10 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.44): Change primitives that set window
	colors to use the window's colormap instead of the display's
	default colormap.

1992-12-10 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.43): Ignore BadWindow errors generated by
	XDestroyWindow.

1992-12-09 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uproc.scm (1.6): Change record support to understand that
	a record is applicable only when its type is a record whose length
	field has been specially marked.

1992-12-09 20:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: record.scm (1.18), runtime.pkg (14.167), uproc.scm
	(1.5): Change record support to understand that a record is
	applicable only when its type is a record whose length field has
	been specially marked.

1992-12-09 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.72): Further restrict application of
	records: the type that appears in the record's zeroth slot must be
	a record whose length field is marked with TC_TRUE.  This allows a
	record to have another record be its type without having to reserve
	the application-procedure slot in all records.

1992-12-09 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.50): Add inline coding for
	OBJECT-TYPE, PRIMITIVE-OBJECT-TYPE, and PRIMITIVE-OBJECT-SET-TYPE. 
	Change coding for %RECORD-LENGTH to not assume that record length
	has type code zero.

1992-12-07 23:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/refctx.scm (1.2): DEFINE-STRUCTURE no longer allows
	NAMED to be used with an argument unless TYPE is given.

1992-12-07 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/symbol.scm (1.1): Initial revision

1992-12-07 14:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: boot.scm (14.5), defstr.scm (14.20), events.scm (14.3),
	io.scm (14.31), make.scm (14.39), packag.scm (14.12), record.scm
	(1.17), runtime.pkg (14.166), scode.scm (14.15), unpars.scm
	(14.29), version.scm (14.159): Rewrite record package and
	DEFINE-STRUCTURE macro to use the record datatype rather than
	vectors.

1992-12-07 13:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.12): Constant-fold STRING->SYMBOL.

1992-12-04 22:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: types.h (9.33), gctype.c (9.32), gccode.h (9.46):
	Finish job of defining TC_RECORD type code.

1992-12-03 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.8): Undo last change: a substring cannot
	be upper or lower case unless there is at least one character of
	that case in it.  Rewrite SUBSTRING-CAPITALIZED? to fix the bug
	properly.

1992-12-03 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.7): Undo last change: a substring cannot
	be upper or lower case unless there is at least one character of
	that case in it.  Rewrite SUBSTRING-CAPITALIZED? to fix the bug
	properly.

1992-12-03 17:03  Nick Papadakis <nick@zurich.ai.mit.edu>

	* microcode/array.h (9.33): Changed REAL_IS_DEFINED_DOUBLE to 1

1992-12-03 16:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/rulfix.scm (1.3): Upate to match changed
	interface to __divq and __remq.

1992-12-03 16:51  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/unix.scm (1.31): Made MAYBE-WRITE-ENCRYPTED-FILE depend on
	ENABLE-ENCRYPTED-FILES instead of ENABLE-COMPRESSED-FILES.

1992-12-03 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uproc.scm (1.4): Add support for RECORD objects.

1992-12-02 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/object.scm (4.4), runtime/infstr.scm (1.8), runtime/pathnm.scm
	(14.24), runtime/uenvir.scm (14.30), runtime/lambda.scm (14.10):
	Make explicitly-named structures have explicit type.

1992-12-02 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/object.scm (1.5): Make explicitly-named structures have
	explicit type.

1992-12-02 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.16): Add support for RECORD objects.

1992-12-02 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.11), runtime/record.scm (1.15),
	runtime/runtime.pkg (14.165): Add support for RECORD objects.

1992-12-02 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: record.scm (1.14), runtime.pkg (14.164), version.scm
	(14.158): Add support for RECORD objects.

1992-12-02 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.49), compiler/base/make.scm (4.95),
	sf/gconst.scm (4.15), sf/make.scm (4.25): Add support for RECORD
	objects.

1992-12-02 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/vector.c (9.36): Add support for TC_RECORD data type.

1992-12-02 13:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: vector.c (9.35), interp.c (9.71), version.h (11.123):
	Add support for TC_RECORD data type.

1992-12-02 13:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/object.h (9.40): Add support for TC_RECORD data type.

1992-12-02 13:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.57): Fix fencepost error in paragraph fill.

1992-12-01 17:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/rulfix.scm (1.2): Fix unbound variable.

1992-12-01 17:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/compiler.pkg (1.5): Missed edit.

1992-12-01 09:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dabbrev.scm (1.3): replace-match has its second argument
	negated in Edwin when compared to GNU Emacs.

1992-12-01 09:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/string.scm (14.6): Change the definition of
	substring-lower-case? and substring-upper-case? so that strings
	with no upper (lower) case characters match.  The previous
	definition required at least one lower (upper) case character. 
	Thus the empty string (or a string with only non-alphabetic
	characters) is both lower and upper case, while it was previously
	neither.

1992-12-01 09:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.63): Switch the order of the capitalized and
	uppercased tests in replace-match.  It only makes a difference on
	strings of length 1, in which case it preferes to capitalize.

1992-12-01 09:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dabbrev.scm (1.2): Fix case replacement decision.

1992-11-30 14:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.42): Allow X primitives to accept
	nonnegative integers as pixel values.

1992-11-29 22:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.52): Fix missing type in header for
	bit_string_set.

1992-11-29 22:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.51): Add bit_string_set and extern
	allocate_bit_string and clear_bit_string for the C back end.

1992-11-29 15:22  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.156): Fixed bug in prompt-for-password.

1992-11-29 09:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: scan.scm (14.5), syntax.scm (14.19), uenvir.scm
	(14.29): Fix references to string->symbol in loading sequence to
	use the primitive.

1992-11-29 09:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: lambda.scm (14.9), packag.scm (14.11), pathnm.scm
	(14.23), record.scm (1.13): Fix references to string->symbol in
	loading sequence to use the primitive.

1992-11-29 09:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: debug.scm (14.32), defstr.scm (14.19), infstr.scm
	(1.7): Fix references to string->symbol in loading sequence to use
	the primitive.

1992-11-25 01:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.107.1.1): Update DOS version to match Unix
	version 1.107.

1992-11-25 01:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/contin.scm (14.7): Fix CALL-WITH-CURRENT-CONTINUATION to
	be tail-recursive.

1992-11-25 01:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hooks.c (9.47): Fix CALL-WITH-CURRENT-CONTINUATION to
	be tail-recursive.  Improve WITHIN-CONTROL-POINT to delay copying
	the stack.

1992-11-25 00:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.37): GCC version 2.2.2 uses
	non-closure function pointers.

1992-11-24 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.27): Can't use set-variable-default-value!
	during editor startup.

1992-11-24 19:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.135): Fix unused variable warning.

1992-11-24 18:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/xdebug.c (9.31): Update to match new interface to
	find_symbol.

1992-11-24 18:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/intern.c (9.53): Change the interface to find_symbol to
	allow char pointers to be looked up in the obarray, thus there is
	no need to cons if there is already a symbol by the name being
	checked.

1992-11-24 18:03  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/sort.scm (1.6): Replace mark-temporary-right-inserting-copy
	with mark-temporary-copy.

1992-11-24 17:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.107): Add several commands:
	rcs-ci-locked-files, rcs-list-locked-files, rcs-diff, and rcs-log. 
	Also add new variable rcs-append-output, which controls what
	happens to output to previous rcs commands when a new one is
	executed.

1992-11-24 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.26): Add variable shell-file-name and
	initialize it properly.

1992-11-23 23:28  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/sort.scm (1.5): Better solution to previous fix.

1992-11-23 23:03  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/sort.scm (1.4): Fix bug that makes sort commands sometimes
	duplicate the text in the sorted region.

1992-11-23 20:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/savres.scm (14.27): Close interrupt window in
	disk-restore:  The continuation dumped must have no interrupts
	enabled until after it resets the fixed objects vector (containing
	the interrupt-handlers vector).

1992-11-23 20:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.67): Close interrupt window.
	
	CScheme dumps an Scode combination whose operator is the
	continuation object.
	
	On restore, it checks for interrupts at the apply point, and if an
	interrupt is taken, the fixed objects vector (containing the
	interrupt-handlers vector) is invalid because it has not been set
	yet.

1992-11-23 20:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utils.c (9.55): Setup_Interrupt is now careful to make
	sure that there is a valid interrupt vector.

1992-11-23 16:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.21): Fix bug in last edit --
	DEFINE-VARIABLE-LOCAL-VALUE! is not a macro.

1992-11-22 23:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.15): ``i'' response to interactive
	interrupt handler clears the hard attention counter.

1992-11-22 23:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.14): Fix typo.

1992-11-22 23:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosconio.c (1.9): Add interrupt flag to console_read to
	prevent infinite loop in interactive interrupt handler.

1992-11-22 23:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosio.c (1.3): Add interrupt flag to dos_read to
	prevent infinite loop in interactive interrupt handler.

1992-11-22 23:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.13): Some changes to be able to disable
	interrupts by using appropriate environment variables.

1992-11-22 23:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/doskbd.c (1.12): Conditionalize x32 keyboard according
	to environment variable.

1992-11-22 23:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dostrap.c (1.3): Print trapping pc and sp if there is
	no handler in an attempt to find out what's happening with the
	spurious traps at boot time.

1992-11-22 23:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.75): Disable interrupts at boot time.

1992-11-22 18:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/rename.scm (1.6): Test availability before exporting names.

1992-11-22 12:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.20): Update to match new define-major-mode

1992-11-22 10:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.106.1.1): Update to version 1.106.

1992-11-20 14:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/advice.scm (14.11): Eliminate constant Scode object from
	compiled file.

1992-11-20 14:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.106): Fix typo.

1992-11-20 14:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sort.scm (1.3): Fix typo.

1992-11-20 14:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.105), xcom.scm (1.10), xterm.scm (1.37):
	Don't update window and icon names unless they have changed.

1992-11-20 14:00  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.26): Fixed a bug in rmail-cease-edit

1992-11-20 13:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.104), xcom.scm (1.9), xterm.scm (1.36):
	Don't update window and icon names unless they have changed.

1992-11-20 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sort.scm (1.2): Fix two bugs.  Discard permanent marks when
	no longer needed.  Repaginate.

1992-11-20 10:35  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/dired.scm (1.134): Made dired-encrypt-file use
	prompt-for-confirmed-password

1992-11-20 08:49  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/dired.scm (1.133): Updated mode help string.

1992-11-19 22:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.56): Add CC_BLOCK_ENTRY_DISTANCE for the C
	back end.

1992-11-18 18:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.30), edwin.ldr (1.38): Move load of krypt
	option to "edwin.ldr".

1992-11-18 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.30): Change syntax definitions of brackets
	and braces, to make them act like parentheses.

1992-11-18 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.29): When summary buffer is killed, delete
	pointer from RMAIL buffer to summary buffer.

1992-11-18 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.25): Fix bug in INSERT-INBOX-TEXT: when inbox
	was empty, random newline was inserted.

1992-11-18 00:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.55): Conditionalize according to
	CMPINT_USE_STRUCS.  The new version (not using strucs) does not
	need interface_to_scheme and interface_to_C, which makes it easier
	to write.

1992-11-18 00:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/alpha.h (1.4): #define CMPINT_USE_STRUCS until
	cmpaux-alpha.m4 is updated.

1992-11-18 00:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/vax.h (1.7): #define CMPINT_USE_STRUCS until
	cmpaux-vax.m4 is updated.

1992-11-18 00:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: i386.h (1.20), mips.h (1.17): #define
	CMPINT_USE_STRUCS until cmpaux-i386.m4 is updated.

1992-11-17 23:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: hppa.h (1.35), mc68k.h (1.33), hppa.h
	(1.36): #define CMPINT_USE_STRUCS until cmpaux-hppa.m4 is updated.

1992-11-17 22:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.34): Fix typo in last edit.

1992-11-17 22:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: alpha/decls.scm (1.3), vax/decls.scm (4.10),
	vax/machin.scm (4.10), vax/compiler.pkg (1.15): Move some
	back-end-dependent stuff to back/asutl.  The C back end has its own
	replacement.

1992-11-17 22:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: i386/compiler.pkg (1.14), i386/decls.scm
	(1.4), mips/decls.scm (1.7), mips/compiler.pkg (1.12),
	mips/machin.scm (1.9), alpha/machin.scm (1.3), alpha/compiler.pkg
	(1.4): Move some back-end-dependent stuff to back/asutl.  The C
	back end has its own replacement.

1992-11-17 22:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/compiler.pkg (1.42), bobcat/decls.scm
	(4.33), bobcat/machin.scm (4.28), i386/machin.scm (1.15): Move some
	back-end-dependent stuff to back/asutl.  The C back end has its own
	replacement.

1992-11-17 19:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/asutl.scm (1.1): Initial revision

1992-11-17 19:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/spectrum/decls.scm (4.32),
	machines/spectrum/compiler.pkg (1.40), machines/spectrum/machin.scm
	(4.26), rtlgen/rgrval.scm (4.20), rtlgen/opncod.scm (4.48),
	rtlbase/rtlcon.scm (4.24), rtlbase/rtlty2.scm (4.10): Move some
	back-end-dependent stuff to back/asutl.  The C back end has its own
	replacement.

1992-11-17 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.76): Install Matt Birkholz's changes.

1992-11-17 17:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.41): Don't allow minor modes to be set in
	prompt-for-expression mode.

1992-11-17 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.103): Add M-x dabbrev-expand.

1992-11-17 17:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.143): Add M-x dabbrev-expand.

1992-11-17 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.43), edwin.ldr (1.37): Add M-x
	dabbrev-expand.

1992-11-17 17:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dabbrev.scm (1.1): Initial revision

1992-11-17 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/macros.scm (1.58): Add description to output of
	DEFINE-NAMED-STRUCTURE so that PP knows how to print out these
	structures in a useful way.

1992-11-17 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.160): Change SET-BUFFER-MAJOR-MODE! so it
	doesn't reset the buffer's alist.  Instead, the alist is only reset
	when the buffer is reset.  Buffer properties now differ from
	buffer-local variables in that they survive a mode change.

1992-11-17 12:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tximod.scm (1.18): Fixes to last set of changes.

1992-11-17 12:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: rmailsum.scm (1.28), schmod.scm (1.29), sendmail.scm
	(1.17), shell.scm (1.11), telnet.scm (1.8), texcom.scm (1.38):
	Fixes to last set of changes.

1992-11-17 12:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.24): Fixes to last set of changes.

1992-11-17 12:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.114), info.scm (1.115), intmod.scm (1.53),
	midas.scm (1.17), pasmod.scm (1.46): Fixes to last set of changes.

1992-11-17 12:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: c-mode.scm (1.50), comint.scm (1.18), dired.scm (1.132),
	bufmnu.scm (1.124), c-mode.scm (1.51): Fixes to last set of
	changes.

1992-11-17 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.17): Fixes to last set of changes.

1992-11-17 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.159), filcom.scm (1.173), schmod.scm
	(1.28), texcom.scm (1.37): Fixes to last set of changes.

1992-11-16 17:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.158), bufmnu.scm (1.123), c-mode.scm
	(1.49), comint.scm (1.16), compile.scm (1.2), dired.scm (1.131),
	evlcom.scm (1.40), filcom.scm (1.172), fileio.scm (1.113), info.scm
	(1.113), intmod.scm (1.52), macros.scm (1.57), midas.scm (1.16),
	pasmod.scm (1.45), rmail.scm (1.23), rmailsum.scm (1.27),
	schmod.scm (1.27), sendmail.scm (1.16), shell.scm (1.10),
	telnet.scm (1.7), texcom.scm (1.36), tximod.scm (1.17): Change
	MODE-INITIALIZATION (for both major and minor modes) to accept the
	buffer as its argument; previously mode initializations had no
	arguments.  Rewrite all mode initializations to be lambda
	expressions with explicit bindings for the buffer argument. 
	Eliminate notion of BUFFER-INITIALIZATIONS -- buffer's mode is now
	set immediately when SET-BUFFER-MAJOR-MODE! or
	SET-BUFFER-MINOR-MODE! is called.
	
	---> NOTE WELL!!! <---
	
	All mode hooks have been changed to take the buffer as an argument
	-- this is an incompatible change that will affect anyone who uses
	a mode hook in their initialization file.

1992-11-16 16:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dired.scm (1.130): Move load-option from top-level to
	inside the encryption/decryption command.  In this way krypt is
	only loaded when first accessed, and not at edwin load time.

1992-11-16 11:39  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/dired.scm (1.129): Added dired-krypt -- encrypts and
	decrypts files using krypt.scm.

1992-11-15 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.171), fileio.scm (1.112), rmail.scm (1.22):
	Redesign AFTER-FIND-FILE and related procedures to be more like GNU
	Emacs.	Implement M-x recover-file.

1992-11-14 12:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: i386/compiler.pkg (1.13), mips/compiler.pkg
	(1.11), vax/compiler.pkg (1.14), alpha/compiler.pkg (1.3): Add hook
	for C back end so that generated labels are legal C labels.

1992-11-14 12:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/utils.scm (4.18), base/asstop.scm (1.3),
	machines/spectrum/compiler.pkg (1.39), machines/bobcat/compiler.pkg
	(1.41): Add hook for C back end so that generated labels are legal
	C labels.

1992-11-13 20:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.114): Fix typo in previous change.

1992-11-13 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.113): Add optional argument to pop-up-buffer,
	which disables use of current window.

1992-11-13 17:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.29), dos.scm (1.5), fileio.scm (1.111): Make
	backup-by-copying of symbolic link be dependent on a variable.

1992-11-13 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: syntax.scm (1.76), modefs.scm (1.142): Add M-x
	describe-syntax.

1992-11-13 17:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: manual.scm (1.11), loadef.scm (1.19): Add variable
	manual-command to override the manual program name.

1992-11-13 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.105): Change list of help commands to include
	describe-syntax.

1992-11-13 17:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.56): Redefine AUTO-FILL-BREAK? to use Emacs
	definition.

1992-11-13 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.105): Change setting of buffer-point to
	conform to Emacs.

1992-11-13 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.15): Add M-x comint-send-invisible and M-x
	comint-send-char.

1992-11-13 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufmnu.scm (1.122): Add buffer-menu-mode-hook, and set
	truncate-lines true in buffer-menu buffers.

1992-11-12 14:36  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/: rmailsrt.scm (1.8), rmail.scm (1.21), rmailsum.scm
	(1.26): writeable -> writable

1992-11-12 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.99), buffer.scm (1.157), bufmnu.scm
	(1.121), debuge.scm (1.49), dired.scm (1.128), evlcom.scm (1.39),
	filcom.scm (1.170), fileio.scm (1.110), info.scm (1.112),
	modlin.scm (1.15), struct.scm (1.81), techinfo.scm (1.3): Fix
	spelling: "writeable" -> "writable".

1992-11-11 22:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.163), savres.scm (14.26), usrint.scm
	(1.3): Fix bug in disk-save/disk-restore by which bands dumped from
	emacs were not restartable.

1992-11-11 14:11  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.25): Fixed a bug in
	rmail-make-basic-summary-line.

1992-11-09 22:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.64): Do not set
	MICROCODE-TERMINATION-PROCEDURES slot of fixed objects vector in
	this file; the runtime system will take care of it.  This was a
	problem because the existing termination procedures were being
	erased at DISK-RESTORE.

1992-11-09 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debuge.scm (1.48): Disregard minibuffers in
	SAVE-EDITOR-FILES.

1992-11-09 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debuge.scm (1.47): Fix two bugs in SAVE-EDITOR-FILES.

1992-11-09 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debuge.scm (1.46): Fix two bugs in SAVE-EDITOR-FILES.

1992-11-09 13:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/rules4.scm (1.2): Add label argument to
	all interpreter calls for the C back-end.

1992-11-09 13:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/rules4.scm (4.13), i386/rules4.scm
	(1.7), vax/rules4.scm (4.4), mips/rules4.scm (1.3): Add label
	argument to all interpreter calls for the C back-end.

1992-11-09 13:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/spectrum/rules4.scm (4.12),
	rtlbase/rtlty1.scm (4.20), rtlbase/rtlcon.scm (4.23),
	rtlgen/rtlgen.scm (4.29), rtlgen/rgrval.scm (4.19),
	rtlgen/rgproc.scm (4.13), rtlgen/rgstmt.scm (4.16): Add label
	argument to all interpreter calls for the C back-end.

1992-11-09 13:32  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.24): Changed the way summary lines are
	constructed.  Use the first 25 characters of the extracted-name,
	not the last 25 characters.

1992-11-08 13:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/global.scm (14.44): Allow (cd)

1992-11-07 23:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/scode.scm (14.14): Re-define string->symbol.	The new
	version now copies the string if the symbol is being interned for
	the first time.  In this way string mutation of the string does not
	affect the symbol.

1992-11-07 23:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/gconst.scm (4.14): Remove string->symbol from integrable
	primitives list.  The runtime system version now copies the string
	if the symbol is being interned for the first time.  In this way
	string mutation of the string does not affect the symbol.

1992-11-07 23:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: vax/machin.scm (4.9), mips/machin.scm (1.8),
	i386/machin.scm (1.14), alpha/machin.scm (1.2): Conditionalization
	for the C back end.

1992-11-07 23:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlgen/rgrval.scm (4.18), machines/spectrum/machin.scm
	(4.25), machines/bobcat/machin.scm (4.27): Conditionalization for
	the C back end.

1992-11-06 19:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.102.1.1): Add sort to match the Unix version.

1992-11-06 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/compiler.pkg (1.10): Export variables
	controlling debugging info generation to global env.

1992-11-06 10:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/subst.scm (4.8): Fix bug in last set of changes.

1992-11-05 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.18): Add SORT library (from arthur).

1992-11-05 15:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.5): Eliminate references to obsolete
	primitives.  Eliminate references to MAPCAN.

1992-11-05 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.17), print.scm (1.12): Add new editor
	variable LPR-PROCEDURE to allow complete customization of the
	printing method.

1992-11-05 11:41  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.20): Fixed rmail-cease-edit to remove the
	cached summary line (in the message headers).  Forces rmail-summary
	mode to recalc the summary line next time it is needed.  Thus, if
	you now edit the Subject: line of a message, the summary line will
	change to reflect this.

1992-11-04 19:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.162): New version of apply.  conversion
	to pathname objects during a directory-read operation no longer
	attemps to expand environment variables, etc.

1992-11-04 05:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: make.scm (4.24), object.scm (4.3), pardec.scm (4.6),
	reduct.scm (4.3), sf.pkg (4.7), subst.scm (4.7), toplev.scm (4.9),
	usiexp.scm (4.10): Fix bugs in the implementation of
	REDUCE-OPERATOR and extend capabilities so that all the
	optimizations performed by USUAL-INTEGRATIONS can be expressed as
	declarations.

1992-11-03 19:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.54): Fix back-out problem in compiled
	APPLY.

1992-11-03 17:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.157): Provide a new, faster version of
	apply.	Prevent directory expansion while reading directories.

1992-11-03 17:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: dosdir.scm (1.6), dospth.scm (1.17), unxpth.scm
	(14.13), unxdir.scm (14.10): Prevent directory expansion while
	reading directories.

1992-11-03 17:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.16): Eliminate a warning from SF.

1992-11-03 17:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: global.scm (14.43), make.scm (14.38), error.scm
	(14.32), parse.scm (14.19), syntax.scm (14.18), uerror.scm (14.34),
	unsyn.scm (14.13): Provide a new, faster version of apply.

1992-11-03 17:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/apply.scm (1.1): Initial revision

1992-11-03 12:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.24): Recode fixnum_remainder
	because the FREM instruction has always been emulated and has been
	dropped from the architecture.

1992-11-01 02:12  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: ed-ffi.scm (1.28), edwin.pkg (1.102), decls.scm (1.42):
	Add new sorting package.

1992-11-01 02:11  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/sort.scm (1.1): Initial revision

1992-10-31 18:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.55): Declare expt as an int instead of
	long so that frexp won't complain.

1992-10-31 18:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.23): Fix bug in remainder.  FPREM
	can return negative values for positive arguments since it is
	defined as follows:
	
	FPREM (x, y) = x - (n * y)
	
	where n is the nearest integer to x/y and thus n*y can have an
	absolute value greater than x.

1992-10-29 19:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/unix.scm (1.28): Comment out buffer auto-save disabling
	that doesn't work anyway because we (CPH and Arthur) don't know how
	to fix it.

1992-10-27 16:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.122), cmpint.c (1.53), hooks.c (9.46):
	Add a mechanism for primitives to apply compiled procedures without
	aborting to the interpreter (canonicalizing context).

1992-10-26 20:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.52): Teach comutil_apply about arity
	dispatchers.

1992-10-26 20:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.70): Teach internal_apply about arity
	dispatchers.

1992-10-26 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/telnet.scm (1.6): Initialize process-filter in M-x telnet
	rather than in the mode initialization for telnet mode.  Previously
	there was no guarantee that the process was started by the time the
	mode initialization was performed.

1992-10-24 17:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.17): The separator in labels is not a
	constant.

1992-10-24 12:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/toplev.scm (4.47), base/asstop.scm (1.2),
	back/lapgn1.scm (4.13), back/lapgn3.scm (4.11): Move a few things
	around to accomodate the C back end.

1992-10-20 20:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prename.h (1.6): Eliminate old alias.

1992-10-20 20:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxfs.c (1.9), osfs.h (1.6), dosfs.c (1.4), prosfs.c
	(1.11): Eliminate fossil primitives.

1992-10-20 20:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.33): Eliminate fossil primitives.

1992-10-20 20:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxenv.c (1.8), pruxenv.c (1.13): Eliminate extra
	indirection.

1992-10-20 20:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prdosenv.c (1.9): Eliminate extra indirection.

1992-10-20 20:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prdosenv.c (1.8), dosenv.c (1.2): Move various
	primitives from prosenv.c to pruxenv.c and prdosenv.c .

1992-10-20 19:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: osenv.h (1.2), pruxenv.c (1.12), prosenv.c (1.7):
	Move various primitives from prosenv.c to pruxenv.c and prdosenv.c
	.

1992-10-20 17:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.36): Make ->environment not fail when the file
	will not be loaded.

1992-10-20 16:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.101.1.1): Re-arrange some stuff to make the
	DOS load smaller.

1992-10-20 16:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/macros.scm (1.56): Change definition of define-command so
	commands can share descriptions.

1992-10-20 16:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/xmodef.scm (1.1): Initial revision

1992-10-20 16:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.101), edwin.ldr (1.35), make.scm (3.75),
	decls.scm (1.41), calias.scm (1.14), modefs.scm (1.141): Re-arrange
	some stuff to make the DOS load smaller.

1992-10-20 11:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/bios.scm (1.3): Microcode Initialize only sets internal
	variables, and exit only clears them.  Neither does any screen
	operations.
	
	Change the console driver in Edwin to accomodate the microcode
	changes.

1992-10-20 11:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosint10.c (1.7): Initialize only sets internal
	variables, and exit only clears them.  Neither does any screen
	operations.

1992-10-20 11:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosint10.c (1.6): Fix bug in background color handling.
	 The attributes were not being constructed correctly.

1992-10-19 16:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: mips/decls.scm (1.6), bobcat/decls.scm
	(4.32), vax/decls.scm (4.9), i386/decls.scm (1.3), alpha/decls.scm
	(1.2), mips/compiler.pkg (1.9), vax/compiler.pkg (1.13),
	i386/compiler.pkg (1.12), alpha/compiler.pkg (1.2): Split toplev
	and move a couple of things around to make integration of the C
	back end, and other back ends that use native post-processing,
	easier.

1992-10-19 15:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.94): Split toplev and move a couple of
	things around to make integration of the C back end, and other back
	ends that use native post-processing, easier.

1992-10-19 15:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.pkg (1.38),
	spectrum/decls.scm (4.31), bobcat/compiler.pkg (1.40),
	bobcat/decls.scm (4.31): Split toplev and move a couple of things
	around to make integration of the C back end, and other back ends
	that use native post-processing, easier.

1992-10-19 15:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/: linear.scm (4.15), lapgn3.scm (4.10): Move
	set-current-branches! from lapgn3.scm to linear.scm.

1992-10-19 15:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.46): Split toplev.scm into two
	pieces:    toplev.scm	   asstop.scm
	
	toplev includes all the top level codes and all the structure
	through lap linearization.
	
	asstop contains the assembler and linker top-level.
	
	This allows an alternate back end (e.g. C, or one that uses the
	machine's native assembler) to be substituted.

1992-10-19 15:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/asstop.scm (1.1): Initial revision

1992-10-19 15:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/crstop.scm (1.11): Move last reference to
	base/macros.scm .

1992-10-19 15:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.12): Move last reference here.

1992-10-17 19:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/basic.scm (1.125): QUIT not yet implemented under DOS.

1992-10-17 19:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/bios.scm (1.2): Use bios:initialize! instead of
	bios:enter!, with environment variable lookup done in Scheme.
	
	Flush bios:discard!
	
	Make SF happy.

1992-10-17 19:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/doskbd.c (1.11): Do not install keyboard hooks if the
	standard input is not the keyboard.

1992-10-17 18:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosint10.c (1.5): Add range-checking to
	bios:INITIALIZE!

1992-10-17 18:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.11): Use
	set-environment-variable-default! instead of an event receiver.  In
	this way the order is guaranteed to be correct.

1992-10-17 18:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.15): Add definition of
	set-environment-variable-default!

1992-10-17 18:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.37): Reorder initialization so that
	environment variables are reset before the command line is
	processed.

1992-10-17 18:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosint10.c (1.4), dosint10.h (1.2): Get rid of
	environment variables in the microcode.

1992-10-17 16:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.37): Flush set-run-light! -- It has not
	been used in a while.

1992-10-15 13:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/rules3.scm (1.3): Add stack checking code
	to closures (they do not use interrupt-check).

1992-10-15 12:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/lapgen.scm (1.2): Add definition of
	reg:stack-guard.

1992-10-15 12:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/rules3.scm (1.2): Update interrupt-check
	to avoid generating stack checks when entering continuations and
	leaf procedures.

1992-10-15 12:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.11): Update interrupt-check
	to avoid generating stack checks when entering continuations and
	leaf procedures.

1992-10-15 12:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.24): Update interrupt-check
	to avoid generating stack checks when entering continuations and
	leaf procedures.

1992-10-12 16:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosx32.c (1.5): Make X32_DPMI_system raise the global
	interrupt on return, in case an interrupt was missed while the
	handler was disabled.

1992-10-08 14:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.16): Add hook/dos/end-of-line-string. 
	Allow empty string as the first component of an absolute pathname
	to kludge shared network file systems.

1992-10-08 14:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.14): Change definitions of
	dos/user-home-directory and dos/current-user-name not to signal an
	error.	In this way, restarting scheme won't fail if the
	environment variables are not set.

1992-10-07 02:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosconio.c (1.8), dosexcp.c (1.5), dosinsn.h (1.2),
	dosint10.c (1.3), dosio.c (1.2), doskbd.c (1.10), dossig.c (1.12),
	dossys.c (1.4), dossys.h (1.2), dostty.c (1.3), dosx32.c (1.4),
	msdos.h (1.3): Remove unused DOS code.	Clean up some interrupt
	code.

1992-10-06 21:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/make.scm (1.3): Stack checks are disabled
	on the 386 by default because they are not needed under
	DPMI/Windows.

1992-10-01 21:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prdosenv.c (1.7): Flush spurious primitives.

1992-10-01 21:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.13): Get rid of uses of spurious
	primitives.

1992-10-01 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prdosenv.c (1.6): Add missing call to long_to_integer.

1992-10-01 14:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prdosenv.c (1.5), dosx32.c (1.3): Add rudimentary
	(synchronous) subprocesses.

1992-10-01 11:55  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.98): Fix bug that made SWITCH-TO-BUFFER,
	SWITCH-TO-BUFFER-OTHER-WINDOW, and SWITCH-TO-BUFFER-OTHER-SCREEN
	prompt with the current buffer as default instead of the previous
	buffer.

1992-09-30 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.44): Fix typo.

1992-09-30 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/switch.scm (4.20), machines/mips/rules3.scm
	(1.14), machines/bobcat/rules3.scm (4.36): Turn on
	COMPILER:GENERATE-STACK-CHECKS? by default.

1992-09-30 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/rtlgen.scm (4.28), base/make.scm (4.93): Tweak
	definition of RTL-PROCEDURE/STACK-LEAF? to be true only when the
	procedure pushes a continuation, and to consider inline-coded
	descendant procedures as part of the ancestor.

1992-09-30 15:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prdosenv.c (1.4): Add system under X32 but not DPMI
	(does not interact well with the Scheme timer interrupt).

1992-09-30 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.37): Don't generate
	stack checks for continuations or for procedures that have
	STACK-LEAF? true.

1992-09-30 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlobj.scm (4.10), rtlgen/rtlgen.scm (4.27):
	Add STACK-LEAF? element to RTL procedure objects.  This element, if
	true, says that the procedure does not push any stack frames.

1992-09-30 14:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.11): Adjust presentation appearance.

1992-09-30 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.10): Confirm before deleting any files from
	floppy disk.

1992-09-30 14:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.15): Use SELECT-BUFFER-NOT-FOUND-HOOKS to
	change behavior of C-x b so that it always creates buffers that are
	associated with files.

1992-09-30 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.97): Fix definition of
	SELECT-BUFFER-NOT-FOUND-HOOKS so that the procedures in it must
	return either a buffer or #F.

1992-09-30 13:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: modefs.scm (1.140), fileio.scm (1.109): Make
	PATHNAME-DEFAULT-MODE public, so that it can be used to set the
	mode of a buffer based on its name rather than its pathname.  Add
	new editor variable AUTO-MODE-ALIST with same semantics as in GNU
	Emacs; this new variable overrides FILE-TYPE-TO-MAJOR-MODE.

1992-09-30 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.96): Fix sense of SELECT-BUFFER-CREATE.

1992-09-30 10:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.11): Cast Stack_Guard before passing it to
	DPMI_alloc_scheme_stack.

1992-09-30 09:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/numint.scm (1.3): Change invocations of utilities from
	arith to include the names of procedures.

1992-09-30 00:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dos.scm (1.4): Eliminate spurious variable binding.

1992-09-29 23:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/doskbutl.asm (1.6): Improve the real-mode keyboard
	interrupt handler to eliminate some jumps.

1992-09-29 22:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.30): Bump 386 SMALL_CONSTANT and
	EDWIN_CONSTANT by 5.

1992-09-29 22:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.169): Change read-buffer-interactive to
	invoke find-file-not-found-hooks if the file is not found (but not
	if the file is not readable).
	
	Previously it was not being invoked at all because of the way that
	it and read-buffer work.

1992-09-29 21:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.95): Add editor variable
	SELECT-BUFFER-NOT-FOUND-HOOKS to permit customization of
	PROMPT-FOR-BUFFER when the user selects a non-existent buffer.

1992-09-29 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.51): Use MAJOR-MODE-LOCKED feature to prevent
	users from frobbing the major mode of a REPL buffer. 
	Conditionalize this feature by the editor variable
	REPL-MODE-LOCKED, normally enabled.

1992-09-29 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.156), bufcom.scm (1.94): Add
	MAJOR-MODE-LOCKED feature.

1992-09-28 12:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.35): Reimplement in-line
	combined stack and interrupt check, now that microcode will support
	it properly.

1992-09-28 12:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.36): Eliminate an
	additional instruction in the in-line combined stack and interrupt
	check; total is now four instructions.

1992-09-26 12:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.15): Allow UNSPECIFIC as a directory
	specifier.  That way we can construct pathnames for DOS devices
	(e.g. NUL, CON, etc.)

1992-09-26 11:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.35): Tighten up the code
	sequence for the combined interrupt and stack check.  New sequence
	is same number of instructions, but eliminates a load-delay
	interlock.  Sequence can perhaps be shortened by one additional
	instruction.

1992-09-26 11:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rules3.scm (1.13): Tighten up the code
	sequence for the combined interrupt and stack check.  New sequence
	is 6 instructions rather than former 8.

1992-09-26 11:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/arith.scm (1.3): Don't refer to COMPLEX:COMPLEX? here -- use
	NUMBER? instead.

1992-09-26 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.34): The microcode no
	longer knows how many bytes the interrupt-check sequence is, so
	allow in-line stack checks again.

1992-09-25 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.77): Add conditional to allow this file to
	be included multiple times.

1992-09-25 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.76): Add conditional to allow this file to
	be included multiple times.

1992-09-25 23:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.51): Change
	`(Registers[REGBLOCK_STACK_GUARD])' to be a cache for the C
	variable `Stack_Guard'.  Change COMPILER_SETUP_INTERRUPT so that
	compiled code doesn't signal GC or stack-overflow interrupts when
	the corresponding interrupt enable bit is not set.  Change
	compiled-code interface to assume this, and eliminate back-out
	code; this eliminates the _SKIPPED_CHECK_OFFSET constants built
	into the microcode, allowing the compiled code more coding
	flexibility.

1992-09-25 22:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpintmd/alpha.h (1.3), cmpintmd/hppa.h (1.34),
	cmpintmd/i386.h (1.19), cmpintmd/mc68k.h (1.32), cmpintmd/mips.h
	(1.16), cmpintmd/vax.h (1.6), cmpint.c (1.50), default.h (9.39),
	dossig.c (1.10), extern.h (9.49), gc.h (9.32), interp.c (9.69),
	interp.h (9.36), intrpt.h (1.11), stack.h (9.33), storage.c (9.52),
	utils.c (9.54), version.h (11.121): Change
	`(Registers[REGBLOCK_STACK_GUARD])' to be a cache for the C
	variable `Stack_Guard'.  Change COMPILER_SETUP_INTERRUPT so that
	compiled code doesn't signal GC or stack-overflow interrupts when
	the corresponding interrupt enable bit is not set.  Change
	compiled-code interface to assume this, and eliminate back-out
	code; this eliminates the _SKIPPED_CHECK_OFFSET constants built
	into the microcode, allowing the compiled code more coding
	flexibility.

1992-09-25 22:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: wsize.c (9.32), gctype.c (9.31), option.c (1.29),
	config.h (9.75): Move definitions of TYPE_CODE_LENGTH and
	HAS_COMPILER_SUPPORT out of the command line and into "config.h"

1992-09-25 17:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosxcutl.asm (1.7): Add critical-error handling outside
	of DPMI (Windows).

1992-09-25 17:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.9): Add critical-error handling outside of
	DPMI (Windows).

1992-09-24 21:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.8): Work around bug in X32 by which it
	swaps ss if it is not what it expected when a trap occurs.
	
	We now use DPMI exceptions directly under DPMI rather than X32
	exceptions.

1992-09-24 21:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosxcutl.asm (1.6): Remove unnecessary segment
	overrides.

1992-09-24 21:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.20),
	compiler/machines/bobcat/lapgen.scm (4.46),
	compiler/machines/bobcat/rules3.scm (4.34),
	microcode/cmpintmd/mc68k.h (1.31), microcode/cmpauxmd/mc68k.m4
	(1.23): Implement close-coded stack and interrupt check.

1992-09-24 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.14): Override DEFAULT-HOMEDIR-DIRECTORY to be
	the "work" directory so that buffers with no natural directory end
	up being in a reasonable place.

1992-09-24 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: paths.scm (1.13), sendmail.scm (1.15), hlpcom.scm
	(1.104): Add binding of DEFAULT-HOMEDIR-PATHNAME to allow 6.001 to
	override the default "home" directory.

1992-09-24 18:13  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsrt.scm (1.7): more bug fixes; prevented
	rmail-sort-messages from keeping multiple strings with message text
	around; improved date handling

1992-09-24 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.39): Export variables
	controlling generation of debugging info files.

1992-09-24 16:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.9): Bypass use of shell for DOS file commands.
	 This obviates the need for quoting.

1992-09-24 14:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.100.1.1): Update version that uses the old
	debugger to match version 1.100.

1992-09-24 14:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.8): Quote unusual characters in filenames that
	are passed to the shell.

1992-09-23 21:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: primutl.c (9.58), primutl.c (9.59): Change typing of
	procedure to match arguments that are normally passed to it.

1992-09-23 21:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.74), dosconio.c (1.7): Use incorrect typing
	of references to `make_primitive' to eliminate warning messages.

1992-09-23 21:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/oscond.h (1.12): Add conditionalization that works with
	ANSI cpp when `unix' isn't defined.

1992-09-23 19:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.40), edwin.pkg (1.100), edwin.ldr (1.34):
	Split dired and comint into system-independent and system-dependent
	portions.  This eliminates the need for most process stubs under
	DOS.

1992-09-23 19:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.27), dos.scm (1.3): Move dired
	system-dependent stuff elsewhere (dos.scm, unix.scm, dirunx.scm).

1992-09-23 19:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dired.scm (1.127): Move system-dependent stuff elsewhere
	(dos.scm, unix.scm, dirunx.scm).

1992-09-23 19:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/dosproc.scm (1.2): Remove most of the contents.  dired and
	comint have been cleaned so that fewer bindings are needed.

1992-09-23 19:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: comhst.scm (1.1), dirunx.scm (1.1): Initial revision

1992-09-23 19:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: make.scm (3.74), comint.scm (1.14), process.scm (1.25):
	Split comint into history manipulation and subprocess manipulation.
	 History is used by intmod, but the rest is not available under
	DOS.

1992-09-23 18:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.11): Update date.

1992-09-22 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.25): Fix implementation of
	X-GRAPHICS/DISCARD-EVENTS.

1992-09-22 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.cbf (1.5): Re-enable stack checks -- they're fixed now.

1992-09-22 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.22): Fix typo in sense of
	conditional branch.

1992-09-22 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.44): COMPRESSED-LOADER now takes a second
	argument, the pathname-type of the uncompressed file to be
	generated when *SAVE-UNCOMPRESSED-FILES?* is true.  This is
	necessary to allow COMPRESSED-LOADER to be used to load ".bcs"
	files as well as ".bci" files.

1992-09-21 22:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/arith.scm (1.2): Changes to match those to runtime system's
	arithmetic.

1992-09-21 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.27): Add hack to eliminate (lambda #f ...).

1992-09-21 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.28), runtime/runtime.pkg (14.161),
	6001/make.scm (15.20): Add hack to eliminate (lambda #f ...).

1992-09-21 15:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.25): Some n-ary procedures return their
	argument when they are passed exactly one.  Previously these
	procedures performed no type-checking on such arguments; these
	checks have been added.

1992-09-19 15:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.7): Fix DPMI_stack_fault_handler to use
	INT_Stack_Overflow.

1992-09-19 15:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosexcp.c (1.4): Fix limit handling in
	DPMI_alloc_scheme_stack.

1992-09-18 17:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/daemon.c (9.30): Use OS_channel_close_noerror instead
	of OS_channel_close in CLOSE-LOST-OPEN-FILES.

1992-09-18 15:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/artutl.c (1.11): Fix typo.

1992-09-18 15:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/artutl.c (1.10): Can't use signed as a variable name.

1992-09-18 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.24), runtime.pkg (14.160): Implement
	new procedure X-GRAPHICS/DISCARD-EVENTS to discard mouse button
	events that are in the queue.

1992-09-18 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.168): Signal error if user tries to set the
	pathname of a buffer to a directory.

1992-09-18 12:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prosenv.c (1.6): Use ulong_to_integer instead of
	long_to_integer to handle clock wrap around correctly.

1992-09-18 12:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: artutl.c (1.9), extern.h (9.48): Add ulong_to_integer
	and integer_to_ulong.

1992-09-18 12:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.38), bignum.h (9.28): Add ulong_to_bignum
	and bignum_to_ulong.

1992-09-18 12:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.12): Add the arities for all the primitives
	so the file can be sf'd on a non-DOS.

1992-09-18 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.22): Fix bug in last edit.

1992-09-18 12:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.21): Add the arities for all the primitives
	so the file can be sf'd on a non-Unix.

1992-09-18 01:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dossig.c (1.6), dostrap.c (1.2), dosexcp.c (1.3): Add
	hardware stack overflow protection under DPMI.

1992-09-18 01:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: stack.h (9.32), hooks.c (9.45): Add STACK_RESET macro
	for machines/OSs in which we have hardware stack protection.

1992-09-18 01:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.28): Initialize
	Scheme_Stack_Segment_Selector only if it has not been initialized.

1992-09-17 22:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.27): Add
	Scheme_Stack_Segment_Selector for DOS, and make sure that esp is
	loaded immediately after ss because the 386 architecture masks
	interrupts for one instruction after modifying ss.

1992-09-17 22:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.18): Rename improperly declared
	extern (i386_interface_initialize.

1992-09-17 20:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.99.1.1): Package file for alternate debugger.

1992-09-17 19:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.7): Add code to recognize the
	"write-protected" error when writing to the floppy, and to give a
	more succinct error message.

1992-09-17 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.155): In TYPEIN-EDIT-OTHER-WINDOW, don't
	return a window that has been deleted.	Always return *some*
	window, even if all of the saved windows has been deleted.

1992-09-17 09:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossys.c (1.3): int 21h 60h only writes 128 bytes.

1992-09-17 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.13): Add code to detect non-DOS filenames and
	discourage their use.

1992-09-16 21:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/thread.scm (1.7): Fix the adjustment for real-time timer
	wrap around.

1992-09-16 20:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/thread.scm (1.6): Add a patch to deliver-timer-events for
	real-time timer wrap-around.

1992-09-16 20:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.11): Flush references to indirect
	primitives.  They do not exist for DOS.

1992-09-16 20:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prdosfs.c (1.3): Flush indirect primitives.  They make
	no sense in DOS.

1992-09-16 20:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.10): Add file-access-time-direct,
	file-access-time-indirect, file-access-time, and set-file-times!

1992-09-16 20:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/notify.scm (1.10): Fix broken conditional in notifier.	The
	notify string was not being updated at all if the mail notification
	hook was not installed.

1992-09-15 17:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosxcutl.asm (1.5): Get rid of IntEnb and IntCode as
	independent variables.	They are now part of the register block.

1992-09-15 16:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prdosfs.c (1.2), dossys.c (1.2), dosint10.c (1.2),
	dostop.c (1.5), dosfs.c (1.3): Make FILE-EQ? work correctly under
	DOS.

1992-09-14 19:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.28): Add HOOK/REPL-PROMPT.

1992-09-14 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.19): Define NIL and USER-INITIAL-ENVIRONMENT.

1992-09-14 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.18): Disable EXIT and QUIT so that students
	aren't logged out by accident.

1992-09-14 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.224): Use new %QUIT.

1992-09-14 19:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.42): Add %QUIT to guarantee access to
	basic QUIT mechanism.

1992-09-14 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.41): Add HOOK/EXIT and HOOK/QUIT to allow
	EXIT and QUIT to be overridden.

1992-09-14 19:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.12): Change mail to insert both "From:" and
	"Reply-to:" addresses.

1992-09-14 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.6): Install new login window text from LAS.

1992-09-14 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.5): Use home directory if "work/" doesn't
	exist.

1992-09-14 17:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.4): Add code to support a "motd" file.

1992-09-14 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.68): Fix occurrences of `set_IntEnb'.

1992-09-14 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intrpt.h (1.10): In definitions of interrupt registers,
	use `Registers' instead of `Regs', because the latter breaks in
	"interp.c" where references occur outside of `Interpret'.

1992-09-14 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.35): For FOCUS-IN events, don't generate a
	SELECT-SCREEN operation if the screen is already selected.  This
	should prevent spurious failures of PROMPT-FOR-CHAR.

1992-09-11 20:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.33): Add new hook for
	close-coded stack/interrupt check.

1992-09-11 20:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/hppa.m4 (1.21), version.h (11.120): Add new
	hook for close-coded stack/interrupt check.

1992-09-11 18:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.40): Add new hook for
	close-coded stack/interrupt check.

1992-09-11 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dosconio.c (1.6), const.h (9.41), interp.c (9.67),
	storage.c (9.51), intrpt.h (1.9), extern.h (9.47): Move IntCode and
	IntEnb to the register block so that compiled code can access them.

1992-09-11 01:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.cbf (1.4): Disable generation of stack checks until
	implementation bugs are fixed.

1992-09-10 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.49): Handle stack checks correctly. 
	Previous code was jumping to interrupt code even when
	stack-overflow interrupt was disabled.

1992-09-10 05:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.3): Don't do compensation kludge for 60-second
	granularity, it causes all files to be written back to floppy every
	time.

1992-09-10 04:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.2): Tweak some of the presentations.

1992-09-10 03:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.sf (1.7): Add "floppy" to the list of files that need
	compilation.

1992-09-10 03:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: edextra.scm (1.11), make.scm (15.17): Move editor
	customizations from "make.scm" to "edextra.scm".  Extend filename
	customizations so that they do the usual thing when the files being
	operated on are not part of the student environment.  Add remaining
	backup and auto-save filename customizations.  Add Scheme's file
	types to list of ignored types.  Disable key bindings that exit the
	editor.

1992-09-10 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: make.scm (15.15), edextra.scm (1.10), make.scm (15.16):
	Add first version of floppy code.

1992-09-10 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/floppy.scm (1.1): Initial revision

1992-09-09 22:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.46), curren.scm (1.104), bufmnu.scm
	(1.120), edwin.pkg (1.99), rename.scm (1.5), wincom.scm (1.112),
	winren.scm (1.4): Extend the definition of SELECT-BUFFER-IN-WINDOW
	so that it has the functionality of SET-WINDOW-BUFFER!.  Eliminate
	the latter, then export the procedure of the same name from the
	window package.

1992-09-08 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffrm.scm (1.45): Fix think-o in window-configuration
	stuff.

1992-09-08 17:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.9): Eliminate losing and unnecessary
	definitions of string->number and number->string.

1992-09-08 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffrm.scm (1.44): Fix typo in previous change.

1992-09-08 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: screen.scm (1.101), edwin.pkg (1.98), buffrm.scm (1.43):
	Install mechanism for saving and restoring window configurations.

1992-09-07 00:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosconio.c (1.5): Fix off-by-one error.

1992-09-06 12:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosxcutl.asm (1.4), doskbd.c (1.9), doskbutl.asm
	(1.5), dosconio.c (1.4), dosscan.h (1.4): Make caps-lock work
	correctly by adding a third translation table.

1992-09-05 06:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosscan.h (1.3): Move attn key to F10.  Some computers
	don't generate anything for F12.

1992-09-04 23:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.20): Add new procedures to read file access
	time and to set file times.

1992-09-04 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.50): Add primitives to read file access
	time.

1992-09-04 18:05  Nick Papadakis <nick@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.8): bugfixes to load-problem-set

1992-09-04 17:45  Nick Papadakis <nick@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.7): bugfixes to load-problem-set

1992-09-04 16:41  Nick Papadakis <nick@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.6): Added support for load-problem-set

1992-09-03 11:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.14): Disable handling of compressed and
	encrypted files.

1992-09-03 03:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosconio.c (1.3): Flush obsolete primitive.

1992-09-03 03:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dossig.c (1.5), dosconio.c (1.2), dosscan.h (1.2),
	dosxcutl.asm (1.3), dosx32.c (1.2), doskbutl.asm (1.4), doskbd.c
	(1.8): Change DOS timer interrupt behavior:
	
	- Low level timer interrupt sets the "Global GC" interrupt but.
	
	- The Global GC interrupt handler (a primitive) tracks user timer
	requests and sets the timer interrupt bit when appropriate.  It
	also invokes consume_typeahead to look for keyboard interrupt
	characters.
	
	Keyboard interrupt behavior changes:
	
	- The interactive handler is invoked from the consume_typeahead
	routine, not when Scheme is trying to map the interrupt character. 
	In this way, its range of actions is greater.
	
	- Add reset option and hard attention keys.
	
	Keyboard interrupt handler:
	
	- Implement X32 version (does not work under DPMI).
	
	- Rewrite DPMI handler to use masm-assembled code instead of
	hand-assembled code.  This makes it considerably easier to modify.

1992-09-02 12:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.10): Remove timer interrupt hack.  This
	stuff is done directly by the microcode now.

1992-09-02 12:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: thread.scm (1.5), version.scm (14.156): Timer
	interrupts are now only requested when there are other runnable
	threads or pending timer events, rather than at all tmes.

1992-09-02 01:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.12): Copy the global GC handler from the
	old interrupt vector to the new one.  The new DOS keyboard
	interrupt code requires this because it pre-initializes and uses
	the global GC interrupt.

1992-09-02 00:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.73): Add hook for DOS to initialize part of
	the fixed objects vector.

1992-09-01 23:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: edextra.scm (1.5), picture.scm (1.17): Add procedure to
	restore focus to the editor's screen.

1992-09-01 22:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.4): Load PRINT library using new procedure
	LOAD-EDWIN-LIBRARY.

1992-09-01 22:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.53): Create new procedure LOAD-EDWIN-LIBRARY
	that can be used to load a library when Edwin is not running.

1992-09-01 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.97), xterm.scm (1.34): Export procedures to
	force focus to a particular Edwin screen.

1992-09-01 22:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.3): Make sure printing library is loaded for
	this code.

1992-09-01 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.2): Fix some bugs.

1992-09-01 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/print.scm (1.11): Change switch-generation procedure to
	return a string instead of a list of strings.  This is a little
	more useful since no further processing will be performed on the
	switches after that point.

1992-09-01 18:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.16): Fix think-o in last change.

1992-09-01 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: 6001.pkg (1.7), make.scm (15.13): Try different magic for
	edwin extensions package.

1992-09-01 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.6): Try different magic for edwin extensions
	package.

1992-09-01 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.sf (1.6): Add support for M-x print-graphics.

1992-09-01 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: picture.scm (1.14), picture.scm (1.15): In
	picture->pgm-file, always scale.

1992-09-01 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.5), 6001/6001.sf (1.5), edwin/print.scm (1.10):
	Add support for M-x print-graphics.

1992-09-01 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/edextra.scm (1.1): Initial revision

1992-09-01 16:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.13): Add support for M-x print-graphics.

1992-08-30 10:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.67): Fix truncate and ftruncate prototypes
	and flush FTRUNCATE_DECLARED nonsense.

1992-08-30 10:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.22): Remove extraneous back-slash.

1992-08-30 09:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.119): "Final" alpha merge.

1992-08-29 09:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/compiler.sf (1.1): Initial revision

1992-08-29 09:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/alpha/: assmd.scm (1.1), coerce.scm (1.1),
	compiler.cbf (1.1), compiler.pkg (1.1), dassm1.scm (1.1),
	dassm2.scm (1.1), dassm3.scm (1.1), decls.scm (1.1), inerly.scm
	(1.1), insmac.scm (1.1), instr1.scm (1.1), instr2.scm (1.1),
	instr3.scm (1.1), lapgen.scm (1.1), lapopt.scm (1.1), machin.scm
	(1.1), make.scm (1.1), rgspcm.scm (1.1), rules1.scm (1.1),
	rules2.scm (1.1), rules3.scm (1.1), rules4.scm (1.1), rulfix.scm
	(1.1), rulflo.scm (1.1), rulrew.scm (1.1): Initial revision.

1992-08-29 09:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ux.h (1.38), bchdmp.c (9.66): Move HAVE_FTRUNCATE
	from bchdmp.c to ux.h.

1992-08-29 09:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.37): Fix bug in last edit: I interpreted the
	diff incorrectly.

1992-08-29 09:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.36): OSF does not have truncate, apparently.

1992-08-29 09:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bignum.c (9.37): Fix many instances of 1 (replaced by
	1L).

1992-08-29 09:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.50): Fix many instances of 1 (replaced by
	1L).  Remove internal static declarations for functions.  They are
	not legal to some compilers.

1992-08-29 09:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.15): Add call to prevent Ultrix from
	"fixing" unaligned accesses.

1992-08-29 09:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/error.c (1.3): Internal static is not legal, according
	to some compilers.

1992-08-29 09:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.66): Alpha mods.

1992-08-29 09:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/intprm.c (1.4): Fix word-size bug.	The code implicitly
	assumed that longs were always large enough to fit a full fixnum.

1992-08-29 09:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.11): Add real-uid and real-gid primitives.

1992-08-29 09:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.20): Fix word size problem.

1992-08-29 09:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.16): Alpha mods.

1992-08-29 09:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.35): Remove spurious CONST in return type of
	getenv.  Add a couple of syscalls.

1992-08-29 09:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/osscheme.h (1.7): Fix inconsistent prototype between
	definition and export.

1992-08-29 08:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/extern.h (9.46): Fix inconsistent prototype between
	definition and export.

1992-08-29 08:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.h (1.8): Fix word size problem manifested on
	Alpha: 1 -> 1L

1992-08-29 08:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.21): Alpha mods.

1992-08-29 08:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/alpha.h (1.2): Add page_size for autoclobber
	code.

1992-08-29 08:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.48): Alpha mods.

1992-08-29 08:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hard-par.c (1.2): Alpha mods.

1992-08-29 08:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/alpha.m4 (1.1): Initial revision

1992-08-29 08:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/alpha.h (1.1): Initial revision

1992-08-28 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/print.scm (1.9): Repaginate.

1992-08-28 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/print.scm (1.8): Abstract the code to generate the list of
	lpr switches.

1992-08-28 14:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/macros.scm (1.55): Add command-defined? so various files
	can test for features being present or not.

1992-08-28 14:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/notify.scm (1.9): Change date format to match Emacs. 
	Conditionalize mail notification on presence of rmail.

1992-08-28 12:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosdir.scm (1.5): Teach pattern matcher to handle
	multiple asterisks.

1992-08-28 12:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/string.scm (14.5): Add substring?

1992-08-27 02:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/make.scm (3.73): Add BIOS driver for DOS version of Scheme.

1992-08-27 02:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/editor.scm (1.223): Change top level to not know how many
	display types there are in the system.

1992-08-27 02:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.96.1.1): Version that uses the old debugger.

1992-08-27 02:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.19): Rename continuation-browser to
	continuation-browser-buffer so that it can replace the new
	debugger.

1992-08-27 02:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.96): Add direct BIOS driver for DOS version of
	Scheme.
	
	Remove exports of console-display-type and x-display-type.

1992-08-27 02:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.33): Add direct BIOS driver for DOS version of
	Scheme.

1992-08-27 02:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/termcap.scm (1.4): Make sure that termcap primitives are
	implemented before invoking them.

1992-08-27 02:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/decls.scm (1.39): Add direct bios driver for DOS version of
	CScheme.

1992-08-27 02:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.18): Make SF not complain.

1992-08-27 02:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/bios.scm (1.1): Initial revision

1992-08-26 22:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/print.scm (1.7): Add missing #\? from string-prefix? call.

1992-08-25 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/manual.scm (1.10): HP-UX 8.07 uses "Reformatting entry"
	message instead of "Reformatting page".

1992-08-24 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/butils.scm (4.7): CREF doesn't like ACCESS to non-global
	environment.  Work around by using ENVIRONMENT-LOOKUP.

1992-08-24 11:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.26): Fix a few comments.

1992-08-24 09:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.8): $30 is also a callee-saves
	register.  It was not being preserved.

1992-08-22 15:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dostop.c (1.4): Fix typo (ENONENT instead of ENOENT).

1992-08-22 11:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/xcbfdir.scm (1.8), sf/butils.scm (4.6): Observe
	compiler:cross-compiling?

1992-08-21 19:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.12): In MAIL-DEFAULT-REPLY-TO, must use
	'INSERTED-DEFAULT because otherwise it is impossible to return null
	string.

1992-08-21 19:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: print.scm (1.6), loadef.scm (1.16): Add option switches
	for 6.001 support.  Change print commands to insert -J and -T
	switches when possible to make the output easier to identify.

1992-08-21 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.50): Don't permit inferior REPL evaluation
	unless the buffer is in inferior-repl mode.

1992-08-21 15:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dostop.c (1.3): Add more known error names.

1992-08-21 15:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dostop.c (1.2): Change the copyright notice to be
	accurate.

1992-08-20 19:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/regex.c (1.12): Fix potential OOE bug, and fix
	sign-extension (or unsigned char) bug on SGIs.

1992-08-20 18:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.3): Link where and eval buffers to debugger
	browser so that they are killed along with the debugger.  Change
	M-x browser-quit so that if the browser is associated with another
	browser or will be selecting another browser then that browser is
	selected and its associated information buffer is also shown.

1992-08-20 15:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.45): Fix bug by which temporary files
	were being mapped and therefore shared and not deleted.

1992-08-20 11:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.16.1.4): Merge in
	floating-point bug fixes from main branch.

1992-08-20 00:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.14): Fix typo from previous edit.

1992-08-20 00:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.13): Fix an allocation bug.

1992-08-19 21:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: rules3.scm (1.12), rulfix.scm (1.6): New
	MIPS closure code.  Works on newer R3000 systems (with larger
	cache-line sizes) and on R4000 systems in 32-bit mode.

1992-08-19 21:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: lapgen.scm (1.11), machin.scm (1.7): New
	MIPS closure code.  Works on newer R3000 systems (with larger
	cache-line sizes) and on R4000 systems in 32-bit mode.

1992-08-19 21:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.7): Change comment-syntax for Emacs
	mode declaration.

1992-08-19 21:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.6),
	compiler/machines/mips/instr1.scm (1.6): New MIPS closure code. 
	Works on newer R3000 systems (with larger cache-line sizes) and on
	R4000 systems in 32-bit mode.

1992-08-19 21:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.12): New MIPS closure code.  Works
	on newer R3000 systems (with larger cache-line sizes) and on R4000
	systems in 32-bit mode.

1992-08-19 13:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.11): Allow students to specify a null
	"reply-to:" address.  Always ask for this, but keep the last
	non-null address around and supply it as a default.

1992-08-19 09:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.43): Fix bugs in
	fixnum-quotient.

1992-08-19 09:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.42): Fix bug in
	fixnum-remainder.

1992-08-19 09:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.41): Fix bugs in
	fixnum-quotient.

1992-08-18 23:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm2.scm (1.7): Fix edit bug.

1992-08-18 19:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: evlcom.scm (1.38), intmod.scm (1.49): Fix implementation
	of transcript-disable-evaluation variable so that it now works. 
	Implement new option variable transcript-buffer-read-only, which
	defaults to true.

1992-08-18 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.10): Fix missing argument in call to
	prompt-for-string.

1992-08-18 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.9): Fix think-o in previous change.

1992-08-18 18:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.95): Export some variables from the
	operating-system specifics directory.

1992-08-18 18:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.8): Set mail-default-reply-to so that it
	prompts for a reply address the first time mail is sent.

1992-08-18 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.14): Extend definition of
	mail-default-reply-to so that it can be a thunk that returns a
	string.

1992-08-18 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.7): Enable version-control for 6.001 band, and
	trim-versions-without-asking.

1992-08-18 15:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.29): Fix y-offset bug in
	X-GRAPHICS-FILL-POLYGON.

1992-08-18 09:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm2.scm (1.6): Fix OOE bug in
	disassemble-one-instruction.

1992-08-18 09:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm3.scm (1.4): offset -> (next-offset)

1992-08-18 09:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr2.scm (1.5): Bind correct variable in
	a MOV rule.

1992-08-17 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.222): Detect errors that are generated by the
	X primitives when the connection to the X server is broken, and
	kill the editor when that occurs.

1992-08-17 23:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11.h (1.14), x11base.c (1.41): Add code to
	periodically transmit something to the X server, so that if the
	connection dies an error will be signalled to Scheme.

1992-08-17 22:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: intrpt.scm (14.11), load.scm (14.40), runtime.pkg
	(14.159): Add command-line switch "-no-suspend-file" to disable the
	generation of "~/scheme_suspend" files.

1992-08-17 20:07  Jason Wilson <jawilson@zurich.ai.mit.edu>

	* edwin/dired.scm (1.126): Changed Dired so that the copy flag char
	and the delete flag char are Scheme variables instead of hard-wired
	constants.

1992-08-17 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: i386/machin.scm (1.13), vax/lapgen.scm
	(4.14): Update stack-guard offset to new value.

1992-08-16 19:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.54), ppband.c (9.44): Explicitly set
	HEAP_MALLOC to malloc in case it has been defined to be another
	procedure that is not linked in.

1992-08-16 19:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.48): Fix bug going to compilers where int
	!= long.  Handle - (1 << FIXNUM_DATUM_LENGTH) correctly.

1992-08-14 00:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.14): Simplify parse-directory-component.

1992-08-13 23:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.13): Fix yet another directory parser bug.

1992-08-13 15:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.12): Fix bug in parse-directory-component.

1992-08-13 07:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/load.scm (14.39): Add delayed-action capability to
	command line processing.  This allows -eval and -load to delay
	their action until after the init file is loaded.

1992-08-12 05:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm2.scm (1.5): Fix signedness of offset
	field in read-procedure.

1992-08-12 05:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pathnm.scm (14.22): Add missing field to the
	unimplemented host type.

1992-08-12 05:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.11): Fix typo in last edit!

1992-08-12 05:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.10): Fix dos/canonicalize to not extract
	substrings when the string has the proper length.

1992-08-12 04:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.9): Fix parenthesis bug from last edit.

1992-08-12 04:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.8), pathnm.scm (14.21): Add
	system-dependent pathname canonicalization.

1992-08-12 04:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.12): Add system-dependent pathname
	canonicalization.

1992-08-12 02:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.19): Fix bug in
	flonum-negative?, flonum-zero?, flonum-less?, and flonum-equal? by
	which unordered comparisons always compared true, breaking code in
	runtime/dragon4.scm, for example.

1992-08-11 22:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instrf.scm (1.13): Add F%SUB and friends
	to accomodate Intel book bugs.

1992-08-11 22:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.18): Change uses of fsub
	into f%sub, and fdiv into f%div, etc.

1992-08-11 21:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.25): Change FP initialization for
	DOS until we get FP trap handling.

1992-08-11 21:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: load.scm (14.38), runtime.pkg (14.158), version.scm
	(14.155): Make command-line parser extensible.

1992-08-11 11:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/list.scm (14.14): Replace recursive append with iterative
	append.

1992-08-11 00:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/dassm2.scm (1.4): Remove spurious variable
	assignments.  Teach it how to destructure execute caches.

1992-08-11 00:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/dassm1.scm (1.2): Remove spurious variable
	assignments.  Fix problem with compiler:write-lap-file, remove
	spurious assigned variables, and update write-caches to use
	compiled-code-block/procedure-cache-offset.

1992-08-11 00:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm2.scm (4.11): Remove spurious variable
	assignments.

1992-08-11 00:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm1.scm (4.6): Fix problem with
	compiler:write-lap-file, remove spurious assigned variables, and
	update write-caches to use
	compiled-code-block/procedure-cache-offset.

1992-08-11 00:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm2.scm (4.19): Teach the
	disassemble how to read execute caches.

1992-08-10 22:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm2.scm (4.18): Flush spurious
	assignments.

1992-08-10 22:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: i386/dassm1.scm (1.5), bobcat/dassm1.scm
	(4.17): Fix compiler:write-lap-file.

1992-08-10 22:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm1.scm (4.17): Flush spurious
	variables assigned by dassm2.scm .
	
	Update disassembler/write-linkage-section to use
	compiled-code-block/procedure-cache-offset.

1992-08-10 22:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm1.scm (4.16): Flush spurious
	variables assigned by dassm2.scm .
	
	Update disassembler/write-linkage-section to use
	compiled-code-block/procedure-cache-offset.

1992-08-10 22:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.19): Flush spurious
	assignments.

1992-08-10 22:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm3.scm (1.3): Replace by the real
	thing.

1992-08-10 22:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/dassm2.scm (1.4): Replace stubs by the
	real thing.

1992-08-10 17:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr2.scm (1.4): Change syntax of segment
	register ops.

1992-08-08 12:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosdir.scm (1.4): Improve the pattern matcher to allow a
	trailing #\* to mean .* as well.

1992-08-07 15:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.pkg (1.11): Export
	compiler:open-code-floating-point-arithmetic? and lap->code .

1992-08-06 09:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosdir.scm (1.3): Eliminate some spurious consing.

1992-08-06 09:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosdir.scm (1.2): Add somewhat improved wildcard matching
	(in the middle of components).

1992-08-05 19:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: i386/compiler.pkg (1.10), vax/compiler.pkg
	(1.12): Export compiler:generate-stack-checks?

1992-08-05 19:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instrf.scm (1.12): Fix more floating-point
	documentation bugs.

1992-08-05 18:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instrf.scm (1.11): Fix swapped opcodes bug
	in i486 manual (FDIV <-> FDIVR, FSUB <-> FSUBR).

1992-08-05 17:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: rules3.scm (4.10), lapgen.scm (4.13): Add
	stack checks under control of compiler:generate-stack-checks?

1992-08-05 17:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules3.scm (1.23), lapgen.scm (1.21):
	Add stack checks under control of compiler:generate-stack-checks?

1992-08-05 11:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.40): Improve quotient
	and remainder code.

1992-08-04 22:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.74): The alpha uses alpha_heap_malloc to
	allocate the heap in order to change its protection to make it
	R+W+X, instead of just R+W.

1992-08-04 22:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/object.h (9.39): Use HEAP_MALLOC macro instead of using
	malloc directly.

1992-08-04 19:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.28): Fix bug in ENVIRONMENT-BOUND-NAMES --
	it was not showing variables bound in the environment extension of
	an IC environment when there was an internal lambda being used.

1992-08-03 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.23): Change message-selection code to use
	SHOW-MESSAGE instead of indirecting through the #\j binding of the
	RMAIL buffer's comtab.	The old method failed when the RMAIL buffer
	was in rmail-edit mode.

1992-08-03 17:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.19): Reimplement M-x
	rmail-edit-current-message to make it more like that of Emacs. 
	Signal an error if user attempts to select a message when the
	buffer is not in rmail mode.

1992-07-31 11:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.43): Add code to preserve uncompressed .bif
	files.	In this way, when debugging a file, the cost is paid only
	once.
	
	The most recent of the .inf, .bif, and .bci files is used.

1992-07-30 14:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.28): Increase size of HP-PA large constant
	space.

1992-07-30 11:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.73): Add SGI Iris mods.

1992-07-30 11:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.5): Add missing NOPs in
	branch-delay slots.

1992-07-30 11:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxtrap.h (1.15), oscond.h (1.11): Add SGI Iris mods.

1992-07-30 10:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.34): Add SGI Iris mods.

1992-07-29 19:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/compiler.pkg (1.38), mips/compiler.pkg
	(1.8), i386/compiler.pkg (1.9), vax/compiler.pkg (1.11): Fix
	support for assembly-labels files so that compiler can properly
	generate disassemblies.

1992-07-29 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rules3.scm (1.11): Add optional
	stack-overflow checks.	By default this is disabled.

1992-07-29 18:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/rules3.scm (4.33), bobcat/compiler.pkg
	(1.37), bobcat/lapgen.scm (4.45), mips/compiler.pkg (1.7),
	mips/lapgen.scm (1.10): Add optional stack-overflow checks.  By
	default this is disabled.

1992-07-29 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.cbf (1.3): Compile with stack-overflow checks.

1992-07-29 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/spectrum/compiler.pkg (1.37),
	machines/spectrum/lapgen.scm (4.39), machines/spectrum/rules3.scm
	(4.32), base/make.scm (4.92), base/switch.scm (4.19): Add optional
	stack-overflow checks.	By default this is disabled.

1992-07-29 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.47), const.h (9.40), extern.h (9.45),
	gc.h (9.31), interp.h (9.35), stack.h (9.31), storage.c (9.50),
	utils.c (9.53), version.h (11.118): Move Stack_Guard into the
	register block so that compiler can reference it for stack-overflow
	checks.

1992-07-28 15:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.7): Handle screwy directories with dots in
	their names.

1992-07-28 14:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dostty.c (1.2): DOS_initialize_tty now finds out the
	lines and columns directly from the BIOS.

1992-07-28 14:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosint10.h (1.1): Initial revision

1992-07-28 14:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosi10.asm (1.1), dosint10.c (1.1): Initial revision

1992-07-28 14:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosasutl.asm (1.2): model small -> model tiny.

1992-07-28 13:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosx32.c (1.1): Initial revision

1992-07-28 12:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.6): Make the DOS pathname code canonicalize
	pathnames to their maximum length to prevent duplicates.

1992-07-28 10:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/storage.c (9.49): MemTop, IntCode, and IntEnb are
	allocated elsewhere on DOS.

1992-07-28 10:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.4): Merge in latest changes: timer
	interrupts and exceptions when using X32.

1992-07-28 10:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosexcp.c (1.2), dosexcp.h (1.2): Merge in latest
	changes: timer interrupts and exceptions when using X32.

1992-07-28 10:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/doskbutl.asm (1.3): Merge in latest changes (tiny model
	instead of small).

1992-07-28 10:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosxcutl.asm (1.1.1.1): Alternate trap handler for X32.

1992-07-28 10:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dosxcutl.asm (1.2): Add support for exception handling
	under X32.

1992-07-28 10:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.24): Merge in latest changes (tiny
	model, Registers allocated elsewhere under DOS).

1992-07-25 11:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.24): Update after 386 and
	Alpha ports.

1992-07-24 18:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: stream.scm (14.7), runtime.pkg (14.157): Implement
	STREAM-FIRST and STREAM-REST as aliases for STREAM-CAR and
	STREAM-CDR, respectively.

1992-07-23 08:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.57): Declare some strings correctly and
	cast where appropriate.

1992-07-23 08:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ospty.h (1.2): Fix incorrect presence macro.

1992-07-23 08:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/obstack.h (1.8): int->long for 64-bit systems.

1992-07-23 08:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.51): read and write return ssize_t.

1992-07-23 08:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.72): Rename alpha preprocessor macro.

1992-07-23 08:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/obstack.c (1.5): int->long for 64-bit systems.

1992-07-22 23:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/oscond.h (1.10): Make OS conditionalziation consistent.

1992-07-22 23:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/tparam.c (1.4): Remove unneeded alpha
	conditionalization.

1992-07-21 18:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.27), scomb.scm (14.12): Eliminate bad
	cold-load dependency.

1992-07-21 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.40): Eliminate bad cold-load dependency.

1992-07-21 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.36): Implement FIXNUM? primitive.

1992-07-21 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prim.c (9.35): Implement NULL? primitive, different
	from NOT.

1992-07-21 13:28  Brian K. Zuzga <boogles@zurich.ai.mit.edu>

	* runtime/global.scm (14.39): Add dump-option option to fasdump.

1992-07-21 00:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.63): Add new type code names.

1992-07-21 00:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: global.scm (14.38), parse.scm (14.18), scomb.scm
	(14.11), uenvir.scm (14.26), unpars.scm (14.27): Change type code
	names.

1992-07-20 23:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scode.scm (14.13): Eliminate explicit reference to fixnum
	type code.

1992-07-20 18:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.42),
	compiler/machines/spectrum/compiler.pkg (1.36),
	compiler/machines/spectrum/dassm1.scm (4.16),
	compiler/base/toplev.scm (4.44): Fix support for assembly-labels
	files so that compiler can properly generate disassemblies.

1992-07-20 16:12  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/version.scm (14.154), microcode/x11graph.c (1.28),
	runtime/x11graph.scm (1.23), microcode/version.h (11.117): Change
	primitive X-GRAPHICS-COPY-AREA to accept both source and
	destination windows.  Change X graphics operation COPY-AREA to pass
	the same window for both parameters.

1992-07-18 08:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.53): Fix naming conflict.

1992-07-17 22:26  Hal Abelson <hal@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.4): Changed export list comment out the picture
	ops we aren't using, and to add picture->pgm-file.

1992-07-16 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.27): Increase default constant space to 450
	-- old value of 400 is now too small.

1992-07-13 11:20  aragorn

	* 6001/pic-read.scm (1.4): Discard delimiter character after
	reading each line.

1992-07-10 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.156): Restore export of
	*PP-DEFAULT-AS-CODE?*.	Problem was that source for "pp.scm" was
	several versions old and did not match rest of runtime system.

1992-07-10 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/pic-read.scm (1.3): Eliminate unused variable.  Reorganize
	somewhat.

1992-07-09 11:55  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/syntax.scm (1.75): Fix bug in END-OF-DEFUN command when
	point is before a word but not followed by any definition.

1992-07-08 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.10): Return #F when name server fails.

1992-07-08 14:19  Michael R. Blair <ziggy@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.9): Detect errors returned by
	`gethostbyname', and return the hostname in that case.

1992-07-06 20:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.19): Add delete-directory primitive.
	
	Merge in DOS get-environment-variable/set-environment-variable!
	changes.

1992-07-06 20:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.9): Add delete-directory primitive.
	
	Change make-directory to avoid putting the back-slash at the end of
	the name given to the primitive.

1992-07-06 20:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prosfs.c (1.10): Rename C name of primitive.

1992-07-06 19:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosfs.c (1.2), msdos.h (1.2), osfs.h (1.5), prosfs.c
	(1.9), utabmd.scm (9.62), ux.h (1.33), uxfs.c (1.8), version.h
	(11.116): Add directory-delete primitive.

1992-07-06 09:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.20): Flush MULTI_CLOSURE_PADDING (added for
	the Alpha, that no longer needs it because of a representation
	change), and conditionalize the definition of externally-visible
	closure macros so that they can be overridden from the
	cmpint-machine.h files.

1992-07-05 10:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.155): Remove bogus export of
	*pp-default-as-code?*

1992-07-05 10:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (4.12): When a pseudo register that has
	a label is deleted, the association with the pseudo register is
	removed from the map, but the label is not forgotten, and the
	register becomes a temporary.

1992-07-05 10:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: lapgen.scm (4.44), rules1.scm (4.37),
	rules3.scm (4.32), rules2.scm (4.13): Flush uses of INST.

1992-07-05 09:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/bitutl.scm (1.6): Add package: comment.

1992-07-05 09:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.11): Flush INST.

1992-07-05 09:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/bitutl.scm (1.5): Add remainder as an assembly-time
	operator.

1992-07-01 16:18  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.27): Fix bug in clipping caused by
	incorrect cast of signed coordinates to unsigned coordinates:
	clipping was done incorrectly when clipping rectangle extended
	above the window.

1992-06-15 18:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.5): Don't let TCP-SERVER-CONNECTION-ACCEPT
	block with interrupts disabled; this prevents other threads from
	running.  Instead, run in loop and explicitly check for other
	threads that want time.

1992-06-11 21:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/crsend.scm (1.8), base/toplev.scm (4.43),
	base/crstop.scm (1.10), base/switch.scm (4.18), base/make.scm
	(4.91), back/bittop.scm (1.15): Change cross-compiler to dump a
	bit-string and a bunch of objects instead of a compiled code block.
	 This allows cross-compilation to machines with a different word
	size.

1992-06-11 15:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/arith.scm (1.24): Fix bug in atan2 (atan 0 -2) used to
	give 0 instead of pi.

1992-06-11 14:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/unexec.c (9.24): Update to new version from GNU Emacs. 
	Needed for MIPS/Ultrix.

1992-06-11 14:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.115): Changes for Alpha/OSF.

1992-06-11 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.46): Reorder and cast the entries in the
	utility table so that prototypes can be used.

1992-06-11 13:31  u6001

	* 6001/picture.scm (1.12): still changing to deal with new
	representation of pictures

1992-06-11 09:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.45): Add some missing prototypes.

1992-06-11 08:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.22): Add Ultrix conditionalization.

1992-06-11 08:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: oscond.h (1.9), ux.h (1.32): Add OSF
	conditionalization.

1992-06-11 08:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/obstack.h (1.7): alignment_mask -> long.

1992-06-11 08:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.65): MAX_CHAR -> UCHAR_MAX

1992-06-10 17:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prim.c (9.34): (1 << foo) -> (1UL << foo)

1992-06-10 17:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.52): Add static keyword to definition of
	ispunct so there won't be a clonflict with an external routine of
	the same name.

1992-06-10 17:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bignmint.h (1.2): (1 << something) replaced by (1UL <<
	something).

1992-06-10 17:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.26): Add missing conditionalization. 
	option_edwin_defaults can only be used if HAS_COMPILER_SUPPORT.

1992-06-10 17:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.8): const -> CONST.

1992-06-10 17:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prosfile.c (1.5): Flush unnecessary primitives
	FILE-OPEN-BINARY-INPUT-CHANNEL and FILE-OPEN-BINARY-OUTPUT-CHANNEL.

1992-06-10 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.4): Change socket code to accept numeric
	service numbers.

1992-06-10 14:03  sybok

	* edwin/info.scm (1.111): Fix defaulting of info-menu command.

1992-06-09 12:53  aragorn

	* 6001/pic-reco.scm (1.4): changed to deal with new representation
	of pictures...

1992-06-09 12:32  aragorn

	* 6001/pic-ops.scm (1.3): changed to deal with the changes to the
	way pictures are represented

1992-06-08 14:17  aragorn

	* 6001/: picture.scm (1.11), pic-reco.scm (1.3): changed uses of
	floating-point-ref to vector-ref to deal with changes in beginning
	of picture.scm. i.e.-to reduce size of pictures

1992-06-08 14:12  aragorn

	* 6001/pic-ops.scm (1.2): changed uses of floating-point-ref to
	vector-ref to deal with changes in picture.scm.

1992-06-08 12:50  aragorn

	* edwin/debug.scm (1.2): Don't attempt to display the name of an
	undefined environment.

1992-06-08 12:49  aragorn

	* 6001/: pic-imag.scm (1.4), pic-reco.scm (1.2), picture.scm
	(1.10), pic-read.scm (1.2): Change representation of floating-point
	arrays in picture data structures.

1992-06-05 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debug.scm (1.1): Initial revision

1992-06-05 17:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: intmod.scm (1.48), edwin.pkg (1.94): Changes for new
	debugger.

1992-06-05 16:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.14): i386 trap code in this file is only
	known to be valid for mach3.0.

1992-06-05 16:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtop.c (1.9): Conditionalize for errnos not available
	in some systems.

1992-06-05 16:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsock.h (1.4): Include osio.h.

1992-06-05 16:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.10): Include osio.h that defines
	NO_CHANNELS.

1992-06-05 16:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.23): Fix incorrect variable reference.

1992-06-05 16:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.31): Remove redundant inclusion for compilers
	whose include files are not protected against multiple inclusion.

1992-06-05 15:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxsock.c (1.6): Conditionalize socket code better.

1992-06-05 15:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.49): ESTALE is not present in all versions
	of Unix.

1992-06-05 15:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.7): calls to gethostname need to be
	wrappend around HAVE_SOCKETS.

1992-06-05 15:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.25): Eliminate redundant include for
	compilers whose include files are not protected against multiple
	inclusion.

1992-06-05 15:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/object.h (9.38): Eliminate word size dependencies:	1
	-> 1L

1992-06-05 00:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.114): Fix a major bug in bchscheme, and
	minor changes for DOS.

1992-06-05 00:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.24): Bump 386's edwin constant space.

1992-06-04 10:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.50): Conditionalize definition of
	IO_PAGE_SIZE.

1992-06-04 09:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.48), bchgcc.h (9.49): Fix edit bug in
	last edit.

1992-06-04 08:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.47): Change IO_PAGE_SIZE for DOS.

1992-06-04 08:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/doskbd.c (1.7): Change default sense of kbd hooks. 
	Now, by default, scheme _does not_ install keyboard hooks.

1992-06-03 23:08  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/dos.scm (1.2): Added files to avoid for completion.

1992-06-03 23:02  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* cref/cref.sf (1.5): Fixed runtim.glob filename.

1992-06-03 22:57  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* cref/cref.sf (1.4): Made file loadable without having to first
	build the runtime system.

1992-06-03 17:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.75): Fix unit bug in read_newspace_address,
	and initialization bug in INITIAL_SCAN_BUFFER .

1992-06-03 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.58): Fix bug in updating Free_Constant.

1992-06-03 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.65), bchgcc.h (9.46): Change order of
	file inclusion and other small mods to satisfy vanilla sysv.

1992-06-03 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdrn.h (1.4): Change order of file inclusion to
	satisfy vanilla sysv.

1992-06-03 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.9): Use new operation
	X-GRAPHICS/DISABLE-KEYBOARD-FOCUS to prevent the window manager
	from giving keyboard focus to graphics windows.

1992-06-03 14:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.22), runtime.pkg (14.154): Add new
	operation X-GRAPHICS/DISABLE-KEYBOARD-FOCUS.

1992-06-01 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.6): Add option to print NAMED-LAMBDA special
	form as LAMBDA.  Change default of *PP-NAMED-LAMBDA->DEFINE?* to
	false.

1992-06-01 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.2), 6001/make.scm (15.5): Add option to
	disable special handling of undefined values.

1992-06-01 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.26): Add option to print NAMED-LAMBDA special
	form as LAMBDA.  Change default of *PP-NAMED-LAMBDA->DEFINE?* to
	false.

1992-06-01 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.6): Change output from definitions to use
	"-->" instead of ":" as separator.

1992-06-01 17:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.37): Add code to disable evaluation commands
	in the transcript buffer.

1992-06-01 17:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.8): For some reason HP has decided that their
	8-bit gray displays should be GrayScale instead of StaticGray. 
	This problem is compounded by some program, probably MWM, which has
	preallocated some read/write color cells, thus preventing us from
	allocating all 256 gray levels.  Grumble; work around this by only
	allocating 128 gray levels.

1992-06-01 15:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.23): Bump up DEFAULT_SMALL_CONSTANT for the
	386 (again).

1992-06-01 12:50  u6001

	* edwin/artdebug.scm (1.18): Fix typo.

1992-05-31 02:15  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.8): Added test-and-set (file-touch) for
	call-with-temporary-filename.

1992-05-30 14:22  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/option.scm (14.17): Changed timing of when the options
	directory is actualized so it can be absent if the require option
	is already present.

1992-05-30 12:47  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/load.scm (14.37): Made packed file loader shadow
	file-directory? as well for option files to win.

1992-05-28 20:11  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.7): Upcasing environment variables.

1992-05-28 20:06  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.9): [no log message]

1992-05-28 19:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.8): Upcase MITSCHEME_INF_DIRECTORY.

1992-05-28 19:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.7): Upcase MITSCHEME_INF_DIRECTORY.

1992-05-28 19:31  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: dosprm.scm (1.6), make.scm (14.36): Added
	reset-environment-variables!

1992-05-28 19:21  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.6): Added reset-environment-variables!

1992-05-28 19:18  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.5): Added reset-environment-variables!

1992-05-28 18:59  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.41): [no log message]

1992-05-28 18:41  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.40), site.scm.unix (1.9), site.scm.dos
	(1.5): Fixed directory rewriting.

1992-05-28 17:35  u6001

	* 6001/picture.scm (1.7): Handle GrayScale visual type.

1992-05-28 16:01  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.5): Fixed dos filename parsing to handle
	environment variables.

1992-05-28 15:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.3): Flesh out interactive help message.

1992-05-28 15:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/doskbd.c (1.6): Rename the environment variable used to
	disable the full keyboard under DOSX, and add a way for disable the
	full keyboard under DPMI.

1992-05-28 15:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.56): Export strcmp_ci.

1992-05-28 14:58  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.39): Delayed expansion of rewritten
	directory name till use time.

1992-05-28 14:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dossig.c (1.2): Add Q as one of the options for the
	interactive handler.  Unfortunately, there is no convenient way to
	dismiss the interrupt right now.

1992-05-28 14:46  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.4): Added default
	mitscheme_inf_directory.

1992-05-28 14:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/make.scm (3.72): Change in DOS environment variables.

1992-05-28 14:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/ansi.scm (1.3): Clean up environment variables for
	foreground and background.

1992-05-28 14:40  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.38), site.scm.dos (1.3): Made directory
	rewriting understand devices.

1992-05-28 14:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/termcap.scm (1.3): Remove spurious test.

1992-05-28 14:12  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.4): Added Scheme level shadowing of
	environment variables.

1992-05-27 18:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.11): Fix wrong variable name.

1992-05-27 18:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.10): Fix missing parens bug.

1992-05-27 17:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.9): Fix comparison bug in microcode
	identifications.  The size of the console should not be used.

1992-05-27 13:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.2): Fix unbound variable bug and flush
	unnecessary code.

1992-05-27 13:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.22): Fix edit bug.

1992-05-27 13:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.21): Edwin has a different default constant
	space size.

1992-05-27 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.4): Repaginate.

1992-05-27 00:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/load.scm (14.36): Fix typo.

1992-05-27 00:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.37): Get rid of binf (which maps to bin on
	the pc).

1992-05-26 23:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.20): Make -fasl imply -large.

1992-05-26 23:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/load.scm (14.35): Add a patch for file-exists? in the
	packed binary loader so that edwin can see the packed edwin.bad.

1992-05-26 23:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.19): Bump up i386 band sizes.

1992-05-26 22:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.42): Rename "binf" files to "inf"
	because of conflicts on the PC.

1992-05-26 19:23  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.36): [no log message]

1992-05-26 19:20  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.35): [no log message]

1992-05-26 19:16  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.34): [no log message]

1992-05-26 19:12  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/output.scm (14.14): [no log message]

1992-05-26 19:08  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: input.scm (14.15), output.scm (14.13): Added binary
	file support.

1992-05-26 19:07  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.33), runtime.pkg (14.153), cpress.scm
	(1.3): Exposed compression operations on ports.

1992-05-26 17:33  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infstr.scm (1.6): Fix duplicate code problem.

1992-05-26 17:31  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.32): Fix unbound variable problem.

1992-05-26 16:33  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/version.scm (14.153): Add support for trimmed and
	compressed debugging information files.

1992-05-26 16:32  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.31): Fix typo.

1992-05-26 16:21  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.pkg (1.35): Eliminate
	duplicate import entry.

1992-05-26 16:21  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/: i386/compiler.pkg (1.8), bobcat/compiler.pkg
	(1.36), mips/compiler.pkg (1.6), vax/compiler.pkg (1.10): Add
	package support for dumping bif/bsm instead of inf/binf files.

1992-05-26 16:12  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.41): Change default to dump .bci
	files.

1992-05-26 16:09  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.pkg (1.34): Add support for
	BIF/BSM files.

1992-05-26 16:06  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.30), compiler/base/toplev.scm (4.40): Made
	BSM files optional.

1992-05-26 15:50  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.39): Made fasdump quiet.

1992-05-26 15:34  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: global.scm (14.37), infutl.scm (1.29): Made FASDUMP not
	print if necessary.

1992-05-26 14:41  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.27), infutl.scm (1.28): [no log message]

1992-05-26 14:02  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/option.scm (14.16): [no log message]

1992-05-26 13:51  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.2): [no log message]

1992-05-26 13:50  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.152): Added compress.

1992-05-26 13:45  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/cpress.scm (1.1): Initial revision

1992-05-26 13:40  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: option.scm (14.15), runtime.pkg (14.151): Added
	compress.

1992-05-26 13:31  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.26): Made uncompress fault tolerant.

1992-05-26 13:20  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.25): Added recognition of marker in
	compressed files.

1992-05-26 13:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/paths.scm (1.12): Add environment variables for Edwin
	directory pathnames.

1992-05-26 12:09  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.24): Added support of compressed info files
	and split symbol table files, i.e. bif, bsm, bci, and bcs.

1992-05-26 12:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: ed-ffi.scm (1.27), edwin.ldr (1.32), edwin.pkg (1.93),
	decls.scm (1.38), make.scm (3.71): Rename tags to tagutl because of
	conflicts on DOS.

1992-05-26 12:05  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.23), infstr.scm (1.5): Added support of
	compressed info files and split symbol table files, i.e. bif, bsm,
	bci, and bcs.

1992-05-26 01:55  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.18): [no log message]

1992-05-26 01:51  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.3): Added CALL-WITH-TEMPORARY-FILENAME.

1992-05-26 01:31  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.17): Added CALL-WITH-TEMPORARY-FILENAME.

1992-05-25 21:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: load.scm (14.34), version.scm (14.152):
	load-packed-binaries now captures fasload as well, so that .bad
	files can be collected into packed binaries.

1992-05-25 20:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.4): Allow device names with more than one
	letter.

1992-05-25 19:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.18): Fix bug in last change.

1992-05-25 12:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: doskbd.c (1.5), prdosenv.c (1.3): Add a primitive to
	disable/change translations by the interrupt handler.

1992-05-22 21:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: option.c (1.17), version.h (11.113): Not finding a
	utabmd file does not cause the microcode to halt unless we are
	cold-loading (i.e. using the -fasl option).

1992-05-22 21:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: option.h (1.9), cmpintmd/hppa.h (1.33): Change
	search_path_for_file.

1992-05-22 21:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: savres.scm (14.25), runtime.pkg (14.150): Change
	read-microcode-tables! to re-read-microcode-tables!

1992-05-22 21:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.8): Remove call to add-event-receiver! 
	re-read-microcode-tables! (previously read-microcode-tables!) is
	called directly by code in savres.scm .

1992-05-22 20:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: load.scm (14.33), runtime.pkg (14.149): Add a packed
	binary loader so that the compiler (or edwin) can be shipped as a
	single binary to be loaded on top of a vanilla runtime system.

1992-05-22 19:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.151): Add support for loading packed
	binaries.

1992-05-22 17:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/xdebug.c (9.30): Fix syntactic bugs (missing commas)
	and add a missing cast.

1992-05-21 18:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.40): Change default font to "fixed".  Add
	conditional macro to override this at compile time.

1992-05-21 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.39): Change default border/internal-border
	to match Emacs.

1992-05-21 13:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.92), intmod.scm (1.47): Add new procedure
	BUFFER/INFERIOR-CMDL for examining buffers with inferior CMDL
	threads.

1992-05-20 14:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.25): Don't use argument to
	GENERATE-UNINTERNED-SYMBOL.

1992-05-18 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.44): Fix SIGSEGV bug in GUARANTEE-NEWLINES.

1992-05-14 23:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.51): Fix bogus declaration.

1992-05-14 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.55): Eliminate possible infinite loops in
	auto-fill commands.

1992-05-14 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.8): Eliminate rewriting
	rules that produce patterns with constant datum and register type.

1992-05-14 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fill.scm (1.54), comred.scm (1.94): Redefine auto-fill
	minor mode so that it has no effect if the commands being
	overridden are not the expected ones.

1992-05-13 23:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/lapgen.scm (4.43), i386/lapgen.scm
	(1.20), vax/lapgen.scm (4.12), mips/lapgen.scm (1.9): Change
	lap:make-label-statement to use LAP instead of INST.

1992-05-13 23:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: vax/compiler.pkg (1.9), mips/compiler.pkg
	(1.5): Export add-end-of-block-code! and initialize-lap-linearizer!

1992-05-13 23:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.38): Change
	lap:make-label-statement to use LAP instead of INST.

1992-05-13 23:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.pkg (1.33),
	bobcat/compiler.pkg (1.35), i386/compiler.pkg (1.7): Export
	add-end-of-block-code! and initialize-lap-linearizer!

1992-05-13 23:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/linear.scm (4.14): Use ,@ instead of , for the
	result of lap:make-label-statement.

1992-05-13 22:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.38): Add a call to
	initialize-lap-linearizer! to phase/lap-generation.

1992-05-13 22:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/linear.scm (4.13): Forgot to change the copyright
	date.

1992-05-13 22:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/linear.scm (4.12): Add add-end-of-block-code! and
	support.

1992-05-13 18:45  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.26): [no log message]

1992-05-13 18:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.25): Rewrite uses x_polygon_vector_arg to
	capture notion of external representation of polygon as vector of
	alternating x and y coordinates.

1992-05-13 17:28  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.21): added x-graphics-fill-polygon and
	x-graphics/fill-polygon

1992-05-13 17:27  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.24): Added x-graphics-fill-polygon

1992-05-13 15:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpgc.h (1.16.1.1), cmpint.c (1.38.1.1): Changes for
	Sun 4 release.

1992-05-13 12:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prdosenv.c (1.2): Add a primitive to set the keyboard
	modifier bit mask.

1992-05-13 12:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: doskbd.c (1.4), doskbutl.asm (1.2): Fix ^Space and
	the modifier bit mask for P.

1992-05-12 20:56  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/site.scm.dos (1.1): Initial revision

1992-05-12 20:56  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/dosprm.scm (1.2): Deleted bogus primitives.

1992-05-12 14:42  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.31): Implemented conditional loading of files
	to make both DOS + Unix happy.	Fixed typo.

1992-05-12 14:18  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.30), edwin.sf (1.10), make.scm (3.70):
	Implemented conditional loading of files to make both DOS + Unix
	happy.

1992-05-12 11:45  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.37), edwin.pkg (1.91): Added DOS related
	files.

1992-05-12 11:29  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/: dos.scm (1.1), dosproc.scm (1.1): Initial revision

1992-05-12 09:43  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.8): [no log message]

1992-05-12 00:16  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/doskbd.c (1.3): Added environment variable to disable
	keyboard hooking on problematic machines.

1992-05-12 00:15  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.7): Added generation of runtim.bad file.

1992-05-11 22:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.24): RUN-SYNCHRONOUS-PROCESS must close the
	SUBPROCESS-OUTPUT-CHANNEL after all of the input region is written,
	otherwise the subprocess doesn't know that there is no more data. 
	This was being done in the case where the subprocess generated
	output, but not otherwise.

1992-05-11 00:54  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/ansi.scm (1.2): Fixed color modes.

1992-05-10 21:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.7): event:after-restore now invokes
	re-read-microcode-tables! instead of read-microcode-tables!
	re-read-microcode-tables! does not complain if the microcode
	identification (including version) has not changed an the
	utabmd.bin file is not found.

1992-05-10 13:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/doskbd.c (1.2): Re-enable qemm386 test.

1992-05-10 09:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/global.scm (14.36): Add Matt Birkholz's new fasdump,
	which has a restart.

1992-05-08 15:05  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/dosfg.c (1.2): Fixed arity bug in set-line-color!

1992-05-07 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.20), runtime.pkg (14.148): Add new
	operation X-GRAPHICS/READ-BUTTON.

1992-05-07 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.17): WRAP-UPDATE! operation must return result
	of the THUNK argument as its result.

1992-05-06 10:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.7): Fix a problem in OS_current_user_name
	under Ultrix.

1992-05-05 02:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ossig.h (1.2): Add more handlers.

1992-05-05 02:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dosasutl.asm (1.1), dosconio.c (1.1), dosenv.c (1.1),
	dosexcp.c (1.1), dosexcp.h (1.1), dosfg.c (1.1), dosfile.c (1.1),
	dosfs.c (1.1), dosinsn.h (1.1), dosio.c (1.1), dosio.h (1.1),
	doskbd.c (1.1), doskbd.h (1.1), doskbutl.asm (1.1), dosscan.h
	(1.1), dosselec.h (1.1), dossig.c (1.1), dossys.c (1.1), dossys.h
	(1.1), dosterm.h (1.1), dostop.c (1.1), dostop.h (1.1), dostrap.c
	(1.1), dostrap.h (1.1), dostterm.c (1.1), dostty.c (1.1), dosutil.c
	(1.1), dosutil.h (1.1), dosxcutl.asm (1.1), msdos.h (1.1),
	prdosenv.c (1.1), prdosfs.c (1.1): Initial revision

1992-05-05 02:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.19): Include ospty.h.

1992-05-05 02:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: osctty.h (1.2), uxctty.c (1.11), prostty.c (1.4): Add
	new interrupt character procedures.

1992-05-05 02:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/osterm.h (1.9): Split into osterm.h and ospty.h

1992-05-05 02:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prospty.c (1.1), ospty.h (1.1): Initial revision

1992-05-05 02:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prosterm.c (1.12): Split into prosterm.c and prospty.c.

1992-05-04 22:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.16): DOS/386 changes: The 386 needs a
	larger default constant space.

1992-05-04 22:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.71): DOS/386 changes.  There was redundant
	conditionalization previously.

1992-05-04 17:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prosfs.c (1.8): More DOS changes.

1992-05-04 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/oscond.h (1.8): More DOS changes.

1992-05-04 16:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.15): More DOS changes.	Absolute pathnames
	have different syntax.

1992-05-04 14:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/i386.h (1.17), bchgcc.h (9.45), bchmmg.c
	(9.74), bchgcl.c (9.44), bchpur.c (9.57), bchdmp.c (9.64): Many
	changes to make bchscheme work on the 386.

1992-04-30 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.4): Change to reflect source tree.

1992-04-30 14:28  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/: foreign.c (1.1), foreign.h (1.1): Initial revision

1992-04-30 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.112): Changes for Sony NEWS-OS 5.0.2.

1992-04-30 00:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.13): Sony NEWS-OS 5.0.2 changed the name of
	the general register set element of the ucontext structure.

1992-04-29 19:05  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.18): Fixed bug in rmail-edit-current-msg which
	manifests only on the last message in the RMAIL file.

1992-04-29 18:29  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.17): Added rmail-edit-current-message.

1992-04-29 17:23  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/unix.scm (1.26): Disable auto-save when reading in an
	encrypted file.

1992-04-24 13:07  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/starbase.c (1.5): Fixed typo (missing DEVICE) in
	comment.

1992-04-23 14:27  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.22): Revert back to version 1.20.

1992-04-23 14:22  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.21): Added support for #\R in rmail-summary
	mode.

1992-04-22 17:31  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.29): Fixed typo.

1992-04-22 17:20  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/ansi.scm (1.1): Initial revision

1992-04-22 17:14  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.90), edwin.ldr (1.28), decls.scm (1.36):
	Added ansi.scm to emulate a DOS ANSI.SYS terminal.

1992-04-22 17:11  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/termcap.scm (1.2): Check for PC terminal types so that
	termcap can be emulated.

1992-04-22 17:10  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.139): Made special keys not essential.

1992-04-22 17:03  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.221), display.scm (1.5): Changed display
	type parsing for DOS.

1992-04-22 16:59  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/dired.scm (1.125): Added DOS changes.  Added a Scheme
	version of ls.

1992-04-22 16:51  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/calias.scm (1.13): Made special-keys not required.

1992-04-22 16:26  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.25), dired.scm (1.124): Added
	os/auto-save-filename? to replace dependent code in dired.scm.

1992-04-21 18:26  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/outline.scm (1.5): Remove an unused procedure.
	
	Add FORWARD- and BACKWARD-DOWN-TOPIC.

1992-04-21 15:08  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/outline.scm (1.4): Make Outline mode key bindings match
	Emacs.

1992-04-21 13:27  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.24), filcom.scm (1.167): Added
	OS/COMPLETION-IGNORE-FILENAME? to unix.scm

1992-04-18 12:38  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/dired.scm (1.123): Added dired-compress and
	dired-uncompress.

1992-04-18 00:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.25): Fix yet another
	register allocation bug in division.

1992-04-17 20:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbmap.h (9.37): Fix ordering bug.

1992-04-17 20:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/comlin.h (1.5): Prevent multiple definition of true and
	false.

1992-04-17 20:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbmap.h (9.36): Add missing arguments to error fprintf
	in setup_io.

1992-04-17 18:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/crsend.scm (1.7): Add defn. of ucode-primitive so
	the file can just be loaded without having to syntax it.

1992-04-17 17:09  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/outline.scm (1.3): Fix bug in TOPIC-REGION.

1992-04-17 16:54  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/outline.scm (1.2): Add NARROW-TO-TOPIC to outline minor
	mode.

1992-04-17 16:27  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/outline.scm (1.1): Initial revision

1992-04-17 16:05  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.35), edwin.pkg (1.89), edwin.ldr (1.27),
	ed-ffi.scm (1.26): Add new outline minor mode.

1992-04-16 23:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.108): Add knowledge about end-of-line
	translation.

1992-04-16 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufout.scm (1.8), edwin.pkg (1.88), info.scm (1.110),
	bufmnu.scm (1.119), kmacro.scm (1.38), bufcom.scm (1.93): Define
	new procedure CALL-WITH-OUTPUT-MARK, and change most calls to
	WITH-OUTPUT-TO-MARK to use the new procedure instead.

1992-04-16 01:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.147), io.scm (14.30), fileio.scm (1.4),
	pathnm.scm (14.20), unxpth.scm (14.11), dospth.scm (1.3),
	version.scm (14.150): Teach the runtime system how to handle files
	whose lines end in something other than newline.

1992-04-15 21:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.24): Fix quoting problem in
	plus-fixnum.

1992-04-14 16:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.23): Fix register ordering
	conflict in the division routines.

1992-04-14 14:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.23): Add floating-point
	conditionalization so that the microcode will run on machines with
	and without floating-point instructions.
	
	The test depends on the host OS correctly setting the processor's
	CR0 (status word) bits.

1992-04-14 14:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.16): Add floating-point
	conditionalization so that the microcode will run on machines with
	and without floating-point instructions.

1992-04-14 14:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prosfile.c (1.4): Add FILE-OPEN-BINARY-INPUT-CHANNEL
	and FILE-OPEN-BINARY-OUTPUT-CHANNEL for systems where text files
	and binary files are distinct.

1992-04-14 14:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dospth.scm (1.2): Pathnames missing devices were using
	'UNSPECIFIC rather than #F.  'UNSPECIFIC means that the field is
	meaningless in the host file system.  #F means that it was not
	specified.

1992-04-13 16:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.4): Set evaluate-in-inferior-repl to true.

1992-04-13 15:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/pic-imag.scm (1.3): Add range limiting for gray pixel
	values.

1992-04-13 15:19  Hal Abelson <hal@zurich.ai.mit.edu>

	* 6001/: picture.scm (1.6), pic-imag.scm (1.2), 6001.pkg (1.3): *
	Change allocation of grays in colormap so that this works on 8-bit 
	 pseudo color displays.
	
	* Rename FUNCTION->PICTURE as PROCEDURE->PICTURE.
	
	* Don't export PICTURE-READ and PICTURE-WRITE.
	
	* Add new procedure PICTURE->PGM-FILE.

1992-04-13 14:24  Hal Abelson <hal@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.19), runtime.pkg (14.146): Add
	operation to get x-display object from an X graphics device.  Add
	property list to x-display object.

1992-04-13 00:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.90): A few little changes, plus,
	
	Change conditionalization of the open-coding of floating-point
	primitives.  It was previously done statically when the compiler
	was built.  It is now done at the point of the call, so the switch
	can be meaningfully fluid-let around a compilation.
	
	Add the unsafe open-coding of integer->char.  Add a couple of
	optimizations to plus-fixnum and minus-fixnum.

1992-04-13 00:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.47): Change conditionalization of
	the open-coding of floating-point primitives.  It was previously
	done statically when the compiler was built.  It is now done at the
	point of the call, so the switch can be meaningfully fluid-let
	around a compilation.
	
	Add the unsafe open-coding of integer->char.  Add a couple of
	optimizations to plus-fixnum and minus-fixnum.

1992-04-11 19:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: dospth.scm (1.1), dosdir.scm (1.1), dosprm.scm (1.1):
	Initial revision

1992-04-11 19:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.145), make.scm (14.35), unxpth.scm
	(14.10), pathnm.scm (14.19), version.scm (14.149): Add changes for
	DOS:
	
	- Add dos-specific packages, similar to Unix packages.	-
	Conditionalize the loading of the Unix and DOS -specific packages. 
	- Add a mechanism to make.scm to avoid loading unconditional files:
	  If the binary file runtim.bad is in the current directory when
	make   is running, it should contain a list of strings, each the
	name of a   file that should be avoided.  Examples: graphics,
	x11graph, starbase.  - pathnm.scm now uses the OS-NAME-STRING in
	the microcode	identification to initialize the default host.	It
	no longer   constructs the host types.	These are constructed when
	the   system-dependent files invoke add-pathname-host-type!  
	Caveat: There is now a funny ordering dependency.      pathnm must
	be loaded before the system-dependeng files (unxpth, dospth)	 
	but it must be initialized _afterwards_!  - pathnm.scm now has
	symbolic names for three file system types: Unix,   DOS, and VMS.

1992-04-10 16:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.103): Add hooks to be run when a buffer is
	renamed.  Generalize hooks mechanism to simplify addition of other
	types of hooks.

1992-04-10 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/ed-ffi.scm (1.25): Supply missing information for
	"compile.scm".

1992-04-09 14:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.87), replaz.scm (1.77): Add occurrence
	commands.

1992-04-09 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.34), ed-ffi.scm (1.24), edwin.ldr (1.26),
	edwin.pkg (1.86): Add occurrence commands.

1992-04-09 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/occur.scm (1.1): Initial revision

1992-04-08 16:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.3): Update to match recent change to Edwin.

1992-04-08 13:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.93), curren.scm (1.102), edwin.pkg (1.85),
	evlcom.scm (1.36), filcom.scm (1.166), intmod.scm (1.46),
	modlin.scm (1.14), schmod.scm (1.26): Support to permit evaluation
	commands to work more like those in the Emacs interface.
	
	* Add new variable EVALUATE-IN-INFERIOR-REPL.  If true (default is 
	 false), the evaluation commands operate by transmitting
	expressions   to an inferior REPL.  The REPL used is the
	least-recently-started	 inferior REPL (usually the one started
	when the editor is first   entered).  When this variable is true,
	the RUN-LIGHT in Scheme   buffers is that of the inferior REPL.
	
	* Evaluation commands no longer recognize the prefix argument to
	have   special meaning.
	
	* The default value of MODE-LINE-PROCESS no longer displays
	RUN-LIGHT.    This is bound in Scheme mode now.
	
	* The commands M-x set-environment and M-x set-syntax-table now
	bind   the associated variables locally in the current buffer.	 
	Additionally, they may locally bind the variable   
	EVALUATE-IN-INFERIOR-REPL to false if the buffer has local   
	definitions of environment or syntax-table.
	
	* When EVALUATE-IN-INFERIOR-REPL is true, C-c C-c will signal a ^G 
	 interrupt to the inferior REPL when typed in any Scheme mode
	buffer.
	
	* Add kill-buffer hooks to allow arbitrary actions to be executed
	when   a buffer is killed.  Change inferior REPL support to use
	this   mechanism to kill the inferior REPL thread when its buffer
	is   killed.

1992-04-07 15:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.39): Teach
	fixnum-quotient about powers of two that don't fit in an ADDI
	instruction.

1992-04-07 11:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn3.scm (4.9): Make the coalescing message only
	print one copy of the object, since they will print the same.

1992-04-07 08:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.155): Fix some bugs in last change.

1992-04-07 05:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.154), comman.scm (1.69), buffrm.scm (1.42):
	Redesign local-variable binding mechanism so that default global
	value is always stored in a special slot in the variable object. 
	Variable assignment daemons are now called only when the value
	changes in some perceptible way, not when the local bindings are
	swapped in or out of the value cache.  Also, variable assignment
	daemons now take an additional argument, either a buffer or #F,
	indicating whether the change is local or global.

1992-04-07 04:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.220), bufset.scm (1.10): Change
	WITHIN-EDITOR? to a variable instead of a procedure, for speed.

1992-04-06 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn3.scm (4.8), base/switch.scm (4.17): Add
	switch COMPILER:COALESCING-CONSTANT-WARNINGS? to disable these
	warnings, since they are so common.

1992-04-06 16:25  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/unix.scm (1.23): [no log message]

1992-04-06 16:13  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.84), prompt.scm (1.154): Added support for
	.KY files.

1992-04-06 15:54  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.144), ed-ffi.scm (1.5): Addded krypt as
	a load-option.

1992-04-06 15:52  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/option.scm (14.14): Addded krypt to list of options.

1992-04-06 15:36  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.7): [no log message]

1992-04-06 01:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.27), runtime.pkg (14.143), error.scm
	(14.31): Change BKPT back to a macro so it can put the REPL in the
	appropriate environment.

1992-04-06 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.5): Abbreviate the value displayed by DEFINE.

1992-04-06 01:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.25): Invert the meaning of the prefix
	argument to M-tab in Scheme mode.

1992-04-04 21:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/curren.scm (1.101): Make GLOBAL-WINDOW-MODELINE-EVENT!
	handle all windows, not just those in the selected screen.

1992-04-04 21:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/load.scm (14.32): Add load/current-pathname fluid let by
	each load so that the binary unpacker can grab it.

1992-04-04 08:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.153), debuge.scm (1.45), editor.scm
	(1.219), edwin.pkg (1.83), fileio.scm (1.107), grpops.scm (1.16):
	Considerable tuning of the group insert/delete operations.
	
	* Eliminate buffer-modification-daemon; change group insert/delete 
	 operations to set the GROUP-MODIFIED? flag directly, and change
	the   auto-save code to work around that flag.	Now, buffers that
	are not   visible have no insert or delete daemons, and the group  
	insert/delete operations notice this to eliminate a procedure call.
	
	* The editor now has a GC daemon that cleans the marks list of
	every	known buffer.  The allows FOR-EACH-MARK to be inline-coded
	in the	 group insert/delete operations.
	
	* Eliminate bug in GROUP-DELETE!: when the gap exceeded  
	GAP-MAXIMUM-EXTRA, it was being reduced to GAP-MAXIMUM-EXTRA.  Thus
	  a series of deletions would cause the gap to reach that size,
	then   each subsequent deletion in the series would pay for a gap  
	reduction, which can be thousands (or even millions) of  
	instructions, depending on the size of the buffer.  Now when the
	gap   reaches maximum size, it is reduced to GAP-ALLOCATION-EXTRA, 
	 allowing the gap reduction to be amortized over many deletions.

1992-04-04 08:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/manual.scm (1.9): Tune the man-page cleaning code.  This
	tuning is perhaps excessive, as it turns out that most of the time
	was being lost in GROUP-DELETE! due to a bug; perhaps the code
	should now be simplified.

1992-04-04 08:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/undo.scm (1.50): Tune the undo insert/delete recorders to
	make sure that no time is wasted.  These are called very often and
	must be fast.

1992-04-04 07:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.52): Add missing (lambda () ...) to M-x
	load-library.

1992-04-02 06:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/regex.c (1.11): Increase size of failure stack in
	regular expression matcher.

1992-04-02 03:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.62): Optimize DELETE-MATCH for speed.

1992-04-02 03:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/manual.scm (1.8): Optimize NUKE-NROFF-BS for speed.

1992-04-02 02:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.142): Export STACK-FRAME/COMPILED-CODE?
	to global package.

1992-04-01 20:00  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.6): [no log message]

1992-04-01 14:14  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.18): Fix wrong-number-of-arguments bug in
	X-GRAPHICS/QUERY-POINTER calling X-GRAPHICS-MAP-X-COORDINATE and
	X-GRAPHICS-MAP-Y-COORDINATE.

1992-04-01 14:08  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.17): Make wrong-arity primitives
	cause an error in addition to a warning.  (Jinx and Arthur)

1992-03-31 21:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.24): Eliminate M-g and M-q from Scheme mode.

1992-03-31 15:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulrew.scm (1.11): Add rewriting rule for
	FIXNUM-LSH with constant second argument.

1992-03-31 14:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.7): Clean up tests.

1992-03-31 14:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rulrew.scm (1.5): Add FIXNUM-LSH rewrite
	rule so that shifts by constants will always be combined.

1992-03-31 14:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.6): Edit bug in last
	change.

1992-03-31 02:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.100): Always update the cursor position after
	a successful screen update, because the termcap interface doesn't
	know where it should be and can leave it in the wrong place.

1992-03-30 20:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.5): Add rewriting rules
	so that FIXNUM-LSH, FIXNUM-QUOTIENT, and FIXNUM-REMAINDER will not
	go out of line when the second argument is an appropriate constant.
	
	Improve rewriting rules for MULTIPLY-FIXNUM to handle all powers of
	2, and not only 4!

1992-03-30 20:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.38): Change
	multiply-fixnum rules to handle any power of 2, not only 4!

1992-03-30 19:53  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.5): As fast as the C code...

1992-03-30 17:53  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.4): [no log message]

1992-03-30 16:18  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.3): [no log message]

1992-03-30 16:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.15): Replace `shortcircuit' by `sc'
	because of identifier length problems in DOS.

1992-03-30 16:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.22): Another set of changes for
	DOS.  In particular, replace `shortcircuit' by `sc' because of
	identifier length problems.

1992-03-30 15:54  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.2): [no log message]

1992-03-27 18:19  Hal Abelson <hal@zurich.ai.mit.edu>

	* 6001/picture.scm (1.5): Change MAKE-WINDOW to work on B&W
	display.

1992-03-27 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosproc.c (1.12): Fix declarations to match
	`OS_make_subprocess'.

1992-03-26 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/nodefs.scm (1.4): Handle (DEFINE <name>) without error.

1992-03-26 17:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xcom.scm (1.8): New command M-x x-auto-raise-mode toggles
	auto-raise mode on and off.

1992-03-26 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.2): Move switch settings back to this file from
	the init files.

1992-03-26 06:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.21): Don't declare `select' in recent
	releases of HP-UX; that is done in a standard header file.

1992-03-26 06:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.63): Eliminate mismatched declaration of
	`ftruncate' for SYSV4.

1992-03-26 05:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.19): Patch to previous change.

1992-03-26 05:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxproc.c (1.14), osproc.h (1.7): Fix declaration of
	arguments passed to `execve'.

1992-03-25 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdrn.c (1.4): Do the right thing for hpux with the
	ANSI compiler.

1992-03-25 23:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.73): Do the right thing for hpux with the
	ANSI compiler.

1992-03-25 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.62), bchmmg.c (9.72): Do the right thing
	for hpux with the ANSI compiler.

1992-03-25 22:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.6): Do the right thing for hpux with the
	ANSI compiler.

1992-03-25 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/oscond.h (1.7): Do the right thing for hpux with the
	ANSI compiler.

1992-03-25 22:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.18): Eliminate conflicting definition.

1992-03-25 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.70): Do the right thing for hpux with the
	ANSI compiler.

1992-03-25 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/oscond.h (1.6): Set _HPUX_VERSION for release 8.0.

1992-03-25 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.82): Export switch to control "auto-raise"
	feature of X screens.

1992-03-25 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.17), runtime.pkg (14.141): Add switch
	to control "auto-raise" feature of X graphics windows.

1992-03-25 18:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: pp.scm (14.24), runtime.pkg (14.140): Add switch to
	control behavior of PP when AS-CODE? argument is defaulted.

1992-03-25 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/picture.scm (1.4): Fix oversight in last edit.

1992-03-25 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.26), unpars.scm (14.26), runtime.pkg
	(14.139): Add several new switches to control appearance of objects
	and REPL.

1992-03-25 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/make.scm (15.1): Don't initialize Edwin here; do that in
	".edwin" file instead.

1992-03-25 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/: picture.scm (1.3), 6001.pkg (1.2): Change to match recent
	changes to X11 graphics in runtime system.  Paginate code.

1992-03-25 16:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* 6001/6001.sf (1.4): Don't generate full CREF.

1992-03-25 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.81): Export control variables from inferior
	REPL package.

1992-03-25 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.33): Make Edwin window have X resource class
	"Emacs".

1992-03-24 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.33), edwin.pkg (1.80), edwin.ldr (1.25),
	make.scm (3.69): Add new file "compile.scm".

1992-03-24 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/compile.scm (1.1): Initial revision

1992-03-24 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.15): Change subprocess status operation to
	work correctly after subprocess has been deleted.

1992-03-24 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.23): Pass Emacs-style status message to
	process sentinel.

1992-03-20 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.25), runtime.pkg (14.138), thread.scm
	(1.4), x11graph.scm (1.16), version.scm (14.148): This runtime
	system requires microcode version 11.111 or later.
	
	* Allow CREATE-THREAD to accept #F as its first argument, and to
	use a	default continuation in that case.  Define  
	WITH-CREATE-THREAD-CONTINUATION to bind that default; change  
	CMDL/START to cause the default continuation to be bound to the  
	continuation of the CMDL driver.
	
	* Add new operations to x-graphics devices: RAISE-WINDOW,  
	LOWER-WINDOW, WITHDRAW-WINDOW, QUERY-POINTER.  Delete UNMAP-WINDOW 
	 operation which is superseded by WITHDRAW-WINDOW.
	
	* Add new operations X-GRAPHICS/OPEN-DISPLAY and  
	X-GRAPHICS/CLOSE-DISPLAY.  The value returned by  
	X-GRAPHICS/OPEN-DISPLAY may be passed to MAKE-GRAPHICS-DEVICE as a 
	 second argument when making x-graphics devices.
	
	* Export virtually all x-graphics operations by name as  
	X-GRAPHICS/foo.
	
	* Extensive redesign of X graphics internals.  Now events are
	handled   asynchronously by a separate thread, one per display
	connection.    Graphics windows now participate in the
	DELETE-WINDOW protocol, so    that closing a window with the window
	manager has the desired effect	  rather than killing the Scheme
	process.  Display connections are    memoized, and are reclaimed by
	garbage collection when no longer    used.  Closing a display
	connection closes all of the windows	associated with it.

1992-03-19 21:24  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/krypt.scm (1.1): Initial revision

1992-03-16 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.111): Various changes that are required
	by runtime 14.148 and later.  Upwards compatible with earlier
	versions of the runtime system.

1992-03-16 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.23): When creating a graphics window, set
	the WM keyboard input hint to false; this can be changed later if
	keyboard input is desired.

1992-03-16 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.38): Change X-DISPLAY-PROCESS-EVENTS to
	allow second argument to specify that UX_select should not be used
	(i.e. that subprocess input and interrupts should be ignored).

1992-03-16 14:27  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.5): Change graphics operations to receive
	the device, not just the descriptor, of the graphics object on
	which they are operating.

1992-03-16 11:51  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.71): Don't unlink file before closing it if
	the system does not allow that.  Fixed Reset_Memory to remember to
	unlink file.

1992-03-15 21:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.21): Change the syntax of indirect
	jumps for DOS.

1992-03-13 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.110): [no log message]

1992-03-13 19:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.37): * Add support for NotifyVisibility
	events.
	
	* Change MotionNotify events to include state information.    Also
	use PointerMotionHintMask to limit the amount of traffic when	
	these events are enabled.
	
	* Add new primitives
	
	    X-WINDOW-COORDS-ROOT->LOCAL
	    X-WINDOW-COORDS-LOCAL->ROOT
	    X-WINDOW-RAISE
	    X-WINDOW-LOWER
	    X-WINDOW-QUERY-POINTER
	
	* Fix X-WINDOW-SET-POSITION so that it works correctly with  
	reparenting window managers.

1992-03-13 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.20): Use XWMGeometry instead of XGeometry.

1992-03-13 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.32): Add support for tracking VisibilityNotify
	events.  Use this support to implement optional "auto raise"
	feature that raises the selected screen whenever the user types.

1992-03-13 18:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xcom.scm (1.7): Add commands to raise and lower the current
	X window in the stacking order.  Change default icon-name format to
	be "edwin".

1992-03-13 18:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.99): Change SCREEN-VISIBLE? to be true for a
	visibility of 'PARTIALLY-OBSCURED as well as the usual 'VISIBLE.

1992-03-13 14:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.20): - Stack segment swapping for
	Zortech C.  - Conditionalize for Microsoft's (and Zortech's)
	structure returning convention.

1992-03-13 07:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.98): Eliminate unused bound variable in
	SCREEN-UPDATE.

1992-03-13 06:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/instr1.scm (1.5): Change definition of NOP
	instruction to match that used by MIPS compilers.  Otherwise
	machine-language debuggers like GDB won't show this instruction as
	a NOP.

1992-03-13 05:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.68): [no log message]

1992-03-13 05:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.41), bufwin.scm (1.296), modwin.scm (1.39),
	window.scm (1.155): * Change all places that call UPDATE-INFERIOR!
	to test the redisplay	flags before doing the call.  Change
	UPDATE-INFERIOR! to eliminate	the test.  This change avoids a
	close-coded call with many arguments   if it is unnecessary.
	
	* Many of the low-level :UPDATE-DISPLAY! methods always return #T. 
	  Take advantage of this fact to eliminate unnecessary tests in the
	   callers.
	
	* WINDOW-MODELINE-EVENT! was informing the modeline window of the  
	event by means of a message.  Change this to a procedure call.
	
	* Change WINDOW-NEEDS-REDISPLAY! and INFERIOR-NEEDS-REDISPLAY! to  
	avoid close-coded call to SETUP-REDISPLAY-FLAGS! when it is  
	unnecessary.
	
	* Add declarations to cause CLIP-WINDOW-REGION-1 to be open-coded. 
	  This eliminates two close-coded calls and generation of a closure
	   over many variables.

1992-03-13 05:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: intmod.scm (1.45), edwin.pkg (1.79): * Change the name of
	the initial repl buffer to "*scheme*".
	
	* Add new editor variable REPL-ENABLE-TRANSCRIPT-BUFFER that causes
	  repl buffer transactions to be added to the transcript buffer (if
	it   is enabled).  Default for this variable is enabled.
	
	* Add new editor variable REPL-ERROR-DECISION to control the
	behavior   of a repl buffer when an evaluation error occurs.  If
	enabled, the   user is forced to choose between debugging the error
	and aborting   from it.  The default for this variable is disabled.
	
	* Add code to prod the editor after the run-light has been updated
	by   an inferior repl.	Otherwise the editor might not notice the
	change	 until later.
	
	* Change the name of the INFERIOR-DEBUGGER mode to be
	INFERIOR-CMDL.	  Change the modeline name of the INFERIOR-REPL
	mode to be "REPL".    Change the modeline name of the INFERIOR-CMDL
	mode to be "CMDL".    Change the names of the INFERIOR-REPL-foo
	interrupt commands to be    INFERIOR-CMDL-foo.	Change the name of
	the    INFERIOR-DEBUGGER-SELF-INSERT command to
	INFERIOR-CMDL-SELF-INSERT.

1992-03-13 05:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.97): * (update-screen!): Clear the
	NEEDS-UPDATE? of the screen if the   update finishes properly.
	
	* (screen-force-update): Fix typo that caused the new and current  
	matrix lines of highlighted text to become EQ?.
	
	* (with-screen-in-update): Eliminate UNWIND-PROTECT since
	interrupts   are locked while it executes and any errors in the
	redisplay   indicate a serious problem that makes the
	UNWIND-PROTECT	 uninteresting.
	
	* (with-screen-in-update): Avoid calling SCREEN-UPDATE if the
	screen's   NEEDS-UPDATE? flag is not set.
	
	* (with-screen-in-update, screen-update): Don't update the cursor  
	position unless the screen update finishes and the cursor has
	moved.
	
	* (screen-update): Avoid use of FIX:REMAINDER, which is not
	open-coded   on the MIPS.
	
	* (screen-update): Change meaning of PREEMPTION-MODULUS so that it 
	 counts the number of updated lines rather than the number of
	lines.	  This avoids unnecessary work when only a few lines need
	changing,    such as when only the modeline or typein window is
	being updated.	  Because of this change, eliminate
	DEBUG-PREEMPTION-Y from the SCREEN    structure since it is no
	longer easy to simulate preemption like    this (and this debugging
	tool was never needed).
	
	* (update-line-highlight): When comparing old and new lines, don't 
	 consider short matches since it is usually cheaper to ignore them.
	   This has already been done for the no-highlight case and should
	have	been done for this case at that time.

1992-03-13 05:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.103): Add new commands APROPOS-COMMAND and
	APROPOS-VARIABLE as aliases for COMMAND-APROPOS and
	VARIABLE-APROPOS.  Add new command APROPOS that finds any command,
	variable, or mode that matches the regular expression (perhaps it
	should also find ordinary Scheme symbols?).  Change output of
	apropos commands to more closely match that of Emacs.

1992-03-13 05:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.218): Change EDIT to set up the EDITOR-ABORT
	continuation correctly when reentering the editor after a suspend. 
	Previously it was returning to the same initial continuation
	whenever the editor was stopped.

1992-03-13 05:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.100): Change UPDATE-SCREENS! to scan each
	screen exactly once.  Don't mess with screen order when doing
	updates.

1992-03-13 05:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.13): COMINT-LINE-START was matching
	COMINT-PROMPT-REGEXP against the remainder of the buffer when it is
	only necessary to match against the remainder of the line.  This
	occasionally caused the primitive re-match-buffer to signal an
	anonymous error.  This patch will make the anonymous error
	extremely unlikely.
	
	The anonymous error indicates a stack-overflow condition that is
	difficult to fix properly.  However, the primitive can be modified
	to use heuristics that will eliminate the error; the cost is that
	cases that would have signalled the error will instead return a
	non-maximal match or a non-match in cases where it would have
	returned a maximal match had the stack been deep enough.

1992-03-13 04:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.92), modefs.scm (1.138): Define new command
	no-toggle-read-only and bind it to C-x C-q in the read-only and
	read-only-noarg modes.

1992-03-13 04:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.124): Change EDITOR-FAILURE to post a regular
	message instead of a temporary one.

1992-03-11 15:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.19): Forgot two underscores.

1992-03-11 15:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.18): Zortech C also requires
	underscores in data-segment variables.

1992-03-11 07:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.3): Fix bug in RUN-THREAD that would leave
	the block-events bit turned on after delivery of an event.

1992-03-11 04:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rulfix.scm (1.5): Use one-instruction
	sequence for unary fixnum predicates instead of more general
	two-instruction sequence.

1992-03-11 04:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.46): Rewrite instances of binary
	fixnum predicates as equivalent unary predicate when one arg is
	zero.

1992-03-09 21:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.19): Add MULTI_CLOSURE_PADDING for Alpha.

1992-03-08 13:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/basic.scm (1.123): Make Edwin variable BEEPING-ALLOWED?
	that is false if Edwin must never beep.

1992-03-08 12:38  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/notify.scm (1.8): Fix fencepost error in month.

1992-03-08 11:32  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/notify.scm (1.7): Make the notifier able to display the
	date.

1992-03-08 11:22  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.137): Export DECODED-TIME/DAY-OF-WEEK to
	global environment.

1992-03-07 13:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.17): More DOS changes.

1992-03-05 23:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.16): Fix minor bugs for DOS.

1992-03-05 19:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.15): Forgot one IF387 (for divide).

1992-03-05 19:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.14): Switch sense for floating
	point flag.  The default is to include the floating-point code.

1992-03-05 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.13): Conditionalize for
	floating-point support.

1992-03-05 15:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.12): Macroize everything up the
	wazoo to accommodate differences between Unix and DOS assemblers.

1992-03-03 18:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.8): Add 700 directory defaults so that
	sources can be found.

1992-03-03 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rulrew.scm (1.3): Don't generate rules
	with (MACHINE-CONSTANT 0) as a RHS; use (REGISTER 0) instead.

1992-03-03 11:32  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* 6001/picture.scm (1.2): Change GET-VISUAL-INFO because of change
	to X graphics devices that makes their operations get devices, not
	descriptors.

1992-03-02 18:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn3.scm (4.7): Change use of assoc in
	constant->label to a use of warning-assoc so the compiler will
	issue a warning when coalescing constant objects.

1992-03-01 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.22): Synchronous processes that need a
	specific working directory must pass that directory as an argument
	to start-subprocess.

1992-02-29 14:48  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.70): Added DOS 386/486 support.

1992-02-29 14:36  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.44), bchutl.c (1.2): Added DOS 386/486
	support.

1992-02-29 14:33  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.61), bchdrn.h (1.3): Added DOS 386/486
	support.

1992-02-29 14:09  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/ansidecl.h (1.2): Allow conditional use of CONST even
	in ANSI C mode because some compilers (DOS Zortech) don't declare
	their libraries correctly although they are allegedly ANSI
	compatible.

1992-02-28 18:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.13): Handle case where "options" directory
	is missing.

1992-02-28 15:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: assmd.scm (1.2), coerce.scm (1.2),
	dassm1.scm (1.4), dassm2.scm (1.3), dassm3.scm (1.2), decls.scm
	(1.2), inerly.scm (1.2), insmac.scm (1.10), instr1.scm (1.10),
	instr2.scm (1.3), instrf.scm (1.10), insutl.scm (1.10), lapgen.scm
	(1.19), lapopt.scm (1.2), machin.scm (1.12), make.scm (1.2),
	compiler.cbf (1.2), compiler.pkg (1.6), compiler.sf (1.3),
	rgspcm.scm (1.3), rules1.scm (1.15), rules2.scm (1.5), rules3.scm
	(1.22), rules4.scm (1.6), rulfix.scm (1.22), rulflo.scm (1.17),
	rulrew.scm (1.10): Initial release

1992-02-28 15:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.11): Add short-circuit handlers for
	common arithmetic.

1992-02-27 17:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.32): Add case for lexical-unassigned? in
	the unbound-variable error handler.

1992-02-27 17:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.51): Fix bug in unassigned_p_transform. 
	The system was not complaining about unbound variables.

1992-02-27 14:14  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: print.scm (1.5), loadef.scm (1.15): Move the variables
	for the PRINT library (which contains the commands LPR-BUFFER,
	LPR-REGION, PRINT-BUFFER, and PRINT-REGION) from print.scm to
	loadef.scm.

1992-02-27 14:02  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/primutl.c (9.55): Declared search_for_primitive
	properly.

1992-02-27 13:56  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/ostty.c (1.2): Added OS_tty_map_interrupt_char to
	request interrupt character when the interrupt is taken by Scheme.

1992-02-27 13:53  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/: ostty.h (1.3), uxsig.c (1.22): Added
	OS_tty_map_interrupt_char to request interrupt character when the
	interrupt is taken by Scheme.

1992-02-27 13:41  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/posixtyp.h (1.5): Added explicit typedef for off_t;
	Zortech C for DOS needs it.

1992-02-27 13:31  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/lookup.h (9.47): Changed parameter list of
	Future_Variable_Splice to please Zortech 386/486 compiler.

1992-02-27 13:26  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/flonum.c (9.39): Added DOS 386/486 support.  Removed
	redundant declaration for errno.

1992-02-27 13:17  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/config.h (9.69): Added DOS 386/486 support.

1992-02-26 21:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.9): Add missing sizeof in
	OS_open_server_socket.

1992-02-26 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: emacs.scm (14.13), runtime.pkg (14.136): Use
	SET-PORT/THREAD-MUTEX! instead of directly accessing PORT-RTD.

1992-02-26 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/port.scm (1.4): PORT/COPY must generate a new
	thread-mutex for the copy; it was erroneously using the mutex of
	the original.

1992-02-26 19:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.16): Fix bug causing characters to be lost.

1992-02-26 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tparse.scm (1.68): Eliminate several fencepost errors in
	the paragraph and sentence parsing code.

1992-02-26 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.135), emacs.scm (14.12): Make sure that
	thread-mutex of emacs interface port is same as that of the console
	port.  Otherwise keyboard interrupts aren't correctly delivered.

1992-02-25 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.15): Don't update screens unless going into
	input wait.

1992-02-25 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.67): [no log message]

1992-02-25 17:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.30), intrpt.scm (14.10), make.scm
	(14.34), port.scm (1.3), rep.scm (14.24), thread.scm (1.2),
	runtime.pkg (14.134), version.scm (14.147): * Ports now have a
	mutex that can be used to implement cooperative   locking of the
	port.  Command loops use this mutex to guarantee that	only one
	thread at a time uses the port.
	
	* The standard error handler notices when it is about to start a
	REPL   on a port that is locked by a thread different from the
	signalling   thread, transforms the error into a derived thread
	error, and   signals the derived error to the locking thread.
	
	* The procedures KEYBOARD-INTERRUPT-THREAD and	
	SET-KEYBOARD-INTERRUPT-THREAD! have been eliminated.  Keyboard	
	interrupts are sent to the locking thread of the console I/O port.
	
	* New procedure THREAD-MUTEX-OWNER returns the locking thread of a 
	 mutex, or #F indicating that the mutex is unlocked.
	
	* New procedure WITH-THREAD-MUTEX-LOCKED locks a mutex over a
	dynamic   extent.  If the calling thread already holds the lock,
	this   procedure does not signal an error and does not unlock the
	mutex at   the end of the extent.

1992-02-25 17:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.31): Don't attempt to update screens unless
	there is no immediate input.  Doing so is wasted effort since the
	update will abort almost immediately.  Also don't update screens
	for PEEK-NO-HANG; let the caller take care of updating if that is
	desirable.

1992-02-25 17:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.15): Add operations to change window and
	icon names, and to iconify windows.

1992-02-25 17:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.43): Change SIT-FOR to update screens while
	waiting.  Change SLEEP-FOR to be the same as SLEEP-CURRENT-THREAD.

1992-02-25 11:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules3.scm (1.21), lapgen.scm (1.18),
	rules4.scm (1.5): Use assembly language hooks to reduce code size.

1992-02-24 17:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.14): Add defintion of
	REGBLOCK_ALLOCATED_BY_INTERFACE, and add the initialization of many
	assembly-language hooks.

1992-02-24 17:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.44): Add conditionalization on
	REGBLOCK_ALLOCATED_BY_INTERFACE.

1992-02-20 16:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/make.scm (1.1.1.2): Fix herald string.

1992-02-20 11:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulrew.scm (1.9.1.1): Back merge with
	7.1.3: No object->float rules, instead @address->float rules.

1992-02-20 11:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.14.1.1): 7.1.3 compiler
	needs additional POST-INCREMENT rules.

1992-02-20 11:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.68): Yet another mach fp bug on 386s.

1992-02-20 11:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/missing.c (9.29): Fix bug in modf.	It was not
	preserving the sign of the operand, making floor and ceiling only
	work for positive values.

1992-02-20 02:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.16.1.3): Fix problem with
	invalid LAP generated by @ADDRESS->FLOAT rule.

1992-02-20 00:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/make.scm (1.1.1.1): Back-merge with 7.1.3

1992-02-19 18:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.20): Add missing comma in
	CONS-MULTICLOSURE rule.

1992-02-19 17:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.16.1.2): Replace remaining
	instances of OBJECT->FLOAT.

1992-02-19 17:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.16.1.1): Back-merge for
	7.1.3 .

1992-02-19 17:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/decls.scm (1.1.1.1): Back-merged version
	to run under 7.1.3.

1992-02-19 13:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/i386.h (1.13), cmpauxmd/i386.m4 (1.10):
	First working version of compiled runtime system.

1992-02-19 13:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.67): Conditionalize HAS_FLOOR for i386
	under Mach.  The library version is seriously broken.

1992-02-19 01:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.16): Add missing (ST 0)
	operands.

1992-02-19 00:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instrf.scm (1.9): Add definition of FNLDCW
	and fix opcode bug in FMULP, etc.

1992-02-19 00:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.15): Eliminate spurious
	extra call to flonum-unary-operation/general from rules involving
	1.

1992-02-18 23:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.14): Add missing operand to
	FCOMP instructions.

1992-02-18 23:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/machin.scm (1.11): Disable FLONUM-EXP
	because the F2XM1 instruction is broken on some hardware.

1992-02-18 19:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/notify.scm (1.6): * Time, load, and mail notification are
	now separately selectable.    Edwin variables notify-show-time,
	notify-show-load, and	 notify-show-mail select the components.
	
	  Additionally, the Scheme variable NOTIFIER-ELEMENTS controls what
	is
	  displayed and when; you can add new elements to customize the
	  notifier for your needs.
	
	* The notifier has been changed to use the new inferior thread
	output	 mechanism, which should eliminate the redisplay bugs that
	people	 have been seeing.
	
	* The command M-x run-notifier is used to start the notifier; M-x  
	kill-notifier kills it.  To start the notifier from your init file,
	  use ((REF-COMMAND RUN-NOTIFIER)).
	
	* The Edwin variable notify-interval is now in units of seconds  
	instead of milliseconds.

1992-02-18 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.217), intmod.scm (1.44), edwin.pkg (1.78):
	Add new mechanism for registering inferior threads that do output. 
	Each inferior thread has its own flag to indicate when it needs to
	do output, and a thunk that is to be run in the editor to produce
	the output.  When the thread wants to do output, it sets the flag;
	later, the editor notices that the flag has been set and calls the
	thunk.

1992-02-18 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.42): Eliminate gratuitous calls from
	MARK-FLASH and SIT-FOR to KEYBOARD-PEEK-NO-CHAR.  These calls were
	originally there to eliminate unnecessary screen update and to make
	the cursor flash appropriately; recent changes to
	KEYBOARD-PEEK-NO-CHAR make this undesirable.

1992-02-18 17:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulrew.scm (1.9): Remove rewriting rules
	for FLONUM-ASIN and FLONUM-ACOS.  They cannot be done in quite this
	way now.

1992-02-18 17:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/machin.scm (1.10): Remove FLONUM-ASIN and
	FLONUM-ACOS from open-coded list of primitives.

1992-02-18 17:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.13): Fix currying problem.

1992-02-18 16:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulrew.scm (1.8): Fix bug in
	byte-offset-address re-write rule.  It was constructing invalid
	RTL, and using the wrong offset to boot.

1992-02-18 16:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.21): Fix bug in
	multiply-fixnum-constant.  There is no	   (IMUL (R ?foo) (& ?bar))
	instruction.  It is an assembler macro for     (IMUL (R ?foo) (R
	?foo) (& ?bar))

1992-02-18 15:56  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/option.c (1.14): Macroized sub-directory delimiter to
	make DOS win.  Added default directories for DOS.

1992-02-18 15:51  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/option.h (1.8): Macroized sub-directory delimiter to
	make DOS win.

1992-02-18 15:47  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/input.scm (1.93): Don't record input events in the input
	history.  If an input event arrives when a keyboard macro is being
	defined, terminate the keyboard macro definition before applying
	the event.

1992-02-18 15:34  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/option.h (1.7): Macroized sub-directory delimiter to
	make DOS win.

1992-02-18 12:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: gcloop.c (9.39), purify.c (9.47), fasdump.c (9.53),
	fasload.c (9.64): Changes for 386 port: Use
	START/END_OPERATOR_RELOCATION and START/END_CLOSURE_RELOCATION.

1992-02-18 12:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.18): Changes for 386 port: Conditionally
	define some of the macros so that a cmpint-md.h file can override
	them.  Use FIRST_OPERATOR_LINKAGE_OFFSET for some of the execute
	cache macros.

1992-02-18 12:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.43): Changes for 386 port: link_cc_block
	needed to be changed to set the block relocation address.

1992-02-18 11:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules2.scm (4.13): Add missing rules
	(eq-test to machine constant) generated by rulrew.scm.

1992-02-18 11:00  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.35): Added the ability to reset
	SCHEME-ENVIRONMENT (and its default value) to 'DEFAULT via
	SET-ENVIRONMENT and SET-DEFAULT-ENVIRONMENT.

1992-02-18 10:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/notify.scm (1.5): Fix pattern in GET-LOAD-AVERAGE-STRING so
	it works on Sony.  Detect case where thread is dead; don't send
	event to it then.  Optimize CHECK-FOR-MAIL.

1992-02-18 10:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/ed-ffi.scm (1.23): Use correct syntax table for "notify".

1992-02-18 09:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/notify.scm (1.4): Reformatting.

1992-02-18 09:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.30): Eliminate redundant call to
	UPDATE-SCREENS!.

1992-02-18 09:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.14): Make sure that redisplay occurs whenever
	any subprocess events occur, and that it is finished if
	interrupted.

1992-02-18 09:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.216): Eliminate additional (and harmful)
	unbinding of local variables in RESET-EDITOR.

1992-02-18 09:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.19): Fix bug in apply rule. 
	The procedure was not being passed in the interface register, and
	the frame size was passed in the wrong register.

1992-02-17 23:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.20): Fix open codings of
	FIXNUM-REMAINDER, FIXNUM-LSH, and unary fixnum predicates.

1992-02-17 23:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr1.scm (1.9): Fix JS opcode.

1992-02-17 23:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.18): Fix bug in
	transmogrifly.	It was inserting too many nulls for the relocation
	pointer.

1992-02-17 22:25  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/notify.scm (1.3): START-NOTIFIER modified per CPH's
	request.

1992-02-17 20:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.14): Fix bug in rule for    
	    (CONS-POINTER (MACHINE-CONSTANT (? type)) (REGISTER (? datum)))

1992-02-17 20:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: instr1.scm (1.8), instrf.scm (1.8): Add
	package comment.

1992-02-17 20:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr2.scm (1.2): Fix bad opcode in a PUSH
	rule.

1992-02-17 20:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.12): Split
	EXTRACT_EXECUTE_CACHE_ADDRESS from
	EXTRACT_OPERATOR_LINKAGE_ADDRESS.  The i386 does not need
	relocation for EXTRACT_EXECUTE_CACHE_ADDRESS, so it is safer.

1992-02-17 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xterm.scm (1.29), tterm.scm (1.13): Make sure that screen
	updates are finished before going into input wait.  Previously
	screen updates could be interrupted by new events, and not resumed
	before input wait.

1992-02-17 17:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.19): Fix uses of
	rtl-target:=machine-register!

1992-02-17 17:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/machin.scm (1.9): Fix defn. of
	machine-register-value-class to agree with
	number-of-machine-registers.

1992-02-17 17:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.13): - Add another rule that
	exapands into PUSH.W &?? - Fix cons-pointer rule.

1992-02-17 17:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulrew.scm (1.7): - Change acos and asin
	rewrites to occur before cse.  - Add a byte-offset-address rule to
	make use of optimized lapgen rule.

1992-02-17 17:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.pkg (1.5): Export
	add-pre-cse-rewriting-rule! from (compiler rtl-optimizer
	rtl-rewriting) because rulrew.scm needs it.

1992-02-17 17:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.17): Fix various incorrect
	lap instructions.

1992-02-17 17:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.17): Change
	object->machine-register! so that it can use a previously-cached pc
	value even if it is going to clobber the register that contains it.

1992-02-17 17:10  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/notify.scm (1.2): If you used mail-and-load-notify, on
	rmail-get-new-mail your entire notify string got set to "".  This
	has been fixed.

1992-02-17 17:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: input.scm (1.92), iserch.scm (1.17), kmacro.scm (1.37),
	prompt.scm (1.153), simple.scm (1.41), tterm.scm (1.12), xterm.scm
	(1.28): Various window-manager events, such as focus selection and
	closing of X windows, are passed back from KEYBOARD-READ as special
	events to be executed by the caller.  Previously, these were
	handled by the X terminal abstraction.	This allows the caller to
	recognize that the user is doing something unusual, and to behave
	accordingly.  For example, incremental search treats such events
	exactly like other complicated editor commands: the search is
	terminated before the command is executed.

1992-02-17 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.122), comred.scm (1.92), curren.scm (1.99),
	edwin.pkg (1.77): Various window-manager events, such as focus
	selection and closing of X windows, are passed back from
	KEYBOARD-READ as special events to be executed by the caller. 
	Previously, these were handled by the X terminal abstraction.  This
	allows the caller to recognize that the user is doing something
	unusual, and to behave accordingly.  For example, incremental
	search treats such events exactly like other complicated editor
	commands: the search is terminated before the command is executed.

1992-02-17 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.215), intmod.scm (1.43): Define new
	variable EDITOR-THREAD-ROOT-CONTINUATION, which is the continuation
	for use when spawning threads in the editor.  Also change the
	environment and syntax-table that the initial *repl* uses to be
	inherited from the REPL that Edwin is invoked from.

1992-02-17 16:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/rerite.scm (1.2): Define
	add-pre-cse-rewriting-rule! so that machines/??/rulrew.scm can use
	it.

1992-02-17 16:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/pmlook.scm (1.8): pattern-lookup was not taking
	care of repeated pattern variables correctly.  It was looking for
	the pattern in the list of values! Patched for now to assume that
	sharing is rare, and thus extra work is done then.
	
	To do handle this Correctly, pattern-variables should be modified
	to replace each occurrence of a pattern variable with a
	pattern-variable + position, where position is false if this is the
	first occurrence of the pattern variable or the index for list-ref
	of the previous value if not.  This avoids the runtime memq, etc.

1992-02-17 16:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseht.scm (4.12): Give preference to registers
	over other expressions, even if they have the same cost.  The RTL
	combiner and rewriting passes can always make for cheaper
	expressions if necessary.

1992-02-16 23:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.16): Fix primitive
	invocation to use code:compiler-primitive-apply instead of
	incorrectly using code:compiler-apply.

1992-02-15 22:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.11): Fix START_CLOSURE_RELOCATION.

1992-02-15 21:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.18): Revert
	register-copy-if-available, and use it correctly.

1992-02-15 21:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.15),
	compiler/machines/i386/lapgen.scm (1.16),
	compiler/machines/i386/rules4.scm (1.4), microcode/cmpintmd/i386.h
	(1.10), microcode/cmpauxmd/i386.m4 (1.9): Remove far calls and
	jumps.	They are not necessary (at least under Mach).

1992-02-15 21:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/insutl.scm (1.9): SIB bytes were all
	flipped (little vs. big endian).

1992-02-15 19:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/i386.h (1.9), cmpauxmd/i386.m4 (1.8): Swap
	order of code_segment and hook offset in the hook layout in memory.
	 I believe this corresponds to the actual format.

1992-02-15 12:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.7): Fix assembly problems.

1992-02-15 11:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.12): Fix paren problem.

1992-02-15 11:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.15): Add
	byte-unsigned-offset-reference.

1992-02-15 11:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules1.scm (1.11), rulfix.scm (1.17):
	Teach the compiler how to use LEA to tag objects and do a three
	operand ADD.

1992-02-15 09:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.14): Bad call to
	target-register-reference.

1992-02-15 09:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules3.scm (1.13), lapgen.scm (1.14):
	Fix addressing mode bug.

1992-02-15 09:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.8), microcode/cmpauxmd/i386.m4
	(1.6), compiler/machines/i386/rules3.scm (1.12),
	compiler/machines/i386/rules4.scm (1.3),
	compiler/machines/i386/lapgen.scm (1.13): Jumps into compiled
	scheme code and out must use far jmp/call instructions, because the
	code segment is not necessarily the same as the data segment.  We
	still assume that the stack segment and the data segment are the
	same.

1992-02-15 02:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.12): Change invoke-interface
	and invoke-interface/call to use MOVB instead of MOVW.

1992-02-14 17:34  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/ed-ffi.scm (1.22): Add mail and load average notification.

1992-02-14 17:30  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.24), modlin.scm (1.13), decls.scm (1.32):
	Add mail and load average notification.

1992-02-14 17:29  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/notify.scm (1.1): Initial revision

1992-02-14 17:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.12): Add i386 (Mach) support.

1992-02-14 17:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.5): interrupt_dlink renamed to
	asm_interrupt_dlink.

1992-02-14 16:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.76.1.1): Adding mail and load average
	notification.

1992-02-14 16:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.4): Remove GCC test.  It seems not
	to work on BSD at all anyway.

1992-02-14 16:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.3): Add test for GCC and accomodate
	BSD's eval that only takes one arg.

1992-02-14 15:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.2): Write most entry points.

1992-02-14 13:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/test-c.c (1.3): Add a way to find out how
	to invoke a procedure from a table of procedures.

1992-02-14 12:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/test-c.c (1.2): Add way to find out how
	external references are done.

1992-02-13 22:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/i386.m4 (1.1): Initial revision

1992-02-13 20:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/test-c.c (1.1): Initial revision

1992-02-13 18:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edtstr.scm (1.21): Fix typo in last change.

1992-02-13 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/winout.scm (1.8): Don't do random call to
	EDITOR-CHAR-READY?.

1992-02-13 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edtstr.scm (1.20): Rename editor input procedures:
	
	    old name		new name
	    ------------------	-------------------
	    EDITOR-CHAR-READY?	EDITOR-PEEK-NO-HANG
	    EDITOR-PEEK-CHAR	EDITOR-PEEK
	    EDITOR-READ-CHAR	EDITOR-READ

1992-02-13 15:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.4): Work around stupid bug in SF.

1992-02-13 14:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules1.scm (1.10), insmac.scm (1.9):
	More changes.

1992-02-13 14:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: insmac.scm (1.8), rules3.scm (1.11),
	lapgen.scm (1.11), rules2.scm (1.4), rules1.scm (1.9): More
	changes.

1992-02-13 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.16): Fix typo that caused "special form"
	to appear on console when the debugger was run under Edwin.

1992-02-13 13:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.9): Fix DIRECTORY-PATHNAME-AS-FILE so it
	accepts "/" as a valid argument.

1992-02-13 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.165): Fix PATHNAME->BUFFER-NAME so it handles
	"/" reasonably.

1992-02-13 11:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: insutl.scm (1.8), machin.scm (1.8): More
	changes.

1992-02-13 11:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/make.scm (1.1): Initial revision

1992-02-13 02:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.pkg (1.4): More changes.

1992-02-13 02:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules1.scm (1.8), lapgen.scm (1.10),
	insmac.scm (1.7), rulflo.scm (1.12), rulfix.scm (1.16), instr1.scm
	(1.7), instrf.scm (1.7), rulrew.scm (1.6), rules2.scm (1.3),
	insutl.scm (1.7): More changes.

1992-02-13 01:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.15): More changes.

1992-02-13 01:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rulfix.scm (1.14), rules3.scm (1.10),
	rulrew.scm (1.5): More changes.

1992-02-13 01:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.11): More changes.

1992-02-13 01:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: instrf.scm (1.5), instrf.scm (1.6): More
	changes.

1992-02-13 00:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: instrf.scm (1.3), instrf.scm (1.4): More
	changes.

1992-02-13 00:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: lapgen.scm (1.9), rulrew.scm (1.4): More
	changes.

1992-02-13 00:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: lapgen.scm (1.8), rulrew.scm (1.3): More
	changes.

1992-02-13 00:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: insmac.scm (1.5), insmac.scm (1.6): More
	changes.

1992-02-13 00:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/machin.scm (1.7): More changes.

1992-02-13 00:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: dassm2.scm (1.2), insmac.scm (1.4): More
	changes.

1992-02-13 00:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/compiler.pkg (1.3): More changes.

1992-02-12 22:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: compiler.sf (1.2), compiler.pkg (1.2):
	More changes.

1992-02-12 22:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/decls.scm (1.1): Initial revision

1992-02-12 22:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: compiler.pkg (1.1), compiler.cbf (1.1),
	compiler.sf (1.1): Initial revision

1992-02-12 22:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: dassm2.scm (1.1), dassm3.scm (1.1):
	Initial revision

1992-02-12 22:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: dassm1.scm (1.2), dassm1.scm (1.3): More
	changes.

1992-02-12 22:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr1.scm (1.6): More changes.

1992-02-12 22:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.9): More changes.

1992-02-12 22:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: coerce.scm (1.1), dassm1.scm (1.1):
	Initial revision

1992-02-12 22:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapopt.scm (1.1): Initial revision

1992-02-12 22:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rgspcm.scm (1.2), insutl.scm (1.6): More
	changes.

1992-02-12 22:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rgspcm.scm (1.1): Initial revision

1992-02-12 21:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/inerly.scm (1.1): Initial revision

1992-02-12 21:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: insmac.scm (1.3), insutl.scm (1.5): More
	changes.

1992-02-12 21:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr1.scm (1.5): More changes.

1992-02-12 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.98): Change OTHER-WINDOW to consider windows
	on other visible screens as possible alternatives.  Fix
	WINDOW-LIVE? to work correctly for windows in screens that aren't
	selected.

1992-02-12 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.111): Variable USE-MULTIPLE-SCREENS now tells
	"other window" commands not to create screens unless it is true;
	however if multiple screens already exist, the windows in them are
	considered for selection along with windows on the current screen. 
	Previously, if USE-MULTIPLE-SCREENS was false, other screens were
	never considered.

1992-02-12 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (14.3): Fix random bugs in
	SUBSTRING-UPPER-CASE? and SUBSTRING-LOWER-CASE?, and tune up a few
	things to take advantage of compiler.

1992-02-12 10:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.11): Add description of
	TRAMPOLINE_ENTRY_POINT.  Update description of
	TRAMPOLINE_BLOCK_TO_ENTRY.  Fix description of ENTRY_PREFIX_LENGTH.

1992-02-12 10:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.42): Use definition of
	TRAMPOLINE_ENTRY_POINT (instead of TRAMPOLINE_BLOCK_TO_ENTRY)
	thereby removing the alignment restrictions on make_trampoline.

1992-02-12 10:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.30): Add definition of
	TRAMPOLINE_ENTRY_POINT which removes alignment restrictions on
	make_trampoline.
	
	Add full table of compiler ports.

1992-02-12 10:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.32): Add definition of
	TRAMPOLINE_ENTRY_POINT which removes alignment restrictions on
	make_trampoline.
	
	Add full table of compiler ports.

1992-02-12 10:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: i386.h (1.7), mips.h (1.11): Add definition
	of TRAMPOLINE_ENTRY_POINT which removes alignment restrictions on
	make_trampoline.
	
	Add full table of compiler ports.

1992-02-12 10:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/vax.h (1.5): Add full table of compiler ports.

1992-02-12 10:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/vax.h (1.4): Add definition of
	TRAMPOLINE_ENTRY_POINT which removes alignment restrictions on
	make_trampoline.

1992-02-12 07:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxctty.c (1.10): Fix typo.

1992-02-12 07:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxctty.c (1.9): Preserve fcntl flags for stdio when
	starting and stopping Scheme.  Also handle EINTR in I/O system
	calls.

1992-02-12 07:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.11): Make sure terminal state is properly
	restored on reentry.

1992-02-12 01:40  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: rmail.scm (1.16), edwin.pkg (1.76): Add hook
	RMAIL-NEW-MAIL-HOOK.  It is run when RMAIL reads new mail.

1992-02-11 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.21): Use new MAKE-SUBPROCESS primitive
	argument to set working directory of subprocess.

1992-02-11 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.13): Change MAKE-SUBPROCESS primitive to
	accept a working directory argument for setting the working
	directory of the subprocess.

1992-02-11 18:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osproc.h (1.6), uxproc.c (1.12), prosproc.c (1.11):
	Change MAKE-SUBPROCESS primitive to accept a working directory
	argument for setting the working directory of the subprocess.

1992-02-11 17:35  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/curren.scm (1.97): Added global-window-modeline-event!

1992-02-11 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.22): Eliminate interrupt window in
	shortcircuit apply.

1992-02-11 16:14  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/: psbmap.h (9.35), psbtobin.c (9.47), bintopsb.c
	(9.50), ppband.c (9.43): Make setup_io take mode arguments to
	prevent text translation on non-Unix systems.

1992-02-11 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.20): Delete synchronous process after use.

1992-02-11 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.19): Close SUBPROCESS-INPUT-CHANNEL when
	done with it.

1992-02-11 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11graph.c (1.22), x11term.c (1.19): Provide default
	resources for X windows.

1992-02-11 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: curren.scm (1.96), wincom.scm (1.110), xterm.scm (1.27):
	Change screen, window, and buffer selection to make it hard to
	select something on a screen that isn't visible.

1992-02-11 13:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11.h (1.13), x11base.c (1.36), x11graph.c (1.21),
	x11term.c (1.18): Primitives to set internal border width and font
	now update the window manager's "normal" hints, so that subsequent
	resizing works properly.

1992-02-11 12:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/insutl.scm (1.4): More changes.

1992-02-11 09:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: lapgen.scm (1.7), rules1.scm (1.7),
	rules3.scm (1.8), rulflo.scm (1.10): @RO -> @RO.B or @RO.W

1992-02-11 09:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/insutl.scm (1.3): More changes.

1992-02-10 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.152): Change BUFFER-VISIBLE? to mean that
	buffer is shown in a window that is visible.

1992-02-10 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.35): Fix typo.

1992-02-10 16:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11.h (1.12), x11base.c (1.34), x11term.c (1.17),
	x11graph.c (1.20): Use resource arguments to window creation
	primitives for looking up defaults as well as for setting the class
	hint.

1992-02-10 10:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/fileio.scm (1.3): OPEN-OUTPUT-FILE was missing
	MERGE-PATHNAMES.

1992-02-10 10:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.214): Implement new procedure QUIT-SCHEME.

1992-02-10 10:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.121): Use new procedure QUIT-SCHEME instead of
	QUIT.

1992-02-10 10:02  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.15): Set region to include only message being
	viewed.

1992-02-10 08:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.109), tparam.c (1.3): Some changes for
	the alpha.

1992-02-10 08:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxtty.c (1.8), uxsock.c (1.8), uxio.c (1.20),
	default.h (9.38), boot.c (9.72), bchgcc.h (9.43), bchdrn.c (1.3),
	bchdmp.c (9.60), findprim.c (9.46): const => CONST

1992-02-10 08:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.30.1.1): Remove ... from open declaration. 
	Some system include files don't have prototypes, and the compilers
	get confused when they see two declarations, one without prototypes
	and the other with ... .  const => CONST

1992-02-10 08:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.69): Move internal EXFUNs to top level. 
	The alpha compiler gets confused.

1992-02-10 08:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.19): Move internal EXFUNs to top level.  The
	alpha compiler gets confused.

1992-02-10 08:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bignum.h (9.27): Make bignum.h use ansidecl.h .

1992-02-10 08:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dstack.h (1.5), error.c (1.2): Remove named
	parameters from prototypes in structure fields.  The Alpha compiler
	does not like them.

1992-02-10 08:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/object.h (9.37): Previous definition of MAKE_OBJECT
	only worked if (sizeof (int)) == (sizeof (long)) .

1992-02-10 08:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.66): Fix alpha definition. ldexp is broken
	for now.

1992-02-10 07:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.120): Use new procedure EXIT-SCHEME instead of
	%EXIT.

1992-02-10 07:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.213): Add new procedure EXIT-SCHEME to first
	exit the editor and then kill Scheme.  This is a workaround for a
	problem that occurs when using termcap and calling %EXIT from
	within the editor: the terminal settings don't seem to be getting
	properly restored.

1992-02-09 10:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instrf.scm (1.2): Change the name of the
	file.

1992-02-09 09:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr1.scm (1.4): Split into two files.

1992-02-09 09:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr2.scm (1.1): Initial revision

1992-02-08 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.33): Fix several type-o's.

1992-02-08 22:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: instr1.scm (1.3), insutl.scm (1.2): More
	changes.

1992-02-08 22:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.7): Fix type-o.

1992-02-08 19:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/insmac.scm (1.2): More changes.

1992-02-08 19:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instr1.scm (1.2): More changes.

1992-02-08 19:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/instrf.scm (1.1): Initial revision

1992-02-08 18:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.6): More changes.

1992-02-08 18:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.9): More changes.

1992-02-08 13:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.13): More changes.

1992-02-08 13:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: instr1.scm (1.1), insutl.scm (1.1):
	Initial revision

1992-02-08 12:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.12): More changes.

1992-02-08 10:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/thread.scm (1.1): Initial revision

1992-02-08 10:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.119), curren.scm (1.95), decls.scm (1.31),
	ed-ffi.scm (1.21), editor.scm (1.212), edwin.ldr (1.23), edwin.pkg
	(1.75), intmod.scm (1.42), make.scm (3.66), screen.scm (1.96),
	unix.scm (1.22), xterm.scm (1.26): This version of Edwin requires
	microcode 11.108 and runtime 14.146.
	
	* Multi-thread code from previous version has been moved to the  
	runtime system.
	
	* Use new reentrant directory-reading support from runtime system.
	
	* New control variables in "basic.scm" give finer control over the 
	 exit options for Edwin.  The 6.001 student system should take	
	advantage of these.
	
	* Screens now have information indicating whether they are visible;
	  commands that use screens avoid using invisible ones where
	possible.    Invisible screens are never updated; they are fully
	updated when	they are made visible again.
	
	* Participate in WM_DELETE_WINDOW protocol; when running under a  
	cooperating window manager (e.g. mwm), commands to delete Edwin's  
	screens are now intercepted and processed appropriately.  When
	there	are multiple screens, the given screen is deleted; if there
	is just   one screen, Edwin exits exactly as if C-x c had been
	typed.
	
	* Participate in WM_TAKE_FOCUS protocol; Edwin is a "locally
	active"   client, meaning that it takes responsibility for managing
	keyboard   focus among its own windows.  This means that switching
	the keyboard   focus to a different Edwin window also informs the
	window manager	 that the focus has been changed.
	
	* Edwin now tracks MapNotify and UnmapNotify events, and uses them
	to   set the visibility information of screens.  This means that it
	is   much harder to switch the focus to an iconified screen.

1992-02-08 10:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: gconst.scm (4.13), make.scm (4.23): Don't integrate
	references to dynamic-state primitives.

1992-02-08 10:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.25), contin.scm (14.6), ed-ffi.scm
	(1.4), emacs.scm (14.11), framex.scm (14.16), global.scm (14.35),
	intrpt.scm (14.9), io.scm (14.29), make.scm (14.33), rep.scm
	(14.23), runtime.pkg (14.133), savres.scm (14.24), syntax.scm
	(14.17), uerror.scm (14.31), unsyn.scm (14.12), unxdir.scm (14.9),
	version.scm (14.146), wind.scm (14.4), wrkdir.scm (14.6): This
	version of the runtime system requires the following corresponding
	versions:
	
	    Microcode 11.108
	    SF 4.23
	    Edwin 3.66
	
	Implement multiple control threads.
	
	* Use new reentrant directory-reading primitives.
	
	* Reimplement DYNAMIC-WIND and FLUID-LET.  The dynamic state is
	split	into a global part, which FLUID-LET bindings, and a local
	part,	which DYNAMIC-WIND binds.  The local part is different for
	each   thread, and the global part is shared.  The new dynamic
	state code   is all written in Scheme, except for the primitive  
	WITH-STACK-MARKER, which is used to inform the continuation parser 
	 about the state changes.
	
	* The continuation parser has been modified to hide the stack
	frames	 made by CALL-WITH-CURRENT-CONTINUATION from the debugger.
	
	* The variable TIMER-INTERRUPT has been removed.  Chances are, you 
	 don't need this now, and this will prevent people from running  
	programs that will screw thread preemption.
	
	* Keyboard interrupts are delivered to a specific thread, which can
	be   accessed with KEYBOARD-INTERRUPT-THREAD and modified by  
	SET-KEYBOARD-INTERRUPT-THREAD!.

1992-02-08 10:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.15): WRITE-DBG-UPCASE-NAME: Don't upcase
	things that aren't symbols or strings.

1992-02-08 09:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.44), interp.c (9.66), osfs.h (1.4),
	prosfs.c (1.7), returns.h (9.40), utabmd.scm (9.61), uxfs.c (1.6),
	version.h (11.108), x11.h (1.11), x11base.c (1.32), x11graph.c
	(1.19), x11term.c (1.16): This microcode will not run versions of
	Edwin prior to 3.66.
	
	* Add new primitive WITH-STACK-MARKER that marks the stack for the 
	 benefit of the continuation parser.
	
	* Implement new set of directory-reading primitives that are  
	reentrant.
	
	Changes to X interface:
	
	* Add support for WM_DELETE_WINDOW and WM_TAKE_FOCUS window manager
	  protocols.
	
	* Add support for Scheme to receive MapNotify and UnmapNotify
	events.
	
	* Window creation primitives allow third argument to be (NAME .
	CLASS)	 meaning set the class hint to those strings.
	
	* Primitive X-WINDOW-SET-CLASS-HINT now takes three arguments
	instead of   four; the first argument was redundant.  The last two
	arguments have	 been reversed.
	
	* New primitive X-WINDOW-SET-INPUT-HINT for use together with  
	WM_TAKE_FOCUS protocol.
	
	* New primitives X-WINDOW-SET-TRANSIENT-FOR-HINT, X-WINDOW-ICONIFY,
	  and X-WINDOW-WITHDRAW.

1992-02-07 21:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/insmac.scm (1.1): Initial revision

1992-02-07 21:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/assmd.scm (1.1): Initial revision

1992-02-07 14:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: gc.scm (14.8), make.scm (14.32), version.scm (14.145):
	Make gc-abort-test act differently during the boot load, rather
	than fail because of an unassigned variable.

1992-02-07 00:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.20),
	compiler/machines/spectrum/rules3.scm (4.31),
	compiler/machines/spectrum/lapgen.scm (4.37): Add
	shortcircuit_apply hooks.

1992-02-06 17:51  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.120): Bug fix: PAGE-INTERIOR-REGION also
	broke when (GROUP-END? POINT) was true and there was no
	PAGE-DELIMITER on the same line.

1992-02-06 17:48  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.119): Bug fix: PAGE-INTERIOR-REGION broke on
	the last page (i.e., beyond the last PAGE-DELIMITER on the page).

1992-02-06 00:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.5): More changes.

1992-02-05 12:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: lapgen.scm (1.4), machin.scm (1.6): More
	changes.

1992-02-05 12:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules3.scm (1.7), rules4.scm (1.2): More
	changes.

1992-02-05 11:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: i386.h (1.5), i386.h (1.6): More changes.

1992-02-05 09:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules3.scm (1.6), lapgen.scm (1.3),
	machin.scm (1.5), rulflo.scm (1.8): More changes.

1992-02-05 00:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rulrew.scm (1.2), rulflo.scm (1.7): More
	changes.

1992-02-04 23:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.11): More changes.

1992-02-04 23:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulrew.scm (1.1): Initial revision

1992-02-04 20:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.31): Rename assembly language entry
	points when !C_FUNC_PTR_IS_CLOSURE.

1992-02-04 20:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.19): Conditionalize for GCC's
	structure return convention: On the HP-PA, GCC passes the address
	of the structure in r28 (ret0), and the called procedure bashes the
	structure allocated by the caller.  What a lose!  GCC does this
	right on the 68k!

1992-02-04 18:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: starbase.scm (1.9), runtime.pkg (14.132): Fix typo.

1992-02-04 18:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.30): Fix conditionalization of
	C_FUNC_PTR_IS_CLOSURE for GCC.

1992-02-04 17:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.29): Add cast in ASM_RESET_HOOK to
	eliminate gcc warning.

1992-02-04 17:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.28): Conditionalize
	C_FUNC_PTR_IS_CLOSURE better.

1992-02-04 13:52  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.14): Fix GC bug in OPERATION/CLOSE in X
	graphics type.

1992-02-04 10:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/xdebug.c (9.29): protoize headers.

1992-02-04 00:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.10): More changes.

1992-02-03 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosio.c (1.7), uxio.c (1.18), uxselect.h (1.2),
	version.h (11.107), x11base.c (1.31): This microcode cannot be used
	with Edwin versions prior to 3.65.
	
	The implementation of UX_select has been changed to return to the
	caller when a Scheme interrupt needs servicing, rather than just
	servicing the interrupt and going back into the select.  This gives
	Scheme code a chance to run and do something useful.
	
	In addition, the primitives CHANNEL-SELECT-THEN-READ and
	X-DISPLAY-PROCESS-EVENTS have been changed to return different
	event codes for the "other output" and "process status change"
	events.  This allows the event-handling code to go directly to the
	handler, rather than trying to figure out which one occurred.

1992-02-03 23:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/obstack.h (1.6): Upgrade obstack.temp to long, because
	int's may not be large enought to hold some of the stuff stored in
	temp.

1992-02-03 23:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: osscheme.c (1.6), debug.c (9.43), uxsig.c (1.21): The
	stack trace interrupt now allows dumping the stack trace to a file.

1992-02-03 23:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/machin.scm (1.4): More changes.

1992-02-03 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: shell.scm (1.9), struct.scm (1.80), tterm.scm (1.10),
	undo.scm (1.49), utils.scm (1.27), wincom.scm (1.109), xterm.scm
	(1.25): This release of Edwin requires microcode 11.107 or later.
	
	Implement new multi-threading system or Edwin.	Inferior REPL
	buffers now evaluate in parallel with the editor.
	
	One widespread effect of this change is that calls to the
	procedures CALL-WITH-CURRENT-CONTINUATION and DYNAMIC-WIND have
	been replaced by CALL-WITH-PROTECTED-CONTINUATION and
	UNWIND-PROTECT, respectively.  This is needed because the dynamic
	state space cannot be used for doing unwind protects -- it is
	constantly being changed as threads are switched.  If someday the
	multi-thread code is integrated with the runtime system, this will
	be fixed at a lower level, and these new procedures can become
	aliases for the old.
	
	Other changes:
	
	* A subtle bug in the command reader was causing undo boundaries to
	be   inserted too often while text was being entered.  This has
	been   fixed, and now undo boundaries are generated every 20
	characters or	so.
	
	* The undo mechanism has been generalized to allow undo tracking to
	be   happening in parallel in several buffers at once.	Now undo
	tracking   only interacts with the undo command when they are in
	the same   buffer.  Additional undo boundaries have been added at
	buffer-switch	points.
	
	* RESET-EDITOR now restores the default bindings of any local  
	variables that are bound when it is called.  Previously this was
	not   done, resulting in the default bindings being lost after a
	reset.
	
	* Tuning of the subprocess output code should be noticeable.

1992-02-03 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.118), bufcom.scm (1.91), buffer.scm (1.151),
	comman.scm (1.68), comred.scm (1.91), curren.scm (1.94),
	artdebug.scm (1.17), decls.scm (1.30), ed-ffi.scm (1.20),
	editor.scm (1.211), edtstr.scm (1.19), edwin.ldr (1.22), edwin.pkg
	(1.74), evlcom.scm (1.34), fileio.scm (1.106), input.scm (1.91),
	intmod.scm (1.41), iserch.scm (1.16), kmacro.scm (1.36), make.scm
	(3.65), process.scm (1.18), prompt.scm (1.152), regexp.scm (1.61),
	regops.scm (1.85), rmail.scm (1.14), screen.scm (1.95): This
	release of Edwin requires microcode 11.107 or later.
	
	Implement new multi-threading system or Edwin.	Inferior REPL
	buffers now evaluate in parallel with the editor.
	
	One widespread effect of this change is that calls to the
	procedures CALL-WITH-CURRENT-CONTINUATION and DYNAMIC-WIND have
	been replaced by CALL-WITH-PROTECTED-CONTINUATION and
	UNWIND-PROTECT, respectively.  This is needed because the dynamic
	state space cannot be used for doing unwind protects -- it is
	constantly being changed as threads are switched.  If someday the
	multi-thread code is integrated with the runtime system, this will
	be fixed at a lower level, and these new procedures can become
	aliases for the old.
	
	Other changes:
	
	* A subtle bug in the command reader was causing undo boundaries to
	be   inserted too often while text was being entered.  This has
	been   fixed, and now undo boundaries are generated every 20
	characters or	so.
	
	* The undo mechanism has been generalized to allow undo tracking to
	be   happening in parallel in several buffers at once.	Now undo
	tracking   only interacts with the undo command when they are in
	the same   buffer.  Additional undo boundaries have been added at
	buffer-switch	points.
	
	* RESET-EDITOR now restores the default bindings of any local  
	variables that are bound when it is called.  Previously this was
	not   done, resulting in the default bindings being lost after a
	reset.
	
	* Tuning of the subprocess output code should be noticeable.

1992-02-03 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.53): Complete rewrite of the paragraph parsing
	code.  The handling of the fill-prefix is no longer like the Emacs
	implementation, but rather matches the Emacs manual: when the
	fill-prefix is in effect, only lines containing the prefix are
	considered to be part of a paragraph -- all other lines are
	ignored.

1992-02-03 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: tparse.scm (1.67), texcom.scm (1.35): Complete rewrite of
	the paragraph parsing code.  The handling of the fill-prefix is no
	longer like the Emacs implementation, but rather matches the Emacs
	manual: when the fill-prefix is in effect, only lines containing
	the prefix are considered to be part of a paragraph -- all other
	lines are ignored.

1992-02-03 19:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.6): More changes.

1992-02-03 19:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/osscheme.h (1.6): Include <stdio.h> because of FILE *.

1992-02-03 19:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.106): Changes to accomodate machines
	where (sizeof (int)) < (sizeof (long)).  Stack traces can now be
	sent to a file instead of the console.

1992-02-03 19:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.20): Fix a declaration problem.

1992-02-03 19:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.19): debug_back_trace now takes a FILE *
	object.  interactive_back_trace reads a file name and uses it, the
	console if none provided.

1992-02-03 19:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: osscheme.h (1.5), osscheme.c (1.5): debug_back_trace
	now takes a FILE * object.

1992-02-03 18:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/xdebug.c (9.28): Fix calls printf to use %ld or %lx
	instead of %d and %x.

1992-02-03 18:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.17): CPP-time uses of false and true now
	use FALSE and TRUE.

1992-02-03 18:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.18): Change return types of speed
	procedures.

1992-02-03 18:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxsock.c (1.7), uxsock.h (1.3): Change arity of
	OS_open_server_socket.

1992-02-03 18:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.c (1.10): Cast return value of UX_PC_VDISABLE.

1992-02-03 18:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utils.c (9.52): Fix calls printf to use %ld or %lx
	instead of %d and %x.

1992-02-03 18:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/storage.c (9.48): CPP-time uses of false and true now
	use FALSE and TRUE.

1992-02-03 18:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/stack.h (9.30): Fix calls printf to use %ld or %lx
	instead of %d and %x.

1992-02-03 18:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxsock.c (1.5): Change arity of
	OS_open_server_socket.

1992-02-03 18:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: primutl.c (9.54), purutl.c (9.43): CPP-time uses of
	false and true now use FALSE and TRUE.

1992-02-03 18:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/osterm.h (1.8): Change return types.

1992-02-03 18:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: interp.c (9.65), lookup.c (9.50), mul.c (9.32):
	CPP-time uses of false and true now use FALSE and TRUE.

1992-02-03 18:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hooks.c (9.43): Change switch to if in Prim_force
	because of compiler bug.

1992-02-03 18:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gccode.h (9.45): Fix calls printf to use %ld or %lx
	instead of %d and %x.

1992-02-03 18:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/extern.h (9.44): CPP-time uses of false and true now
	use FALSE and TRUE.

1992-02-03 18:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: debug.c (9.42), dump.c (9.35): Fix calls printf to
	use %ld or %lx instead of %d and %x.

1992-02-03 18:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bkpt.c (9.27): Fix declaration bug, and pass parameter
	appropriately.

1992-02-03 18:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.65): Add Alpha conditionalization.

1992-02-03 18:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.68), bkpt.c (9.26): CPP-time uses of
	false and true now use FALSE and TRUE.

1992-02-03 17:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.46): CPP-time uses of false and true now
	use FALSE and TRUE.  MAX_CHAR -> UCHAR_MAX from "limits.h"

1992-02-03 17:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.49), bchdmp.c (9.59): CPP-time uses of
	false and true now use FALSE and TRUE.

1992-02-03 09:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.5): More changes.

1992-02-03 01:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.4): More changes.

1992-02-02 12:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.3): More changes.

1992-02-01 15:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.2): More changes.

1992-02-01 10:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulflo.scm (1.1): Initial revision

1992-02-01 09:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules4.scm (1.1): Initial revision

1992-01-31 08:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.9): More changes.

1992-01-30 23:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.5): More changes.

1992-01-30 23:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.4): More changes.

1992-01-30 18:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/starbase.scm (1.8): Eliminate bogus fossil.

1992-01-30 18:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/arith.scm (1.23): Fix typo.

1992-01-30 12:08  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/version.scm (14.144): Change graphics operations to
	receive the device, not just the descriptor, of the graphics object
	on which they are operating.

1992-01-30 09:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/: rules3.scm (1.4), lapgen.scm (1.2),
	rules1.scm (1.6): More changes.

1992-01-30 01:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/lapgen.scm (1.1): Initial revision

1992-01-30 01:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.3),
	compiler/machines/i386/rules2.scm (1.2),
	compiler/machines/i386/rules1.scm (1.5),
	compiler/machines/i386/rulfix.scm (1.8),
	compiler/machines/i386/machin.scm (1.3), microcode/cmpintmd/i386.h
	(1.3): More changes.

1992-01-29 20:10  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/starbase.scm (1.7): Fix bug in last change.

1992-01-29 19:38  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.131), starbase.scm (1.6), x11graph.scm
	(1.13): Change graphics operations to receive the device, not just
	the descriptor, of the graphics object on which they are operating.

1992-01-29 15:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/arith.scm (1.22): Improve the bignum printer.

1992-01-28 23:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.2): More changes.

1992-01-28 16:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.4): More changes.

1992-01-28 09:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules3.scm (1.1): Initial revision

1992-01-28 00:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules2.scm (1.1): Initial revision

1992-01-27 23:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.7): More changes.

1992-01-27 12:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.67): Fix warnings: passing const parameters
	to free.

1992-01-27 09:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.6): More changes.

1992-01-27 06:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.17): Don't depend on read to return a full
	buffer from a pipe.

1992-01-26 23:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.5): More changes.

1992-01-26 11:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.4): More changes

1992-01-25 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.46): Retrying M-. by means of C-x ESC was
	causing M-, to get confused because the information it needed was
	being recorded at the time it was being typed in rather than when
	M-. was run.

1992-01-25 15:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.3): More changes.

1992-01-25 13:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.2): More changes.

1992-01-24 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufmnu.scm (1.118): Fix bug: Buffer Menu mode was unable to
	select buffers that had spaces in their names.	New method,
	identical to that in Emacs, delimits a buffer name with two spaces.
	 Moral: don't put two spaces in your buffer names.

1992-01-24 18:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.16): RUN-SYNCHRONOUS-PROCESS was doing too
	much work in cases where the subprocess was not doing both input
	and output.  Now it optimizes the I/O depending on what is needed.

1992-01-24 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.15): RUN-SYNCHRONOUS-PROCESS was doing too
	much work in cases where the subprocess was not doing both input
	and output.  Now it optimizes the I/O depending on what is needed.

1992-01-24 18:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: grpops.scm (1.15), edwin.pkg (1.73): Add new procedure
	GROUP-COPY-SUBSTRING!.	This copies part of a buffer into a
	pre-allocated string.  This is like GROUP-EXTRACT-STRING except
	that the latter also allocates the string.

1992-01-23 23:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.3): Eliminate more fossils.

1992-01-23 23:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rulfix.scm (1.1): Initial revision

1992-01-23 22:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/rules1.scm (1.2): Remove illegal push
	operation.

1992-01-23 19:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.13): Change SENDMAIL-SEND-IT to run
	sendmail in the background when MAIL-INTERACTIVE is false.  This
	returns control to the user as soon as the process is started and
	the message is successfully written to it.

1992-01-23 19:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.14): Change RUN-SYNCHRONOUS-PROCESS to be a
	little more aggressive about writing data down to a subprocess.

1992-01-23 17:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/i386/machin.scm (1.2): Move value register to
	memory.  Add virtual floating point registers.

1992-01-23 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.13): Fix M-x rmail-expunge so that it doesn't
	change the message displayed unless it is deleted.  In that case,
	it finds a nearby non-deleted message to show instead.

1992-01-23 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.12): Fix stupid think-o in COMINT-LINE-START
	that caused various lossages in Shell mode.

1992-01-23 14:15  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.130): Export GRAPHICS-DEVICE? to the ()
	package.

1992-01-22 18:13  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/x11base.c (1.30): Fix braino in previous bug fix to
	primitive X-FONT-STRUCTURE.

1992-01-22 17:35  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/: x11base.c (1.29), version.h (11.105): Correct bug in
	primitive X-FONT-STRUCTURE.

1992-01-21 23:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.2): Fix comment with register
	allocation.  EBX is now free, the value register is contained in
	memory.

1992-01-20 19:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/i386.h (1.1),
	compiler/machines/i386/machin.scm (1.1),
	compiler/machines/i386/rules1.scm (1.1): Initial revision

1992-01-20 17:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wsize.c (9.31): Fix some minor bugs and accomodate some
	random compilers.

1992-01-20 16:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.104): More ANSI protoization.

1992-01-20 13:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.17): Fix typo in declaration.

1992-01-20 13:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtty.c (1.7): Add ANSI-style declarations
	(prototypes).

1992-01-20 13:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.30): Add ANSI-style declarations (prototypes).

1992-01-20 13:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.16): Fix conflicting declaration.

1992-01-20 12:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/debug.c (9.41): Fix conflicting declaration.

1992-01-20 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.45): Add missing ANSI-style declarations.

1992-01-20 12:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prosfs.c (1.6), prosproc.c (1.10), prosterm.c (1.11):
	Add missing ANSI-style declarations.

1992-01-20 12:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxtty.c (1.6), prosfile.c (1.3): Add missing
	ANSI-style declarations.

1992-01-20 12:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.6): Add missing ANSI-style declarations.

1992-01-20 12:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.15): Add missing ANSI-style declarations.

1992-01-20 11:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ux.h (1.29), ux.c (1.9): Add missing ANSI-style
	declarations.

1992-01-20 11:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: osscheme.c (1.4), dstack.h (1.4): Add missing
	ANSI-style declarations.

1992-01-20 11:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: obstack.c (1.4), obstack.h (1.5): Add missing
	ANSI-style declarations.

1992-01-20 11:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: artutl.c (1.8), flonum.c (9.38): Add missing
	ANSI-style declarations.

1992-01-20 11:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/extern.c (9.32): Add missing ANSI-style declarations.

1992-01-20 11:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dstack.h (1.3): Add ANSI-style declarations for free
	and abort.

1992-01-20 11:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/debug.c (9.40): Add ANSI-style declarations for various
	extern declarations.

1992-01-20 10:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bignum.h (9.26): Add ANSI-style declarations for
	bignum_quotient and bignum_remainder.

1992-01-20 10:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/tparam.c (1.2): Add ANSI-style declarations for tparam,
	tgoto, and tparam1.

1992-01-20 10:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/obstack.c (1.3): Add ANSI-style declaration for
	_obstack_allocated_p.

1992-01-20 08:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookprm.c (1.8): Missing DEFUN.

1992-01-20 08:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookprm.c (1.7): Missing DEFUN.

1992-01-20 08:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prims.h (9.40): Add missing extern declarations.  Make
	Define_Primitive issue ansidecl-style headers.

1992-01-20 08:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.41): Add missing extern declarations.

1992-01-18 23:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.151): Pop down the pop-up completions buffer
	as soon as it is not needed.  Previously, this was only popped down
	manually in shell mode.

1992-01-15 20:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/mul.c (9.31): Protoize headers and extern declarations.

1992-01-15 20:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/load.c (9.31): Protoize headers and extern
	declarations.

1992-01-15 20:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dump.c (9.34): Update date.

1992-01-15 20:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dump.c (9.33): Protoize headers and extern
	declarations.

1992-01-15 16:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.44): Make Findprim generate declarations
	that use ansidecl.

1992-01-15 16:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/comlin.c (1.7): Typo caught by ANSI prototypes.

1992-01-15 12:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/usrdef.h (9.38): Protoize headers.

1992-01-15 12:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prim.h (9.42), psbmap.h (9.34): Protoize headers.

1992-01-15 12:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/extern.h (9.43): Protoize headers.

1992-01-15 12:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: comlin.h (1.4), comlin.c (1.6), cmpintmd/hppa.h
	(1.27), cmpintmd/mc68k.h (1.29), cmpintmd/vax.h (1.3): Update date.

1992-01-15 12:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: comlin.h (1.3), comlin.c (1.5): Protoize headers.

1992-01-15 12:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/vax.h (1.2): Protoize headers.

1992-01-15 12:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: hppa.h (1.26), mc68k.h (1.28): Protoize
	headers.

1992-01-15 11:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.103): Protoize headers.

1992-01-14 23:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.49): Fix edit bugs.

1992-01-14 23:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: lookprm.c (1.6), lookup.h (9.46), lookup.c (9.48):
	Fix edit bugs.

1992-01-14 23:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/regex.h (1.5): Protoize headers.

1992-01-14 23:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/regex.c (1.10): Protoize headers.

1992-01-14 23:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: string.c (9.35), step.c (9.30): Protoize headers.

1992-01-14 22:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/missing.c (9.28): Protoize headers.

1992-01-14 22:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: memmag.c (9.47), gccode.h (9.44): Protoize headers.

1992-01-14 22:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.h (9.45): Protoize headers.

1992-01-14 22:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.47): Protoize headers.

1992-01-14 21:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookprm.c (1.5): Protoize headers.

1992-01-14 21:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: intern.c (9.52), list.c (9.29): Protoize headers.

1992-01-14 21:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: gcloop.c (9.38), hunk.c (9.27): Protoize headers.

1992-01-14 21:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fixnum.c (9.35), artutl.c (1.7): Change date.

1992-01-14 21:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fixnum.c (9.34), flonum.c (9.37): protoize headers.

1992-01-14 21:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/artutl.c (1.6): protoize headers.

1992-01-14 14:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.40): Fix parsing problems in the stub
	section.

1992-01-14 14:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.39): Add #include "ansidecl.h" to the
	section with the stubs for when there is no compiler.

1992-01-14 14:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.17): Move definitions of linkage kinds
	outside the HAS_COMPILER_SUPPORT #ifdef.

1992-01-14 13:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.62): Don't show upper-case aliases of
	lower-case comtab bindings in bindings lists.

1992-01-13 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.21), dired.scm (1.122): Fix handling of
	compressed backup files in Dired.

1992-01-13 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.20): Use new read/write file method hooks to
	implement transparent support for compressed files.  Now Edwin will
	automatically uncompress a compressed file when it is read in, and
	recompress it when it is written back out.  Backups are handled in
	the usual fashion, except that the backup file name ends in "~.Z"
	instead of ".Z~"; this allows compress and uncompress to work
	normally with backup files.

1992-01-13 14:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.105): Add new variables READ-FILE-METHODS and
	WRITE-FILE-METHODS.  These provide hooks for implementing alternate
	methods to read or write files.  The alternate methods can be
	active only for particular buffers or files, if that is desired.

1992-01-13 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debuge.scm (1.44): When salvaging buffers, don't use
	WRITE-REGION, because it does prompting and so forth.  Use the
	lower-level GROUP-WRITE-TO-FILE which does nothing special.

1992-01-13 14:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.90): Add new procedures
	CALL-WITH-TEMPORARY-BUFFER and NEW-BUFFER-NAME.

1992-01-10 17:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.210): Disallow invocation of editor from
	within itself.

1992-01-10 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.8): In SKIP-COMMENTS&LABELS: COLON-LINE-END
	should be ignored unless it is explicitly set by the loop. 
	Initialize it to #F, and test it before use.

1992-01-10 14:03  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/techinfo.scm (1.2): Changed start value of
	techinfo-history-list.

1992-01-10 13:52  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.14), decls.scm (1.29), ed-ffi.scm (1.19),
	edwin.pkg (1.72): Added TechInfo mode (techinfo.scm) as an
	autoload.

1992-01-10 13:47  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/techinfo.scm (1.1): Initial revision

1992-01-09 18:10  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/cinden.scm (1.7): There was an bug in SKIP-COMMENTS&LABELS
	where COLON-LINE-END was initialized to 0. I have initialized it to
	what seems to be the obvious thing. It seems to work, but I really
	have no idea whether it is correct.

1992-01-09 12:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.64): [no log message]

1992-01-09 12:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.16), evlcom.scm (1.33): Fix
	continuation-browser bugs introduced by repl mode.

1992-01-09 12:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comtab.scm (1.61), modefs.scm (1.137), keymap.scm (1.11),
	edwin.pkg (1.71): Totally new implementation of comtabs.  Now
	DEFINE-KEY and DEFINE-PREFIX-KEY handle lower-case letters
	specially: if the corresponding upper-case letter is undefined, it
	is converted into an alias for the lower-case letter.  Additional
	changes: DEFINE-DEFAULT-KEY eliminated (it was unused); comtabs
	support aliases much like Emacs does; internal structure of comtab
	varies depending on the contents of the comtab.

1992-01-09 12:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/calias.scm (1.12): Adjust formatting of pages.	Change
	KEY<? so that keys are sorted first by bucky bits, and then by key
	code.  A special key is always greater than an ordinary character
	with the same bucky bits.

1992-01-09 12:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: modes.scm (1.26), buffer.scm (1.150), autold.scm (1.51),
	fileio.scm (1.104), macros.scm (1.54): * Change MAKE-MODE to accept
	parent mode rather than list of comtabs.
	
	* Rename MODE-COMTAB to MINOR-MODE-COMTAB.
	
	* New procedures MINOR-MODE? and MAJOR-MODE?.
	
	* Eliminate NAME->MODE; use ->MODE instead.

1992-01-08 11:46  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.20): Added args to calls to
	rmail-summary-delete-message-forward.

1992-01-08 11:11  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.19): Added prefix args to delete-forward,
	delete-backward, undelete-forward and undelete-backward.

1992-01-08 10:24  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.18): [no log message]

1992-01-08 01:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.70): Don't export COMTAB-DISPATCH-ALISTS from
	"comtab".

1992-01-07 11:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppanwca.c (1.1): Initial revision

1992-01-07 11:47  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.17): Made rmail-buffer,
	rmail-summary-buffer and rmail-summary-vector per-buffer variables.

1992-01-06 16:50  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/basic.scm (1.117): Added confirmation prompts for
	SUSPEND-EDWIN and SUSPEND-SCHEME.

1992-01-06 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.118): Fix minor bug in M-x narrow-to-page
	that caused the last line of the last page in a buffer to be
	excluded from the narrowing region if it did not end in newline.

1991-12-31 21:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.52): Fix another minor bug in
	FILL-REGION-AS-PARAGRAPH.

1991-12-20 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: array.c (9.44), array.h (9.32), fft.c (9.30), image.c
	(9.32): Change code for arrays of `double' floating-point numbers
	so that they work on machines with floating-point alignment
	constraints.

1991-12-19 16:58  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.12): Fix braino in DEFINE-STRUCTURE.

1991-12-19 15:49  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.11), runtime.pkg (14.129), version.scm
	(14.143): Extend X graphics support to handle the new primitives
	X-FONT-STRUCTURE and X-GRAPHICS-COPY-AREA.
	
	Add a selector operations for X-FONT-STRUCTURE, the object returned
	by the X-FONT-STRUCTURE operation, and for X-CHARACTER-BOUNDS, part
	of the X-FONT-STRUCTURE.

1991-12-19 14:52  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/: x11graph.c (1.18), x11base.c (1.28), version.h
	(11.102): Add graphics primitives:
	
	  X-FONT-STRUCTURE
	    Given an X display and the name of a font, return a Scheme
	    equivalent of the X font structure, which describes the
	dimensions
	    of each character, etc.
	
	  X-GRAPHICS-COPY-AREA
	    Given an X window and coordinates describing two rectangles in
	it,
	    move the contents of the first rectangle to the other.

1991-12-16 16:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/logmer.scm (1.4): Update for changes to CMDL.

1991-12-10 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.25): Do not print a flonum array as a
	number.

1991-12-10 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcdemn.scm (14.4): Simplify GC daemon triggering loop to
	reduce overhead during GC.

1991-12-06 20:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/missing.c (9.27): Fix bugs in frexp: when scaling up or
	down, was not making sure that state variable did not overflow or
	underflow.

1991-12-06 18:20  sasha

	* 6001/nodefs.scm (1.3): Fix unref variable.

1991-12-06 18:14  sasha

	* 6001/nodefs.scm (1.2): Changes to match runtime 14.142.

1991-12-05 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.12): Eliminate random blank line being
	inserted before a forwarded message.

1991-12-05 11:20  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.32): Added support for an
	evaluation-output-receiver which receives the value and output
	resulting from evaluation.

1991-12-05 11:18  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.15): Made consistent with new evaluation
	commands.

1991-12-02 13:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.37): Change to match runtime 14.142.

1991-11-26 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.21): Fix typo.

1991-11-26 16:18  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsrt.scm (1.6): Arthur ran into a problem where
	kill-string seemed to be hanging.  Since kill-string wasn't
	necessary, it was changed to delete-string (the kill ring would
	never be used).

1991-11-26 15:10  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.20), decls.scm (1.28), edwin.pkg (1.69):
	Support for Bochser mode.

1991-11-26 03:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: logmer.scm (1.3), scheme.scm (1.2), make.scm (1.3): Update
	for new pathname implementation.

1991-11-26 03:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufout.scm (1.7), artdebug.scm (1.14), ed-ffi.scm (1.18),
	editor.scm (1.209), edtstr.scm (1.18), edwin.ldr (1.19), edwin.pkg
	(1.68), evlcom.scm (1.31), intmod.scm (1.40), make.scm (3.63),
	modefs.scm (1.136), tterm.scm (1.9), winout.scm (1.7), xterm.scm
	(1.24): Requires runtime 14.142
	
	* Replace scheme-interaction mode by new inferior-repl mode.  The
	new   mode runs a standard REP loop as an inferior coprocess, and
	supports   both the runtime system's debugger and edwin's debugger.
	
	* Transcript buffer used to be same as interaction buffer; now it
	is a   separate buffer.  In addition, it records input expressions
	as well   as the output.
	
	* Extensive reorganization of debugger.  Only substantive change is
	  for compatibility with changes to debugger in runtime system.   
	However, the code is now organized in a somewhat top-down fashion, 
	  which should aid comprehension.
	
	* Delete FRESH-LINE and FRESH-LINES procedures.  Former is
	supported   in runtime system, latter is random.
	
	* Editor cmdl changed to use new interface.

1991-11-26 02:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.40): Fix GUARANTEE-NEWLINES so that it
	inserts the minimum number of newlines to guarantee that there are
	N newlines to the left of point.  Fix INSERT-REGION to work even
	when the region is being inserted back into the same buffer.

1991-11-26 02:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.117): Change page motion commands to use
	MOVE-THING procedure, and to signal failure at beginning and end of
	buffer.

1991-11-26 02:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.102): SUBSTITUTE-COMMAND-KEYS no longer takes
	optional substring range arguments, but instead takes an optional
	buffer argument.  The buffer specifies which comtabs to use for the
	substitution.

1991-11-26 02:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/usrint.scm (1.1): Initial revision

1991-11-26 02:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgcmd.scm (14.13), dbgutl.scm (14.14), debug.scm
	(14.31), ed-ffi.scm (1.3), emacs.scm (14.10), error.scm (14.29),
	fileio.scm (1.2), format.scm (14.5), gc.scm (14.7), gcstat.scm
	(14.5), genio.scm (1.2), global.scm (14.34), input.scm (14.14),
	intrpt.scm (14.8), load.scm (14.31), output.scm (14.12), parse.scm
	(14.17), port.scm (1.2), pp.scm (14.23), rep.scm (14.22),
	runtime.pkg (14.128), savres.scm (14.23), ttyio.scm (1.2),
	version.scm (14.142), where.scm (14.10), wrkdir.scm (14.5): Changes
	in appearance:
	
	* Loading, dumping, and warning messages now preceded by ";".
	
	* New prompts for debugger, where, error, and breakpoint.
	
	* REP loops started by the debugger and where no longer have  
	distinctive prompts.  Now they use the standard prompt.
	
	* PROMPT-FOR-COMMAND-CHAR now echos the character it is prompting
	for.
	
	Changes to port implementation:
	
	* Standard output procedures like WRITE no longer flush the output 
	 port after they write to it.  Instead, they invoke the new
	operation   DISCRETIONARY-FLUSH-OUTPUT (if it exists).	At present,
	only the   console defines this new operation to do anything --
	thus the   console behaves the same as before, unlike other ports. 
	The new   procedure FLUSH-OUTPUT is used to explicitly flush output
	ports.
	
	* New port operations control the blocking and terminal modes of  
	ports:
	
	    PORT/INPUT-BLOCKING-MODE
	    PORT/SET-INPUT-BLOCKING-MODE
	    PORT/WITH-INPUT-BLOCKING-MODE
	
	    PORT/OUTPUT-BLOCKING-MODE
	    PORT/SET-OUTPUT-BLOCKING-MODE
	    PORT/WITH-OUTPUT-BLOCKING-MODE
	
	    PORT/INPUT-TERMINAL-MODE
	    PORT/SET-INPUT-TERMINAL-MODE
	    PORT/WITH-INPUT-TERMINAL-MODE
	
	    PORT/OUTPUT-TERMINAL-MODE
	    PORT/SET-OUTPUT-TERMINAL-MODE
	    PORT/WITH-OUTPUT-TERMINAL-MODE
	
	* New input-port operation READ allows the port to define how a
	READ   is performed.  This permits the implementation of ports that
	read   s-expressions directly.
	
	Changes to CMDL/REPL implementation:
	
	* CMDL-MESSAGE/ACTIVE now passes a port to its argument, rather
	than a	 cmdl object.
	
	* Incompatible changes to arguments and return values of PUSH-CMDL,
	  PUSH-REPL, MAKE-CMDL.  The procedures no longer start the cmdl
	that   they create, but just return it.  It must be explicitly
	started by   calling one of the new procedures CMDL/START or
	REPL/START.
	
	* cmdl objects now have just one bidirectional port instead of two 
	 unidirectional ports.
	
	* The prompting procedures PROMPT-FOR-EXPRESSION,  
	PROMPT-FOR-COMMAND-CHAR, and PROMPT-FOR-CONFIRMATION no longer take
	  a cmdl object as their optional second argument -- instead they
	take   a port.	The new procedure PROMPT-FOR-COMMAND-EXPRESSION is
	similar.
	
	* cmdl objects now support custom operations of various kinds, to  
	allow the customization of behavior.  The previous spawn-child	
	special operation has been eliminated.
	
	Changes to DEBUG/WHERE implementation:
	
	* Debugger command interface now passes a port to each command	
	procedure, in addition to the state object.  The current input and 
	 output ports are not bound to anything in particular while the  
	debugger is running.
	
	* Arguments to debugger command procedures are now optional, so
	that   using X mode in the debugger is more convenient.
	
	Changes to various hooks:
	
	* Most of the hooks that were used by the Emacs interface have been
	  eliminated.  That functionality is now provided by custom port  
	operations.  Hooks that were affected:
	
		debugger output
		prompting
		run and gc lights
		repl presentation
	
	* Definition of keyboard interrupt hooks changed: if the hooks are
	#F,   they are ignored, otherwise they are invoked.  If the
	interrupt   handler hooks return, that means they declined to
	handle the   interrupt, and the standard action is taken.
	
	* HOOK/BEFORE-RESTART has been replaced by HOOK/INVOKE-RESTART. 
	The   new hook is used by INVOKE-RESTART as well as  
	INVOKE-RESTART-INTERACTIVELY, and it defaults to APPLY.
	
	* PARSE-OBJECT/INTERNAL and PARSE-OBJECTs/INTERNAL eliminated.

1991-11-26 01:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.30): Put semicolon in front of
	"Automagically impurifying..." message.

1991-11-26 01:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.12): Use fixnum arithmetic to improve
	performance.  Add RECORD-MODIFIER as alias for RECORD-UPDATER.

1991-11-26 01:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcnote.scm (14.9): Change (CMDL/OUTPUT-PORT
	(NEAREST-CMDL)) to (NEAREST-CMDL/PORT).

1991-11-26 01:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (14.10): Eliminate references to
	CMDL-MESSAGE/STANDARD.

1991-11-25 16:51  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.45): Fix run-on sentence:   "Tags file has
	changed, read new contents" with semicolon.

1991-11-25 08:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.10): Update interface to match
	change to generated code of closure header.

1991-11-22 15:29  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/telnet.scm (1.5): Fix bug: If a telnet buffer's process
	dies and is reused for another invocation of telnet, if the buffer
	is already selected, Edwin complains that there is no process for
	the buffer.

1991-11-22 01:58  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/kmacro.scm (1.35): Fix NAME-LAST-KBD-MACRO; it was passing
	a string to MAKE-COMMAND instead of a symbol.

1991-11-21 05:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: lspcom.scm (1.156), motcom.scm (1.45), rmailsum.scm
	(1.16), texcom.scm (1.34), things.scm (1.83): Change procedures
	MOVE-THING, MOVE-THING-SAVING-POINT, MARK-THING, and KILL-THING to
	take an additional argument that specifies the limit behavior of
	the motion procedure.  This is needed because these procedures were
	being used in contexts that required different behavior -- and
	because they didn't supply it, some of the usages were incorrect.

1991-11-21 05:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/clscon.scm (1.5): WARN procedure doesn't care what the
	default output port is.

1991-11-21 04:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.13): Fix bug: uninitialized variable `lwd'.

1991-11-19 14:44  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/edtstr.scm (1.17): Added support for modified (i.e. with
	shift, control or meta) mouse buttons.

1991-11-15 17:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.21): Replace an instance of %a4
	with dlink.

1991-11-15 00:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: genio.scm (1.1), fileio.scm (1.1), ttyio.scm (1.1),
	port.scm (1.1): Initial revision

1991-11-15 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: input.scm (14.13), make.scm (14.31), output.scm
	(14.11), process.scm (1.14), record.scm (1.11), runtime.pkg
	(14.127), socket.scm (1.3): Redesign ports.  New design supports
	bidirectional ports.  Old code should continue to work, with two
	(unlikely) exceptions: the input/output port pairs for sockets and
	processes are now implemented as bidirectional ports, and closing
	one of the ports automatically closes the other as well.
	
	* New procedures:
	
		CLOSE-PORT
		I/O-PORT?
		MAKE-GENERIC-I/O-PORT
		MAKE-I/O-PORT
		OPEN-I/O-FILE
		PORT/COPY
		PORT/INPUT-CHANNEL
		PORT/OPERATION
		PORT/OPERATION-NAMES
		PORT/OUTPUT-CHANNEL
		PORT/STATE
		PORT?
		SET-PORT/STATE!
		SUBPROCESS-I/O-PORT
	
	* New global variable CONSOLE-I/O-PORT identifies the bidirectional
	  port that communicates with Scheme's console.  CONSOLE-INPUT-PORT
	  and CONSOLE-OUTPUT-PORT are initially EQ? to this port.
	
	* Obsolete procedures:
	
		Old name			New name
		----------------------------	--------------------
		INPUT-PORT/CHANNEL		PORT/INPUT-CHANNEL
		INPUT-PORT/COPY 		PORT/COPY
		INPUT-PORT/CUSTOM-OPERATION	PORT/OPERATION
		INPUT-PORT/OPERATION		PORT/OPERATION
		INPUT-PORT/OPERATION-NAMES	PORT/OPERATION-NAMES
		INPUT-PORT/STATE		PORT/STATE
		OUTPUT-PORT/CHANNEL		PORT/OUTPUT-CHANNEL
		OUTPUT-PORT/COPY		PORT/COPY
		OUTPUT-PORT/CUSTOM-OPERATION	PORT/OPERATION
		OUTPUT-PORT/OPERATION		PORT/OPERATION
		OUTPUT-PORT/OPERATION-NAMES	PORT/OPERATION-NAMES
		OUTPUT-PORT/STATE		PORT/STATE
		SET-INPUT-PORT/STATE!		SET-PORT/STATE!
		SET-OUTPUT-PORT/STATE!		SET-PORT/STATE!
		SUBPROCESS-INPUT-PORT		SUBPROCESS-I/O-PORT
		SUBPROCESS-OUTPUT-PORT		SUBPROCESS-I/O-PORT
	
	  For now these procedures still exist.
	
	* Obsolete input-port operations:
	
		Old name		New name
		--------------- 	---------------------
		BUFFER-SIZE		INPUT-BUFFER-SIZE
		BUFFERED-CHARS		BUFFERED-INPUT-CHARS
		CHANNEL 		INPUT-CHANNEL
		SET-BUFFER-SIZE 	SET-INPUT-BUFFER-SIZE
	
	  INPUT-PORT/OPERATION and INPUT-PORT/CUSTOM-OPERATION perform
	these
	  translations so your programs should continue to work.
	
	* Obsolete output-port operations:
	
		Old name		New name
		--------------- 	---------------------
		BUFFER-SIZE		OUTPUT-BUFFER-SIZE
		BUFFERED-CHARS		BUFFERED-OUTPUT-CHARS
		CHANNEL 		OUTPUT-CHANNEL
		SET-BUFFER-SIZE 	SET-OUTPUT-BUFFER-SIZE
	
	  OUTPUT-PORT/OPERATION and OUTPUT-PORT/CUSTOM-OPERATION perform
	these
	  translations so your programs should continue to work.
	
	* The ASSOCIATED-PORT operation is no longer implemented by any  
	runtime system port.  Ports that previously supported this
	operation   are now bidirectional.
	
	* WITH-INPUT-FROM-FILE and WITH-OUTPUT-TO-FILE no longer close the 
	 port when they are exited abnormally.
	
	* Change cold-boot sequence to permit records to be used in most of
	  runtime system.
	
	* New procedure RECORD-COPY.
	
	* New files "genio.scm", "fileio.scm", and "ttyio.scm" replace old 
	 files "genin.scm", "genout.scm", "filein.scm", "filout.scm",  
	"ttyin.scm", and "ttyout.scm".
	
	* New file "port.scm".

1991-11-14 17:49  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/comred.scm (1.90): Changed %DISPATCH-ON-COMMAND so that it
	does not optimize forward-char and backward-char processing when
	there is a move-point daemon.

1991-11-06 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.121): Change MAKE-DIRED-BUFFER to do
	PATHNAME-SIMPLIFY.

1991-11-06 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.164): Change FIND-FILE-NOSELECT to do
	PATHNAME-SIMPLIFY.

1991-11-06 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.149), filcom.scm (1.163): Change
	SET-BUFFER-DEFAULT-DIRECTORY! to do PATHNAME-SIMPLIFY on its
	argument.

1991-11-06 14:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/info.scm (1.109): Fix minor breakage made in Info that
	happened when pathname changes were made.

1991-11-05 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.162): Use new procedure PATHNAME-SIMPLIFY to
	simplify the default directory of a buffer when it is set.

1991-11-05 15:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: pathnm.scm (14.18), runtime.pkg (14.126), unxpth.scm
	(14.8), wrkdir.scm (14.4): New procedure PATHNAME-SIMPLIFY maps a
	pathname into an equivalent simpler pathname in a host-dependent
	fashion.  Unix provides one simplification: ".." directories are
	removed when doing so does not change the meaning of the pathname.
	
	Additionally, treatment of pathname hosts changed to improve
	performance, and to fix problems with fasdumping of pathname
	objects.  Current implementation permits pathnames to be fasdumped
	and then fasloaded without changing their behavior.

1991-11-04 21:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pathnm.scm (14.17): Fix think-o in ENOUGH-NAMESTRING.

1991-11-04 16:55  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/struct.scm (1.79): Added support for a move-point-daemon
	which gets called when the point is moved.

1991-11-04 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.101): [no log message]

1991-11-04 15:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.116), buffer.scm (1.148), bufmnu.scm
	(1.117), comint.scm (1.11), comred.scm (1.89), debuge.scm (1.43),
	dired.scm (1.120), filcom.scm (1.161), fileio.scm (1.103),
	hlpcom.scm (1.101), info.scm (1.108), make.scm (3.62), modlin.scm
	(1.12), paths.scm (1.11), process.scm (1.13), rmail.scm (1.11),
	sendmail.scm (1.12), shell.scm (1.8), tagutl.scm (1.44), unix.scm
	(1.19), utils.scm (1.26): Changes to match runtime version 14.141.

1991-11-04 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/pasmod.scm (1.44): Change algorithm used to fix up
	whitespace after M-^.

1991-11-04 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.13), editor.scm (1.208), evlcom.scm
	(1.30): Change signalling of errors so that bell is run before the
	debugger confirmation prompt is given.	Reorganize code slightly.

1991-11-04 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.116): Change algorithm used to fix up
	whitespace after M-^.

1991-11-04 15:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/crsend.scm (1.6), base/crstop.scm (1.9),
	base/make.scm (4.89), base/toplev.scm (4.36), etc/comcmp.scm (1.3),
	machines/bobcat/decls.scm (4.30), machines/mips/decls.scm (1.5),
	machines/spectrum/decls.scm (4.30), machines/vax/decls.scm (4.8):
	Changes to match runtime version 14.141.

1991-11-04 15:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/butils.scm (4.5), sf/make.scm (4.22), sf/toplev.scm (4.8),
	cref/conpkg.scm (1.3), cref/forpkg.scm (1.7), cref/make.scm (1.8),
	cref/redpkg.scm (1.4), cref/toplev.scm (1.5): Changes to match
	runtime version 14.141.

1991-11-04 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: ed-ffi.scm (1.2), emacs.scm (14.9), equals.scm (14.4),
	error.scm (14.28), global.scm (14.33), infutl.scm (1.22),
	intrpt.scm (14.7), io.scm (14.28), load.scm (14.30), make.scm
	(14.30), option.scm (14.12), packag.scm (14.10), pathnm.scm
	(14.16), runtime.pkg (14.125), savres.scm (14.22), sfile.scm
	(14.8), starbase.scm (1.5), system.scm (14.8), unxdir.scm (14.8),
	unxprm.scm (1.16), unxpth.scm (14.7), version.scm (14.141),
	wrkdir.scm (14.3): Pathname abstraction redesigned.  New design is
	very similar to the Common Lisp pathname abstraction.
	
	Incompatible changes:
	
	* ->PATHNAME no longer accepts a symbol as an argument.  Only
	strings   and pathnames are valid.
	
	* Procedures eliminated:
	
	    CANONICALIZE-INPUT-FILENAME
	    CANONICALIZE-INPUT-PATHNAME
	    CANONICALIZE-OUTPUT-FILENAME
	    CANONICALIZE-OUTPUT-PATHNAME
	    CANONICALIZE-OVERWRITE-FILENAME
	    CANONICALIZE-OVERWRITE-PATHNAME
	    HOME-DIRECTORY-PATHNAME
	    INIT-FILE-TRUENAME
	    PATHNAME->ABSOLUTE-PATHNAME
	    PATHNAME->INPUT-TRUENAME
	    PATHNAME->OUTPUT-TRUENAME
	    PATHNAME->OVERWRITE-TRUENAME
	    PATHNAME->STRING
	    PATHNAME-COMPONENTS
	    PATHNAME-DEFAULT-HOST
	    PATHNAME-DIRECTORY-PATH
	    PATHNAME-DIRECTORY-STRING
	    PATHNAME-NAME-PATH
	    PATHNAME-NAME-STRING
	    PATHNAME-NEW-HOST
	    PATHNAME-RELATIVE?
	    STRING->PATHNAME
	    SYMBOL->PATHNAME
	
	  The file "old-path.scm" contains emulations for all of these
	  procedures, except PATHNAME-DEFAULT-HOST, PATHNAME-NEW-HOST, and
	  SYMBOL->PATHNAME.
	
	* UNIX/FILE-ACCESS has been renamed to FILE-ACCESS. 
	UNIX/FILE-ACCESS   still exists as a synonym, but is obsolete.
	
	* PATHNAME-DEFAULT no longer accepts a HOST argument.
	
	* DELETE-FILE no longer returns a useful value.  Attempting to
	delete	 a non-existent file signals an error.
	
	* Various "loading" and "dumping" messages now use
	ENOUGH-NAMESTRING   to eliminate redundant part of the filename
	being printed.
	
	* MAKE-PATHNAME checks its arguments for consistency, and signals
	an   error for illegal arguments.
	
	* Representation of pathname directories changed to match Common  
	Lisp.  Directory is now either #F or a list of symbols and strings 
	 with first element either 'ABSOLUTE or 'RELATIVE.
	
	* Unix pathnames now set DEVICE and VERSION to 'UNSPECIFIC.   
	'UNSPECIFIC now means that the field is not used by the operating  
	 system.
	
	* Parsing rules for unix filenames changed: the file type is the
	part   of the name after the last dot, if any.	If the dot occurs
	at the	 beginning or end of the filename, then it doesn't count --
	in that   case there is no type.  Thus, names like "." and ".."
	have no type.
	
	Enhancements:
	
	* New procedures and variables.  Most are defined as in Common
	Lisp.
	
	    *DEFAULT-PATHNAME-DEFAULTS*
	    ->NAMESTRING
	    ->TRUENAME
	    DIRECTORY-NAMESTRING
	    DIRECTORY-PATHNAME
	    DIRECTORY-PATHNAME-AS-FILE
	    ENOUGH-NAMESTRING
	    ENOUGH-PATHNAME
	    FILE-ACCESS
	    FILE-ATTRIBUTES-DIRECT (same as FILE-ATTRIBUTES)
	    FILE-MODIFICATION-TIME-DIRECT
	    FILE-MODIFICATION-TIME-INDIRECT (same as
	FILE-MODIFICATION-TIME)
	    FILE-NAMESTRING
	    FILE-PATHNAME
	    FILE-READABLE?
	    HOST-NAMESTRING
	    PATHNAME-WILD?
	    PATHNAME=?
	
	* All pathname procedures now do an implicit ->PATHNAME on their  
	"pathname" and "defaults" arguments.
	
	* MERGE-PATHNAMES second argument is now optional, and defaults to 
	 *DEFAULT-PATHNAME-DEFAULTS*.  It accepts a third optional
	argument,   DEFAULT-VERSION, which defaults to 'NEWEST.  The
	merging algorithm   has been changed to match Common Lisp.
	
	* *DEFAULT-PATHNAME-DEFAULTS* is updated by  
	SET-WORKING-DIRECTORY-PATHNAME! and CD as long as it is EQ? to the 
	 working directory.
	
	* EQUAL? guaranteed to work on pathnames.
	
	Miscellaneous:
	
	* Old Starbase graphics eliminated.
	
	* Files "unk*.scm" and "vms*.scm" removed.  They will need to be  
	rewritten if this support is desired in the future.

1991-11-04 14:40  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsrt.scm (1.5): Fixed bug in
	rmail-sortable-date-string.  4 Nov 91 became "9111 4", and 01 Nov
	91 became "911101".  Which meant that 4 Nov 91 sorted before 01 Nov
	91.

1991-11-04 13:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.48): New primitive FILE-EQ?.

1991-11-04 11:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdrn.c (1.2): Change the way that drones determine
	whether they are being waited on.  A bitmask is used now with a bit
	per drone.
	
	Reorder some operations to reduce the size of some potential
	interrupt windows.
	
	Use POSIX signal manipulation routines instead of BSD-style
	routines.
	
	Make SIGCONT do a longjmp to avoid a signal deadlock.

1991-11-04 11:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdrn.h (1.2): Increment the drone version number.

1991-11-04 11:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.66): Add -gc-start-position and
	-gc-end-position options for bchscheme.  These options delimit the
	region of the gc file where bchscheme will write, thus two
	bchschemes can share the same file.  The region is locked using
	lockf.
	
	Change sleep_on_pid to sleep_awaiting_drones that uses a bit mask
	specifying which drones we are waiting for.
	
	Reorder some operations to reduce the size of some potential
	interrupt windows.

1991-11-04 11:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: option.h (1.6), option.c (1.12), bchgcc.h (9.42),
	bchdmp.c (9.58): Add -gc-start-position and -gc-end-position
	options for bchscheme.

1991-10-30 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.9): Fix rule for making "locked".

1991-10-30 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.18), sf/pardec.scm (4.5): Eliminate use of
	MAPCAN.

1991-10-30 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/decls.scm (1.4), cref/object.scm (1.4),
	cref/anfile.scm (1.5): Eliminate use of MAPCAN.

1991-10-30 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/decls.scm (4.29), bobcat/inerly.scm
	(1.7), vax/inerly.scm (1.6), vax/decls.scm (4.7): Eliminate use of
	MAPCAN.

1991-10-30 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/syerly.scm (1.8), base/constr.scm (1.2),
	fgopt/param.scm (1.3), machines/spectrum/decls.scm (4.29):
	Eliminate use of MAPCAN.

1991-10-30 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.22): Fix $Header$ line, various broken
	formatting, and repaginate.

1991-10-29 17:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.36), bigprm.c (1.2), bitstr.c (9.49),
	bkpt.c (9.25), boot.c (9.71), char.c (9.29), comutl.c (1.21),
	critsec.h (1.2), daemon.c (9.29), debug.c (9.39), dfloat.c (1.3),
	extern.c (9.31), extern.h (9.42), fasdump.c (9.52), fasload.c
	(9.63), interp.c (9.64), osscheme.c (1.3), primutl.c (9.53),
	prosenv.c (1.5), prosfs.c (1.5), prosproc.c (1.9), prosterm.c
	(1.10), prostty.c (1.3), pruxenv.c (1.5), pruxfs.c (9.47),
	pruxsock.c (1.4), string.c (9.34), tterm.c (1.2), utils.c (9.51),
	uxsig.c (1.18), uxtrap.c (1.16), vector.c (9.34), x11base.c (1.27),
	cmpintmd/hppa.h (1.25): Protoize many functions and their extern
	declarations.

1991-10-29 17:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.c (1.11): Split the actual search in
	search_path_for_file into search_for_library_file so that other
	parts of the microcode can call it without terminating in case of
	failure.
	
	Change the default values of some bchscheme options.

1991-10-29 17:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.h (1.5): Split the actual search in
	search_path_for_file into search_for_library_file so that other
	parts of the microcode can call it without terminating in case of
	failure.

1991-10-29 17:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.64): Define HPPA_QUAD_MASK and re-write
	ADDRESS_TO_DATUM to use it so that the bchscheme windows can be in
	a different quadrant.

1991-10-29 17:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdrn.h (1.1), bchdrn.c (1.1), bchutl.c (1.1):
	Initial revision

1991-10-29 17:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.65), bchgcc.h (9.41), bchpur.c (9.56),
	bchdmp.c (9.57), bchgcl.c (9.43): Major overhaul of bchscheme:	 -
	Bchscheme can now overlap I/O by using shared memory and drone	  
	processes.    - Bchscheme parameters can be re-set while running.  
	   Only the gc-file is specified exclusively from the command line.
	   - Many statistics are taken and can be read and manipulated from
	scheme.

1991-10-29 17:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.100): Major overhaul of bchscheme:   -
	Bchscheme can now overlap I/O by using shared memory and drone	  
	processes.    - Bchscheme parameters can be re-set while running.  
	   Only the gc-file is specified exclusively from the command line.
	   - Many statistics are taken and can be read and manipulated from
	scheme.
	
	Protoize many functions and their declarations.

1991-10-29 09:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.27), load.scm (14.29), pathnm.scm
	(14.15), runtime.pkg (14.124), sfile.scm (14.7), uerror.scm
	(14.29), unxprm.scm (1.15): Introduce new condition type
	FILE-OPERATION-ERROR to handle errors generated by all file and
	directory primitives.  Consequently eliminate FILE-TOUCH-ERROR and
	OPEN-FILE-ERROR.

1991-10-29 08:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osfs.h (1.3), prosfs.c (1.4), pruxfs.c (9.46),
	utabmd.scm (9.60), ux.h (1.28), uxfs.c (1.5): Change all primitives
	that use the `stat' and `lstat' system calls to check for EINTR,
	and to signal system-call errors if the file's existence cannot be
	determined.  Change the FILE-EXISTS? primitive to return zero
	(instead of #F, as previously) if the file being tested is a
	symbolic link but it doesn't point at anything.

1991-10-29 08:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/things.scm (1.82): Fix bug in limit handling of motion
	pairs.

1991-10-29 08:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.12): Internal restructuring of previous
	change.

1991-10-29 08:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lspcom.scm (1.155): Minor non-functional tweaks.

1991-10-29 08:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.67), cinden.scm (1.6), c-mode.scm (1.48):
	Fix numerous bugs in C indentation code.  Upgrade C mode and C
	indentation to standard of Emacs 18.57.

1991-10-29 08:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.147): Extend VARIABLE-LOCAL-VALUE and
	REF-VARIABLE to handle a mark or a group in place of a buffer
	argument.

1991-10-29 08:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.25), uproc.scm (1.3): Compiler can
	output multiclosures that are not compiled closure objects, but
	vectors.  The debugging code was never updated to handle this case.

1991-10-29 08:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.13): When associating ports of a process,
	must associated in both directions; previously the association was
	only made from the second port to the first.

1991-10-26 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/print.scm (1.4): Eliminate SHELL-COMMAND-REGION.

1991-10-26 17:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.66): Eliminate SHELL-COMMAND-REGION.

1991-10-26 17:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.23): Add a few new indentation methods.

1991-10-26 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.13), manual.scm (1.7): Move variable
	definition from "manual" to "loadef".

1991-10-26 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.119), manual.scm (1.6), print.scm (1.3),
	process.scm (1.11), rmail.scm (1.10), sendmail.scm (1.11): M-x
	shell-command and M-x shell-command-on-region changed to make
	process's working directory be the current buffer's default
	directory.  Procedures SHELL-COMMAND and RUN-SYNCHRONOUS-SUBPROCESS
	changed to permit specification of this directory, and also to
	specify whether PTYs should be used.  SHELL-COMMAND-ON-REGION
	eliminated because SHELL-COMMAND now takes an input-region
	argument.

1991-10-26 12:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.26), io.scm (14.27), load.scm (14.28),
	pathnm.scm (14.14), sfile.scm (14.6), uerror.scm (14.28): When
	file- or directory-opening primitives get errors, signal those
	errors as open-file-error conditions.  In those cases, don't use
	another condition as the explanation: create a meaninful error
	string from the error's context.
	
	This change has these effects:
	
	* All file/directory-opening primitives now signal the same
	condition.
	
	* RETRY and USE-VALUE handlers are available whenever that
	condition   is signalled; previously these handlers were only
	sometimes   available, and there was no reasonable way to provide
	them when they	 were not.

1991-10-25 10:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.3): Exclude "documentation" and "etc" from
	compiler RCS.log.

1991-10-25 08:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/compiler.sf (1.13),
	mips/compiler.sf-big (1.3), mips/compiler.sf-little (1.3): Don't
	generate full cref.

1991-10-25 08:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/: machin.scm (4.8), make.scm (4.88),
	rulrew.scm (1.2): * Introduce new RTL expression type
	CONS-NON-POINTER and change   appropriate instances of CONS-POINTER
	to use the new type.
	
	* Replace RTL expression type @ADDRESS->FLOAT with new type  
	OBJECT->FLOAT.
	
	* Introduce new internal switch USE-PRE/POST-INCREMENT?.  Change
	code   generation of in-line consing to pay attention to this
	switch.
	
	* Merge common parts of "machine/make" into new file "base/make".
	
	On MIPS:
	
	* Change code sequence that assigns type codes to assume that the
	type   field has a known value.  This eliminates one instruction in
	every	type-code assignment.  It assumes that the data segment
	bits have a   certain value, but the microcode already does this.
	
	* Cache immediate constants in registers, and remember which
	registers   contain which constants.  (This should be improved by
	noticing when	arithmetic operations are done on known constants
	and cacheing the   results.)
	
	* Set USE-PRE/POST-INCREMENT? to false, saving one instruction in  
	every CONS, and multiple instructions in each call to VECTOR.

1991-10-25 08:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: machin.scm (4.24), make.scm (4.88),
	rulflo.scm (4.33), rulrew.scm (1.4): * Introduce new RTL expression
	type CONS-NON-POINTER and change   appropriate instances of
	CONS-POINTER to use the new type.
	
	* Replace RTL expression type @ADDRESS->FLOAT with new type  
	OBJECT->FLOAT.
	
	* Introduce new internal switch USE-PRE/POST-INCREMENT?.  Change
	code   generation of in-line consing to pay attention to this
	switch.
	
	* Merge common parts of "machine/make" into new file "base/make".
	
	On MIPS:
	
	* Change code sequence that assigns type codes to assume that the
	type   field has a known value.  This eliminates one instruction in
	every	type-code assignment.  It assumes that the data segment
	bits have a   certain value, but the microcode already does this.
	
	* Cache immediate constants in registers, and remember which
	registers   contain which constants.  (This should be improved by
	noticing when	arithmetic operations are done on known constants
	and cacheing the   results.)
	
	* Set USE-PRE/POST-INCREMENT? to false, saving one instruction in  
	every CONS, and multiple instructions in each call to VECTOR.

1991-10-25 08:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/machin.scm (1.6): * Introduce new RTL
	expression type CONS-NON-POINTER and change   appropriate instances
	of CONS-POINTER to use the new type.
	
	* Replace RTL expression type @ADDRESS->FLOAT with new type  
	OBJECT->FLOAT.
	
	* Introduce new internal switch USE-PRE/POST-INCREMENT?.  Change
	code   generation of in-line consing to pay attention to this
	switch.
	
	* Merge common parts of "machine/make" into new file "base/make".
	
	On MIPS:
	
	* Change code sequence that assigns type codes to assume that the
	type   field has a known value.  This eliminates one instruction in
	every	type-code assignment.  It assumes that the data segment
	bits have a   certain value, but the microcode already does this.
	
	* Cache immediate constants in registers, and remember which
	registers   contain which constants.  (This should be improved by
	noticing when	arithmetic operations are done on known constants
	and cacheing the   results.)
	
	* Set USE-PRE/POST-INCREMENT? to false, saving one instruction in  
	every CONS, and multiple instructions in each call to VECTOR.

1991-10-25 02:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.pkg (1.34), machin.scm
	(4.26), make.scm-68020 (4.88), make.scm-68040 (4.88), mc68ktgl.scm
	(1.2), rules1.scm (4.36), rulrew.scm (1.4): * Introduce new RTL
	expression type CONS-NON-POINTER and change   appropriate instances
	of CONS-POINTER to use the new type.
	
	* Replace RTL expression type @ADDRESS->FLOAT with new type  
	OBJECT->FLOAT.
	
	* Introduce new internal switch USE-PRE/POST-INCREMENT?.  Change
	code   generation of in-line consing to pay attention to this
	switch.
	
	* Merge common parts of "machine/make" into new file "base/make".
	
	On MIPS:
	
	* Change code sequence that assigns type codes to assume that the
	type   field has a known value.  This eliminates one instruction in
	every	type-code assignment.  It assumes that the data segment
	bits have a   certain value, but the microcode already does this.
	
	* Cache immediate constants in registers, and remember which
	registers   contain which constants.  (This should be improved by
	noticing when	arithmetic operations are done on known constants
	and cacheing the   results.)
	
	* Set USE-PRE/POST-INCREMENT? to false, saving one instruction in  
	every CONS, and multiple instructions in each call to VECTOR.

1991-10-24 20:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.61): [no log message]

1991-10-24 20:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/mips/lapgen.scm (1.8),
	machines/mips/machin.scm (1.5), machines/mips/make.scm-big (4.88),
	machines/mips/make.scm-little (4.88), machines/mips/rules1.scm
	(1.5), machines/mips/rules2.scm (1.2), machines/mips/rules3.scm
	(1.10), machines/mips/rules4.scm (1.2), machines/mips/rulfix.scm
	(1.4), machines/mips/rulflo.scm (1.6), machines/mips/rulrew.scm
	(1.2), rtlbase/rtlcon.scm (4.22), rtlbase/rtlexp.scm (4.18),
	rtlbase/rtlty1.scm (4.19), rtlgen/opncod.scm (4.45),
	rtlopt/rcompr.scm (1.12), rtlopt/rinvex.scm (1.6): * Introduce new
	RTL expression type CONS-NON-POINTER and change   appropriate
	instances of CONS-POINTER to use the new type.
	
	* Replace RTL expression type @ADDRESS->FLOAT with new type  
	OBJECT->FLOAT.
	
	* Introduce new internal switch USE-PRE/POST-INCREMENT?.  Change
	code   generation of in-line consing to pay attention to this
	switch.
	
	* Merge common parts of "machine/make" into new file "base/make".
	
	On MIPS:
	
	* Change code sequence that assigns type codes to assume that the
	type   field has a known value.  This eliminates one instruction in
	every	type-code assignment.  It assumes that the data segment
	bits have a   certain value, but the microcode already does this.
	
	* Cache immediate constants in registers, and remember which
	registers   contain which constants.  (This should be improved by
	noticing when	arithmetic operations are done on known constants
	and cacheing the   results.)
	
	* Set USE-PRE/POST-INCREMENT? to false, saving one instruction in  
	every CONS, and multiple instructions in each call to VECTOR.

1991-10-24 20:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comint.scm (1.10), curren.scm (1.93), decls.scm (1.27),
	regexp.scm (1.60), shell.scm (1.7), simple.scm (1.39), syntax.scm
	(1.74), telnet.scm (1.4): Include the integrable definitions from a
	few basic files throughout the editor, to reduce space and increase
	speed.

1991-10-24 20:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/make.scm (4.88): [no log message]

1991-10-23 02:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.18): Primitive DIRECTORY-CLOSE must be called
	to have any effect.  Stupid typo just inserted references to the
	primitive in the effect position.

1991-10-22 08:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.118): * Fix code that extracts filename from
	dired line so that it handles	symbolic links correctly.
	
	* Fix DIRED-REVERT-BUFFER to keep point on the same filename line
	if   possible.
	
	* Fix DIRED-COPY-FILES: when a condition handler returns it means
	that   it has declined to handle the condition; if it handles the
	condition   it must throw.
	
	* Repaginate.

1991-10-22 08:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.5): Fix RENAME-FILE and DELETE-FILE so that
	they work on symbolic links that point to nonexistent files.

1991-10-22 06:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/manual.scm (1.5): Improve NUKE-NROFF-BS a little more:
	speed up nuke loops, generalize header pattern to handle hyphens
	within section number, simplify nuking of blank lines at buffer
	start.

1991-10-22 05:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (4.12): RTL comment should precede
	prefix instructions in output.	That way all instructions generated
	as a result of that RTL will appear between that comment and the
	next.

1991-10-22 05:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn3.scm (4.6): To reduce code space, use ASSOC
	to compare literals rather than ASSV.  Since side-effects are not
	permitted on them, this should be harmless.

1991-10-21 19:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: argred.scm (1.32), comred.scm (1.88), edwin.pkg (1.65):
	Change command reader to preserve message across argument commands.
	 Fix undo of self-insert characters.

1991-10-21 08:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/manual.scm (1.4): Various improvements to NUKE-NROFF-BS:
	speed up implementation, particularly the removal of underlining
	and overstriking; remove "Reformatting page" message if one
	appears; remove generic footers; remove blank lines at end.

1991-10-21 08:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.150): Make "m" key in Info mode default to
	the current menu item, if there is one.

1991-10-19 03:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/strpad.scm (1.6): Fix bug that caused Dired to print all of
	the "to be deleted" file names on a single line, sending the
	newlines to the wrong port.

1991-10-18 12:02  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: info.scm (1.107), prompt.scm (1.149): Make "m" key in
	Info mode default to the current menu item, if there is one.

1991-10-18 07:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/make.scm (4.87): [no log message]

1991-10-18 05:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.9): Update to match revision
	4.30 of "machines/bobcat/rules3.scm".

1991-10-18 05:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/compiler.sf (1.4): Don't generate full cref
	by default.

1991-10-18 04:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/compiler.pkg (1.8): Update to match
	revision 1.32 of "machines/bobcat/comp.pkg".

1991-10-17 05:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/flonum.c (9.36): BSD4.3 does not declare errno in
	<errno.h> -- unlike modern versions of unix -- so must add extern
	declaration.

1991-10-16 18:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxutil.c (1.4): Add a fflush to userio_confirm.

1991-10-15 20:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.h (1.27), ux.h (1.16.1.3): Recent versions of
	SunOS have POSIX signals.

1991-10-15 14:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.17): Modified by Max Hailperin
	<max@nic.gac.edu> to support Schematik-style interrupts if the
	environment variable USE_SCHEMATIK_STYLE_INTERRUPTS is defined. 
	What this means is that the following signals are redefined to
	generate the corresponding keyboard interrupt (to avoid the
	unreliable behavior of the the interactive interrupt handler):
	
	  signal     keyboard interrupt
	  -----      ------------------
	  SIGIOT     control-x
	  SIGQUIT    control-u
	  SIGHUP     control-b

1991-10-14 19:51  Thanos Siapas <thanos@zurich.ai.mit.edu>

	* microcode/array.c (9.43): Fix two problems that manifested
	themselves on the nitpicky snakes: - array-set! could cause an
	overflow exception when reading un-initialized garbage. 
	ARRAY-ALLOCATE now initializes all array components to 0.  -
	array-set! could cause an underflow exception when storing a valid
	double too small for a float.  It now silently stores 0.
	
	There are other problems left (overflow when storing a large
	number), etc, but...

1991-10-12 21:50  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/linden.scm (1.122): Make "WITH-" expressions do the right
	thing.	This should cause on problems with forms like
	WITHOUT-INTERRUPTS, since I've included a hyphen after "with".

1991-10-11 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.64): [no log message]

1991-10-11 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.60): [no log message]

1991-10-10 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.10): Be more careful about order of events
	in M-x shell-command-on-region when the prefix arg is given.  Make
	sure that the output replaces the input atomically.

1991-10-10 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.135): Implement M-x shell-command and M-x
	shell-command-on-region.  Bind them to M-! and M-| respectively.

1991-10-10 23:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: process.scm (1.9), edwin.pkg (1.63): Implement M-x
	shell-command and M-x shell-command-on-region.	Bind them to M-!
	and M-| respectively.

1991-10-10 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.108): Implement M-x compare-windows.

1991-10-10 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.43): In M-x visit-tags-table, if the user
	types something that looks like a directory, then treat it as a
	directory.  Previously it only did this if the file was actually a
	directory.

1991-10-10 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.160): Don't ignore pathname-version when
	generating buffer name.  Ignoring it is confusing on unix
	filenames.  Perhaps this should be made operating-system specific.

1991-10-10 18:54  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.9): Make RMAIL update mode line when
	SHOW-MESSAGE is called and there are no messages.  This makes the
	mode line correct when all the messages are deleted and expunged. 
	Previously, the mode line stayed as it was when RMAIL last
	displayed a message (before it was deleted).

1991-10-09 21:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: rcs.sf (1.5), rcs.pkg (1.4): Move to regular Scheme source
	directories.

1991-10-09 21:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: rcs.pkg (1.3), rcs.sf (1.4): Adjustments to support
	multiple binary directories.

1991-10-08 17:46  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.6): Cached the current working directory to
	avoid needless calls to the unix getcwd. It is put here, so that
	the call to get_wd() in options.c will cause the cache to fill
	BEFORE the heap and constant spaces get allocated. This way it is
	much more likely that the fork that getcwd tries to do will be
	successful.

1991-10-08 17:42  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/option.c (1.10): Changed parse_path_string() to make
	sure that get_wd is called so that the unix getcwd is called now,
	before it allocates heap space. This is because getcwd forks off a
	new process and we want to do that before the scheme process gets
	too big.

1991-10-04 02:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.106): Improve performance of m command -- it
	was very slow on large menus.

1991-10-04 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/motcom.scm (1.44): Fix bug in M-x goto-char -- it was
	counting characters from the narrowed start of the buffer, when it
	should have ignored narrowing.

1991-10-04 02:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.207): Guarantee that all buffer-local
	variables are unbound when user's init file is loaded.

1991-10-03 17:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tximod.scm (1.16): INDENT-TABS-MODE should be off in
	Texinfo files.

1991-10-03 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.51): Fix fencepost error that sometimes caused
	extra newline to be inserted at end of paragraph being filled.

1991-10-03 15:48  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.15): Minor change to
	rmail-make-basic-summary-line so that dates of the form "02 Oct 91"
	generate summary lines of the form " 2-Oct" not "02-Oct".

1991-10-03 13:47  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/telnet.scm (1.3): Make telnet accept port number after
	hostname.

1991-10-03 06:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/shell.scm (1.6): Add directory tracking for popd and pushd
	shell commands.  Add new command M-x shell-resync-dirs.

1991-10-02 17:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.23): Add a call to x-window-set-class-hint
	when a window is created, so the window manager can tell what
	resource to use.

1991-10-02 17:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: x11graph.c (1.17), x11base.c (1.26), prename.h (1.5),
	version.h (11.99): Rename x-graphics-set-class-hint to
	x-window-set-class-hint.

1991-10-02 05:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.8): Don't unregister a closed channel -- it
	signals an error.

1991-10-02 05:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/telnet.scm (1.2): Eliminate duplicate definition of
	variable.

1991-10-02 05:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tximod.scm (1.15): Add simple insertion commands to Texinfo
	mode.

1991-10-02 05:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/things.scm (1.81): Fix typo in COMPUTE-HORIZONTAL-SPACE.

1991-10-02 04:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.115): Fix INDENT-FOR-TAB-COMMAND so it pays
	attention to the value of INDENT-TABS-MODE.

1991-10-01 17:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: pardec.scm (4.4), make.scm (4.21): Eliminate
	INTEGRATE-PRIMITIVE-PROCEDURES declaration.

1991-10-01 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/rcs.sf (1.3): Eliminate explicit load of CREF utility.

1991-09-25 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: posixtyp.h (1.4), pruxenv.c (1.4): Add `time_t' and
	change type of argument to `ctime' to be a pointer to that type.

1991-09-25 16:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/obstack.h (1.4): Fix casting bug in __INT_TO_PTR.

1991-09-25 14:36  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.76): Make previous bug fix slightly faster.

1991-09-25 14:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.75): Fix number-of-arguments bug calling
	RE-SEARCH-FORWARD from COUNT-MATCHES command.

1991-09-24 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/default.h (9.37): Eliminate incorrect ";" from
	definition of Declare_Fixed_Objects.

1991-09-24 13:53  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.8): Fixed a bug in parse-file-inboxes which
	used the wrong point as the end of the search.

1991-09-20 16:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/print.scm (1.2): Get rid of unreferenced variable NAME left
	over from translation from Emacs Lisp lpr.el package.

1991-09-20 16:46  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/print.scm (1.1): Initial revision

1991-09-20 16:46  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.12), edwin.pkg (1.62), ed-ffi.scm (1.17),
	decls.scm (1.26): Add printer output commands LPR-BUFFER,
	PRINT-BUFFER, LPR-REGION, and PRINT-REGION.

1991-09-20 09:35  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/dired.scm (1.117): Fix major mode description to reflect
	previous change:
	
	Bind DIRED-FLAG-FILE-FOR-COPY to #\k instead of #\C.  #\C is
	already bound to DIRED-COMPRESS.

1991-09-20 09:34  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/dired.scm (1.116): Bind DIRED-FLAG-FILE-FOR-COPY to #\k
	instead of #\C.  #\C is already bound to DIRED-COMPRESS.

1991-09-20 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/conpkg.scm (1.2): Eliminate use of
	INTEGRATE-PRIMITIVE-PROCEDURES declaration.

1991-09-19 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/prgcop.scm (1.3): Eliminate use of
	INTEGRATE-PRIMITIVE-PROCEDURES declaration.

1991-09-19 18:12  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/comint.scm (1.9): Fix bug that makes completion on an empty
	filename break.

1991-09-18 18:47  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.159): Make PROMPT-FOR-INPUT-TRUENAME accept
	files that are not directories.  The COPY-FILE, DELETE-FILE, and
	RENAME-FILE commands, which don't work on directories anyway, will
	then refuse to accept directories as arguments.

1991-09-18 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.140): Redefine #!optional and #!rest to
	be something distinct from symbols.

1991-09-18 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: parse.scm (14.16), unpars.scm (14.24), runtime.pkg
	(14.123): Redefine #!optional and #!rest to be something distinct
	from symbols.

1991-09-18 15:25  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/manual.scm (1.3): Fix bug in MANUAL-ENTRY that prevents it
	understanding, e.g., tty(4).
	
	Add removal of footers to NUKE-NROFF-BS.

1991-09-18 11:59  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/manual.scm (1.2): Add autoload library to display UNIX
	manual pages.

1991-09-18 09:55  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: make.scm (3.59), edwin.pkg (1.61), loadef.scm (1.11),
	ed-ffi.scm (1.16), decls.scm (1.25): Add autoload library to
	display UNIX manual pages.

1991-09-17 18:43  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.74): Fix typo.

1991-09-17 16:36  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/manual.scm (1.1): Initial revision

1991-09-17 16:32  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.7): Fixed a bug in rmail-reply.  If there was
	no Subject: line in the message being replied to, a (string-append
	"Re: " ()) occurred.

1991-09-17 15:03  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.114): Fix bug preventing INDENT-RIGIDLY from
	accepting multiplier autoarguments.

1991-09-17 10:53  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.12): Get rid of unused procedure.

1991-09-17 10:51  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.11): Get rid of unreferenced variables.

1991-09-17 10:44  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/make.scm (3.58): Improve Edwin debugger:
	
	  Make RETURN-TO and RETURN-FROM evaluate the previous expression
	  instead of prompting for an expression to evaluate.
	
	  Provide evaluation commands that do and don't evaluate in the
	dynamic
	  state of the continuation.  Commands that evaluate in the dynamic
	  state of the continuation will have their output appear wherever
	the
	  program would have sent its output had no error occured, and
	fluid
	  variables will be bound as they would appear in the program.
	  Commands that do not evaluate in the dynamic state of the
	  continuation will have their output appear in the debugger
	buffer,
	  and fluid variables will be bound as they would upon leaving the
	  continuation.
	
	  Rearrange some key bindings.
	
	  Improve handling of restarts.

1991-09-17 10:05  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.102): Change NORMAL-MODE to evaluate
	variables in "Edwin Variables:" section of a buffer in the (edwin)
	package.

1991-09-14 16:29  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.10): Make RETURN-TO and RETURN-FROM
	evaluate the previous expression instead of prompting for an
	expression to evaluate.
	
	Provide evaluation commands that do and don't evaluate in the
	dynamic state of the continuation.  Commands that evaluate in the
	dynamic state of the continuation will have their output appear
	wherever the program would have sent its output had no error
	occured, and fluid variables will be bound as they would appear in
	the program.  Commands that do not evaluate in the dynamic state of
	the continuation will have their output appear in the debugger
	buffer, and fluid variables will be bound as they would upon
	leaving the continuation.
	
	Rearrange some key bindings.
	
	Improve handling of restarts.

1991-09-12 19:45  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.60): Export debugger variable
	EDWIN-VARIABLE$DEBUGGER-CONFIRM-RETURN? .

1991-09-12 19:31  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.29): Make EVALUATE-REGION return the value of
	the last expression it evaluates, or the value of UNSPECIFIC if
	there are no expressions.  It had been returning UNSPECIFIC always,
	but the Edwin Debugger needs to be able to find out the value of an
	evaluation after going through the standard evaluation mechanism
	(for the purposes of the
	
	  CONTINUATION-BROWSER-RETURN-FROM,
	  CONTINUATION-BROWSER-RETURN-TO, and
	  CONTINUATION-BROWSER-RETRY
	
	debugger commands).

1991-09-12 17:34  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* sicp/compat.scm (1.6): Fix braino with last change.

1991-09-12 17:11  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* sicp/: studen.scm (1.9), compat.scm (1.5): Make CEILING, FLOOR,
	ROUND, and TRUNCATE coerce their results to exact numbers.

1991-09-12 13:59  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.59): Import DSTATE/EXPRESSION and
	INVALID-EXPRESSION? from (runtime debugger) package to (edwin
	debugger) package.

1991-09-11 01:52  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/ed-ffi.scm (1.15): Fix alphabetical order of initialization
	filenames, because otherwise it doesn't work.

1991-09-10 22:11  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.73): Fix wrong number of arguments bug in
	LIST-MATCHING-LINES command.

1991-09-10 17:33  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsrt.scm (1.4): Removed extraneous debugging code.

1991-09-10 09:53  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.14): Fixed bug in rmail-summary-{exit,quit}
	which appeared when there was only one window open, and it was the
	summary window.

1991-09-09 20:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.64): dump_free_directly now returns the new
	value of free_buffer_bottom.  Improve error messages.

1991-09-09 20:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.40): Allow multiple inclusion. 
	dump_free_directly now returns the new value of free_buffer_bottom.

1991-09-09 19:43  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/tximod.scm (1.14): Fixed: #\C-q is not an ASCII char, but
	#\DC1 is.  MODIFY-SYNTAX-ENTRY! requires an ASCII char.

1991-09-09 18:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.23): Integrate Jmiller's
	latest changes: - Fix typos.  - Describe GENERATE/QUOTATION-HEADER,
	etc. in more detail.  - Describe interrupt hack for printing return
	addresses.

1991-09-09 17:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.10): Fix spelling mistake.

1991-09-09 14:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.9): Add copyright notice and
	title.	Merge in Jmiller's latest comments, and add a picture.

1991-09-09 10:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpaux.txt (1.3): Add copyright notice and
	title.

1991-09-09 10:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpaux.txt (1.2): Fix typos.

1991-09-07 22:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.139): - Remove without-stepping and
	stepping-off! from error.scm, but provide
	hook/invoke-condition-handler so that they can be installed.
	
	- Make gc statistics align properly.

1991-09-07 22:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: error.scm (14.25), runtime.pkg (14.122): Remove
	without-stepping and stepping-off!, but provide
	hook/invoke-condition-handler so that they can be installed.

1991-09-07 22:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gcnote.scm (14.8): Make gc statistics align.

1991-09-07 18:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.98): Add more options for bchscheme.

1991-09-07 18:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchpur.c (9.55), bchgcl.c (9.42), bchmmg.c (9.63):
	Change window size, etc., to be determined from command line
	parameters.

1991-09-07 18:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.56): Change window size, etc., to be
	determined from command line parameters.  Allocate the fixup buffer
	dynamically.

1991-09-07 18:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.39): Add more options for bchscheme. 
	Change window size, etc., to be determined from command line
	parameters.

1991-09-07 18:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/option.h (1.4): Bump copyright date.

1991-09-07 18:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: option.h (1.3), option.c (1.9): Add more options for
	bchscheme.

1991-09-07 01:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: version.scm (14.138), gcnote.scm (14.7), gcstat.scm
	(14.4), runtime.pkg (14.121): Add real time GC statistics gathering
	and reporting.

1991-09-06 21:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchgcc.h (9.38), bchmmg.c (9.62), bchpur.c (9.54): -
	Align GC buffers and Scheme spaces so that raw (character) devices
	can be used for the gc heap.  - Limited recovery and better error
	reporting on system call errors.

1991-09-06 12:19  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.158): Changed filename-complete-string so
	that matches which complete to directory names act as though the
	completion is non-unique.  Before, if the only directory in /tmp
	beginning with "f" was "foo", then completing on "/tmp/f" would
	complete to "/tmp/foo", and the if-unique proc. would be invoked
	with "/tmp/foo/".  Now, we invoke if-non-unique with "/tmp/foo/".

1991-09-05 18:26  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/: ux.h (1.26), pruxfs.c (9.45), utabmd.scm (9.59):
	Added utime() to system calls and SET-FILE-TIMES! to primitives.

1991-09-03 23:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.22): Add a section on
	debugging, a section on the package system (by Arthur), a section
	with suggestions on the order in which to attack the tasks, and
	accommodate some changes for version 4.87.

1991-09-03 18:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.22): CPH: Fix interrupt window in the timer
	interrupt routines that detect control-g under X.

1991-09-03 13:19  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.58): Import WRITE-RESTARTS from the (RUNTIME
	DEBUGGER) package to the (EDWIN DEBUGGER) package.

1991-09-02 17:58  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/dired.scm (1.115): Add copy-multiple-files capability to
	Dired mode:
	
	  C to mark files
	  y to copy marked files

1991-09-02 00:23  sybok

	* runtime/error.scm (14.24): Stepping stuff moved here from
	global.scm

1991-09-02 00:11  sybok

	* runtime/error.scm (14.23): Stepping stuff moved here from
	global.scm

1991-09-02 00:02  sybok

	* runtime/error.scm (14.22): Stepping stuff moved here from
	global.scm

1991-09-01 23:55  sybok

	* runtime/: error.scm (14.21), global.scm (14.32), runtime.pkg
	(14.120): Stepping stuff moved here from global.scm

1991-09-01 23:41  sybok

	* runtime/global.scm (14.31): [no log message]

1991-09-01 23:29  sybok

	* runtime/global.scm (14.30): The addition of "without-stepping" as
	it was changed the operation of scheme so as to prevent my error
	handling code in the stepper from working right.  Thus, I've added
	a procedure, stepping-off!, which one may call in the action thunk
	in order to cause without-stepping to permanently terminate
	stepping.

1991-09-01 23:24  sybok

	* runtime/global.scm (14.29): The addition of "without-stepping" as
	it was changed the operation of scheme so as to prevent my error
	handling code in the stepper from working right.  Thus, I've added
	a procedure, stepping-off!, which one may call in the action thunk
	in order to cause without-stepping to permanently terminate
	stepping.

1991-09-01 10:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.21): Provide a pointer to
	the MIPS pc-relative-address cache.  Add entries for lapopt.scm,
	compiler:intersperse-rtl-in-lap?, and comp.{b,}{con,ldr} files. 
	Minor edits.

1991-08-30 23:59  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/: uxsig.c (1.16), version.h (11.97): Make Scheme only
	able to suspend itself if both stdin and stdout are tty's and the
	"-emacs" option has not been given.

1991-08-29 17:47  sybok

	* runtime/runtime.pkg (14.119): [no log message]

1991-08-29 17:14  sybok

	* runtime/runtime.pkg (14.118): New global variable,
	*pp-avoid-circularity?*, which can be fluid-letted, has been
	created.

1991-08-29 15:01  sybok

	* runtime/pp.scm (14.21): The pretty-print has been changed to
	allow the printing of circular structures in closed form.  Just
	fluid-let the variable *pp-avoid-circularity?* to #t. (The default
	is #f.)

1991-08-29 13:40  sybok

	* runtime/pp.scm (14.20): The pretty-printer can now be made to
	print circular lists without hanging up.  Just fluid-let the
	variable *pp-avoid-circularity?* to #t when needed.  (It defaults
	to false.)

1991-08-29 10:23  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/version.scm (14.137): Incremented version number to
	reflect Arthur's changes to the runtime system.

1991-08-28 21:48  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.57), make.scm (3.57): Many improvements to
	the debugger, including cosmetic changes, separation of reduction
	zero from the subproblem, addition of RETURN-TO command, variables
	to choose window configuration and when to automatically destroy
	the debugger buffer, and more-subproblems notification on the
	modeline instead of in the buffer.
	
	In addition, various bug fixes and more of Brian's RMAIL
	enhancements.

1991-08-28 21:47  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.9): Many improvements to the debugger,
	including cosmetic changes, separation of reduction zero from the
	subproblem, addition of RETURN-TO command, variables to choose
	window configuration and when to automatically destroy the debugger
	buffer, and more-subproblems notification on the modeline instead
	of in the buffer.

1991-08-28 18:38  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/ed-ffi.scm (1.1): Initial revision

1991-08-28 18:30  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/debug.scm (14.30): Make the debugger (and consequently
	the Edwin debugger also) be able to return TO (in addition to
	return FROM, which was on #\Z) the subproblem.

1991-08-28 18:28  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: modlin.scm (1.11), evlcom.scm (1.28): Provide a run light
	for Edwin, which shows "eval" when Edwin is evaluating an
	expression provided by the user.  This is accomplished by setting
	the Edwin variable RUN-LIGHT to "eval" or false.  The default value
	of MODE-LINE-PROCESS will now cause ": eval" to appear after the
	names of the minor modes on the mode line, e.g.:
	
	  (Scheme Narrow)
	
	when no evaluation is running, and
	
	  (Scheme Narrow: eval)
	
	when an evaluation is running.	Because this requires a
	DYNAMIC-WIND at every evaluation, Edwin variable ENABLE-RUN-LIGHT?
	can be used to disable this feature.

1991-08-28 17:06  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: intmod.scm (1.39), evlcom.scm (1.27): Fix various bugs
	with evaluation commands:
	
	Grab the transcript buffer (and whether it's enabled) BEFORE
	beginning an evaluation, because, for example, the output from the
	debugger Z command would go into a completely random place (window
	and buffer).
	
	Make sure that buffers for which the transcript buffer is not
	enabled do not output values to the transcript buffer.

1991-08-28 11:55  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.10): Added mail-header-function variable
	and modified mail-setup.

1991-08-28 10:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: ed-ffi.scm (1.14), edwin.pkg (1.56): Add telnet to the
	list of files.

1991-08-28 10:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/decls.scm (1.24): Add telnet to the list of files to be
	processed.

1991-08-28 10:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/telnet.scm (1.1): Initial revision

1991-08-28 10:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/shell.scm (1.5): Prefix arg to shell command makes it
	create a new buffer and process.

1991-08-28 10:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/comint.scm (1.8): Fix bug in last edit.

1991-08-28 10:35  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.13): Changed functionality of #\space so
	that if the cursor is on a line in the summary window which doesn't
	correspond to the message being shown in the RMAIL window, warp the
	RMAIL window to show the right message.

1991-08-28 10:15  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.10): Added telnet mode.

1991-08-28 09:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/basic.scm (1.115): Separate the character reading part of
	quoted-insert from the command.  In this way, other commands (ie.
	telnet-quoted-send) can use the same reading procedure.

1991-08-28 09:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/comint.scm (1.7): Allow new buffers to be created by
	passing a pair as the name argument to make-comint.

1991-08-28 09:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/char.scm (14.3): Add common alternate names for
	characters, and comments indicating mapping to ascii control codes.

1991-08-28 09:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/global.scm (14.28): Conditionalize to handle the case
	where there are no hooks.

1991-08-28 02:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.95.1.1): Implement change from revision 1.104.

1991-08-28 02:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.103.1.1): Implement change from revision
	1.105.

1991-08-27 22:54  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.59): Correct bug that assumed that regular
	expression registers might contain negative numbers, but never
	false.

1991-08-27 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/parse.scm (14.15): Blew last edit.

1991-08-27 19:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: parse.scm (14.14), unpars.scm (14.23): Add C-style
	character specs inside strings.

1991-08-27 16:14  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.6): Added variable rmail-reply-with-re and
	support in rmail-reply for adding the Re: to subject lines in
	replies.

1991-08-27 16:13  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.55): Added variable rmail-reply-with-re to
	exports.

1991-08-27 15:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.45): Prunning a fossil that had a typo
	and was causing some C compilers to barf.

1991-08-27 04:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.14): Fix wrong-number-of-arguments error
	in call to arg_nonnegative_integer.

1991-08-27 04:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.24), version.scm (14.136): Fix
	history/stack-parser phase errors.  Fix stack-frame->control-point
	bug introduced when previous bug was fixed.  Stacks examined by the
	debugger lost all stacklet framing, making history offsets invalid.

1991-08-27 03:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: utils.c (9.50), version.h (11.96): Re-write
	Restore_History.  The previous version was not keeping the marks
	correctly, and was thus making restored histories appear empty.

1991-08-26 21:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/global.scm (14.27): Fix backwards conditionals in exit
	and %exit.

1991-08-26 21:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/global.scm (14.26): Fix bootstrap unassigned variable
	problem in without-stepping.

1991-08-26 20:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/error.scm (14.20): Make SF not complain about unused
	variables.

1991-08-26 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uerror.scm (14.16.1.1), uerror.scm (14.16.1.2): Add
	arity declarations to obsolete primitives.

1991-08-26 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.25.1.1), runtime.pkg (14.87.1.1):
	Eliminate subprocess support.

1991-08-26 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.24.1.1): Change to match pre-7.2 error
	system.

1991-08-26 18:06  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.12): Fixed bug in output and
	recipients-narrowed summaries.

1991-08-26 17:47  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsrt.scm (1.3): Fixed bug in mail-strip-quoted-headers

1991-08-26 16:29  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/error.scm (14.19): Made sure that condition handlers are
	invoked with stepping turned off. Someday this should be done for
	interrupts too.

1991-08-26 16:28  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/global.scm (14.25): Added WITHOUT-STEPPING to specify
	that a given thunk should not be stepped.

1991-08-26 16:20  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.11): Added rmail-summary-by-recipients

1991-08-26 11:28  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/global.scm (14.24): Make EXIT and %EXIT take an optional
	argument for Scheme to use as UNIX status code.

1991-08-26 11:25  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/version.scm (14.135): Make Scheme explain why it cannot
	open a file.
	
	Make EXIT and %EXIT take an optional argument for Scheme to use as
	UNIX status code.

1991-08-26 11:10  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.10): Fixed bugs in summary-line generation
	and unseen/seen flags.

1991-08-26 11:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.29): Introduced variables have better
	names.

1991-08-26 11:00  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/: debug.c (9.38), extern.h (9.41), osscheme.h (1.4),
	prims.h (9.39), sysprim.c (9.36), term.c (1.5), uxsig.c (1.15),
	version.h (11.95): Add primitive EXIT-WITH-VALUE that takes an
	integer value as argument.
	
	ANSIdecl-ify various primitive procedure utilities in prims.h.

1991-08-26 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.16.1.1): Incorporate changes from revisions
	1.19-21.

1991-08-25 23:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: modefs.scm (1.134), schmod.scm (1.22): Move M-( and M-)
	from Scheme mode to fundamental mode.

1991-08-25 20:20  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.9): Added more functions to summary mode.

1991-08-25 18:02  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.8): Use execute-command instead of
	access...

1991-08-25 17:37  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.7): Added more summary mode commands.

1991-08-25 17:37  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.54): Added more exports for RMAIL and
	RMAIL-Summary modes.

1991-08-23 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.59.1.2): Update for 7.1.3 release.

1991-08-23 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.h (1.25), config.h (9.63), config.h (9.59.1.3),
	ux.h (1.16.1.2): Changes for apollo.

1991-08-23 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.h (9.59.1.2), config.h (9.62): Changes for
	apollo.

1991-08-23 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.14): Fix typo.

1991-08-23 22:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.47.1.1): Implement changes from revision
	9.49.

1991-08-23 21:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.58): Change to match "ux.h".

1991-08-23 21:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/osscheme.h (1.3.1.1): Restore `arg_channel_old' for 7.1
	release.

1991-08-23 21:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.16.1.1): Implement changes from revision 1.24.

1991-08-23 20:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.53.1.1): Implement changes from revision
	9.57.

1991-08-23 20:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/toplev.scm (4.35.1.1), etc/xcbfdir.scm (1.7.1.1):
	Change to match pre-7.2 error system.

1991-08-23 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.59.1.1): Implement change from revision
	9.61.

1991-08-23 19:25  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/: io.scm (14.26), error.scm (14.18), load.scm (14.27),
	pathnm.scm (14.13): Make Scheme explain why it cannot open a file.

1991-08-23 18:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.2.1.1): Implement various changes from
	revision 1.5.

1991-08-23 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gpio.c (1.7.1.1): Eliminate INTERRUPTABLE_EXTENT around
	read and write calls.

1991-08-23 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.c (1.5.1.1): Add BSD emulation of POSIX signal
	operations.

1991-08-23 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.7.1.1): Incorporate changes from revision
	1.14.

1991-08-23 18:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.10.1.1): Incorporate changes from revisions
	1.14-17.

1991-08-23 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.48): Fix typo in BIT-STRING-REF that caused
	incorrect error message.

1991-08-23 14:11  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.6): Fixed a bug in the generation of
	summary line.  Edwin always thought it had to build a new summary
	line.

1991-08-23 12:25  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/load.scm (14.26): Fix bug that caused init file to not be
	loaded if GET-UNUSED-COMMAND-LINE returned no command line options.

1991-08-23 10:49  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* 6001/6001.pkg (1.1): Initial revision

1991-08-23 05:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rules3.scm (1.9): Fix think-o in case for
	MOVE-FRAME-UP.

1991-08-22 22:04  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* 6001/6001.sf (1.3): Use relative pathnames so handling 300's and
	800's is identical.

1991-08-22 21:27  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/load.scm (14.25): Change command line processing to load
	the .scheme.init file (if there is not a -no-init-file option)
	before processing all the other runtime-system-processed command
	line options.  This way, if an -eval or -load option never returns,
	the .scheme.init file will have already been processed.

1991-08-22 20:23  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: modefs.scm (1.133), wincom.scm (1.107), make.scm (3.56):
	Add SCROLL-OTHER-WINDOW-DOWN command and bind
	
	  M-prior to SCROLL-OTHER-WINDOW-DOWN
	  M-next  to SCROLL-OTHER-WINDOW

1991-08-22 16:32  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* 6001/6001.sf (1.2): Add make.scm to the list of files to syntax.

1991-08-22 15:41  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* 6001/make.scm (15.0): Give RCS the correct version number for the
	6.001 (student) system.

1991-08-22 14:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/make.scm (4.20): Change compare-file-modification-times so
	that if foo.bin is linked to foo.scm, it won't be sf'd, etc.

1991-08-22 13:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/butils.scm (4.4): Change compare-file-modification-times so
	that if foo.bin is linked to foo.scm, it won't be sf'd, etc.

1991-08-22 13:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* 6001/6001.cbf (1.2): Activate compiler type and range-checks.

1991-08-22 13:42  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* 6001/: 6001.sf (1.1), arith.scm (1.1), make.scm (1.1), nodefs.scm
	(1.1), pic-imag.scm (1.1), pic-ops.scm (1.1), pic-read.scm (1.1),
	pic-reco.scm (1.1), picture.scm (1.1), 6001.cbf (1.1): Initial
	revision

1991-08-22 11:43  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.117): (Arthur and Jinx:) Add special
	restarts for open-file errors.

1991-08-22 11:17  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/: pathnm.scm (14.12), load.scm (14.24), version.scm
	(14.134): (Arthur and Jinx:) Add special restarts for open-file
	errors.

1991-08-21 21:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/mklogs.scm (1.2): New directory organization.

1991-08-21 21:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.17): (Arthur and Jinx:) Add special
	restarts for open-file errors.

1991-08-21 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.7): Add rewriting rules for sony.

1991-08-21 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/comfiles.scm (1.2): Update for new directory
	structure.

1991-08-21 14:12  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.53): Export sendmail variables
	MAIL-POSITION-ON-FIELD and MAIL-POSITION-ON-CC-FIELD.

1991-08-21 12:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pp.scm (14.19): Make fields of pretty-printer-highlight
	structure mutable.

1991-08-21 12:18  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.52): Export RMAIL-REPLY command.

1991-08-21 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rules3.scm (1.8): Fix bugs in rules for
	generating closures: these rules were assigning to the assembler
	temporary, then executing an instruction that sometimes used the
	temporary.

1991-08-21 00:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/instr1.scm (1.4): Fix several bugs in the
	rules for instructions with immediate operands.

1991-08-20 18:01  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/load.scm (14.23): Add the following command-line options
	to Scheme.  They are processed before the init file (typically
	called ".scheme.init") is loaded:
	
	  Option Keyword	Effect
	  --------------	------
	
	  -eval 		EVALuate the expressions following the
	keyword
				in the USER-INITIAL-ENVIRONMENT, up to (but
				not including) the next option that starts
				with a hyphen.
	
	  -load 		LOAD the files following the keyword, up to
				(but not including) the next option that
				starts with a hyphen.
	
	  -no-init-file 	Do not load the init file.  Name chosen to
	be
				consistent with Emacs.

1991-08-18 19:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hash.scm (14.4): Fix typo.  Use typed errors.

1991-08-18 10:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/rulfix.scm (1.3): Replace 6 with
	scheme-type-width in do-multiply.  Fix a comment.

1991-08-17 12:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pp.scm (14.18): Fix unbound variable problem and make
	tables print a little prettier.

1991-08-16 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/lapgen.scm (1.7): Fix typo in
	`REGISTER->MEMORY-TRANSFER' that caused weird assembler errors when
	the floating-point register set spilled.

1991-08-16 16:29  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/regops.scm (1.84): Make REGION-CLIP! guarantee that the
	point is in the narrowed region.

1991-08-16 14:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pp.scm (14.17): Fix counting bug in maybe-print-table.

1991-08-16 14:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.116): Rename (and invert)
	*pp-really-pretty?* to *pp-save-vertical-space?*

1991-08-16 14:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pp.scm (14.16): Fix bug in maybe-print-table.  It was
	ignoring depth and trying to tabulate less than 4 elements.  Rename
	(and invert) *pp-really-pretty?* to *pp-save-vertical-space?*

1991-08-16 11:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.133): New (runtime hash) module supports
	multiple hash tables.

1991-08-16 11:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.115): Export hash-table/make and
	object-hashed? from (runtime hash).

1991-08-16 11:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/hash.scm (14.3): Multiple hash tables supported.

1991-08-15 22:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pp.scm (14.15): Fix typo.

1991-08-15 21:31  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: bufout.scm (1.6), edwin.pkg (1.51): Add
	DEFAULT-WINDOW-WIDTH, the value returned by the X-SIZE operation on
	buffer output ports when the buffer does not appear in any window.

1991-08-15 21:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: pp.scm (14.14), version.scm (14.132): Update pretty
	printer to include highlight objects, tabulation of data lists,
	better user control by means of exported variables, and more
	consistent modes (data versus code).

1991-08-15 21:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.114): Updated pretty printer exports
	control variables.

1991-08-15 18:15  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* microcode/config.h (9.61): Sony NEWS OS has frexp, floor, modf.

1991-08-15 15:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.6): Fix rewriting paths to accomodate
	new directory structure.

1991-08-15 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.8): Change to match new directory
	configuration.

1991-08-14 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/machin.scm (1.4): Add fixnum
	bitwise-logical operations to list of primitives that cannot be
	open-coded on the MIPS.

1991-08-13 22:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/make.scm (4.19), sf/gconst.scm (4.12), runtime/version.scm
	(14.131): Add FLOATING-VECTOR-xxx primitives.

1991-08-13 22:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dfloat.c (1.2): Add FLOATING-VECTOR-LENGTH.

1991-08-13 21:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.20): - Incorporate some
	reader comments.
	
	- Mention new MIPS OVERFLOW-TEST solution.

1991-08-13 16:59  newts

	* edwin/macros.scm (1.53): Change command, variable, and mode
	definition macros to make them expand into simple Scheme
	definitions.

1991-08-13 14:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/hppa.h (1.24), cmpauxmd/hppa.m4 (1.18):
	Change hppa_utility_table to be allocated dynamically rather than
	statically.

1991-08-13 02:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.94), cmpint.c (1.38), cmpintmd/hppa.h
	(1.23), cmpauxmd/hppa.m4 (1.17): Work around HP-UX 8.0's format for
	C procedure pointers (closures).

1991-08-13 02:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/breakup.c (9.23): Fix typo.

1991-08-13 01:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxenv.c (1.3): Make ANSI declaration use GNU EXFUN
	macro to allow non-ANSI compilers to handle it.

1991-08-12 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.55): [no log message]

1991-08-12 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: rmailsum.scm (1.5), rmailsrt.scm (1.2): Eliminate unused
	and unbound variables.	Repaginate.

1991-08-12 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.50): Fix typo.

1991-08-12 18:15  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/: pruxenv.c (1.2), ux.h (1.24): Added primitives
	HOSTNAME and FULL-HOSTNAME to get the short host name and the full
	host name with domain.

1991-08-12 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rulfix.scm (1.2): Rewrite fixnum overflow
	tests to produce significantly better code.  Now fixnum operations
	with overflow do SET-CURRENT-BRANCHES! themselves, and
	OVERFLOW-TEST does nothing.

1991-08-12 18:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/lapgen.scm (1.6): Fix various bugs in
	generation of LAP for addition and loading of constants.

1991-08-12 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: dassm2.scm (1.3), dassm3.scm (1.3):
	Change disassembly of EXTERNAL-LABEL to use (@PCR label) where
	possible.

1991-08-12 09:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/sdata.scm (14.2): Fix definitions of &triple-set-second!
	and &triple-set-third! .  They were clobbering the wrong cxr!

1991-08-11 23:14  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/dired.scm (1.114): Dired was unable to delete files
	appearing on the first line of its buffer.

1991-08-11 11:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: cpoint.scm (14.4), conpar.scm (14.23), version.scm
	(14.130): Fix two history-related bugs:
	
	- previous-history-offsets were being incorrectly computed in
	make-intermediate-state.
	
	- make-control-point was adding a new (join-stacklets) frame even
	when there was one, therefore invalidating all
	previous-history-offsets contained in the stream.  This latter bug
	was "fixed" by changing control-point/element-stream to not include
	the last (join-stacklets) frame.

1991-08-09 14:42  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.49): Export Edwin variables to the (edwin)
	package:
	
	  X-SCREEN-NAME-FORMAT
	  X-SCREEN-ICON-NAME-FORMAT
	  X-SCREEN-ICON-NAME-LENGTH

1991-08-08 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: histry.scm (14.5), version.scm (14.129): Make dummy
	reduction be recognizable as such, rather than spuriously show up.

1991-08-08 14:57  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: wincom.scm (1.106), modefs.scm (1.132): Make most HP
	keyboard functions do something reasonable (i.e. related to their
	names).

1991-08-07 15:09  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/dired.scm (1.113): Fix FILL-DIRED-BUFFER! bug that caused
	"~" command (and probably others) to fail.

1991-08-06 18:58  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.4): Updates for autoloading.

1991-08-06 18:55  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/ed-ffi.scm (1.13): Added RMAIL Summary mode and RMAIL sort
	mode.

1991-08-06 18:54  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.18): Added RMAIL sort mode.

1991-08-06 18:52  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.48): Added RMAIL Summary mode and RMAIL sort
	mode.

1991-08-06 18:45  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.131): Fix joke brainos.

1991-08-06 18:41  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/decls.scm (1.23): Added RMAIL Summary mode and RMAIL sort
	mode.

1991-08-06 18:39  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.9): Added autoloads for RMAIL Summary mode.

1991-08-06 18:18  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.3): It works! (well, at least the basic
	stuff)

1991-08-06 18:15  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/: uxtrap.c (1.15), version.h (11.93): Hardware traps
	now preserve the history when the trap is known to have occured in
	compiled code, since the history is perfectly well defined.

1991-08-06 18:14  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/version.scm (14.128): Debugger improvements to show
	history for compiled code frames that have it.

1991-08-06 18:13  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.22): The last compiled-return-address
	frame before an interpreter frame has valid history.

1991-08-06 18:12  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/histry.scm (14.4): Use with-history-disabled in
	with-new-history so that new evaluations are guaranteed to have at
	least one interpreter return frame, thus making the continuation
	parser work better in the presence of compiled code.
	
	with-new-history no longer tail-recurses into the thunk.

1991-08-06 18:10  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/debug.scm (14.29): Debugger now treats
	compiled-return-address frames with history specially: The stack
	information for each is printed as if it had its own reduction
	since the first reduction corresponds to the interpreted expression
	that tail-recursed into the compiled code.

1991-08-06 18:04  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: modefs.scm (1.130), motcom.scm (1.43): Jokes.

1991-08-06 16:56  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/rmailsum.scm (1.2): [no log message]

1991-08-06 14:12  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/make.scm (3.54): Add support for special keys, including
	function keys and arrow keys, with bucky bits.
	
	A key is either a CHAR or a SPECIAL-KEY.  SPECIAL-KEYs can be
	compared using EQ?.
	
	Support all the keys named in /usr/include/X11/keysym.h, using the
	names X gives them (with few exceptions).
	
	Rename most procedures for dealing with keys from "-char" to "-key"
	to prevent confusion.
	
	Requires microcode 11.91 or later because of changes to the X
	keyboard event structure.

1991-08-06 11:54  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: replaz.scm (1.72), iserch.scm (1.15), prompt.scm (1.148),
	calias.scm (1.11): Fix unbound variable error from special key
	changes.

1991-08-06 11:40  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: replaz.scm (1.71), kmacro.scm (1.34), edwin.pkg (1.47),
	edwin.ldr (1.17): Add support for special keys, including function
	keys and arrow keys, with bucky bits.
	
	A key is either a CHAR or a SPECIAL-KEY.  SPECIAL-KEYs can be
	compared using EQ?.
	
	Support all the keys named in /usr/include/X11/keysym.h, using the
	names X gives them (with few exceptions).
	
	Rename most procedures for dealing with keys from "-char" to "-key"
	to prevent confusion.
	
	Requires microcode 11.91 or later because of changes to the X
	keyboard event structure.

1991-08-06 11:37  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: motcom.scm (1.42), modefs.scm (1.129), dired.scm (1.112),
	decls.scm (1.22), basic.scm (1.114), input.scm (1.90), prompt.scm
	(1.147), info.scm (1.105), calias.scm (1.10), hlpcom.scm (1.100),
	iserch.scm (1.14), xterm.scm (1.21), keymap.scm (1.10), comtab.scm
	(1.60), wincom.scm (1.105), regcom.scm (1.20), sercom.scm (1.60),
	lspcom.scm (1.154), c-mode.scm (1.47), argred.scm (1.31),
	comred.scm (1.87), ed-ffi.scm (1.12): Add support for special keys,
	including function keys and arrow keys, with bucky bits.
	
	A key is either a CHAR or a SPECIAL-KEY.  SPECIAL-KEYs can be
	compared using EQ?.
	
	Support all the keys named in /usr/include/X11/keysym.h, using the
	names X gives them (with few exceptions).
	
	Rename most procedures for dealing with keys from "-char" to "-key"
	to prevent confusion.
	
	Requires microcode 11.91 or later because of changes to the X
	keyboard event structure.

1991-08-06 11:13  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/purutl.c (9.42): Fix purification bug on Snakes;
	floating-point alignment was confusing the purifier.

1991-08-06 11:11  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/: x11base.c (1.25), version.h (11.92): Upgrade
	microcode to pass X keysyms in keyboard events through to Edwin.

1991-08-06 09:56  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* runtime/version.scm (14.127): Fixed bug in sdata.scm...thanks
	sybok

1991-08-05 12:39  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/: rmailsum.scm (1.1), rmailsrt.scm (1.1): Initial revision

1991-08-05 10:21  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/config.h (9.60): Compiling with the stepper hooks.

1991-08-01 18:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/editor.scm (1.206): Make edit and edwin take arguments and
	pass them along to create-editor.

1991-08-01 13:51  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/make.scm (3.53): [no log message]

1991-08-01 13:51  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.46): Export edwin-variable$mail-setup-hook

1991-07-31 14:24  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/lspcom.scm (1.153): Add INSERT-PARENTHESES and
	MOVE-PAST-CLOSE-AND-REINDENT and bind them to keys.

1991-07-31 14:09  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.21): Add INSERT-PARENTHESES and
	MOVE-PAST-CLOSE-AND-REINDENT and bind them to keys.

1991-07-31 10:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.5): Fix UX_times problem in
	OS_real_time_clock.

1991-07-30 18:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.2.1.1): Fix ultrix problem in release 7.1. 
	times can legally return negative numbers other than -1.

1991-07-26 17:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.20): Enable super, hyper, and top modifier
	keys under X.

1991-07-26 17:52  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/x11base.c (1.24): Enable super, hyper, and top modifier
	keys under X.

1991-07-26 16:57  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.19): Added variable x-display-name, which
	defaults to false.  fluid-let'ing x-display-name to a string (like
	"freeside:0") before invoking edwin allows edwin to pop up an X
	window on non-local displays.

1991-07-25 05:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/machin.scm (4.23): (Jinx) implemented
	open-coding for INTEGER-MULTIPLY, INTEGER-DIVIDE, and
	INTEGER-REMAINDER.

1991-07-25 04:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rules3.scm (1.7): Eliminate two uses of
	@PCO branches.	Repaginate.

1991-07-25 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68020 (4.87): Install
	machine-dependent file and procedure to perform optimization of LAP
	between linearization and assembly.  This is for instruction
	scheduling and peephole optimization.

1991-07-24 22:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: instr1.scm (1.3), instr2a.scm (1.4),
	instr2b.scm (1.3), instr3.scm (1.2), lapgen.scm (1.5), rules1.scm
	(1.4), rules3.scm (1.6), rulflo.scm (1.5): Change LAP generator to
	use new PC-relative address cacheing mechanism.  Also eliminate
	generation of PC-RELATIVE-OFFSET pseudo instruction, and of certain
	instructions that would make analysis of the LAP difficult.  Change
	LAP to conform more closely to the MIPS spec, e.g. change "FADD
	DOUBLE" to "ADD.D".  Implement simple LAP optimizer that eliminates
	some NOPs appearing in load delay slots.

1991-07-24 22:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: vax/lapopt.scm (1.1), spectrum/lapopt.scm
	(1.1), mips/lapopt.scm (1.1): Initial revision

1991-07-24 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/make.scm (4.87), vax/compiler.pkg
	(1.7), vax/decls.scm (4.6), mips/compiler.pkg (1.4), mips/decls.scm
	(1.3), mips/make.scm-big (4.87), mips/make.scm-little (4.87):
	Install machine-dependent file and procedure to perform
	optimization of LAP between linearization and assembly.  This is
	for instruction scheduling and peephole optimization.

1991-07-24 22:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapopt.scm (1.1): Initial revision

1991-07-24 22:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/toplev.scm (4.35), machines/bobcat/compiler.pkg
	(1.33), machines/bobcat/decls.scm (4.28),
	machines/bobcat/make.scm-68040 (4.87),
	machines/spectrum/compiler.pkg (1.32), machines/spectrum/decls.scm
	(4.28): Install machine-dependent file and procedure to perform
	optimization of LAP between linearization and assembly.  This is
	for instruction scheduling and peephole optimization.

1991-07-24 22:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/: regmap.scm (4.11), mermap.scm (1.4): Implement
	support to permit cacheing of PC-relative addresses in registers. 
	This is important on RISC machines where it is often expensive to
	compute a PC-relative address.

1991-07-24 21:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.113): Addition of operations and
	procedures to manipulate image and colormap datatypes.	Requires
	microcode version 11.89 or later.

1991-07-24 15:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.91), uxsig.c (1.13), uxtrap.c (1.14),
	uxtrap.h (1.11), uxutil.c (1.3): Changes to make sure that Scheme
	does not get into an infinite loop on input when a trap occurs or
	its tty disappears.

1991-07-24 15:42  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/: x11graph.c (1.16), version.h (11.90): Add support for
	setting the resource class and name of X windows.

1991-07-23 22:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/const.h (9.39): Fix typo in previous change.

1991-07-23 21:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.4): Work around bug in Ultrix: the `times'
	system call sometimes returns negative numbers (other than -1) when
	there are no errors.  The STD_VOID_SYSTEM_CALL macro checks for
	result <0, so perform explicit check for result =-1.

1991-07-23 04:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.126): [no log message]

1991-07-23 04:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.4): Add a 1D property table to each
	graphics device.

1991-07-23 04:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.10): Addition of operations and
	procedures to manipulate image and colormap datatypes.	Requires
	microcode version 11.89 or later.

1991-07-23 04:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11.h (1.10), x11base.c (1.23), x11graph.c (1.15),
	x11color.c (1.3), version.h (11.89): Editing of X11 image, visual,
	and colormap support to regularize interface, provide better type
	and error checking, and simplify handling of colormaps by
	associating a display object with them.
	
	Requires runtime 14.126 or later.

1991-07-21 03:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/instr2b.scm (1.2): Fix typo in load/store
	instruction rules.

1991-07-21 03:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.24): ENVIRONMENT-HAS-PARENT? must return
	one of three values: #F, #T, or 'SIMULATED.  In the case of
	compiled closures, it was returning something else, causing the
	debugging tools to think that these procedures had no closing
	frame.

1991-07-19 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxdir.scm (14.7): Fix typo in last change.

1991-07-19 00:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.45): Eliminate now-unused variable.

1991-07-19 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.8): Eliminate spurious compiler warning. 
	Sharpen up documentation strings of variables.	Fix pagination.

1991-07-18 23:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: reduct.scm (4.2), make.scm (4.18): Fix bugs in reduction
	declarations.

1991-07-18 20:38  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.7), evlcom.scm (1.26), make.scm (3.52),
	edwin.pkg (1.44): New Edwin debugger (commissioned for 6.001)

1991-07-18 19:37  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/error.scm (14.16): Fix the pluralization of "argument" in
	the WRONG-NUMBER-OF-ARGUMENTS error.

1991-07-18 12:01  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/: step.c (9.29), const.h (9.38): Changed support for
	stepper hooks. Return hooks now work more or less like the apply
	and eval hooks.

1991-07-18 11:58  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/: interp.c (9.63), interp.h (9.34): Changed support for
	stepper hooks. Return hooks now work more or less like the apply
	and eval hooks.

1991-07-17 04:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxdir.scm (14.5), unxdir.scm (14.6): Fix bug in
	DIRECTORY-READ: if the argument has any name component, don't
	default other name components to 'WILD.

1991-07-16 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/paths.scm (1.10): Guarantee error if unable to find one of
	Edwin's system directories.

1991-07-16 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rulflo.scm (1.4): Eliminate redundant
	instructions in flonum-cons rule.

1991-07-15 20:08  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/version.scm (14.125): Hooks for running before restarts
	and debugger returns.
	
	Debugger formatting improvements.

1991-07-15 20:03  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/debug.scm (14.28): Add a hook to run before doing a
	return command from the debugger.  Separate the printing of the
	components of subproblems and reductions so they can be printed
	separately.

1991-07-15 19:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/error.scm (14.15): Add a hook in
	INVOKE-RESTART-INTERACTIVELY between any interactive prompting and
	the invocation of the restart effector.

1991-07-15 19:40  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.13): Trivial formatting change.

1991-07-15 19:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.10): Fix error message generated when
	object passed to a record accessor or updater is a record of the
	wrong type.

1991-07-12 21:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/flonum.c (9.35): Catch error returns in calls to
	transcendental functions.

1991-07-12 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.124): [no log message]

1991-07-12 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.88): Various fixes to floating-point trap
	code.

1991-07-12 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.10): Add code to handle siginfo structure
	that is zero.

1991-07-12 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.13): Forgot to step loop counter in last
	change to find_signal_code_name.  Also add code to handle siginfo
	structure that is zero.

1991-07-12 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/mips.m4 (1.4), cmpintmd/mips.h (1.9),
	cmpint.c (1.37): Add initialization code to enable the IEEE traps.

1991-07-12 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rulflo.scm (1.3): Change rule for
	predicates that compare against implicit zero.	Previously, these
	predicates were generating a zero by subtracting a register from
	itself.  This doesn't work if the register contains an infinity or
	a NAN -- in that case it traps.  The new code generates a zero by
	explicitly zeroing the register.

1991-07-12 13:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: savres.scm (14.20), savres.scm (14.21): Change
	DISK-RESTORE to try explicit filename first before tacking on
	".com".

1991-07-10 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/hppa.m4 (1.16), cmpintmd/hppa.h (1.22): Add
	initialization code that enables most of the IEEE floating-point
	exceptions.

1991-07-10 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.87): [no log message]

1991-07-10 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11color.c (1.2): Rewrite X-STORE-COLORS.  Previously
	it had unpredictable effect since the `flags' component of the
	XColor structures was not being initialized.

1991-07-10 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxtrap.h (1.9), uxtrap.c (1.12): Change
	find_signal_code_name to be more customizable.	Implement
	customization that determines correct names for floating-point
	exceptions on the HP Precision Architecture.

1991-07-10 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dfloat.c (1.1), x11color.c (1.1): Initial revision

1991-07-10 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.8): Fix typo in HP 9000 series 800 trap
	codes.

1991-07-10 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.21): Handle (/ 0 X) specially to guarantee
	that result is exact zero even when X is inexact.

1991-07-09 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.94): Fix bug in which CLEAR-RECTANGLE would
	erase the highlighting on mode lines that were not full-screen
	width.

1991-07-09 18:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comwin.scm (1.142): Fix SIGSEGV that occurred when deleting
	the selected window in complicated combinations of windows.

1991-07-08 20:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: output.scm (14.10), runtime.pkg (14.112): Add
	FRESH-LINE procedure.

1991-07-08 20:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.51): [no log message]

1991-07-08 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.43): Import hook/repl-eval from the runtime
	system.

1991-07-08 18:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwfs.scm (1.15): Fix bug that caused SIGSEGV or SIGBUS to
	happen when the line at the bottom of the window had a continuation
	line that extended past the bottom.

1991-07-08 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.14): Fix typo in documentation string.

1991-07-06 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/wind.c (1.4): In `dstack_set_position', must unblock
	signals while the protector runs, and re-block afterwards, in case
	the protector does something to change the signal mask.  Otherwise,
	the change to the signal mask will be undone when the final call to
	unblock_signals is performed.

1991-07-05 19:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.86): Changes to fix `dstack_set_position'
	bug.

1991-07-05 19:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.12): Change to use new
	`dstack_alloc_and_protect' procedure.

1991-07-05 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: intext.h (1.2), intext.c (1.3): Eliminate use of
	CATCH and THROW macros.  Use position in `struct
	interruptable_extent' to set the dstack after a throw.	Guarantee
	that signal mask is restored last when interrupting.

1991-07-05 19:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: dstack.h (1.2), wind.c (1.3): Implement new procedure
	`dstack_alloc_and_protect' that combines `dstack_alloc' and
	`dstack_protect', saving space and improving atomicity.  Eliminate
	CATCH and THROW macros.

1991-07-05 19:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.25): Change evaluation commands to correctly
	bind current and repl output ports to capture all output.  Do this
	regardless of the value of `enable-transcript-buffer'.	Also change
	the evaluation commands to use `hook/repl-eval' just like repls and
	`load'.

1991-07-03 12:55  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.13): The cpp on altdorf seems to have
	problems with multiline string constants as macro arguments.

1991-07-03 12:15  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.12): Added X-BYTES-INTO-IMAGE which takes
	a vector-8b and an image and sticks the bytes from the vector into
	the image.

1991-07-02 23:08  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/uxsock.c (1.5): Handle interrupted UX_accept system
	call by retrying rather than passing the error along to Scheme.

1991-07-02 21:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: psbmap.h (9.33), psbtobin.c (9.44): Psbtobin was
	underestimating the amount of space needed on machines that have
	floating-point alignment constraints.  Now it will overestimate,
	but this is not harmful.

1991-07-02 15:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.111): Change hardware traps to be errors.
	 Eliminate MICROCODE-ASYNCHRONOUS condition class.

1991-07-02 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modwin.scm (1.38): Fix bug that left-justified the modeline
	for a non-left-justified window.

1991-07-02 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.17): Don't treat EACCES specially when
	opening pty -- this can happen and in that case the pty should be
	ignored.

1991-07-02 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (11.85), x11.h (1.9), x11base.c (1.22),
	x11graph.c (1.11): Add JMiller's new X graphics primitives.

1991-07-02 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsig.c (1.11), wind.c (1.2): Block all signals while
	performing dstack allocation and deallocation.

1991-06-26 14:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.12): Use upper case to highlight procedure
	and special form names in environment summary.

1991-06-24 19:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.110): Export intern-soft.

1991-06-24 19:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/scode.scm (14.12): Define find-symbol and intern-soft.

1991-06-24 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.27): Change hardware traps to be errors. 
	Eliminate MICROCODE-ASYNCHRONOUS condition class.

1991-06-24 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.7): Change tags table to include entries
	from all machine-specific directories.

1991-06-22 15:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: interp.c (9.62), intext.c (1.2), uxsig.c (1.10),
	version.h (11.84): Change `abort_to_interpreter' and
	`exit_interruptable_extent' to restore the signal mask.  This
	should have been done using `sigsetjmp' and `siglongjmp', but a bug
	in Sony NEWS OS generates a segmentation violation when those
	functions are used this way.  The chosen solution works, and is
	slightly more portable.

1991-06-22 15:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxselect.h (1.1): Initial revision

1991-06-20 23:40  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.10): Implement primitives to map event
	coordinates to graphics window coordinates.

1991-06-20 21:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gcloop.c (9.37): Change GC traps to do >= comparisons
	rather than ==.

1991-06-20 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: compiler.sf-little (1.2),
	compiler.sf-big (1.2), make.scm-little (4.86), make.scm-big (4.86):
	Changes to configure for either little- or big-endian machines.

1991-06-20 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gcloop.c (9.36): Changes for sony mips.

1991-06-18 17:10  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/make.scm (3.50): Make Edwin buffer and window output ports
	correctly support the operation X-SIZE.
	
	X-SIZE on a buffer output port now returns the character width of
	the most narrow window showing the port's buffer, or 79 if no
	window shows the buffer.
	
	X-SIZE on a window output port now returns the character width of
	the window.

1991-06-18 16:30  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* edwin/: winout.scm (1.6), bufout.scm (1.5): Make Edwin buffer and
	window output ports correctly support the operation X-SIZE.
	
	X-SIZE on a buffer output port now returns the character width of
	the most narrow window showing the port's buffer, or 79 if no
	window shows the buffer.
	
	X-SIZE on a window output port now returns the character width of
	the window.

1991-06-17 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.11): Fix incorrect uses of
	`define-export'.

1991-06-17 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: assmd.scm (1.2), compiler.pkg (1.3),
	dassm2.scm (1.2), dassm3.scm (1.2), insmac.scm (1.2), instr1.scm
	(1.2), instr2a.scm (1.3), lapgen.scm (1.4), machin.scm (1.3),
	make.scm-big (4.85), make.scm-little (4.85), rules1.scm (1.3),
	rules3.scm (1.5): Changes to get compiler running on big-endian
	MIPS.

1991-06-14 23:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.16): Changes for sony news laptop running
	news os 5.01.

1991-06-14 20:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpintmd/mips.h (1.8), gccode.h (9.43), oscond.h
	(1.5), ux.h (1.23), uxctty.c (1.8), uxfile.c (1.6), uxproc.c
	(1.11), uxsig.c (1.9), uxsock.c (1.4), uxterm.c (1.15), uxtrap.c
	(1.11), uxtrap.h (1.7): Changes for sony news laptop running news
	os 5.01.

1991-06-14 20:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.22): Fix typo in previous change.

1991-06-14 19:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.109): Export
	`debugging-info/unknown-expression?' for use by debugger.

1991-06-14 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.83): Changes for sony news laptop running
	news os 5.01.

1991-06-14 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fggen/fggen.scm (4.28), rtlgen/opncod.scm (4.44):
	Change the front end of the compiler to expand calls to
	general-car-cdr if their second argument is a positive exact
	integer.  Remove the open-coding rule for general-car-cdr.  The
	reason for this change is that the open-coding of general-car-cdr
	does not work correctly when type checking is turned on.

1991-06-13 23:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/framex.scm (14.15): Fix bug in
	method/combination-save-value.	The wrong (or non-existent)
	subexpression of a combination was being extracted as the relevant
	subproblem.

1991-06-13 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.43): For SYSTEM-VECTOR-SIZE, cannot
	assume that the type code of the length field is zero, as we can
	for VECTOR-LENGTH.

1991-06-12 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: make.scm-68040 (4.86), make.scm-68020
	(4.86): Fix various bugs in generation of type and range checks.

1991-06-12 16:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.42): Fix various bugs in generation
	of type and range checks.

1991-06-11 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.41): Eliminate a situation where
	useless continuation entries were being generated.  The generation
	of these entries causes errors later on in the compilation.  This
	bug only occurs when type checking is turned on.

1991-06-11 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.27): Fix a couple of logic errors in
	PRINT-SUBEXPRESSION.

1991-06-10 18:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.21): Fix bug in unparse-tail by which (1
	quote 2) was printing incorrectly.

1991-06-10 18:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/uproc.scm (1.2): Fix typo: set-entity-extra! was setting
	the wrong field.

1991-06-06 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/triv.con (1.3): Make changes to correspond to recent changes
	to "cref.pkg".

1991-05-30 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: make.scm-big (4.84), make.scm-little
	(4.84): Update to match current 680x0 sources.

1991-05-28 15:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: lapgen.scm (4.42), machin.scm (4.25),
	make.scm-68040 (4.85), rules1.scm (4.35), rules3.scm (4.31): Change
	the value register to d6.  Add compiler hooks for the 68k family. 
	Fix a bug in the 68040 closure code.  Fix a couple of broken rules
	that manifested themselves with the value register change.

1991-05-28 15:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68020 (4.85): Change the value
	register to d6 on the 68k family.  Add more compiler hooks for the
	68k family.

1991-05-28 15:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.20): Change the value register to
	d6 on the 68k family.  Add more compiler hooks for the 68k family.

1991-05-28 15:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.82), cmpintmd/mc68k.h (1.27): Change
	the value register to d6 on the 68k family.  Add more compiler
	hooks for the 68k family.

1991-05-27 13:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/xcbfdir.scm (1.7): Give touch-created-file? an
	initial value so that if file-touch fails, there will not be a
	secondary error in the unwind code.

1991-05-21 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.49): Modify completion code to work reasonably
	both in normal and typein windows.

1991-05-21 17:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.157): Fix filename/pathname confusion bug in
	LOAD-FIND-FILE-INITIALIZATION.

1991-05-20 22:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comint.scm (1.6), schmod.scm (1.20): Change completion
	code to use new generic support.

1991-05-20 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.146), edwin.pkg (1.42): Implement generic
	support for completions.

1991-05-20 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.19): [no log message]

1991-05-20 18:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.18): [no log message]

1991-05-20 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.48): [no log message]

1991-05-20 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.17): Add new command M-x
	scheme-complete-symbol.

1991-05-20 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.5): Change COMINT-LIST-FILENAME-COMPLETIONS
	-- discard the pop-up buffer iff the user types a space.

1991-05-20 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/syntax.scm (1.73): Add new procedure: forward-prefix-chars.

1991-05-20 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syntax.c (1.21), version.h (11.81): Add new primitive
	SCAN-FORWARD-PREFIX-CHARS.

1991-05-20 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.42): Fix bug in FIND-TAG-DEFAULT.  This
	change requires new primitive SCAN-FORWARD-PREFIX-CHARS, first
	installed in microcode 11.81.

1991-05-20 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.41): Export command definitions for tags
	package.

1991-05-17 23:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: modwin.scm (1.37), wincom.scm (1.104), editor.scm
	(1.205), bufwin.scm (1.295): Eliminate last vestiges of "*"
	convention in variable documentation.

1991-05-17 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.103): Change M-x scroll-other-window and M-x
	scroll-other-window-several-screens to scroll the window containing
	a pop-up buffer if one is popped up during minibuffer editing.

1991-05-17 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.145): Change handling of default type
	INSERTED-DEFAULT -- now inserts the default string only if it is
	not #f.  Change PROMPT-FOR-STRING/PROMPT to add ": " to prompt only
	if it doesn't end in " ".  Change PROMPT-FOR-NUMBER to display the
	default without quote marks.  Change PROMPT-FOR-CONFIRMATION? and
	PROMPT-FOR-YES-OR-NO? to behave like Emacs when the user supplies
	an incorrect answer.

1991-05-17 23:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.24): Change Scheme expression prompting to
	display the default value with appropriate quoting.

1991-05-17 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.40): Export all command and mode definitions
	from the prompt package.

1991-05-17 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.111): Improve write-strings-densely. 
	Eliminate several unused procedures.

1991-05-17 19:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/strpad.scm (1.5): Improve write-strings-densely.  Eliminate
	several unused procedures.

1991-05-17 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/syntax.scm (1.72): Fix fencepost error.

1991-05-17 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.204): Due to change in push-cmdl, it's now
	necessary to bind edwin's internal error handler after creating the
	new cmdl.

1991-05-17 15:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.47): [no log message]

1991-05-17 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwmc.scm (1.14): Add check to WINDOW-MARK-VISIBLE? to
	handle marks that fall outside the display clipping limits.

1991-05-17 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modlin.scm (1.10): Change modeline to use display limits
	when computing the "percentage" field.	Previously it used text
	limits, which caused errors when the text limits were wider than
	the display limits.

1991-05-17 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/linden.scm (1.121): Add syntax-table argument to
	`char->syntax-code' and related procedures.  Move definition of
	`standard-syntax-table' from regexp package to edwin top-level
	package.  Eliminate special initialization of editor variable
	`syntax-table'.

1991-05-17 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.203), linden.scm (1.120), prompt.scm
	(1.144), regexp.scm (1.58), sercom.scm (1.59), syntax.scm (1.71):
	Add syntax-table argument to `char->syntax-code' and related
	procedures.  Move definition of `standard-syntax-table' from regexp
	package to edwin top-level package.  Eliminate special
	initialization of editor variable `syntax-table'.

1991-05-17 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/iserch.scm (1.13): Fix handling of nonincremental search
	option.  Implement word search option.

1991-05-17 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sercom.scm (1.58): Define word-search commands.  Fix
	various typos and bugs in other search commands.

1991-05-17 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: prompt.scm (1.143), edwin.pkg (1.39): Create new entry
	point, prompt-for-string/prompt, that does standard processing of
	string prompt, including insertion of default and addition of
	trailing ": ".

1991-05-16 20:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.142): Change prompt-for-string (and all
	associated prompt procedures) to accept a prompt "string" that is a
	one-element list of strings.  In this case, the string that is the
	list's element is used verbatim as the prompt string, without the
	normal processing that appends a default and ": ".

1991-05-16 20:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.113): Change M-x execute-extended-command to
	use name of command character as prompt.  Take advantage of new
	feature in prompt-for-string to eliminate automatic suffix of ": "
	on the prompt string.

1991-05-16 20:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/calias.scm (1.9): Change representation of character names
	to use "M-" instead of "ESC " as prefix for meta characters.  Also
	change "ESC C-" to "C-M-".

1991-05-16 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.104): Fix a few minor bugs.

1991-05-16 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.101): When reading a file into a buffer,
	guarantee that the modified flag for that buffer is set, so that
	the modification code doesn't check to see if the buffer's contents
	is consistent with the file it came from.

1991-05-16 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: utils.scm (1.25), prompt.scm (1.141): Eliminate incorrect
	case sensitivity in completion.

1991-05-16 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.46): [no log message]

1991-05-16 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: grpops.scm (1.14), basic.scm (1.112): Add detection and
	handling of file supercession threats.

1991-05-16 13:47  Hal Abelson <hal@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.5): Fix think-o in M-x rmail-reply.

1991-05-15 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.123): Various improvements to the
	debugger.

1991-05-15 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgcmd.scm (14.12): Bind a condition handler to catch and
	ignore errors that occur while executing debugger commands.

1991-05-15 18:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.108), rep.scm (14.21): When starting a
	new CMDL, bind the list of condition handlers to '() so that the
	handlers for the parent CMDL do not catch errors meant for this
	CMDL.

1991-05-15 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.6), edwin.pkg (1.38): Implement variable
	continuation-browser-output-style to control how the debugger
	displays its output.  Bind k to the command that selects and
	invokes a restart.

1991-05-15 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufout.scm (1.4): Add CLOSE operation that deallocates the
	port's output mark.

1991-05-15 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.20), debug.scm (14.26), runtime.pkg
	(14.107): Implement control variable
	REPL:ALLOW-RESTART-NOTIFICATIONS?.  Change debugger to present
	restart notifications with same numbering as does the REP loop.

1991-05-15 15:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.20): Fix typo in last change.

1991-05-15 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.122): [no log message]

1991-05-15 15:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.45): [no log message]

1991-05-15 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.4): Improve M-x undigestify-rmail-message so
	it doesn't recount all messages in rmail file -- it just counts the
	messages that it generated.

1991-05-15 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.156): Change filename prompting to convert
	completion result to use "~" notation where appropriate.

1991-05-15 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.17): Implement new procedure
	os/filename->display-string.  Change definition of
	os/filename-directory, to return false when there's no directory
	component.

1991-05-15 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (14.19), debug.scm (14.25), runtime.pkg
	(14.106): Add control variable to allow limiting the amount of a
	string that is printed when slashification is turned on.  Use this
	variable in the debugger.

1991-05-15 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.3): Add new commands:	rmail-output   
	rmail-output-to-rmail-file	undigestify-rmail-message

1991-05-15 13:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.155), fileio.scm (1.100): Eliminate
	duplicated "Saving file..." message.

1991-05-15 12:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.15): Change generic_flonum_result
	because of a bug in the HP assembler!	LDO
	R'FLONUM_VECTOR_HEADER(7),7 was translated as if it had been   LDO
	R'FLONUM_VECTOR_HEADER(0),7
	
	I've replaced it with an ADDI instruction.

1991-05-14 21:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.41): Fix think-o in M-x visit-tags-table.

1991-05-14 21:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.154): Change prompt-for-pathname and friends
	to accept a filename as a default.  Previously they required a
	pathname.

1991-05-14 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.113): Fix bug in M-x untabify: char-search
	doesn't set the match region.

1991-05-14 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.112): Fix definition of M-x newline, which
	should always insert a newline instead of sometimes moving forward
	onto a blank line.

1991-05-13 22:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.19): When DUMP-BAND primitive fails, setup
	'RETRY restart for error.

1991-05-13 22:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.111), bufcom.scm (1.89), filcom.scm (1.153),
	fileio.scm (1.99), rmail.scm (1.2), unix.scm (1.16), make.scm
	(3.44): * Change save-some-buffers to accept two required
	arguments.  New   second argument, if true, says that we're about
	to kill the editor.    In that case, buffer-local variable
	buffer-offer-save says what to	  do with buffers that aren't
	visiting files.
	
	* Change name of initialize-buffer! to normal-mode; this procedure
	now   takes two arguments.  The second argument, if false, means
	use any   local variable specifications found in the buffer;
	otherwise, if	inhibit-local-variables is true, the user is asked
	for confirmation.
	
	* Implement variables:	file-precious-flag	find-file-hooks    
	    find-file-not-found-hooks	    find-file-run-dired    
	write-file-hooks

1991-05-13 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/editor.scm (1.202): When an internal error occurs, just
	display its error message, without the "internal error:" prefix.

1991-05-13 22:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autosv.scm (1.27): Handle errors that occur during
	auto-save.

1991-05-13 22:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.38): Implement SLEEP-FOR.

1991-05-13 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.121): [no log message]

1991-05-13 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.26): Extend list of file primitives to
	include a few that were missed.

1991-05-10 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.23): Fix bug -- compiled-code environment
	manipulation was not allowing the global environment as a valid
	interpreter environment.

1991-05-10 18:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modlin.scm (1.9): Change modeline control variables to be
	per-buffer.

1991-05-10 18:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufmnu.scm (1.116): Rename window-minimum- variables to
	window-min-.  Change C-d to move up after marking the buffer,
	instead of down.

1991-05-10 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffrm.scm (1.40): Rename window-minimum- variables to
	window-min-.

1991-05-10 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.102): Change M-x recenter to treat C-u
	argument as meaning "center of window".  Rename window-minimum-
	variables to window-min-.

1991-05-10 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.57): Change PRESERVING-MATCH-DATA to save
	permanent marks instead of indexes.

1991-05-10 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.56): Change PRESERVING-MATCH-DATA to save
	permanent marks instead of indexes.

1991-05-10 01:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edtstr.scm (1.16): Fix typo in last change.

1991-05-10 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.105): Definition CONDITION/REPORT-STRING.

1991-05-10 01:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.43): [no log message]

1991-05-10 01:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: lspcom.scm (1.152), modefs.scm (1.128), schmod.scm
	(1.16): Rename various lisp definition and evaluation commands to
	match Emacs.

1991-05-10 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/motcom.scm (1.41): Change M-x goto-char from 0-based to
	1-based indexing.  Move M-x goto-line and M-x goto-page from this
	file to "lincom.scm".

1991-05-10 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.111): Change commands from 0-based to 1-based
	indexing: what-line, goto-line, what-page, and goto-page.  Change
	goto- commands to prompt for number when no prefix argument. 
	Change variable indent-tabs-mode to be per-buffer.  Redefine M-x
	delete-blank-lines to match description in Emacs manual.

1991-05-10 01:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.99): Rename M-x describe-command to M-x
	describe-function to match Emacs.  Change prompting and
	documentation for apropos commands to reflect fact that their
	arguments are regular expressions.

1991-05-10 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.23): Change evaluation commands to bind
	nearest-repl/output-port to the evaluation output port.  Eliminate
	variable transcript-value-truncate, introduce new variables
	transcript-list-depth-limit and transcript-list-breadth-limit,
	which default to #f.  Rename M-x eval-definition to M-x eval-defun,
	and M-x eval-buffer to M-x eval-current-buffer, both to match
	Emacs.

1991-05-10 01:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.101): Change M-x what-cursor-position to
	report the cursor's position using 1-based (rather than 0-based)
	indexes.

1991-05-10 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.24): Eliminate WRITE-VALUE, which is no longer
	used by evaluation commands.

1991-05-10 00:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edtstr.scm (1.15), kilcom.scm (1.63), regcom.scm (1.19):
	Reimplement kill commands to be exactly like those of Emacs.

1991-05-10 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: dired.scm (1.110), edwin.pkg (1.37): Define variable
	dired-mode-hook.  Add error-handling for various file-system
	operations.  Reimplement list-directory to use `ls' just like
	dired.

1991-05-10 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/debuge.scm (1.42): Eliminate M-x debug-show-rings.

1991-05-10 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufset.scm (1.9): Change to make buffer names
	case-sensitive.

1991-05-10 00:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/strtab.scm (1.43): Change implementation of string tables
	to allow case-sensitive tables.  Change apropos operation to match
	against a regular expression rather than a string.

1991-05-09 20:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fasdump.c (9.51), uxfile.c (1.5), version.h (11.80):
	Change FASDUMP not to do OS_file_remove_link before opening its
	output file.  DUMP-BAND is unchanged.

1991-05-09 20:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.14), io.scm (14.25), runtime.pkg
	(14.104), uerror.scm (14.25), version.scm (14.120): * Change
	FILE-OPEN-OUTPUT-CHANNEL (and consequently all code to open  
	files) not to call FILE-REMOVE-LINK.  Opening an existing output  
	file will consequently overwrite the file rather than deleting it  
	and then opening a new file.
	
	* Add CONDITION-TYPE:DERIVED-FILE-ERROR and translate various
	system	 call errors to that type.
	
	* Define CONDITION/REPORT-STRING to capture common idiom.

1991-05-09 13:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.14): Fix typo in UNIX/USER-HOME-DIRECTORY.

1991-05-09 11:54  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/comwin.scm (1.141): Fixed minor bug in
	%WINDOW-HAS-UP-NEIGHBOR?.

1991-05-08 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.13): Fix typo.

1991-05-08 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.9), microcode/x11base.c (1.21),
	microcode/version.h (11.79): Change X-WINDOW-GET-DEFAULT to
	X-DISPLAY-GET-DEFAULT.

1991-05-08 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.119): Change GET-ENVIRONMENT-VARIABLE to
	return #F if not found.  Rename GET-USER-HOME-DIRECTORY to
	UNIX/USER-HOME-DIRECTORY.

1991-05-08 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: process.scm (1.7), shell.scm (1.4), tterm.scm (1.8):
	Change to handle #F as value from GET-ENVIRONMENT-VARIABLE.

1991-05-08 23:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxpth.scm (14.6), unxprm.scm (1.12): Change
	GET-ENVIRONMENT-VARIABLE to return #F if not found.  Rename
	GET-USER-HOME-DIRECTORY to UNIX/USER-HOME-DIRECTORY.

1991-05-08 18:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/rmail.scm (1.1): Initial revision

1991-05-08 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.21), ed-ffi.scm (1.11), edwin.ldr (1.16),
	edwin.pkg (1.36), make.scm (3.42): Add RMAIL mode.

1991-05-08 18:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.152): Reorganize code to read files, to make
	it more flexible.  New RMAIL mode takes advantage of this extra
	flexibility.  Also write message to typeout window when starting to
	write a large buffer.

1991-05-08 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.9): Must clip text when clearing headers in
	yanked message.

1991-05-08 18:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.37): Fix typo in INSERT-REGION.

1991-05-07 22:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.14): Fix bug in multiply_fixnum
	introduced when re-written to work on the 700s.

1991-05-07 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/paths.scm (1.9): Add procedures to manage new "etc" library
	directory.

1991-05-07 14:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.13): Reorder some operations so
	that overflowing computations in multiply_fixnum will not trap.

1991-05-07 13:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.30): Forgot to add the
	rule for INVOCATION:GLOBAL-LINK.

1991-05-07 13:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.29): Update to match
	68020 compiler version 4.84.  Add assembly-language hooks for
	generic arithmetic.

1991-05-07 13:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: rgspcm.scm (4.2), lapgen.scm (4.36):
	Update to match 68020 compiler version 4.84.

1991-05-07 13:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: compiler.pkg (1.31), make.scm
	(4.84): Update to match 68020 4.84 version.

1991-05-07 13:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.10): Change handling of bad linkage
	sections within the block finder to avoid spuriously crashing after
	a trap.

1991-05-07 13:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.21): Make cache-flushing code model
	dependent: - On shared cache machines, there is no need to flush. 
	- On direct-mapped cache machines, there is no need to flush twice.

1991-05-07 13:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.12): Add assembly language hooks
	for generic arithmetic to handle flonums.

1991-05-07 09:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.84): - New 68040
	closure code.  - Open coding and hooks for quotient and remainder
	supported.  - Direct UUO links to the global environment supported.
	 - compiler:intersperse-rtl-in-lap? - Fixed bug in closure
	analysis.  - Top-level LETs no longer compile arguments separately.
	 - Some support for static variables (not complete).

1991-05-07 09:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.18): - Add knowledge about
	new hooks.

1991-05-07 09:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.30): - New 68040 closure
	code.  - Open coding and hooks for quotient and remainder
	supported.  - Global links supported.  - Constants block now
	includes global links and static variables.

1991-05-06 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.8): Eliminate dummy rmail mode definition.

1991-05-06 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufcom.scm (1.88): Define M-x toggle-read-only here, not in
	"filcom.scm".

1991-05-06 22:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* cref/forpkg.scm (1.6): Fix bug by which variable with no binding
	expressions in package with multiple files was causing cref to
	lose.

1991-05-06 19:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.40), machines/bobcat/rgspcm.scm
	(4.2): Add open codings for quotient and remainder.

1991-05-06 19:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.32): Export
	*interned-global-links*, *interned-static-variables*, and
	compiler:intersperse-rtl-in-lap?

1991-05-06 19:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.41): - Add hooks and codes
	for quotient and remainder.

1991-05-06 18:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.14): Add support for COMMENT LAP
	pseudo-op.

1991-05-06 18:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn3.scm (4.5): - Generate more meaningful label
	names for the constant block.  - Add support for global uuo links
	and static variables.

1991-05-06 18:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (4.11): - Add use of
	compiler:intersperse-rtl-in-lap? - Pass *interned-global-links* and
	*interned-static-variables* to generate/constants-block.

1991-05-06 18:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.16): Add
	compiler:intersperse-rtl-in-lap?

1991-05-06 18:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.34): Initialize
	*interned-global-links* and *interned-static-variables* and clear
	them on recursive compilations.

1991-05-06 18:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.16): Make (access foo ()) in the
	operator position generate a global uuo link.

1991-05-06 18:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlty1.scm (4.18), rtlbase/rtlexp.scm (4.17),
	rtlopt/rcse1.scm (4.21), rtlopt/rinvex.scm (1.5): Add
	invocation:global-link rtl type.

1991-05-06 18:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.27): Hack to make (access foo ()) in
	the operator position of a combination be handled as a UUO link to
	the global environment.

1991-05-06 18:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.9): Top-level lets do not have their
	arguments compiled in separate blocks when
	compiler:compile-by-procedures? is true.

1991-05-06 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.127): Fix typo in last change.

1991-05-06 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.109): Dired mode should inherit from
	Read-only.

1991-05-06 18:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/keymap.scm (1.9): Fix bug: MAX requires at least one
	argument.

1991-05-06 14:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: gconst.scm (4.11), usiexp.scm (4.9), make.scm (4.17): Add
	primitives quotient and remainder.

1991-05-06 14:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.24): Eliminate costly call to
	WITH-CHANNEL-BLOCKING in the input-buffer operations that
	read/discard delimited strings.

1991-05-06 14:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.19): Add hooks for quotient and
	remainder.  Change 68040 closure code to be cheaper (single
	parameter passed now).

1991-05-06 14:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.78), cmpintmd/mc68k.h (1.26), generic.c
	(9.36): Add hooks for quotient and remainder.

1991-05-06 14:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.20), version.scm (14.118): - Add
	trampolines for quotient, remainder, and modulo.  - Redefine
	user-visible quotient, remainder, and modulo so that the compiler
	will do a better job.

1991-05-05 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: global.scm (14.23), make.scm (14.29), runtime.pkg
	(14.103), utabs.scm (14.6), version.scm (14.117): Fix various
	dependency problems in cold-load sequence.

1991-05-05 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.22): Eliminate unused bound variable.

1991-05-05 22:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.9): If type-name of a record is a string,
	don't wrap it with doublequote characters when it is displayed.

1991-05-05 21:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.23): New procedure LIST-OF-STRINGS?.

1991-05-05 21:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comint.scm (1.4), info.scm (1.103), intmod.scm (1.38),
	sendmail.scm (1.7): Change DEFINE-KEY to automatically define
	prefix keys as needed.

1991-05-05 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comtab.scm (1.58), comtab.scm (1.59): Change DEFINE-KEY
	to automatically define prefix keys as needed.

1991-05-05 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.55): Fix bug: local binding of STRING
	interfered with reference intended for global procedure definition.

1991-05-05 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.20), ed-ffi.scm (1.10): Change "comtab.scm"
	to use edwin-syntax-table.

1991-05-05 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.110), hlpcom.scm (1.98): Rename M-x
	^r-bad-command to M-x undefined.

1991-05-05 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: artdebug.scm (1.5), modefs.scm (1.126), info.scm (1.102),
	bufmnu.scm (1.115): Define new major modes READ-ONLY and
	READ-ONLY-NOARG to support various modes like Dired and
	Buffer-Menu.

1991-05-05 16:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/hppacach.c (1.3): Add a -printall option.  Make it
	print somewhat better.

1991-05-05 13:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.16): Improve compatibility-class. 
	Pending undriftings cause COMPATIBILITY, not APPLY-COMPATIBILITY. 
	In other words, if we are forcing every candidate to be a closure
	for compatibility, we can still in-line the call if the arities
	match.

1991-05-04 20:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.55), bchgcl.c (9.41), bchpur.c (9.53),
	boot.c (9.70), fasload.c (9.62), gcloop.c (9.35), purify.c (9.46),
	purutl.c (9.41), uxtrap.c (1.9), version.h (11.77): Add support for
	GLOBAL_OPERATOR_LINKAGE_KIND.

1991-05-04 20:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.46): Add support for caches directly linked
	to specific frames.

1991-05-04 20:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.36): Add support for execute caches
	directly linked to the global environment.
	
	Teach the linker about arity dispatcher entities.
	
	Add generic hooks for quotient, remainder, and modulo.

1991-05-04 20:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.16): Add support for
	GLOBAL_OPERATOR_LINKAGE_KIND.

1991-05-04 20:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasdump.c (9.50): Make third argument to fasdump
	meaningful.  It specifies how environment objects should be
	handled.

1991-05-04 20:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.57): Add GENERIC_TRAMPOLINE_QUOTIENT,
	GENERIC_TRAMPOLINE_REMAINDER, GENERIC_TRAMPOLINE_MODULO, and
	ARITY_DISPATCHER_TAG slots to the fixed-objects vector.

1991-05-04 20:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fixobj.h (9.30): Add GENERIC_TRAMPOLINE_QUOTIENT,
	GENERIC_TRAMPOLINE_REMAINDER, GENERIC_TRAMPOLINE_MODULO, and
	ARITY_DISPATCHER_TAG.

1991-05-04 18:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.146): If looking for local value of variable
	in buffer other than the current one, and the variable doesn't
	appear in the buffer's local bindings, must search the current
	buffer's local bindings too.

1991-05-04 17:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sicp/compat.scm (1.4): Fix implode and explode to handle
	arbitrary objects and fix the handling of strings.

1991-05-04 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/malias.scm (1.2): Disallow null arguments to M-x
	define-mail-alias.

1991-05-04 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: tagutl.scm (1.40), replaz.scm (1.70): Allow null
	replacement string in replacement commands.

1991-05-04 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.21): Fix bug: stack frames that consist of
	multiple subproblems -- where there are no return addresses because
	the compiler knew them -- must be treated as a unit when searching
	for static links or closures.

1991-05-03 13:54  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/: savres.scm (14.18), load.scm (14.22): Move
	command-line-processing code from (RUNTIME SAVE/RESTORE) package to
	(RUNTIME LOAD) package.  Change INITIALIZE-PACKAGE! so that Scheme
	initialization file is loaded before command line is processed. 
	This allows initialization file to add command-line options.

1991-05-02 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/input.scm (1.89): Eliminate unused variable binding.

1991-05-02 02:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.20): Define PUSH_D_CACHE_REGION that
	uses the new cache_flush_region.

1991-05-02 02:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.69): const -> CONST for non-ansi compilers.

1991-05-02 02:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.11): Modify cache_flush_region to
	accept an additional argument specifying which caches to flush.

1991-05-02 02:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.35): Add a comment about improving the
	cache flushing code in enter_compiled_expression.

1991-05-02 02:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (4.10): Undo optimization by which
	blocks with no free references were not linked.  They must be
	linked only to get the appropriate section of the D-cache flushed!

1991-05-01 21:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: argred.scm (1.30), autold.scm (1.50), autosv.scm (1.26),
	basic.scm (1.109), bufcom.scm (1.87), buffer.scm (1.145),
	bufmnu.scm (1.114), comred.scm (1.86), edwin.pkg (1.35), filcom.scm
	(1.151), fileio.scm (1.98), fill.scm (1.50), kilcom.scm (1.62),
	lincom.scm (1.110), macros.scm (1.52), make.scm (3.41), modefs.scm
	(1.125), motcom.scm (1.40), prompt.scm (1.140), replaz.scm (1.69),
	sendmail.scm (1.6), shell.scm (1.3), struct.scm (1.78), tagutl.scm
	(1.39), undo.scm (1.48), wincom.scm (1.100): * Complete redesign of
	command argument code.	New code more closely	resembles that of
	Emacs, with some differences, but most importantly   the argument
	state is stored in a single object that can be passed	around.
	
	* Rename M-x backward-delete-char to M-x delete-backward-char to
	match	Emacs.
	
	* Add BACKUP-MODE argument to WRITE-BUFFER-INTERACTIVE and  
	SAVE-BUFFER, to control the creation of backup files.
	
	* New procedures give absolute limits of buffer, independent of  
	current narrowing:    GROUP-ABSOLUTE-START    GROUP-ABSOLUTE-END   
	  MARK-ABSOLUTE-START	  MARK-ABSOLUTE-END	 
	BUFFER-ABSOLUTE-START	BUFFER-ABSOLUTE-END
	
	* New procedures	WITH-GROUP-UNDO-DISABLED       
	LAST-COMMAND-CHAR
	
	* Extend REF-VARIABLE macro to take optional second arg: a buffer, 
	 meaning the buffer-local value of the variable in that buffer.
	
	* Replace WITH-NARROWED-REGION! with the slightly more useful  
	WITH-TEXT-CLIPPED.  Add new procedures TEXT-CLIP and
	GROUP-TEXT-CLIP   to round out the set of text clipping procedures.

1991-04-29 07:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.68): M-x replace-string and M-x
	replace-regexp are supposed to leave point at the end of the last
	replacement.

1991-04-29 07:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.54): REPLACE-MATCH now returns a mark
	pointing to the end of the replacement rather than the start.

1991-04-29 06:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.6): Provide unwind-protect to delete a
	synchronous process if the process is aborted.

1991-04-29 06:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xterm.scm (1.18), edwin.pkg (1.34), make.scm (3.40):
	Implement asynchronous ^G detection for X, using the real-time
	interrupt.  New procedures X-TIMER-INTERVAL and
	SET-X-TIMER-INTERVAL! allow control over the interrupt's interval,
	which is initially one second.

1991-04-29 06:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.5): Allow FIND-PROGRAM's second argument,
	DEFAULT-DIRECTORY, to be #F meaning none.

1991-04-29 06:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.53): Fix typo in REPLACE-MATCH.

1991-04-26 20:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: gpio.c (1.9), ux.c (1.8), uxio.c (1.14), version.h
	(11.76): Eliminate use of INTERRUPTABLE_EXTENT on read and write
	system calls.  This doesn't work as the system call might finish
	and then check for signals just before returning with a valid
	answer (and thereby losing data).
	
	This code should work OK for 4.3BSD, POSIX, and SYSV systems. 
	Unfortunately there's no good way to make it work for 4.2BSD --
	which probably means some hairy kludge will be needed to get ^G
	interrupts to work on that system.  This will require identifying
	when we go into an input wait on the console.

1991-04-26 14:30  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/x11base.c (1.20): Added control, shift and meta button
	events.

1991-04-26 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xterm.scm (1.17), make.scm (3.39): Changes to match
	microcode version 11.75 -- cannot be used with earlier microcode
	versions.

1991-04-26 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (11.75), x11base.c (1.19), x11graph.c
	(1.9), x11term.c (1.15): This version of the microcode cannot be
	used with Edwin versions before 3.39.
	
	Improvements to X window event handling.  The purpose of these
	improvements is to permit Scheme to read X events from the queue
	without immediately performing their actions; this supports looking
	ahead in the queue to find interrupt characters in Edwin.
	
	* X-DISPLAY-PROCESS-EVENTS no longer does anything special for	
	configure and exposure events that are received by xterm windows.  
	 New primitives XTERM-RECONFIGURE and XTERM-DUMP-RECTANGLE must be 
	  invoked by the Scheme event handler to get the same effect.  New 
	  event type `event_type_expose' is used to return exposure events.
	
	* The coordinates and sizes returned in event objects are now in X 
	 pixel units.  New primitives XTERM-MAP-{X,Y}-{COORDINATE,SIZE} are
	  used to translate these units into xterm character coordinates.

1991-04-25 23:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.38): [no log message]

1991-04-25 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.38): Change M-x tags-query-replace to do
	regexp search.

1991-04-25 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.67): Implement M-x query-replace-regexp and
	M-x replace-regexp.  Change interface to REPLACE-STRING procedure
	to accomplish this.

1991-04-25 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: regexp.scm (1.52), edwin.pkg (1.33): Implement new
	procedures PRESERVING-MATCH-DATA and RE-SUBSTITUTE-REGISTERS. 
	Reimplement REPLACE-MATCH to have same functionality as that
	procedure in GNU Emacs.

1991-04-25 22:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.19): Fix bug: check type of arguments to
	MAKE-RECTANGULAR and MAKE-POLAR, allowing exactly those numbers
	that satisfy REAL?.

1991-04-25 10:40  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/events.scm (14.2): Made sure that the lock on an event
	distributor is restored if you throw out of or into process-events!

1991-04-24 19:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.14): Add missing `static' declarations to
	OS_open_pty_master.

1991-04-24 03:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/malias.scm (1.1): Initial revision

1991-04-24 03:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.5), edwin.ldr (1.15), ed-ffi.scm (1.9),
	edwin.pkg (1.32), decls.scm (1.19), make.scm (3.37): Implement mail
	aliases and ~/.mailrc file.

1991-04-23 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.31): Export
	`group-extract-and-delete-string!'.

1991-04-23 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sendmail.scm (1.4), grpops.scm (1.13): Fix typo.

1991-04-23 20:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.144): Change `group-un-clip!' to
	`group-widen!'.

1991-04-23 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regops.scm (1.83): Change `mark-right-char' and
	`mark-left-char' to return #F at the buffer limits.  New procedures
	`group-narrow!' and `group-widen!'.  Eliminate `group-un-clip!'.

1991-04-23 20:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.49): Change message generated by M-x
	set-fill-column to match Emacs.

1991-04-23 20:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.36): Eliminate `match-string'.  New
	procedures `narrow-to-region' and `widen'.

1991-04-23 20:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.61): Eliminate reference to `match-string'.

1991-04-23 20:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.101): Eliminate reference to `group-un-clip!'.

1991-04-23 20:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.12): New procedure
	group-extract-and-delete-string!.

1991-04-23 20:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.108): Change prompting for prefix chars to be
	more like that of Emacs.  Update some variable documentation
	strings.  Make comment-column be per-buffer.

1991-04-23 03:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.3): * Change arguments to string and regexp
	search procedures.  New   arguments are (PATTERN MARK END
	#!OPTIONAL CASE-FOLD-SEARCH).
	
	* Reimplement paragraph and region filling commands, to fix bugs
	and   create new functionality.  Default region filling is now done
	by   paragraphs rather than treating the entire region as a single 
	 paragraph.
	
	* Implement M-x mail-fill-yanked-message.

1991-04-23 02:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.36): * Change arguments to string and regexp
	search procedures.  New   arguments are (PATTERN MARK END
	#!OPTIONAL CASE-FOLD-SEARCH).
	
	* Reimplement paragraph and region filling commands, to fix bugs
	and   create new functionality.  Default region filling is now done
	by   paragraphs rather than treating the entire region as a single 
	 paragraph.
	
	* Implement M-x mail-fill-yanked-message.

1991-04-23 02:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fill.scm (1.48), regexp.scm (1.51), schmod.scm (1.15),
	search.scm (1.149), sendmail.scm (1.2), tparse.scm (1.66): * Change
	arguments to string and regexp search procedures.  New	 arguments
	are (PATTERN MARK END #!OPTIONAL CASE-FOLD-SEARCH).
	
	* Reimplement paragraph and region filling commands, to fix bugs
	and   create new functionality.  Default region filling is now done
	by   paragraphs rather than treating the entire region as a single 
	 paragraph.
	
	* Implement M-x mail-fill-yanked-message.

1991-04-23 02:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: sercom.scm (1.57), syntax.scm (1.70), tagutl.scm (1.37),
	fileio.scm (1.97): Always supply LIMIT argument to search
	procedures.

1991-04-23 02:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: hlpcom.scm (1.97), info.scm (1.100), iserch.scm (1.12),
	lincom.scm (1.109), replaz.scm (1.66): Always supply LIMIT argument
	to search procedures.

1991-04-23 02:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.67): When a variable value validity test is
	failed, signal an editor error instead of a Scheme error.

1991-04-23 02:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.150): Fix bug in M-x set-visited-file-name --
	couldn't unset buffer's file name.

1991-04-23 02:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.143): Fix think-o in `set-buffer-pathname!'.

1991-04-20 21:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/sendmail.scm (1.1): Initial revision

1991-04-20 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.108): Dired of a wildcard specification didn't
	work -- now fixed.

1991-04-20 20:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.106), edwin/search.scm (1.148),
	edwin/sercom.scm (1.56), edwin/shell.scm (1.2), edwin/simple.scm
	(1.35), edwin/struct.scm (1.77), edwin/things.scm (1.80),
	edwin/undo.scm (1.47), edwin/unix.scm (1.15), edwin/utils.scm
	(1.22): * Implement mail sending.
	
	* Implement M-x append-to-file, M-x tabify, C-u M-x indent-region.
	
	* Change M-x undo to move point to the location of the most recent 
	 undone change.  This restores the behavior that was in effect
	before	 the last change to undo.
	
	* Implement variable `enable-emacs-write-file-message', by default 
	 true, which changes file-output messages to be like Emacs.
	
	* Fix simple bugs in auto save code, local variable binding.
	
	* Add new slot to buffer, LOCAL-BINDINGS-INSTALLED?, that speeds up
	  the test to determine if the buffer's local bindings are the ones
	  currently installed in the variable value cells.
	
	* Reimplement character search, character match, and string match. 
	  New implementation does not use regular expression primitives.   
	A new set of low-level search and match primitives provides more   
	power than the old ones did.
	
	* Implement `run-synchronous-process'.	Reimplement `shell-command'
	  and `shell-command-region' in terms of this new procedure.
	
	* Implement `insert-region', which copies text directly from one  
	buffer to another without making an intermediate copy.

1991-04-20 20:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autosv.scm (1.25), buffer.scm (1.142), bufinp.scm (1.4),
	bufmnu.scm (1.113), cinden.scm (1.5), comint.scm (1.3), comman.scm
	(1.66), debuge.scm (1.41), decls.scm (1.18), dired.scm (1.107),
	ed-ffi.scm (1.8), edwin.ldr (1.14), edwin.pkg (1.30), filcom.scm
	(1.149), fileio.scm (1.96), fill.scm (1.47), hlpcom.scm (1.96),
	info.scm (1.99), kilcom.scm (1.60), lincom.scm (1.108), macros.scm
	(1.51), make.scm (3.35), modefs.scm (1.124), process.scm (1.4),
	regexp.scm (1.50): * Implement mail sending.
	
	* Implement M-x append-to-file, M-x tabify, C-u M-x indent-region.
	
	* Change M-x undo to move point to the location of the most recent 
	 undone change.  This restores the behavior that was in effect
	before	 the last change to undo.
	
	* Implement variable `enable-emacs-write-file-message', by default 
	 true, which changes file-output messages to be like Emacs.
	
	* Fix simple bugs in auto save code, local variable binding.
	
	* Add new slot to buffer, LOCAL-BINDINGS-INSTALLED?, that speeds up
	  the test to determine if the buffer's local bindings are the ones
	  currently installed in the variable value cells.
	
	* Reimplement character search, character match, and string match. 
	  New implementation does not use regular expression primitives.   
	A new set of low-level search and match primitives provides more   
	power than the old ones did.
	
	* Implement `run-synchronous-process'.	Reimplement `shell-command'
	  and `shell-command-region' in terms of this new procedure.
	
	* Implement `insert-region', which copies text directly from one  
	buffer to another without making an intermediate copy.

1991-04-20 20:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.93): Optimize drawing of highlighted lines. 
	Previously, without optimization, almost any change would cause a
	complete redrawing of the mode line.

1991-04-20 20:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.92): Change procedures that set point and
	mark to copy their argument.  This is necessary in case the
	argument is a permanent mark that is later made temporary.

1991-04-20 02:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (4.16): Can't integrate scode-eval any longer, since
	it's now a compound procedure.	This was overlooked by accident
	because "usicon" used scode-constant? to test whether the constants
	in "gconst" were reasonable -- and this predicate returns true for
	compiled procedures.  Now the predicate used is something more
	discriminating, which should not permit unreasonable values in the
	.bin file.

1991-04-20 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: gconst.scm (4.10), usicon.scm (4.2): Can't integrate
	scode-eval any longer, since it's now a compound procedure.  This
	was overlooked by accident because "usicon" used scode-constant? to
	test whether the constants in "gconst" were reasonable -- and this
	predicate returns true for compiled procedures.  Now the predicate
	used is something more discriminating, which should not permit
	unreasonable values in the .bin file.

1991-04-18 18:36  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.102): Added hooks for syntax-expression
	and scode-eval.

1991-04-18 18:35  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.16): Added hook for syntax-expression.

1991-04-18 18:34  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/global.scm (14.22): Added hook for scode-eval.

1991-04-15 16:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.83),
	machines/bobcat/compiler.pkg (1.31), base/toplev.scm (4.33): Rename
	compile-scode to compile-scode/internal.  Define and export
	compile-scode.	Make compiled code blocks generated by calls to
	compile-procedure and compile-scode contain the debugging
	information (rather than have it dropped).

1991-04-15 16:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.21), load.scm (14.21), runtime.pkg
	(14.101), syntax.scm (14.15), version.scm (14.116), xeval.scm
	(1.4): Add hook/extended-scode-eval so that expressions can be
	integrated or compiled before they are evaluated.
	
	Change compiled-code-block/dbg-info to correctly handle compiled
	code blocks whose debugging slot holds a dbg-info structure.

1991-04-15 12:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/x11graph.c (1.8): Casts to make it run under SunOS 4.03
	when compiled by Sun cc.

1991-04-13 00:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.46): Change interface of `fill-region'
	procedure to allow caller to supply fill prefix and column as
	arguments.

1991-04-12 23:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autosv.scm (1.24), unix.scm (1.14): Change interface of
	`os/auto-save-pathname' so that it will generate a correct result
	for buffers that have no visited pathname.

1991-04-12 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.34): [no log message]

1991-04-12 19:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.95), hlpcom.scm (1.95), info.scm (1.98):
	Add third argument to `read-buffer?', which prevents updating the
	buffer's pathname and modification flags if it is false.

1991-04-12 19:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.148): Change `revert-buffer' and
	`set-visited-file-name' commands to recognize and handle auto-save
	files correctly.  Improve performance of filename completion by
	eliminating incompatible "feature" of further completion when a
	directory contains only a single file (which never happens in
	unix).

1991-04-12 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: undo.scm (1.46), edwin.pkg (1.29): Don't clear
	buffer-modification flag unless the buffer's contents match the
	contents of the file on disk.  Only move point when undoing records
	whose type is BOUNDARY or NOT-UNDOABLE.

1991-04-12 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.13): Rewrite directory-listing procedures to
	use new primitives -- REQUIRES MICROCODE VERSION 11.74 OR LATER. 
	Implement procedure `file-readable?'.

1991-04-12 19:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.107): Fix missing argument in
	`reindent-then-newline-and-indent'.

1991-04-12 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.11): Make sure that undo recording happens
	before any changes -- this is assumed and required by the undo
	code.

1991-04-12 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/c-mode.scm (1.46): Fix name mismatches on two key bindings
	for C mode.  Add flashing of matching delimiter for close paren and
	close curly brace.

1991-04-12 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.141): Change buffer `auto-save-modified' flag
	to `auto-save-state'.  This change allows us to recognize when a
	valid auto-save file has been saved for the current editing
	session, which is needed to correctly implement `revert-buffer'.

1991-04-12 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autosv.scm (1.23): Implement procedure
	`rename-auto-save-file!'.  Implement command `do-auto-save'.

1991-04-11 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osfs.h (1.2), prosfs.c (1.3), uxfs.c (1.4), version.h
	(11.74): Add new primitives `directory-open-noread' and
	`directory-read-matching', to facilitate filename completion.

1991-04-11 20:12  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* sicp/graphics.scm (1.3): Make CLEAR-POINT, DRAW-LINE-TO,
	DRAW-POINT, GRAPHICS-TEXT, and POSITION-PEN all automatically call
	INIT-GRAPHICS if graphics hasn't already been initialized. 
	CLEAR-GRAPHICS already does this.

1991-04-10 23:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: output.scm (14.9), runtime.pkg (14.100), version.scm
	(14.115): Implement new I/O port operations READ-SUBSTRING and
	WRITE-SUBSTRING that do block I/O to or from part of a given
	string.

1991-04-10 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.33): Various changes.  Requires runtime version
	14.115 or later.

1991-04-10 23:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.7): Implement cost analysis to estimate when
	scrolling is likely to be more expensive than just redrawing, and
	forbid scrolling in those cases.  This eliminates nasty problem of
	C-v doing very slow scrolling operation to save two lines that
	could be redrawn in much less time.

1991-04-10 23:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: screen.scm (1.92), edwin.pkg (1.28): When drawing a new
	line over an old one that is known to be blank, don't draw either
	leading or trailing spaces; previously was drawing leading spaces
	in this case.  Also implement procedure to estimate the cost of
	drawing a specific screen line, for use in scrolling optimization.

1991-04-10 23:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.106): Change dired to use an `ls' subprocess
	rather than built-in primitives.  This is both faster and somewhat
	more flexible.	Also implement most of the dired commands that were
	missing from Edwin.  Still missing: compression commands and view
	mode command.

1991-04-10 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.3): Change `shell-command' and
	`shell-command-region' to accept any mark as the output mark, and
	convert it into an appropriate left-inserting mark.

1991-04-10 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.34): Re-enable parenthesis matching in typein
	window.  Change "off-window" matching message to be prefixed by
	"Matching ".

1991-04-08 18:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.114): [no log message]

1991-04-08 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.17): Eliminate unused variable.

1991-04-08 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.8): Cache default display so that the
	trivial dumb use of this procedure does not result in multiple
	connections to the X server.

1991-04-06 01:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sicp/compat.scm (1.3): Define student-pp that understands
	old-style arguments.

1991-04-06 01:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sicp/studen.scm (1.8): Make pp be bound to student-pp.

1991-04-06 01:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sicp/studen.scm (1.7): Patch syntax table so that
	MAKE-ENVIRONMENT works.

1991-04-06 00:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sicp/studen.scm (1.6): Fix bug with making [] extended
	alphabetic.
	
	char-set/atom-delimiters must be changed in the parser to exclude
	[].  Otherwise the parser goes into an infinite loop since when
	peeking any of them, we will read until a delimiter is found, but
	it will work as a delimiter, so the empty string will be interned,
	and we will dispatch on the peeked char again, ...

1991-04-02 23:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.294): Fix bug that prevented override message
	from being written at the right time in some circumstances.

1991-04-02 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/linden.scm (1.119): Fix bug that made C-u TAB work
	incorrectly under some conditions.

1991-04-02 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.22): Catch errors that happen while reading
	expressions from a buffer.

1991-04-02 23:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.21): Catch errors that happen while reading
	expressions from a buffer.

1991-04-02 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufmnu.scm (1.112): When marking buffers for deletion, use
	D instead of K.

1991-04-02 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.32): [no log message]

1991-04-02 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.293): Fix bug that prevented the typein
	window from being correctly updated when a message was erased.

1991-04-02 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwfs.scm (1.14): Fix fencepost error in
	`scroll-lines-up'.

1991-04-02 19:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.26):
	`block/next-continuation-offset', when it found that the next thing
	up on the stack was an "always-known" continuation, failed to take
	that continuation's offset into account when determining the
	distance to the continuation above that.

1991-04-02 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.2): In `shell-command-region', if the region
	is empty, must close the input channel of the subprocess.

1991-04-02 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.31): [no log message]

1991-04-02 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.10): Fix think-o in `group-delete!'.

1991-04-02 14:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwin.scm (1.292), bufwiu.scm (1.19), bufwmc.scm (1.13),
	fileio.scm (1.94), grpops.scm (1.9), regops.scm (1.82), struct.scm
	(1.76): Change mark data structure to store index instead of
	position.  Eliminate `mark-position' operation, which is no longer
	useful.
	
	These changes require microcode version 11.73 or later.

1991-04-02 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: edwin.h (1.5), rgxprim.c (1.9), version.h (11.73):
	Update description of Edwin mark structure to match change in Edwin
	version 3.31.  Previous versions of Edwin will not work correctly
	with this microcode.

1991-04-01 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/rtlgen.scm (4.25),
	machines/bobcat/make.scm-68040 (4.82): In
	`block/next-continuation-offset', if the next continuation is
	always known, then it won't be pushed and the offset must include
	the distance to the next continuation after that.

1991-04-01 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwfs.scm (1.13): Fix bugs associated with continuation
	lines: when scrolling, lines that are continued off the top or
	bottom of the window must be redrawn instead of scrolled.  Also fix
	typo in last change that caused continued lines to draw only their
	last line in most cases.

1991-04-01 14:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.18): In `maybe-scroll', if the lines are
	being scrolled off the window, don't forget to deallocate the
	structures used to describe them.

1991-04-01 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwfs.scm (1.12): Fix bug: lines that were clipped at a
	window's top were not being drawn correctly.

1991-04-01 05:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwfs.scm (1.11), bufwin.scm (1.291), bufwiu.scm (1.17),
	bufwmc.scm (1.12), edtfrm.scm (1.84), edwin.pkg (1.27), image.scm
	(1.128), make.scm (3.30), modlin.scm (1.8), modwin.scm (1.36),
	screen.scm (1.91), utlwin.scm (1.57): * Redesign redisplay to get
	line-contents strings from the screen	abstraction and write
	directly on those strings, thus avoiding much	intermediate
	copying and the consequent computation.  Eliminate as	much
	intermediate consing as possible from the image-generation   code.
	
	* Eliminate `string-base' window class, which was storing too much 
	 information for each buffer line.  Instead, use new `outline'	
	abstraction, which keeps track of two pieces of information for
	each   line: the number of characters in the line and the height of
	the   line's image on the screen.  This is all that is needed when 
	 computing what needs to be redrawn -- all other information is  
	already being stored in the screen abstraction.
	
	* New `outline' and `o3' objects are explicitly managed for each  
	window.  Instead of being discarded after use, they are saved for  
	reuse later, preventing the generation of garbage during most  
	redisplay.
	
	* Fix bug in redisplay: if the image of the last line in a window  
	extends past the bottom of the window, and the point moves, we must
	  check to see if it has gone offscreen, even if it is on a
	displayed   line.

1991-04-01 05:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.75): If a buffer has a `display-start' mark,
	and the buffer is narrowed, the `display-start' must be eliminated
	if it is outside the narrowed region.

1991-04-01 01:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.12): Fix bug that prevented "//" at end of
	pathname string from meaning "/".

1991-04-01 01:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.147): Fix bug that caused dired buffer of "/"
	to have the name "*random*".

1991-03-28 20:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.19): Add JMiller's
	comments and make some edits incorporating some suggestions by
	JMiller, MarkF, and Arthur.

1991-03-28 15:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.68): Make the compiler interface reset itself
	after restarting a dumped scheme.  On some machines, the cache
	description needs to be recached.

1991-03-28 15:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.72): Some patches for the NeXT, and other
	cacheing 68040s.

1991-03-28 15:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.25): Change NeXT cache flushing
	code because "trap #2" does not preserve %d0.

1991-03-28 15:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.18): Eliminate unnecessary
	parentheses that were confusing Asmcvt.

1991-03-28 00:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxio.c (1.13): Fix initialization of aggregate variable
	to accommodate the HP C compiler.

1991-03-28 00:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.24): Add some site
	conditionalization so that the same binaries will work for both 7.0
	and 7.05 (the sources already did).
	
	Change #error into #include "error:.." because HP's cpp does not
	understand it even though it is in the ANSI standard.

1991-03-28 00:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.34): Change #error into #include "error:.."
	because HP's cpp does not understand it even though it is in the
	ANSI standard.

1991-03-28 00:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.8): Fix non-portable cpp hack in the
	definition of sighnd_stop.

1991-03-27 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.33): Don't use temporary messages to flash
	matching parentheses in the minibuffer.

1991-03-27 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comint.scm (1.2): Fix thinko in `make-comint'.

1991-03-26 13:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/mc68k.m4 (1.17), version.h (11.71): Add
	handling of floating point in assembly language for generic
	arithmetic.

1991-03-26 08:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.23): Starting loop boundary on
	heap-clearing loop in allocate_closure was incorrect.

1991-03-25 17:03  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.16): Fixed bug about boa-constructors of
	record types.

1991-03-24 18:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr2.scm (1.18): Fix bug in CMP and
	CMPI instructions.

1991-03-24 18:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/mc68ktgl.scm (1.1): Initial revision

1991-03-24 18:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: make.scm-68040 (4.81), lapgen.scm
	(4.40), machin.scm (4.24), rules3.scm (4.29): Conditionalization
	and changes for 68040 format closures.

1991-03-24 00:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.43): read_a_char was not handling \t and
	\b correctly.

1991-03-23 22:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.22): Fix a problem with
	allocate_closure:  All words must be initialized in order to make
	the heap parseable.  This is needed by relocate_block after
	disk-restore.

1991-03-23 20:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.48): Specifying ci_version or
	ci_processor imply upgrade_cc.	This makes the command lines used
	for the cross-compiler much terser.

1991-03-23 20:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.61): Cast pointer to avoid compiler
	warning.

1991-03-23 19:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.21): Fix allocate_closure.

1991-03-22 21:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwmc.scm (1.11): Fix typo in `predict-start-line'.

1991-03-22 20:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.24): Supply missing case in unassigned
	variable trap.

1991-03-22 01:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.20): Move cache flushing code out
	of the 68040 region since it is needed even when using the 68020
	format.

1991-03-22 01:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpgc.h (1.15), cmpint.c (1.33): Move NOP macro from
	cmpint.c to cmpgc.h since it is also needed elsewhere.

1991-03-21 23:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.19): Make it compile under HP-UX
	when (COMPILER_PROCESSOR_TYPE == COMPILER_MC68040_TYPE).

1991-03-21 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.140), buffrm.scm (1.39), bufwfs.scm (1.10),
	bufwin.scm (1.290), bufwiu.scm (1.16), bufwmc.scm (1.10), decls.scm
	(1.17), ed-ffi.scm (1.7), edwin.ldr (1.13), edwin.pkg (1.26),
	evlcom.scm (1.20), fileio.scm (1.93), image.scm (1.127), iserch.scm
	(1.11), kilcom.scm (1.59), lincom.scm (1.106), make.scm (3.29),
	modlin.scm (1.7), motion.scm (1.83), regops.scm (1.81), screen.scm
	(1.90), struct.scm (1.74), things.scm (1.79), utlwin.scm (1.56): *
	Each group object now has a unique associated buffer, and vice	
	versa.	This allows low-level group operations to access  
	buffer-local variables associated with the group, such as  
	`tab-width'.  New procedures: `group-buffer', `mark-buffer', and  
	`group-tab-width'.
	
	* Handling of `truncate-lines' and `tab-width' buffer-local
	variables   is fixed.
	
	* Extensive rewriting of redisplay, screen, and image code to
	squeeze   a little more performance from it.
	
	* Eliminate truncating buffer output ports, because they were
	unused,   and depended on a feature that is no longer viable.
	
	* Code to read files into buffers is redesigned.  Previously it
	read   the file into a string, and then inserted the string into
	the   buffer.  Now it reads the file directly into the buffer.
	
	* Fix representation of characters in the range 200 to 377 octal.  
	 Their images are now four-character octal sequences; previously
	the    images were the characters themselves.

1991-03-21 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.32): Add new procedure
	`extract-and-delete-string', which combines `extract-string' and
	`delete-string' into a single operation.

1991-03-21 19:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.8): Slight tweak of `group-extract-string' to
	improve performance.

1991-03-21 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.146): Eliminate commented-out printing
	commands.  These will be rewritten later.

1991-03-21 18:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.60), cmpauxmd/mc68k.m4 (1.16), cmpgc.h
	(1.14), cmpintmd/mc68k.h (1.18), cmpint.c (1.32), const.h (9.37),
	fasload.c (9.61), memmag.c (9.46), version.h (11.70): Changes for
	MC68040.  Ansification of cmpint.c.

1991-03-21 15:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/typename.txt (1.1): Initial revision

1991-03-21 04:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcompr.scm (1.11): Add two new cases of foldable
	expressions, to permit certain string operations to be folded.

1991-03-18 16:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.59): Fix bug in Clear_Memory introduced
	when constant space overwriting hack was added.  It was fixed in
	memmag.c, but not here!

1991-03-16 03:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.28): Some performance improvements in the
	redisplay code.

1991-03-16 03:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: screen.scm (1.89), tterm.scm (1.6), xterm.scm (1.16):
	Change screen object: remove operation/preempt-update? and replace
	it with preemption-modulus and operation/discretionary-flush.  Use
	this to speed up inner loop of screen-update.

1991-03-16 03:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwmc.scm (1.9), bufwiu.scm (1.15), bufwin.scm (1.289):
	Implement `predict-y-limited' and use it in place of `predict-y' to
	guarantee that the bounds on predictions are related to the size of
	the window rather than the size of the buffer.

1991-03-15 19:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/process.scm (1.1): Initial revision

1991-03-15 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autosv.scm (1.22), basic.scm (1.107), buffer.scm (1.139),
	bufset.scm (1.8), comred.scm (1.85), curren.scm (1.91), decls.scm
	(1.16), ed-ffi.scm (1.6), editor.scm (1.201), edtstr.scm (1.14),
	edwin.ldr (1.12), edwin.pkg (1.25), filcom.scm (1.145), input.scm
	(1.88), intmod.scm (1.37), kmacro.scm (1.33), make.scm (3.27),
	modlin.scm (1.6), screen.scm (1.88), simple.scm (1.31), tterm.scm
	(1.5), window.scm (1.154), xterm.scm (1.15): This version of Edwin
	requires microcode version 11.69 and runtime version 14.113.
	
	* Implement Emacs-style subprocesses, RCS support, and Shell mode.
	
	* Add code to M-x save-buffers-kill-edwin to request confirmation
	when   there are modified buffers or active processes.
	
	* Change default handling of Scheme errors that occur while Edwin
	is   running (i.e. errors in the Edwin implementation): such errors
	are   now caught, causing a message to be written to the
	minibuffer, and   aborting the current command.  This behavior may
	be overridden by   the Scheme variable `debug-internal-errors?' or
	the Edwin variable   `debug-on-internal-error'.
	
	* Change M-x find-alternate-file not to signal an error if the
	current   buffer is not visiting a file.
	
	* Change Scheme Interaction mode to have input history with same  
	commands as Shell mode; both are based on Olin Shivers' comint
	mode.
	
	* Change buffer to have default-directory field that is separate
	from   the pathname and truename fields.  All buffers have a
	default   directory, even if they aren't visiting files.  Change
	the `cd'   command to change a buffer's default directory.  New
	command `pwd'	shows you the default directory of the current
	buffer.
	
	* Fix bug in `variable-local-value'.  Rewrite implementation of
	local	variable bindings to improve performance.
	
	* Change filename prompting and completion procedures to make them 
	 more flexible and modular.

1991-03-15 18:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comint.scm (1.1), shell.scm (1.1): Initial revision

1991-03-15 18:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comman.scm (1.65): Rewrite
	`invoke-variable-assignment-daemons!' to improve performance.

1991-03-15 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwin.scm (1.288), bufwiu.scm (1.14): Fix bug in
	redisplay: when narrowing or widening a buffer, its windows
	sometimes got confused, which could produce various errors.

1991-03-15 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: c-mode.scm (1.45), cinden.scm (1.4), dired.scm (1.105),
	info.scm (1.97), loadef.scm (1.8), tagutl.scm (1.36): Change most
	auto-loading files to be loaded when Edwin is built.  Only a few
	rarely used files remain auto-loading now.

1991-03-15 18:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.73): New procedures provide support for
	side-effects on permanent marks:     set-mark-index!	
	move-mark-to!	  mark-right-inserting-copy    
	mark-left-inserting-copy

1991-03-15 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/ring.scm (1.10): Use `modulo' instead of `remainder' to
	force ring indexes into the right range.  `remainder' is incorrect
	if the argument is negative.

1991-03-15 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.105): Fix fencepost error in
	`re-compile-char-set'.

1991-03-15 18:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regexp.scm (1.49): Add operations to do regular-expression
	search and match on strings.

1991-03-15 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/macros.scm (1.50): * Fix `define-named-structure' to make
	the definitions of slot indices   integrable.
	
	* Change `define-command' to give a meaningful debugging name to
	the   procedure that implements the command.
	
	* Change `define-variable' to accept an optional fourth argument,  
	which is a value validity test.

1991-03-14 18:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxio.c (1.12), version.h (11.69), x11base.c (1.18):
	Change callers of `UX_select_input' to call it when the operating
	system makes it available.  Previously they attempted to predict
	when it would be needed, which sometimes failed and is in general
	unmodular.

1991-03-14 05:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.12): Delete all subprocesses when exiting
	Scheme.

1991-03-13 23:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.23), process.scm (1.11), runtime.pkg
	(14.99), version.scm (14.113): Add support to send SIGHUP (hangup)
	signal to subprocesses.  Use of this support requires microcode
	11.68 or later (but if not used older microcodes will work.)

1991-03-13 23:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.19): Don't print hash number for value that
	is a number.

1991-03-13 23:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.23): Fix typo.

1991-03-13 23:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osproc.h (1.5), osterm.h (1.7), prosio.c (1.6),
	prosproc.c (1.8), prosterm.c (1.9), uxio.c (1.11), uxproc.c (1.10),
	uxterm.c (1.13), version.h (11.68), x11base.c (1.17): * New
	primitives `process-hangup' and `pty-master-hangup' support  
	sending of SIGHUP to subprocesses.
	
	* Bug fixes for channel registering and selection.

1991-03-12 18:18  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* sicp/studen.scm (1.5): Include RESTART in the list of
	USER-GLOBAL-NAMES, variables available after
	(DISABLE-LANGUAGE-FEATURES).  This means students will have access
	to it.

1991-03-11 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.22), process.scm (1.10), runtime.pkg
	(14.98), version.scm (14.112): Add new procedures for microcode
	11.67: `channel-register', `channel-unregister',
	`channel-registered?', `channel-select-then-read', and
	`subprocess-global-status-tick'.

1991-03-11 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osio.h (1.7), osproc.h (1.4), prosio.c (1.5),
	prosproc.c (1.7), uxio.c (1.10), uxio.h (1.2), uxproc.c (1.9),
	version.h (11.67), x11base.c (1.16): * New primitives
	`channel-register', `channel-unregister', and  
	`channel-registered?' allow registering of a set of channels that
	is   to be watched for input at certain points.
	
	* New primitive `channel-select-then-read' is like `channel-read',
	but   returns #T if the given channel has no input but some other  
	registered channel has some input instead.
	
	* Primitive `x-display-process-events' now returns #T if there are
	no   input events but a registered channel has some input.
	
	* Primitive `make-subprocess' now permits the "inheritance" of	
	Scheme's control terminal even when there is none.
	
	* New primitive `process-status-sync-all' synchronizes the status
	of   all subprocesses: it returns #T iff some status has changed
	since	the last call to this primitive.

1991-03-11 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.22): Fix typo in handler for system-call
	errors.

1991-03-11 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.13): Fix typo in `error:divide-by-zero'.

1991-03-10 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: display.scm (1.4), edtstr.scm (1.13), edwin.pkg (1.24),
	input.scm (1.87), iserch.scm (1.10), lspcom.scm (1.151), make.scm
	(3.26), screen.scm (1.87), simple.scm (1.30), tterm.scm (1.4),
	window.scm (1.153), winout.scm (1.5), xterm.scm (1.14): Change
	keyboard input to use special operations defined by the display,
	rather than input ports with standard input operations.

1991-03-10 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.21), runtime.pkg (14.97), uerror.scm
	(14.21), version.scm (14.111): Change method by which port errors
	are signalled.	Previously a condition handler was bound for every
	I/O operation, which made I/O painfully slow as each binding cost
	at least one hundred machine instructions.  Now, an I/O channel can
	have an associated port, and when a system-call error occurs, the
	file descriptor associated with the error is mapped back to the
	associated port, if any, and a port error is signalled instead.

1991-03-10 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.9): Don't generate full cref by default.

1991-03-09 20:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.h (1.22), utabmd.scm (9.56): Add `syscall_select'.

1991-03-09 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: process.scm (1.9), runtime.pkg (14.96), version.scm
	(14.110): Subprocess support in this version requires microcode
	version 11.66 or later.
	
	* Subprocess abstraction changed to use microcode's new process
	status	 synchronization.  The procedure `subprocess-status' causes
	the   status information to be synchronized; subsequently  
	`subprocess-exit-reason' returns the reason corresponding to that  
	status.  Likewise, the new procedure `subprocess-status-tick'  
	returns an object representing the time-stamp associated with this 
	 status; when the status changes, the tick is changed to a new
	value.	  Ticks are unique objects that are comparable using `eq?';
	they are    not ordered.
	
	* New procedure `subprocess-remove!' removes a property from a	
	subprocess (maybe this is a bad name?).

1991-03-09 16:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osproc.h (1.3), prosproc.c (1.6), uxproc.c (1.8),
	uxproc.h (1.3), version.h (11.66): * Process status now
	synchronized as follows: new primitive	 `process-status-sync'
	freezes the status and exit reason, returning	#T if it has
	changed since the last synchronization, or #F if it   hasn't
	changed.  Primitives `process-status' and `process-reason'   return
	the frozen status information but do not affect the  
	synchronization.
	
	* Primitives `process-wait' and `process-continue-foreground' no  
	longer return a value.	Previously they returned the process
	status.

1991-03-08 14:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosproc.c (1.5), uxproc.c (1.7): Permit a process to
	be deleted regardless of its status.

1991-03-07 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: process.scm (1.8), runtime.pkg (14.95): Change
	procedures that return a process status to return just the status
	and not the exit reason.  Add new procedure
	`subprocess-exit-reason' to get that information.

1991-03-07 22:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxproc.c (1.6), prosproc.c (1.4): Change
	`process-reason' primitive to return 0 when the process is running,
	rather than signalling an error.

1991-03-07 20:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osterm.h (1.6), prosterm.c (1.8), uxterm.c (1.12),
	version.h (11.65): Add new primitive `have-ptys?'.

1991-03-06 23:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: process.scm (1.7), runtime.pkg (14.94): Retain
	`filename' and `arguments' fields of process in subprocess
	structure, and provide accessors to get them.  Add a properties
	list to the subprocess structure.

1991-03-06 18:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.18), emacs.scm (14.8), runtime.pkg (14.93):
	Don't show hash number when REPL value is an interned symbol.

1991-03-06 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/comutl.c (1.20): Fix stack-address primitives to work
	on machines that don't have a trivial mapping between address and
	datum.

1991-03-06 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* sicp/: studen.scm (1.4), sbuild.scm (1.3): Update for new error
	system and changes to REPL names.

1991-03-06 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.11): Don't load option files more than
	once.

1991-03-06 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (14.12), runtime.pkg (14.92), version.scm
	(14.109): Add new procedure `bind-default-condition-handler'.

1991-03-06 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.18): Change an instance of
	`error:bad-range-argument' to `error:divide-by-zero'.

1991-03-05 22:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.18): Fix typo and add
	ADD-PSEUDO-REGISTER-ALIAS!

1991-03-05 20:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (4.80): Fix bug: RTL
	generation of return statement whose value is a constant or a
	trivially-closed procedure was incorrect.  Part of the code
	generation assumed that the value would be used directly, while
	another part assumed that it would be stored in a register and then
	the register would be referenced.  Now both parts agree that the
	value is used directly in this case.

1991-03-05 19:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/fndvar.scm (1.6),
	machines/bobcat/make.scm-68040 (4.80), machines/mips/make.scm-big
	(4.80), machines/mips/make.scm-little (4.80): Fix bug: RTL
	generation of return statement whose value is a constant or a
	trivially-closed procedure was incorrect.  Part of the code
	generation assumed that the value would be used directly, while
	another part assumed that it would be stored in a register and then
	the register would be referenced.  Now both parts agree that the
	value is used directly in this case.

1991-03-05 19:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.35), version.h (11.64): Fix typo in
	bignum =.

1991-03-05 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.17): Merge in some of
	Arthur's and Markf's comments.	Tag the rest.

1991-03-01 23:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.5): Make call/cc more obvious.

1991-03-01 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.13): Don't generate full
	cref by default.

1991-03-01 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.20): Fix other input-buffer operations to
	recover gracefully when the buffer's channel is closed.

1991-03-01 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.19): Fix other input-buffer operations to
	recover gracefully when the buffer's channel is closed.

1991-03-01 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: cref.pkg (1.4), forpkg.scm (1.5), make.scm (1.7),
	toplev.scm (1.4): * Add new procedure, CREF/GENERATE-CREF-UNUSUAL,
	that writes a ".cref"	file containing only the unusual cref
	information, such as unbound   variables or multiple definitions. 
	Change	 CREF/GENERATE-CONSTRUCTORS to call this procedure.
	
	* Rewrite cref formatting code to improve performance.	The  
	improvement seems only slight.

1991-03-01 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.108): [no log message]

1991-03-01 01:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (14.9): Fix typo in last change.

1991-02-28 21:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.16): First draft is
	finished.

1991-02-28 20:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.18), list.scm (14.13), process.scm (1.6),
	runtime.pkg (14.91): * New subprocess design requires microcode
	11.63 or later.
	
	* New procedures `make-pipe', `weak-delq!'.
	
	* Procedures for constructing generic I/O ports and for
	manipulating   I/O channels are now exported to the global
	environment.
	
	* Automatically close input channels when EOF is encountered.

1991-02-28 20:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.6): Use `cref/generate-constructors'
	instead of `cref/generate-all'.

1991-02-28 19:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: extern.h (9.40), hooks.c (9.42), interp.c (9.61),
	osio.h (1.6), osproc.h (1.2), osscheme.c (1.2), osscheme.h (1.3),
	prims.h (9.38), prosfile.c (1.2), prosio.c (1.4), prosproc.c (1.3),
	utabmd.scm (9.55), utils.c (9.49), ux.c (1.7), ux.h (1.21),
	uxctty.c (1.7), uxio.c (1.9), uxproc.c (1.5), uxproc.h (1.2),
	uxsig.c (1.7), version.h (11.63): * New primitive `make-pipe'.
	
	* Redesign of subprocess primitives.  New primitives are
	lower-level,   permitting more flexibility, and support job control
	properly.

1991-02-28 19:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.15): Add text describing
	fixnums and calls to the interface.

1991-02-28 17:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.14): Add text describing
	hairy invocation rules.

1991-02-28 13:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.13): First cut at RTL
	statement rules.

1991-02-27 18:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.12): Documentation for
	predicate rules.

1991-02-27 16:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.11): New delta.

1991-02-27 10:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.10): New delta.

1991-02-26 16:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.52): "bchpur.c" must include "zones.h".

1991-02-26 16:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.58): Fix broken function definitions.

1991-02-25 23:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.9): Yet more text.

1991-02-25 22:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.8): Yet more text

1991-02-23 21:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.7): Yet more text.

1991-02-23 20:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.57), bchpur.c (9.51), boot.c (9.67),
	default.h (9.36), fasload.c (9.60), memmag.c (9.45), purify.c
	(9.45), purutl.c (9.40), stack.h (9.29), uxtrap.c (1.8): Put a
	little patch in uxtrap.c and the memory management to detect cases
	when the stack has overflowed and constant space has been
	overwritten.
	
	Ansify various memory management files.

1991-02-23 16:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.6): Initial description
	of all assembler files.

1991-02-23 10:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.5): Some more text.

1991-02-23 00:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.4): Yet more text.

1991-02-22 17:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.3): Yet more text.

1991-02-22 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.28): Initialize the condition system a
	little later.  It depends on the lambda abstraction being
	initialized.

1991-02-22 16:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.20): Fix typo in error name.  This would
	have been caught by type-checking in compiled code.

1991-02-22 16:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.19): Fix typo in error name.  This would
	have been caught by type-checking in compiled code.

1991-02-21 16:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.2): Some more text...

1991-02-21 11:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bignum.c (9.34): bignum_trim did not produce 0-length
	bignums even when there were no bits set.

1991-02-20 18:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/porting.guide (1.1): Initial revision

1991-02-19 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.27), option.scm (14.10), runtime.pkg
	(14.90), version.scm (14.107): Change subprocess code to be a
	loadable option.

1991-02-16 12:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* cref/cref.sf (1.3): Allow cref to generate itself correctly the
	first time by using the triv.* files.

1991-02-16 02:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fixnum.c (9.33), version.h (11.62): Fix bug in
	fixnum-lsh.  It was behaving like an arithmetic shift rather than a
	logical shift.

1991-02-16 00:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/rulfix.scm (1.5): Improve fixnum->object to
	use a temporary register if necessary.	This allows it to be
	targetted to the stack or heap.

1991-02-15 20:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/rulfix.scm (1.4): Fix bug by which
	fixnum-lsh was actually fixnum-ash (arithmetic shift rather than
	logical).

1991-02-15 15:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.32): Changes for new error system in
	runtime 14.106.

1991-02-15 13:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/make.scm-68040 (4.79),
	mips/make.scm-big (4.79), mips/make.scm-little (4.79),
	spectrum/make.scm (4.79): Changes for new error system in runtime
	14.106.

1991-02-15 13:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.49), edwin/basic.scm (1.106),
	edwin/bufwin.scm (1.287), edwin/comman.scm (1.64), edwin/comred.scm
	(1.84), edwin/comwin.scm (1.140), edwin/artdebug.scm (1.4),
	edwin/editor.scm (1.200), edwin/edwin.pkg (1.23), edwin/evlcom.scm
	(1.19), edwin/filcom.scm (1.144), edwin/fileio.scm (1.92),
	edwin/info.scm (1.96), edwin/iserch.scm (1.9), edwin/make.scm
	(3.25), edwin/paths.scm (1.8), runtime/rgxcmp.scm (1.104),
	edwin/utils.scm (1.21), compiler/etc/stackp.scm (1.6),
	compiler/etc/xcbfdir.scm (1.6), compiler/base/toplev.scm (4.31):
	Changes for new error system in runtime 14.106.

1991-02-15 13:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unsyn.scm (14.11), unxprm.scm (1.11), version.scm
	(14.106), where.scm (14.9), x11graph.scm (1.7), xeval.scm (1.3):
	Changes to error system:
	
	* Complete redesign of the error system.  Conditions now have named
	  fields like records, and an interface similar to that of the
	record	 abstraction.  Condition types have single inheritance
	instead of   multiple inheritance; the latter can be implemented
	with some small   effort should someone need it.  Significantly
	richer taxonomy of   condition types.  New "restart" mechanism like
	that of Common Lisp.	Hooks for overriding default handlers for
	errors and warnings.
	
	* The special forms `error' and `bkpt' have been changed to be	
	procedures.
	
	* `error:datum-out-of-range' no longer accepts a second argument;
	use   new procedure `error:bad-range-argument' instead.
	
	* `error:illegal-datum' has been eliminated; use either  
	`error:wrong-type-datum' or `error:wrong-type-argument' instead.
	
	Changes to REPL:
	
	* ";Value" message produced by REPL now prints out a hash number if
	  the value is a pointer object.
	
	* New procedure `ve' starts a sub-REPL in a given environment.
	
	* New procedure `restart' selects a restart option and invokes it. 
	If   invoked with no arguments, it presents a list of options and
	prompts   for the user to select one by number; otherwise it is
	called with   one argument, an option number.
	
	* The variable `cmdl-interrupt/abort-top-level/reset?' has been  
	eliminated.
	
	* Eliminated "proceed points" and "proceed continuations".  These
	are   replaced by new "restarts" mechanism.
	
	* `cmdl-message/active' now passes the current cmdl object as an  
	argument to the actor procedure.
	
	* The procedures `abort-to-nearest-driver',  
	`abort-to-previous-driver', and `abort-to-top-level-driver' have  
	been eliminated.  The procedures `abort->nearest',  
	`abort->previous', and `abort->top-level' have been generalized to 
	 accept a string as an argument; use these in place of the
	eliminated   procedures.
	
	Other changes:
	
	* Debugger has a new command, K, that chooses a restart option and 
	 invokes it.
	
	* New predicates `interned-symbol?' and `uninterned-symbol?'.

1991-02-15 13:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.8), arith.scm (1.17), contin.scm (14.5),
	dbgcmd.scm (14.11), debug.scm (14.24), dragon4.scm (1.6), emacs.scm
	(14.7), error.scm (14.11), gc.scm (14.6), global.scm (14.21),
	hashtb.scm (1.2), infstr.scm (1.4), infutl.scm (1.20), input.scm
	(14.12), intrpt.scm (14.6), io.scm (14.17), lambda.scm (14.8),
	load.scm (14.20), make.scm (14.26), numpar.scm (14.7), pathnm.scm
	(14.11), process.scm (1.5), record.scm (1.8), rep.scm (14.17),
	runtime.pkg (14.89), scode.scm (14.11), scomb.scm (14.10),
	syntax.scm (14.14), uerror.scm (14.18): Changes to error system:
	
	* Complete redesign of the error system.  Conditions now have named
	  fields like records, and an interface similar to that of the
	record	 abstraction.  Condition types have single inheritance
	instead of   multiple inheritance; the latter can be implemented
	with some small   effort should someone need it.  Significantly
	richer taxonomy of   condition types.  New "restart" mechanism like
	that of Common Lisp.	Hooks for overriding default handlers for
	errors and warnings.
	
	* The special forms `error' and `bkpt' have been changed to be	
	procedures.
	
	* `error:datum-out-of-range' no longer accepts a second argument;
	use   new procedure `error:bad-range-argument' instead.
	
	* `error:illegal-datum' has been eliminated; use either  
	`error:wrong-type-datum' or `error:wrong-type-argument' instead.
	
	Changes to REPL:
	
	* ";Value" message produced by REPL now prints out a hash number if
	  the value is a pointer object.
	
	* New procedure `ve' starts a sub-REPL in a given environment.
	
	* New procedure `restart' selects a restart option and invokes it. 
	If   invoked with no arguments, it presents a list of options and
	prompts   for the user to select one by number; otherwise it is
	called with   one argument, an option number.
	
	* The variable `cmdl-interrupt/abort-top-level/reset?' has been  
	eliminated.
	
	* Eliminated "proceed points" and "proceed continuations".  These
	are   replaced by new "restarts" mechanism.
	
	* `cmdl-message/active' now passes the current cmdl object as an  
	argument to the actor procedure.
	
	* The procedures `abort-to-nearest-driver',  
	`abort-to-previous-driver', and `abort-to-top-level-driver' have  
	been eliminated.  The procedures `abort->nearest',  
	`abort->previous', and `abort->top-level' have been generalized to 
	 accept a string as an argument; use these in place of the
	eliminated   procedures.
	
	Other changes:
	
	* Debugger has a new command, K, that chooses a restart option and 
	 invokes it.
	
	* New predicates `interned-symbol?' and `uninterned-symbol?'.

1991-02-15 11:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.24): Continuations that are closed
	in IC environments save their closing environment on the stack. 
	The next-continuation-offset must account for that environment;
	previously it wasn't.

1991-02-14 20:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/make.scm (4.78): Update to match 68k
	version after CPH's fix of top-level "illegal return address" bug.

1991-02-14 19:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/vax.m4 (1.1), cmpintmd/vax.h (1.1): Initial
	revision

1991-02-14 19:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: rulfix.scm (1.3), assmd.scm (4.6),
	compiler.cbf (1.4), compiler.pkg (1.6), compiler.sf (1.3),
	dassm1.scm (4.5), dassm2.scm (4.10), decls.scm (4.5), dsyn.scm
	(1.7), instr3.scm (1.9), insutl.scm (4.3), lapgen.scm (4.10),
	machin.scm (4.7), make.scm (4.46), rules1.scm (4.7), rules2.scm
	(4.4), rules3.scm (4.8), rules4.scm (4.3): Update for 7.1 port.

1991-02-14 19:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/rulrew.scm (1.1): Initial revision

1991-02-14 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/asm.scm (1.2): Eliminate syntax phase for assembly
	since assembler now directly accepts LAP.

1991-02-14 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: spectrum/make.scm (4.77), mips/make.scm-big
	(4.75), mips/make.scm-little (4.75), bobcat/make.scm-68040 (4.78):
	Minor bug fixes.

1991-02-14 13:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/crstop.scm (1.8): Change default extensions for the
	cross compiler to avoid "double extensions" that confuse shells.

1991-02-14 13:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.19): Fix with-register-copy-alias!
	and register-copy-if-available to handle machine registers as
	`source' as well as pseudo registers.  This is required by the new,
	smaller, rule set.

1991-02-11 23:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.28): Eliminate
	dlink-procedure-header, no longer necessary after
	entry:compiler-interrupt-dlink was written.

1991-02-05 22:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/crsend.scm (1.5): Change default extensions to make
	shell-level tools easier to write.

1991-02-05 21:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/crstop.scm (1.7): Change default extensions to make
	shell-level tools easier to write.

1991-02-05 21:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/xcbfdir.scm (1.5): Fix bug in last patch.

1991-02-05 21:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/xcbfdir.scm (1.4): Change extension for
	cross-compiler so that shell tools will work more easily.

1991-02-04 22:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.23): Fix typo: gcd-fixnum
	appeared as gc-fixnum.

1991-01-31 02:08  Hal Abelson <hal@zurich.ai.mit.edu>

	* runtime/equals.scm (14.3): Fix bug in eqv? and equal? by which =
	numbers represented differently (eg. fixnum vs. bignum) were deemed
	unequal.

1991-01-31 02:00  Hal Abelson <hal@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.47): Fix off-by-one error in
	bit-string->unsigned-integer.  If the bit-string has exactly
	FIXNUM_LENGTH bits, it still falls in the fixnum range.

1991-01-30 17:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.39): Fossil removal.

1991-01-30 17:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.38): Fossil removal.

1991-01-28 18:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.27): Eliminate some unused
	incorrect code.

1991-01-25 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.88), uerror.scm (14.17), utabs.scm
	(14.5), version.scm (14.105): Make changes to handle new
	system-call errors that are generated by microcode version 11.61. 
	This runtime system will continue to work with older microcode
	versions.

1991-01-25 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.10): Define `make-directory'.

1991-01-24 06:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: gpio.c (1.8), prosenv.c (1.4), pruxfs.c (9.44),
	utabmd.scm (9.54), utils.c (9.48), ux.c (1.6), ux.h (1.20), uxenv.c
	(1.3), uxfile.c (1.4), uxfs.c (1.3), uxio.c (1.8), uxproc.c (1.4),
	uxsock.c (1.3), uxterm.c (1.11), uxtop.c (1.8), version.h (11.61):
	Implement mechanism to pass system-call name and error code to
	Scheme error handler when system-call errors occur.

1991-01-24 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosio.c (1.3): Flush obsolete file-output primitives.

1991-01-24 00:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.19): Implement mechanism to pass system-call
	name and error code to Scheme error handler when system-call errors
	occur.

1991-01-23 23:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/errors.h (9.37): Fix typo in comment.

1991-01-23 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.h (1.18), ostop.h (1.3): Implement mechanism to
	pass system-call name and error code to Scheme error handler when
	system-call errors occur.

1991-01-23 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fixobj.h (9.29): Add slots for system call names and
	error codes.

1991-01-23 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/errors.h (9.36): Add system-call error.

1991-01-23 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/types.h (9.32): Add record type.

1991-01-23 16:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.34): Fix a bug in
	statement rule for
	
	  (ASSIGN (OFFSET (REGISTER (? address)) (? offset))
		  (BYTE-OFFSET-ADDRESS (OFFSET (REGISTER (? address)) (?
	offset))
				       (? n)))

1991-01-23 13:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.8): Fix bad reference.

1991-01-23 13:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.7): Fix bug.  First entry
	for STORE_EXECUTE_CACHE_CODE should have been an entry for
	STORE_EXECUTE_CACHE_ADDRESS.

1991-01-18 23:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: format.scm (1.2), logmer.scm (1.2), make.scm (1.2),
	object.scm (1.2), rcs.pkg (1.2), rcs.sf (1.2): Changes for new
	parser, which corresponds to RCS 5.5.

1991-01-18 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/nparse.scm (1.1): Initial revision

1991-01-18 14:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* rcs/: format.scm (1.1), logmer.scm (1.1), make.scm (1.1),
	object.scm (1.1), scheme.scm (1.1), mklogs.scm (1.1), rcs.pkg
	(1.1), rcs.sf (1.1): Initial revision

1991-01-17 20:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: generic.c (9.35), version.h (11.60): Fix bug in
	INDIRECT_TEST_1 and INDIRECT_TEST_2 by adding a use of
	BOOLEAN_TO_OBJECT.

1991-01-16 16:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpaux.txt (1.1): Initial revision

1991-01-16 11:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.6): Document new macros and
	make some minor changes.

1991-01-15 19:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.h (1.17), uxtrap.c (1.7), oscond.h (1.4): Add
	conditionalization to distinguish versions 1.0 and 2.0 of NeXT OS.

1991-01-15 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.59.1.1): Fixes to terminal interface for
	NeXT.

1991-01-15 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.3): Change to use `tty-x-size' and
	`tty-y-size' instead of termcap's values for these numbers.  This
	is because termcap uses static data, while the primitives use
	dynamic data if available.

1991-01-15 15:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtty.c (1.5): Add simple support for TIOCGWINSZ.

1991-01-15 08:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/screen.scm (1.86): Flush two unused slots in the `screen'
	data structure.

1991-01-14 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffrm.scm (1.38): When splitting a window, don't try to
	update the `truncate-lines' slot unless the window's buffer has
	been set.

1991-01-11 17:08  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.15): Added support for RECORD type
	structures (i.e. structures with records as their underlying type).
	In some sense of course this is redundant since records and untyped
	structures are both tagged vectors, but this allows you to use
	DEFINE-STRUCTURE to generate the constructor, accessor, settor and
	predicate definitions while also allowing you to interrogate the
	record for those procedures.

1991-01-08 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.15): Disable signalling NaNs on
	68881.

1991-01-07 18:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.c (1.5), ux.h (1.16), uxctty.c (1.6), uxterm.c
	(1.10), uxterm.h (1.3), uxutil.c (1.2): Change terminal-interface
	code to handle ^S/^Q (and several related problems) on Ultrix and
	BSD.

1991-01-05 18:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.9): In nonbuffered input mode, disable ^S
	and ^V (and all other special characters) on BSD systems.

1990-12-29 21:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.6): Patch around NeXT's missing "etext".

1990-12-29 17:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bignum.c (9.33): Fix bugs in standalone code.

1990-12-29 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.15): Update conditionalizations for NeXT.

1990-12-27 20:34  Hal Abelson <hal@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.21): Fix fencepost error in hardware
	traps.

1990-12-10 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/posixtyp.h (1.3): Add changes for SunOS 4.1.

1990-12-10 14:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.59): Change release string to indicate
	beta test.

1990-11-30 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: hppacach.h (1.3), hppacach.c (1.2), version.h
	(11.58), cmpintmd/hppa.h (1.19): Change HP-PA caching mechanism to
	use a single database file, stored in the library directory, that
	contains entries indexed by model type.  The `hppacache' program
	now updates that database by adding new entries to it.	The
	filename of the database is given as an explicit argument.

1990-11-30 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: option.h (1.2), option.c (1.8): Make the
	`search_path_for_file' procedure be non-static.

1990-11-29 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.18): Don't need to define C_SCHEME.

1990-11-29 17:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tterm.scm (1.2): Fix thinko in `console-scroll-lines-up'.

1990-11-28 21:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/lapgen.scm (1.3): Eliminate use of
	syntactic keyword as variable name.

1990-11-28 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.54): Pre-ANSI compilers don't handle
	automatic arrays declared as [].

1990-11-28 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.53): Pre-ANSI compilers don't handle
	automatic arrays declared as [].

1990-11-28 18:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/obstack.h (1.3): Work around HP-PA compiler bug: can't
	have conditional expression with one arm of type void, even if
	entire expression is in effect position.

1990-11-28 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/dmpwrld.c (9.36): Don't define `CANNOT_UNEXEC' for
	spectrum.

1990-11-28 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/: make.scm-big (4.74), make.scm-little
	(4.74): [no log message]

1990-11-28 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/rules3.scm (1.4): Eliminate several
	misplaced commas.

1990-11-28 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/instr2a.scm (1.2): Fix bug in definition
	of bgezal and bltzal instructions.

1990-11-28 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/mips/lapgen.scm (1.2): Fix typo in `fp-copy'.

1990-11-28 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/dmpwrld.c (9.35): Fix typo in symbol name.

1990-11-28 15:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/os.h (1.2): Don't include "posixtype.h" unless
	"oscond.h" is included first.

1990-11-28 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: obstack.c (1.2), obstack.h (1.2): Various changes
	from FSF.

1990-11-28 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.7): Add extra include file required by
	Ultrix; technically HP-UX requires this also, but HP-UX doesn't get
	upset if it isn't given.

1990-11-27 17:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.6): Fix bug in library path parser.  Also
	add code to transform relative library directories into absolute
	form.

1990-11-27 14:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.57): [no log message]

1990-11-27 14:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.59): Adjust comment for i386.

1990-11-27 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/scheme.h (9.34): Eliminate illegal `#include
	SITE_INCLUDE_FILE'.

1990-11-27 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: lookup.c (9.45), object.h (9.36), interp.c (9.60):
	Fix illegal `#if'.

1990-11-26 11:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.53): Add UNKNOWN-PRIMITIVE-CONTINUATION
	error, and PRIMITIVE-CONTINUE return code.

1990-11-21 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.94): Fix bug in code that initialize the
	TUTORIAL file.

1990-11-21 18:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.143): Catch file errors when loading "ffi"
	database.

1990-11-21 17:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.43): Ansi-fy all procedure headers.

1990-11-21 16:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ppband.c (9.42): Fix fixnum printing.
	
	Fix NMV data printing.
	
	Make NMV data print as characters as well as in hex.

1990-11-21 02:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.47), ppband.c (9.41), psbtobin.c
	(9.42), bchdmp.c (9.52), dump.c (9.32), errors.h (9.35), fasdump.c
	(9.49), fasload.c (9.59), interp.c (9.59), load.c (9.30), prosfs.c
	(1.2), returns.h (9.39), version.h (11.56): Fasload and Fasdump now
	handle channels as well as files.
	
	A primitive suspension mechanism has been implemented (prmcon.[ch])
	and is used by fasload to continue if a GC is needed, rather than
	aborting and starting from scratch.

1990-11-21 02:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: prmcon.c (1.1), prmcon.h (1.1): Initial revision

1990-11-20 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.6): Change interactive keyboard interrupt's
	help message to advertise option characters that are consistent
	with GNU Emacs interface.

1990-11-19 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/lvalue.scm (4.19), base/proced.scm (4.17),
	fgopt/delint.scm (1.3), fgopt/order.scm (4.15),
	machines/bobcat/make.scm-68040 (4.77): Fix bug:
	`delete-integrated-parameters' was deleting parameter's in a
	procedure's interface only when the
	`procedure-interface-optimizible?' said that it was OK to do so. 
	However, `lvalue-integrated?', used in many places, would return #t
	for variables in that interface, independent of
	`procedure-interface-optimizible?'.  The fix gets rid of
	`procedure-interface-optimizible?' and alters `lvalue-integrated?'
	to take the procedure interface restrictions into account.

1990-11-19 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.104): [no log message]

1990-11-19 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.19): Various formatting changes.

1990-11-19 14:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.9): Don't use `system-library-pathname'. 
	Instead use `system-library-directory-pathname' to find the options
	directory, and then load the option file from there.

1990-11-16 16:20  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/ppband.c (9.40): - Inhibit checksums in load.c - Merge
	with OS/2 microcode.  - ANSIfy function headers.

1990-11-16 06:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/lincom.scm (1.105): `indent-relative' changed to take no
	interactive arguments, since it is always called that way when used
	as value of `indent-line-procedure'.

1990-11-15 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/paths.scm (1.7): Change to use new system-library pathname
	procedures.  Requires runtim 14.103 or later.

1990-11-15 20:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/paths.scm (1.6): Change to use new system-library pathname
	procedures.  Requires runtim 14.103 or later.

1990-11-15 18:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: savres.scm (14.17), pathnm.scm (14.10): Change
	`system-library-pathname' so that it signals an error if it can't
	find the file.

1990-11-15 18:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pathnm.scm (14.9): Change
	`system-library-directory-pathname' so that it signals an error if
	its argument is #F and none of the directories in the library path
	exist.

1990-11-15 18:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.24), edwin/paths.scm (1.5), sicp/studen.scm
	(1.3): Change to use new system-library pathname procedures. 
	Requires runtim 14.103 or later.

1990-11-15 18:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.25), option.scm (14.8), pathnm.scm (14.8),
	runtime.pkg (14.87), savres.scm (14.16), version.scm (14.103): Use
	new primitive `microcode-library-path', if present, to get a
	sequence of library directory names.
	
	Change `system-library-directory-pathname' to search through this
	sequence; also change it to accept an argument which is the name of
	a subdirectory to look for.
	
	New procedure `system-library-pathname' searches for a given file
	in one of the library directories.
	
	`load-option' and `disk-restore' changed to use
	`system-library-pathname'.

1990-11-15 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.55): [no log message]

1990-11-15 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fasload.c (9.58): Change `reload-band-name' to return
	`option_band_file' if no `disk-restore' has been performed since
	Scheme was started.

1990-11-15 18:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.66): Add new primitive
	`microcode-library-path'.

1990-11-15 14:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.19): Permit a compiled-code block's
	debugging-info to be #F.  In that case, assume there is no
	debugging-info available.

1990-11-15 10:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (14.16), runtime.pkg (14.86): Change GE and GST
	to change top-level defaults only if in the top-level REPL. 
	Eliminate VE, VST, %GE, %VE, %GST, %VST, %IN, %OUT.  Change RE to
	clobber the reader history with the thing it is re-evaluating. 
	Change prompt-for-confirmation to print out invalid characters.

1990-11-15 05:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.5): Fix another typo.

1990-11-15 05:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/instr3.scm (1.2): Eliminate use of
	`cond' as variable name.

1990-11-15 04:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (4.76): [no log message]

1990-11-15 04:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxterm.c (1.8): For cooked input, don't turn on ECHO or
	CRMOD unless they were on when Scheme was started.  For cooked
	output, don't turn on OPOST (turn off LLITOUT) unless it was on
	(off) when Scheme was started.

1990-11-15 03:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.5): Disable SIGPIPE.  This can happen under
	a variety of circumstances, and we almost never want Scheme to
	terminate (a possible exception being when it happens on stdout). 
	According to HP-UX documentation, disabling this signal causes the
	system calls that would have generated it to return EPIPE instead,
	which requires no special work for us to handle.

1990-11-14 12:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.37): Gaak!  Fix nasty
	typo.

1990-11-14 12:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.14): Gaak!  Fix nasty typo.

1990-11-14 11:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosterm.c (1.7), pruxsock.c (1.3): Gaak!  Fix nasty
	typo.

1990-11-14 11:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.4): Gaak!  Fix nasty typo.

1990-11-14 10:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/input.scm (1.86): Generate meaningful error if EOF
	encountered in keyboard input port.

1990-11-14 10:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.199), edwin.pkg (1.22): Make `edwin' be an
	alias for `edit'.

1990-11-14 09:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* sicp/: compat.scm (1.2), genenv.scm (1.2), graphics.scm (1.2),
	sbuild.scm (1.2), studen.scm (1.2): Various small cleanups for 7.1
	release.

1990-11-14 09:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/dmpwrld.c (9.34): Eliminate conflicting external
	declaration.

1990-11-14 08:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.65): Add new primitives to save and restore a
	string through a disk-restore.	Change `get-unused-command-line' to
	return the unused arguments on the first call, and #F on subsequent
	calls.

1990-11-14 08:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.3): Fix handling of standard filename
	options.  Must not perform library search on absolute pathnames.

1990-11-14 08:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.102): [no log message]

1990-11-14 08:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.15): Check for unused command-line
	arguments when Scheme starts.

1990-11-14 08:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.16), runtime.pkg (14.85): New operations on
	input-buffer for saving and restoring the contents of the buffer. 
	These are used by the console input port to preserve the buffer's
	contents through a disk-restore.

1990-11-14 08:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.20): Change `fasdump' to return
	`unspecific'.

1990-11-14 06:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.54): [no log message]

1990-11-14 05:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/mul.c (9.30): Use MC68010 instead of MC68020.

1990-11-14 05:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.58): Use DISABLE_HISTORY instead of
	COMPILE_HISTORY.  Use MC68010 instead of MC68020.

1990-11-14 05:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.41), history.h (9.27): Use DISABLE_HISTORY
	instead of COMPILE_HISTORY.

1990-11-14 05:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/option.c (1.2): Fix typo in output format.

1990-11-13 14:21  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.84): Export CLOSE-TCP-SERVER-SOCKET to
	initial environment.

1990-11-13 03:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: option.c (1.1), option.h (1.1): Initial revision

1990-11-13 03:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.56), boot.c (9.64), config.h (9.57),
	default.h (9.35), dmpwrld.c (9.33), extern.h (9.39), hooks.c
	(9.40), hppacach.h (1.2), osscheme.h (1.2), term.c (1.4), ux.h
	(1.14), uxsig.c (1.4), uxtop.c (1.7), uxtrap.c (1.5), uxtty.c
	(1.4), version.h (11.53): * Consolidate command-line option
	processing.  Several new options:   -large, -edwin, -library,
	-option-summary.  Each major option now   has a two-step default:
	first an environment variable is checked,   and if that doesn't
	exist, a built-in default is used.
	
	  The point of these changes is to permit a Scheme executable
	program
	  to have sufficient flexibility that it can be installed at many
	  sites without modification to the built-in defaults.
	
	* Move all option defaults and option specifications to new file  
	"option.c".
	
	* New primitive `get-unused-command-line' returns only that part of
	  the command line that was left unused by the option-processing
	code.
	
	* Rename `parent_process_is_emacs' to `option_emacs_subprocess'.
	
	* Move all specialized exit handling to "term.c".
	
	* Move several macro defaults from "default.h" to the files in
	which	they are referenced.

1990-11-11 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osio.h (1.5), uxfile.c (1.3): Add new channel types
	for character and block devices.

1990-11-11 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.15): Eliminate overlong line.  Change
	iterative algorithm to recursive.

1990-11-11 22:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.14): Add `character-device' and `block-device'
	file types.

1990-11-10 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxctty.c (1.5): Initialize file descriptors of `struct
	terminal_state_recording' variables.

1990-11-09 19:32  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/io.scm (14.13): Fix braino in change making
	INPUT-BUFFER/READ-UNTIL-DELIMITER a linear time algorithm.

1990-11-09 16:31  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/io.scm (14.12): Change INPUT-BUFFER/READ-UNTIL-DELIMITER
	to a linear time algorithm.  Previously was quadratic time when
	more than one buffer-full was read through.

1990-11-09 15:59  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/socket.scm (1.2): Change OPEN-TCP-SERVER-SOCKET to take a
	service name, not a port number.

1990-11-09 05:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (14.11): Fix stupid think-o from last change.

1990-11-09 04:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.7): Fix stupid think-o from last change.

1990-11-09 03:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufinp.scm (1.3), make.scm (3.23): Change peek-char,
	read-char, and read-string operations to return EOF objects when
	they reach the end of the input region.  This is an incompatible
	change required by runtime system version 14.101.

1990-11-09 03:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/socket.scm (1.1): Initial revision

1990-11-09 03:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: input.scm (14.10), io.scm (14.11), make.scm (14.24),
	parse.scm (14.13), process.scm (1.4), runtime.pkg (14.83),
	strnin.scm (14.3), unxprm.scm (1.9), version.scm (14.101): Requires
	microcode 11.52 or later.
	
	* Reimplement subprocess abstraction to match new microcode
	support.
	
	* Implement socket abstraction.
	
	* Create new "generic channel" input and output ports.	These share
	  operations with file and console ports.
	
	* Add `buffer-size' and `set-buffer-size' operations to file and  
	console input ports.
	
	* Add `eof?' operation to file input port.
	
	* Add `channel' operation to file input and output ports.
	
	* Change input and output buffer abstractions to permit a
	buffer-size   of zero.	Input buffer treats this the same as a
	buffer size of one,   since at least one character of buffering is
	needed to implement the   peek-char operation.
	
	* Change the peek-char and read-char input port operations to
	return	 an EOF object at end of file, or #F if no characters are
	available   and the input port is set to non-blocking mode.  This
	is an	incompatible change.
	
	* Change the read-string input port operation to return an EOF
	object	 at end of file.  This is an incompatible change.
	
	* Change the read-string and discard-chars input-port operations to
	  for their input channels into blocking mode.
	
	* Add new channel types: TCP-SERVER-SOCKET and DIRECTORY.
	
	* Change the file-opening code to signal a range error if an
	attempt   is made to open a channel of type DIRECTORY or UNKNOWN.
	
	* Remove error check from `open-pty-master'; the primitive now
	takes	care of this.
	
	* Add new operations on PTY masters: pty-master-kill,
	pty-master-stop,   pty-master-continue, pty-master-interrupt, and
	pty-master-quit.
	
	* Change the input-buffer abstraction to handle non-blocking
	channels   correctly.
	
	* Use new microcode primitive `file-mod-time-indirect' to implement
	  `file-modification-time'.

1990-11-08 06:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.52): Bug fixes and enhancement of socket
	and subprocess code.

1990-11-08 06:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtop.c (1.6): (OS_initialize): Initialize processes
	after initializing signals, otherwise assignment to
	`subprocess_death_hook' is lost.

1990-11-08 06:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxterm.c (1.7), osterm.h (1.5): * (OS_job_control_p):
	New procedure.
	
	* (OS_open_pty_master): Signal error if none available.
	
	* (OS_pty_master_send_signal): Conditionalize use of TIOCSIGSEND on
	  that symbol, not on _HPUX.
	
	* (OS_pty_master_kill, OS_pty_master_stop, OS_pty_master_continue, 
	 OS_pty_master_interrupt, OS_pty_master_quit): New procedures.

1990-11-08 06:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxsock.c (1.2), uxsock.h (1.2): *
	(OS_open_tcp_stream_socket): Change `host' argument to be `char *',
	  and don't assume that it is the same length as a `long'.
	
	* (OS_get_host_by_name): Change interface to return `char **', and 
	 eliminate `struct host_addresses'.  Assume that all addresses are 
	 `sizeof (struct in_addr)' in length.
	
	* (OS_open_server_socket, OS_server_connection_accept): New
	procedures   support server sockets.

1990-11-08 06:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxproc.c (1.3): * (OS_make_subprocess): Permit 0 as
	environment pointer argument,	meaning use value of `environ'. 
	Fix a couple of bugs in the child   process initialization
	sequence.
	
	* (OS_process_stop, OS_process_continue): Don't check to see if job
	  control is available -- just do it.

1990-11-08 06:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ux.h (1.13): Support for server sockets.

1990-11-08 06:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.6): * (UX_channel_close_all): Don't signal
	errors -- this is run when   there is no runtime system to field
	them, and in any case they can	 be safely ignored here.
	
	* (OS_channel_close_on_abort): New utility procedure.

1990-11-08 06:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfile.c (1.2): * (fd_channel_type): Don't signal error
	if the system call fails, just	 return unknown type.  Add case for
	directory type.
	
	* (OS_open_load_file, OS_open_dump_file): Permit only files and
	FIFOs.

1990-11-08 06:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxsock.c (1.2): * (host-address-length): New
	primitive specifies the size of a host	 name in characters.
	
	* (get-host-by-name): Changes to match `OS_get_host_by_name'.
	
	* (open-tcp-server-socket, tcp-server-connection-accept): New  
	primitives permit Scheme to act as a TCP server.

1990-11-08 06:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.43): (file-mod-time,
	file-mod-time-indirect): New primitives to obtain the modification
	time of a file.

1990-11-08 06:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosterm.c (1.6): * (os-job-control?): New primitive
	tells the runtime system whether or   not the operating system
	supports job control.  This is needed when   hacking subprocesses.
	
	* (open-pty-master): Close the channel if allocation forces GC.
	
	* (pty-master-kill, pty-master-stop, pty-master-continue,  
	pty-master-interrupt, pty-master-quit): New primitives to send	
	standard signals down a PTY master.

1990-11-08 06:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosproc.c (1.2): * (make-subprocess): Now accepts #F
	as third arg, meaning	give Scheme's process environment to the
	subprocess.
	
	* (scheme-environment): New primitive returns Scheme's process	
	environment in a form suitable for passing to `make-subprocess'.
	
	* (convert_string_vector): Fix fencepost error.

1990-11-08 06:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/osio.h (1.4): (enum channel_type): New types for server
	sockets and directories.

1990-11-05 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxctty.c (1.4): Fix typo from last change.

1990-11-05 06:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osterm.h (1.4), ostty.h (1.2), prosterm.c (1.5),
	prostty.c (1.2), sysprim.c (9.35), uxctty.c (1.3), uxterm.c (1.6),
	uxterm.h (1.2), uxtop.c (1.5), uxtty.c (1.3), version.h (11.51): *
	Eliminate obsolete TTY I/O primitives.	These have not been used
	for   several months now.
	
	* If stdin or stdout is a terminal, save its state when entering  
	Scheme, and restore it when leaving, as is done with the control  
	terminal.  Ignore any attempts to change the state if Scheme is not
	  in the foreground.  This code helps prevent buggy Scheme programs
	  from screwing up the user's terminal.
	
	* On machines with TERMIOS and BSD_JOB_CONTROL, such as HP-UX,
	alter	VSUSPC and t_suspc together.  Altering one and not the
	other can   cause the change to be lost.

1990-11-01 23:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.22): Requires microcode 11.50 and runtime
	14.100.
	
	* Implementation of update optimizer, and direct use of termcap
	rather	 than the buggy curses.
	
	* Extensive rewrite of display update code.  New display update  
	scrolls lines in some cases, and is tuned to offset the added cost 
	 of running the update optimizer.
	
	* New display update event-tracing facility for debugging.
	
	* If the last line of the buffer is empty, and the previous line is
	  completely visible, the modeline says that the bottom of the
	buffer	 is visible.
	
	* Editor variables can have value validity tests, which are applied
	  whenever the variable's value is altered.  If the test fails, an 
	 error is signalled, so that user code can depend on the variable's
	  contents satisfying the validity test.
	
	* `(buffer-point (current-buffer))' now equivalent to  
	`(current-point)'.
	
	* `window-redraw!' no longer takes a second argument.  It's new  
	meaning is to force the window to be redrawn from scratch, without 
	 affecting the window starting point or cursor position.
	
	* Removed procedures:	window-end-index       
	window-redraw-preserving-point!
	
	* Changed `window-start-index' to `window-start-mark'.
	
	* Change terminal state control to use new I/O port operations that
	  extract channels, and perform the terminal controls directly on  
	those channels.
	
	* Internal flag `debug-internal-errors?' facilitates debugging
	Edwin	if set true.  Normally this is false.
	
	* When first starting the editor, the default behavior is to try to
	  use Scheme's controlling terminal, and if that isn't available,
	to   use X.  If Scheme is started under Emacs, it has no
	controlling   terminal, and therefore it will use X.

1990-11-01 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: termcap.scm (1.1), tterm.scm (1.1): Initial revision

1990-11-01 22:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.138), buffrm.scm (1.37), bufwfs.scm (1.9),
	bufwin.scm (1.286), bufwiu.scm (1.13), bufwmc.scm (1.8), comman.scm
	(1.63), comwin.scm (1.139), debuge.scm (1.40), decls.scm (1.15),
	display.scm (1.3), ed-ffi.scm (1.5), editor.scm (1.198), edtfrm.scm
	(1.83), edtstr.scm (1.12), edwin.ldr (1.11), edwin.pkg (1.21),
	edwin.sf (1.8), hlpcom.scm (1.93), image.scm (1.126), modlin.scm
	(1.5), modwin.scm (1.35), rename.scm (1.4), screen.scm (1.85),
	utlwin.scm (1.55), wincom.scm (1.99), window.scm (1.152),
	winren.scm (1.3), xterm.scm (1.13): Requires microcode 11.50 and
	runtime 14.100.
	
	* Implementation of update optimizer, and direct use of termcap
	rather	 than the buggy curses.
	
	* Extensive rewrite of display update code.  New display update  
	scrolls lines in some cases, and is tuned to offset the added cost 
	 of running the update optimizer.
	
	* New display update event-tracing facility for debugging.
	
	* If the last line of the buffer is empty, and the previous line is
	  completely visible, the modeline says that the bottom of the
	buffer	 is visible.
	
	* Editor variables can have value validity tests, which are applied
	  whenever the variable's value is altered.  If the test fails, an 
	 error is signalled, so that user code can depend on the variable's
	  contents satisfying the validity test.
	
	* `(buffer-point (current-buffer))' now equivalent to  
	`(current-point)'.
	
	* `window-redraw!' no longer takes a second argument.  It's new  
	meaning is to force the window to be redrawn from scratch, without 
	 affecting the window starting point or cursor position.
	
	* Removed procedures:	window-end-index       
	window-redraw-preserving-point!
	
	* Changed `window-start-index' to `window-start-mark'.
	
	* Change terminal state control to use new I/O port operations that
	  extract channels, and perform the terminal controls directly on  
	those channels.
	
	* Internal flag `debug-internal-errors?' facilitates debugging
	Edwin	if set true.  Normally this is false.
	
	* When first starting the editor, the default behavior is to try to
	  use Scheme's controlling terminal, and if that isn't available,
	to   use X.  If Scheme is started under Emacs, it has no
	controlling   terminal, and therefore it will use X.

1990-11-01 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.72): Tuning.  Fix bug in mark comparison
	operations.  Add operations to get display text limits.

1990-11-01 22:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: motion.scm (1.82), search.scm (1.147): Tuning.

1990-11-01 22:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kmacro.scm (1.32): Use the `recenter' command rather than
	the procedure `window-redraw!'.

1990-11-01 21:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/clscon.scm (1.4): Don't warn about redefining class if the
	new definition appears to be the same as the original.

1990-11-01 21:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgcmd.scm (14.10), input.scm (14.9), io.scm (14.10),
	output.scm (14.8), rep.scm (14.15), runtime.pkg (14.82),
	version.scm (14.100): Requires microcode version 11.50 or later.
	
	Many changes to provide for smooth control of terminal state:
	
	* Procedures `make-cmdl' and `push-cmdl' each take additional
	argument   that specifies how to spawn a child CMDL object -- a
	good default   for this argument is `make-cmdl'.  `make-cmdl'
	should not be used   except by this "spawning" operation -- always
	use `(cmdl/spawn-child	 cmdl)' to do that.  Command loops should
	be extended to have generic   operations for reading input,
	evaluating, writing results,   prompting, etc.	This would simplify
	switching between the editor   and user code.
	
	* Command loops now temporarily switch input and output modes of  
	terminals to appropriate values when doing input or output.  Thus  
	REP loops and the debugger need not worry about what state the	
	terminal is in -- the user can change it arbitrarily.
	
	* New procedures `input-port/channel' and `output-port/channel'
	return	 a port's underlying channel if known, else #F.  This is
	not yet   completely implemented, but since it is only used for
	terminals it   is OK for now.
	
	* New procedures `terminal-get-state' and `terminal-set-state' can
	be   used to save and restore a terminal's state.
	
	* Renamed procedures:	terminal-buffered?     
	terminal-cooked-input?	terminal-buffered      
	terminal-cooked-input	terminal-nonbuffered	terminal-raw-input
	
	* Eliminated procedure `make-repl'.  Most instances of this should 
	 have been `push-repl' instead.
	
	* Eliminated procedures `input-port/immediate-mode' and  
	`input-port/normal-mode'.  Eliminated output-port operations  
	`raw-mode' and `cooked-mode'.  Eliminated port operation  
	`baud-rate'.
	
	* Eliminated ill-advised `fresh-line' operation on output ports. 
	This   should be supplied directly by each type of port.

1990-11-01 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prosterm.c (1.4): Fix typo.

1990-10-31 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osterm.h (1.3), prosterm.c (1.3), term.c (1.3), ux.c
	(1.4), ux.h (1.12), uxctty.c (1.2), uxterm.c (1.5), version.h
	(11.50): * New primitives `terminal-get-state' and
	`terminal-set-state' allow   Scheme programs to get an object
	representing a terminal's state   structure, and to restore the
	terminal's state from such an object.
	
	* When Scheme is terminated, restore the control terminal state.   
	Previously this was done only when suspending Scheme.
	
	* On machines that have it, disable `t_dsuspc' (the delayed suspend
	  character).  Save this and any other TIOCGLTC state in the
	terminal   state structure.  Previously POSIX machines ignored this
	state even   if it was present.

1990-10-25 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.13): When scrolling part of an X terminal
	window, don't redraw the cursor unless it is within the part of the
	window that is being overwritten.

1990-10-24 11:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.8): Provide expanders for `values' and
	`with-values' that avoid expensive rest arguments and calls to
	eval.

1990-10-19 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.7): * Expand CHAR=? to EQ?.
	
	* Don't signal errors during expansion -- let them happen later.

1990-10-19 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.6): * Expand CHAR=? to EQ?.
	
	* Don't signal errors during expansion -- let them happen later.

1990-10-16 23:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/load.scm (14.18): Provide load/loading? flag, true while
	loading, false otherwise, and load/push-hook! to add a hook to
	execute after loading the current file.

1990-10-16 23:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.81): Export load/loading? and
	load/push-hook! from (runtime load).

1990-10-16 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: gconst.scm (4.9), make.scm (4.15), usiexp.scm (4.5): Provide
	expansions for fixnum comparison operators:
	
	    (FIX:= X Y)   --->	 (EQ? X Y)
	    (FIX:ZERO? X) --->	 (EQ? X 0)
	    (FIX:<= X Y)  --->	 (NOT (FIX:> X Y))
	    (FIX:>= X Y)  --->	 (NOT (FIX:< X Y))

1990-10-16 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.9), record.scm (1.7), runtime.pkg (14.80),
	version.scm (14.99): This runtime requires microcode 11.49 or
	later.
	
	* Take advantage of new primitives for terminals by adding
	operations   to console input and output that use them.
	
	* Define new arithmetic operations:
	
	    FIX:<=
	    FIX:>=
	    INT:<=
	    INT:>=
	
	* Change record package so that record types do not contain  
	procedures.  This is needed to permit records and record types to
	be   fasdumped.

1990-10-16 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osterm.h (1.2), prosterm.c (1.2), ux.c (1.3), ux.h
	(1.11), uxterm.c (1.4), version.h (11.49), x11term.c (1.12): *
	Flush curses support, add new primitives for termcap and terminfo.
	
	* Add new primitives to control terminals:
	
	    TERMINAL-GET-ISPEED
	    TERMINAL-GET-OSPEED
	    BAUD-INDEX->RATE
	    BAUD-RATE->INDEX
	    TERMINAL-COOKED-OUTPUT?
	    TERMINAL-COOKED-OUTPUT
	    TERMINAL-RAW-OUTPUT
	
	* Change X line scrolling so that it does not clear the region that
	  the lines are being scrolled out of.	The update optimizer will
	take   care of this if it needs to.

1990-10-16 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/tterm.c (1.1): Initial revision

1990-10-10 02:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.12): Fix parsing of octal escape sequences
	in strings.

1990-10-10 02:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.11): Fix parsing of octal escape sequences
	in strings.

1990-10-09 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: termcap.c (1.1), terminfo.c (1.1), tparam.c (1.1):
	Initial revision

1990-10-09 22:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/xcbfdir.scm (1.3): Add CPH's changes to check the
	date/time of the last compilation, and avoid if unnecessary.

1990-10-09 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwfs.scm (1.8), decls.scm (1.14), display.scm (1.2),
	ed-ffi.scm (1.4), editor.scm (1.197), edtstr.scm (1.11), edwin.ldr
	(1.10), edwin.pkg (1.20), filcom.scm (1.142), modlin.scm (1.4),
	screen.scm (1.84), wincom.scm (1.98), xterm.scm (1.12): * The
	"-in-new-screen" commands have been replaced with   "-other-screen"
	commands.  This is more analogous to the   "-other-window"
	commands.
	
	* New editor variable `use-multiple-screens', if set true, causes  
	various window commands to use multiple screens instead of multiple
	  windows.  Affected commands include C-x o, C-M-v, C-x 4, and	
	commands that pop-up buffers.  This needs more work but is an  
	interesting first cut.
	
	* With multiple X screens, the selected screen is distinguished by 
	 having a cursor -- a screen's cursor is erased when it is  
	deselected.  This is desirable because it is no longer the case
	that   the selected screen and the focus screen are always the
	same.
	
	* Modeline formats have been extended to allow procedures as
	elements.    Such a procedure is called with the modeline's window
	as an	 argument, and is expected to produce another
	modeline-format element    which is used in its place.
	
	* Selecting a window in a screen other than the selected screen
	will   also select that screen. 
	
	* New procedure `other-screen' will choose a different screen if
	one   is available.
	
	* New screen operations `screen-scroll-lines-down!' and  
	`screen-scroll-lines-up!' return a flag saying whether they  
	performed the scrolling.  Redisplay code tries to use them when it 
	 scrolls, and repaints if they don't work.  Currently these  
	operations are implemented for X screens but not for curses.
	
	* The `screen-write-substrings!' operation is now written in terms
	of   the `screen-write-substring!' operation, so that it need not
	be   implemented separately for each screen abstraction.
	
	* The display-type abstraction has been redesigned so that it has
	no   internal state -- the current display type is now part of the
	editor	 structure.  Most of the operations have been renamed.	The
	procedure   `editor-display-type' has been eliminated, the
	procedure   `editor-display-types' now returns display-type objects
	rather than   their names.
	
	* Each display-type now indicates whether it supports multiple	
	screens.  This information is returned by procedure  
	`multiple-screens?'.
	
	* The buffer that appears in the typein window when no typein is  
	occurring is now different than the level-0 typein buffer.  This  
	means that, under normal circumstances, only one typein window
	shows	the typein buffer when typein is occurring.  The previous
	method of   obscuring the typein buffer with an override message on
	non-selected   screens is no longer used.
	
	* The file "winmis" has been eliminated.
	
	* The procedure `using-screen' has been eliminated.

1990-10-09 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.86), curren.scm (1.90): * The
	"-in-new-screen" commands have been replaced with   "-other-screen"
	commands.  This is more analogous to the   "-other-window"
	commands.
	
	* New editor variable `use-multiple-screens', if set true, causes  
	various window commands to use multiple screens instead of multiple
	  windows.  Affected commands include C-x o, C-M-v, C-x 4, and	
	commands that pop-up buffers.  This needs more work but is an  
	interesting first cut.
	
	* With multiple X screens, the selected screen is distinguished by 
	 having a cursor -- a screen's cursor is erased when it is  
	deselected.  This is desirable because it is no longer the case
	that   the selected screen and the focus screen are always the
	same.
	
	* Modeline formats have been extended to allow procedures as
	elements.    Such a procedure is called with the modeline's window
	as an	 argument, and is expected to produce another
	modeline-format element    which is used in its place.
	
	* Selecting a window in a screen other than the selected screen
	will   also select that screen.
	
	* New procedure `other-screen' will choose a different screen if
	one   is available.
	
	* New screen operations `screen-scroll-lines-down!' and  
	`screen-scroll-lines-up!' return a flag saying whether they  
	performed the scrolling.  Redisplay code tries to use them when it 
	 scrolls, and repaints if they don't work.  Currently these  
	operations are implemented for X screens but not for curses.
	
	* The `screen-write-substrings!' operation is now written in terms
	of   the `screen-write-substring!' operation, so that it need not
	be   implemented separately for each screen abstraction.
	
	* The display-type abstraction has been redesigned so that it has
	no   internal state -- the current display type is now part of the
	editor	 structure.  Most of the operations have been renamed.	The
	procedure   `editor-display-type' has been eliminated, the
	procedure   `editor-display-types' now returns display-type objects
	rather than   their names.
	
	* Each display-type now indicates whether it supports multiple	
	screens.  This information is returned by procedure  
	`multiple-screens?'.
	
	* The buffer that appears in the typein window when no typein is  
	occurring is now different than the level-0 typein buffer.  This  
	means that, under normal circumstances, only one typein window
	shows	the typein buffer when typein is occurring.  The previous
	method of   obscuring the typein buffer with an override message on
	non-selected   screens is no longer used.
	
	* The file "winmis" has been eliminated.
	
	* The procedure `using-screen' has been eliminated.

1990-10-07 09:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11term.c (1.11), version.h (11.48): Change
	`xterm-erase-cursor' and `xterm-draw-cursor' primitives to be
	direct calls to do exactly that.  Add new primitive
	`xterm-enable-cursor' which enables or disables the drawing of the
	cursor.

1990-10-06 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/window.scm (1.151): Implement `%set-inferior-start!' that
	does not force redisplay.

1990-10-05 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.36), curren.scm (1.89), editor.scm (1.196),
	edtfrm.scm (1.82), edtstr.scm (1.10), edwin.pkg (1.19), input.scm
	(1.85), prompt.scm (1.139), screen.scm (1.83), xcom.scm (1.6),
	xterm.scm (1.11): * Add new procedure `window-override-message'
	that returns the   override message, or #F if none.  This is used
	to implement   `current-message', which operates on the current
	typein window.	  `clear-message!' renamed to
	`clear-current-message!'.    `set-message!', renamed to
	`set-current-message!', now accepts #F as    an argument, in which
	case it acts like `clear-current-message!'.
	
	* Split `select-buffer-in-new-screen' into two parts: a procedure  
	`make-screen' that generates a new screen, and a call to  
	`select-screen'.  The new procedure `make-screen' replaces the	
	procedure of the same name which is now considered internal to the 
	 screen abstraction.
	
	* Change `select-screen' not to abort to top level, to run the	
	`select-buffer-hook', and to transfer the typein override message  
	from the previously-selected screen to the newly-selected one.	The
	  X screen event handler now does the abort to top level, since it
	is   still needed in that case.
	
	* Eliminate the typein bufferset -- typein buffers are shared by
	all   screens.	Display of the typein buffers is suppressed in	
	non-selected screens by a blank override message.  This has the  
	drawback that direct update of the typein window does not work if  
	there are multiple screens, which makes typein feel sluggish.
	
	* Implement procedures `screen0', `screen1+', `screen-1+', and	
	`screen+' for moving around the screen list.
	
	* `buffer-list' no longer copies its result -- don't clobber it!
	
	* New procedure `change-selected-buffer' makes the handling of
	buffer	 selection more uniform.
	
	* Eliminate cacheing of `editor-input-port' from "input.scm".  Just
	  extract the input port from `current-editor' every time.  Change
	the   keyboard reader to use `input-port/read-char' instead of	
	`read-char', since the former is faster.
	
	* Redesign the `button' abstraction to make it cleaner and more  
	general.  Rename the `buttonN-down' and `buttonN-up' variables to  
	`x-buttonN-down' and `x-buttonN-up'.  Change button-handling code
	so   that up buttons don't beep if they aren't bound to commands.
	
	* Updating of an X screen is now terminated if a non-keypress event
	  arrives while checking for update preemption.  This is done by  
	throwing out of the update.  I believe this test only happens in  
	places where it is safe to do this.
	
	* Make screen highlight control independent of the screen type.   
	Change screen abstractions so that screens support two operations, 
	  one to turn on highlighting, and the other to turn it off.

1990-10-05 20:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.35): Fix bug in `find-tag-default': don't use
	`re-search-forward' to find the end of the current symbol, use
	`re-match-forward' instead.

1990-10-05 19:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.103): * `hack-fastmap' needed to call
	`syntax-table/entries' because the syntax-table abstraction has
	changed since it was written.
	
	* Fixed bug in `re-disassemble-pattern' that showed the wrong
	syntax	 class for syntax operators.

1990-10-05 19:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.285): Fix bug: `line-inferiors-changed!' must
	update the `inferiors' instance variable even if `override-message'
	is set.

1990-10-05 15:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.47): Add checksumming code.  Binary files
	dumped by Psbtobin or fasdump have checksums in the header.  If the
	checksum field is SHARP_F, the checksum is ignored on the way in.
	
	Currently bchscheme's fasdump does not dump files with checksums. 
	This should be fixed.

1990-10-05 14:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasl.h (9.32): Add checksum field in header.

1990-10-05 14:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: dump.c (9.31), load.c (9.29), fasload.c (9.57): Add
	checksumming code.

1990-10-05 14:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.46): Inhibit checksum check within
	Bintopsb.

1990-10-05 09:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modwin.scm (1.34): Eliminate compiler warning.

1990-10-05 08:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/triv.con (1.2): Use one ".free" file to cache data for
	entire package model.  Compress the data stored in this file by
	eliminating duplicates and using vectors instead of lists.

1990-10-05 07:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: make.scm (1.6), anfile.scm (1.4): Use one ".free" file to
	cache data for entire package model.  Compress the data stored in
	this file by eliminating duplicates and using vectors instead of
	lists.

1990-10-05 07:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: cref.pkg (1.3), redpkg.scm (1.3): Use one ".free" file to
	cache data for entire package model.  Compress the data stored in
	this file by eliminating duplicates and using vectors instead of
	lists.

1990-10-04 06:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/object.scm (1.3): Use one ".free" file to cache data for
	entire package model.  Compress the data stored in this file by
	eliminating duplicates and using vectors instead of lists.

1990-10-03 22:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: global.scm (14.19), record.scm (1.6), runtime.pkg
	(14.79): Change to use `error:illegal-datum' and
	`error:datum-out-of-range'.

1990-10-03 22:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.5): Change to use `error:illegal-datum' and
	`error:datum-out-of-range'.

1990-10-03 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.98): Update handler for error
	COMPILED-CODE-ERROR, and add handler for return code
	COMPILER-ERROR-RESTART.

1990-10-03 17:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.16): Update handler for
	COMPILED-CODE-ERROR.

1990-10-03 17:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: framex.scm (14.14), conpar.scm (14.20): Add handler for
	COMPILER-ERROR-RESTART.

1990-10-03 14:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.58): Add handler for RC_COMP_ERROR_RESTART.

1990-10-03 14:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.46): Add comutil_primitive_error and
	associated changes (new return code, and re-use
	ERR_COMPILED_CODE_ERROR).

1990-10-03 14:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.31): Change ERR_BAD_COMBINATION to
	ERR_COMPILED_CODE_ERROR.  Change how comutil_primitive_error works,
	and add comp_error_restart.

1990-10-03 12:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/returns.h (9.38): Add RC_COMP_ERROR_RESTART.

1990-10-03 12:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.52): Add COMPILER-ERROR-RESTART.

1990-10-03 11:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: extern.h (9.38), storage.c (9.47), interp.c (9.57):
	Remove compiled_code_error_code, no longer used.

1990-10-03 11:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/errors.h (9.34): Disable ERR_BAD_COMBINATION.

1990-10-03 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.105), bufcom.scm (1.85), buffer.scm (1.137),
	buffrm.scm (1.35), bufwin.scm (1.284), c-mode.scm (1.44),
	comred.scm (1.83), curren.scm (1.88), decls.scm (1.13), ed-ffi.scm
	(1.3), editor.scm (1.195), edtfrm.scm (1.81), edtstr.scm (1.9),
	edwin.pkg (1.18), filcom.scm (1.141), info.scm (1.95), input.scm
	(1.84), iserch.scm (1.8), loadef.scm (1.7), make.scm (3.21),
	midas.scm (1.15), modefs.scm (1.123), modlin.scm (1.3), modwin.scm
	(1.33), pasmod.scm (1.43), prompt.scm (1.138), schmod.scm (1.14),
	scrcom.scm (1.3), screen.scm (1.82), texcom.scm (1.33), tximod.scm
	(1.13), wincom.scm (1.97), xcom.scm (1.5), xterm.scm (1.10): * X
	terminal interface extensively changed to use new event-handling  
	model -- this requires microcode 11.45 or later.
	
	* `delete-screen' command now works.  `create-new-screen' command  
	removed.
	
	* `save-buffers-kill-scheme' command now prompts for confirmation.
	
	* Changed all "event" hook variables to have event distributors as 
	 their values.	Users get access to an event by adding themselves
	to   the event distributor.
	
	* X screens now update their window and icon names under the
	control   of the new variables `x-screen-name-format' and  
	`x-screen-icon-name-format'.
	
	Changes to programming interface:
	
	* Changed names:
	
	  current-screen	selected-screen
	  all-windows		window-list (replacing old definition)
	  all-screens		screen-list
	  create-new-frame	select-buffer-in-new-screen
	  screen-window 	screen-root-window
	  change-screen 	select-screen
	
	* `typein-window?' is now true if the window is a typein window of
	any   screen.  Previously it was only true of the typein window of
	the   selected screen.
	
	* `select-window' and `select-cursor' now work for windows in any  
	screen, rather than just for the selected screen.
	
	* Changed `make-buffer' to use `editor-default-mode' for new
	buffers,   rather than `fundamental-mode'.
	
	* New procedure `typein-edit-other-window' returns the non-typein  
	window that was active immediately before the current typein edit  
	began.
	
	* New procedure `format-modeline-string' permits more general use
	of   the formatting language used for `mode-line-format'.
	
	* Implemented `command-reader/reset-and-execute', which aborts to
	the   top-level command reader and executes a thunk there before
	reading   the next command.  This mechanism replaces the  
	`set-reader-do-before-next-read!' procedure.
	
	Internal changes:
	
	* Modeline events for each window are now passed to the window's  
	screen, in case the screen needs them.
	
	* Guaranteed that `buffer-modified' modeline event is only
	signalled   when the "modified" bit of the buffer changes.
	
	* Eliminated `cursor-moved' modeline event.
	
	* Screens now cache their dimensions.  X screens use this cached  
	information to determine when a screen's size has changed.
	
	* Removed `reader-continuation' stuff, which was commented out
	anyway.    Current assumption is that, no matter how many screens
	there are,    there is only one input port.  For X, this means that
	all screens    are on the same display.
	
	* Editor-frame operations are now subsumed by screen operations.   
	There are no editor-frame operations in the (edwin) package.
	
	* Many references to `update-screens!' changed to be calls to  
	`update-selected-screen!'.
	
	* Incremental search bullet-proofed to remove its message when it
	is   aborted by any means.
	
	* `standard-editor-initialization' bullet-proofed against aborts.
	
	* Typein edits must consistenly use `current-typein-bufferset' for 
	 typein buffers.
	
	* Eliminated "rescrn" by moving `toggle-screen-width' into
	"wincom".

1990-10-02 21:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (14.8): Remove most of the calls to
	`guarantee-input-port'.  This is overkill, and the performance
	penalty is undesirable.

1990-10-02 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.13): Update to match new X interface. 
	Also reformat to fit on 80x80 pages.

1990-10-02 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: starbasx.c (1.4), version.h (11.45), x11.h (1.8),
	x11base.c (1.15), x11graph.c (1.7), x11term.c (1.10): Extensive
	rewrite of X11 interface.  New event-handling model, cleanup of
	several bugs, general reformatting of code.
	
	Requires runtime version 14.97 or later, and edwin 3.21 or later.

1990-10-02 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.6), version.scm (14.97): Change X
	graphics to match new event-handling in microcode.

1990-10-02 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.5): Don't use obsolete primitive
	`setup-timer-interrupt'.

1990-10-02 17:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gpio.c (1.7): Make gpio primitives interruptible.

1990-10-02 17:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/mc68k.m4 (1.14), cmpintmd/mc68k.h (1.17):
	Add asm_primitive_error.

1990-10-02 17:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.30): Add comutil_primitive_error.

1990-10-01 19:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/safety.txt (1.3): Arthur's fixes to some
	text.

1990-10-01 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxenv.c (1.2): `OS_process_timer_clear' must not signal
	errors, even if `OS_process_timer_set' isn't defined.

1990-10-01 18:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/safety.txt (1.2): Add a note about
	integrations.

1990-09-29 19:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/safety.txt (1.1): Initial revision

1990-09-27 21:56  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* runtime/input.scm (14.7): Added (guarantee-input-port port) where
	necessary to improve type safety.

1990-09-26 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.13): Pretty printer didn't handle #()
	correctly.

1990-09-19 23:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.46): Add nbits = 0 case to copy_bits to
	compensate for division bug in gcc.  The bug arises when dividing
	by OBJECT_LENGTH inside BIT_STRING_INDEX_TO_WORD.  The division is
	optimized into an unsigned left shift that works for non-negative
	values, but not for -1, used when the number of bits is 0!

1990-09-18 20:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (14.18), pp.scm (14.12), version.scm
	(14.96): Fix pretty printer's handling of custom pair and vector
	unparsers.

1990-09-18 20:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: gdatab.scm (14.5), boot.scm (14.4), global.scm (14.18):
	Alter `unparser/tagged-pair-method' and
	`unparser/tagged-vector-method' to disallow futures as tags.

1990-09-17 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.44): Fix recaching bug in extend_frame when
	the root of the chain is not the global environment and there is no
	cell being shadowed.  Compiler_uncache was not called so
	shadowing_recache called from higher levels was called on the wrong
	shadowed cell.	There is no shadowed cell in this case so we use
	the cell containing the unbound_trap_object.  This makes
	compiler_uncache and compiler_recache punt the caching operation.

1990-09-13 21:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.95): [no log message]

1990-09-13 19:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.11): Teach pretty-printer to respect the list
	depth and breadth limits.

1990-09-13 19:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.23): Change subproblem marker to "###".

1990-09-13 19:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.22): Change subproblem marker to "###".

1990-09-13 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.78), debug.scm (14.21): Add list depth
	and breadth limiting to the debugger.  Export the debugger's
	control variables to the global environment.

1990-09-13 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (14.17), output.scm (14.7), runtime.pkg
	(14.77): Implement new `fresh-line' operation.

1990-09-13 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.76), strout.scm (14.4): Add new
	procedure `with-output-string-port'.

1990-09-13 16:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.5): Recognize infinities and NaNs, and
	print them out specially.

1990-09-12 16:12  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/make.scm (3.20): Support for multiple screens.	Support for
	new runtime debugger stuff.  Uses apply-hooks instead of entities.

1990-09-12 15:56  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/scrcom.scm (1.2): delete-screen doesn't yet work.

1990-09-12 15:33  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.9): entity.scm is now obsolete. Apply hooks
	are used instead.

1990-09-12 12:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.17): Update continuation browser to match
	changes in the debugger.

1990-09-12 03:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.pkg (1.14.1.2), artdebug.scm (1.3): Update
	continuation browser to match changes in the debugger.

1990-09-11 22:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: debug.scm (14.20), dbgcmd.scm (14.9): Fix typo in
	`debug'.  Change `command/return' so that the $ option doesn't
	unsyntax and then resyntax the expression.

1990-09-11 22:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/kmacro.scm (1.31): Fix a number of instances of syntactic
	keywords being used as variables.

1990-09-11 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/input.scm (1.83): Fix a number of instances of syntactic
	keywords being used as variables.

1990-09-11 22:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: xform.scm (1.7), xform.scm (1.8): Fix a number of
	instances of syntactic keywords being used as variables.

1990-09-11 22:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xform.scm (1.6): Fix a number of instances of syntactic
	keywords being used as variables.

1990-09-11 22:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.5): Some minor rewordings.

1990-09-11 20:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/framex.scm (14.13): For the compiler's
	`COMBINATION-OPERAND' return type, index zero means the operator.

1990-09-11 20:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.30): Fix a number of instances of
	syntactic keywords being used as variables.

1990-09-11 20:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/asmmac.scm (1.7): Fix a number of instances of
	syntactic keywords being used as variables.

1990-09-11 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: lambda.scm (14.7), lambdx.scm (14.3), scan.scm (14.4),
	scode.scm (14.10), scomb.scm (14.9), unsyn.scm (14.10): Fix a
	number of instances of syntactic keywords being used as variables.

1990-09-11 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: numpar.scm (14.6), runtime.pkg (14.75), dragon4.scm
	(1.4): Add new procedures to signal wrong type and bad range
	errors.

1990-09-11 18:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.16): Add new procedures to signal wrong type
	and bad range errors.

1990-09-11 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.17): Add new procedures to signal wrong
	type and bad range errors.

1990-09-11 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.11): Tweak presentation.

1990-09-11 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.94): [no log message]

1990-09-11 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uproc.scm (1.1): Initial revision

1990-09-11 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.7), conpar.scm (14.19), dbgcmd.scm
	(14.8), dbgutl.scm (14.10), debug.scm (14.19), emacs.scm (14.6),
	framex.scm (14.12), lambda.scm (14.6), pp.scm (14.10), runtime.pkg
	(14.74), syntax.scm (14.13), udata.scm (14.15), uenvir.scm (14.20),
	unpars.scm (14.16), unsyn.scm (14.9), where.scm (14.8): * Advice
	package now signals error if the user attempts to advise   anything
	but an compound procedure.
	
	* Continuation parser keeps track of the type of the previous stack
	  frame.  This information is used as context in some situations.  
	 This mechanism replaces special-purpose flag
	`allow-next-extended?'.
	
	* Continuation parser slightly reorganized and commented to make it
	  easier to understand.
	
	* Debugger modified to provide more flexible control over use of  
	history information, to provide more detailed information about  
	stack frames, and to make it more self-explanatory.  Also knows  
	about "simulated" compiled-code environment frames, and ignores  
	them.
	
	* The environment inspector has been modified to make it more  
	self-explanatory.  The N command has been replaced by an O command 
	 like that of the debugger.
	
	* `pretty-print' now has additional optional argument that
	specifies   an indentation for the printed expression.	If given,
	the output is	indented by that many columns.
	
	* The emacs interface now has a hook for evaluating arbitrary  
	emacs-lisp expressions.  This is used to provide a better debugger 
	 interface.
	
	  **** This requires "xscheme.el" version 1.26 or later. ****
	
	* `stack-frame/debugging-info' now returns a third value,  
	"subexpression", which indicates the subexpression of the
	expression   that the next later subproblem is evaluating.
	
	* The lambda abstraction now forces the use of internal lambda	
	expressions for auxiliary variables.  This is required for correct 
	 semantics of `letrec'.
	
	* `make-lambda' now does error-checking on its parameter-list  
	arguments, which disallows duplicates in the parameter lists.
	
	* The `procedure' abstraction has been split off into a separate
	file.	 `procedure-arity' has been modified to handle entities
	correctly.    A new datatype, `apply-hook', is like entities except
	that it    doesn't pass itself to the handler. 
	`compound-procedure' operations    have been removed from the
	global environment; use generic    operations instead.
	
	* The unsyntaxer has a new entry point,
	`unsyntax-with-substitutions',	 which allows subexpressions of an
	expression to be replaced in the   output with arbitrary objects.
	
	* Removed `dynamic-state-let' from `system-global-syntax-table'.
	
	* The syntaxer now disallows the use of syntactic keywords as  
	variables.  This applies to references, bindings, and definitions.
	
	* The syntaxer signals an error if the name of a named `let' is
	also   one of its bound variables.
	
	* The syntaxer signals an error if there are duplicates in the	
	parameters of a lambda expression.
	
	* Compiled-code environments that do not have
	interpreter-compatible	 ancestors now simulate such ancestors for
	debugging convenience.	  The simulated ancestor is the closing
	environment of the compiled    code, if known, otherwise it is the
	system global environment.

1990-09-11 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.7.1.1), make.scm (3.19.1.1), make.scm
	(3.19.1.2): Eliminate uses of `entity' datatype.  Use new
	`apply-hook' datatype instead.

1990-09-11 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11base.c (1.14), version.h (11.44): Change
	`x-window-read-event-flags!' to mask its result so that only the
	least significant 3 bits are returned.

1990-09-11 15:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: decls.scm (1.10.1.1), edwin.pkg (1.14.1.1): Eliminate
	uses of `entity' datatype.  Use new `apply-hook' datatype instead.

1990-09-11 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.13): Change some EMPTY_LIST references to
	SHARP_F.

1990-09-10 14:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sicp/: stream.scm (1.1), strmac.scm (1.1), studen.scm (1.1):
	Initial revision

1990-09-10 14:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sicp/: compat.scm (1.1), genenv.scm (1.1), graphics.scm (1.1),
	sbuild.scm (1.1): Initial revision

1990-09-08 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/prgcop.scm (1.2): Fix typo.

1990-09-08 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.15): Fix typo and rename lambda parameter.

1990-09-07 21:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/artutl.c (1.5): Use `FIXNUM_TO_LONG' in definition of
	`fixnum_to_long'.

1990-09-07 20:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: wsize.c (9.30), bitstr.c (9.45), boot.c (9.63),
	cmpintmd/hppa.h (1.17), cmpintmd/mc68k.h (1.16), cmpintmd/mips.h
	(1.7), config.h (9.56), default.h (9.34), object.h (9.35), scheme.h
	(9.33), term.c (1.2), version.h (11.43): * Eliminate BELL,
	USHORT_SIZE, ULONG_SIZE, DBFLT_SIZE, UNSIGNED_SHIFT,  
	FLONUM_EXPT_SIZE, FLONUM_MANTISSA_BITS, MAX_FLONUM_EXPONENT, quick.
	
	* Rename `Exit_Scheme' macros to upper case.
	
	* New macro UNSIGNED_SHIFT_BUG has opposite meaning of old  
	UNSIGNED_SHIFT -- it says that the compiler uses arithmetic right  
	shift on the `unsigned long' type.
	
	* Redo MIPS configuration to handle non-DEC machines.
	
	* Add configurations for i386 and NeXT.
	
	* Eliminate `term_type' definition -- HP's compiler no longer has
	this   problem.
	
	* Change `FIXNUM_TO_LONG' to use more efficient conversion
	suggested   by Aubrey Jaffer.

1990-09-07 18:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.37): Fix typos in methods
	for `fixnum-quotient' and `fixnum-remainder'.

1990-09-07 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.36): Fix typos in methods
	for `fixnum-quotient' and `fixnum-remainder'.

1990-09-07 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autold.scm (1.48), decls.scm (1.12), ed-ffi.scm (1.2),
	edwin.pkg (1.16): Eliminate uses of `entity' datatype.	Use new
	`apply-hook' datatype instead.

1990-09-06 20:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (14.6): Eliminate variables named `lambda'. 
	Pull all empty variable definitions to the beginning of the file.

1990-09-06 20:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.10): Make reader accept "#*" as a valid,
	zero-length bit string.

1990-08-31 16:17  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.8), edwin.pkg (1.15): Support for multiple
	screens.

1990-08-31 16:11  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/: bufcom.scm (1.84), curren.scm (1.87), decls.scm (1.11),
	editor.scm (1.194), edtfrm.scm (1.80), edtstr.scm (1.8), filcom.scm
	(1.140), input.scm (1.82), prompt.scm (1.137), scrcom.scm (1.1),
	xcom.scm (1.4), xterm.scm (1.9): Support for multiple screens.

1990-08-27 16:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxsig.c (1.3): When stopping Scheme, use signal that
	was used to tell us we needed to stop.	Previously, we always used
	SIGTSTP.

1990-08-27 09:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/reuse.scm (1.6): Fix a bug in the interaction
	between multi-closures and frame reusing.  The shared closure block
	was not considered when determining whether a slot could be
	rewritten or not.

1990-08-24 23:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.18): Fix edti bug from last set of
	changes.

1990-08-24 16:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.76),
	rtlgen/rgrval.scm (4.17), fgopt/offset.scm (4.8): Fix two bugs in
	multiclosure code:
	
	- non-canonical multi-closure entries appearing in letrecs were
	computed incorrectly.  The context offset is not the context after
	binding since the code has not finished pushing.
	
	- referencing a closure from within itself cannot bypass the
	variable lookup code if the closure for environment is not the
	closure for value.  This only affects machines where closures are
	canonicalized for environment.

1990-08-22 20:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (4.75): Change internal
	procedure format words to look like return addresses so that the
	debugger can parse the stack.

1990-08-21 22:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: mips/rules3.scm (1.3), spectrum/rules3.scm
	(4.28): Make open procedures look like return addresses to the
	debugger.

1990-08-21 00:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: version.scm (14.93), conpar.scm (14.17), debug.scm
	(14.18), framex.scm (14.11), infutl.scm (1.18), runtime.pkg
	(14.73), udata.scm (14.14), uenvir.scm (14.19): Modify the stack
	parser and environment utilities to handle interrupt frames from
	compiled code in which the return address is a procedure.

1990-08-20 22:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlobj.scm (4.9), rtlgen/rtlgen.scm (4.23):
	Add next-continuation-offset field to rtl-procedures so that
	internal procedures can be represented as return addresses for the
	debugger.

1990-08-20 22:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.26): Fix broken comment.

1990-08-20 22:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: make.scm-68040 (4.75), rules3.scm
	(4.25): Replace internal code words with return address code words
	so the debugger will not get confused about internal procedures and
	interrupt frames in compiled code.

1990-08-17 19:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.4): Update the list of
	missing macros to document.

1990-08-17 19:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.29): Split cache flusing code from
	STORE_EXECUTE_CACHE_ADDRESS, since it is not needed at GC time
	because the whole cache is flushed immediately afterwards.
	
	The flushing code is now in FLUSH_I_CACHE_REGION, used explicitly
	by store_uuo_link in cmpint.c

1990-08-17 19:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.16): Split cache flusing code from
	STORE_EXECUTE_CACHE_ADDRESS, since it is not needed at GC time.
	
	The flushing code is now in FLUSH_I_CACHE_REGION, used explicitly
	by store_uuo_link in cmpint.c

1990-08-17 19:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.6): Split cache flusing code from
	STORE_EXECUTE_CACHE_ADDRESS, since it is not needed at GC time.
	
	The flushing code is now in FLUSH_I_CACHE_REGION, used explicitly
	by store_uuo_link in cmpint.c

1990-08-17 16:05  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/ux.h (1.10): Made definition of HAVE_SELECT be posix
	independent.

1990-08-16 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxtop.c (1.4), fasload.c (9.56): Export
	`execute_reload_cleanups' and call it when resuming after a
	`dump-world'.

1990-08-16 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.c (1.2), ux.h (1.9): Add memoization to
	`UX_SC_CLK_TCK'.

1990-08-16 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.92): Don't use `event:before-exit' to
	tell the microcode to clean itself up.	There is now a new hook at
	the microcode level that delays this cleanup until the
	`disk-restore' is committed.

1990-08-16 16:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.5): Don't call `x-close-all-displays'
	before disk-restoring.

1990-08-16 16:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/io.scm (14.8): Don't call `close-all-open-files' before
	disk-restoring.

1990-08-16 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.55), version.h (11.42): Implement new
	`reload_cleanup' facility to provide a hook for cleaning up various
	things before a disk-restore.

1990-08-16 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.12): Use new `add_reload_cleanup' facility
	to close all the display connections.

1990-08-16 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11.h (1.7): Change declarations of `x_malloc' and
	`x_realloc' to use `PTR' instead of `char *'.

1990-08-16 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxio.c (1.5): Change `OS_channel_close_all' to internal
	definition and use new `add_reload_cleanup' facility to install it.

1990-08-16 15:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/osio.h (1.3): Delete `OS_channel_close_all'.

1990-08-16 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/extern.h (9.37): Export `add_reload_cleanup'.

1990-08-16 10:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.15): Add cache-flushing call to
	STORE_TRAMPOLINE_ENTRY .

1990-08-16 04:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.54): Wrap call to read_file_start inside
	of LOAD-BAND in a transaction to undo initial read.

1990-08-16 04:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utils.c (9.47): Change some error death messages.

1990-08-16 04:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/debug.c (9.37): Add paranoia check for inconsistent
	stack.

1990-08-16 04:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/savres.scm (14.14): Make disk-restore invoke
	canonicalize-input-filename before invoking event:before-exit.

1990-08-16 01:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.6): Add missing C-macro continuation lines
	from mips version of DECLARE_UX_SIGNAL_CODES.

1990-08-14 14:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: uxtrap.h (1.5), cmpauxmd/mips.m4 (1.3): Update from
	jmiller.

1990-08-09 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ux.h (1.8), uxio.c (1.4): Move non-blocking I/O
	definitions to "ux.h".

1990-08-09 22:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/oscond.h (1.3): Recent versions of ultrix are mostly
	POSIX-compliant.

1990-08-09 22:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxtop.c (1.3): Forgot some arguments to fprintf.

1990-08-09 15:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.4): Fix casting bug.

1990-08-09 15:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.3): Change the code to accomodate:
	
	- Machines where the Scheme stack pointer and the C stack pointer
	do not live in the same register.
	
	- The "new" compiled code interface, where C code (including
	primitives) always executes on the C stack, except for the couple
	of instructions each way.

1990-08-09 15:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.4): Add definition of FULL_SIGCONTEXT_SCHSP
	for machines where the Scheme stack pointer and the C stack pointer
	are separate registers.

1990-08-09 11:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.4): Add /scheme/850 directories to
	rewrite rules.

1990-08-09 00:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.5): Fix bug in
	STORE_ABSOLUTE_ADDRESS by which large addresses in the 26-bit range
	where being relocated incorrectly on band-load.

1990-08-08 16:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.14): Fix error message when the
	cache information file is not found.

1990-08-08 16:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: hppacach.h (1.1), hppacach.c (1.1): Initial revision

1990-08-08 16:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.13): Add definition of
	ENTRY_PREFIX_LENGTH .  Add cache-flushing code to guarantee
	consistency between the D-cache and the I-cache after instructions
	are copied, moved, or created in Scheme data space.

1990-08-08 16:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.10): Fix type declaration for
	cache_flush_all.  Make cache_flush_region round up rather than
	truncate when determining how many blocks to flush.

1990-08-07 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.16), histry.scm (14.3), version.scm
	(14.91): When the continuation parser makes a transition from
	interpreted to compiled frames or vice-versa, the history
	subproblem must be stepped.  The reasons for this are that:
	
	1. When interpreted code is called from compiled code, a new
	history subproblem is pushed.  This subproblem must be discarded
	when making the transition back to the compiled code stack frame.
	
	2. When compiled code is called from interpreted code, the existing
	history subproblem is preserved for use if the compiled code
	tail-recurses back into interpreted code.  This subproblem must be
	discarded when making the transition back to the interpreted code
	stack frame.

1990-08-07 19:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/debug.c (9.36): Fix occurrences of old names of renamed
	variables.

1990-08-07 19:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bkpt.c (9.24): Add definition of sp_nil .

1990-08-07 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.18): Temporarily disable consistency check
	in `stack-ccenv/normal-closure', because it fails for certain cases
	of multi-closures.

1990-08-07 11:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.9): - Add new hooks for compiled
	code:  store_closure_entry     multiply_fixnum	      
	fixnum_quotient 	fixnum_remainder	fixnum_lsh
	
	- Add debugging code (under control of an M4 definition).
	
	- Add cache flushing instructions to store_closure_code (shared by 
	 store_closure_entry).
	
	- Add cache flushing subroutines:	cache_flush_region
	(address, count_in_lwords)   cache_flush_all (cache_set,
	cache_info)

1990-08-05 01:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.27): Fix bug in
	cons-closure-entry by which branch-expanded LDOs were causing
	problems: the ADDIL was being executed immediately after the BLE,
	the LDO on return, and thus the address stored in the closure was
	bogus.

1990-08-05 01:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/instr2.scm (1.3): Add PCR-HOOK
	pseudo-op for the closure creation code.

1990-07-30 19:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.7): Make Ultrix and SunOS describe themeselves
	as such.

1990-07-30 19:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/oscond.h (1.2): Include ultrix conditionalization in
	oscond.h rather than s/ultrix.h .

1990-07-30 13:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.6): Fix ifdefs for HPUX after ULTRIX changes.

1990-07-30 13:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.41): Merge in Jmiller's changes for the
	MIPS.

1990-07-30 13:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.5): Remove dangling #endif left over from
	previous edit.

1990-07-30 12:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: uxsig.c (1.2), uxtrap.h (1.3): Merge in Jmiller's
	last changes.

1990-07-30 12:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ux.h (1.4): Merge in Jmiller's last changes.

1990-07-30 12:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/posixtyp.h (1.2): Merge in Jmiller's last changes.

1990-07-30 12:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/mips.h (1.4), cmpauxmd/mips.m4 (1.2): Merge
	in Jmiller's last changes.

1990-07-30 00:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.15): Remove reference to primitive
	file-read-char (gone), and use new names for file primitives.

1990-07-29 23:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/savres.scm (14.13): Move the call to
	reset-gc-after-restore! from disk-save/kernel to setup-image, since
	both disk-save and dump-world must take care of it.

1990-07-28 14:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ostop.h (1.2): Resurrect dmpwrld.c .  Install hooks in
	various places so that IO descriptors, etc. are OK after resuming
	execution.

1990-07-28 14:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: boot.c (9.62), dmpwrld.c (9.32), ux.h (1.3), uxio.c
	(1.3), uxproc.c (1.2), uxterm.c (1.3), uxtop.c (1.2), version.h
	(11.40): Resurrect dmpwrld.c .	Install hooks in various places so
	that IO descriptors, etc. are OK after resuming execution.

1990-07-27 17:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/unexhppa.c (1.1): Initial revision

1990-07-27 17:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/unexec.c (9.23): New version of unexec from emacs 18.55
	.

1990-07-26 20:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.3): Fix pathnames after making altdorf
	the Switzerland server.

1990-07-26 00:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.26): Fix bug in
	zero-entry multi closures.  The allocation was done incorrectly.

1990-07-24 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (11.39), x11.h (1.6), x11base.c (1.11),
	x11graph.c (1.6): Fix `graphics-clear' of X window to respect the
	clip rectangle.

1990-07-23 10:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.36): fixnum-pred-2->cc
	was renamed to fixnum-pred->cc.  Remove left-over reference.

1990-07-22 16:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: make.scm-big (4.73), make.scm-little
	(4.73): Merge in Jmiller's changes for multi-closures.

1990-07-22 16:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/rulflo.scm (1.2): Merge in Jmiller's
	changes for multi-closures.

1990-07-22 16:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: rules1.scm (1.2), rules3.scm (1.2):
	Merge in Jmiller's changes for multi-closures.

1990-07-22 16:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/machin.scm (1.2): Merge in Jmiller's
	changes for multi-closures.

1990-07-22 16:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: compiler.pkg (1.2), decls.scm (1.2):
	Merge in Jmiller's changes for multi-closures.

1990-07-22 14:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.3): Update to version
	match 68k compiler version 4.74.  Multi closures.  Bit-wise fixnum
	operations.  Add out-of-line multiply and divide (quotient and
	remainder) routines that use the floating-point co-processor.

1990-07-22 14:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: decls.scm (4.27), lapgen.scm (4.35),
	machin.scm (4.22), make.scm (4.74), rules1.scm (4.33), rules3.scm
	(4.25), rulfix.scm (4.35): Update to version match 68k compiler
	version 4.74.  Multi closures.	Bit-wise fixnum operations.  Add
	out-of-line multiply and divide (quotient and remainder) routines
	that use the floating-point co-processor.

1990-07-22 14:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm3.scm (1.2): Replace uses of land
	and quotient with fix:and and fix:quotient, respectively.  Note:
	Uses of fix:quotient should be replaced with uses of fix:lsh.

1990-07-22 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm2.scm (4.17): Fix minor bugs in
	disassembly (some instructions were missing the completer).

1990-07-22 14:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/dassm1.scm (4.15): Fix bug in
	compiler:disassemble by which only half of the variable caches was
	being displayed.

1990-07-22 14:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.pkg (1.30): Update to version
	match 68k compiler version 4.74.  Multi closures.  Bit-wise fixnum
	operations.  Add out-of-line multiply and divide (quotient and
	remainder) routines that use the floating-point co-processor.

1990-07-22 02:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prosio.c (1.2): Fix missing end-of-line back-slash in
	the documentation string for FILE-FILL-INPUT-BUFFER.

1990-07-22 02:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/x11base.c (1.10): Fix unitialized variable bug in
	xw_wait_for_window_event.  Typo in the previous check-in.

1990-07-22 02:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/x11base.c (1.9): Fix unitialized variable bug in
	xw_wait_for_window_event.

1990-07-20 11:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.35): Improve code sequence
	for constant second argument to FIXNUM-REMAINDER.

1990-07-19 21:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.90): Improve copy-program, and move it to
	a separate file (prgcop) and package (runtime program-copier).

1990-07-19 21:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.72): Add package definition for package
	(runtime program-copier).

1990-07-19 21:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.23): Add initialization for package (runtime
	program-copier).

1990-07-19 21:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/prgcop.scm (1.1): Initial revision

1990-07-19 21:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/global.scm (14.16): Remove copy-program.  It now lives in
	prgcop.scm .

1990-07-19 17:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.8): Add fixnum-lsh to list of primitives
	that can be constant-folded.

1990-07-19 15:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.32): Take word size into account.  Shifts
	past fixnum size always return 0.

1990-07-19 00:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/instr1.scm (1.2): Add the NV condition
	to extract-deposit-condition.

1990-07-18 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.89): Handle EOF on the console input.

1990-07-16 19:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gpio.c (1.6): Enable io_burst mode.  It speeds up small
	transfers significantly.

1990-07-16 18:07  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/version.h (11.38): New treatment of X events.  
	
	There is now a global X event queue which can be accessed by scheme
	primitives.
	
	Added select() in ux.h

1990-07-16 17:06  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/ux.h (1.2): Added select().

1990-07-16 17:01  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/: x11term.c (1.9), x11graph.c (1.5): New treatment of X
	events.  
	
	There is now a global X event queue which can be accessed by scheme
	primitives.

1990-07-16 16:52  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/x11.h (1.5): New treatment of X events.  
	
	There is now a global X event queue which can be accessed by scheme
	primitives.

1990-07-16 16:17  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/x11base.c (1.8): New treatment of X events.  
	
	There is now a global X event queue which can be accessed by scheme
	primitives.

1990-07-16 13:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: savres.scm (14.12), runtime.pkg (14.71), gc.scm (14.5),
	version.scm (14.88): Change restart sequence so that bands dumped
	from Emacs will restore correctly.

1990-07-15 19:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.34): Add fixnum-lsh.

1990-07-15 18:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.39): Add fixnum-lsh.

1990-07-15 18:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/gconst.scm (4.8): Add fix:lsh

1990-07-15 18:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fixnum.c (9.31), version.h (11.36), version.h
	(11.37): Add fixnum-lsh.

1990-07-13 17:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gpio.c (1.5): Add io_timeout_ctl to gpio-open.

1990-07-12 12:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm1.scm (4.15): Fix bug in
	disassembler/write-linkage-section by which only even-numbered
	variable caches were being printed.

1990-07-03 15:49  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/version.scm (14.87): Added dynamic-state-let (in
	syntax.scm), which is like fluid-let except that it allows an
	arbitrary dynamic state space as an argument.

1990-07-03 15:47  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.12): Added dynamic-state-let, which is
	like fluid-let except that it allows an arbitrary dynamic state
	space as an argument.

1990-06-28 15:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.7): Rename fixnum and flonum entries to use
	the microcode primitive name, rather than the convenient name.

1990-06-28 14:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.c (1.2): Fix trap_handler so that the saved_*
	parameters are set up correctly before invoking trap_recover.  This
	fixes the bug by which all traps were reported as "User microcode
	reset".
	
	Add find_signal_code_name to generate a string for the signal code
	using DECLARE_UX_SIGNAL_CODES defined in uxtrap.h .
	
	Modify setup_trap_frame to use find_signal_code_name .
	
	Fix find_block_address_in_area to not run into an infinite loop (it
	was not incrementing the area pointer on most objects).

1990-06-28 14:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/uxtrap.h (1.2): Add definition of
	DECLARE_UX_SIGNAL_CODES to allow better reporting of hardware
	traps.

1990-06-28 14:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/purify.c (9.44): Fix consistency test after the second
	phase of purify.  It no longer depends on FLOATING_ALIGNMENT and
	only on whether constant space was not overrun by the purification.

1990-06-28 14:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/purutl.c (9.39): Change find_constant_space_block to
	return the address of the first word of the block where the object
	is found, rather than the address of the last word of the previous
	block.
	
	Change impurify to never impurify flonums.
	
	Remove extraneous conditionalization on FLOATING_ALIGNMENT.

1990-06-28 14:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.13): Change the definition of
	PLAUSIBLE_CC_BLOCK_P to handle two cases: expression blocks, and
	single procedure blocks generated when the compiler compiles by
	procedures.

1990-06-28 14:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.15): Define ENTRY_PREFIX_LENGTH for
	use in cmpgc.h .  This allows PLAUSIBLE_CC_BLOCK_P to answer true
	to blocks with single procedures.

1990-06-28 14:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/error.scm (14.10): Better reporting of hardware traps.

1990-06-28 14:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.15), runtime.pkg (14.70): Export two
	more hardware trap utilities for the error handler.

1990-06-28 12:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.14): Better reporting of hardware traps.

1990-06-28 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.17): compiled-entry/block is the identity
	on compiled code blocks.

1990-06-28 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.86): Better reporting of hardware traps. 
	compiled-entry/block is the identity on compiled code blocks. 
	Fixnum operations can now be constant folded by the syntaxer.

1990-06-27 10:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.6): Add fixnum and flonum operations to the
	list of procedures that can be constant-folded by the runtime
	system.

1990-06-27 10:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.16): Add bit-wise boolean operations
	to the list of functions the compiler can open-code and whose
	results can be shared.
	
	Change the date.

1990-06-27 10:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.15): Add bit-wise boolean operations
	to the list of functions the compiler can open-code and whose
	results can be shared.

1990-06-26 18:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/lapgen.scm (4.33), rtlgen/opncod.scm
	(4.38): Add open coding for bit-wise boolean operations, and
	primitive-object-ref/set! .
	
	Enable the open coding of fixnum-quotient and fixnum-remainder.
	
	Add optimizations for these operations when the second operand is a
	power of 2 (tricky, see GLS's paper "Arithmetic shifting considered
	harmful").

1990-06-26 18:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.74): Add open coding
	for bit-wise boolean operations, and primitive-object-ref/set! .
	
	Enable the open coding of fixnum-quotient and fixnum-remainder.
	
	Add optimizations for these operations when the second operand is a
	power of 2 (tricky, see GLS's paper "Arithmetic shifting considered
	harmful").

1990-06-25 14:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/make.scm (4.14): Add fixnum bit-wise operations.

1990-06-25 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.85), sf/gconst.scm (4.7): Add fixnum
	bit-wise operations.

1990-06-25 14:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gpio.c (1.4): Change gpio-read-string and
	gpio-write-string to take position and count parameters, rather
	than just count parameters.  This speeds up output when it is
	divided into chunks.

1990-06-25 14:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fixnum.c (9.30), version.h (11.35): Add bit-wise
	fixnum operations.

1990-06-21 21:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/uxfs.c (1.2): In `OS_file_remove_link', delete regular
	files no matter how many links they have.

1990-06-21 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: emacs.scm (14.5), intrpt.scm (14.4), runtime.pkg
	(14.69), version.scm (14.84): Implement
	`check-and-clean-up-input-channel' in runtime system -- microcode
	no longer provides this service.

1990-06-21 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.3): Use new `get-decoded-time' primitive.

1990-06-21 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prosenv.c (1.2), prosenv.c (1.3): Forgot to convert
	elements of `get-decoded-time' to Scheme integers.

1990-06-21 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.7), runtime.pkg (14.68), version.scm
	(14.83): Change console-input-port so that it always buffers the
	input.	Because of this change there is no need to use the special
	terminal input primitives -- these should be flushed from the
	microcode.  All buffered input channels now support the `interval'
	argument of the `char-ready?' operation.

1990-06-21 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.46): Patch to `Restore_History' from
	JMiller.

1990-06-21 16:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: osio.h (1.2), uxio.c (1.2), uxterm.c (1.2), uxtty.c
	(1.2), version.h (11.34): Change `OS_channel_read' and
	`OS_channel_write' to be interruptable, so that any I/O can be
	interrupted by the user typing ^G.  Fix minor thinko in
	`OS_channel_close' that caused the console I/O channels to be
	marked as closed even though they were still open.

1990-06-20 23:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ppband.c (9.39): Fix bogus type declaration in
	Load_Data (FILE * -> SCHEME_OBJECT *).

1990-06-20 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: make.scm (3.19), editor.scm (1.193), debuge.scm (1.39):
	Changes to match runtime system 14.82.

1990-06-20 18:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.7): Generate a .cref file when resyntaxing
	Edwin.

1990-06-20 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.6): Generate a .cref file when resyntaxing
	Edwin.

1990-06-20 17:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.51), bchmmg.c (9.55): * Complete redesign
	of the operating-system interface.  I/O is more uniform and is able
	to take advantage of things like sockets, pipes, ptys, etc.  All
	I/O buffering is moved into the runtime system for better
	performance with Scheme compiler code.	Strong knowledge of POSIX.1
	should make porting to VMS easy once VMS supports POSIX.1.
	
	* Change operating system conditionalizations to standard form
	suggested by POSIX.1.
	
	* Add FSF macros to support ANSI declarations.
	
	* Add dynamic-stack package and obstacks.
	
	* Provide higher-level utilities for parsing command line options.
	
	* Instead of `Back_To_Eval', there is now a procedure
	`abort_to_interpreter' which knows about everything that needs to
	be cleaned up.
	
	* Change names of some macros:
	
		Pop				STACK_POP
		Push				STACK_PUSH
		Push_From			STACK_LOCATIVE_PUSH
		Pop_Into			STACK_LOCATIVE_POP
	(similar)
		Stack_Ref			STACK_REF
		Top_Of_Stack()			STACK_REF(0)
		Simulate_Popping		STACK_LOC
		Simulate_Pushing		STACK_LOC (similar)
		Stack_Distance			STACK_LOCATIVE_DIFFERENCE
	(similar)
		Pop_Primitive_Frame		POP_PRIMITIVE_FRAME
		Metering_Apply_Primitive	PRIMITIVE_APPLY
		Export_Regs_Before_Primitive   
	EXPORT_REGS_BEFORE_PRIMITIVE
		Import_Regs_After_Primitive	IMPORT_REGS_AFTER_PRIMITIVE
	
	* Sun assembler can't handle a constant used in "cmpaux-mc68k.m4",
	so provide an option to rewrite that instruction as two
	instructions.
	
	* Some compilers won't cast a function to an integer, so kludge
	around it by mis-declaring the external function as an integer,
	taking it the integer's address, and casting THAT to an integer.
	
	* Move critical section code and termination code to their own
	files.

1990-06-20 16:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.82): * Changes to operating system
	interface to match those introduced in microcode version 11.33,
	which is required for this runtime system version.
	
	* The low-level channel abstraction has been changed -- it now
	contains only a microcode channel descriptor and the channel type. 
	The microcode no longer knows the format of channels.
	
	* Subprocess support has been temporarily removed.  New subprocess
	support is being designed to accompany changes in the microcode.
	
	* The file-copy primitive is now written in Scheme using
	lower-level file system and I/O operations.
	
	* Use `input-port/immediate-mode' and `input-port/normal-mode' to
	switch terminal mode.  The operations `read-char-immediate' and
	`peek-char-immediate' are now obsolete.  REP loops force the input
	port into normal mode, while the debugger forces it into immediate
	mode.
	
	* I/O buffering for input files, output files, and the console
	output is now done in Scheme.  The microcode provides no buffering.
	 These ports understand `buffer-size' and `set-buffer-size'
	operations to control the amount of buffering.	A buffer size of 0
	disables buffering entirely.
	
	* `read-start!' and `read-finish!' are now optional operations on
	input ports.
	
	* An input or output port will now report the set of operations
	that it responds to.

1990-06-20 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/tscript.scm (1.1): Initial revision

1990-06-20 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgcmd.scm (14.7), emacs.scm (14.4), input.scm (14.6),
	io.scm (14.6), load.scm (14.17), make.scm (14.22), output.scm
	(14.6), pathnm.scm (14.7), rep.scm (14.14), runtime.pkg (14.67),
	sfile.scm (14.4), uenvir.scm (14.17), uerror.scm (14.14): * Changes
	to operating system interface to match those introduced in
	microcode version 11.33, which is required for this runtime system
	version.
	
	* The low-level channel abstraction has been changed -- it now
	contains only a microcode channel descriptor and the channel type. 
	The microcode no longer knows the format of channels.
	
	* Subprocess support has been temporarily removed.  New subprocess
	support is being designed to accompany changes in the microcode.
	
	* The file-copy primitive is now written in Scheme using
	lower-level file system and I/O operations.
	
	* Use `input-port/immediate-mode' and `input-port/normal-mode' to
	switch terminal mode.  The operations `read-char-immediate' and
	`peek-char-immediate' are now obsolete.  REP loops force the input
	port into normal mode, while the debugger forces it into immediate
	mode.
	
	* I/O buffering for input files, output files, and the console
	output is now done in Scheme.  The microcode provides no buffering.
	 These ports understand `buffer-size' and `set-buffer-size'
	operations to control the amount of buffering.	A buffer size of 0
	disables buffering entirely.
	
	* `read-start!' and `read-finish!' are now optional operations on
	input ports.
	
	* An input or output port will now report the set of operations
	that it responds to.

1990-06-20 16:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.33): * Complete redesign of the
	operating-system interface.  I/O is more uniform and is able to
	take advantage of things like sockets, pipes, ptys, etc.  All I/O
	buffering is moved into the runtime system for better performance
	with Scheme compiler code.  Strong knowledge of POSIX.1 should make
	porting to VMS easy once VMS supports POSIX.1.
	
	* Change operating system conditionalizations to standard form
	suggested by POSIX.1.
	
	* Add FSF macros to support ANSI declarations.
	
	* Add dynamic-stack package and obstacks.
	
	* Provide higher-level utilities for parsing command line options.
	
	* Instead of `Back_To_Eval', there is now a procedure
	`abort_to_interpreter' which knows about everything that needs to
	be cleaned up.
	
	* Change names of some macros:
	
		Pop				STACK_POP
		Push				STACK_PUSH
		Push_From			STACK_LOCATIVE_PUSH
		Pop_Into			STACK_LOCATIVE_POP
	(similar)
		Stack_Ref			STACK_REF
		Top_Of_Stack()			STACK_REF(0)
		Simulate_Popping		STACK_LOC
		Simulate_Pushing		STACK_LOC (similar)
		Stack_Distance			STACK_LOCATIVE_DIFFERENCE
	(similar)
		Pop_Primitive_Frame		POP_PRIMITIVE_FRAME
		Metering_Apply_Primitive	PRIMITIVE_APPLY
		Export_Regs_Before_Primitive   
	EXPORT_REGS_BEFORE_PRIMITIVE
		Import_Regs_After_Primitive	IMPORT_REGS_AFTER_PRIMITIVE
	
	* Sun assembler can't handle a constant used in "cmpaux-mc68k.m4",
	so provide an option to rewrite that instruction as two
	instructions.
	
	* Some compilers won't cast a function to an integer, so kludge
	around it by mis-declaring the external function as an integer,
	taking it the integer's address, and casting THAT to an integer.
	
	* Move critical section code and termination code to their own
	files.

1990-06-20 15:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.42): * Complete redesign of the
	operating-system interface.  I/O is more uniform and is able to
	take advantage of things like sockets, pipes, ptys, etc.  All I/O
	buffering is moved into the runtime system for better performance
	with Scheme compiler code.  Strong knowledge of POSIX.1 should make
	porting to VMS easy once VMS supports POSIX.1.
	
	* Change operating system conditionalizations to standard form
	suggested by POSIX.1.
	
	* Add FSF macros to support ANSI declarations.
	
	* Add dynamic-stack package and obstacks.
	
	* Provide higher-level utilities for parsing command line options.
	
	* Instead of `Back_To_Eval', there is now a procedure
	`abort_to_interpreter' which knows about everything that needs to
	be cleaned up.
	
	* Change names of some macros:
	
		Pop				STACK_POP
		Push				STACK_PUSH
		Push_From			STACK_LOCATIVE_PUSH
		Pop_Into			STACK_LOCATIVE_POP
	(similar)
		Stack_Ref			STACK_REF
		Top_Of_Stack()			STACK_REF(0)
		Simulate_Popping		STACK_LOC
		Simulate_Pushing		STACK_LOC (similar)
		Stack_Distance			STACK_LOCATIVE_DIFFERENCE
	(similar)
		Pop_Primitive_Frame		POP_PRIMITIVE_FRAME
		Metering_Apply_Primitive	PRIMITIVE_APPLY
		Export_Regs_Before_Primitive   
	EXPORT_REGS_BEFORE_PRIMITIVE
		Import_Regs_After_Primitive	IMPORT_REGS_AFTER_PRIMITIVE
	
	* Sun assembler can't handle a constant used in "cmpaux-mc68k.m4",
	so provide an option to rewrite that instruction as two
	instructions.
	
	* Some compilers won't cast a function to an integer, so kludge
	around it by mis-declaring the external function as an integer,
	taking it the integer's address, and casting THAT to an integer.
	
	* Move critical section code and termination code to their own
	files.

1990-06-20 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxenv.c (1.1), pruxsock.c (1.1), ptrvec.c (1.1),
	term.c (1.1), transact.c (1.1), wind.c (1.1): Initial revision

1990-06-20 15:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: critsec.h (1.1), dstack.h (1.1), error.c (1.1),
	intext.c (1.1), intext.h (1.1), obstack.c (1.1), obstack.h (1.1),
	os.h (1.1), oscond.h (1.1), osctty.h (1.1), osenv.h (1.1), osfile.h
	(1.1), osfs.h (1.1), osio.h (1.1), osproc.h (1.1), osscheme.c
	(1.1), osscheme.h (1.1), ossig.h (1.1), osterm.h (1.1), ostop.h
	(1.1), ostty.c (1.1), ostty.h (1.1), ux.c (1.1), ux.h (1.1),
	uxctty.c (1.1), uxenv.c (1.1), uxfile.c (1.1), uxfs.c (1.1), uxio.c
	(1.1), uxio.h (1.1), uxproc.c (1.1), uxproc.h (1.1), uxsig.c (1.1),
	uxsock.c (1.1), uxsock.h (1.1), uxterm.c (1.1), uxterm.h (1.1),
	uxtop.c (1.1), uxtop.h (1.1), uxtrap.c (1.1), uxtrap.h (1.1),
	uxtty.c (1.1), uxutil.c (1.1), uxutil.h (1.1), posixtyp.h (1.1),
	prosenv.c (1.1), prosfile.c (1.1), prosfs.c (1.1), prosio.c (1.1),
	prosproc.c (1.1), prosterm.c (1.1), prostty.c (1.1): Initial
	revision

1990-06-20 13:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/ansidecl.h (1.1): Initial revision

1990-06-20 13:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: intercom.c (9.28), interp.c (9.56), interp.h (9.33),
	intrpt.h (1.8), memmag.c (9.44), mul.c (9.29), prename.h (1.4),
	prims.h (9.37), purify.c (9.43), scheme.h (9.32), stack.h (9.28),
	step.c (9.28), storage.c (9.46), sysprim.c (9.34), utils.c (9.45),
	version.h (11.32), x11term.c (1.8), xdebug.c (9.27), zones.h
	(9.24): * Complete redesign of the operating-system interface.	I/O
	is more uniform and is able to take advantage of things like
	sockets, pipes, ptys, etc.  All I/O buffering is moved into the
	runtime system for better performance with Scheme compiler code. 
	Strong knowledge of POSIX.1 should make porting to VMS easy once
	VMS supports POSIX.1.
	
	* Change operating system conditionalizations to standard form
	suggested by POSIX.1.
	
	* Add FSF macros to support ANSI declarations.
	
	* Add dynamic-stack package and obstacks.
	
	* Provide higher-level utilities for parsing command line options.
	
	* Instead of `Back_To_Eval', there is now a procedure
	`abort_to_interpreter' which knows about everything that needs to
	be cleaned up.
	
	* Change names of some macros:
	
		Pop				STACK_POP
		Push				STACK_PUSH
		Push_From			STACK_LOCATIVE_PUSH
		Pop_Into			STACK_LOCATIVE_POP
	(similar)
		Stack_Ref			STACK_REF
		Top_Of_Stack()			STACK_REF(0)
		Simulate_Popping		STACK_LOC
		Simulate_Pushing		STACK_LOC (similar)
		Stack_Distance			STACK_LOCATIVE_DIFFERENCE
	(similar)
		Pop_Primitive_Frame		POP_PRIMITIVE_FRAME
		Metering_Apply_Primitive	PRIMITIVE_APPLY
		Export_Regs_Before_Primitive   
	EXPORT_REGS_BEFORE_PRIMITIVE
		Import_Regs_After_Primitive	IMPORT_REGS_AFTER_PRIMITIVE
	
	* Sun assembler can't handle a constant used in "cmpaux-mc68k.m4",
	so provide an option to rewrite that instruction as two
	instructions.
	
	* Some compilers won't cast a function to an integer, so kludge
	around it by mis-declaring the external function as an integer,
	taking it the integer's address, and casting THAT to an integer.
	
	* Move critical section code and termination code to their own
	files.

1990-06-20 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.38), bchdmp.c (9.50), bchgcc.h (9.37),
	bchmmg.c (9.54), bchpur.c (9.50), bkpt.h (9.28), boot.c (9.61),
	cmpauxmd/mc68k.m4 (1.13), cmpintmd/mc68k.h (1.14), cmpint.c (1.28),
	cmpint.h (10.4), config.h (9.55), const.h (9.36), daemon.c (9.28),
	debug.c (9.35), default.h (9.33), dmpwrld.c (9.31), extern.h
	(9.36), fasdump.c (9.48), fasl.h (9.31), fasload.c (9.53), fhooks.c
	(9.32), futures.h (9.27), generic.c (9.34), history.h (9.26),
	hooks.c (9.39): * Complete redesign of the operating-system
	interface.  I/O is more uniform and is able to take advantage of
	things like sockets, pipes, ptys, etc.	All I/O buffering is moved
	into the runtime system for better performance with Scheme compiler
	code.  Strong knowledge of POSIX.1 should make porting to VMS easy
	once VMS supports POSIX.1.
	
	* Change operating system conditionalizations to standard form
	suggested by POSIX.1.
	
	* Add FSF macros to support ANSI declarations.
	
	* Add dynamic-stack package and obstacks.
	
	* Provide higher-level utilities for parsing command line options.
	
	* Instead of `Back_To_Eval', there is now a procedure
	`abort_to_interpreter' which knows about everything that needs to
	be cleaned up.
	
	* Change names of some macros:
	
		Pop				STACK_POP
		Push				STACK_PUSH
		Push_From			STACK_LOCATIVE_PUSH
		Pop_Into			STACK_LOCATIVE_POP
	(similar)
		Stack_Ref			STACK_REF
		Top_Of_Stack()			STACK_REF(0)
		Simulate_Popping		STACK_LOC
		Simulate_Pushing		STACK_LOC (similar)
		Stack_Distance			STACK_LOCATIVE_DIFFERENCE
	(similar)
		Pop_Primitive_Frame		POP_PRIMITIVE_FRAME
		Metering_Apply_Primitive	PRIMITIVE_APPLY
		Export_Regs_Before_Primitive   
	EXPORT_REGS_BEFORE_PRIMITIVE
		Import_Regs_After_Primitive	IMPORT_REGS_AFTER_PRIMITIVE
	
	* Sun assembler can't handle a constant used in "cmpaux-mc68k.m4",
	so provide an option to rewrite that instruction as two
	instructions.
	
	* Some compilers won't cast a function to an integer, so kludge
	around it by mis-declaring the external function as an integer,
	taking it the integer's address, and casting THAT to an integer.
	
	* Move critical section code and termination code to their own
	files.

1990-06-14 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bignum.c (9.32): Fix a bug in
	bignum_destructive_scale_up by which the most significant digit of
	a bignum was not being scaled.

1990-06-14 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.44): Fix more bugs in bit_string_to_bignum.

1990-06-14 13:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bitstr.c (9.43), version.h (11.31.1.1): Fix bug in
	bit_string_to_bignum by which the top digit was not masked
	according to the number of valid bits.	Thus the result was larger
	under certain conditions.

1990-06-13 21:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.8): Not all uses of lambda-list had been
	updated to pass four parameters instead of three.

1990-06-13 20:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.5): Add sequence-immediate-actions that
	does not flatten the structure.

1990-06-13 20:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: unsyn.scm (14.7), runtime.pkg (14.66.1.1): Add a
	unsyntaxer:macroize? flag to the unsyntaxer to get a more
	"truthfull" result.

1990-06-13 20:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.81): Add a unsyntaxer:macroize? flag to
	get a more "truthfull" result.

1990-06-13 18:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: pardec.scm (4.3), make.scm (4.13): Allow specification of
	arity for the INTEGRATE-PRIMITIVE-PROCEDURES declaration.

1990-06-13 17:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gpio.c (1.3): Add missing pair of parenthesis (how come
	gcc did not catch it?).

1990-06-13 16:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gpio.c (1.2): Add new style primitives (multiple byte
	transfers, string based).  Add control primitives.  Add locking of
	the interface.

1990-06-12 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gpio.c (1.1): Initial revision

1990-06-11 12:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/xform.scm (4.3): Fix transform/definition to allow non-scanned
	top-level definitions.	The arise due to in-package.

1990-06-11 12:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/make.scm (4.12): Fix transform/definition in xform.scm to
	allow non-scanned top-level definitions.  The arise due to
	in-package.

1990-06-07 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.13): Rename references to primitives
	that have been renamed in the microcode.

1990-06-07 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.29), compiler/base/crsend.scm (1.4),
	sf/subst.scm (4.6), runtime/global.scm (14.15), runtime/udata.scm
	(14.13): Rename references to primitives that have been renamed in
	the microcode.

1990-06-04 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: load.scm (14.15), load.scm (14.16): When loading a .scm
	file, fetch the repl environment and syntax table at the beginning
	of the load rather than for each expression in the file.  This
	means that changing the repl environment or syntax table in the
	file will have no effect on the load.

1990-05-16 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.31), version.h (11.31): In bignum
	division when doing add-back because initial guess was too large:
	if the add-back causes a carry it must be discarded.

1990-05-10 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.11): `in-package' must not scan out the
	defines in its body.

1990-05-07 00:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: lapgen.scm (1.1), machin.scm (1.1),
	rgspcm.scm (1.1), rules1.scm (1.1), rules2.scm (1.1), rules3.scm
	(1.1), rules4.scm (1.1), rulfix.scm (1.1), rulflo.scm (1.1),
	rulrew.scm (1.1): Initial revision

1990-05-07 00:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: dassm1.scm (1.1), dassm2.scm (1.1),
	dassm3.scm (1.1), decls.scm (1.1), inerly.scm (1.1), insmac.scm
	(1.1), instr1.scm (1.1), instr2a.scm (1.1), instr2b.scm (1.1),
	instr3.scm (1.1): Initial revision

1990-05-07 00:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: make.scm-big (4.65), make.scm-little
	(4.65): [no log message]

1990-05-07 00:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/mips/: mips.scm (1.1), assmd.scm (1.1),
	coerce.scm (1.1), compiler.cbf (1.1), compiler.pkg (1.1),
	compiler.sf-big (1.1), compiler.sf-little (1.1): Initial revision

1990-05-05 20:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/subfre.scm (1.7): Fix one more problem in the
	interaction between multiclosures and subproblem free variables.

1990-05-04 11:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/subfre.scm (1.6): Fix a bug in walk-procedure that
	manifested itself in sf/subst.	The free variables in closures are
	determined exclusively by the closure block, not by the free
	variables of the procedure block.

1990-05-03 11:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/: rdflow.scm (1.2), rinvex.scm (1.4): Add support
	for multi-closures, ie. closures with multiple (or no) entry points
	that share the environment "frame".

1990-05-03 11:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.pkg (1.30), dassm2.scm
	(4.17), decls.scm (4.27), lapgen.scm (4.32), machin.scm (4.22),
	make.scm-68040 (4.73), rules1.scm (4.33), rules3.scm (4.24),
	rules4.scm (4.12), rulrew.scm (1.3): Add support for
	multi-closures, ie. closures with multiple (or no) entry points
	that share the environment "frame".

1990-05-03 11:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (4.15): Add support for
	multi-closures, ie. closures with multiple (or no) entry points
	that share the environment "frame".

1990-05-03 11:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: fgopt/blktyp.scm (4.15), fgopt/closan.scm (4.15),
	fgopt/envopt.scm (1.7), fgopt/offset.scm (4.7), fgopt/sideff.scm
	(1.7), fgopt/subfre.scm (1.5), fgopt/varind.scm (1.4),
	rtlbase/rtlcon.scm (4.21), rtlbase/rtlexp.scm (4.16),
	rtlbase/rtlty1.scm (4.17), rtlbase/rtlty2.scm (4.9),
	rtlgen/fndblk.scm (4.11), rtlgen/fndvar.scm (1.5),
	rtlgen/opncod.scm (4.37), rtlgen/rgcomb.scm (4.15),
	rtlgen/rgproc.scm (4.12), rtlgen/rgrval.scm (4.16): Add support for
	multi-closures, ie. closures with multiple (or no) entry points
	that share the environment "frame".

1990-05-03 11:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.26): Change generate/sequence to
	process forms in order (left to right).  In this way, compilation
	by procedures compiles the procedures in the order in which they
	appear in the file, producing predictable output.

1990-05-03 11:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: blocks.scm (4.13), infnew.scm (4.8), lvalue.scm
	(4.18), proced.scm (4.16), switch.scm (4.15): Add support for
	multi-closures, ie. closures with multiple (or no) entry points
	that share the environment "frame".

1990-05-03 11:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.28): Fix the lap->code example. 
	procedure-variables are now cleaned up after
	phase/setup-block-types rather than phase/identify-closure-limits,
	since the multi-closure code in phase/setup-block-types needs this
	information.

1990-05-03 10:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/symtab.scm (1.44): Increase the size of symbol
	tables.  Symbol tables should be growing (re-hashing) hash tables,
	but are currently fixed.  The previous value was too small for
	large compilation units.  The current one may be too large for
	small units, but oh well.

1990-04-27 19:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.41): One more step of making file-touch
	work better in a distributed environment.  Some changes for NFS
	(addition of special handling of ESTALE), and better handling of
	some other conditions.

1990-04-22 22:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: hppa.h (1.12), mips.h (1.3): Add
	ADJUST_CLOSURE_AT_CALL.

1990-04-22 22:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.12): Remove the interrupt
	multiclosure register setup and special entry point.

1990-04-22 22:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.13): Add ADJUST_CLOSURE_AT_CALL. 
	Remove the interrupt multiclosure register setup.

1990-04-22 22:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.27): Eliminate
	comutil_interrupt_multiclosure.  It was not correct.  Modify
	comutil_interrupt_closure to accomodate closures in machines where
	the environment pointer does not match the entry point.  This is
	done using a new macro ADJUST_CLOSURE_AT_CALL from cmpint-xxx.h

1990-04-21 13:18  Jim Miller <jmiller@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.26): Fixed bug in comutil_interrupt_dlink
	(passing 2 instead of 3 arguments to compiler_interrupt_common).

1990-04-21 12:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.16), udata.scm (14.12), infutl.scm
	(1.16), runtime.pkg (14.66): New information in closure dbg blocks
	to accomodate multiclosures and make the accessors/mutators
	architecture independent.

1990-04-21 11:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.80): New information in closure dbg
	blocks to accomodate multiclosures and make the accessors/mutators
	architecture independent.

1990-04-19 15:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.11): - Change "link.l" into "link"
	because Asmcvt does not understand it.	- Change "jmp(%a0)" into
	"jmp	   (%a0)" because Asmcvt does not parse it correctly.

1990-04-17 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.30): [no log message]

1990-04-17 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.40): Eliminate (now incorrect) declarations
	for various procedures defined in the C library.

1990-04-17 17:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.37), bintopsb.c (9.45), psbtobin.c
	(9.41): Eliminate (now incorrect) declarations for various
	procedures defined in the C library.

1990-04-17 17:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.12): Fix conversion of Scheme argument to
	fopen.

1990-04-13 10:14  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/version.scm (14.79): Added LOAD-LATEST and FASLOAD-LATEST
	to load the most recently modified of the LOAD/DEFAULT-TYPES (or
	FASLOAD/DEFAULT-TYPES). Also added a
	LOAD/DEFAULT-FIND-PATHNAME-WITH-TYPE variable which LOAD and
	FASLOAD will use (indirectly) to determine what file type to load.
	See the rcs log for load.scm for more info.

1990-04-12 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.13): Don't treat `restore-value' frame as
	a subproblem.

1990-04-12 18:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.39): Rewrite file_touch to use fstat after
	open rather than stat and then open.  This seems to reduce the
	problems with stale NFS handles, and should affect nothing else.

1990-04-12 18:50  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/load.scm (14.14): Oops, forgot some initializations for
	the LOAD-LATEST stuff. See the log for the last version for more
	info.

1990-04-12 18:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.29): Add multi closure interrupt support.
	 Merge in some MIPS changes (bug fix to bitstrings, and
	file_touch).

1990-04-12 18:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.25): Add comutil_interrupt_multiclosure.

1990-04-12 18:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/mc68k.h (1.12), cmpauxmd/mc68k.m4 (1.10):
	Add asm_interrupt_multiclosure.

1990-04-12 17:53  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.65), load.scm (14.13): Added
	LOAD-LATEST and FASLOAD-LATEST to load the most recently modified
	version among the LOAD/DEFAULT-TYPES.
	
	Added a variable LOAD/DEFAULT-FIND-PATHNAME-WITH-TYPE which may be
	set to a procedure which tells load how to decide which file type
	to use.  The procedure accepts a pathname and a list of file type
	strings (usually this will be LOAD/DEFAULT-TYPES) and should return
	the complete pathname for load to use. 

1990-04-12 17:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.h (1.7): Fix a bug in
	BIT_STRING_INDEX_PAIR_TO_INDEX for machines with vax byte order.

1990-04-12 17:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.54): Bump the default space parameters on
	the MIPS when there is compiler support.

1990-04-10 16:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.28): Change `file-open-channel' primitive
	to permit opening a file in append mode.  The second argument to
	this primitive is now interpreted as follows:
	
	#F	=> open for input #T	=> open for output else => open for
	append

1990-04-10 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.5), runtime.pkg (14.64), version.scm
	(14.78): Add optional second argument to `open-output-file': if
	supplied and not false, the file is opened for append.

1990-04-10 12:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numint.scm (1.2): Rename local variable to prevent
	confusion during debugging.

1990-04-10 11:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.10): Detect and signal error for `(let 3
	4)'.

1990-04-10 11:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.12): Force top-level syntax definitions to
	be local to the file in which they appear.

1990-04-10 11:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: make.scm (4.11), toplev.scm (4.7): Force top-level syntax
	definitions to be local to the file in which they appear.

1990-04-09 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/instr2.scm (1.2): Fix broken movb and
	movib instruction definitions.

1990-04-09 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rules3.scm (4.24): Fix broken
	qualifier.

1990-04-09 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.30): Fix definition of
	type-scale-factor.

1990-04-09 11:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.12): Fix macro definition from last change.

1990-04-09 10:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.52), cmpgc.h (1.11): Add code to flush
	the I-cache at the right times: After storing an execute cache
	entry, and after major relocations (GC and disk-restore).

1990-04-09 10:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/mips.h (1.2), memmag.c (9.43), bchmmg.c
	(9.53): Add code to flush the I-cache at the right times: After
	storing an execute cache entry, and after major relocations (GC and
	disk-restore).

1990-04-04 15:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/xcbfdir.scm (1.2): Remove check window by using
	file-touch, that returns #t or #f depending on whether the file
	existed or not.

1990-04-04 14:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.38): Change file-touch to return #t if the
	file did not exist previously and was succesfully created, #f if it
	existed, and was succesfully modified, and an error string
	otherwise.

1990-04-04 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.8): Change file-touch to return #t if the
	file did not exist previously and was succesfully created, #f if it
	existed, and was succesfully modified, and an error string
	otherwise.

1990-04-04 14:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.7): Change file-touch to give an error only
	if the result of the primitive is an error string.

1990-04-03 19:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/insmac.scm (1.126): Allow (pseudo)
	instructions to expand into no code.

1990-04-03 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr3.scm (1.17): Make BSR to the
	following instruction cause an error at assembly time.

1990-04-03 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/linear.scm (4.11): Prevent the diamond rule for
	pblocks from generating the same block on both branches, the
	assembler will then complain because of duplicate labels.

1990-04-03 15:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.42): Forgot to change > to != in last
	change.

1990-04-03 15:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.41): Eliminate dependency on byte order
	from BIT-SUBSTRING-FIND-NEXT-SET-BIT.  Use INC_BIT_STR_PTR rather
	than pre-decrementing.

1990-04-03 02:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (4.72): Fix
	load-interface-args! which was clearing the wrong registers.
	
	Fix rulrew which was constant folding object->type and
	object->datum incorrectly. 
	
	Improve code sequences generated for inline-coded generic
	arithmetic in reduction position when arguments are constant.
	
	Make compiler declarations propagate when compile-by-procedures? is
	on.

1990-04-03 02:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.29): Fix
	load-interface-args! which was clearing the wrong registers.

1990-04-03 02:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.36): Patch inline code so that
	inliners that call out of line will see constant operands rather
	than stack locations.

1990-04-03 00:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/rulrew.scm (1.2), spectrum/rulrew.scm
	(1.2): Fix broken rewrite rules by which generic arithmetic with a
	constant argument was always calling off-line.

1990-04-03 00:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/toplev.scm (4.27), fggen/canon.scm (1.8),
	fggen/fggen.scm (4.25): Make top level declarations propagate when
	compile-by-procedures is turned on.

1990-04-03 00:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.72): Fix bugs in
	rulrew by which generic arithmetic with a constant argument was
	always calling off-line.
	
	Make top level declarations propagate when compile-by-procedures is
	turned on.

1990-04-02 20:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.10): Add typedef of format_word when not
	HAS_COMPILER_SUPPORT.  It should never be used, but the macro stubs
	should guarantee this.

1990-04-02 11:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (4.71): Update to match 68k.
	
	lap:make-unconditional-branch returns an instruction sequence
	rather than a single instruction because on machines with branch
	delay slots and no nullification, a NOP must appear as well.
	
	Comment out uses of expt, since compiler declarations don't work
	with compile-by-procedures?
	
	Add a test on endianness to expand-fields so that the same macros
	can be used for all RISC machines.

1990-04-02 11:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/insmac.scm (1.2): Add a test on
	endianness to expand-fields so that the same macros can be used for
	all RISC machines.

1990-04-02 11:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: machin.scm (4.21), rulfix.scm
	(4.34): Comment out uses of expt, since compiler declarations don't
	work with compile-by-procedures?

1990-04-02 11:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.28):
	lap:make-unconditional-branch returns an instruction sequence
	rather than a single instruction because on machines with branch
	delay slots and no nullification, a NOP must appear as well.
	
	Comment out uses of expt, since compiler declarations don't work
	with compile-by-procedures?

1990-04-01 18:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.71): Major change:
	
	- New drifting/undrifting code and closure analysis.
	
	Minor changes:
	
	- lap:make-uncoditional-branch now returns a sequence of
	instructions, rather than a single instruction.
	
	- Uses of `expt' in machin and lapgen have temporarily been
	commented out because the `usual-definition' declaration does not
	work when `compile-by-procedures?' is turned on.
	
	- letrec-value now gives only a warning when binding a trivial
	closure.
	
	- close-procedure! in blktyp now only gives a warning when a
	non-trivial closure becomes trivial.

1990-04-01 18:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.21): Substitute constants
	for expressions computed with `expt'.  The expt constant-folding
	declaration is currently ignored (because of compile-by-procedures?
	breaking compiler declarations) and since the values are
	integrated, they were being computed in a zillion places.

1990-04-01 18:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/linear.scm (4.10): lap:make-unconditional-branch
	now returns a sequence rather than a single instructions.  On
	machines with branch delay slots and no nullification, a nop must
	be returned in addition to the branch instruction.

1990-04-01 18:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.31):
	lap:make-unconditional-branch now returns a sequence rather than a
	single instructions.  On machines with branch delay slots and no
	nullification, a nop must be returned in addition to the branch
	instruction.

1990-04-01 18:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/rgproc.scm (4.11): letrec-value no longer errors
	if a binding is a trivial closure.  There are perfectly legal
	programs where this happens, although they are written in poor
	style.	It now just gives a warning.

1990-04-01 18:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.14): Nth revision of this code.
	
	Improve the closing and undrifting code significantly.	Many of the
	procedures that were (needlessly) closed by the previous version
	are no longer closed.
	
	Undrifting constraints are computed more precisely.
	
	Additionally, closing checks connectivity of the environment chain
	(generating undrifting constraints as necessary) to ensure that all
	the free variables captured are in fact available, and it also
	ensures that disowned children (spliced out by the drifting code)
	are undrifted if they depend on the closed-over variables.
	
	One potential non-improvement introduced:  Undrifting any procedure
	forces its compatibility class to close, in order to avoid a harder
	analysis.  This is a cop-out for now.

1990-04-01 18:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/envopt.scm (1.6): Get rid of funny drifting rules.
	 Let-like procedures and others that were previously not allowed to
	drift are now allowed to.  The undrifting code takes care of them.

1990-04-01 18:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/blktyp.scm (4.14): It's OK for a non-trivial
	closure to become trivial, not the other way around.  The previous
	error is now split into a warning (in the unexpected but bad case),
	and an error (in the bad case).

1990-04-01 16:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.52), bchpur.c (9.49): Fix bch system to
	run on machines with floating alignment.

1990-04-01 16:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcl.c (9.40): Fix bch system to run on machines with
	floating alignment.

1990-04-01 16:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.49), bchgcc.h (9.36): Fix bch system to
	run on machines with floating alignment.

1990-04-01 16:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mips.m4 (1.1): Initial revision

1990-04-01 16:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mips.h (1.1): Initial revision

1990-04-01 16:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.53): Add MIPS compiler support.

1990-03-28 17:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/: xcbfdir.scm (1.1), comfiles.scm (1.1): Initial
	revision

1990-03-28 01:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/: fndvar.scm (1.4), rgstmt.scm (4.14): Add new
	method for finding variable that is used by stack-overwrite
	mechanism.  This new method does not use any tricks like variable
	indirection to find the value, but produces a locative for that
	particular variable.

1990-03-28 01:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.13): Undrifting constraints must
	propagate transitively to free callers.  Undrifted procedures must
	be re-analyzed for Exporting.

1990-03-26 19:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (4.70): Move switch.scm back
	to compiler/base, so it can be shared.	Update to match 68k
	version.

1990-03-26 18:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.pkg (1.28): Add
	compiler:noisy? Move switch.scm back to compiler/base, so it can be
	shared.  Update to match 68k version.

1990-03-26 18:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: switch.scm (4.14), toplev.scm (4.26): Add
	compiler:noisy?

1990-03-26 18:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.29): Add compiler:noisy?

1990-03-26 18:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/decls.scm (4.26): Move switch.scm back
	to compiler/base, so it can be shared.	Update to match 68k
	version.

1990-03-26 18:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.sf (1.12): Move switch.scm
	back to compiler/base, so it can be shared.

1990-03-26 15:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/make.scm (4.10): Add sf:noisy? flag, and syntax&integrate
	global procedure.

1990-03-26 15:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: toplev.scm (4.6), sf.pkg (4.6): Add sf:noisy? flag, and
	syntax&integrate global procedure.

1990-03-26 14:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gcstat.scm (14.3): Modify gc-statistic/meter so that
	gcnote will not be confused.

1990-03-26 14:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.63), gcstat.scm (14.2): Add
	gc-timestamp for data structures that need to be updated after gcs,
	but not necessarily after each gc.

1990-03-24 14:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/process.scm (1.3): Add arities to primitive definitions
	so that the file will syntax and load in systems with no process
	primitives.

1990-03-24 08:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulfix.scm (4.33): Fix
	register*constant methods for plus-fixnum and minus-fixnum.  When
	adding 0 with overflow tests, they were not loading the target.

1990-03-20 21:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fgopt/closan.scm (4.12), fgopt/sideff.scm (1.6),
	rtlgen/rgstmt.scm (4.13), machines/bobcat/make.scm-68040 (4.70):
	When accessing `block-procedure', make sure it is a procedure
	before using it as such; it might be an expression instead.

1990-03-16 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/process.scm (1.2): Fix unbound variable in
	`delete-process'.  The `process/to-port' is an output port, not an
	input port, so use the appropriate operation to close it.  Also do
	some slight reformatting.

1990-03-14 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.69): [no log message]

1990-03-14 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm3.scm (4.8): In
	`decode-ordinary-floating-instruction', always specify at least two
	operands in the result, because the assembler does not understand
	the one-operand syntax.

1990-03-14 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.30): In
	`two-arg-register-operation', don't delete reused alias of first
	operand until the second operand's reference has been computed. 
	This prevents the reused alias from being mistakenly re-allocated
	for use by the second operand.

1990-03-12 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.68): [no log message]

1990-03-12 19:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.29): Conditionalize
	floating-point register load instructions to give source type if
	loading from memory.

1990-03-12 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.28): Conditionalize binary
	floating-point open-coded operations on whether the source is a
	register or not.

1990-03-12 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (4.27): Remove duplicate
	entry for fp6 from the list of initially available registers.

1990-03-05 16:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.27): Add ^B ^X ^U ^G to the ^C handler.

1990-03-02 15:48  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/version.h (11.26): Added subprocess support.

1990-03-02 15:24  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/version.scm (14.77): Added subprocess support.

1990-02-27 14:53  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.62): Added support for subprocesses.

1990-02-27 14:45  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/process.scm (1.1): Initial revision

1990-02-27 14:44  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/make.scm (14.21): Added support for subprocesses.

1990-02-27 14:39  Mark Friedman <markf@zurich.ai.mit.edu>

	* runtime/io.scm (14.4): Added support for subprocesses to
	OPEN-CHANNEL-WRAPPER.

1990-02-25 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.67): [no log message]

1990-02-25 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.76): [no log message]

1990-02-23 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.35): Open-code vector-8b ref and
	set operations.

1990-02-23 16:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.27): Don't use arithmetic
	right shift for division.

1990-02-23 13:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.14): Eliminate some potential name
	conflicts in the expansion of a `define-structure' macro.

1990-02-21 18:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.13): Add more handlers for
	INTERNAL-APPLY-VAL types.  Somehow some were missed last time
	around.

1990-02-20 11:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.9): Make debugger evaluation commands
	print out more like normal evaluations in a rep-loop.

1990-02-20 10:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gensym.scm (14.3): Allow strings as arguments to
	generate-uninterned-symbol.

1990-02-13 20:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.12): Add definition of `alist?' that detects
	circularity.

1990-02-13 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/list.scm (14.11): Fix definition of list? to terminate
	even in the presence of circular structure, as required by the
	standard.

1990-02-13 11:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fasload.c (9.51): Initialize
	`Prev_Restore_History_Stacklet' to NULL rather than SHARP_F.

1990-02-13 11:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: extern.c (9.30), hooks.c (9.38): Add \n\ to newlines
	in comments.

1990-02-12 18:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/flonum.c (9.34): Fix minor bug in last change.

1990-02-11 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.30), fasload.c (9.50), flonum.c (9.33):
	Changes from JMiller that are needed to get this stuff running on
	the DECStation 3100.

1990-02-10 18:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: option.scm (14.7), runtime.pkg (14.61), version.scm
	(14.75): Add new hash-table abstraction; this is loaded by
	
		(load-option 'hash-table)
	
	This abstraction is very similar to that of Common Lisp.

1990-02-10 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hashtb.scm (1.1): Initial revision

1990-02-09 14:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: scode.scm (14.9), runtime.pkg (14.60): Define
	`symbol-hash-mod'.

1990-02-07 19:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/mul.c (9.28): Add changes to support gcc on the vax.

1990-02-07 19:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.59): Fix cold-load problems.

1990-02-07 19:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: record.scm (1.4), runtime.pkg (14.58), make.scm
	(14.20): Fix cold-load problems.

1990-02-07 18:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.74): [no log message]

1990-02-07 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.3): Implement new record proposal.

1990-02-06 17:04  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.11): [no log message]

1990-02-06 11:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.9): Changes by JMiller to make it
	work under HP cc and Sun cc (PCC?).  Structure returns are
	different for those two compilers and GCC.

1990-02-02 13:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn2.scm (1.18), back/regmap.scm (4.10),
	base/ctypes.scm (4.15), base/debug.scm (4.13), base/lvalue.scm
	(4.17), fggen/fggen.scm (4.24), fgopt/order.scm (4.14),
	fgopt/reuse.scm (1.5), machines/bobcat/compiler.pkg (1.28),
	machines/bobcat/decls.scm (4.26), machines/bobcat/make.scm-68040
	(4.66), rtlbase/regset.scm (1.3), rtlgen/rgproc.scm (4.10),
	rtlgen/rgstmt.scm (4.12): * Add new operations to register
	allocator that determine whether allocation will cause unloading or
	spilling of registers.	Change the operation
	`standard-register-reference' to use these operations when deciding
	whether or not to refer to a register's home rather than allocation
	a new alias for it.
	
	* For an inline-coded procedure (e.g. LET), create an association
	between each parameter of that procedure and the FG node that
	supplies that parameter's value in the call.  This association is
	used to optimize the initialization of variables that will be
	stored in cells: the cell for such a variable is created during the
	call rather than after it.  Previously, a stack-allocated parameter
	was initialized by pushing its initial value, and then the contents
	of the stack location were removed, placed in a new cell, and the
	cell stored back into the stack location.  Now, the parameter's
	value is wrapped in a cell before being pushed.
	
	* RTL output files have been changed to print uninterned symbols by
	name.
	
	* The code generated for assignments in value position has been
	slightly changed to guarantee the correct order of events. 
	Previously, the order of the computation of the new value and the
	fetching of the old value was indeterminate; now it is guaranteed
	that the new value is computed before the old value is fetched.
	
	* The bit-string representation of register sets has been restored.
	 This has a time penalty for small register sets, but guarantees
	that access to the register sets is independent of the number of
	registers.  Certain programs with large numbers of registers were
	being unreasonably penalized by the list-based representation. 
	Also, the dependencies for the file "rtlbase/regset" were adjusted
	to reflect the files that actually refer to it.
	
	* The RTL generated for cached variable assignments has been
	changed to precompute the value of the assignment and store it in a
	pseudo register.  Previously, the code was replicated.

1990-02-02 12:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.14): New definition of `complex:acos'
	preserves more precision and is more efficient.  This one also does
	not introduce inexact real or imaginary zero components in certain
	(important) boundary cases, such as:
	
	(acos 2) ;Value: 0.+1.3169578969248166i

1990-01-31 00:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.25), fasdump.c (9.47): Fix bug in
	fasdump by which zero length files were left around when the
	fasdump failed.

1990-01-30 21:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/load.scm (14.11): Fix bug in load/internal by which empty
	files caused an error in the fasl check.  peek-char returned an
	eof-object, and char->ascii barfed on that.
	
	Now, if the file is empty, it is loaded as a source file, whatever
	that means.

1990-01-30 09:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.55): Fix bug in Prepare_Apply_Interrupt
	noticed after last set of changes (addition of
	RC_INTERNAL_APPLY_VAL).

1990-01-30 09:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.24): Fix bug in Prepare_Apply_Interrupt
	noticed after last set of changes (addition of
	RC_INTERNAL_APPLY_VAL).

1990-01-29 17:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.12), framex.scm (14.10), uerror.scm
	(14.12), version.scm (14.73): Add the INTERNAL-APPLY-VAL return
	code.

1990-01-29 17:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.54): Add the INTERNAL-APPLY-VAL return
	code.  It replaces the procedure with the current value of Val and
	then proceeds to apply.  Apply errors use this return code rather
	than INTERNAL-APPLY to restart.  Under normal operation there is no
	change since a POP-RETURN-ERROR return code (which restores Val) is
	pushed as well, so to make use of this feature the top few frames
	of the stack must be eliminated before invoking the continuation.

1990-01-29 17:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: returns.h (9.37), version.h (11.23): Add the
	INTERNAL-APPLY-VAL return code.

1990-01-29 16:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: compiler.sf (1.11), compiler.pkg
	(1.27): Add the INTERNAL-APPLY-VAL return code.

1990-01-29 16:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/compiler.cbf (1.1): Initial revision

1990-01-29 16:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.51): Add the INTERNAL-APPLY-VAL return
	code.

1990-01-25 11:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulrew.scm (1.1): Initial revision

1990-01-25 11:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/rulflo.scm (4.32): New compiler port.

1990-01-25 11:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: rules3.scm (4.23), rules4.scm
	(4.11), rulfix.scm (4.32): New compiler port.

1990-01-25 11:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: lapgen.scm (4.26), rgspcm.scm (4.1),
	rules1.scm (4.32), rules2.scm (4.12): New compiler port.

1990-01-25 11:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: instr1.scm (1.1), instr2.scm (1.1),
	instr3.scm (1.1): Initial revision

1990-01-25 11:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: dassm3.scm (1.1), inerly.scm (1.1),
	insmac.scm (1.1): Initial revision

1990-01-25 11:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: dassm1.scm (4.14), dassm2.scm
	(4.16), decls.scm (4.25): New compiler port.

1990-01-25 11:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/: machin.scm (4.20), assmd.scm (1.30),
	coerce.scm (1.5): New compiler port.

1990-01-25 11:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (4.65): New compiler port.

1990-01-24 11:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/savres.scm (14.11): Make setup-image do what the comment
	at the top of the file says when identify is #f.

1990-01-23 17:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseht.scm (4.11): `hash-table-copy', when
	copying the elements in a hash bucket, was copying each element and
	then setting its previous-hash link to that of the original element
	rather than its copy.  Don't entirely understand why this wasn't
	noticed before.

1990-01-23 03:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.22): Conditionalize constant space sizes
	for the Spectrum.  Fix floating alignment bugs.  Fix bchdmp bug.

1990-01-23 03:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.40): Fix floating alignment.

1990-01-23 03:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasdump.c (9.46): Add floating alignment back.

1990-01-22 22:00  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.51): Fix bug by which current_disk_position
	was not reset from the last gc-like operation.	When the files were
	swapped for fasdump, the system might not lseek thinking that the
	pointer into the file was at the correct place while it doesn't. 
	Typical failure would be "Could not read into the scan buffer"
	since the file was shorter than expected.

1990-01-22 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/infnew.scm (4.7), machines/bobcat/compiler.pkg
	(1.27), machines/bobcat/make.scm-68040 (4.65): Make changes to use
	more space-efficient representation for dbg-label objects.  These
	changes require runtime version 14.72 or later.

1990-01-22 18:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: infstr.scm (1.3), version.scm (14.72): Add new
	representation for `dbg-label', that is optimized for minimum space
	consumption.  Make the dbg-label operations generic so that they
	handle both the old and new representations.  By default, the
	constructor makes the old representation.  These changes are
	upwards-compatible for old programs and old versions of the
	compiler.

1990-01-22 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.3): Change `operation/open' to handle #F
	as a result from `starbase-open-device'.

1990-01-22 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/starbase.scm (1.4): Change `operation/open' to handle #F
	as a result from `starbase-open-device'.

1990-01-22 17:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.8): Make gr2 be compile code's val
	register.   Fix trampoline_to_interface.  Fix the number of NOPs
	before hook_jump_table.   Fix the closure code.  Fix various
	comments.

1990-01-22 17:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.11): Fix
	hppa_extract_absolute_address, hppa_store_absolute_address,
	CLOSURE_SKIPPED_CHECK_OFFSET, and various comments.

1990-01-22 17:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.52): Bump the constant space and compiled
	constant space sizes for the spectrum.	Compiled binaries are 50%
	larger than on bobcats.

1990-01-22 14:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.44): Fix typo.  print_a_bignum used &&
	rather than &, causing all sorts of problems.

1990-01-21 22:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.17): Add missing ,@ in
	load-machine-register!

1990-01-21 18:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.21): Fix relocation bug in fasload.c

1990-01-21 18:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.49): Re-check in previous version since
	checked in on spectrum by mistake, using built-in ci, rather than
	locally hacked version.

1990-01-21 13:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.48): Fix bug in fasload by which closures
	and linkage sections were not being relocated correctly on machines
	where datums are not addresses.

1990-01-20 02:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.16): Fix stupid editing mistake.

1990-01-20 02:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gcloop.c (9.34): Add a debugging facility that keeps a
	history of `Scan' and `To' during the GC loop.	Conditionalize this
	and the trap-on-scan/free facility on a new compiler switch,
	`ENABLE_GC_DEBUGGING_FEATURES'.

1990-01-20 02:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/rules4.scm (4.11), back/lapgn2.scm
	(1.15): When forcing something into a specific machine register, as
	is done for interpreter calls, make sure that anything cached in
	that register is saved to a temporary first, if it's not needed.

1990-01-18 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/rulrew.scm (1.1), rtlopt/rdflow.scm
	(1.1), rtlopt/rerite.scm (1.1): Initial revision

1990-01-18 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rinvex.scm (1.3): * Disable early-syntaxing
	mechanism, and change back end to generate LAP instead of assembler
	directives.  The assembler is now responsible for converting the
	LAP to assembler directives.
	
	* Change RTL and LAP output options to cause RTL and LAP files to
	be written as the information is generated.  ".brtl" files are no
	longer generated.
	
	* Add concept of "suffix instructions" to the LAP generator.
	
	* Disassociate per-instruction "dead registers" set from the set of
	registers that need to be deleted after the instruction is
	generated.  This is needed because the LAP generator sometimes
	needs to know which registers are dead _after_ the dead registers
	have been deleted.
	
	* Many of the high-level register allocator operations have been
	generalized so that they work for both machine and pseudo
	registers.  This simplifies the writing of powerful rules in the
	LAP generator.
	
	* The LAP linearizer has been improved to notice certain common
	graph patterns and generate them in a fixed way.  For example, if
	one of the branches of a conditional goes to a block that is a dead
	end, the linearizer will now force the dead-end block to come
	before the other branch; this has the advantage that it usually
	minimizes the branch distance, and prevents that dead-end block
	from being far away from the conditional.
	
	* The value-class abstraction has been generalized to have more
	classes, and the use of this information has been made more uniform
	and complete.
	
	* The cross-compiler now forces the per-procedure compilation
	switch off.
	
	* The `define-rule' macro has been generalized to allow it to be
	used with user-defined rulesets.
	
	* The RTL definition macros have been changed to collect the RTL
	expression names in sets that indicate their type.
	
	* The compiler now treats self-referential top-level definitions as
	static by default.
	
	* New RTL optimization passes perform limited dataflow analysis and
	rewriting of the RTL.  These permit the LAP-generation rules to be
	tuned to more fully take advantage of the target machine's
	instruction set.
	
	* The subproblem free-variable analysis pass has been changed to
	memoize information at every CFG node.	The previous memoization
	scheme had quadratic time complexity for certain programs.
	
	* The RTL expression simplifier has been changed to force the use
	of pseudo registers for all subexpressions, except the right-hand
	side of a pseudo-register assignment.  This guarantees the
	uniformity of the code-generator's output, permitting the
	LAP-generator rules to be reduced to a small minimal set.
	
	* The RTL `unassigned-test' and `true-test' predicate types have
	been replaced by `eq-test' with the appropriate argument.
	
	* The RTL `constant' expression type has been replaced (in many
	instances) by the new `machine-constant' type.	The former is now
	used only when the result is a Scheme object, while the latter is
	used to represent constant fields of words.  A `machine-constant'
	always has an exact integer value.
	
	* The RTL `offset' expression type has been changed so that it no
	longer requires its first argument to be a register; now that may
	be an arbitrary RTL expression.
	
	* The RTL code compressor has been improved to handle many more
	instruction types, and to permit stack-slot reference expressions
	to be moved over stack pushes, adjusting their offsets in the
	process.
	
	* The RTL CSE was not copying its state correctly, and as a result
	was not doing as good a job as possible across certain conditional
	branches.

1990-01-18 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rgraph.scm (4.7), rtlbase/rtlcon.scm (4.20),
	rtlbase/rtlexp.scm (4.15), rtlbase/rtlreg.scm (4.5),
	rtlbase/rtlty1.scm (4.16), rtlbase/rtlty2.scm (4.8),
	rtlbase/valclass.scm (1.2), rtlgen/opncod.scm (4.34),
	rtlgen/rgrval.scm (4.15), rtlgen/rgstmt.scm (4.11),
	rtlopt/rcompr.scm (1.10), rtlopt/rcse1.scm (4.20), rtlopt/rcse2.scm
	(4.13), rtlopt/rcseep.scm (4.6), rtlopt/rcseht.scm (4.10): *
	Disable early-syntaxing mechanism, and change back end to generate
	LAP instead of assembler directives.  The assembler is now
	responsible for converting the LAP to assembler directives.
	
	* Change RTL and LAP output options to cause RTL and LAP files to
	be written as the information is generated.  ".brtl" files are no
	longer generated.
	
	* Add concept of "suffix instructions" to the LAP generator.
	
	* Disassociate per-instruction "dead registers" set from the set of
	registers that need to be deleted after the instruction is
	generated.  This is needed because the LAP generator sometimes
	needs to know which registers are dead _after_ the dead registers
	have been deleted.
	
	* Many of the high-level register allocator operations have been
	generalized so that they work for both machine and pseudo
	registers.  This simplifies the writing of powerful rules in the
	LAP generator.
	
	* The LAP linearizer has been improved to notice certain common
	graph patterns and generate them in a fixed way.  For example, if
	one of the branches of a conditional goes to a block that is a dead
	end, the linearizer will now force the dead-end block to come
	before the other branch; this has the advantage that it usually
	minimizes the branch distance, and prevents that dead-end block
	from being far away from the conditional.
	
	* The value-class abstraction has been generalized to have more
	classes, and the use of this information has been made more uniform
	and complete.
	
	* The cross-compiler now forces the per-procedure compilation
	switch off.
	
	* The `define-rule' macro has been generalized to allow it to be
	used with user-defined rulesets.
	
	* The RTL definition macros have been changed to collect the RTL
	expression names in sets that indicate their type.
	
	* The compiler now treats self-referential top-level definitions as
	static by default.
	
	* New RTL optimization passes perform limited dataflow analysis and
	rewriting of the RTL.  These permit the LAP-generation rules to be
	tuned to more fully take advantage of the target machine's
	instruction set.
	
	* The subproblem free-variable analysis pass has been changed to
	memoize information at every CFG node.	The previous memoization
	scheme had quadratic time complexity for certain programs.
	
	* The RTL expression simplifier has been changed to force the use
	of pseudo registers for all subexpressions, except the right-hand
	side of a pseudo-register assignment.  This guarantees the
	uniformity of the code-generator's output, permitting the
	LAP-generator rules to be reduced to a small minimal set.
	
	* The RTL `unassigned-test' and `true-test' predicate types have
	been replaced by `eq-test' with the appropriate argument.
	
	* The RTL `constant' expression type has been replaced (in many
	instances) by the new `machine-constant' type.	The former is now
	used only when the result is a Scheme object, while the latter is
	used to represent constant fields of words.  A `machine-constant'
	always has an exact integer value.
	
	* The RTL `offset' expression type has been changed so that it no
	longer requires its first argument to be a register; now that may
	be an arbitrary RTL expression.
	
	* The RTL code compressor has been improved to handle many more
	instruction types, and to permit stack-slot reference expressions
	to be moved over stack pushes, adjusting their offsets in the
	process.
	
	* The RTL CSE was not copying its state correctly, and as a result
	was not doing as good a job as possible across certain conditional
	branches.

1990-01-18 17:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/bittop.scm (1.12), back/bitutl.scm (1.4),
	back/insseq.scm (4.3), back/lapgn1.scm (4.9), back/lapgn2.scm
	(1.14), back/linear.scm (4.9), back/regmap.scm (4.9),
	back/syntax.scm (1.25), base/crsend.scm (1.3), base/crstop.scm
	(1.6), base/debug.scm (4.12), base/macros.scm (4.10),
	base/switch.scm (4.13), base/toplev.scm (4.25),
	machines/bobcat/compiler.pkg (1.26), machines/bobcat/compiler.sf
	(1.12), machines/bobcat/decls.scm (4.25),
	machines/bobcat/lapgen.scm (4.26), machines/bobcat/machin.scm
	(4.20), machines/bobcat/make.scm-68040 (4.64),
	machines/bobcat/rules1.scm (4.32), machines/bobcat/rules2.scm
	(4.12), machines/bobcat/rules3.scm (4.23),
	machines/bobcat/rules4.scm (4.10), fgopt/subfre.scm (1.4): *
	Disable early-syntaxing mechanism, and change back end to generate
	LAP instead of assembler directives.  The assembler is now
	responsible for converting the LAP to assembler directives.
	
	* Change RTL and LAP output options to cause RTL and LAP files to
	be written as the information is generated.  ".brtl" files are no
	longer generated.
	
	* Add concept of "suffix instructions" to the LAP generator.
	
	* Disassociate per-instruction "dead registers" set from the set of
	registers that need to be deleted after the instruction is
	generated.  This is needed because the LAP generator sometimes
	needs to know which registers are dead _after_ the dead registers
	have been deleted.
	
	* Many of the high-level register allocator operations have been
	generalized so that they work for both machine and pseudo
	registers.  This simplifies the writing of powerful rules in the
	LAP generator.
	
	* The LAP linearizer has been improved to notice certain common
	graph patterns and generate them in a fixed way.  For example, if
	one of the branches of a conditional goes to a block that is a dead
	end, the linearizer will now force the dead-end block to come
	before the other branch; this has the advantage that it usually
	minimizes the branch distance, and prevents that dead-end block
	from being far away from the conditional.
	
	* The value-class abstraction has been generalized to have more
	classes, and the use of this information has been made more uniform
	and complete.
	
	* The cross-compiler now forces the per-procedure compilation
	switch off.
	
	* The `define-rule' macro has been generalized to allow it to be
	used with user-defined rulesets.
	
	* The RTL definition macros have been changed to collect the RTL
	expression names in sets that indicate their type.
	
	* The compiler now treats self-referential top-level definitions as
	static by default.
	
	* New RTL optimization passes perform limited dataflow analysis and
	rewriting of the RTL.  These permit the LAP-generation rules to be
	tuned to more fully take advantage of the target machine's
	instruction set.
	
	* The subproblem free-variable analysis pass has been changed to
	memoize information at every CFG node.	The previous memoization
	scheme had quadratic time complexity for certain programs.
	
	* The RTL expression simplifier has been changed to force the use
	of pseudo registers for all subexpressions, except the right-hand
	side of a pseudo-register assignment.  This guarantees the
	uniformity of the code-generator's output, permitting the
	LAP-generator rules to be reduced to a small minimal set.
	
	* The RTL `unassigned-test' and `true-test' predicate types have
	been replaced by `eq-test' with the appropriate argument.
	
	* The RTL `constant' expression type has been replaced (in many
	instances) by the new `machine-constant' type.	The former is now
	used only when the result is a Scheme object, while the latter is
	used to represent constant fields of words.  A `machine-constant'
	always has an exact integer value.
	
	* The RTL `offset' expression type has been changed so that it no
	longer requires its first argument to be a register; now that may
	be an arbitrary RTL expression.
	
	* The RTL code compressor has been improved to handle many more
	instruction types, and to permit stack-slot reference expressions
	to be moved over stack pushes, adjusting their offsets in the
	process.
	
	* The RTL CSE was not copying its state correctly, and as a result
	was not doing as good a job as possible across certain conditional
	branches.

1990-01-18 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: starbase.c (1.4), version.h (11.20): Suppress error
	messages when opening a graphics device, so that we can use this
	primitive to test for the availability of the device.  Also fix
	typo in `starbase-write-image-file'.

1990-01-17 19:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.10): Eliminate `box-clear' primitive.

1990-01-17 14:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/bitstr.scm (14.2): Fix bug in signed-integer->bit-string
	by which it was not checking whether the number would fit in the
	specified number of bits or not.

1990-01-17 00:04  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* runtime/starbase.scm (1.3): [no log message]

1990-01-16 23:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/starbase.scm (1.2): Fix typo in character-attribute
	setting routines.

1990-01-15 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.47), version.h (11.19): Fix fencepost
	error in `disk-restore': when allocating space for a C string, must
	allocate one more byte than the string's length to account for
	trailing \0.

1990-01-15 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dragon4.scm (1.3), runtime.pkg (14.57), version.scm
	(14.71): Add new variable `flonum-unparser-cutoff', which controls
	the flonum printer's precision.  Acceptable values of this variable
	are:
	
	NORMAL		use all available precision (RELATIVE <n>)	<n>
	digits of precision (ABSOLUTE <n>)  <n> digits of precision after
	the decimal point

1990-01-15 13:09  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/: array.c (9.42), image.c (9.31): [no log message]

1990-01-12 18:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.29), version.h (11.18): Fix stupid bug in
	division that caused quotient to be off by one in rare cases.

1990-01-12 10:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: generic.c (9.33), version.h (11.17): Make generic
	arithmetic primitives perform fixnum arithmetic as a special case. 
	This makes a factor of 10 difference for (fib 20) on an interpreted
	system.

1990-01-10 20:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.13): Correct for scaling overshoot in
	`ratnum->flonum'.

1990-01-10 18:19  Hal Abelson <hal@zurich.ai.mit.edu>

	* runtime/arith.scm (1.12): Fix case bug in `complex:expt'.

1990-01-10 09:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scode.scm (14.8): Fix typo from last edit.

1990-01-10 08:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.5): [no log message]

1990-01-10 07:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.70): [no log message]

1990-01-10 07:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.13): Now that `vector-set!' is defined to
	return unspecific value we don't need to force it into effect
	position.

1990-01-04 01:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scode.scm (14.7): Add error checking to symbol
	operations.

1990-01-02 13:35  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/: fft.c (9.29), image.c (9.30): [no log message]

1989-12-29 15:41  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.41): [no log message]

1989-12-29 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.11): Fix definitions of `complex:acos' and
	`complex:angle' to handle boundary conditions.

1989-12-20 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/rulfix.scm (1.2): Change definitions of
	2/3-operand register-allocation procedures.

1989-12-20 17:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.9): Flush 2/3-operand
	register allocation procedures.

1989-12-20 13:03  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/: sgraph_a.c (1.9), array.c (9.40), fft.c (9.28):
	graphics and debug changes

1989-12-19 10:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.17): Change format used by the "Y" command.

1989-12-14 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (14.5): In `trace-display', no-argument case
	was putting close bracket at beginning of empty line, when it
	should have been at the end of the previous line.

1989-12-11 02:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.63): * Take advantage
	of new entry points in compiled code interface.  These changes
	require microcode 11.16 or later.
	
	* Use BFEXTU instruction to extract type field.  This instruction
	is both faster and smaller than the previous sequence, for both 6
	and 8 bit types.  Use BFTST instruction to test for zero types. 
	Conditionalize use of the bit-field instructions on the new flag
	`use-68020-instructions?'; I don't believe that we're using any
	other 68020-specific instructions besides these.
	
	* Add rule for 1-arg fixnum predicates that tries to take advantage
	of the preceding LSL.L instruction to test the number, rather than
	emitting a redundant TST.L; this new rule is always used in generic
	arithmetic expansions.

1989-12-11 01:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm2.scm (4.16), lapgen.scm (4.25),
	rules1.scm (4.31), rules2.scm (4.11), rules3.scm (4.22), rules4.scm
	(4.9): * Take advantage of new entry points in compiled code
	interface.  These changes require microcode 11.16 or later.
	
	* Use BFEXTU instruction to extract type field.  This instruction
	is both faster and smaller than the previous sequence, for both 6
	and 8 bit types.  Use BFTST instruction to test for zero types. 
	Conditionalize use of the bit-field instructions on the new flag
	`use-68020-instructions?'; I don't believe that we're using any
	other 68020-specific instructions besides these.
	
	* Add rule for 1-arg fixnum predicates that tries to take advantage
	of the preceding LSL.L instruction to test the number, rather than
	emitting a redundant TST.L; this new rule is always used in generic
	arithmetic expansions.

1989-12-09 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/mc68k.m4 (1.8), cmpintmd/mc68k.h (1.11),
	version.h (11.16): In the 680x0 compiled-code interface, added
	entry points for many common entries; also added special entries
	for `apply' of small frame sizes.  These entry points save space in
	the compiled code, eliminating the code expansion caused by the
	recent upgrade of the compiled-code interface.

1989-12-07 20:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxprm.scm (1.6), version.scm (14.69): Add new
	primitive `file-attributes-indirect' that uses `stat' instead of
	`lstat'.  Change `file-modification-time' to use it.

1989-12-07 20:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.37), version.h (11.15): Add new primitive
	`file-attributes-indirect' that uses `stat' instead of `lstat'.

1989-12-07 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (11.14): Cause floating-overflow traps to
	signal at all times.  Change hardware trap frames to contain the
	"code" passed into the signal handler.

1989-12-07 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (4.5): Make sure that time reports appear in
	decimal notation.

1989-12-07 00:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.11), version.scm (14.68): Adjust parser
	for hardware trap frames to account for extra object pushed by
	microcode.

1989-12-07 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.56): If a microcode error is missing a
	handler, report the error without special handling for the
	irritants.

1989-12-07 00:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.11): If a microcode error is missing a
	handler, report the error without special handling for the
	irritants.

1989-12-06 23:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.24): Fix masking bug in
	`compiled_entry_type'.

1989-12-06 05:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.10): Modify comments to match the
	compiler and cmpaux-hppa.h

1989-12-06 05:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.7): Add store_closure_code hook to
	save code space.

1989-12-06 00:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchgcl.c (9.39), bchpur.c (9.48), bchdmp.c (9.48):
	Fix bug in code that detects whether the manifest closure count can
	be read.  The area forced to memory did not in fact include the
	count, so the count read was garbage.

1989-12-05 18:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlexp.scm (4.14): Don't consider `cons-closure'
	to be a trivial RTL expression.

1989-12-05 16:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.21): Typo.

1989-12-05 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.62): - Conditionalize
	open coding according to the port.  There is now a
	machine-dependent list (compiler:primitives-with-no-open-coding) in
	machin.scm which disables individual primitives.
	
	- Extend fixnum and flonum operations with an overflow? flag.
	
	- Force use of address registers for indirection.
	
	- Don't emit dynamic-link comparison unless the called procedure is
	known to be internal.

1989-12-05 15:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlty1.scm (4.15), machines/bobcat/rules1.scm
	(4.30), rtlbase/rtlcon.scm (4.19): Extend fixnum and flonum
	operations with an overflow? flag.

1989-12-05 15:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.33), machines/bobcat/machin.scm
	(4.19): Conditionalize open coding according to the port.  There is
	now a machine-dependent list
	(compiler:primitives-with-no-open-coding) in machin.scm which
	disables individual primitives.

1989-12-05 15:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.24): Force use of address
	registers for indirection.  If the register is used once, the cost
	is about the same in both space and time.  However, if it is used
	more than once, this is both faster and smaller.

1989-12-05 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.13): Split
	`machine-register-reference' to create new procedure
	`guarantee-alias-register!'.  This new procedure is like
	`load-alias-register!' except that it accepts a machine register as
	an argument and handles it appropriately.

1989-12-05 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.14): When compiling a reduction
	whose caller uses a dynamic link, don't output link comparison code
	unless the callee is known to be an internal procedure.

1989-12-05 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.20): Change
	`move-frame-up' rule to use "mov" rather than "lea" when the source
	is an address register.

1989-12-04 16:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (11.13): New compiled code interface.

1989-12-04 10:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.12): Add three operand utilities for
	Vax, RISC, etc.
	
	Add copy-to-special-register.

1989-12-03 08:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpintmd/hppa.h (1.9), cmpauxmd/hppa.m4 (1.6): Add
	scheme_to_interface_ble that falls through to
	trampoline_to_interface.  GR3 now holds the address of
	scheme_to_interface_ble.

1989-12-02 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.11): Don't undrift a procedure if
	the only reason for doing so is contagion from trivial closures.

1989-12-02 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.24): Force compilation times to be
	written out in decimal notation.

1989-11-30 11:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: lapgen.scm (4.23), rules3.scm (4.19),
	rules4.scm (4.8), dassm2.scm (4.15), machin.scm (4.18): New
	compiled code interface written in C.
	
	Old hooks have been removed and the register block has been
	restructured.

1989-11-30 11:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlobj.scm (4.8), rtlgen/rtlgen.scm (4.22):
	New compiled code interface written in C.
	
	rtl-procedures now included a field that specifies whether they
	need a dynamic link so that the interrupt handler can be determined
	at compile time.

1989-11-30 10:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.61): New compiled code
	interface written in C.

1989-11-30 10:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/asm.scm (1.1): Initial revision

1989-11-30 02:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.10): Fix bug in `expt': zero raised to an
	integer power always returned one.  Fix bug in `asin': real
	arguments of magnitude larger than one should be handled specially.

1989-11-30 00:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.10): Clean up machine dependent
	initialization.  The assembly language hooks are now set up by a
	procedure in this code.

1989-11-30 00:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.7): - Remove temporary
	compatibility code and old initialization code.    The hooks are
	now set up by code in cmpint-mc68k.h .
	
	- Add an initialization procedure to diddle with the 68881.

1989-11-30 00:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.23): Clean up machine dependent
	initialization.

1989-11-30 00:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.43): Fix bug in Do_Compiled_Entry:
	OBJECT_NEW_DATUM was incorrectly used for MAKE_OBJECT, and thus all
	compiled entries were being dumped as nulls with non-zero datum
	fields.

1989-11-29 22:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.36), wsize.c (9.29), bchmmg.c (9.50),
	boot.c (9.60), config.h (9.51), dump.c (9.30), memmag.c (9.42),
	object.h (9.34), psbmap.h (9.32), storage.c (9.45), version.h
	(11.12): Fix bug in boot.c by which GC_Reserve was set after MemTop
	was computed in Clear_Memory.  GC_Reserve is now set by
	Clear_Memory.
	
	Rename Heap_In_Low_Memory to HEAP_IN_LOW_MEMORY.
	
	Clean up Spectrum stuff and remove previous version of the quad bit
	kludge which forced 8 bit type codes to be used.

1989-11-28 16:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.8): Add a comment about a future
	improvement to eliminate the delay slot nullification in execute
	cache cells.

1989-11-28 10:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.3): Document trampolines and
	interrupt checks.

1989-11-28 08:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.7): Make EXTRACT_ABSOLUTE_ADDRESS
	and STORE_ABSOLUTE_ADDRESS call out-of-line procedures which use
	bit fields rather than masks.

1989-11-28 08:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.22): Add a IN_CMPINT_C flag so that
	cmpint2.h can insert code.

1989-11-28 00:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.5): Fix segment and subsegment
	directives.  Fix table load instruction to use short
	pointer-specified segment.

1989-11-28 00:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.21): Add a missing + sign in the
	computation of REGBLOCK_SIZE.

1989-11-28 00:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.6): Fix the encoding of the space
	register on the instructions that take a 3-bit space register code.
	
	Remove COMPILER_HOOK_SIZE, no longer needed.
	
	Remove ASM_REGBLOCK and ASM_RESET_HOOK.

1989-11-27 20:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sysclk.scm (14.2): When interconverting ticks and
	seconds, represent seconds as inexact numbers and ticks as exact
	integers.

1989-11-27 16:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.42): Fix a bug in bignum printing.

1989-11-27 15:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.20): Conditionalize according to
	HAS_COMPILER_SUPPORT and insert the code previously in compiler.c
	for the case when there is no support.

1989-11-27 15:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.9): Remove casts from scalars on
	the left hand side of assignments.  GCC understands that, but the
	HP C compiler does not.

1989-11-27 15:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.5): Remove casts from scalars on the
	left hand side of assignments.	GCC understands that, but the HP C
	compiler does not.

1989-11-27 15:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.19): Change all variables assigned by
	EXTRACT_EXECUTE_CACHE_ADDRESS, etc.  to have consisten types.

1989-11-27 15:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpauxmd/mc68k.m4 (1.6), cmpgc.h (1.9),
	cmpauxmd/hppa.m4 (1.4): Fix the comment specifying where further
	documentation may be found.

1989-11-27 13:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/: mc68k.h (1.8), hppa.h (1.4): Fix typo.

1989-11-27 13:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.3): Fix the LDIL assembly and
	disassembly.  The bits are not contiguous!

1989-11-27 11:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.3): Add save/restore code for
	registers 15-18, also callee-saves.

1989-11-27 11:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.2): Finish translating to Spectrum
	instruction set.

1989-11-26 22:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.2): Make R3 hold
	trampoline_to_interface rather than scheme_to_interface. 
	scheme_to_interface is 4 bytes beyond trampoline_to_interface, so
	it can be reached from the same register.
	
	Fix the space register in the BLE instruction that invokes the
	handler. We are jumping into code space, and the BLE instruction
	does not understand short pointers.

1989-11-26 22:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/hppa.h (1.1): Initial revision

1989-11-26 20:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: cmpint.c (1.18), cmpgc.h (1.8), cmpintmd/mc68k.h
	(1.7): Clean up the mess with machine_word.

1989-11-26 12:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.47), bchgcl.c (9.38), bchpur.c (9.47),
	fasdump.c (9.45), fasload.c (9.46), gcloop.c (9.33), purify.c
	(9.42), version.h (11.11): Clean up the mess with machine_word.

1989-11-25 20:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.6): Fix comment in header.

1989-11-23 16:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.2): Update to match the
	newer cmpint-md.h

1989-11-23 14:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/hppa.m4 (1.1): Initial revision

1989-11-23 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.5): Change the comment at the
	beginning to make it a little clearer and general.
	
	Add shortcircuit_apply.
	
	Reorganize the code so that the core, the optimizations, and the
	backwards compatibility code are clearly separated.

1989-11-22 11:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.17): Fix a bug backing out of apply.  The
	procedure and number of arguments were not being pused on the stack
	consistently, so there were some paths that could not restart on
	interrupt, for example.

1989-11-21 18:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.4): Remove the patch in
	comentry_lexpr_apply used to temporarily overcome the fact that
	dynamic links were not correctly preserved.  The compiler has been
	fixed, and the patch is no longer necessary.

1989-11-21 18:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.16): Fix a bug in
	comutil_operator_lexpr_trap.   The number of arguments stored in
	the trampoline is 1 greater than the number of actual arguments
	passed, but the primitive convention expects the correct number.

1989-11-21 17:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.60),
	rtlgen/rgproc.scm (4.9), rtlgen/rgcomb.scm (4.13): Fix a bug in
	local lexprs.  The dynamic link register was not preserved accross
	the call to lexpr-apply.  On the 68k, a gc in lexpr-apply would
	corrupt the dynamic link.  On the portable interface, it was always
	corrupted.

1989-11-20 19:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.15): If `fasload' fails to load debugging
	information for some reason, recover and pretend that the debugging
	info doesn't exist.

1989-11-20 18:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.3): Simple changes:
	
	- Fix a bug: interface_to_C was not restoring the registers saved
	by C_to_interface.
	
	- Add scheme_to_interface_jsr entry point.
	
	- Add a temporary patch to lexpr_apply to prevent the dynamic link
	register from being clobbered.
	
	- Add some conditionally assembled code to keep a limited history
	of calls from compiled code to the interface.

1989-11-20 18:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.15): Fix a small bug in
	compiler_interrupt_common: state was not being restored when the
	interrupt was dismissed.

1989-11-14 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.59): Rules that
	perform index->fixnum conversions must use arithmetic left shift so
	that proper testing for overflow can occur.  The reason: these
	rules also get invoked by generic arithmetic because the code
	compressor sees them and combines instruction pairs to use them.

1989-11-14 21:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.9), version.scm (14.67): Add several
	missing `int:' prefixes to `ratnum->flonum'.  Fix argument order to
	`real:atan2' in `complex:angle'.  Fix exact integer argument test
	in `real:atan2'.  Add code to perform exact `expt' when the first
	argument is a recnum and the second is an exact integer.

1989-11-14 21:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (4.6): Define `int:>' as an integrable constant.

1989-11-14 21:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.29): Rules that perform
	index->fixnum conversions must use arithmetic left shift so that
	proper testing for overflow can occur.	The reason: these rules
	also get invoked by generic arithmetic because the code compressor
	sees them and combines instruction pairs to use them.

1989-11-11 14:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.45), version.h (11.10), x11term.c (1.7):
	Add a heuristic check to fasload so that it won't get into an
	infinite loop trying to load something when there is no space.
	
	Merge in Mike Clarkson's changes to x11term.c
	
	Add a new file: x11xtra.c which includes some additional x11 xterm
	functionality (scrolling and screen saving/restoring).

1989-11-10 11:18  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/unix.scm (1.11): Fixed os/trim-pathname-string() to have
	"end" point to the end of the string, not to one past the end. The
	old behavior caused it to barf when presented with a string with a
	slash at the end (it barfed on the string-ref in "... ((memv ..."

1989-11-09 17:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.8), version.scm (14.66): Fix bug in *, t
	he call to reduce was incorrect.

1989-11-08 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numint.scm (1.1): Initial revision

1989-11-08 22:44  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* runtime/: option.scm (14.6), runtime.pkg (14.55), version.scm
	(14.65): Add optional arithmetic-interface code.

1989-11-07 01:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.14): Fix a bug in compiled_entry_type by
	which lexprs were classified as random entries.  The min arity was
	read as the max, and viceversa.

1989-11-06 17:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.5): Second batch of fixes to get
	scheme up:
	
	Fix EXECUTE_CACHE_ENTRIES_TO_COUNT: It was using the free variable
	count rather than the parameter entries.

1989-11-06 17:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.13): Second batch of fixes to get scheme
	up:
	
	- Fix the error backouts:  They cannot use the expression register
	for recovery information since the interpreter bashes it with the
	size of the compiled code stack segment.
	
	- Fix a couple of problems with the linker: on restart it must
	restore the env register.  the recovery count was saved incorrectly
	(bad macro).

1989-11-06 17:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.43): Fix bug in force_definition to return
	error code when attempting to force a definition in the empty
	environment.

1989-11-06 12:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.7): First batch of changes to run scheme:
	
	Add MAKE_LINKAGE_SECTION_HEADER definition.

1989-11-06 12:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.2): First batch of changes to run
	scheme:
	
	Add all the hooks needed for compatibility with the current
	compiler.
	
	Add an ext.l in comentry_apply.
	
	Add an entry in the register block for trampoline_to_interface.
	
	Clean up the comentry_interrupt_procedure heuristic by invoking two
	different comutils: comutil_interrupt_procedure (no dlink) and
	comutil_interrupt_dlink.

1989-11-06 12:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.4): First batch of changes to run
	scheme:
	
	Add ASM_REGISTER_BLOCK definition and ASM_RESET_HOOK.
	
	A6_OFFSET was incorrect.  It corresponded to scheme_to_interface,
	not trampoline_to_interface.
	
	Change the definitions of FORMAT_BYTE_MUMBLE and FORMAT_WORD_MUMBLE
	to not depend on signed numbers being correctly cast.

1989-11-06 12:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.12): First batch of changes to run scheme:
	
	- Fix syntax problems.
	
	- The trampoline arity table was accessed incorrectly.	The
	incorrect index was being computed.
	
	- open_gap had an off-by-one error: The procedure is not on the
	stack, so it does not need to be moved.

1989-11-02 03:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlopt/rcompr.scm (1.9), base/toplev.scm (4.23),
	fgopt/varind.scm (1.3), machines/bobcat/rules1.scm (4.28),
	machines/bobcat/make.scm-68040 (4.58): * Change
	variable-indirection pass to occur after closure analysis.  Disable
	variable-indirection if either the source or target variable is
	closed-over.
	
	* Change RTL code-compression to permit compression of
	`offset-address' expressions across multiple instructions.  Add two
	new rules needed to accomplish this for the standard static-link
	setup code.  The goal of this modification is to permit the use of
	the "pea" instruction when pushing static-links.

1989-11-01 22:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.9), bchmmg.c (9.49): Fix bug in
	bchmmg.c by which weak pairs whose cars were compiled procedures
	would not be updated correctly.

1989-11-01 13:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.3): Add the instruction typedef
	(moved here from cmpint.c).

1989-11-01 13:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.11): Remove the instruction typedef (in
	cmpint2.h now).

1989-11-01 13:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.6): Insert cmpgc-stub.h after
	conditionalizing according to HAS_COMPILER_SUPPORT .
	
	Rename to cmpgc.h from cmpgc-portable.h

1989-11-01 13:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpauxmd/mc68k.m4 (1.1): Initial revision

1989-10-31 07:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: vector.c (9.33), version.h (11.8): Fix bug in
	vector-cons by which it was not checking for GC.

1989-10-31 00:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.7): Reimplement flonum->ratnum conversion to
	guarantee that the ratnum chosen is the closest representation
	possible; this is required by definition of `inexact->exact'. 
	Previously we used `rationalize' to find "best" answer in a given
	range, which is not strictly correct by the definition.

1989-10-30 23:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.64): Reimplement ratnum->flonum
	conversion to guarantee that the flonum chosen is the closest
	representation possible.  Also extend `number->string' to handle a
	few more of the old formats, specifically the radix conversion
	formats.

1989-10-30 22:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.6): Reimplement ratnum->flonum conversion to
	guarantee that the flonum chosen is the closest representation
	possible.  Also extend `number->string' to handle a few more of the
	old formats, specifically the radix conversion formats.

1989-10-30 17:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.2): Force the output to have a decimal
	point even when it can be written without one.	This is explicitly
	required by the text of the report.

1989-10-28 11:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.41), bchdmp.c (9.46), bchgcc.h (9.35),
	bchgcl.c (9.37), bchpur.c (9.46), fasdump.c (9.44), fasload.c
	(9.44), gc.h (9.30), gccode.h (9.42), gcloop.c (9.32), interp.c
	(9.53), memmag.c (9.41), purify.c (9.41), purutl.c (9.38),
	version.h (11.7): Various changes to the garbage collector and
	other relocators to accomodate machines where jsr-style
	instructions do not encode the target address directly and
	contiguously.
	
	Some changes to cmp68kgc.h to better match the portable version,
	cmpgc-portable.h .
	
	Split the defaulting of various macros from gccode.h into
	cmpgc-stub.h .	gccode.h includes cmpgc.h which should be a copy of
	(or link to) cmp68kgc.h, cmpvaxgc.h, cmpgc-portable.g, or
	cmpgc-stub.h

1989-10-28 11:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.2): Change
	COMPILED_CLOSURE_ENTRY_SIZE to be in machine_word s.  The closure
	entries may be packed tighter than objects.

1989-10-28 11:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.5): Change MANIFEST_CLOSURE_COUNT,
	FIRST_MANIFEST_CLOSURE_ENTRY, and MANIFEST_CLOSURE_END to
	accomodate BCHSCHEME.

1989-10-28 07:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/missing.c (9.26): Fix some random bugs in frexp that
	should have been caught when it was written.

1989-10-28 05:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.19): Must discard CSE information at
	any kind of unknown invocation.

1989-10-28 02:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.5): Fix bug which caused "1e100" to be
	rejected as number syntax.

1989-10-28 02:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.5): Fix `real:expt' so that it correctly
	handles negative base.	Add special case for flonum base and
	integer exponent.

1989-10-28 02:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/flonum.c (9.32): Remove restriction from first argument
	of primitive `flonum-expt'.  Rely on runtime system (or user) to
	provide correct restrictions.

1989-10-27 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.4): Fix typo in `real:min'.

1989-10-27 09:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.4): Change the way that closure and execute
	cache entry points are extracted to accomodate machines that have
	the addresses "smeared out" over multiple instructions.
	
	Change the way that closures with multiple entry points are
	detected.

1989-10-27 09:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpintmd/mc68k.h (1.1): Initial revision

1989-10-27 09:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.10): Update to match latest version of
	cmp68020, ie. make the numeric hooks apply the values contained in
	the fixed objects vector.

1989-10-27 03:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.57): Don't perform
	variable-indirection optimization on variables that are introduced
	to model continuations.

1989-10-27 03:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/varind.scm (1.2): Don't perform
	variable-indirection optimization on variables that are introduced
	to model continuations.

1989-10-27 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: arith.scm (1.2), arith.scm (1.3): In `number->string',
	handle a radix argument of '(heur).

1989-10-27 03:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.15): Don't call `compiled-procedure/name'
	on a compiled-entry unless that entry is known to be a procedure
	type.

1989-10-27 03:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.15): Fix bug finding parent of
	stack-environment when there is a continuation block between the
	starting block and the parent block.

1989-10-27 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.63): [no log message]

1989-10-27 00:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.54): Forgot to export `denominator'.

1989-10-27 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.4): When parsing a badly-formed number
	with a #i prefix, don't blindly attempt to map the result to
	inexact; test to see if the number is well-formed first.

1989-10-26 22:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/arith.scm (1.1): Initial revision

1989-10-26 03:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.59), config.h (9.50), fixobj.h (9.28),
	generic.c (9.32), intprm.c (1.3), utabmd.scm (9.50), version.h
	(11.6): * Change generic arithmetic primitives to be trampolines
	into some procedures that are stored in the fixed objects vector. 
	This permits some upwards compatibility of new R4RS arithmetic and
	gives the compiler a method for invoking the binary arithmetic
	operators which are normally not available in the global
	environment.  It also provides a solution to the problem of making
	generic arithmetic available during the cold load.  The
	compiled-code interface bypasses the primitive interface and
	directly applies these trampolines, thus avoiding the overhead of
	the interface when the trampoline is also compiled.
	
	* Increase the default constant size of the regular band to 400,
	and the heap size of the compiler band to 1000.

1989-10-26 03:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.56): * Rewrite the
	flonum lap-generation rules to perform register-reusing, as is
	already the case for fixnum rules.  Generalize some tools so that
	most code can be shared between fixnum and flonum rules.
	
	* Implement assorted changes to conform to new R4RS arithmetic.
	
	* Redesign closure-analysis/procedure-undrifting.  New design
	should perform better than old, and I believe that this one is
	substantially more correct.
	
	* Add "variable indirections", which come into play when the a
	variable is known to be bound to the value of another variable
	which is bound in an ancestor frame of the first variable (i.e. the
	first variable can be considered an alias for the second).
	
	* Don't inline-code procedures with rest variables.
	
	* New pass notices when two returns are equivalent, and merges
	them.  Another new pass notices when the tails of two basic blocks
	are equivalent, and merges them.  These two work together to
	eliminate multiple copies of suffixes in various cases (most
	notably predicates).
	
	* Introduce concept that certain procedures are "boolean-valued"
	and can be treated specially if they appear in the predicate of a
	disjunction.
	
	* Disconnect registerizable-parameter code because it introduces
	instability in the three-stage compilation test.  This code doesn't
	seem to be doing much right now anyway.
	
	* Fix bug in "remote links": must use another addressing-mode when
	the offset is too large to fit in 16 bits.
	
	* Add rule to permit static-links to be pushed in two instructions
	instead of three on the 68020.
	
	* Change RTL constructors to reduce the number of intermediate
	registers generated for trivial expressions.  Improve definition of
	"trivial expression" to include certain kinds of constants.
	
	* Change open-coded combinations in the case where they appear in
	reduction position, and where the open-coding of the combination
	will include a close-coded call.  The new strategy is to setup the
	arguments as if the combination was close-coded, then open-code
	assuming the arguments are in those positions.	This has the
	advantage of allowing the internal close-coded call to be
	transformed into a jump with no clumsy argument manipulation
	required.
	
	* Change RTL CSE to treat small (8-bit) numeric constants as
	cheaper than registers.

1989-10-26 03:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fgopt/reteqv.scm (1.1), fgopt/varind.scm (1.1),
	rtlopt/rtlcsm.scm (1.1): Initial revision

1989-10-26 03:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/rules2.scm (4.10),
	machines/bobcat/rules3.scm (4.18), machines/bobcat/rules4.scm
	(4.7), rtlbase/rgraph.scm (4.6), rtlbase/rtlcfg.scm (4.8),
	rtlbase/rtlcon.scm (4.18), rtlbase/rtlexp.scm (4.13),
	rtlbase/rtline.scm (4.10), rtlbase/rtlty2.scm (4.7),
	rtlgen/fndvar.scm (1.3), rtlgen/opncod.scm (4.32),
	rtlgen/rgcomb.scm (4.12), rtlgen/rgretn.scm (4.13),
	rtlgen/rgrval.scm (4.14), rtlgen/rtlgen.scm (4.21),
	rtlopt/rcse2.scm (4.12), rtlopt/rcseht.scm (4.9): * Rewrite the
	flonum lap-generation rules to perform register-reusing, as is
	already the case for fixnum rules.  Generalize some tools so that
	most code can be shared between fixnum and flonum rules.
	
	* Implement assorted changes to conform to new R4RS arithmetic.
	
	* Redesign closure-analysis/procedure-undrifting.  New design
	should perform better than old, and I believe that this one is
	substantially more correct.
	
	* Add "variable indirections", which come into play when the a
	variable is known to be bound to the value of another variable
	which is bound in an ancestor frame of the first variable (i.e. the
	first variable can be considered an alias for the second).
	
	* Don't inline-code procedures with rest variables.
	
	* New pass notices when two returns are equivalent, and merges
	them.  Another new pass notices when the tails of two basic blocks
	are equivalent, and merges them.  These two work together to
	eliminate multiple copies of suffixes in various cases (most
	notably predicates).
	
	* Introduce concept that certain procedures are "boolean-valued"
	and can be treated specially if they appear in the predicate of a
	disjunction.
	
	* Disconnect registerizable-parameter code because it introduces
	instability in the three-stage compilation test.  This code doesn't
	seem to be doing much right now anyway.
	
	* Fix bug in "remote links": must use another addressing-mode when
	the offset is too large to fit in 16 bits.
	
	* Add rule to permit static-links to be pushed in two instructions
	instead of three on the 68020.
	
	* Change RTL constructors to reduce the number of intermediate
	registers generated for trivial expressions.  Improve definition of
	"trivial expression" to include certain kinds of constants.
	
	* Change open-coded combinations in the case where they appear in
	reduction position, and where the open-coding of the combination
	will include a close-coded call.  The new strategy is to setup the
	arguments as if the combination was close-coded, then open-code
	assuming the arguments are in those positions.	This has the
	advantage of allowing the internal close-coded call to be
	transformed into a jump with no clumsy argument manipulation
	required.
	
	* Change RTL CSE to treat small (8-bit) numeric constants as
	cheaper than registers.

1989-10-26 03:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (4.8), back/lapgn2.scm (1.11),
	back/linear.scm (4.8), back/syntax.scm (1.24), base/blocks.scm
	(4.12), base/cfg1.scm (4.4), base/cfg2.scm (4.3), base/cfg3.scm
	(4.4), base/crstop.scm (1.5), base/ctypes.scm (4.14),
	base/debug.scm (4.11), base/infnew.scm (4.6), base/lvalue.scm
	(4.16), base/object.scm (4.8), base/proced.scm (4.15),
	base/toplev.scm (4.22), base/utils.scm (4.14), fggen/fggen.scm
	(4.23), fgopt/blktyp.scm (4.13), fgopt/closan.scm (4.10),
	fgopt/contan.scm (4.9), fgopt/delint.scm (1.2), fgopt/operan.scm
	(4.7), fgopt/order.scm (4.13), fgopt/param.scm (1.2),
	fgopt/reuse.scm (1.4), fgopt/simple.scm (4.6), fgopt/subfre.scm
	(1.3), machines/bobcat/compiler.pkg (1.25),
	machines/bobcat/dassm1.scm (4.14), machines/bobcat/dassm2.scm
	(4.14), machines/bobcat/decls.scm (4.24),
	machines/bobcat/insmac.scm (1.125), machines/bobcat/insutl.scm
	(1.8), machines/bobcat/lapgen.scm (4.22),
	machines/bobcat/rules1.scm (4.27): * Rewrite the flonum
	lap-generation rules to perform register-reusing, as is already the
	case for fixnum rules.	Generalize some tools so that most code can
	be shared between fixnum and flonum rules.
	
	* Implement assorted changes to conform to new R4RS arithmetic.
	
	* Redesign closure-analysis/procedure-undrifting.  New design
	should perform better than old, and I believe that this one is
	substantially more correct.
	
	* Add "variable indirections", which come into play when the a
	variable is known to be bound to the value of another variable
	which is bound in an ancestor frame of the first variable (i.e. the
	first variable can be considered an alias for the second).
	
	* Don't inline-code procedures with rest variables.
	
	* New pass notices when two returns are equivalent, and merges
	them.  Another new pass notices when the tails of two basic blocks
	are equivalent, and merges them.  These two work together to
	eliminate multiple copies of suffixes in various cases (most
	notably predicates).
	
	* Introduce concept that certain procedures are "boolean-valued"
	and can be treated specially if they appear in the predicate of a
	disjunction.
	
	* Disconnect registerizable-parameter code because it introduces
	instability in the three-stage compilation test.  This code doesn't
	seem to be doing much right now anyway.
	
	* Fix bug in "remote links": must use another addressing-mode when
	the offset is too large to fit in 16 bits.
	
	* Add rule to permit static-links to be pushed in two instructions
	instead of three on the 68020.
	
	* Change RTL constructors to reduce the number of intermediate
	registers generated for trivial expressions.  Improve definition of
	"trivial expression" to include certain kinds of constants.
	
	* Change open-coded combinations in the case where they appear in
	reduction position, and where the open-coding of the combination
	will include a close-coded call.  The new strategy is to setup the
	arguments as if the combination was close-coded, then open-code
	assuming the arguments are in those positions.	This has the
	advantage of allowing the internal close-coded call to be
	transformed into a jump with no clumsy argument manipulation
	required.
	
	* Change RTL CSE to treat small (8-bit) numeric constants as
	cheaper than registers.

1989-10-26 02:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.3): * All-new arithmetic and number I/O
	conforms with R4RS.
	
	* The variable
	
	  (access flonum-unparser-hook (->environment '(runtime number)))
	
	accepts two arguments (the flonum and the radix), and returns
	either the string representation or #f.
	
	* `*unparser-radix*' is recognized only when it is one of (2 8 10
	16), and it affects only exact rationals.  Inexact numbers and
	non-rational complex numbers are always printed in base 10.  The
	radix prefix is suppressed in base 10, or in the other bases when
	the number's absolute value is less than the radix.
	
	* Written representation of compiled entries changed to show the
	"block number".
	
	* `pp' no longer accepts hash numbers as arguments; use #@ if you
	want that effect (you will need to type '#@ for scode objects).
	
	* `trace'/`break' output changed to show arguments more clearly.

1989-10-26 02:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dragon4.scm (1.1): Initial revision

1989-10-26 02:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.4), conpar.scm (14.10), debug.scm
	(14.16), equals.scm (14.2), gcnote.scm (14.6), gensym.scm (14.2),
	histry.scm (14.2), infutl.scm (1.14), input.scm (14.5), list.scm
	(14.10), make.scm (14.19), parse.scm (14.9), pp.scm (14.9),
	random.scm (14.3), rep.scm (14.13), runtime.pkg (14.53), runtime.sf
	(14.4), scomb.scm (14.4), stream.scm (14.6), system.scm (14.7),
	uerror.scm (14.10), unpars.scm (14.14), unxprm.scm (1.5),
	version.scm (14.62), x11graph.scm (1.4): * All-new arithmetic and
	number I/O conforms with R4RS.
	
	* The variable
	
	  (access flonum-unparser-hook (->environment '(runtime number)))
	
	accepts two arguments (the flonum and the radix), and returns
	either the string representation or #f.
	
	* `*unparser-radix*' is recognized only when it is one of (2 8 10
	16), and it affects only exact rationals.  Inexact numbers and
	non-rational complex numbers are always printed in base 10.  The
	radix prefix is suppressed in base 10, or in the other bases when
	the number's absolute value is less than the radix.
	
	* Written representation of compiled entries changed to show the
	"block number".
	
	* `pp' no longer accepts hash numbers as arguments; use #@ if you
	want that effect (you will need to type '#@ for scode objects).
	
	* `trace'/`break' output changed to show arguments more clearly.

1989-10-26 02:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: gconst.scm (4.5), make.scm (4.9), sf.sf (4.5), subst.scm
	(4.5), usiexp.scm (4.4): A variety of changes to complement the
	installation of the R4RS arithmetic system in the runtime system. 
	Most of these changes add new expansions for arithmetic operations.

1989-10-26 00:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.3): Minor reorganization.

1989-10-26 00:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.9): Write the initialization code.  Add the
	SCHEME_UTILITY table and define the TRAMPOLINE_K_ numbers.

1989-10-24 02:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.8): More cleaning of the trampoline code so
	that the assembly language is easier to write.

1989-10-23 17:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.7): Some cleanup of the trampoline code.

1989-10-23 17:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpgc.h (1.2): Update to use new microcode types and
	macros.

1989-10-23 12:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.6): Add missing SCHEME_UTILITYs.  Fix a bug
	in comutil_link, and make the restart block match the 68k and vax
	versions.  Reorganize and reformat slightly.

1989-10-22 23:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.5): Change the way that SCHEME_UTILITYs are
	invoked, and add all of the utilities currently being used by the
	compiler.

1989-10-20 00:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbmap.h (9.31): Remove static keyword from the
	declaration of memory_base.  GCC does not like something to be
	declared both extern and static, and it is declared extern in
	object.h, included here.

1989-10-14 11:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.9): Fix syntax/cond so that: a: (cond) is
	legal.	b: (cond 3) gives a reasonable error message.

1989-10-11 11:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (11.5), generic.c (9.31): Fix a bug in the
	error exits for &> .

1989-10-11 11:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.2): Add a global call/cc .

1989-10-10 07:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.9): `stack-frame/ref' needs to be able to
	address elements in subsequent stack frames as well as the given
	one.

1989-10-10 07:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.14): `environment-parent' wasn't skipping
	over intermediate static-links correctly.

1989-10-03 22:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (4.4): Add new integer and flonum primitives. 
	Delete arithmetic ops that will no longer be primitives.

1989-10-03 18:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.61): [no log message]

1989-10-03 18:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.13): Fix bug which prevented correct
	recognition of debugging info for the root block of a
	multiple-block compilation.

1989-10-03 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.13): Add handling for dbg-variables with
	type `indirect'.

1989-09-29 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.6): Change order of source directories to
	match order in which files are compiled by "comp.cbf".

1989-09-28 17:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.60): Add global definitions for selected
	flonum and integer-generic primitives.

1989-09-28 17:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fixnum.c (9.29), version.h (11.4): Add primitives
	`fixnum-quotient' and `fixnum-remainder'.

1989-09-25 17:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules1.scm (4.26), make.scm-68040
	(4.55): Add missing rule.

1989-09-25 13:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/flonum.c (9.31): Add new primitive
	`flonum-denormalize'.

1989-09-25 13:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/findprim.c (9.42): Fix bug in `grow_data_buffer':
	forgot to update the pointers into the reallocated structure.

1989-09-25 12:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: artutl.c (1.4), extern.h (9.35), flonum.c (9.30),
	version.h (11.3): Add new primitive `flonum-denormalize'.

1989-09-24 12:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/artutl.c (1.3): Fix definition of `flonum_normalize'.

1989-09-24 11:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.52): Export
	`microcode-id/floating-epsilon'.

1989-09-24 11:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.39): Eliminate hand-coded flonum
	parameters in favor of those in "float.h".  These new parameters
	can be generated by hard-params, or if the system has <float.h> we
	can use that instead.

1989-09-24 11:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: psbtobin.c (9.38), boot.c (9.58), config.h (9.49),
	flonum.c (9.29), intprm.c (1.2), object.h (9.33), scheme.h (9.31):
	Eliminate hand-coded flonum parameters in favor of those in
	"float.h".  These new parameters can be generated by hard-params,
	or if the system has <float.h> we can use that instead.

1989-09-24 10:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.4): fixed-objects-vector now contains
	flonum-epsilon instead of flonum-exponent-bits.

1989-09-24 10:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: utabmd.scm (9.48), utabmd.scm (9.49):
	fixed-objects-vector now contains flonum-epsilon instead of
	flonum-exponent-bits.

1989-09-24 10:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: utabs.scm (14.3), version.scm (14.59): Microcode's
	fixed-objects-vector now contains flonum-epsilon instead of
	flonum-exponent-bits; change microcode table code to accomodate.

1989-09-24 09:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: extern.h (9.34), flonum.c (9.28), artutl.c (1.2),
	version.h (11.2): Add primitives to normalize flonums, and to
	produce the key flonum parameters: number of bits in significand,
	and smallest number which can be added to one and still produce
	different result.

1989-09-23 23:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.54): [no log message]

1989-09-23 23:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.21): Don't set
	`*info-output-filename*' or `*rtl-output-pathname*' in
	`compiler:reset!'; they are fluid-bound instead.

1989-09-23 23:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/blktyp.scm (4.12): Change criterion used to decide
	whether or not to close procedures.  New criterion is to examine
	`procedure-closure-context', which will be set to #t by the closure
	analysis iff it decides that the procedure needs to be closed.

1989-09-23 23:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.9): Change code back to clobber the
	procedure-block's parent when a procedure is undrifted.  If this is
	not done the operations `block-ancestor-or-self?' and
	`block-nearest-common-ancestor' return the wrong answers, and
	consequently must be replaced with new operations that take the
	undrifting into account (yet another set of nearly-identical
	operations!).  
	
	Rather than do this, I attacked the problem of why clobbering the
	parent causes problems.  The losing scenario seems to be as
	follows: procedure A is a child of procedure B; procedure B and
	procedure C are siblings; procedure A is a free-caller of procedure
	C (and so is procedure B by transitivity); procedure B has drifted
	up one or more blocks, while A and C have not drifted at all.
	
	The problem occurs when A is examined before B for undrifting:
	because C is not accessible from A (due to B's drifting), it is
	undrifted.  Later, B is also undrifted (because it is also a
	free-caller of C); note that had B been undrifted before we looked
	at A there would have been no reason to undrift A.  Finally,
	`setup-block-types!' closes both A and B because they have been
	undrifted, which allows them both to reference their free
	variables; this reference is possible -because- the original parent
	was not changed when the undrifting occurred.  Had the original
	parent been changed at that time, the closing would have failed.
	
	Now many times the only reason that A and B are being closed is
	because of the undrifting -- there is really no reason for them to
	be closed at all (in these cases, we would have been better off
	never having tried to drift procedure A in the first place). 
	Furthermore, because this closing is bypassing the normal closing
	mechanism, some other inconsistencies are introduced, in particular
	the `virtual-closure?' bit is not cleared (it was the bug caused by
	this inconsistency which forced me to reexamine this code in the
	first place).
	
	OK, so let's try this again.  Suppose we -don't- close undrifted
	procedures unless there's some other reason to do so (which we can
	detect by looking at the `closure-context' or `closure-reasons'). 
	Then the way to avoid the losing scenario above is to guarantee
	that we undrift B before considering A for undrifting.	This is
	easily accomplished by performing a topological sort on the
	`free-callers'.  This sorting is sufficient because the decision to
	undrift A can only depend on ancestors who are also members of the
	`free-callers' set.
	
	So that's the story: I've added a topological sort of
	`procedure-free-callers', changed `undrift-procedure!' to
	immediately update the `procedure-closing-block', and changed
	`setup-block-types!' to base the closing decision on
	`procedure-closure-context' rather than (the now inaptly named)
	`close-procedure?'.

1989-09-22 05:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/missing.c (9.25): Fix a few random bugs.

1989-09-22 04:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: config.h (9.48), missing.c (9.24), psbmap.h (9.30):
	Add new switch `HAS_MODF', and conditionalize "missing.c" to use
	it.  Change makefile to include "missing.o".

1989-09-21 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.37): Work around bug in portable
	representation of flonums: the flonum 0.0 is written as "06 + 0". 
	But this program always reads two numbers after the sign, and
	furthermore treats the first one as the exponent, and the -second-
	as the size in bits.  This caused it to gobble up the type code of
	the next word by accident.

1989-09-21 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/primutl.c (9.52): Fix typo which caused segmentation
	violation on disk-restore.

1989-09-20 21:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/comcmp.scm (1.2): Upgrade to handle split
	compiled-code files.  Improve constants comparison.

1989-09-20 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intprm.c (1.1): Initial revision

1989-09-20 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: artutl.c (1.1), bignmint.h (1.1), bigprm.c (1.1),
	hard-par.c (1.1): Initial revision

1989-09-20 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11.h (1.4), x11base.c (1.7), x11graph.c (1.4),
	x11term.c (1.6), xdebug.c (9.26): Massive rewrite of microcode. 
	All new object macros and organization.  New number primitives to
	support R4RS-compatible number system.	This microcode requires
	runtime version 14.58 or later.

1989-09-20 19:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: lookup.h (9.44), memmag.c (9.40), missing.c (9.23),
	mul.c (9.27), object.h (9.32), prename.h (1.3), prim.c (9.33),
	prim.h (9.41), prims.h (9.36), primutl.c (9.51), psbmap.h (9.29),
	purify.c (9.40), purutl.c (9.37), regex.c (1.9), regex.h (1.4),
	returns.h (9.36), rgxprim.c (1.8), sample.c (9.24), scheme.h
	(9.30), scode.h (9.24), sdata.h (9.31), stack.h (9.27), starbase.c
	(1.3), starbasx.c (1.3), step.c (9.27), storage.c (9.44), string.c
	(9.33), syntax.c (1.20), syntax.h (1.7), sysprim.c (9.33), trap.h
	(9.42), types.h (9.31), unexec.c (9.22), pruxfs.c (9.36), utils.c
	(9.44), vector.c (9.32), winder.h (9.24): Massive rewrite of
	microcode.  All new object macros and organization.  New number
	primitives to support R4RS-compatible number system.  This
	microcode requires runtime version 14.58 or later.

1989-09-20 19:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.19), config.h (9.47), const.h (9.35),
	daemon.c (9.27), debug.c (9.34), default.h (9.32), dmpwrld.c
	(9.30), dump.c (9.29), edwin.h (1.4), extern.c (9.29), extern.h
	(9.33), fasdump.c (9.43), fasl.h (9.30), fasload.c (9.43), fft.c
	(9.27), fhooks.c (9.31), fixnum.c (9.28), flonum.c (9.27), future.c
	(9.27), futures.h (9.26), gc.h (9.29), gccode.h (9.41), gcloop.c
	(9.31), generic.c (9.30), history.h (9.25), hooks.c (9.37), hunk.c
	(9.26), image.c (9.29), image.h (9.23), intercom.c (9.27), intern.c
	(9.51), interp.c (9.52), interp.h (9.32), intrpt.h (1.7), list.c
	(9.28), load.c (9.28), locks.h (9.24), lookprm.c (1.4), lookup.c
	(9.42): Massive rewrite of microcode.  All new object macros and
	organization.  New number primitives to support R4RS-compatible
	number system.	This microcode requires runtime version 14.58 or
	later.

1989-09-20 19:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (11.1), bintopsb.c (9.40), breakup.c
	(9.22), findprim.c (9.41), ppband.c (9.35), psbtobin.c (9.36),
	sgx.c (1.7), sgx11.c (1.2), sgraph.h (1.5), sgraph_a.c (1.8),
	wsize.c (9.28), array.c (9.39), array.h (9.31), bchdmp.c (9.45),
	bchgcc.h (9.34), bchgcl.c (9.36), bchmmg.c (9.48), bchpur.c (9.45),
	bignum.c (9.28), bignum.h (9.25), bitstr.c (9.40), bitstr.h (1.6),
	bkpt.c (9.23), bkpt.h (9.27), boot.c (9.57), char.c (9.28),
	cmpint.h (10.3): Massive rewrite of microcode.	All new object
	macros and organization.  New number primitives to support
	R4RS-compatible number system.	This microcode requires runtime
	version 14.58 or later.

1989-09-20 12:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.53), fggen/fggen.scm
	(4.22), base/toplev.scm (4.20): Fix another bug in first class
	environment code when combined with compile-by-procedures.

1989-09-20 11:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.58): Microcode version 11 requires this
	runtime version.

1989-09-20 11:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/stream.scm (14.5): Change algorithm used to compute prime
	numbers to make it more efficient.

1989-09-20 11:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: io.scm (14.3), hash.scm (14.2), list.scm (14.9):
	Eliminate dependency on return value of modifier.

1989-09-15 14:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.51): Fix bug in 1d-table/alist, and add
	1d-table/for-each.

1989-09-15 13:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: prop1d.scm (14.4), version.scm (14.57): Fix bug in
	1d-table/alist, and add 1d-table/for-each.

1989-09-15 13:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: fggen/fggen.scm (4.21), machines/bobcat/make.scm-68040
	(4.52): Patch remaining bug in interaction between
	compile-by-procedures? and first class environment decomposition.
	
	For the time being, compile-by-procedures? is disabled within non
	top level first class blocks (ie. in-package and make-environment).
	 This should ultimately be fixed.

1989-09-13 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.51), fggen/canon.scm
	(1.7), fggen/fggen.scm (4.20): Fix bugs in fggen/{canon,fggen}.scm
	introduced when compiler:compile-by-procedure? was added.

1989-09-05 18:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: base/switch.scm (4.12), machines/bobcat/machin.scm
	(4.17), machines/vax/machin.scm (4.6), rtlgen/opncod.scm (4.31):
	Create switch COMPILER:OPEN-CODE-FLOATING-POINT-ARITHMETIC? in
	order to ensure Bobcat floating-point open-coding is only attempted
	for Bobcats.

1989-08-29 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/decls.scm (1.10): Fix bug in last change.

1989-08-29 16:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.82), evlcom.scm (1.18), utils.scm (1.20),
	make.scm (3.18): Setup error-handling when re-evaluating arguments
	(as in repeat-complex-command), and also when reading expressions
	from the keyboard.

1989-08-28 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/utils.scm (4.13), machines/bobcat/assmd.scm
	(1.36), machines/bobcat/compiler.sf (1.11),
	machines/bobcat/decls.scm (4.23), machines/bobcat/instr1.scm
	(1.67), machines/bobcat/instr2.scm (1.17),
	machines/bobcat/insutl.scm (1.7), machines/bobcat/lapgen.scm
	(4.21), machines/bobcat/machin.scm (4.16),
	machines/bobcat/make.scm-68040 (4.50), machines/bobcat/rules1.scm
	(4.25), machines/bobcat/rules2.scm (4.9),
	machines/bobcat/rules3.scm (4.17), machines/bobcat/rules4.scm
	(4.6): * Add Jinx's changes to support 6 bit type codes.

1989-08-28 14:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.34), psbtobin.c (9.35), wsize.c (9.27),
	bchmmg.c (9.47), bignum.c (9.27), char.c (9.27), config.h (9.46),
	const.h (9.34), edwin.h (1.3), extern.h (9.32), gctype.c (9.30),
	intern.c (9.50), list.c (9.27), lookup.h (9.43), memmag.c (9.39),
	object.h (9.31), prim.c (9.32), prims.h (9.35), psbmap.h (9.28),
	syntax.c (1.19), syntax.h (1.6), trap.h (9.41), types.h (9.30),
	utils.c (9.43), version.h (10.88): * Add Jinx's changes to support
	6 bit type codes.  Make these the default for HP 9000 series 300.
	
	* Update Ppband to handle compiled code.
	
	* Significant rewrite of parts of the bignum code.  This is the
	beginning of a redesign of this code.
	
	* Regularize some of the object selector macros.

1989-08-22 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sample.c (9.23): [no log message]

1989-08-21 15:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/compiler.pkg (1.24),
	machines/bobcat/compiler.sf (1.10), machines/bobcat/dassm1.scm
	(4.13), machines/bobcat/make.scm-68040 (4.49),
	machines/bobcat/rules3.scm (4.16), fggen/canon.scm (1.6),
	fggen/fggen.scm (4.19), fgopt/simapp.scm (4.5), rtlbase/rtline.scm
	(4.9), rtlbase/rtlobj.scm (4.7), rtlgen/rtlgen.scm (4.20): Change
	the compiler so that each top-level procedure in the input
	expression is compiled separately, producing a different
	compiled-code block for each.  The load-time linking is removed
	from the sub-blocks to be performed in the code for the top-level
	expression, thus allowing it to be discarded after the expression
	is evaluated; only the code needed by the procedures is retained.
	
	The old behavior of the compiler can be obtained by setting the
	switch `compiler:compile-by-procedures?' to #f.

1989-08-21 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (4.7), base/crsend.scm (1.2),
	base/crstop.scm (1.4), base/debug.scm (4.10), base/infnew.scm
	(4.5), base/switch.scm (4.11), base/toplev.scm (4.19): Change the
	compiler so that each top-level procedure in the input expression
	is compiled separately, producing a different compiled-code block
	for each.  The load-time linking is removed from the sub-blocks to
	be performed in the code for the top-level expression, thus
	allowing it to be discarded after the expression is evaluated; only
	the code needed by the procedures is retained.
	
	The old behavior of the compiler can be obtained by setting the
	switch `compiler:compile-by-procedures?' to #f.

1989-08-18 15:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.18), version.scm (14.56): Change the
	cold-load to do purification differently -- this is needed to
	guarantee that as much as possible gets purified, without purifying
	storage that is temporary for the cold-load.  This is done by
	leaving everything in the heap until the cold-load is essentially
	finished, then purifying everything at once.

1989-08-18 15:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.10): Abstract out the operation that decides
	how to purify compiled code, call it `load/purification'.  This is
	used by the cold-loader.

1989-08-18 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.12): (fasload/update-debugging-info):
	Change this so that it makes a single copy of the new filename
	which is shared among all of the compiled-code blocks in the file. 
	For per-top-level-procedure compilation, this makes a big
	difference.

1989-08-17 12:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.11): Make `load-debugging-info-on-demand?'
	affect only `compiled-procedure/name'.

1989-08-17 12:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/load.scm (14.9): Fix classic bug: incorrect interaction
	between stream and side-effect.

1989-08-17 11:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/butils.scm (4.3): (sf-conditionally): Don't echo "up to date"
	message unless specifically requested to.

1989-08-17 11:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/butils.scm (4.2): (sf-conditionally): Don't echo "up to date"
	message unless specifically requested to.

1989-08-17 10:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.10), load.scm (14.8), runtime.pkg
	(14.50), scode.scm (14.6), version.scm (14.55): * Compiler now
	knows how to emit a different form of `dbg-info-vector', which
	contains not only the compiled-code blocks (as before), but also a
	pointer which is the root to be used if the code is to be purified.
	 The runtime system needed to be changed to accomodate this.
	
	* Change default for `load-debugging-info-on-demand?' back to
	false.
	
	* Fix `scode-constant?' to handle compiled-code-entry objects
	correctly.

1989-08-17 09:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.14): Change "FASDumping" message to
	"Dumping", to match change to "FASLoading" message.

1989-08-17 08:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.17): Must replicate export from `(package)'
	here.

1989-08-17 03:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.8): Recode procedures that use `caar',
	`cadr', etc. to use sequences of `car' and `cdr'.  This produces
	more efficient code since `sf' won't inline-code these procedures
	in this file because they are defined here.

1989-08-16 07:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.6): Optionally allow comments to appear
	with bogus syntax.

1989-08-15 21:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.8): For #@<n> -- if the object referred to
	is SCode, quote it so that evaluating the result of the parse
	produces the object.

1989-08-15 11:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.12): Fix stupid typo.

1989-08-15 09:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: contin.scm (14.4), gc.scm (14.4), gcdemn.scm (14.3),
	gcnote.scm (14.5), global.scm (14.13), infutl.scm (1.9), load.scm
	(14.7), pp.scm (14.8), rep.scm (14.12), runtime.pkg (14.49),
	savres.scm (14.10), stream.scm (14.4), udata.scm (14.11),
	uenvir.scm (14.12), unsyn.scm (14.5), version.scm (14.54): *
	Implement `entity' data abstraction to manipulate the microcode's
	data type of that name.  Change everything to use it.
	
	* Implement new procedure `gc-clean' that interleaves `gc-flip' and
	`trigger-secondary-gc-daemons!' until everything is reclaimed. 
	Change `disk-save' to use it.  Cause this operation to be invoked
	when running out of memory.
	
	* Add secondary GC daemons to clean up debugging info, and to reset
	`prime-number-stream'.
	
	* Extend the procedures `procedure-lambda' and
	`procedure-environment' to handle compiled procedures by using
	debugging information if it is available.
	
	* Extend all the procedure operations to handle entities.
	
	* Change `pp', `pa', and `->environment' to accept any procedure as
	an argument; previously these only accepted compound procedures.
	
	* Change the unsyntaxer to handle compiled expressions by using
	their debugging source code if it is available.
	
	* Change name of `*compiler-info/load-on-demand?*' to
	`load-debugging-info-on-demand?', and make it be #T by default.
	
	* Change `load' to print "loading..." message for source files as
	well as binary files.  These messages are controlled by
	`load/suppress-loading-message?'.
	
	* Change `environment-bound-names' to ignore the binding which is
	used to hold an environment's package.
	
	* Fix bug in `make-null-interpreter-environment' which prevented it
	from being called more than once.

1989-08-15 08:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/scode.scm (4.7), fggen/fggen.scm (4.18),
	fggen/canon.scm (1.5), machines/bobcat/make.scm-68040 (4.48):
	Canonicalization of expressions causes certain expressions to be
	rewritten in a form that is unsuitable for use as the debugging
	source code.  Change the canonicalization code to save the original
	code.  Change the fg-generator to use the original code as the
	debugging source instead of the code that it is compiling.

1989-08-15 06:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/xeval.scm (1.2): Special case: don't bother generating a
	new environment when evaluating a constant.

1989-08-15 03:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.46): Bug report from Jinx: `prealloc' may
	change the file pointer, so the hp-ux code that uses it must check.

1989-08-14 07:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.17): [no log message]

1989-08-14 06:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufwin.scm (1.283), edwin.pkg (1.14), modwin.scm (1.32),
	wincom.scm (1.96): Move some of the window-control variables to the
	files in which they are used.  Rename `cursor-centering-threshold'
	to `scroll-step' for compatibility with Emacs.	Delete the
	disfunctional command `toggle-screen-video'.

1989-08-14 05:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.136): Suppress redisplay of minibuffer
	messages during keyboard-macro execution.

1989-08-14 05:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.13): Export variable `completion-auto-help' to
	(edwin) package.

1989-08-14 05:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.92): Sort list of key bindings before
	printing it.

1989-08-14 05:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwfs.scm (1.7), edwin/bufwin.scm (1.282),
	edwin/bufwiu.scm (1.12), edwin/bufwmc.scm (1.7), edwin/calias.scm
	(1.8), edwin/comtab.scm (1.57), edwin/decls.scm (1.9),
	edwin/edwin.pkg (1.12), edwin/grpops.scm (1.7), edwin/hlpcom.scm
	(1.91), edwin/image.scm (1.125), edwin/keymap.scm (1.8),
	edwin/loadef.scm (1.6), edwin/modefs.scm (1.122), edwin/motion.scm
	(1.81), runtime/rgxcmp.scm (1.102), edwin/struct.scm (1.71),
	edwin/utils.scm (1.19), edwin/utlwin.scm (1.54), edwin/window.scm
	(1.150): * Rewrite core group operations, image operations, window
	operations, and the regular-expression compiler to use fixnum
	arithmetic.  This has a pronounced performance effect.
	
	* Change "decls" to pass integrable-procedure definitions between a
	few crucial files.
	
	* New variable `enable-emacs-key-names' controls whether keys are
	displayed using Emacs-style names or Scheme-style names.  The
	default is Emacs-style.
	
	* C-h C-b now runs `describe-bindings' as in Emacs.

1989-08-14 05:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.47): Change file-loading prompts to use
	trailing dots.

1989-08-13 05:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.24): When subtracting
	register A from register B, where register B is not dead, must
	always allocate a new alias.  Stupid trick that was being pulled
	involving `exg' instruction could never have worked.

1989-08-12 04:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: ed-ffi.scm (1.1), display.scm (1.1): Initial revision

1989-08-12 04:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autold.scm (1.46), basic.scm (1.104), buffer.scm (1.136),
	comred.scm (1.81), curren.scm (1.86), decls.scm (1.8), editor.scm
	(1.192), edtstr.scm (1.7), edwin.ldr (1.7), edwin.pkg (1.11),
	evlcom.scm (1.17), filcom.scm (1.139), hlpcom.scm (1.90), input.scm
	(1.81), make.scm (3.16), modefs.scm (1.121), rename.scm (1.3),
	unix.scm (1.10), utils.scm (1.18), xcom.scm (1.3), xterm.scm (1.8):
	* Change internal names of various user procedures to correspond to
	the external names:
	
		edwin			edit
		edwin-discard-state!	reset-editor
		edwin-reset		create-editor
		edwin-reset-args	create-editor-args
		edwin-set-display!	set-editor-display-type!
	
	The external interface to Edwin now consists of the following
	procedures:
	
		(EDIT)
		(RESET-EDITOR)
		(RESET-EDITOR-WINDOWS)
		As before.
	
		(EDITOR-DISPLAY-TYPE)
		Returns the display-type of the current editor.  This is
		either a symbol or #F.
	
		(EDITOR-DISPLAY-TYPES)
		Returns the names of all the known display types, in a
	list.
	
		(CREATE-EDITOR DISPLAY-TYPE . ARGS)
		Initializes a display of the given type, passing the args
	to
		the screen-construction code.
	
		CREATE-EDITOR-ARGS
		This variable is a list of arguments to be passed to
		`create-editor' if it is necessary for `edit' to call it.
	
	* Add new command `define-command', which is solely a placeholder
	for the documentation string it possesses.
	
	* Implement editor variable `inhibit-startup-message' -- see the
	documentation string.
	
	* `enable-transcript-buffer' is now #F by default -- it is normally
	enabled in Scheme-Interaction mode only.
	
	* Change the definitions of the commands `set-environment' and
	`set-syntax-table' to set the editor variables `scheme-environment'
	and `scheme-syntax-table'.  The old behavior of these commands is
	available via the new commands `set-repl-environment' and
	`set-repl-syntax-table'.  Other new commands are
	`set-default-environment' and `set-default-syntax-table'.
	
	* Change definition of `scheme-syntax-table', allowing it to be a
	symbol which is regarded as a variable to be evaluated relative to
	the evaluation environment.
	
	* Add init files, which are found in "~/.edwin".  The new global
	variable `inhibit-editor-init-file?' (defined in the system global
	environment), prevents your init file from being loaded if it is
	true.
	
	* Add new "find-file initialization" hack: this is invoked whenever
	`find-file' or `revert-buffer' is done.  The reason for this hack
	is to allow a database file to contain evaluation environment and
	syntax-table information for the editor.
	
	When a `find-file' (or `revert-buffer') is done, the editor looks
	in the directory of the file for one of two files:
	
		1. If the file's name is "foo.scm", the editor looks for a
		file "foo.ffi" (-only- if the type is ".scm").	Otherwise,
	
		2. The editor looks for the file ".edwin-ffi".
	
	If one of these files are found, it is loaded into the editor (if
	the first file is found, the second is ignored).  The loading is
	performed in the (edwin) package with `edwin-syntax-table'.  The
	result of loading the file must be a Scheme procedure which accepts
	no arguments; this procedure will be added to the buffer's
	initializations, to be performed the next time the buffer is
	selected.
	
	The procedure `standard-scheme-find-file-initialization' is useful
	in this regard.
	
	It should be straightforward to automatically generate these files
	from the package-modeller.
	
	* The binding for `describe-command' has been changed from `C-h d'
	to `C-h f' for compatibility with Emacs.
	
	* Under some circumstances, files in the user's home directory tree
	will be displayed using the "~/" notation.
	
	* Implement overlooked command `x-set-position'.
	
	-------------------------------------------------------------------
	---
	
	* Change definition of `load-edwin-file' procedure to make it more
	generally useful for loading files into the editor.  Similar
	changes to the `load-file' and `load-library' commands.
	
	* Bullet-proof the evaluation environment and syntax-table code so
	that they signal an editor-error if unable to be resolved to the
	appropriate kind of object.
	
	-------------------------------------------------------------------
	---
	
	* Cause a modeline-event to occur whenever a buffer's clipping is
	changed.
	
	* Change handling of `edwin-initialization' so that the code is run
	inside the command-reader loop -- thus making sure that all of the
	editor's dynamic-state is bound.
	
	* Fix bug in command-reader: undo boundaries were not being marked
	when they should have been.
	
	* Change `kill-buffer' to pick a different replacement buffer for
	each of its windows, if possible.

1989-08-12 04:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.5): * Change `environment-link-name' to
	call `->environment' on its two environment arguments.
	
	* Move `vector-binary-search' to the global environment.  Fix a bug
	in it -- a confusion between the < used for comparing integers, and
	that for comparing keys.
	
	* New variable `load/suppress-loading-message?' prevents the file
	loader from printing the "loading -- done" messages.
	
	* Implement `pathname-relative?' which accepts two pathnames; if
	the second has a directory part which is a "prefix" of the first,
	this returns a copy of the first pathname with the "prefix"
	removed.  Example:
	
	    (pathname-relative? (->pathname "/usr/bin")
				(->pathname "/usr/"))
		   ==> #[pathname 5 "bin"]

1989-08-12 04:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: version.scm (14.53), global.scm (14.12), infutl.scm
	(1.8), load.scm (14.6), pathnm.scm (14.6), runtime.pkg (14.48): *
	Change `environment-link-name' to call `->environment' on its two
	environment arguments.
	
	* Move `vector-binary-search' to the global environment.  Fix a bug
	in it -- a confusion between the < used for comparing integers, and
	that for comparing keys.
	
	* New variable `load/suppress-loading-message?' prevents the file
	loader from printing the "loading -- done" messages.
	
	* Implement `pathname-relative?' which accepts two pathnames; if
	the second has a directory part which is a "prefix" of the first,
	this returns a copy of the first pathname with the "prefix"
	removed.  Example:
	
	    (pathname-relative? (->pathname "/usr/bin") 
				(->pathname "/usr/"))
		   ==> #[pathname 5 "bin"]

1989-08-11 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (4.3): environment-link-name is no longer a
	primitive.

1989-08-11 12:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.80), editor.scm (1.191): Cause
	`edwin-initialization' to be executed inside the command loop so
	that all of the editor's dynamic-state is bound.

1989-08-11 07:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: buffer.scm (1.135), buffrm.scm (1.34), bufmnu.scm
	(1.111), bufwfs.scm (1.6), bufwin.scm (1.281), bufwiu.scm (1.11),
	comman.scm (1.62), comtab.scm (1.56), debuge.scm (1.38), editor.scm
	(1.190), edtfrm.scm (1.79), edtstr.scm (1.6), edwin.pkg (1.10),
	macros.scm (1.49), make.scm (3.15), struct.scm (1.70), wincom.scm
	(1.95), xcom.scm (1.2): * Arrange for local bindings of current
	buffer to be undone when leaving the editor; this prevents the
	local bindings from becoming global when (reset-editor) is done. 
	Perhaps it might be useful to remember the original global binding,
	and reset each variable to that?
	
	* Change the commands `list-buffers' and `buffer-menu' to accept a
	prefix arg which limits their listings to buffers that are visiting
	files.	Perhaps buffer-menu mode should define the g key as Dired
	does?
	
	* Change mouse button events to invoke commands in the normal way,
	binding a `current-button-event' to tell the commands where the
	mouse was when they occurred; this event defaults to the location
	of point so that these commands make sense when invoked by other
	means.	Cause the editor to beep and do nothing if a mouse button
	is not bound to any command, and if the button is located in the
	"decoration" of some editor window (i.e. the modeline or vertical
	border).
	
	* Change `define-key' to accept command-names (or commands) as
	arguments when defining mouse buttons.	Change `define-key',
	`define-prefix-key', and `define-default-key' to accept mode
	objects as well as mode-names.
	
	* Add new commands:	debug-clean-marks      
	debug-show-standard-marks
	
	* Change the buffer redisplay code so that buffer-cursor-y is set
	only when a buffer is disconnected from a window.  Further, save
	point's index with the coordinate, and ignore the information if
	point changes before the information is used.
	
	* Implement new operation `mark-temporary!', which removes a
	permanent mark from the marks list.  Use this operation to get rid
	of the marks used by buffer-windows when they are no longer in use.
	 In order for this to work, change the buffer-window code so that
	it never passes one of these marks to anyone.  The only
	user-visible change is to replace the operations
	`window-start-mark' and `window-end-mark' with `window-start-index'
	and `window-end-index'.
	
	* Add new procedure `clean-group-marks!' to delete GC'ed marks from
	the marks list.

1989-08-11 07:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modwin.scm (1.31): Undo recent change which tried to
	replicate Emacs' algorithm for deciding when to use inverse-video
	in the modeline.  The attempt failed, and I don't see an obvious
	way to make it work.

1989-08-11 07:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modlin.scm (1.2): Use new procedure `integer-round' when
	computing the buffer position percentage for the modeline.

1989-08-11 07:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/strtab.scm (1.42): Formatting.

1989-08-11 07:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/info.scm (1.94): Formatting.

1989-08-11 06:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: utils.scm (1.17), filcom.scm (1.138): Formatting.

1989-08-11 06:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: comred.scm (1.79), basic.scm (1.103): Formatting.

1989-08-10 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: gc.scm (14.3), make.scm (14.16), packag.scm (14.9),
	runtime.pkg (14.47), version.scm (14.52): Implement
	`(flush-purification-queue!)', which tries to purify anything that
	is in the purification queue.  When this procedure returns, the
	queue should be empty.	Call this procedure after the cold load,
	and after the "system-loader", to guarantee that the items loaded
	are purified before being used.

1989-08-10 22:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.47): [no log message]

1989-08-10 22:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm1.scm (4.12):
	(disassembler/write-compiled-code-block): don't require debugging
	info.  The disassembler can run without it.

1989-08-10 11:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.11): Fix bug in previous changes.

1989-08-10 07:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.17): Fix longstanding bug in
	compilation of predicates.  Expressions like this
	
	  (if (if (bar numerator)
		  (foo denominator)
		  (not (foo denominator)))
	      numerator
	      denominator)
	
	would compile incorrectly by making both calls to `foo' have the
	same continuation.  This should have been noticed as an error
	because the continuation entry hooks for that continuation were
	attached to both expressions: when they were combined with the call
	to `bar' the hooks were used to attach the continuation to the
	enclosing expression -- but each side of the test was attached
	twice.	Error checking in the node-attachment code would have
	caught this one at compile time.
	
	The new code generates a new continuation for the call to `foo'
	whose result is inverted, and then codes the `not' using a PCFG and
	two constants -- all of which gets folded out later, resulting in
	the desired code.

1989-08-10 07:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlopt/rcserq.scm (4.5), rtlopt/rcseht.scm (4.8),
	rtlbase/rtlobj.scm (4.6): Change unparsers so that type names are
	printed in the standard case for symbols.

1989-08-10 07:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: blocks.scm (4.11), ctypes.scm (4.13), enumer.scm
	(4.3), lvalue.scm (4.15), object.scm (4.7), proced.scm (4.14),
	rvalue.scm (4.6), subprb.scm (4.7): Change unparsers so that type
	names are printed in the standard case for symbols.

1989-08-10 04:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.46), version.scm (14.51): Add new
	operations to do integer division followed by a rounding operation.
	 They are like a combination of / and the respective rounding
	operation, except that there are no non-integer intermediate
	results.

1989-08-10 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/window.scm (1.149): (inferior-containing-coordinates): the
	maximum addressable coordinate of a window is one less than the
	size of the window.

1989-08-10 00:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: modes.scm (1.25), comman.scm (1.61), buffer.scm (1.134):
	Change unparser methods for buffers, commands, variables, and modes
	to show the object's name.

1989-08-09 10:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.133): Fix typo in previous change.

1989-08-09 09:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.10): Fix typo in previous change.

1989-08-09 09:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modlin.scm (1.1): Initial revision

1989-08-09 09:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: autold.scm (1.45), bufcom.scm (1.83), buffer.scm (1.132),
	bufout.scm (1.3), comman.scm (1.60), comred.scm (1.78), curren.scm
	(1.85), artdebug.scm (1.2), decls.scm (1.7), edwin.ldr (1.6),
	edwin.pkg (1.9), evlcom.scm (1.16), image.scm (1.124), info.scm
	(1.93), intmod.scm (1.36), iserch.scm (1.7), make.scm (3.14),
	modefs.scm (1.120), modes.scm (1.24), modwin.scm (1.30), prompt.scm
	(1.135), schmod.scm (1.13), unix.scm (1.9), utils.scm (1.16),
	winout.scm (1.4): * Major overhaul of evaluation commands.  Now the
	transcript buffer is used more uniformly, and by default it is
	turned on.  The name and mode of the transcript buffer can be set
	by variables, which are initially set to use "*scratch*" in
	scheme-interaction mode.  Appropriate hooks have been added to
	allow scheme-interaction to share virtually all of the evaluation
	and transcript code with the rest of the evaluation commands.  The
	end result of all of these changes is that the evaluation commands
	work much more like the Emacs/Scheme interface.
	
	New command `select-transcript-buffer' is bound to C-c C-s.
	
	* Implement `mode-line-format'; see that variable's documentation
	for details.  Change "Info" to use it.	Also implement associated
	variables:  global-mode-string	    mode-line-buffer-identification
		mode-line-modified	mode-line-procedure    
	mode-line-process
	
	* Rewrite the image code to allow the starting index and column to
	be specified.  This will be used later when horizontal scrolling is
	implemented.  Change name of `make-image' to `string->image'. 
	Implement new operations:	  (string-head->image string start
	start-column)  (string-representation string start-column)    
	(substring-representation string start end start-column)
	
	* Change `prompt-for-expression' and `prompt-for-expression-value'
	so that #F is a valid default value.  The default value argument is
	now optional, and the only way to have no default is to call the
	procedures without that argument.
	
	* Implement `fresh-line' operations for output-ports to marks and
	to the current point.  Add new procedures to support them:   
	(fresh-line #!optional port)	(fresh-lines n #!optional port)    
	    (mark->output-port mark #!optional buffer)
	
	* Change `prompt-for-yes-or-no?' to erase the input if it is
	neither "yes" or "no".	This is now consistent with Emacs.
	
	* Change command-history display to use new feature in runtime
	system that unparses objects such that they can be read back in.
	
	* Implement new procedures:	(scode-eval-with-history scode
	environment)	 (string->temporary-buffer string name) 
	(current-buffer? buffer)	(->command object)	(->variable
	object)     (->mode object)

1989-08-09 08:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwmc.scm (1.6): Fix editing error from last changes.

1989-08-09 07:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: boot.scm (14.3), runtime.pkg (14.45), unpars.scm
	(14.13), version.scm (14.50): Implement new flag
	`*unparse-with-maximum-readability?*' which causes the unparser to
	output `#@<n>' for things that would otherwise print out as
	unreadable representations.
	
	Fix some bugs in the `define-structure' constructor options.

1989-08-09 07:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.5): [no log message]

1989-08-08 22:13  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.7): [no log message]

1989-08-08 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/artdebug.scm (1.1): Initial revision

1989-08-08 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.9): Fix some inconsistencies in the
	constructor option interactions.

1989-08-08 07:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utlwin.scm (1.53): Don't call `subscreen-clear!' if the
	rectangle has zero area.

1989-08-08 06:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.102), buffer.scm (1.131), buffrm.scm (1.33),
	bufwin.scm (1.280), bufwiu.scm (1.10), bufwmc.scm (1.5), calias.scm
	(1.7), comman.scm (1.59), comred.scm (1.77), curren.scm (1.84),
	editor.scm (1.189), edtfrm.scm (1.78), edtstr.scm (1.5), edwin.pkg
	(1.8), fill.scm (1.45), lincom.scm (1.104), macros.scm (1.48),
	make.scm (3.13), modefs.scm (1.119), sercom.scm (1.55), utlwin.scm
	(1.52), wincom.scm (1.94): * Implement `save-buffers-kill-edwin'
	which kills Edwin and returns to Scheme.  This is bound to C-x c in
	fundamental mode.
	
	* Change `unmap-alias-char' to leave the following characters
	unchanged: tab, linefeed, page, return, altmode.  This compensates
	for the previous change to `ascii-controlified?'.
	
	* Implement `editor-frame-windows' which returns all of the
	buffer-frames which are inferiors of an editor-frame.
	
	* Implement `all-screens', `all-editor-frames', and `all-windows',
	which return lists of all of the respective objects.
	
	* The procedure `(window-redraw! window redraw-type)' has been
	changed.  Now, it delays the actual work until update time, and
	`redraw-type' can be one of:
	
	value			meaning -----			-------
	'START			preserve the start position of the window
	'POINT			      preserve the point position of the
	window 'BUFFER-CURSOR-Y      move point to last known position, or
	recenter y			  move point to the y'th row other 
			      center the point vertically in the window
	
	* Implementation of `truncate-lines' functionality.  The following
	changes are in support of this:
	
	* Implementation of editor variable "assignment daemons" which
	allow some arbitrary code to be executed whenever a specific
	variable is assigned.
	
	* Significant overhaul of local-variable binding:
	
	** Implementation of "per-buffer" variables; that is, variables
	which become buffer-local whenever they are set.  The new special
	form `define-variable-per-buffer' supports this functionality.	The
	following variables are defined as "per-buffer":
	
		fill-column
		left-margin
		tab-width
		case-fold-search
		truncate-lines
	
	** Implementation of new operations to access the local and default
	value of a variable:
	
		(variable-local-value? buffer variable)
		(variable-local-value buffer variable)
		(set-variable-local-value! buffer variable value)
		(variable-default-value variable)
		(set-variable-default-value! variable value)

1989-08-07 22:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.11): Fix typo in `stack-ccenv/parent'.

1989-08-07 21:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.8): [no log message]

1989-08-07 21:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.19): In
	`continuation/next-continuation-offset', check to see if
	popping-limit corresponds to continuation that is always known.  If
	so, keep searching up the stack for another continuation.

1989-08-07 04:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: basic.scm (1.101), calias.scm (1.6), comred.scm (1.76),
	decls.scm (1.6), dired.scm (1.104), editor.scm (1.188), edwin.ldr
	(1.5), edwin.pkg (1.7), evlcom.scm (1.15), filcom.scm (1.137),
	input.scm (1.80), make.scm (3.12), modefs.scm (1.118), schmod.scm
	(1.12), unix.scm (1.8): * Implemented new editor-based debugger,
	which uses the standard debugger to generate its presentations (by
	means of new hooks in the runtime system).  The debugger can be
	invoked manually by the command `browse-continuation', or
	automatically by setting one of the following variables true:
	
	debug-on-evaluation-error	error during evaluation
	debug-on-editor-error		editor error (user error)
	debug-on-internal-error 	      editor bug
	
	Normally `debug-on-evaluation-error' is true and the others are
	false.
	
	* Controlification redone so that controlification of all ASCII
	control characters is uniform.	Previously characters such as
	newline and page were handled specially.  The net result of this is
	that controlification of an ASCII control character has no effect.
	
	* C-x C-c is now bound to a command which exits Scheme and returns
	to the unix shell.
	
	* All messages are cleared immediately after reading the first
	character of a command key sequence.  This is similar to the action
	of GNU Emacs, and prevents non-temporary messages from sticking
	around for a long time.
	
	* Dired now handles symbolic links specially, showing the file
	linked to in the usual way.
	
	* Bug fix in `clear-message': this procedure now preserves the
	command-prompt; previously it was clearing both the message and the
	command-prompt.
	
	* Bug fix in "cterm": the `move-cursor!' operation must move the
	cursor immediately if an update is not in effect.
	
	* Bug fix in `revert-buffer': can't assume that the buffer being
	reverted is current.
	
	* Bug fix: `with-output-to-string' had incorrect indentation
	method.
	
	* Bug fix: typo in dired sorting routine.

1989-08-07 03:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgcmd.scm (14.6), dbgutl.scm (14.8), debug.scm
	(14.15), emacs.scm (14.3), global.scm (14.11), make.scm (14.15),
	packag.scm (14.8), pp.scm (14.7), rep.scm (14.11), runtime.pkg
	(14.44), system.scm (14.6), version.scm (14.49), where.scm (14.7):
	* Major rewrite of `debug' and `where' to allow their code to be
	used as a presentation mechanism for the editor.  The basic new
	design has these features:
	
	** All commands now accept a state argument, which they manipulate,
	allowing the entire debugger state to be passed around easily.
	
	** All output from the commands is wrapped by the procedure
	`presentation', which can be grabbed to control the presentation
	characteristics.  For example, the editor uses this hook to clear
	the debugger buffer, change current-output-port to go to that
	buffer, and then reset the modified flag after the presentation is
	complete.
	
	** "Failure" conditions generated by the debugger are signalled
	through the new procedure `debugger-failure', which can be grabbed.
	 The editor grabs this and binds it to `editor-failure'.
	
	** Advisory messages generated by the debugger are signalled
	through the new procedure `debugger-message', which can be grabbed.
	 The editor grabs this and binds it to `editor-message'.
	
	* The contracts for `prompt-for-confirmation?' and
	`prompt-for-expression' have been changed to make them compatible
	with the editor's versions of these procedures.
	
	* The package loader no longer offers the "load interpreted?"
	option.  This is controlled by a flag which can be set should this
	option be desired.  Similarly, the cold-loader no longer offers
	this option -- in that case you must move or delete the ".com"
	files to get an interpreted cold-load.
	
	* A new operation `pretty-print' is similar to `pp' except that it
	doesn't print a prefix newline and it does nothing special about
	hash numbers or named structures.

1989-08-06 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.35): `file-attributes' should use lstat
	instead of stat.

1989-08-06 03:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/anfile.scm (1.3): Enable memoization -- it's a great time
	saver.

1989-08-03 23:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.100): Fix `suspend-scheme' command so that it
	properly exits the editor before leaving Scheme.

1989-08-03 23:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: unix.scm (1.7), dired.scm (1.103): In Dired, sort files
	in standard unix fashion.  Change directory readers to use new
	primitive `directory-close' to guarantee that the directory reader
	is cleaned up correctly.

1989-08-03 22:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.9): Change error message from "Bound
	variable" to "Illegal to rebind variable".

1989-08-03 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.4): Teach unsyntaxer to recognize named LET
	and unsyntax it as such.

1989-08-03 22:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxdir.scm (14.4): Use new primitive `directory-close' to
	guarantee that the directory-reader is correctly cleaned up when
	aborted.

1989-08-03 22:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.87): Add new primitive `directory-close'.

1989-08-03 19:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.9): Don't generate
	".cref" file by default.

1989-08-03 19:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/sf.sf (4.4), edwin/edwin.sf (1.4): Don't generate ".cref" file
	by default.

1989-08-03 19:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: loadef.scm (1.5), info.scm (1.92), hlpcom.scm (1.89),
	autold.scm (1.44), paths.scm (1.4): Change library pathnames to be
	relative to `(system-library-directory-pathname)' so that they will
	dynamically changed depending on the microcode's defaults.

1989-08-03 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/cref.sf (1.2): Don't generate "cref.cref" by default.

1989-08-03 19:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/toplev.scm (1.3): `cref/generate-constructors' should write
	the ".glob" file also.

1989-08-03 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: anfile.scm (1.2), make.scm (1.5): Don't generate ".free"
	files by default.

1989-08-03 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.3): Don't generate "runtim.cref" by
	default.

1989-08-03 19:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.48): Extend debugger to allow arbitrary
	evaluation in compiled code environments.  This is done by the
	trick of rewriting SCode, replacing references to compiled-code
	variables with combinations that do the reference.
	
	Fix bug in compiled-code frame parser.
	
	Change `print-gc-statistics' to show info about constant and heap
	space in use.
	
	New operation `system-library-directory-pathname' provides standard
	way to find run-time library files.

1989-08-03 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.43): Add new operations:
	
	    environment-assign!
	    environment-assignable?
	    make-null-interpreter-environment
	    extended-scode-eval
	    system-library-directory-pathname

1989-08-03 19:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.14): Add initialization for new operation
	`extended-scode-eval'.

1989-08-03 19:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/udata.scm (14.10): Add new operation to clobber
	compiled-closure frames.

1989-08-03 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: pathnm.scm (14.5), option.scm (14.5): Add new operation
	`system-library-directory-pathname' which standardizes where to
	find various run-time library files.

1989-08-03 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcnote.scm (14.4): Change `print-gc-statistics' to show
	the current amount of constant and heap in use.

1989-08-03 19:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/xeval.scm (1.1): Initial revision

1989-08-03 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: debug.scm (14.14), where.scm (14.6), rep.scm (14.10),
	dbgcmd.scm (14.5), global.scm (14.10): Allow compiled-code
	environments to be used in evaluation and REP loops.

1989-08-03 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.10): Add new operations
	`environment-assignable?' and `environment-assign!' which allow
	individual variables in an environment to be assigned.

1989-08-02 21:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.6): Export `message-args->string' to (edwin)
	package.

1989-08-02 21:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.91), make.scm (3.11): Extensive changes to
	permit use of indirect Info files.

1989-08-02 21:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.99): Implement variable
	`debug-on-editor-error' which causes editor errors to be signalled
	as Scheme errors for debugging.

1989-08-02 21:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/loadef.scm (1.4): Move definitions of
	`info-tags-table-{start,end}' to "info.scm".

1989-08-02 21:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.75): For "s" interactive command letter,
	allow null string to be returned.

1989-08-02 13:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.45): Adjust "umax" processor entry.

1989-08-02 12:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/paths.scm (1.3): Adjust paths to be consistent with rest of
	release.

1989-08-01 21:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/make.scm (4.45): Initialize disassembler
	macros.

1989-08-01 13:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.8): Bug: code to extract
	ASCII from a char object was assuming that the machine was
	big-endian, rather than little-endian, and thus extracted the type
	code rather than the ASCII code.

1989-07-30 19:59  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.38): [no log message]

1989-07-26 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11base.c (1.6), x11.h (1.3): Change (void *) pointer
	to (char *) since the former isn't supported on all compilers yet.

1989-07-25 09:05  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.sf (1.8), compiler.pkg
	(1.23): Open-coding of floating-point arithmetic.

1989-07-25 08:40  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/lapgen.scm (4.20),
	machines/bobcat/decls.scm (4.22), machines/bobcat/dassm3.scm (4.7),
	machines/bobcat/dassm2.scm (4.13), base/macros.scm (4.7.1.2),
	back/regmap.scm (4.8), back/lapgn2.scm (1.10): Open-coding of
	floating-point arithmetic.

1989-07-25 08:37  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlty1.scm (4.14), rtlbase/rtlexp.scm (4.12),
	rtlbase/rtlcon.scm (4.17), rtlbase/rgraph.scm (4.5),
	machines/bobcat/rules2.scm (4.8), machines/bobcat/rules1.scm
	(4.23), machines/bobcat/make.scm-68040 (4.46),
	machines/bobcat/machin.scm (4.15): Open-coding of floating-point
	arithmetic.

1989-07-25 08:32  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: rtlopt/rcse1.scm (4.18), rtlgen/opncod.scm (4.30):
	Open-coding of floating-point arithmetic.

1989-07-25 08:31  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/rtlopt/rinvex.scm (1.2): Open-coding of floating-point
	arithmetic.  Extend invertible expression elimination to detect
	invertible expression pairs of the form   (a (b (c x))) ==> x where
	a and b together cancel c, or b and c together cancel a.

1989-07-25 08:26  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: flinstr2.scm (1.1), flinstr1.scm
	(1.1): Initial revision

1989-07-25 08:05  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/rtlbase/valclass.scm (1.1): Initial revision

1989-07-25 04:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.42), bintopsb.c (9.39): Alignment fixes.

1989-07-24 13:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn3.scm (4.4): Don't use `intern' for constant
	labels.

1989-07-20 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/forpkg.scm (1.4): Eliminate "unreferenced bound variable"
	warning.

1989-07-18 16:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simple.scm (4.5): Bug: `walk/node' was being
	called with an incorrect number of arguments.

1989-07-17 20:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.47): [no log message]

1989-07-13 22:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.5): Spectrum compiler won't allow casts on
	lvalues.

1989-07-13 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.42), debug.scm (14.13), framex.scm
	(14.9): Fix bug: can't assume that argument to
	`debugging-info/noise' is a pair.

1989-07-11 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/desenv.scm (4.3): [no log message]

1989-07-11 20:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.7.1.1): [no log message]

1989-07-11 19:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/compiler.cbf (1.3): [no log message]

1989-07-11 19:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/vax/: compiler.pkg (1.5), compiler.sf (1.2):
	[no log message]

1989-07-05 17:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intrpt.h (1.6): Fix incorrectly written call to
	`critical_section_hook'.

1989-07-05 15:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.4): Eliminate random use of & on character
	array.

1989-07-05 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intern.c (9.49): Add \n\ as appropriate to
	documentation strings of primitives.

1989-07-05 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.39): Missing assigment in
	bit-substring-find-next-set-bit.

1989-07-05 14:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gc.h (9.28): Can't use #error because not all cpp's
	support it.

1989-07-02 01:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.38): Two problems with print_a_char: was
	not checking character to see if it was in domain of character type
	predicates, and extended character representation didn't match what
	Psbtobin is looking for -- used hex instead of decimal.

1989-07-01 08:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.86): Prepare for beta test 7.0.0

1989-07-01 07:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.5): Merge from branch 1.4.1.3

1989-06-27 06:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/graphics.scm (1.2): Fix bug in sense of graphics
	buffering.  Previously it worked correctly by default, but the
	enable/disable operations had the wrong sense.	Also, flush the
	buffer when it is disabled.

1989-06-27 06:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.3): Implement `get-default' operation on
	X graphics windows, and allow a string to be used as a display
	argument when opening a window.

1989-06-27 06:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11base.c (1.3), x11graph.c (1.3), x11term.c
	(1.4.1.3): Change resource handling to use property names similar
	to those used by GNU Emacs.

1989-06-27 06:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11.h (1.2): Export procedure `x_get_default'.

1989-06-23 17:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/x11graph.scm (1.2): Conditionalize running of
	x-close-all-displays on its being implemented.

1989-06-23 17:13  ojn

	* runtime/runtime.pkg (14.41): Export the x-graphics operations to
	the global package.  Shouldn't have deleted them in the first
	place.

1989-06-23 00:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11base.c (1.2): Change X resource names to conform to
	(what appear to be) standards.

1989-06-22 23:47  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.37): [no log message]

1989-06-22 20:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/starbase.scm (1.1): Initial revision

1989-06-22 19:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: x11graph.scm (1.1), graphics.scm (1.1): Initial
	revision

1989-06-22 19:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: make.scm (14.13), option.scm (14.4), runtime.pkg
	(14.40), version.scm (14.46): Installation of new graphics
	operations.  This requires support available as of microcode
	version 10.85.	Documentation to follow shortly.

1989-06-22 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sgx.c (1.6): Change name of primitive to prevent
	conflict with new X11 stuff.

1989-06-22 17:50  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/: array.c (9.36), array.h (9.30), fft.c (9.26), image.c
	(9.28): New 6003 system under construction

1989-06-22 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.85): [no log message]

1989-06-21 07:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.55): `comtab-entry' was missing one place
	where it needed to special case buttons.

1989-06-21 07:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11graph.c (1.2), starbasx.c (1.2), starbase.c (1.2):
	Add \n\ to ends of documentation lines.

1989-06-21 06:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xcom.scm (1.1): Initial revision

1989-06-21 06:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: make.scm (3.10), xterm.scm (1.7): Redesign for changes to
	microcode X11 interface.  Add new commands (to control color, size,
	etc.) of X windows.  Add Markf's mouse-button enhancements.

1989-06-21 06:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.5): Add new file "xcom".  Add Markf's
	mouse-button enhancements.

1989-06-21 06:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.4): Add new file "xcom."

1989-06-21 06:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/window.scm (1.148): Rewrite
	`inferior-containing-coordinates' to be faster.  Make optional
	argument be required.  Eliminate mixing of single- and
	multiple-value returns, which doesn't work.

1989-06-21 06:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edtfrm.scm (1.77): Change calling conventions for
	mouse-button commands.	Limit the coordinates to the buffer-frame's
	area, although probably the code should be changed to ignore events
	that occur over the modelines.	Change the button-table
	initialization stuff so it isn't done at load time.  Eliminate a
	few things that weren't being used.

1989-06-21 06:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/decls.scm (1.5): Add new file "xcom".

1989-06-21 06:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comwin.scm (1.138): [no log message]

1989-06-21 06:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.54): Change comtabs to have a separate slot
	for mouse-button bindings.  These are treated differently because
	mouse-buttons aren't bound to commands but instead to procedures
	with a certain calling protocol.

1989-06-21 06:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: starbase.c (1.1), starbasx.c (1.1): Initial revision

1989-06-21 06:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.4.1.2): Extensive redesign: abstraction of
	portions of this code that is also needed to support X graphics
	windows.  Inclusion of Markf's mouse-handling code.

1989-06-21 06:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11.h (1.1), x11base.c (1.1), x11graph.c (1.1):
	Initial revision

1989-06-21 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comwin.scm (1.137): [no log message]

1989-06-20 12:20  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/comtab.scm (1.53): Command tables now associate on buttons
	as well as characters.

1989-06-20 12:16  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/comwin.scm (1.136): Added method
	:leaf-containing-coordinates  in support of mouse buttons.

1989-06-20 12:12  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/decls.scm (1.4.1.1): Added x-mouse.scm in support of X
	mouse buttons.

1989-06-20 12:09  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/edtfrm.scm (1.76): Support for mouse buttons. The support
	is not complete, but it does more or less work. See x-mouse.scm for
	soem examples.
	
	There is no support for chording (with multiple buttons, or with
	button and key combos), multiple clicking, or dragging.
	
	There is also no buffering of button events beyond the buffering
	done by X itself. I'm not sure how much of a problem this is.
	
	There is a small timing problem on edwin startup, where you can't
	use a mouse button until a key has been pressed. I think that the
	solution to this involves including mouse events (at least the
	button events) in the input port abstraction.

1989-06-19 19:02  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/edwin.ldr (1.3.1.1): I needed to move edtfrm around a
	little bit. It seems to work, but the whole thing is a little
	fragile.

1989-06-19 18:53  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/edwin.pkg (1.4.1.1): Added a VALUES-LET macro for binding
	multiple values.

1989-06-19 18:46  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/macros.scm (1.47): Added a VALUES-LET macro for binding
	multiple values.

1989-06-19 18:42  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/struct.scm (1.69): Fixed bug in MARK-PERMANENT!. 

1989-06-19 18:36  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/window.scm (1.147): Added a procedure to find an inferior
	containing a given x,y coordinate. Used in support of mouse button
	stuff.

1989-06-19 18:22  Mark Friedman <markf@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.6): Support for mouse buttons. The support is
	not complete, but it does more or less work. See x-mouse.scm for
	soem examples.
	
	There is no support for chording (with multiple buttons, or with
	button and key combos), multiple clicking, or dragging.
	
	There is also no buffering of button events beyond the buffering
	done by X itself. I'm not sure how much of a problem this is.
	
	There is a small timing problem on edwin startup, where you can't
	use a mouse button until a key has been pressed. I think that the
	solution to this involves including mouse events (at least the
	button events) in the input port abstraction.

1989-06-16 07:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intern.c (9.48): Change the string hashing algorithm
	one more time.	This one looks like more of a winner than the
	previous one.

1989-06-16 07:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intern.c (9.47): Change the string hashing algorithm
	one more time.	This one looks like more of a winner than the
	previous one.

1989-06-16 05:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.4.1.1): Delete definition of `UNSPECIFIC',
	which is now defined in "const.h".

1989-06-16 05:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.84): Significant changes to symbol
	interning code.  Various other related changes.

1989-06-16 05:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intern.c (9.46): Significant rewrite -- changed
	algorithm used for string hashing, altered interfaces of utility
	procedures.  Eliminated character-list primitives, which are no
	longer used.  Added new primitive, `find-symbol', which is like
	`symbol->string' except that it returns #F if the symbol was not
	already in the obarray.

1989-06-16 05:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fasload.c (9.41): Change reference to `Intern' to refer
	to `intern_symbol'.  The latter is a replacement for the former,
	with somewhat different interface.

1989-06-16 05:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/xdebug.c (9.25): Change code that previously referenced
	`Find_Symbol' to use the replacement procedure `find_symbol'. 
	Reformat primitives to use up to date argument and value macros.

1989-06-16 05:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/extern.h (9.31): Delete export of `Find_Symbol', which
	has been deleted.

1989-06-16 05:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/const.h (9.33): Add definition for `UNSPECIFIC'. 
	Delete definition of parameters for string-hashing algorithm.

1989-06-16 05:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.11): Fix bug in calling sequence of
	known lexprs: when callee needs a static link, the number of
	arguments pushed is one less than the frame size.  Previously this
	case was not being handled specially, and the resulting code worked
	only because the compiled code interface had a bug which caused the
	wrong number of arguments to be popped.

1989-06-13 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/udata.scm (14.9): Fix formatting of error message in
	`make-primitive-procedure'.

1989-06-13 04:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.4): Add most linking code and a few other
	procedures.

1989-06-12 13:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.56): Change the normal termination message.

1989-06-12 13:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.83): Fix comentry_lexpr_apply.  The
	number of arguments passed to it does not include the procedure,
	while invoke_lexpr expects it to be included.
	
	Bump the compiler's default constant space size.
	
	Change the normal termination message.

1989-06-12 12:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.44): Bump constant space size for the
	compiler.

1989-06-10 19:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.18): Fix trivial bug to
	recursive-compilation-results.	Entries in
	*recursive-compilation-results* are vectors, not lists!

1989-06-09 12:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: make.scm (4.8), sf.pkg (4.5), toplev.scm (4.4): Add new
	global variable, `sf/default-declarations', which defines extra
	declarations to be used in addition to those inside each file.

1989-06-09 12:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: gdatab.scm (14.4), global.scm (14.9), io.scm (14.2),
	runtime.pkg (14.39), savres.scm (14.9), version.scm (14.45): Add
	new event-receiver, `event:before-exit', which is invoked before
	Scheme is killed and before a disk-restore is performed.  This
	allows cleaning up of any state, such as open files, that relates
	the runtime system to the external world.

1989-06-07 20:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.82): Add new flags to the microcode:
	
	BAD_TYPES_INNOCUOUS If a bad type is seen, the system treats it as
	a non-pointer for most purposes.
	
	BAD_TYPES_LETHAL If a bad type is seen, kill Scheme with
	TERM_INVALID_TYPE_CODE.
	
	The default is BAD_TYPES_LETHAL when there is no compiler support,
	BAD_TYPES_INNOCUOUS when there is.

1989-06-07 20:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: gcloop.c (9.30), gc.h (9.27), interp.c (9.51),
	bchmmg.c (9.45), memmag.c (9.38), gccode.h (9.40), bchpur.c (9.44),
	fasdump.c (9.42), purify.c (9.39), purutl.c (9.36): Add new flags
	to the microcode:
	
	BAD_TYPES_INNOCUOUS If a bad type is seen, the system treats it as
	a non-pointer for most purposes.
	
	BAD_TYPES_LETHAL If a bad type is seen, kill Scheme with
	TERM_INVALID_TYPE_CODE.
	
	The default is BAD_TYPES_LETHAL when there is no compiler support,
	BAD_TYPES_INNOCUOUS when there is.

1989-06-07 20:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.44), bchgcl.c (9.35): Add new flags to
	the microcode:
	
	BAD_TYPES_INNOCUOUS If a bad type is seen, the system treats it as
	a non-pointer for most purposes.
	
	BAD_TYPES_LETHAL If a bad type is seen, kill Scheme with
	TERM_INVALID_TYPE_CODE.
	
	The default is BAD_TYPES_LETHAL when there is no compiler support,
	BAD_TYPES_INNOCUOUS when there is.

1989-06-07 16:47  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/fgopt/desenv.scm (4.2): Take into account the case where
	a variable is in a register (i.e. not on the stack). 
	Delete-integrated-parameters is now done in a separate phase.

1989-06-07 15:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.4): Fix stupid bugs introduced in
	`vector-map'.

1989-06-06 22:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm2.scm (4.9): Add primitive uuo link
	disassembly.

1989-06-06 22:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/dassm1.scm (4.11), vax/dassm1.scm
	(4.4): Supply missing argument to compiled-code-block/dbg-info from
	compiler:disassemble.

1989-06-06 21:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.81): Make SIGUSR2 renice scheme.

1989-06-06 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.38), version.scm (14.44): Add new
	operations `append-map', `append-map*', `append-map!',
	`append-map*!', and `1d-table/alist'.

1989-06-06 18:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.7): Add new operations `append-map',
	`append-map*'; these are respectively like `mapcan' and `mapcan*'
	but using `append' instead of `append!'.  Rename `mapcan' and
	`mapcan*' to `append-map!' and `append-map*!', respectively.  Keep
	old names for compatibility.

1989-06-06 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (14.3): Add new operation
	`for-each-vector-element'.

1989-06-06 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/prop1d.scm (14.3): Add new operation `1d-table/alist'.

1989-06-06 13:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.3): Wrote comutil_link.

1989-06-03 11:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.c (1.2): Finished comutil_apply.

1989-06-02 17:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (10.80), boot.c (9.55): Fix "infinite" GC
	bug when a bad type code is encountered in the gc.  Split a part of
	Microcode_Termination off into attempt_termination_backout.

1989-06-02 10:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/documentation/cmpint.txt (1.1), microcode/cmpgc.h (1.1),
	microcode/cmpint.c (1.1): Initial revision

1989-05-31 16:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.45), base/utils.scm
	(4.12), fgopt/order.scm (4.12), rtlgen/rgcomb.scm (4.10),
	rtlgen/rtlgen.scm (4.18): Remove the concept of safe primitives
	since the microcode now takes care of them.
	
	Add primitive uuo link unparsing to the disassembler.

1989-05-31 15:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.12.2.1): New branch until
	Arthur is done.  Add the primitive uuo link offsets to the
	disassembler.

1989-05-30 21:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.44), bchpur.c (9.43), const.h (9.32),
	dmpwrld.c (9.29), fasload.c (9.40), fhooks.c (9.30), futures.h
	(9.25), hooks.c (9.36), intercom.c (9.26), interp.c (9.50),
	lookup.h (9.42), memmag.c (9.37), prims.h (9.34), purify.c (9.38),
	step.c (9.26), utils.c (9.42), version.h (10.79): Make unsafe
	primitives back out of compiled code so that they don't have to be
	treated specially by the compiler or the compiled code interface. 
	This allows UUO linking of primitives, and applying primitives from
	compiled code without going to the interpreter.
	
	"Unsafe" primitives must use the new macro
	PRIMITIVE_CANONICALIZE_CONTEXT before they start manipulating the
	interpreter's state.
	
	This macro will allow them to proceed if they have been invoked
	from the interpreter, or will cause them to back into the
	interpreter and restart if they have been invoked from compiled
	code.

1989-05-30 21:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.40): Make Prim_Inexistent (last entry in
	the primitive table) have "lexpr" arity so that the apply code in
	the compiler interface can avoid checking whether a primitive is
	implemented in the common case.

1989-05-26 16:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.78): Fix many little bugs found when
	porting to the PMAX and at various other times.

1989-05-26 16:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/errors.h (9.33): 0x19 + 1 = 0x1a, not 0x20!

1989-05-26 12:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* cref/: triv.con (1.1), triv.ldr (1.1): Initial revision

1989-05-26 12:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/etc/comcmp.scm (1.1): Initial revision

1989-05-25 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntab.scm (14.3), runtime.pkg (14.37): Add operation
	to extract defined names from a syntax table.

1989-05-25 12:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.8), uenvir.scm (14.9): [no log message]

1989-05-24 14:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wsize.c (9.26): Make Wsize output the few remaining
	definitions required by config.h.

1989-05-24 14:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/object.h (9.30): Add a comment about consistency
	between object.h and Wsize.c.

1989-05-24 11:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utils.c (9.41): Fix bug in debugging version of
	Apply_Primitive.  The macro INTERNAL_APPLY_PRIMITIVE was being
	called with only one argument.

1989-05-24 01:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.43): Add PMAX (MIPS) definitions.

1989-05-24 01:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/debug.c (9.33): Add missing extern declaration.

1989-05-24 01:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/const.h (9.31): Fix edit bug.  MINIMUM_LENGTH must
	include the other fields!

1989-05-24 01:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm2.scm (4.8): Improve the heuristic
	disassembly so that the disassembler can win when there is no .binf
	file.

1989-05-24 01:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm1.scm (4.3): Fix bug in
	disassembler/write-compiled-code-block by which the dbg-info/labels
	were being extracted even if there was no info structure.

1989-05-22 13:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/compiler.cbf (1.2): Remove crsend which has
	moved to compiler/etc.

1989-05-21 14:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/compiler.pkg (1.4): Fix pathname for
	global-definitions.

1989-05-21 14:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/compiler.pkg (1.3): Fix pathname for
	global-definitions.

1989-05-21 13:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: decls.scm (4.4), make.scm (4.44): Upgrade
	to Liar 4.44 because of many bug fixes.

1989-05-21 13:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: make.scm (4.5), compiler.pkg (1.2):
	Upgrade to Liar 4.44 because of many bug fixes.

1989-05-21 13:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.12): Allow for the possibility of purifying
	the bcon file, although it is currently turned off for space
	reasons.

1989-05-21 13:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.7): Rewrite definition of
	system-global-environment/bound-names to use obarray->list.

1989-05-21 13:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.43): Increment version number after some
	bug fixes by various people.

1989-05-21 13:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/global.scm (14.8): Add a new global procedure,
	obarray->list so that symbols can be filtered, etc.

1989-05-21 13:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/packag.scm (14.7): Allow for the possibility of the bcon
	file being purified, although it  currently is not because of space
	reasons.

1989-05-21 10:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.44): Minor changes to
	reflect VAX needs.  
	
	Add base/crstop to compiler files.
	
	The compiler system name now includes the processor kind (Motorola
	MC68020), (DEC VAX), etc.

1989-05-21 10:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.21.1.1): New branch until
	arthur unlocks.

1989-05-21 10:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.22.1.1): New branch
	until arthur unlocks.

1989-05-21 00:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/debug.scm (14.12): Fix bug in terse-print-expression. 
	This procedure was checking for debugging-info on the wrong
	expression!

1989-05-20 23:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/reuse.scm (1.3): Fix bug in node/noop?. 
	variable-assigned? can't be used because it is set up by
	phase/design-environment-frames which runs AFTER
	phase/subproblem-ordering which is using this procedure.

1989-05-20 23:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/rules1.scm (4.6): Fix broken rule.  To set
	the type it was using BICL rather than BISL!

1989-05-20 23:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.7): Fix inverted conditional
	clauses in constant->ea.

1989-05-20 22:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/crstop.scm (1.3): Eliminate unreferenced variable
	warning caused by last edit.

1989-05-20 22:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/crstop.scm (1.2): Eliminate double fasdump in
	cross-compile-bin-file-end.

1989-05-19 08:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm2.scm (4.7): Fix external label
	disassembly.  The disassembler was only printing the first word
	correctly, and then it was printing the second as an instruction.

1989-05-17 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/: crstop.scm (1.1), crsend.scm (1.1): Initial
	revision

1989-05-17 16:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.11): Compiled code block NMV header
	is now inserted as an object so that the cross compiler can dump
	the resulting compiled code block.  Some reorganization of the
	final phase.

1989-05-17 16:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: rulfix.scm (1.1), compiler.cbf (1.1),
	compiler.pkg (1.1), compiler.sf (1.1): Initial revision

1989-05-17 16:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: rgspcm.scm (4.2), rules1.scm (4.5),
	rules2.scm (4.3), rules3.scm (4.7), rules4.scm (4.2): New VAX port,
	May 1989.

1989-05-17 16:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: assmd.scm (4.5), coerce.scm (1.4),
	dassm1.scm (4.2), dassm2.scm (4.6), dassm3.scm (1.3), decls.scm
	(4.3), dsyn.scm (1.6), inerly.scm (1.5), insmac.scm (1.12),
	instr1.scm (1.6), instr2.scm (1.5), instr3.scm (1.8), insutl.scm
	(4.2), lapgen.scm (4.6), machin.scm (4.5), make.scm (4.4): New VAX
	port, May 1989.

1989-05-16 14:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.11): Use new syntax-entry "p" bit to properly
	describe the Scheme prefix character actions.

1989-05-16 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.c (1.18): Add new syntax_entry bit, "p", which
	indicates that the character is a prefix character.  A combination
	of `syntaxcode_whitespace' and this bit is equivalent to
	`syntaxcode_quote' -- except that the new bit can be used in
	combination with other codes to provide new functionality.

1989-05-16 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syntax.c (1.16), syntax.c (1.17): Add new
	syntax_entry bit, "p", which indicates that the character is a
	prefix character.  A combination of `syntaxcode_whitespace' and
	this bit is equivalent to `syntaxcode_quote' -- except that the new
	bit can be used in combination with other codes to provide new
	functionality.

1989-05-16 12:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syntax.h (1.5), syntax.c (1.15), version.h (10.77):
	Add new syntax_entry bit, "p", which indicates that the character
	is a prefix character.	A combination of `syntaxcode_whitespace'
	and this bit is equivalent to `syntaxcode_quote' -- except that the
	new bit can be used in combination with other codes to provide new
	functionality.

1989-05-16 03:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.37): Add a hack for easy cross
	compilation to machines with a different endianness.

1989-05-15 18:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.36): Allow TC_COMPILED_CODE_BLOCK when
	the allow_cc option is given.

1989-05-12 06:03  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.8): Fixed slot option parsing to check for
	missing arguments.

1989-05-11 13:47  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.22.2.2), rtlopt/rcse1.scm
	(4.17.1.2): Open-coding of floating-point primitives.

1989-05-11 13:44  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/rtlbase/: rtlcon.scm (4.15.1.2), rtlexp.scm (4.10.1.2),
	rtlty1.scm (4.13.1.2): Open-coding of floating-point primitives.

1989-05-11 13:40  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/machin.scm (4.13.1.2),
	machines/bobcat/rules1.scm (4.18.1.2), machines/bobcat/rules2.scm
	(4.7.1.2), rtlbase/rgraph.scm (4.4.1.2): Open-coding of
	floating-point primitives.

1989-05-11 13:36  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm3.scm (4.6.1.2), decls.scm
	(4.18.1.2), lapgen.scm (4.18.1.2): Open-coding of floating-point
	primitives.

1989-05-11 13:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.12.1.2): Open-coding of
	floating-point primitives.

1989-05-11 13:26  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/back/: lapgn2.scm (1.9.1.2), regmap.scm (4.7.1.3):
	Open-coding of floating-point primitives.

1989-05-11 13:21  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.pkg (1.14.1.2), compiler.sf
	(1.6.1.2): Open-coding of floating-point primitives.

1989-05-10 17:57  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/flonum.c (9.26): Changed floating-point predicates to
	return booleans, not one and zero.

1989-05-10 04:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/stream.scm (14.3): Fix the definition of head and tail to
	check for a proper stream.

1989-05-09 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.8): Don't update the procedure's
	closing-block in this pass -- fix it in the next pass.	See the
	comment in the code for more details.

1989-05-08 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.43): [no log message]

1989-05-08 19:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.17): Use `sf/pathname-defaulting' to
	predict where `sf' will put its output file.

1989-05-08 19:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/sf.pkg (4.4): Make `sf/pathname-defaulting' available for
	users of `sf' to predict where the output files will go.

1989-05-08 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/ctypes.scm (4.12), base/contin.scm (4.8),
	base/proced.scm (4.13), fgopt/operan.scm (4.6): If the last
	application of a procedure is deleted, make sure that the procedure
	no longer satisfies `procedure-always-known-operator?'.

1989-05-04 15:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/error.scm (14.9): Remove fossil introduced while making
	previous change.

1989-05-04 15:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/error.scm (14.8): Fix bugs in condition/environment and
	condition/substitute-environment?

1989-05-04 12:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/make.scm (14.11): Fix order problem: intern was used
	before it was defined.

1989-05-04 11:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/primutl.c (9.50): Fix references to _toupper.

1989-05-02 22:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/syntax.c (1.14): Add a cast from enum_type to int so it
	can be used to index an array.

1989-05-02 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/findprim.c (9.39): Don't use _toupper() since it
	doesn't exist in non-HP OS.

1989-05-01 17:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/clscon.scm (1.3): Associate new operation
	`object-description' with object tags so that inspection tools
	understand how to examine class-system instances.

1989-05-01 17:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/class.scm (1.70): Add operation `object-description' which
	is to be used by inspection tools to examine class-system
	instances.

1989-05-01 15:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: regex.c (1.8), regex.h (1.3), syntax.c (1.13),
	syntax.h (1.4): Update copyright notice on regular-expression and
	syntax-table code to detail the relationship between this code and
	the original GNU Emacs code from which it was derived.	Warn users
	that they may be restricted by the GNU license in this case.

1989-04-28 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rgxcmp.scm (1.101), edwin/ring.scm (1.9),
	edwin/schmod.scm (1.10), edwin/screen.scm (1.81), edwin/search.scm
	(1.146), edwin/sercom.scm (1.54), edwin/simple.scm (1.29),
	edwin/strpad.scm (1.4), edwin/strtab.scm (1.41), edwin/struct.scm
	(1.68), edwin/syntax.scm (1.69), edwin/tagutl.scm (1.34),
	edwin/texcom.scm (1.32), edwin/things.scm (1.78), edwin/tparse.scm
	(1.65), edwin/tximod.scm (1.12), edwin/undo.scm (1.45),
	edwin/unix.scm (1.6), edwin/utils.scm (1.15), edwin/utlwin.scm
	(1.51), edwin/wincom.scm (1.93), edwin/window.scm (1.146),
	edwin/winout.scm (1.3), edwin/winren.scm (1.2), edwin/xform.scm
	(1.5), edwin/xterm.scm (1.5): Add GNU License warning to copyright
	headers.

1989-04-28 18:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.91), fill.scm (1.44), grpops.scm (1.6),
	hlpcom.scm (1.88), image.scm (1.123), info.scm (1.90), input.scm
	(1.79), intmod.scm (1.35), iserch.scm (1.6), keymap.scm (1.7),
	kilcom.scm (1.58), kmacro.scm (1.30), lincom.scm (1.103),
	linden.scm (1.118), loadef.scm (1.3), lspcom.scm (1.150),
	macros.scm (1.46), midas.scm (1.14), modefs.scm (1.117), modes.scm
	(1.23), modwin.scm (1.29), motcom.scm (1.39), motion.scm (1.80),
	nvector.scm (1.7), pasmod.scm (1.42), prompt.scm (1.134),
	reccom.scm (1.13), regcom.scm (1.18), regexp.scm (1.48), regops.scm
	(1.80), rename.scm (1.2), replaz.scm (1.65): Add GNU License
	warning to copyright headers.

1989-04-28 18:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: argred.scm (1.29), autold.scm (1.43), autosv.scm (1.21),
	basic.scm (1.98), bufcom.scm (1.82), buffer.scm (1.130), buffrm.scm
	(1.32), bufinp.scm (1.2), bufmnu.scm (1.110), bufout.scm (1.2),
	bufset.scm (1.7), bufwfs.scm (1.5), bufwin.scm (1.279), bufwiu.scm
	(1.9), bufwmc.scm (1.4), c-mode.scm (1.43), calias.scm (1.5),
	cinden.scm (1.3), class.scm (1.69), clscon.scm (1.2), clsmac.scm
	(1.2), comman.scm (1.58), comred.scm (1.74), comtab.scm (1.52),
	comwin.scm (1.135), curren.scm (1.83), debuge.scm (1.37), dired.scm
	(1.102), editor.scm (1.187), edtfrm.scm (1.75), edtstr.scm (1.4),
	evlcom.scm (1.14), filcom.scm (1.136): Add GNU License warning to
	copyright headers.

1989-04-27 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.9): [no log message]

1989-04-27 23:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: grpops.scm (1.5), utils.scm (1.14): Change group deletion
	operation to limit the gap length to a particular size, given by
	the new parameter `gap-maximum-extra'.	This change requires
	microcode 10.76 or later, as it uses the new primitive
	`set-string-maximum-length!' to avoid consing a new string.

1989-04-27 23:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/linden.scm (1.117): Fix "double body indent" feature of
	special forms so that it works in all cases.

1989-04-27 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/iserch.scm (1.5): Always clear the minibuffer message after
	an incremental search.

1989-04-27 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/regcom.scm (1.17): Fix typo in `insert-register' command.

1989-04-27 23:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.67): Change `mark-{right,left}-inserting' to
	be the same as `mark-permanent!' if the argument is (respectively)
	{right,left} inserting.

1989-04-27 23:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: string.c (9.32), version.h (10.76): Implement new
	primitive: `set-string-maximum-length!'.

1989-04-27 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.22): Fix bug in rules to
	push or cons fixnums, so that they use temporary hardware register
	in which to box the fixnum.  Previously they were just clobbering
	the source register.

1989-04-26 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: editor.scm (1.186), edwin.pkg (1.4): Add variable
	`edwin-reset-args' which is passed to `edwin-reset' on its first
	call.

1989-04-26 14:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.135), fileio.scm (1.90), tagutl.scm (1.33),
	make.scm (3.8): Change `find-file' and friends to check
	file-modification-time when a buffer already exists for that file,
	and offer to revert the buffer if the time is not consistent.

1989-04-26 01:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.pkg (1.22), make.scm-68040
	(4.42): Add new RTL optimization pass:
	`invertible-expression-elimination'.

1989-04-26 01:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/constr.scm (1.1), rtlopt/rinvex.scm (1.1):
	Initial revision

1989-04-26 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.16): Add new phase to find pairs of
	invertible RTL expressions and eliminate them.

1989-04-26 01:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.21): Add new file
	"rtlopt/rinvex".  Remove all integration dependencies
	"base/constr".

1989-04-25 18:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.101): Fix bug which occurred when moving to
	last line of Dired buffer.

1989-04-24 23:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.4): Improve performance problem introduced in
	last revision.

1989-04-24 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.4): Fix drastic performance loss caused by
	previous revision's bug fix.

1989-04-24 22:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: x11term.c (1.3), version.h (10.75): Change
	`xterm-read-chars': if called with non-false interval, and an event
	flag is set during that interval, return immediately.  If no
	characters have been received, return the amount of the interval
	which remains, so the primitive can be continued by reentering it
	with this number as its argument.

1989-04-24 22:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.7): Various changes.  This version requires
	microcode version 10.75 or later.

1989-04-24 22:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.34): Change name of `interaction' mode to be
	`scheme-interaction'.

1989-04-24 22:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edtstr.scm (1.3), modefs.scm (1.116): Generate variable
	to hold mode object of initial buffer.	Move this variable and
	`initial-buffer-name' to "modefs".

1989-04-24 22:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/simple.scm (1.28): Implement new procedures
	`guarantee-newline' and `guarantee-newlines', which are like
	`insert-newline' and `insert-newlines' respectively, except that
	they output one fewer newline if point is at the beginning of a
	line.

1989-04-24 22:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.5): `os/make-dired-line' now returns #F if it
	is unable to get the file's attributes.

1989-04-24 22:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.100): `os/make-dired-line' can now return #F
	if it is unable to get the file's attributes.  Do something
	reasonable when that happens.
	
	Rewrite the code that generates the buffer contents to improve
	performance.

1989-04-24 22:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/xterm.scm (1.3): Changes because `xterm-read-chars' can now
	return an integer, which means that there were no characters, some
	other kind of event was received, and the timeout hasn't yet
	finished.  When this occurs, process the events and finish waiting
	the appropriate amount of time.

1989-04-24 21:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/winout.scm (1.2): Call `keyboard-active?' in the
	`flush-output' operation, to allow the screen to process input
	events periodically.  This isn't the "right thing", but it will
	help.

1989-04-24 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.4): Fix stupid bug in `file-writable?'.

1989-04-24 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.42): [no log message]

1989-04-24 19:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.3): Don't call `pathname->input-truename'
	for primitives that are going to do file probes themselves.  Just
	canonicalize the filename and pass it in.

1989-04-23 19:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.6): [no log message]

1989-04-23 19:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.2): Fix error in definition of
	`unix/current-file-time'.

1989-04-23 19:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/struct.scm (1.66): Rewrite mark comparisons for increased
	speed.	Redesign permanent mark handling to permit reuse of
	previously recorded permanent marks.  Rewrite permanent mark list
	scanning to increase speed.

1989-04-23 19:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.13): Fix bug in `y-or-n?'.

1989-04-23 19:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/wincom.scm (1.92): Update some documentation strings.

1989-04-23 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: reccom.scm (1.12), things.scm (1.77): Change usage of
	`mark-permanent!'.

1989-04-23 19:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.133): In `repeat-complex-command', range
	check the argument correctly.

1989-04-23 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/iserch.scm (1.4): Handle #\return character correctly in
	incremental search.

1989-04-23 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/intmod.scm (1.33): Change interaction mode to be more like
	scheme-interaction mode in Emacs.

1989-04-23 19:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/grpops.scm (1.4): Change name `%set-mark-position!' to 
	`set-mark-position!'.

1989-04-23 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fill.scm (1.43): Change usage of `mark-permanent!'.

1989-04-23 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/curren.scm (1.82): Change definition of `guarantee-mark' to
	make it more like other `guarantee-FOO' procedures in the runtime
	system.

1989-04-23 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/comred.scm (1.73): Add argument to `dispatch-on-command' to
	force recording of command in command-history.

1989-04-23 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.8): Rewrite changes and clip daemons to
	reduce consing and runtime.

1989-04-23 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.278): Change `%window-y-center' to restrict
	its result to the proper range.

1989-04-23 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/basic.scm (1.97): Add argument to `dispatch-on-command' to
	force recording of command in command-history.	Also change use of
	`mark-permanent!'.

1989-04-23 19:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autosv.scm (1.20): Enable `delete-auto-save-files' by
	default.  Update names and documentation of variables.

1989-04-21 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.36): Export new procedures
	`weak-list->list' and `list->weak-list'.

1989-04-21 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.6): Return unspecific value for weak-pair
	side-effects.  Write new procedures `weak-list->list' and
	`list->weak-list'.

1989-04-21 14:54  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/fgopt/delint.scm (1.1): Support for passing arguments in
	registers.

1989-04-21 13:22  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.21): Support for passing
	arguments in registers.

1989-04-21 13:14  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.20): Support for passing
	arguments in registers.

1989-04-21 13:09  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/: fgopt/blktyp.scm (4.11), fgopt/reuse.scm (1.2),
	rtlgen/fndvar.scm (1.2), rtlgen/rgproc.scm (4.8), fggen/fggen.scm
	(4.16): Support for passing arguments in registers.

1989-04-21 13:04  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/: lvalue.scm (4.14), proced.scm (4.12), toplev.scm
	(4.15): Support for passing arguments in registers.

1989-04-21 12:58  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.10): Support for passing arguments in
	registers.

1989-04-21 12:32  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.11): Support for passing arguments to
	procedures in registers.

1989-04-21 12:23  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/fgopt/param.scm (1.1): Initial revision

1989-04-21 11:20  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.41): New version of
	compiler which includes support for passing arguments to procedures
	in registers.

1989-04-20 04:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.5): [no log message]

1989-04-20 04:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/decls.scm (1.4): Make sure that "make" is resyntaxed.

1989-04-20 04:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.4): Add new operations `os/file-directory?',
	`os/make-filename', and `os/filename-as-directory'.  These
	operations replicate the action of existing operations, but they
	allow the performance of filename completion to be improved
	significantly over what could previously be achieved.
	
	Add new operation `os/completion-ignored-extensions' which is used
	to initialize the variable of that name.
	
	Change `os/directory-list-completions' to special case the
	null-string prefix for added performance.

1989-04-20 04:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/schmod.scm (1.9): Add indentation methods for
	`there-exists?' and `for-all?'.

1989-04-20 04:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/prompt.scm (1.132): Don't sort the strings returned by the
	`list-completions' operation.  That operation is now responsible
	for determining the order.  This allows customization of the
	sorting.

1989-04-20 04:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.134): Implement
	`completion-ignored-extensions'.  When directories appear in a
	completion list, display them with trailing slashes.

1989-04-20 04:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwin.scm (1.277): Trivial rewriting of some code.

1989-04-20 04:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/iserch.scm (1.3): Treat ALL ascii control characters
	specially when deciding whether or not to exit incremental search. 
	"Wrapped" should not appear when the search direction is reversed.

1989-04-20 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.2): Fix bug: C range checks don't work the
	way I foolishly thought they did, but because C makes no
	distinction between booleans and integers, there was no error
	message to indicate that I was doing something wrong.

1989-04-19 21:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pathnm.scm (14.4): Don't simplify the directory "./" to
	the null string.

1989-04-18 22:30  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/version.h (10.74): Make floating-point spill area.

1989-04-18 22:26  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/version.h (10.70.1.2): Make floating-point spill area.

1989-04-18 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.sf (1.3): Improve script so that it will work from
	bare sources.

1989-04-18 12:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.73): Change `get-primitive-name' to
	return a string instead of a symbol.  This concentrates knowledge
	of symbols' internal case in the runtime system.

1989-04-18 12:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/object.scm (4.2): Eliminate use of `make-named-tag', which has
	been flushed from the runtime system.

1989-04-18 12:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.7), lambda.scm (14.5), make.scm (14.10),
	parse.scm (14.7), runtime.pkg (14.35), scan.scm (14.3), scode.scm
	(14.5), syntax.scm (14.8): Update runtime system to use lower case
	as the canonical case for interned symbols.

1989-04-18 01:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.29): It's OK to assume that the GC
	header of an object passed to `vector-length' contains a zero type
	code.

1989-04-18 00:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/udata.scm (14.8): Update copyright date.

1989-04-18 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/primutl.c (9.49): [no log message]

1989-04-18 00:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/udata.scm (14.7), microcode/primutl.c (9.48): Change
	`get-primitive-name' to return a string instead of a symbol.  This
	concentrates knowledge of symbols' internal case in the runtime
	system.

1989-04-17 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/macros.scm (1.45): Eliminate references to
	`string->symbol'.

1989-04-17 18:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/syntax.scm (1.68): Don't need special structure tag for
	`syntax-table' any more -- normal tag will do.

1989-04-17 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (4.11): Fix typo.

1989-04-17 13:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.20): Repackage the
	operator-analysis code.

1989-04-17 13:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/operan.scm (4.5): Now that continuations have
	their `continuation/combinations' field correctly initialized,
	there is no need to do it here.  Additionally, repackage this code.

1989-04-17 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/proced.scm (4.11): Make the
	`continuation/combinations' field of a procedure be initialized
	properly at creation.

1989-04-17 13:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (4.10): Fix typo in
	`combination/constant!'.  Also add some code to make the result
	more consistent.

1989-04-15 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/findprim.c (9.38): Eliminate case sensitivities in the
	primitive lookup mechanism.

1989-04-15 15:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: findprim.c (9.37), primutl.c (9.47), version.h
	(10.72): Eliminate case sensitivities in the primitive lookup
	mechanism.

1989-04-15 14:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn3.scm (4.3), rtlgen/rtlgen.scm (4.17),
	back/syntax.scm (1.23), base/debug.scm (4.9), base/lvalue.scm
	(4.13), fggen/canon.scm (1.4), base/utils.scm (4.11),
	base/pmlook.scm (1.7), base/scode.scm (4.6), rtlbase/rtlcfg.scm
	(4.7), machines/bobcat/make.scm-68040 (4.40): Rewrite all
	case-sensitive symbol operations to be case-insensitive.

1989-04-14 21:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uenvir.scm (14.6): Fix bug in lookup of integrated
	stack-allocated compiled-code variables.

1989-04-14 21:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.41): [no log message]

1989-04-14 21:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.34): Export new procedure
	`%make-combination' to the debugging-info package.

1989-04-14 21:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/framex.scm (14.8): Use new procedure `%make-combination'
	to construct the combinations being returned.  This is needed
	because one of those combinations might have failed because of a
	bad operand, and `make-combination' might try to constant fold the
	combination.  The new procedure doesn't try to perform any constant
	folding.

1989-04-14 21:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.3): Create procedure `%make-combination'
	that does not attempt to constant fold the combination before
	constructing it.

1989-04-14 21:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scode.scm (14.4): Change `symbol->string' so that it
	returns a lower-case string for normal interned symbols.

1989-04-14 21:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.71): Fix typo in `scan-sexps-forward'.

1989-04-14 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: info.scm (1.89), make.scm (3.4): Many changes for GNU
	Emacs compatibility:
	
	Change names of all commands, variables and modes; the new names
	are symbols.  All command names match those of Emacs; many variable
	names also match.
	
	Redesign command invocation code: new design uses `interactive'
	specification nearly identical to that of Emacs.  This permits
	implementation of [repeat-complex-command].  The redesign
	necessitated reworking some of the command prompting to make it fit
	the model.
	
	Completion has been redesigned to work just like Emacs.  The
	performance of filename completion has been significantly improved.
	
	Tags table stuff has been changed to be more like Emacs.
	
	The performance of incremental search has been improved. 
	Incremental regexp search is now implemented.
	
	The `recenter' command now clears the screen and redraws it if
	there is no argument.
	
	Scheme mode indentation is now like that in Emacs.
	
	Keyboard interrupts are disabled while reading most characters.
	
	[find-file] will call Dired if the argument is a directory.
	
	The "Reading file ..." message is suppressed.  Set the variable
	`read-file-message' to true if you want it as it used to be.
	
	The "override-message" (which is used to display messages and
	errors in the typein window) now moves the typein window's cursor
	to the end of the message.  This results in the cursor moving to
	the end of the message when an override-message overlays a typein
	in progress.
	
	The prompting for [query-replace] and associated commands has been
	changed to resemble Emacs'.

1989-04-14 20:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/replaz.scm (1.64), runtime/rgxcmp.scm (1.100),
	edwin/schmod.scm (1.8), edwin/screen.scm (1.80), edwin/sercom.scm
	(1.53), edwin/simple.scm (1.27), edwin/strtab.scm (1.40),
	edwin/syntax.scm (1.67), edwin/tagutl.scm (1.32), edwin/texcom.scm
	(1.31), edwin/things.scm (1.76), edwin/tparse.scm (1.64),
	edwin/tximod.scm (1.11), edwin/undo.scm (1.44), edwin/unix.scm
	(1.3), edwin/utils.scm (1.12), edwin/wincom.scm (1.91): Many
	changes for GNU Emacs compatibility:
	
	Change names of all commands, variables and modes; the new names
	are symbols.  All command names match those of Emacs; many variable
	names also match.
	
	Redesign command invocation code: new design uses `interactive'
	specification nearly identical to that of Emacs.  This permits
	implementation of [repeat-complex-command].  The redesign
	necessitated reworking some of the command prompting to make it fit
	the model.
	
	Completion has been redesigned to work just like Emacs.  The
	performance of filename completion has been significantly improved.
	
	Tags table stuff has been changed to be more like Emacs.
	
	The performance of incremental search has been improved. 
	Incremental regexp search is now implemented.
	
	The `recenter' command now clears the screen and redraws it if
	there is no argument.
	
	Scheme mode indentation is now like that in Emacs.
	
	Keyboard interrupts are disabled while reading most characters.
	
	[find-file] will call Dired if the argument is a directory.
	
	The "Reading file ..." message is suppressed.  Set the variable
	`read-file-message' to true if you want it as it used to be.
	
	The "override-message" (which is used to display messages and
	errors in the typein window) now moves the typein window's cursor
	to the end of the message.  This results in the cursor moving to
	the end of the message when an override-message overlays a typein
	in progress.
	
	The prompting for [query-replace] and associated commands has been
	changed to resemble Emacs'.

1989-04-14 20:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: fileio.scm (1.89), fill.scm (1.42), grpops.scm (1.3),
	hlpcom.scm (1.87), input.scm (1.78), intmod.scm (1.32), iserch.scm
	(1.2), keymap.scm (1.6), kilcom.scm (1.57), kmacro.scm (1.29),
	lincom.scm (1.102), linden.scm (1.116), loadef.scm (1.2),
	lspcom.scm (1.149), macros.scm (1.44), midas.scm (1.13), modefs.scm
	(1.115), modes.scm (1.22), modwin.scm (1.28), motcom.scm (1.38),
	pasmod.scm (1.41), prompt.scm (1.131), reccom.scm (1.11),
	regcom.scm (1.16), regexp.scm (1.47): Many changes for GNU Emacs
	compatibility:
	
	Change names of all commands, variables and modes; the new names
	are symbols.  All command names match those of Emacs; many variable
	names also match.
	
	Redesign command invocation code: new design uses `interactive'
	specification nearly identical to that of Emacs.  This permits
	implementation of [repeat-complex-command].  The redesign
	necessitated reworking some of the command prompting to make it fit
	the model.
	
	Completion has been redesigned to work just like Emacs.  The
	performance of filename completion has been significantly improved.
	
	Tags table stuff has been changed to be more like Emacs.
	
	The performance of incremental search has been improved. 
	Incremental regexp search is now implemented.
	
	The `recenter' command now clears the screen and redraws it if
	there is no argument.
	
	Scheme mode indentation is now like that in Emacs.
	
	Keyboard interrupts are disabled while reading most characters.
	
	[find-file] will call Dired if the argument is a directory.
	
	The "Reading file ..." message is suppressed.  Set the variable
	`read-file-message' to true if you want it as it used to be.
	
	The "override-message" (which is used to display messages and
	errors in the typein window) now moves the typein window's cursor
	to the end of the message.  This results in the cursor moving to
	the end of the message when an override-message overlays a typein
	in progress.
	
	The prompting for [query-replace] and associated commands has been
	changed to resemble Emacs'.

1989-04-14 20:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: argred.scm (1.28), autold.scm (1.42), autosv.scm (1.19),
	basic.scm (1.96), bufcom.scm (1.81), buffer.scm (1.129), buffrm.scm
	(1.31), bufmnu.scm (1.109), bufwin.scm (1.276), c-mode.scm (1.42),
	cinden.scm (1.2), class.scm (1.68), comman.scm (1.57), comred.scm
	(1.72), comtab.scm (1.51), curren.scm (1.81), debuge.scm (1.36),
	decls.scm (1.3), dired.scm (1.99), editor.scm (1.185), edtfrm.scm
	(1.74), edtstr.scm (1.2), edwin.ldr (1.3), edwin.pkg (1.3),
	edwin.sf (1.2), evlcom.scm (1.13), filcom.scm (1.133): Many changes
	for GNU Emacs compatibility:
	
	Change names of all commands, variables and modes; the new names
	are symbols.  All command names match those of Emacs; many variable
	names also match.
	
	Redesign command invocation code: new design uses `interactive'
	specification nearly identical to that of Emacs.  This permits
	implementation of [repeat-complex-command].  The redesign
	necessitated reworking some of the command prompting to make it fit
	the model.
	
	Completion has been redesigned to work just like Emacs.  The
	performance of filename completion has been significantly improved.
	
	Tags table stuff has been changed to be more like Emacs.
	
	The performance of incremental search has been improved. 
	Incremental regexp search is now implemented.
	
	The `recenter' command now clears the screen and redraws it if
	there is no argument.
	
	Scheme mode indentation is now like that in Emacs.
	
	Keyboard interrupts are disabled while reading most characters.
	
	[find-file] will call Dired if the argument is a directory.
	
	The "Reading file ..." message is suppressed.  Set the variable
	`read-file-message' to true if you want it as it used to be.
	
	The "override-message" (which is used to display messages and
	errors in the typein window) now moves the typein window's cursor
	to the end of the message.  This results in the cursor moving to
	the end of the message when an override-message overlays a typein
	in progress.
	
	The prompting for [query-replace] and associated commands has been
	changed to resemble Emacs'.

1989-04-14 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.c (1.12): Fix typo in `scan-sexps-forward'.

1989-04-06 18:15  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/version.h (10.70.1.1): New spill area for regular and
	floating-point registers in compiled code.

1989-04-06 17:49  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.12.1.1): Disassemble new
	compiler temporary references.

1989-04-05 14:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.3): [no log message]

1989-04-05 14:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/utils.scm (1.11): Modify `char-controlify' and
	`char-control-metafy' to use new procedure `ascii-controlified?'
	when determining whether or not to set the control bit in the
	result.

1989-04-05 14:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.31): Update to reflect changes in
	`find-file-noselect'.

1989-04-05 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/paths.scm (1.2): Update pathnames to reflect current
	installation.  Add new pathname for tutorial file.

1989-04-05 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/hlpcom.scm (1.86): Rewrite handling of tutorial so that the
	file pathnames are correct.

1989-04-05 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: filcom.scm (1.132), fileio.scm (1.88): Change
	`find-file', `read-buffer', and related procedures to separate out
	certain functionality in new procedure `after-find-file'.  This new
	procedure sets the read-only bit, puts up any special messages
	regarding the read/write status of the file, and does mode
	initialization.  In addition, `find-file' now catches file errors
	and recovers from them in a reasonably graceful way.

1989-04-05 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/calias.scm (1.4): Create procedure `ascii-controlified?'
	which is true of characters which are ASCII control characters (not
	counting things like RET, LFD, TAB, etc.).

1989-04-05 14:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/bufwiu.scm (1.7): In direct-update, must wrap the redrawing
	code with `with-screen-in-update!' so that the screen gets flushed
	correctly.

1989-04-05 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.41): Change `load-edwin-file' to default the
	directory of the input pathname to the library directory.

1989-04-05 01:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uerror.scm (14.8), runtime.pkg (14.33): Make
	file-system errors have a common generalization.

1989-04-05 00:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/framex.scm (14.7): Random typo in previous change.

1989-04-05 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.40): Organize handling of file system
	errors so that they share a common generalization type.

1989-04-05 00:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pathnm.scm (14.3): Use proper error-type to signal open
	file error.

1989-04-05 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxprm.scm (1.1): Initial revision

1989-04-05 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.5): Move unix primitives elsewhere.

1989-04-05 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/framex.scm (14.6): Can't use `po' in the runtime system
	-- it is strictly a part of the compiler.  Use `pp' instead.

1989-04-03 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/subfre.scm (1.2): When a procedure appears in the
	operator position, the free variables of all of its callees, as
	well as itself, must be collected.

1989-03-30 11:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* edwin/: buffrm.scm (1.30), bufwiu.scm (1.6), decls.scm (1.2),
	editor.scm (1.184), edwin.ldr (1.2), edwin.pkg (1.2), grpops.scm
	(1.2), intmod.scm (1.31), make.scm (3.2), screen.scm (1.79),
	wincom.scm (1.90), xterm.scm (1.2): 1) Add support for ordinary
	terminals by using the curses library.
	
	2) Eliminate some interrupt windows in direct output.
	
	3) Add operations to the screen data structure to accomodate
	curses.
	
	4) Add a new structure, a display, which consists of a keyboard and
	a screen.
	
	5) Conditions not trapped by edwin now revert to the user in a
	reasonable way, ie. the terminal should be in the same state that
	it was before edwin was entered.
	
	6) Reentering edwin after an unhandled condition updates the
	display.
	
	7) The interaction buffer prompt is now inserted in the "exit"
	thunk of the dynamic unwind, so that an abort will insert it as
	well.
	
	8) Fix wrong number of args bug in ^R Screen Video.

1989-03-28 23:34  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.35): array-cons-reals: use double precision
	as much as possible

1989-03-28 23:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.28): Fix a trivial bug in the open
	coding of SYSTEM-VECTOR-SIZE and VECTOR-LENGTH.  The header's type
	code field must be cleared before or'ing in the new type.

1989-03-28 21:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: conpar.scm (14.7), debug.scm (14.11), error.scm (14.7),
	framex.scm (14.5), gc.scm (14.2), runtime.pkg (14.32), version.scm
	(14.39): Add support for trap recovery: - New condition types for
	hardware traps have been added.  - The stack parser knows how to
	parse (heuristically) the trap recovery information.  - The
	debugger prints a description of the context of the trap.  -
	hardware-trap-frame/print-registers and
	hardware-trap-frame/print-stack can be used on stack-frames of type
	hardware-trap to display more information.  - The debugger's Y
	command (new) prints the stack frame structure corresponding to the
	current subproblem.

1989-03-28 15:41  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/base/cfg3.scm (4.3): Deleted second copy of copyright
	message.

1989-03-28 15:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.49): Registers[REGBLOCK_PRIMITIVE] is now
	cleared when a primitive aborts with a non-error/interrupt code.

1989-03-27 18:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: utabmd.scm (9.47), utils.c (9.40), version.h (10.70):
	Trap recovery has been changed.  The microcode attempts to
	determine how much state is valid and then saves all the pertinent
	information (pc, registers, etc) so that the context of the trap
	and the rest of the stack can be examined from scheme.
	
	Primitives for reading/setting/enabling the keyboard interrupt
	characters have been added.  There is now a single C keyboard
	interrupt handler which dispatches according to the signal received
	and what the current handler is supposed to do.
	
	Scheme tty input has been rewritten for the NTH time. 
	reader_context and reader_state structures have been merged.

1989-03-27 18:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.43), bchpur.c (9.42), bkpt.h (9.26),
	boot.c (9.54), config.h (9.42), const.h (9.30), default.h (9.31),
	errors.h (9.32), fasload.c (9.39), fixobj.h (9.27), hooks.c (9.35),
	interp.c (9.48), interp.h (9.31), intrpt.h (1.5), memmag.c (9.36),
	purify.c (9.37), purutl.c (9.35), returns.h (9.35), sysprim.c
	(9.32): Trap recovery has been changed.  The microcode attempts to
	determine how much state is valid and then saves all the pertinent
	information (pc, registers, etc) so that the context of the trap
	and the rest of the stack can be examined from scheme.
	
	Primitives for reading/setting/enabling the keyboard interrupt
	characters have been added.  There is now a single C keyboard
	interrupt handler which dispatches according to the signal received
	and what the current handler is supposed to do.
	
	Scheme tty input has been rewritten for the NTH time. 
	reader_context and reader_state structures have been merged.

1989-03-23 15:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/utabs.scm (14.2): Add optional filename argument to
	read-microcode-tables! to specify a users own filename from scheme.

1989-03-21 13:54  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules2.scm (4.7.1.1): New branch for
	inlining floating-point arithmetic.

1989-03-21 13:27  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.17.1.1): New branch for inlining
	floating-point arithmetic.

1989-03-20 15:53  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm3.scm (4.6.1.1): Add floating-point
	instruction disassembly.

1989-03-15 14:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/make.scm (3.1): [no log message]

1989-03-15 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/unix.scm (1.2): Changes to make Dired work better.

1989-03-15 14:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/tagutl.scm (1.30): Changes to make this work with Emacs'
	tags tables.

1989-03-15 14:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/fileio.scm (1.87): Change `read-buffer' to correctly update
	the read-only flag.  Also fix some bugs which might have occurred
	if the truename was #F.

1989-03-15 14:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/filcom.scm (1.131): Change `current-default-pathname' and
	`pathname->buffer-name' to support dired better.  Add new operation
	`prompt-for-directory' to help out as well.

1989-03-15 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/evlcom.scm (1.12): When evaluation errors occur, pop up
	buffer with error message in it.

1989-03-15 14:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/edwin.cbf (1.2): [no log message]

1989-03-15 14:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/dired.scm (1.98): A number of changes to accomodate the
	unix environment.

1989-03-15 14:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/buffer.scm (1.128): Remove `writeable?' flag; define
	writability in terms of `group-read-only?'.

1989-03-15 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.40): Don't echo fasloads to REPL when loading
	libraries.

1989-03-14 23:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.39): [no log message]

1989-03-14 14:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.19): Changes to
	repackage the environment optimizer.

1989-03-14 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.7): `undrift-procedure!' must set
	the block-parent of the procedure's block to match the new
	closing-limit.	Also: change the handling of the closing-limit to
	guarantee that it is always either the same as the closing-block,
	or #F; reorganize the code a bit.

1989-03-14 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/envopt.scm (1.5): Rule which prevents lifting
	procedures of some "LET-like" procedures is too general.  Should
	not prevent trivial closures from being lifted as far as they can.

1989-03-14 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/sideff.scm (1.5): Can't pass a context to
	`make-return', because it expects a block.  This is because this
	procedure is usually called from fggen, and the contexts are
	constructed later.  Change this code to pass the block and then
	clobber it.

1989-03-14 14:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.12): The `block/procedure' of a
	block is not always a procedure (it might be an expression). 
	Sometimes must check it to make sure.

1989-03-14 04:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.31): Export `condition/message' for use
	in error-reporting handlers.

1989-03-14 03:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.c (1.11): Fix another trivial bug.

1989-03-14 03:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: edwin.ldr (1.1), edwin.pkg (1.1), edwin.sf (1.1),
	edwin.cbf (1.1): Initial revision

1989-03-14 03:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: bufinp.scm (1.1), bufout.scm (1.1), loadef.scm (1.1),
	make.scm (1.1), paths.scm (1.1), rename.scm (1.1), unix.scm (1.1),
	winout.scm (1.1), xterm.scm (1.1): Initial revision

1989-03-14 03:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/winren.scm (1.1): Initial revision

1989-03-14 03:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/modefs.scm (1.114), edwin/modes.scm (1.21),
	edwin/modwin.scm (1.27), edwin/motcom.scm (1.37), edwin/motion.scm
	(1.79), edwin/nvector.scm (1.6), edwin/pasmod.scm (1.40),
	edwin/prompt.scm (1.130), edwin/reccom.scm (1.10), edwin/regcom.scm
	(1.15), edwin/regexp.scm (1.46), edwin/regops.scm (1.79),
	edwin/replaz.scm (1.63), runtime/rgxcmp.scm (1.99), edwin/ring.scm
	(1.8), edwin/schmod.scm (1.7), edwin/screen.scm (1.78),
	edwin/search.scm (1.145), edwin/sercom.scm (1.52), edwin/simple.scm
	(1.26), edwin/strpad.scm (1.3), edwin/strtab.scm (1.39),
	edwin/struct.scm (1.65), edwin/syntax.scm (1.66), edwin/tagutl.scm
	(1.29), edwin/texcom.scm (1.30), edwin/things.scm (1.75),
	edwin/tparse.scm (1.63), edwin/tximod.scm (1.10), edwin/undo.scm
	(1.43), edwin/utils.scm (1.10), edwin/utlwin.scm (1.50),
	edwin/wincom.scm (1.89), edwin/window.scm (1.145), edwin/xform.scm
	(1.4): Initial working version for C-Scheme.

1989-03-14 02:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: cinden.scm (1.1), clscon.scm (1.1), clsmac.scm (1.1),
	decls.scm (1.1), edtstr.scm (1.1), grpops.scm (1.1), iserch.scm
	(1.1): Initial revision

1989-03-14 02:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/: argred.scm (1.27), autold.scm (1.39), autosv.scm (1.18),
	basic.scm (1.95), bufcom.scm (1.80), buffer.scm (1.127), buffrm.scm
	(1.29), bufmnu.scm (1.108), bufset.scm (1.6), bufwfs.scm (1.4),
	bufwin.scm (1.275), bufwiu.scm (1.5), bufwmc.scm (1.3), c-mode.scm
	(1.41), calias.scm (1.3), class.scm (1.67), comman.scm (1.56),
	comred.scm (1.71), comtab.scm (1.50), comwin.scm (1.134),
	curren.scm (1.80), debuge.scm (1.35), dired.scm (1.97), editor.scm
	(1.183), edtfrm.scm (1.73), evlcom.scm (1.11), filcom.scm (1.130),
	fileio.scm (1.86), fill.scm (1.41), hlpcom.scm (1.85), image.scm
	(1.122), info.scm (1.88), input.scm (1.77), intmod.scm (1.30),
	keymap.scm (1.5), kilcom.scm (1.56), kmacro.scm (1.28), lincom.scm
	(1.101), linden.scm (1.115), lspcom.scm (1.148), macros.scm (1.43),
	midas.scm (1.12): Initial working version for C-Scheme.

1989-03-13 21:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.4): Don't use vector-ref on result of
	file-attributes.

1989-03-13 21:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.38): [no log message]

1989-03-13 21:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (14.3): Change `delete-file' to return #F if
	the file does not exist, instead of signalling an error.

1989-03-13 21:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.3): Add new operations to support Edwin:  
	  file-modes	 set-file-modes!     unix/file-access	 
	file-writable?	   unix/current-uid	unix/current-gid

1989-03-13 21:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.8): Change `identify-world' to accept an
	output port as its optional argument, rather than a cmdl.

1989-03-13 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.69): Various changes to support Edwin.

1989-03-13 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.34): Implement new primitives to support
	Edwin:	   file-modes	  set-file-modes!     file-access    
	current-uid	current-gid

1989-03-13 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/x11term.c (1.1): Initial revision

1989-03-13 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.c (1.10): Fix some random typos.

1989-03-10 03:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.21): Add rule for 
	
	(ASSIGN (BYTE-OFFSET (REGISTER (? address)) (? offset))        
	(REGISTER (? source)))

1989-03-06 20:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.37): [no log message]

1989-03-06 20:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/uerror.scm (14.7): Add handlers for other errors that can
	be signalled by `environment-link-name'.

1989-03-06 20:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.5): Add `weak-memq'.  Make compound car/cdr
	operations type-safe.

1989-03-06 15:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.30): Export new operations to global
	environment.

1989-03-06 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.9): Add new operations
	`with-cmdl/{in,out}put-port'.

1989-03-06 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/wind.scm (14.3): Add new operation
	`object-component-binder'.

1989-03-06 14:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/output.scm (14.5): Add new operation
	`set-current-output-port!'.

1989-03-06 14:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (14.4): Add new operation
	`set-current-input-port!'.

1989-03-01 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* edwin/autold.scm (1.38), edwin/basic.scm (1.94), edwin/buffrm.scm
	(1.28), edwin/bufwfs.scm (1.3), edwin/bufwin.scm (1.274),
	edwin/bufwiu.scm (1.4), edwin/bufwmc.scm (1.2), edwin/calias.scm
	(1.2), edwin/class.scm (1.66), edwin/comman.scm (1.55),
	edwin/comred.scm (1.70), edwin/comwin.scm (1.133), edwin/curren.scm
	(1.79), edwin/editor.scm (1.182), edwin/edtfrm.scm (1.72),
	edwin/filcom.scm (1.129), edwin/info.scm (1.87), edwin/input.scm
	(1.76), edwin/intmod.scm (1.29), edwin/linden.scm (1.114),
	edwin/modwin.scm (1.26), edwin/motion.scm (1.78), edwin/regexp.scm
	(1.45), edwin/regops.scm (1.78), runtime/rgxcmp.scm (1.98),
	edwin/search.scm (1.144), edwin/simple.scm (1.25), edwin/struct.scm
	(1.64), edwin/syntax.scm (1.65), edwin/undo.scm (1.42),
	edwin/utlwin.scm (1.49), edwin/window.scm (1.144): [no log message]

1989-02-28 19:16  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* microcode/sgx.c (1.5): Add \n\ to end of each line in primitive
	procedure documentation strings.

1989-02-28 13:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.2): [no log message]

1989-02-28 13:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.29): Add "record" package from JAR.

1989-02-28 13:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/record.scm (1.1): Initial revision

1989-02-28 13:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.6): Allow stored description of named
	structure to be either a defstruct structure description, or a
	procedure.  In the latter case the procedure is just called to
	produce the description.

1989-02-28 12:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.36): [no log message]

1989-02-28 12:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/datime.scm (14.2): Fencepost error in
	`zellers-congruence' caused day of week to be incorrect in
	February.

1989-02-28 11:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.6): `proceed' from an error, with an
	argument, wasn't skipping the first subproblem frame.

1989-02-24 04:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.35): [no log message]

1989-02-24 04:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.28): Add support for X11 graphics on HP
	machines.

1989-02-24 04:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sgx11.c (1.1): Initial revision

1989-02-22 02:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.6): Don't treat data lists like combinations.

1989-02-19 15:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.36): Fix a problem whereby invalid C was
	generated when there were no primitives.

1989-02-19 13:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fft.c (9.25): Fix problem with duplicate definition of
	PI.

1989-02-19 12:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: sgraph_a.c (1.6), array.c (9.34), array.h (9.29),
	config.h (9.41), fixnum.c (9.27), mul.c (9.26), version.h (10.68):
	Some changes to unix.c to remove most conditionalization by machine
	and OS type.  Most of the code is now conditionalized according to
	flags like HAS_<mumble> or macros defined by the included files.
	
	mul.c is now included by fixnum.c, and all the assembly language
	versions have been moved to mul.c.

1989-02-17 10:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/mul.c (9.25): Fix a declaration in Mul.

1989-02-15 14:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.40): Fix some documentation on flags, and
	add sun4 info.

1989-02-15 13:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wsize.c (9.25): Improve mantissa bit computation so
	that it takes round-off into account.

1989-02-14 22:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wsize.c (9.24): Some enhancements for floating
	alignment and error checking.

1989-02-14 15:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ppband.c (9.33): Fix uninitialized variable bug.

1989-02-10 18:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/contin.scm (14.3): Fix within-continuation and rewrite
	invocation-method/reentrant to perform the state space motion after
	the control throw.

1989-02-10 18:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/version.scm (14.34): Add #@ to read back hashed objects. 
	Fix within-continuation and rewrite invocation-method/reentrant to
	perform the state space motion after the control throw.

1989-02-10 17:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/parse.scm (14.6): Add #@ to read back hashed objects.

1989-02-08 23:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.27): Pretty-printer needs definition of
	`unparse-list/prefix-pair?' from unparser.

1989-02-08 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.33): [no log message]

1989-02-08 22:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (14.12), pp.scm (14.5): Unparser now treats
	QUASIQUOTE, UNQUOTE, and UNQUOTE-SPLICING specially.

1989-02-08 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.5): `define-structure' macro should return
	the name of the structure which was defined.

1989-01-30 08:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: debug.c (9.32), comutl.c (1.18): Eliminate C compiler
	warning.

1989-01-21 04:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.17): Eliminate unreferenced variable
	warning.

1989-01-21 04:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.38): [no log message]

1989-01-21 04:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.18): Define
	`combination/inline/simple?'.

1989-01-21 04:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.20): Add several new rules
	which are needed because of changes to the expression simplifier in
	the RTL generator.  Rewrite the rules for handling string
	manipulation: the previous rules weren't complete or accurate.

1989-01-21 04:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.16): Change the
	expression-simplification to generate temporaries for more kinds of
	expressions.  This provides more intermediate values for the CSE to
	work on, allowing it to do a better job, but assumes that the code
	compressor will eliminate them later.

1989-01-21 04:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.16): Implement more aggressive
	compression of the RTL, because the intermediate swell caused by
	having one RTL instruction per bblock object finally exceeded the
	available memory for a reasonable file.  The current solution,
	which compresses the instructions associated with each FG node as
	they are generated, saves a considerable amount of space.

1989-01-21 04:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.27): Open coding of primitives:
	flesh out the type and range checking, which was previously a
	little spotty (e.g. general-car-cdr had no type checking).  Improve
	handling of `string-ref' and `string-set!' so that they inline code
	in the computed index case.  Flush inline coding of `char->ascii',
	which was incorrect anyway since it didn't check to see if the
	character was in the ASCII range.

1989-01-21 04:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simple.scm (4.4): Change simplicity analysis:
	previously all inline coded combinations were treated as simple,
	now there are some (e.g. generic arithmetic) which are not.  There
	is still a problem relating to type checking which could cause
	problems: if a type or range check fails in an otherwise simple
	inlined combination, the exception handling is not simple.  This
	should be fixed without making the entire combination non-simple.

1989-01-21 04:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (4.16), rcse2.scm (4.11), rcsesr.scm
	(4.2): Change CSE to record expressions as their values are pushed
	on the stack; previously these expressions weren't recorded until
	their first reference.	Fix `insert-stack-destination!' which was
	not setting up the quantity associated with a stack slot correctly.
	 Fix stack model which was not invalidating things correctly when
	pops occurred.	Change method for `invocation:special-primitive' to
	forget the contents of all pseudo registers.

1989-01-18 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.19): Remove all
	dependencies on "rtlbase/rtlcon".

1989-01-18 08:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.19): Fix stupid typo in
	`increment-machine-register'.

1989-01-18 04:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.14): Add definitions of
	`address-units-per-object' and `address-units-per-packed-char',
	which are more convenient numbers to manipulate when doing index
	arithmetic.

1989-01-17 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.19): Fix bug in rule for
	this expression:
	
	(ASSIGN (OFFSET (REGISTER (? a)) (? n)) (FIXNUM->OBJECT (REGISTER
	(? source))))
	
	There was a non-obvious order of argument evaluation problem here.

1989-01-06 20:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.26): Bug in interaction of
	continuation-entry setup code and invocation of primitive for which
	the continuation-entry was created: the push of extra items (e.g.
	dynamic link) was happening before the arguments to the primitive
	were stashed in registers.  The result was that arguments that
	depended on the stack pointer were gobbling up the wrong stuff.

1989-01-06 19:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.6): Fix several bugs in the
	stack-frame->continuation unparser.  It now seems to work on
	compiled code as well.

1989-01-06 18:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.10): Fix bug in Z command.  Change G
	command so that it doesn't needlessly load debugging information
	for frames that aren't displayed.

1989-01-06 17:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.9): Extend V and Z commands to allow lookup
	of symbols in compiled code environments.

1989-01-06 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgcmd.scm (14.4): Redefine `debug/eval' so that it will
	lookup symbols in compiled code environments.  Remove call to
	`hook/repl-environment' which seems unnecessary.

1989-01-06 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgutl.scm (14.7), debug.scm (14.8), framex.scm (14.4),
	infstr.scm (1.2), infutl.scm (1.7), runtime.pkg (14.26), uenvir.scm
	(14.5), unpars.scm (14.11), version.scm (14.32): Change handling of
	debugging information to match changes in compiler version 4.37. 
	Add facilities for accessing source code from debugging info.  Add
	where commands `p' and `s' to debugger, moving the old commands
	bound to those keys.  Change debugger display formats a bit.

1989-01-06 15:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/compiler.pkg (1.17), base/infnew.scm
	(4.4), base/subprb.scm (4.6), fggen/fggen.scm (4.15),
	machines/bobcat/make.scm-68040 (4.37): Change debugging output
	again; add slot to continuations and procedures to hold pointer to
	original source code (SCode).  Change FG generator to save this
	information so it can be included in the debugging output.
	
	Change variable names in debugging information to record other
	facts: Is the variable a cell?	Is it integrated, and if so, what
	is its value?

1989-01-05 14:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.17), version.h (10.67):
	`stack-address-offset' primitive had sign bug.

1988-12-31 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/stackp.scm (1.5): Adjust for changes in continuation
	parser code.

1988-12-31 01:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.9): Fix site loading mechanism; previous try
	didn't work.

1988-12-31 01:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/dbgutl.scm (14.6): Adjust frame display to look better on
	regular console.

1988-12-31 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.8): Add mechanism to allow normalization of
	directory prefixes.  Add "site" file mechanism to cold load to
	allow this to be performed in a site-specific manner.

1988-12-31 00:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/site.scm.unix (1.1): Initial revision

1988-12-31 00:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: infutl.scm (1.6), make.scm (14.7): Add mechanism to
	allow normalization of directory prefixes.  Add "site" file
	mechanism to cold load to allow this to be performed in a
	site-specific manner.

1988-12-30 18:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.25): Fix some bugs related to compiled
	code debugging when no debugging info is available.  Change cold
	load to cause updating of debugging information for the runtime
	system.  Fix demand loading so that, when disabled, procedure names
	are shown when the debugging information is already loaded. 
	Discard debugging info before doing disk-save.

1988-12-30 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: dbgutl.scm (14.5), debug.scm (14.7), infutl.scm (1.5),
	make.scm (14.6), runtime.pkg (14.24), savres.scm (14.7): Fix some
	bugs related to compiled code debugging when no debugging info is
	available.  Change cold load to cause updating of debugging
	information for the runtime system.  Fix demand loading so that,
	when disabled, procedure names are shown when the debugging
	information is already loaded.	Discard debugging info before doing
	disk-save.

1988-12-30 02:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.25), rtlgen/rgproc.scm (4.7),
	rtlgen/rgrval.scm (4.13), rtlgen/rgstmt.scm (4.10),
	rtlgen/rtlgen.scm (4.15), fgopt/blktyp.scm (4.10): Flesh out
	debugging information.	This goes along with changes introduced in
	runtime system version 14.31.

1988-12-30 02:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm1.scm (4.10), dassm2.scm (4.12),
	rules3.scm (4.15), rules4.scm (4.5): Flesh out debugging
	information.  This goes along with changes introduced in runtime
	system version 14.31.

1988-12-30 02:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/compiler.pkg (1.16), base/infnew.scm
	(4.3), base/toplev.scm (4.14), machines/bobcat/make.scm-68040
	(4.36): Flesh out debugging information.  This goes along with
	changes introduced in runtime system version 14.31.

1988-12-30 01:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infstr.scm (1.1): Initial revision

1988-12-30 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.3), conpar.scm (14.5), cpoint.scm
	(14.3), dbgutl.scm (14.4), debug.scm (14.6), framex.scm (14.3),
	infutl.scm (1.4), lambda.scm (14.4), load.scm (14.5), packag.scm
	(14.6), runtime.pkg (14.23), stream.scm (14.2), udata.scm (14.6),
	uenvir.scm (14.4), uerror.scm (14.6), unpars.scm (14.10),
	vector.scm (14.2), version.scm (14.31), where.scm (14.5): Extensive
	changes to utilize compiled code debugging information:
	
	* The stack parser now knows how to parse individual compiled code
	subproblem frames.
	
	* The compiler-info package has been updated to match the new
	compiled code info format.
	
	* The environment abstraction has been generalized to handle
	compiled code stack and closure frames, when debugging info is
	available to describe them.
	
	* The `debug' and `where' presentation formats have been adjusted
	somewhat to allow compiled code information to be presented
	reasonably.
	
	* `debug' has been extended to provide the common `A' command from
	`where'; there should be little need to invoke `where' from
	`debug'.

1988-12-29 02:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.66): Change definition of
	`compiled-entry-kind' for return addresses.  Now, the second
	element is a subtype: 0 means that the offset to the next return
	address is fixed and known; 1 means that the next element on the
	stack is a dynamic link, which points at the next return address;
	and 2 means that this is the "return-to-interpreter" return
	address.  The third element is either a non-negative offset (for
	subtypes 0 and 2) or -1 (for subtype 1).

1988-12-27 19:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.39): Adjust floating point formats for
	pyramid.

1988-12-23 16:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: forpkg.scm (1.3), make.scm (1.4): Don't bother putting out
	cref information for global and primitive references.  For a
	program like the compiler, these comprise about half the total
	cref, and are of little use.

1988-12-23 01:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlobj.scm (4.5): Add `next-continuation-offset'
	slot, which is either the stack offset to the next continuation, or
	false indicating that a dynamic link is in use.

1988-12-22 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/comutl.c (1.16): Fix definition of `stack-top-address'
	to make it consistent with definition of `object-datum' (which will
	be used to extract the address value of a stack address). 
	Implement new primitive `stack-address-offset' which computes the
	offset (in objects) between the stack-address argument and the top
	of stack.

1988-12-22 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.15), version.h (10.65): Fix definition of
	`stack-top-address' to make it consistent with definition of
	`object-datum' (which will be used to extract the address value of
	a stack address).  Implement new primitive `stack-address-offset'
	which computes the offset (in objects) between the stack-address
	argument and the top of stack.

1988-12-20 18:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/ctypes.scm (4.9), fgopt/sideff.scm (1.4): If
	combination has a `continuation-push', prevent that continuation
	from being pushed when the combination is constant folded in any
	way.

1988-12-20 11:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/subst.scm (3.8.1.1): Do not perform automagic integrations by
	default.  This optimization caused a bug in the runtime system
	version 13.108 where event distributors ignored the internal
	`receivers' binding and used the empty list instead.

1988-12-19 17:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (10.2.1.3), version.h (10.32.1.1): Change
	from using `stty/gtty' to ioctls.  Eliminate operating system
	dependence on C-g synchronization.

1988-12-19 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.35): [no log message]

1988-12-19 15:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.14): Rewrite the handling of SCode
	quotation expressions to allow `car' to be constant folded by the
	compiler.

1988-12-19 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.13): Rewrite the handling of SCode
	quotation expressions to allow `car' to be constant folded by the
	compiler.

1988-12-19 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.8): Tweak popping-limits computation
	once again: the external block is not necessarily one of the
	limits, and assuming that it is forces the use of dynamic links in
	many common situations.

1988-12-19 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.15): Repackage constant
	folding code.

1988-12-19 15:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/folcon.scm (4.7): Do not require
	`object-immutable?' of arguments to constant folding operations. 
	Because of the rule which says that constants appearing in program
	text must be immutable, we can freely constant fold anything that
	we can get our hands on, provided that we never constant fold
	anything to does a cons-like operation.

1988-12-19 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.10): Add references such as `car' and
	`vector-length' to set of constant foldable "functions".

1988-12-16 11:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/blktyp.scm (4.9): Delete reference to
	`block-frame', which has been made obsolete.

1988-12-16 08:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/blocks.scm (4.9), base/proced.scm (4.10),
	rtlbase/rtlobj.scm (4.4), base/rvalue.scm (4.5), base/contin.scm
	(4.7), rtlgen/rtlgen.scm (4.14): Add hooks for debugging info.

1988-12-16 08:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/object.scm (4.6): No longer need to use
	`set-type-object-description!'.

1988-12-16 08:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcseht.scm (4.7), rcserq.scm (4.4): No longer
	need to use `set-type-object-description!'.

1988-12-16 08:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/subprb.scm (4.5): No longer need to use
	`set-type-object-description!'.

1988-12-15 17:52  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.14.1.1): Changes for
	open-coding of floating-point arithmetic.

1988-12-15 12:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.34): [no log message]

1988-12-15 12:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rlife.scm (1.60): Fix bug in `instruction-dead?':
	an assignment whose RHS contains side effects cannot be considered
	dead.

1988-12-15 12:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.13): Introduce new algorithm to
	delete unreachable nodes from the RTL graph.

1988-12-15 12:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/folcon.scm (4.6): Change (commented-out) code that
	used to use lvalue marking mechanism to now use new mechanism.

1988-12-15 12:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.7): Improve popping limits
	computation -- new algorithm should eliminate dynamic links in many
	situations.

1988-12-15 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: lvalue.scm (4.12), macros.scm (4.9): Add
	generation and alist slots to lvalue objects, similar in form and
	purpose to those used in CFG nodes.  Remove the now-obsolete marks
	slot.

1988-12-15 12:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/proced.scm (4.9): Change procedure unparser to show
	the label in a more palatable way.

1988-12-15 12:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.8): Change block unparser to show the
	type, and to show the associated procedure's label in a more
	palatable way.

1988-12-15 12:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/mermap.scm (1.3): In the merged register map, if
	there are multiple aliases of the same type for a given register,
	eliminate all but one of the aliases.

1988-12-15 12:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.14): Repackage
	lifetime-analysis and register-allocation code.

1988-12-15 12:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.7): Eliminate fluid let
	to patch SF since the latter has now been fixed.  Introduce use of
	`->environment'.

1988-12-14 07:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.7): (block-partial-ancestry): allow
	ancestor to be same as starting block.

1988-12-13 19:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.24): Fix another case which was
	generating dangling code.

1988-12-13 14:58  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (4.18.1.1), compiler.sf
	(1.6.1.1): Changes for open-coding floating-point arithmetic.

1988-12-13 13:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/sideff.scm (1.3): When generating new code, must
	use contexts instead of blocks.

1988-12-13 12:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules2.scm (4.7): Rule for
	(OVERFLOW-TEST) must return some code.	Before, it was winning
	entirely by accident.

1988-12-13 09:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/sideff.scm (1.2): Change `block' to `context'.

1988-12-13 08:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/lvalue.scm (4.11): Delete `variable-auxiliary!'.

1988-12-13 08:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.11): [no log message]

1988-12-13 08:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.33): Lots of changes
	to implement frame reuse stuff.  See the individual log entries.

1988-12-13 08:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (4.7): Delete all of the system predicate expansions:
	variable?, etc.

1988-12-13 08:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.30): Change modifiers to return
	`unassigned'.  This will result in superior compiled code as the
	compiler will not attempt to produce the original value of the
	location being modified.

1988-12-13 08:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.10): Frame reuse changes.  Also add
	change to prevent noop from pop-frames.

1988-12-13 08:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/envopt.scm (1.4): * Change `block' to `context'
	where needed.
	
	* New abstractions support owning and disowning of block children.

1988-12-13 08:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.6): * Guarantee that
	`combination/model!' is always defined.
	
	* Change `block' to `context' where needed.

1988-12-13 08:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/blktyp.scm (4.8): * Make changes to convert
	`block' to `context'.
	
	* Update multiple value stuff.
	
	* Move `original-block-parent' to "base/blocks.scm".
	
	* Add pass which runs afterwards to find closures and install the
	correct reference context for each.

1988-12-13 08:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.18): * Fix bug in
	`syntax-files!': was not causing circularly dependent files to
	recompile one another when needed.
	
	* Add declarations for new files.

1988-12-13 08:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.9): * Change `discriminate-items' to
	guarantee that the order of the results is the same as the order of
	the argument.
	
	* Update multiple value stuff.

1988-12-13 08:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.13): * Add new passes to setup frame
	adjustments of combinations, compute subproblem free variables, and
	recompute closure contexts.

1988-12-13 08:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/proced.scm (4.8): * Change `block' to `context'
	where needed.
	
	* Define `procedure-arity-encoding'.
	
	* Delete `set-procedure-closing-block!'.
	
	* Redefine `procedure/type' to discriminate closure and
	trivial-closure types.

1988-12-13 08:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/object.scm (4.5):
	`tagged-vector/subclass-predicate' should use `vector-tag?'
	predicate rather than `pair?'.

1988-12-13 08:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/lvalue.scm (4.10): * Add new lvalue slots:
	`initial-{for,back}ward-links'.  These correspond to
	`initial-values' in that they are the first order links of the DFG.
	
	* Delete `popping-limits' slot from variables.
	
	* Change `variable-in-known-location?' to accept a context rather
	than a block.

1988-12-13 08:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (4.8): * Change `block' fields to
	`context' where appropriate.
	
	* Add two new items to combinations: `frame-adjustment' and
	`reuse-existing-frame?'.
	
	* Add `context' field to `true-test' node.
	
	* Add new node type: `stack-overwrite'.
	
	* Delete `node/offset'.  Offsets are now stored in reference
	contexts.

1988-12-13 08:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.13): Significant
	repackaging.

1988-12-13 08:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.6): Redefine `block-original-parent'
	to be `original-block-parent' in keeping with changes to closure
	analysis.

1988-12-13 07:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.6): Change analysis in two ways: (1)
	static link computation now uses `initial-backward-links' to get
	much more precise notion of when parent is the stack link.  (2)
	dynamic link computation stores all of the popping limits in the
	caller block for use by the combination code generator.

1988-12-12 17:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.11): UUO links to entities
	and some procedures with optional arguments have been improved.

1988-12-12 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.12): New type: stack-overwrite. 
	Remove changes to delete unreachable nodes, as this code was buggy.
	 No longer needed because of changes to code generator, but we'll
	replace it soon anyway.

1988-12-12 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (4.9): Block->context changes. 
	Improve handling of static links.  New type: stack-overwrite.

1988-12-12 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (4.12): Multiple value changes. 
	Block->context changes.

1988-12-12 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgproc.scm (4.6): Many changes for frame reuse
	stuff.

1988-12-12 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.9): Significant changes for frame
	reuse stuff.

1988-12-12 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.23): * Change `block' to `context'
	where needed.
	
	* Change open coding stuff to avoid generating code that will be
	dangling in the output.

1988-12-12 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/fndblk.scm (4.10): * Move everything except the
	core block search stuff to another file.
	
	* Update to use reference contexts.

1988-12-12 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simple.scm (4.3): Many changes: see the diff.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.10): Major changes to accomodate
	frame reuse.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/offset.scm (4.6): Significant changes: see the
	diff.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/conect.scm (4.4): Add new node type:
	`stack-overwrite'

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.12): * Make necessary changes to
	convert `block' to `context'.
	
	* Initialize the contexts at the end of FG generation.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/subprb.scm (4.4): * Add `free-variables' slot to
	subproblem objects.
	
	* Define `continuation*/type' and `set-continuation*/type!'.
	
	* Define `continuation*/context'.
	
	* Change `block' to `context' in virtual continuations.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/rvalue.scm (4.4): Change `block' to `context' where
	needed.

1988-12-12 16:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.64): UUO links to entities and some
	procedures with optional arguments have been improved.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.8): * Add new node type:
	`stack-overwrite'.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/contin.scm (4.6): Delete popping-limit stuff from
	continuations.	Also delete `reduction-continuation/block' which
	was never used.

1988-12-12 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.5): * Add `popping-limits' components
	to block.
	
	* Change `ic-block?' to be non-integrable.
	
	* Change `block-ancestry' to eliminate random extra argument.
	
	* Define new procedure `block-partial-ancestry' which is like
	`block-ancestry' except that it stops at a given ancestor.
	
	* Make `stack-block/static-link?' be more sophisticated: static
	link is not needed unless the block has some free variables.  Also,
	for IC parent, check to see if lookup is being used on the parent.
	
	* Define new procedures `block-original-parent', and
	`{dis,}own-block-child!'.

1988-12-12 16:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/refctx.scm (1.1), fgopt/reuse.scm (1.1),
	fgopt/subfre.scm (1.1), fgopt/reord.scm (1.1), rtlgen/fndvar.scm
	(1.1): Initial revision

1988-12-12 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.16.1.2): * Fix bug in
	`syntax-files!': was not causing circularly dependent files to
	recompile one another when needed.
	
	* Add declarations for new files.

1988-12-12 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcompr.scm (1.8): Fix some bugs: (1) was allowing
	volatile expressions to be moved around; (2) was moving stack
	references over assignments to the same stack location.

1988-12-12 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlexp.scm (4.11): New definitions:
	rtl:invocation-prefix? rtl:volatile-expression?
	rtl:stack-reference-expression? rtl:expression-contains?

1988-12-12 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simapp.scm (4.4): Change to store the initial
	links as well as the transitive closure.

1988-12-12 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.8): * Add two new slots to lvalue
	type.
	
	* Change vector modification definitions to return `unspecific'
	rather than the original value.

1988-12-12 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.11.1.2): New type: stack-overwrite.
	 Remove changes to delete unreachable nodes, as this code was
	buggy.	No longer needed because of changes to code generator, but
	we'll replace it soon anyway.

1988-12-12 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (4.8.1.2): Block->context changes. 
	Improve handling of static links.  New type: stack-overwrite.

1988-12-12 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (4.11.1.2): Multiple value changes. 
	Block->context changes.

1988-12-12 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.8.1.2): Frame reuse changes.  Also
	add change to prevent noop from pop-frames.

1988-12-12 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgproc.scm (4.5.1.2): Many changes for frame
	reuse stuff.

1988-12-12 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.8.1.2): Significant changes for
	frame reuse stuff.

1988-12-12 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.22.1.2): * Change `block' to
	`context' where needed.
	
	* Change open coding stuff to avoid generating code that will be
	dangling in the output.

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/fndblk.scm (4.9.1.2): * Move everything except
	the core block search stuff to another file.
	
	* Update to use reference contexts.

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simple.scm (4.2.1.2): Many changes: see the diff.

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.9.1.2): Major changes to accomodate
	frame reuse.

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/offset.scm (4.5.1.2): Significant changes: see the
	diff.

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/envopt.scm (1.1.1.2): * Change `block' to
	`context' where needed.
	
	* New abstractions support owning and disowning of block children.

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.5.1.2): Change analysis in two ways:
	(1) static link computation now uses `initial-backward-links' to
	get much more precise notion of when parent is the stack link.	(2)
	dynamic link computation stores all of the popping limits in the
	caller block for use by the combination code generator.

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/conect.scm (4.3.1.2): Add new node type:
	`stack-overwrite'

1988-12-12 16:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.4.1.2): * Guarantee that
	`combination/model!' is always defined.
	
	* Change `block' to `context' where needed.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/blktyp.scm (4.5.1.2): * Make changes to convert
	`block' to `context'.
	
	* Update multiple value stuff.
	
	* Move `block-original-parent' elsewhere.
	
	* Add pass which runs afterwards to find closures and install the
	correct reference context for each.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.11.1.2): * Make necessary changes to
	convert `block' to `context'.
	
	* Initialize the contexts at the end of FG generation.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.6.1.2): * Change `discriminate-items'
	to guarantee that the order of the results is the same as the order
	of the argument.
	
	* Update multiple value stuff.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.11.1.2): * Add new passes to setup
	frame adjustments of combinations, compute subproblem free
	variables, and recompute closure contexts.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/subprb.scm (4.3.1.2): * Add `free-variables' slot
	to subproblem objects.
	
	* Define `continuation*/type' and `set-continuation*/type!'.
	
	* Define `continuation*/context'.
	
	* Change `block' to `context' in virtual continuations.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/rvalue.scm (4.3.1.2): Change `block' to `context'
	where needed.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/proced.scm (4.6.1.2): * Change `block' to `context'
	where needed.
	
	* Define `procedure-arity-encoding'.
	
	* Delete `set-procedure-closing-block!'.
	
	* Redefine `procedure/type' to discriminate closure and
	trivial-closure types.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/object.scm (4.3.1.2):
	`tagged-vector/subclass-predicate' should use `vector-tag?'
	predicate rather than `pair?'.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/lvalue.scm (4.7.1.2): * Add new lvalue slots:
	`initial-{for,back}ward-links'.  These correspond to
	`initial-values' in that they are the first order links of the DFG.
	
	* Delete `popping-limits' slot from variables.
	
	* Change `variable-in-known-location?' to accept a context rather
	than a block.

1988-12-12 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.7.1.2): * Add new node type:
	`stack-overwrite'.

1988-12-12 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (4.6.1.2): * Change `block' fields to
	`context' where appropriate.
	
	* Add two new items to combinations: `frame-adjustment' and
	`reuse-existing-frame?'.
	
	* Add `context' field to `true-test' node.
	
	* Add new node type: `stack-overwrite'.
	
	* Delete `node/offset'.  Offsets are now stored in reference
	contexts.

1988-12-12 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/contin.scm (4.5.1.2): Delete popping-limit stuff
	from continuations.  Also delete `reduction-continuation/block'
	which was never used.

1988-12-12 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.4.1.2): * Add `popping-limits'
	components to block.
	
	* Change `ic-block?' to be non-integrable.
	
	* Change `block-ancestry' to eliminate random extra argument.
	
	* Define new procedure `block-partial-ancestry' which is like
	`block-ancestry' except that it stops at a given ancestor.
	
	* Make `stack-block/static-link?' be more sophisticated: static
	link is not needed unless the block has some free variables.  Also,
	for IC parent, check to see if lookup is being used on the parent.
	
	* Define new procedures `block-original-parent', and
	`{dis,}own-block-child!'.

1988-12-12 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.11.1.2): Significant
	repackaging.

1988-12-12 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (4.3): Delete all of the system predicate
	expansions: variable?, etc.

1988-12-11 06:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.4): Change modifiers to return
	`unassigned'.  This will result in superior compiled code as the
	compiler will not attempt to produce the original value of the
	location being modified.

1988-12-08 05:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hooks.c (9.34): Missing \n\ in documentation string.

1988-12-06 20:58  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.12.1.1): New branch for inlining
	floating-point arithmetic.

1988-12-06 20:15  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.7.1.1): New branch for inlining
	floating-point arithmetic.

1988-12-06 17:45  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.18.1.1): New branch for
	inlining floating-point arithmetic.

1988-12-06 17:40  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.22.2.1),
	machines/bobcat/lapgen.scm (4.18.1.1), back/lapgn2.scm (1.9.1.1):
	New branch for inlining floating-point arithmetic.

1988-12-06 17:36  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/machin.scm (4.13.1.1),
	rtlbase/rgraph.scm (4.4.1.1), rtlbase/rtlty1.scm (4.13.1.1),
	rtlbase/rtlcon.scm (4.15.1.1), rtlbase/rtlexp.scm (4.10.1.1): New
	branch for inlining floating-point arithmetic.

1988-12-06 17:32  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/back/: regmap.scm (4.7.1.1), regmap.scm (4.7.1.2): New
	branch for inlining floating-point arithmetic.

1988-12-06 16:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simple.scm (4.2.1.1): [no log message]

1988-12-06 13:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.9): Rewrite constant folding and
	closure analysis phases.  Write two new phases: compute-call-graph
	and side-effect-analysis.

1988-12-06 13:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/sideff.scm (1.1): Initial revision

1988-12-06 13:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.32),
	fggen/declar.scm (1.5), fgopt/blktyp.scm (4.7), fgopt/closan.scm
	(4.5), fgopt/envopt.scm (1.3), fgopt/folcon.scm (4.5),
	fgopt/outer.scm (4.5): Rewrite constant folding and closure
	analysis phases.  Write two new phases: compute-call-graph and
	side-effect-analysis.

1988-12-06 13:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/ctypes.scm (4.7), base/lvalue.scm (4.9),
	base/object.scm (4.4), base/proced.scm (4.7), base/switch.scm
	(4.10), base/toplev.scm (4.12), base/utils.scm (4.8),
	machines/bobcat/decls.scm (4.17): Rewrite constant folding and
	closure analysis phases.  Write two new phases: compute-call-graph
	and side-effect-analysis.

1988-12-06 13:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.12): Add a couple of fg
	optimizer phases:    - compute call graph    - side effect analysis

1988-12-06 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.7.1.1): [no log message]

1988-12-05 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.11.1.1): [no log message]

1988-12-05 23:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.16.1.1): [no log message]

1988-12-05 22:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/conect.scm (4.3.1.1): [no log message]

1988-12-05 21:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/offset.scm (4.5.1.1): [no log message]

1988-12-05 18:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.7): Add a list? check to syntax-expression
	and some paranoia to syntax-sequence.

1988-12-05 18:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.11.1.1): [no log message]

1988-12-05 06:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.5.1.1): [no log message]

1988-12-01 20:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/envopt.scm (1.1.1.1): [no log message]

1988-12-01 20:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/lvalue.scm (4.7.1.1): [no log message]

1988-12-01 20:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/contin.scm (4.5.1.1): [no log message]

1988-12-01 17:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.8.1.1): [no log message]

1988-12-01 17:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.22.1.1): [no log message]

1988-12-01 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fggen/fggen.scm (4.11.1.1), fgopt/blktyp.scm
	(4.5.1.1): [no log message]

1988-12-01 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/object.scm (4.3.1.1): [no log message]

1988-11-30 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/rvalue.scm (4.3.1.1): [no log message]

1988-11-30 17:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/blocks.scm (4.4.1.1): [no log message]

1988-11-30 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (4.11.1.1): [no log message]

1988-11-30 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgproc.scm (4.5.1.1): [no log message]

1988-11-30 16:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/proced.scm (4.6.1.1): [no log message]

1988-11-30 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (4.6.1.1): [no log message]

1988-11-30 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/subprb.scm (4.3.1.1): [no log message]

1988-11-30 00:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (4.8.1.1): [no log message]

1988-11-30 00:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/fndblk.scm (4.9.1.1): [no log message]

1988-11-29 18:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.8.1.1): [no log message]

1988-11-29 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.4.1.1): [no log message]

1988-11-29 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.6.1.1): [no log message]

1988-11-29 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.11.1.1): [no log
	message]

1988-11-29 01:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.9.1.1): [no log message]

1988-11-17 00:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.31): Fix a bug in
	blktyp, and allow envopt to keep data structures when desired.

1988-11-17 00:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/blktyp.scm (4.6): 1) Integrated parameters are
	filtered before we design the closure block.  This fixes a bug by
	which closures with no free variables were created.
	
	2) Add paranoia checks to make sure that a trivial closure remains
	trivial after its closure block is computed.  This is important
	because if it was previously considered trivial, it may already
	have been integrated into some other closure.  This check would
	have caught the bug fixed in 1.

1988-11-17 00:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/envopt.scm (1.2): free callers and callees lists
	are preserved if compiler:preserve-data-structures? is true.

1988-11-15 11:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.30): Improve constant
	folding: - Mutable objects can now be known values of variables,
	although operations will not be open coded over them.  - The outer
	analysis has been changed to have passed-out and passed-in counters
	rather than flags.  In this way it is easy to recompute their
	values value after an operation has been constant folded, and
	decide whether further propagation can occur or not.  -
	Non-primitive operations can now be constant folded.  There is a
	new declaration: USUAL-DEFINITION which allows the variables to
	which it applies to be constant folded to their usual (global)
	definition.  Examples of this are ATAN, GCD, etc.  - Fix bug in
	base/utils.scm by which temporary label names were being interned. 
	This would cause the compiler to run out of storage after many
	compilations.

1988-11-15 11:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: fgopt/folcon.scm (4.4), fgopt/outer.scm (4.4),
	base/utils.scm (4.7), base/lvalue.scm (4.8), fggen/declar.scm
	(1.4): Improve constant folding: - Mutable objects can now be known
	values of variables, although operations will not be open coded
	over them.  - The outer analysis has been changed to have
	passed-out and passed-in counters rather than flags.  In this way
	it is easy to recompute their values value after an operation has
	been constant folded, and decide whether further propagation can
	occur or not.  - Non-primitive operations can now be constant
	folded.  There is a new declaration: USUAL-DEFINITION which allows
	the variables to which it applies to be constant folded to their
	usual (global) definition.  Examples of this are ATAN, GCD, etc.  -
	Fix bug in base/utils.scm by which temporary label names were being
	interned.  This would cause the compiler to run out of storage
	after many compilations.

1988-11-12 04:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.29): Add `flush-output' operation to file
	output ports.  This change requires microcode 10.63 or later.

1988-11-12 01:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.33), version.h (10.63): Rewrite unix file
	opening code to be really careful about what kinds of files can be
	opened, and how.  As of now, only regular files and character
	special files are allowed; symbolic links are detected when opening
	output files and deleted, thus overwriting the link rather than
	writing through it.
	
	Implement new primitive `file-flush-output' which is needed since
	we changed file I/O to use buffered stdio some time ago.

1988-11-10 01:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (10.62), interp.c (9.47): Fix self
	evaluation of compiled entries which are not compiled expressions.

1988-11-09 11:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.5): Change to use `for' loop on
	subdirectories.

1988-11-09 05:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.cbf (1.1), sf/sf.cbf (1.1), cref/cref.cbf (1.1):
	Initial revision

1988-11-08 16:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (4.6): Add fix:<mumble> to the list of
	constant-foldable-primitives.

1988-11-08 07:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: lapgen.scm (4.18), rules3.scm (4.14):
	Generalize rule for `cons-closure' so that it handles more types of
	target expressions.

1988-11-08 06:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/rgproc.scm (4.5), rtlgen/rgrval.scm (4.11),
	rtlopt/rcse1.scm (4.15), machines/bobcat/make.scm-68040 (4.29):
	Change `cons-closure' from a statement to an expression.  This
	allows us more freedom in choosing the target register.

1988-11-08 06:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.13): Change `cons-closure'
	from a statement to an expression.  This allows us more freedom in
	choosing the target register.

1988-11-08 03:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/dassm2.scm (4.10), rtlbase/rtlty2.scm
	(4.6): Change `cons-closure' from a statement to an expression. 
	This allows us more freedom in choosing the target register.

1988-11-08 03:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlty1.scm (4.13), rtlbase/rtlexp.scm (4.10),
	machines/bobcat/machin.scm (4.13): Change `cons-closure' from a
	statement to an expression.  This allows us more freedom in
	choosing the target register.

1988-11-08 02:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (10.61), comutl.c (1.14): Add new
	primitive, `compiled-closure->entry'.

1988-11-08 02:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/stackp.scm (1.4): (rcd): Fix case where there is no
	error continuation.  Allow specification of continuation without
	filename.

1988-11-08 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: udata.scm (14.5), unpars.scm (14.9), version.scm
	(14.28): Add new primitive `compiled-closure->entry', and new
	predicate `compiled-closure?'.	Change the unparser to print
	compiled code entries differently, showing their offset and
	absolute address for better debugging.	Closures show this
	information for their entry point, and additionally show the
	address of the closure itself.

1988-11-07 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (4.6): Kill dead registers when not
	doing control merge.

1988-11-07 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/mermap.scm (1.2): Fix incorrect reference.

1988-11-07 09:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (4.7): Fix unbound variable bug.  Delete
	unused variable.

1988-11-07 09:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (4.5): Substantial rewrite of code that
	computes register map of a basic block with multiple "previous"
	edges.	The algorithm is roughly as follows:
	
	* Wait until all of the "previous" nodes have been generated.  This
	depends on the absence of explicit loops in the graph, and will
	require some rethinking when we introduce these loops.
	
	* Compute a "weighted average" register map (the target map) from
	the maps of the "previous" nodes.  This is a heuristic computation,
	but it seems to have about the right effect for simple cases.
	
	* Separate the "previous" maps into equivalence classes, where all
	the maps in an equivalence class can be converted to the target map
	with an identical sequence of instructions.  This could be made
	substantially more sophisticated, but for now it will do.
	
	* For each edge, insert code to coerce the "previous" map into the
	target map.  Heed the equivalence classes that were just computed,
	and causes all maps in a given equivalence class to share a single
	code sequence.

1988-11-07 08:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/mermap.scm (1.1): Initial revision

1988-11-07 08:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.11): Add new file:
	"back/mermap".

1988-11-07 08:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.9): (delete-dead-registers!): Rewrite
	to accomodate change to `delete-pseudo-registers'.

1988-11-07 08:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcfg.scm (4.6): (bblock-compress!): when
	counting previous edges to determine if this is the beginning of a
	basic block, we must include edges which have no left node.

1988-11-07 08:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (4.6): Fix bugs in previously unused
	`coerce-map-instructions'.  Add new procedures
	`register-map:keep-live-registers' and `map-equal?'.

1988-11-07 08:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.16): Add dependency for new
	file: "back/mermap".

1988-11-06 09:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.28): Improve generic
	arithmetic by adding branch preferences to type, range, and
	overflow tests.  These preferences cause the linearizer to attempt
	to optimize for the preferred branch.

1988-11-06 09:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.10): Export switches to
	global environment.

1988-11-06 09:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtline.scm (4.8), back/linear.scm (4.7): Heed
	branch preferences when deciding which branch to generate in line.

1988-11-06 09:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.22): Specify branch preferences for
	things like type, range, and overflow checks; the linearizer will
	heed these when making decisions about which branch falls through. 
	Recode string operations to do type and range checks if these are
	enabled.

1988-11-06 09:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcfg.scm (4.5): Add operations to allow
	specification of branch preference in pblocks.

1988-11-06 08:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/folcon.scm (4.3): An lvalue whose only backward
	link is itself may be known.  This is a patch. General loops should
	work as well.

1988-11-05 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.15):
	"machines/bobcat/dassm1" now uses the compiler syntax table.

1988-11-05 17:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.cbf (1.1): Initial revision

1988-11-05 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm1.scm (4.9): Fix unbound variable
	error.

1988-11-05 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/subst.scm (4.4): Efficiency improvement to last change.

1988-11-05 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.27): [no log message]

1988-11-04 22:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.21): Last change was a little too
	ambitious.  Back off a bit.

1988-11-04 21:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.14): Must adjust stack pointer for
	special primitive invocations.

1988-11-04 17:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.20): Change code generation for
	`&=' to significantly improve output code.  Many minor editing
	changes also.

1988-11-04 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.18): Fix typo introduced
	in last changes.

1988-11-04 07:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.17): Patch up several
	rules to capture common abstractions.  Add a couple of new rules
	which are conglomerates of existing rules, and which can be more
	efficiently generated as a unit.

1988-11-04 06:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: opncod.scm (4.18), opncod.scm (4.19): Add
	declarations to eliminate "unreferenced bound variable" warnings.

1988-11-04 05:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.17): Define procedures to
	capture the object->{type,datum,address} conversions.

1988-11-04 05:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgstmt.scm (4.8), opncod.scm (4.17), rgcomb.scm
	(4.8), rgretn.scm (4.8), rgrval.scm (4.10): Define new procedure
	`load-temporary-register' which abstracts the idea of loading a
	temporary with the value of some expression, and then using the
	temporary for something.  This is important because of the timing
	problems associated with `rtl:make-assignment'.  Most usages of the
	latter are now translated into usages of the new procedure.

1988-11-04 05:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.15): Delete random definition of
	`rtl:make-address->fixnum'.  This was a duplicate definition, but
	what is worse, it caused incorrect code to be generated.  This
	happened because `object->fixnum' gets elided in certain places, in
	particular the places where `address->fixnum' is used.

1988-11-04 05:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.16): Conversion of a
	fixnum to an address must be a logical right shift, not an
	arithmetic right shift.  This is because an address is an unsigned
	quantity; thus a fixnum representing an address must also be
	treated as unsigned.

1988-11-03 21:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm1.scm (4.8), dassm2.scm (4.9),
	compiler.pkg (1.9): Rename disassembler/write-compiled-entry to
	compiler:disassemble, export it to the global package, and add some
	cleverness about printing linkage sections.

1988-11-03 03:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.14): Don't run second pass
	unless there are some circularly dependent files being resyntaxed.

1988-11-03 03:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.32), version.h (10.60): Don't use the
	`utime()' or `utimes()' system calls to touch files, because they
	are subject to clock skew problems when used on remote NFS files. 
	Also, add check for file type to file touching code.

1988-11-03 03:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.13): [no log message]

1988-11-03 03:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.12): Echo file deletions,
	and show passes.

1988-11-03 02:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.11): Echo message informing
	user when files are being touched.  Fix big: was touching file with
	no type!  Must touch files that SF outputs.  Always touch .bin
	file, conditionally touch .ext and .unf files.

1988-11-03 02:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.15): Redefine
	`invert-cc-noncommutative'.  This was originally designed to be
	like `invert-cc'.  However, it is used to adjust the condition code
	for the situation of reversing the arguments to a conditional,
	while `invert-cc' is used to adjust for reversing the branches. 
	These are quite different.

1988-11-03 01:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.13): Because special primitive
	invocations may now have `next' nodes, it is necessary to
	invalidate at least the value register and free pointer.  Perhaps
	we need to invalidate other things as well?

1988-11-03 01:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.12): Define these
	procedures:	interpreter-value-register    
	interpreter-environment-register    
	interpreter-environment-register?

1988-11-02 22:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.10): Reset the set of
	source nodes whenever the compiler band is reloaded.  This should
	help prevent problems with non-existent files.	Also, during second
	pass to resyntax files that have circular dependencies, touch the
	dependents that have been syntaxed in the first pass, so that they
	have the proper time relationships to the resyntaxed files.

1988-11-02 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.27): Eliminate random
	unreferenced labels from RTL and LAP output.  Eliminate dead
	branches to continuations.  Implement declarations to disable
	detection of traps in cached variable references and assignments.

1988-11-02 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.14):
	(reference->register-transfer): When source was an address register
	this compared it to target, succeeding when target was a data
	register.

1988-11-02 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/declar.scm (1.3): Use definition of
	`compiler:default-top-level-declarations'.  Add new class of
	variables: `assigned'.	Add two new declarations:
	`ignore-assignment-traps' and  `ignore-reference-traps'.

1988-11-02 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.9): Add definition of
	`compiler:default-top-level-declarations', used by declaration
	processor.  This is used to force defaults, and may also be fluid
	bound to provide special defaults.

1988-11-02 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rgraph.scm (4.4): Redefine
	`add-rgraph-entry-node!' to be `add-rgraph-entry-edge!', because
	the caller needs an edge to that node, and we wish to avoid
	creation of duplicate edges.

1988-11-02 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtline.scm (4.7), back/linear.scm (4.6): Be
	more careful when `sblock-continuation' is known.  If the
	continuation has already been generated, we were previously
	generating a jump to the continuation at this point.  This jump was
	dead code because nobody referenced it.

1988-11-02 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (4.9): Implement
	`ignore-reference-traps' declaration on free variables.

1988-11-02 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (4.7): Implement
	`ignore-assignment-traps' declaration on free variables.

1988-11-02 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.11): (generate/rgraph): Make only a
	single edge for the entry of each rgraph.  This is important
	because the linearizer looks at the number of edges to determine
	when labels are needed.

1988-11-02 16:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.8): Fix bug by which attempting to print a
	bogus object would kill Scheme.  It now prints #[UNDEFINED-TYPE:<n>
	<datum>] and does NOT hash the object.

1988-11-01 17:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.12): Fix missing label
	bug.  OPEN-PROCEDURE-HEADERS define both the internal and external
	entry points always.

1988-10-31 23:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (4.9), make.scm-68040
	(4.26), rules3.scm (4.11): - "Self consistent closing": A group of
	procedures whose only free variables represent each other will be
	represented as trivial closures that reference each other by direct
	pc offsets.
	
	- Known trivial closure variables are now integrated.
	
	- Similar procedures used in operator position may not be closed. 
	There is a notion of a virtual closure: A closure whose environment
	is known, but whose code pointer is not.
	
	- Procedures now remember why they were closed.
	
	- Once-only assignments to top-level or completely free variables
	are done with local-assignment rather than with assignment caches.
	
	- Variuos fixes to the closure analysis.  Lambda expressions in
	operand position are closed only if they are escaping their
	context.  This was broken when the uniform closing strategy (all
	closures close to the top) was introduced in the front end.

1988-10-31 23:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.16), rtlgen/rgcomb.scm (4.7),
	rtlgen/rgproc.scm (4.4), rtlgen/rgrval.scm (4.8), rtlopt/rcse1.scm
	(4.12), machines/bobcat/dassm2.scm (4.8): - "Self consistent
	closing": A group of procedures whose only free variables represent
	each other will be represented as trivial closures that reference
	each other by direct pc offsets.
	
	- Known trivial closure variables are now integrated.
	
	- Similar procedures used in operator position may not be closed. 
	There is a notion of a virtual closure: A closure whose environment
	is known, but whose code pointer is not.
	
	- Procedures now remember why they were closed.
	
	- Once-only assignments to top-level or completely free variables
	are done with local-assignment rather than with assignment caches.
	
	- Variuos fixes to the closure analysis.  Lambda expressions in
	operand position are closed only if they are escaping their
	context.  This was broken when the uniform closing strategy (all
	closures close to the top) was introduced in the front end.

1988-10-31 23:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/envopt.scm (1.1): Initial revision

1988-10-31 23:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: fgopt/blktyp.scm (4.5), fgopt/closan.scm (4.4),
	fgopt/offset.scm (4.5), fgopt/order.scm (4.9), rtlbase/rtlexp.scm
	(4.9), rtlbase/rtlty1.scm (4.12), rtlgen/fndblk.scm (4.9): - "Self
	consistent closing": A group of procedures whose only free
	variables represent each other will be represented as trivial
	closures that reference each other by direct pc offsets.
	
	- Known trivial closure variables are now integrated.
	
	- Similar procedures used in operator position may not be closed. 
	There is a notion of a virtual closure: A closure whose environment
	is known, but whose code pointer is not.
	
	- Procedures now remember why they were closed.
	
	- Once-only assignments to top-level or completely free variables
	are done with local-assignment rather than with assignment caches.
	
	- Variuos fixes to the closure analysis.  Lambda expressions in
	operand position are closed only if they are escaping their
	context.  This was broken when the uniform closing strategy (all
	closures close to the top) was introduced in the front end.

1988-10-31 23:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/lvalue.scm (4.7), base/macros.scm (4.7),
	base/proced.scm (4.6), base/switch.scm (4.8), base/toplev.scm
	(4.11), fggen/canon.scm (1.3), fggen/fggen.scm (4.11): - "Self
	consistent closing": A group of procedures whose only free
	variables represent each other will be represented as trivial
	closures that reference each other by direct pc offsets.
	
	- Known trivial closure variables are now integrated.
	
	- Similar procedures used in operator position may not be closed. 
	There is a notion of a virtual closure: A closure whose environment
	is known, but whose code pointer is not.
	
	- Procedures now remember why they were closed.
	
	- Once-only assignments to top-level or completely free variables
	are done with local-assignment rather than with assignment caches.
	
	- Variuos fixes to the closure analysis.  Lambda expressions in
	operand position are closed only if they are escaping their
	context.  This was broken when the uniform closing strategy (all
	closures close to the top) was introduced in the front end.

1988-10-31 23:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/compiler.pkg (1.8),
	machines/bobcat/compiler.sf (1.6), base/blocks.scm (4.4),
	base/ctypes.scm (4.6): - "Self consistent closing": A group of
	procedures whose only free variables represent each other will be
	represented as trivial closures that reference each other by direct
	pc offsets.
	
	- Known trivial closure variables are now integrated.
	
	- Similar procedures used in operator position may not be closed. 
	There is a notion of a virtual closure: A closure whose environment
	is known, but whose code pointer is not.
	
	- Procedures now remember why they were closed.
	
	- Once-only assignments to top-level or completely free variables
	are done with local-assignment rather than with assignment caches.
	
	- Variuos fixes to the closure analysis.  Lambda expressions in
	operand position are closed only if they are escaping their
	context.  This was broken when the uniform closing strategy (all
	closures close to the top) was introduced in the front end.

1988-10-30 09:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/pardec.scm (4.2): Add sf/usual-integrations-default-deletions.

1988-10-30 09:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/toplev.scm (4.3): Add sf/usual-integrations-default-deletions.

1988-10-30 09:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/sf.pkg (4.3): Add sf/usual-integrations-default-deletions.

1988-10-29 01:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/Makefile (1.4): Add stage3 and merge with markf's
	makefile.

1988-10-28 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: defstr.scm (14.3), lambda.scm (14.3), make.scm (14.5),
	packag.scm (14.5), pathnm.scm (14.2), rep.scm (14.8), runtime.pkg
	(14.22), version.scm (14.26): Change `define-structure' macro to
	handle `named' option better, allowing it to be a constant which is
	used as the tag.  This allows redefinition of several structures in
	the runtime system, making them fasdumpable.  Change handling of
	packages to attach a package to its environment if that environment
	is not already attached to another package.  Change the rep loop to
	show this package name when the package is changed; also add
	command `pe' to return the current package.

1988-10-28 20:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: make.scm (4.6), sf.pkg (4.2), sf.sf (4.3), toplev.scm (4.2),
	usiexp.scm (4.2), xform.scm (4.2): Add expansion rules for
	predicates like `vector?', `char?', etc. that expand into code that
	the compiler can open code pretty well.  Add new global variables
	`sf/default-syntax-table' and `sf/top-level-definitions', the
	latter being a list of names which should not be treated specially
	by `usual-integrations'.

1988-10-28 13:47  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.13): Fixed bug when
	multiplying a number by itself.

1988-10-28 03:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: cref.pkg (1.2), make.scm (1.3), object.scm (1.2),
	redpkg.scm (1.2): Several changes to make package model objects
	fasdumpable.

1988-10-27 03:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/stackp.scm (1.3): Don't forget to output the return
	codes with their frames.

1988-10-27 01:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: debug.c (9.31), version.h (10.59): More debugging
	support.

1988-10-26 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: debug.c (9.30), version.h (10.58): Add several new
	entries to support debugging of compiled code.

1988-10-26 16:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/returns.h (9.34): Adjust `RETURN_NAME_TABLE' to contain
	all current return address names; some were missing.

1988-10-26 08:33  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.10): Merged 4.9 with 4.8.1.2.

1988-10-26 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/stackp.scm (1.2): Update for new runtime system. 
	Much simpler now that stack parser does most of the work.

1988-10-25 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.57): (compiled_entry_to_block): `suba.w'
	instruction sign extends its first argument, which in this case is
	exactly the wrong thing.  Rewrite this to zero extend the 16 bit
	offset.

1988-10-24 21:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.23.1.4): Continuation
	can still be sometimes known even when it is passed out.  This was
	causing bug where continuation was "never known", but because the
	return application knew it, it was assuming "sometimes known".

1988-10-24 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/operan.scm (4.4): Continuation can still be
	sometimes known even when it is passed out.  This was causing bug
	where continuation was "never known", but because the return
	application knew it, it was assuming "sometimes known".

1988-10-21 18:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxdir.scm (14.3), version.scm (14.25): Change
	directory reader to default the name/type/version to WILD, and to
	be faster for that default case.  Also add optional second argument
	to disable sorting of output.  These changes combine to give a
	fairly fast interface to the underlying directory reader.

1988-10-21 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.7): If slashification is turned off, it is
	still necessary to slashify non-ASCII characters because the output
	port probably won't have any representation for them.

1988-10-21 14:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.53), version.h (10.56): Make sure that
	TERM_SIGNAL control variables are initialized correctly even when
	`dump-world' or job control is used.  Also, force control-g
	synchronization under Emacs for all unix operating systems.

1988-10-21 10:20  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.11.1.1): Added method for
	OVERFLOW-TEST in support of generic arithmetic.

1988-10-21 02:47  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.14): Two copies of the copyright
	message at beginning of file; removed one.

1988-10-20 23:33  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.16): Removed extra
	copyright message; had two copies of it at the beginning of the
	file.

1988-10-20 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.24): Several changes to make unix signals
	work right.

1988-10-20 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.3): Change this code to use the new
	`clear-interrupts!' primitive to disable interrupt bits when the
	interrupt handlers are invoked.

1988-10-20 20:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.6): (disk-save): Unless IDENTIFY is a
	string, return a boolean value.

1988-10-20 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.5): Fix bug in `disk-save': when the
	IDENTIFY argument is #F, we should return #F just after the save,
	and #T after a restore.

1988-10-20 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.52), dmpwrld.c (9.28), hooks.c (9.33),
	sysprim.c (9.31), version.h (10.55): Fix some problems with unix
	signals: (1) Emacs uses SIGHUP to kill a process when its buffer is
	killed, so treat SIGHUP differently if under Emacs -- also don't
	print messages in this case as the buffer is dead; (2) don't ask
	for core dump if signal received.
	
	Also define new primitive `clear-interrupts!'; change
	`get-next-interrupt-character' and `setup-timer-interrupt' so they
	don't clear the interrupt bit.	It is now the responsibility of the
	runtime system to clear the bit when it gets the interrupt.

1988-10-20 14:50  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.25): Another stab at
	open coded generic arithmetic (stiil no floating point yet).

1988-10-20 14:44  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlexp.scm (4.8.1.1): Added FIXNUM->ADDRESS and
	ADDRESS->FIXNUM as non-object-valued-expressions.

1988-10-20 14:34  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.10): Transferred version 4.8.1.1 onto
	the main trunk, essentially undoing 4.9 because we no longer use an
	expansion phase.

1988-10-20 14:24  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules2.scm (4.6): Added rule for
	OVERFLOW-TEST in support of generic arithmetic.

1988-10-20 14:21  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.15): Changed a bunch of
	fixnum procedures. Fixnums are now shifted 8 bit to the left before
	the operations (except multiply, where only one of the operands is
	shifted) so that overflow detection gets done automatically by the
	hardware.  Also fixed a bug in the fixnum register*register rule
	which was manifested when the two source registers were the same
	and we could alias them with the target.

1988-10-20 14:15  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (4.11): Added generic arithmetic rtl
	types and overflow-test predicate.  Added fixnum->address and
	address->fixnum since we have changed the way fixnum's are handled
	(i.e. we shift them to the left by 8 bits now).  Removed
	rtl-constructor stuff since we don't have the expand phase anymore.

1988-10-20 13:59  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.9): In the open coding of generic
	arithmetic it is possible to create some cfg node which are in the
	rtl-graph but turn out not to be reachable from the entry edge of
	the rtl-graph (this happens when we are creating a pcfg for a type
	test but the object we are testing is a constant, for example). We
	need to make sure that rgraph/compress! removes these unreachable
	cfg nodes, because there are some algorithms which depened on all
	of node's predecessors being on a path from an entry edge of the
	rtl-graph.

1988-10-20 13:46  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.13): Added expression methods for
	generic arithmetic RTL types.

1988-10-20 13:22  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.15): Fixed bugs in generic
	arithmetic open coding.

1988-10-20 12:19  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.12): Changed a bunch of
	fixnum procedures. Fixnums are now shifted 8 bit to the left before
	the operations (except multiply, where only one of the operands is
	shifted) so that overflow detection gets done automatically by the
	hardware.

1988-10-20 12:11  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr2.scm (1.16): fixed shift
	intructions with dynamic bit counts.

1988-10-20 12:05  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/cfg3.scm (4.2): fixed pcfg*scfg->cfg!

1988-10-20 07:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.31), version.h (10.54): Improved version
	of `file-touch' is smarter, will win in more cases than previous
	version.

1988-10-19 07:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.3): Use /. suffix on directory names that
	are targets of mv commands.

1988-10-17 08:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (14.2): Add most remaining unix primitives,
	including new `file-touch'.

1988-10-17 07:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.30), version.h (10.53): Add new primitive
	`file-touch'.

1988-10-15 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules3.scm (4.10.1.1), make.scm-68040
	(4.23.1.3): Add missing rule for `invocation-prefix:dynamic-link'.

1988-10-15 17:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.23): Change `char->string' to `string'. 
	`char->string' still defined as alias.

1988-10-15 13:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: char.scm (14.2), parse.scm (14.5), string.scm (14.2),
	strott.scm (14.3), strout.scm (14.3), unpars.scm (14.6): Change
	`char->string' to `string'.  `char->string' still defined as alias.

1988-10-13 07:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.22): [no log message]

1988-10-13 06:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/rtlgen.scm (4.8.1.2), base/contin.scm (4.5),
	rtlgen/rgstmt.scm (4.6), machines/bobcat/make.scm-68040 (4.23.1.2):
	When dynamic link is in use, it must be pushed even if the
	continuation is always known.

1988-10-12 03:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.21): Make pathname parser/unparser
	packages inherit from pathname package.

1988-10-12 02:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.sf (14.2), sf/sf.sf (4.2): Add code to load the
	package modeller if needed.

1988-10-12 02:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.20): Hide these definitions from the
	global environment:
	
	parse-pathname pathname-unparse pathname-unparse-name

1988-10-07 18:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.5): Fix bug in `h' command when first
	subproblem had wraparound in reductions.

1988-10-07 04:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.19): Export `reduce-right' to the global
	environment.

1988-10-07 04:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.4): Rename `reduce-reversed' to
	`reduce-right'.

1988-10-06 12:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.29): Add a SYSTEM primitive which invokes a
	shell to execute a command.  Add documentation strings to the
	primitives in this file.

1988-10-06 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (14.3): Redefine `reduce' to perform its
	reduction in a manner compatible with Common Lisp.  Define
	`reduce-reversed' to perform a right-associative reduction.

1988-10-04 19:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr3.scm (1.16): Add missing clause to
	instr3.scm

1988-10-04 18:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.8): Make wrong number of arguments
	errors proceedable.  Extra arguments are dropped, arguments not
	present are defaulted to unassigned.

1988-10-04 10:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasdump.c (9.41): Make DUMP-BAND always dump from the
	low heap so that the probability of falling on the same addresses
	(and avoiding relocation) on restore increases.

1988-10-03 17:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.7): Fix 2 bugs:	- Known procedures
	(which are not always known operators) with optional parameters
	have their values defaulted at the call point in the known
	locations.	  - Known lexpr trivial closures are invoked as
	closures.

1988-09-29 01:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: lookup.h (9.41), utils.c (9.39): Numerous changes:
	
	- Incremental definition recaches compiled code caches rather than
	uncaching them and having them be recached at first reference.
	
	- Bands are not relocated if there is no need.
	
	- Suggestions for size parameters are printed if the image is too
	large.
	
	- cmp68020.s now works with m4 on sysV and bsd.
	
	- -recover is a new command line option which informs the microcode
	that it should attempt recovery immediately after a trap, rather
	than prompting for confirmation.
	
	- Fixed some bugs having to do with deep dynamic binding.

1988-09-29 00:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.38), fhooks.c (9.29), interp.c (9.46),
	locks.h (9.23), lookprm.c (1.3), lookup.c (9.41): Numerous changes:
	
	- Incremental definition recaches compiled code caches rather than
	uncaching them and having them be recached at first reference.
	
	- Bands are not relocated if there is no need.
	
	- Suggestions for size parameters are printed if the image is too
	large.
	
	- cmp68020.s now works with m4 on sysV and bsd.
	
	- -recover is a new command line option which informs the microcode
	that it should attempt recovery immediately after a trap, rather
	than prompting for confirmation.
	
	- Fixed some bugs having to do with deep dynamic binding.

1988-09-29 00:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (10.52), boot.c (9.51): Numerous changes:
	
	- Incremental definition recaches compiled code caches rather than
	uncaching them and having them be recached at first reference.
	
	- Bands are not relocated if there is no need.
	
	- Suggestions for size parameters are printed if the image is too
	large.
	
	- cmp68020.s now works with m4 on sysV and bsd.
	
	- -recover is a new command line option which informs the microcode
	that it should attempt recovery immediately after a trap, rather
	than prompting for confirmation.
	
	- Fixed some bugs having to do with deep dynamic binding.

1988-09-26 21:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/findprim.c (9.35): Fix quoting within documentation
	strings.

1988-09-26 21:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/extern.c (9.28): Add \n\ sequences to multiline
	document strings.

1988-09-22 14:42  Joe Marshall <jrm@zurich.ai.mit.edu>

	* sf/subst.scm (4.3): (force (delay x)) ==> x (new optimization)

1988-09-15 04:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/linear.scm (4.5), rtlbase/rtline.scm (4.6):
	Tuning to increase performance.

1988-09-15 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/linear.scm (4.4), rtlbase/rtline.scm (4.5): Label
	basic blocks that have multiple previous edges, even if those edges
	do not have nodes attached to them.  Also reorganized to guarantee
	that the labelling side effects are ordered correctly.

1988-09-15 00:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.6.1.2): Tell the user why
	each file is being syntaxed.

1988-09-14 23:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.23.1.1): When
	determining whether an lvalue has a known value, backward links to
	the lvalue itself must be ignored.
	
	If the continuation of a combination is always known, do not record
	it as the invocation continuation.  This is because the object will
	not exist, and thus its label will never be defined.
	
	Must generate assignment to continuation's register for
	continuations whose type is `PREDICATE', if they are ever known
	operators.

1988-09-14 23:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.21): Allow strings and lists for version
	numbers in systems.

1988-09-14 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (14.5): Allow strings and lists for version
	numbers in systems.

1988-09-14 02:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/folcon.scm (4.2.1.1): When determining whether an
	lvalue has a known value, backward links to the lvalue itself must
	be ignored.

1988-09-14 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.6): If the continuation of a
	combination is always known, do not record it as the invocation
	continuation.  This is because the object will not exist, and thus
	its label will never be defined.

1988-09-14 02:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.8.1.1): Must generate assignment to
	continuation's register for continuations whose type is
	`PREDICATE', if they are ever known operators.

1988-09-07 02:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.6.1.1): Add new analysis
	to determine how RTL basic blocks are related by continuations. 
	Attempt to order the linearized RTL and LAP so that continuations
	come out nearer to where they are referenced.  A unique
	continuation (very common) tries to come out immediately following
	the invocation of the procedure that returns to it.

1988-09-07 02:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/ralloc.scm (1.16): Remove code to delete basic
	blocks list from rgraphs.  This is now handled by the compiler top
	level.

1988-09-07 02:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtline.scm (4.4), back/linear.scm (4.3),
	base/toplev.scm (4.8.1.1): Add new analysis to determine how RTL
	basic blocks are related by continuations.  Attempt to order the
	linearized RTL and LAP so that continuations come out nearer to
	where they are referenced.  A unique continuation (very common)
	tries to come out immediately following the invocation of the
	procedure that returns to it.

1988-09-07 02:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcfg.scm (4.4): Add new slots to descriptor
	lists of basic blocks.

1988-09-02 16:24  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.7): Added switch to control
	generation of open coded type checking.

1988-09-02 11:01  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlexp.scm (4.8): Fixed rtl:expand-statement
	(you gotta be careful with "reverse!"!)

1988-09-02 00:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: generic.c (9.29), version.h (10.51): Change `/'
	operation to return an exact integer result when the arguments are
	both exact integers, and the second argument divides the first. 
	Otherwise a flonum is returned.

1988-09-01 16:17  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.24): Added open coding
	of generic arithmetic (without open-coding of floating point,
	though the stubs are there).

1988-09-01 15:31  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.8): Merged generic stuff
	with version 4.6.1.1

1988-09-01 15:18  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (4.10): Merged generic stuff with
	version 4.7.1.1

1988-09-01 14:51  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.14): Fixed some generic arithmetic
	stuff and merged back with version 4.10.

1988-08-31 06:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcfg.scm (4.3): Add slots to bblock structure
	to facilitate better linearization.

1988-08-31 02:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.6.1.1): Change
	`syntax-files!' to delete the ".ext" files of the nodes it has
	decided to resyntax, before doing anything else.  Then, resyntax
	the nodes with circular _after_ resyntaxing all the nodes once in
	the usual dependency order.  This order of events should guarantee
	that no old integrations are around, and should also guarantee that
	the circularly dependent nodes are syntaxed once while all their
	dependencies exist.

1988-08-31 02:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.5): Add comments and
	copyright.  Separate out loading of assembler database so that it
	can be easily evaluated in a working compiler band.  Attempt to
	reorganize so that this file can be loaded into a working compiler
	and have the right effect.

1988-08-31 02:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.23): Change back end
	of compiler to not join bit strings that will be adjacent in the
	output code.  This loses slightly on space but avoids costly bit
	string copying.
	
	Also extend RTL constructors to handle `offset' locative with
	constant base address.

1988-08-31 02:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/syntax.scm (1.22): Change `cons-syntax' and
	`append-syntax!' so that they do not attempt to join bit strings,
	but just cons them together into lists.  This will improve the
	speed of compilation with a small increase in space.

1988-08-31 02:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/syerly.scm (1.7): Change expander for
	`instruction->instruction-sequence' to use the primitive `cons'
	rather than an absolute reference to that name.

1988-08-31 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/insseq.scm (4.2): Change
	`append-instruction-sequences!' so that it does not attempt to join
	two bit strings that are adjacent in the resulting sequence.  The
	compiler spends alot of time joining such bit strings, with only
	small space savings.

1988-08-31 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.2): Change rule for `locked' to check top
	level directory, and to use definition of `SOURCES' macro.

1988-08-31 02:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/inerly.scm (1.6): Change
	`define-ea-database' macro to side effect the variable
	`early-ea-database' rather than defining it.  Define this variable
	separately so that cref can see it.

1988-08-31 01:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/coerce.scm (1.10): Remove references to
	`define-coercion'.  Use explicit definition which will prevent cref
	from having undefined references.

1988-08-31 01:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/assmd.scm (1.35): Make sure that the
	constant parts of this file are integrated as constants in the rest
	of the compiler.

1988-08-31 01:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.12): Handle case where base
	address of an `offset' locative is a constant.

1988-08-30 04:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/Makefile (1.1): Initial revision

1988-08-29 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.22): Many changes to
	improve code at both RTL and LAP levels.  Major highlights:
	improved handling of continuations that are sometimes known;
	improved instruction combination algorithm; better register
	spilling in LAP generator; better handling of registers for fixnum
	operations.

1988-08-29 22:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcompr.scm (1.7): Teach how to combine stack
	references.

1988-08-29 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcompr.scm (1.6): Rewrite this pass to be a more
	powerful instruction combiner.	This is still not a general
	solution, but now it is smart about moving the value register and
	constant expressions over multiple instructions.

1988-08-29 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseht.scm (4.6): Redefine expression-cost
	computation to be mostly machine independent.

1988-08-29 19:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseep.scm (4.5): Flush `expression-non-object?'
	since that is now defined elsewhere.

1988-08-29 19:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse2.scm (4.10): Merge concepts of `address' and
	`fixnum' register into `non-object' register.

1988-08-29 19:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (4.8): Fix stupid bug involving
	missing call to `scfg*scfg->scfg!'.

1988-08-29 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.7): Must not pop return address
	unless it has been pushed.

1988-08-29 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlexp.scm (4.7): Merge concepts of `address'
	and `fixnum' register into `non-object' register.  Implement
	operations to detect substitutable register within a given
	expression, and to substitute subexpressions for those registers. 
	Implement predicate to determine if an expression is constant.	All
	of these new operations are used by the improved register combiner.
	
	Simplify `rtl:trivial-expression?' by disallowing stack references.
	 This causes some inefficiencies that must be corrected elsewhere,
	but reveals more intermediate values to the CSE.

1988-08-29 19:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/: rgraph.scm (4.3), rtlcon.scm (4.11),
	rtlreg.scm (4.4): Merge concepts of `address' and `fixnum' register
	into `non-object' register.

1988-08-29 18:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules4.scm (4.4): Change references to
	`coerce->any' into calls to `standard-register-reference'.

1988-08-29 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.10): Use
	`move-to-temporary-register!' to correctly reuse a data register
	for a particular rule.	Previously was doing something ad hoc.

1988-08-29 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules1.scm (4.14), rules2.scm (4.5):
	Many many changes.

1988-08-29 18:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.11): Define fixnum
	constant limits more carefully.  Redefine expression cost
	computation -- most is now machine-independent.  Change
	`address-register' concept to be `non-object-register'.  Delete
	`pseudo-register=?'.  Define `interpreter-value-register?'.

1988-08-29 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.11): Too many changes to
	list them all.	See the code.

1988-08-29 18:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm3.scm (4.6): Fix order of events
	bug in disassembly of bit field instructions.

1988-08-29 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.7): Change names of two state
	variables for `show-fg', because one of them conflicted with
	another variable in the compiler package.

1988-08-29 18:36  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.13): No change. made a mistake.

1988-08-29 18:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (4.5): Force register allocator to reuse
	registers on an LRU basis.  Previously it was somewhat random, and
	usually MRU.  Teach the allocator to spill values to registers of
	other types when allocating a register of a particular type.  This
	often wins grossly on the 68020.  Also implement predicates to
	determine whether particular aliases have unique values.

1988-08-29 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.8): Many changes.  Add documentation
	comments to most of the procedures in this file.  Improve
	functionality of existing procedures in a variety of ways, and add
	new procedures to implement new functionality.

1988-08-29 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (4.4): Break out procedure to pattern
	match RTL against rules database.  This procedure can be used as a
	predicate by the RTL optimizer to determine if particular
	instructions are valid.  In particular, this is used by the
	instruction combiner.

1988-08-26 19:00  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/version.scm (14.20): fix named let

1988-08-26 18:53  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.6): (let loop ((x loop)) x) worked when it
	shouldn't have.  has been fixed so that the name is not visible to
	the init forms.

1988-08-25 16:12  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules2.scm (4.4.1.1): Added rule for rtl
	predicate OVERFLOW-TEST, in support of generic arithmetic.

1988-08-25 16:06  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlexp.scm (4.6.1.1): Added
	rtl:expand-statement.

1988-08-25 15:48  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.10.1.1): Added Support for
	generic arithmetic in rtl:expression-cost.

1988-08-25 04:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (4.7.1.1): Change `object->address'
	and `object->type' to have arbitrary expressions as arguments,
	rather than just registers.  This is true in practice but the
	component names were misleading.
	
	Add new operation `object->unsigned-fixnum' for situations in which
	the object is known to be a nonnegative fixnum.  The generated code
	for this can be more efficient than for the signed case.

1988-08-25 02:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.12): Undo changes introduced with
	version 4.10, to facilitate parallel development.

1988-08-24 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.4): Guarantee that
	"comp.bcon" is constructed if it doesn't already exist.

1988-08-24 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.3): Load cref if not
	already loaded.

1988-08-24 12:29  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (4.9): Just forgot a few things for
	the rtl-constructor stuff.

1988-08-24 10:33  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.7): Added expand.scm in
	support of the new rtl expansion phase.

1988-08-24 02:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.sf (1.2): Guarantee that the
	".bin" version of each file is loaded.	Otherwise, an existing
	".com" could override the changes to a given file.

1988-08-23 12:34  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.7): Added support for a
	new expansion phase, which is essentially open coding done after
	common subexpression elimination.

1988-08-23 05:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/syerly.scm (1.6): Make error messages a bit more
	informative.

1988-08-22 18:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.6): Export
	`lap-generator/match-rtl-instruction' to (compiler) package so that
	it can be used by RTL optimizer.

1988-08-22 18:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.7.1.1): Define `*dead-registers*'
	here.

1988-08-22 18:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (4.3): Split off pattern matching part
	of LAP generator to allow it to be used by the RTL optimizer.  Move
	definition of `*dead-registers*' to another file.

1988-08-22 16:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.5): Fix documentation.

1988-08-22 16:33  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.10): Added support for the open
	coding of generic arithmetic.

1988-08-22 16:25  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.9): There's a new expansion phase to
	support the open coding of generic arithmetic. It is essentially
	there to allow for the open coding of rtl that you want to be
	treated as a single statement or expression by the common
	subexpression eliminator.

1988-08-22 16:20  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.6): The rtl constructor macros now
	place entries in a table that maps from rtl types to rtl
	contructors.

1988-08-22 16:10  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (4.8): Added support for the open
	coding of generic arithmetic.

1988-08-22 16:03  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.11): Made the vector stuff more
	robust (with some more open coded checks).  Added support for the
	open coding of generic arithmetic (the actual code for floating
	point is not yet there, although the hooks are).

1988-08-18 02:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.6): (return-operator/pop-frames)
	Must pop `extra' off stack in all cases.

1988-08-18 00:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgretn.scm (4.5): Random editing to clean up code
	a bit.	No change in functionality.

1988-08-17 23:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/conect.scm (4.3): Test to determine if a
	continuation is direct linked must be more sophisticated now that
	RTL generator is direct linking more kinds of continuations.

1988-08-17 22:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.10): Fix editing error.

1988-08-17 21:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.5): Export
	`syntax-files!' to the compiler package.

1988-08-17 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.21),
	rtlgen/rtlgen.scm (4.7): Improve code generated for inputs like the
	following:
	
	    (if (if (and (object-type? (ucode-type fixnum) r)
			 (object-type? (ucode-type fixnum) l))
		    (fix:> r l)
		    (> r l))
		...)
	
	Previously, the code generated for the call to `fix:>' was
	deficient in that it pushed a continuation, performed the inline
	coded comparison, then did a pop-return.  In fact, since the
	continuation is known at that point, and is not being passed
	anywhere, there's no reason to push anything on the stack.  These
	changes implement this.

1988-08-17 21:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/contin.scm (4.4), base/ctypes.scm (4.5),
	fggen/fggen.scm (4.9), fgopt/conect.scm (4.2), fgopt/offset.scm
	(4.4), fgopt/operan.scm (4.3), rtlgen/fndblk.scm (4.8),
	rtlgen/opncod.scm (4.10), rtlgen/rgretn.scm (4.4),
	rtlgen/rgstmt.scm (4.5), rtlgen/rtlgen.scm (4.6): Improve code
	generated for inputs like the following:
	
	    (if (if (and (object-type? (ucode-type fixnum) r)
			 (object-type? (ucode-type fixnum) l))
		    (fix:> r l)
		    (> r l))
		...)
	
	Previously, the code generated for the call to `fix:>' was
	deficient in that it pushed a continuation, performed the inline
	coded comparison, then did a pop-return.  In fact, since the
	continuation is known at that point, and is not being passed
	anywhere, there's no reason to push anything on the stack.  These
	changes implement this.

1988-08-16 14:10  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/version.h (10.50): Slight typo in &= definition fixed.

1988-08-16 13:49  Mark Friedman <markf@zurich.ai.mit.edu>

	* microcode/generic.c (9.28): Slight typo in &= definition fixed.

1988-08-15 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/extern.c (9.27): Update documentation strings.

1988-08-15 19:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/savres.scm (14.4): Cause `disk-save' to run
	`event:after-restart' when given #T as a second argument.

1988-08-15 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.19): Parameterize `pp' to print
	uninterned symbols by name.  Define
	`primitive-procedure-documentation'.

1988-08-15 17:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.7): Define
	`primitive-procedure-documentation'.

1988-08-15 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.4): Add parameterization to print uninterned
	symbols by name.

1988-08-15 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (10.49), winder.h (9.23), xdebug.c (9.24),
	zones.h (9.23): Change definition of `DEFINE_PRIMITIVE' macro to
	include extra fields for minimum number of arguments and
	documentation.	Add primitive to access the documentation string. 
	The min args slot is currently unused.	Change all definitions of
	primitives to use this macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-15 16:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: sdata.h (9.30), stack.h (9.26), step.c (9.25),
	storage.c (9.43), string.c (9.31), syntax.c (1.9), syntax.h (1.3),
	sysprim.c (9.30), trap.h (9.40), types.h (9.29), pruxfs.c (9.28),
	usrdef.h (9.37), utils.c (9.38), vector.c (9.31): Change definition
	of `DEFINE_PRIMITIVE' macro to include extra fields for minimum
	number of arguments and documentation.	Add primitive to access the
	documentation string.  The min args slot is currently unused. 
	Change all definitions of primitives to use this macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-15 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: missing.c (9.22), mul.c (9.24), object.h (9.29),
	prim.c (9.31), prim.h (9.40), prims.h (9.33), primutl.c (9.46),
	psbmap.h (9.27), purify.c (9.36), purutl.c (9.34), regex.c (1.7),
	regex.h (1.2), returns.h (9.33), rgxprim.c (1.7), sample.c (9.22),
	scheme.h (9.29), scode.h (9.23): Change definition of
	`DEFINE_PRIMITIVE' macro to include extra fields for minimum number
	of arguments and documentation.  Add primitive to access the
	documentation string.  The min args slot is currently unused. 
	Change all definitions of primitives to use this macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-15 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: history.h (9.24), hooks.c (9.32), hunk.c (9.25),
	image.c (9.27), image.h (9.22), intercom.c (9.25), intern.c (9.45),
	interp.c (9.45), interp.h (9.30), intrpt.h (1.4), list.c (9.26),
	load.c (9.27), locks.h (9.22), lookprm.c (1.2), lookup.c (9.40),
	memmag.c (9.35): Change definition of `DEFINE_PRIMITIVE' macro to
	include extra fields for minimum number of arguments and
	documentation.	Add primitive to access the documentation string. 
	The min args slot is currently unused.	Change all definitions of
	primitives to use this macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-15 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fasdump.c (9.40), fasl.h (9.29), fasload.c (9.37),
	fft.c (9.24), fhooks.c (9.28), fixnum.c (9.26), fixobj.h (9.26),
	flonum.c (9.25), future.c (9.26), futures.h (9.24), gc.h (9.26),
	gccode.h (9.39), gcloop.c (9.29), gctype.c (9.29), generic.c
	(9.27): Change definition of `DEFINE_PRIMITIVE' macro to include
	extra fields for minimum number of arguments and documentation. 
	Add primitive to access the documentation string.  The min args
	slot is currently unused.  Change all definitions of primitives to
	use this macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-15 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bltdef.h (1.2), boot.c (9.50), char.c (9.26),
	cmpint.h (10.2), comlin.c (1.4), comlin.h (1.2), comutl.c (1.13),
	config.h (9.38), const.h (9.29), daemon.c (9.26), debug.c (9.29),
	dmpwrld.c (9.27), dump.c (9.28), edwin.h (1.2), errors.h (9.31),
	extern.c (9.26), extern.h (9.30): Change definition of
	`DEFINE_PRIMITIVE' macro to include extra fields for minimum number
	of arguments and documentation.  Add primitive to access the
	documentation string.  The min args slot is currently unused. 
	Change all definitions of primitives to use this macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-15 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: array.c (9.33), array.h (9.28), bchdmp.c (9.43),
	bchgcc.h (9.33), bchgcl.c (9.34), bchmmg.c (9.42), bchpur.c (9.41),
	bignum.c (9.26), bignum.h (9.24), bitstr.c (9.38), bitstr.h (1.5),
	bkpt.c (9.22), bkpt.h (9.25): Change definition of
	`DEFINE_PRIMITIVE' macro to include extra fields for minimum number
	of arguments and documentation.  Add primitive to access the
	documentation string.  The min args slot is currently unused. 
	Change all definitions of primitives to use this macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-15 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: findprim.c (9.34), sgx.c (1.4), sgraph_a.c (1.5):
	Change definition of `DEFINE_PRIMITIVE' macro to include extra
	fields for minimum number of arguments and documentation.  Add
	primitive to access the documentation string.  The min args slot is
	currently unused.  Change all definitions of primitives to use this
	macro.
	
	The documentation strings should be filled in as time permits.
	
	Partially update "sample.c" to reflect this.  More work remains to
	be done.
	
	Update "Findprim.c" substantially, to handle these changes.  Also
	change all fixed size tables to be dynamically allocated.
	
	Define new macros `EMPTY_LIST', `SHARP_F' and `SHARP_T'.  All
	references to `TRUTH' replaced by `SHARP_T'.  Some references to
	`NIL' changed to the appropriate macro, but many more remain; these
	should be replaced as time permits.
	
	Update several copyright notices to reflect new year.
	
	Change name of "primitive.h" to "prims.h".

1988-08-11 16:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.20): Various bug
	fixes, also some efficiency improvements to the CSE.

1988-08-11 16:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.8): Be more specific about what kind
	of combination is considered to be an `error-combination'.

1988-08-11 16:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (4.11), rcse2.scm (4.9), rcseep.scm
	(4.4), rcseht.scm (4.5), rcserq.scm (4.3): Various efficiency and
	organization changes.  Eliminate `copy-cache' slot from `element'
	objects, reusing `cost' for that purpose during the copy phase.

1988-08-11 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.10): (assemble-objects!) Never use /
	when doing integer arithmetic.	Use quotient instead.

1988-08-10 23:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.18): Export `stack-frame/return-address'
	to global environment.

1988-08-10 23:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uerror.scm (14.5), version.scm (14.18): Implement
	compiled code reference trap errors.

1988-08-10 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/scode.scm (4.5): Do not barf if error combination
	is malformed.

1988-08-10 01:45  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.4): added halftoning routines: psam,
	ht-od, ht-bn, ht-ibn added image-laplacian,
	image-double-by-interpolation, write-image-2bint

1988-08-10 01:26  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/image.c (9.26): added halftoning routines: psam, ht-od,
	ht-bn, ht-ibn added image-laplacian, image-double-by-interpolation,
	write-image-2bint

1988-08-09 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/subst.scm (4.2): Do not perform automagic integrations by
	default.  This optimization caused a bug in the runtime system
	version 13.108 where event distributors ignored the internal
	`receivers' binding and used the empty list instead.

1988-08-09 15:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: default.h (9.30), version.h (10.48): Disable downward
	coercion of flonums.

1988-08-08 22:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dump.c (9.27): table_length and table_size are stored
	with Make_Non_Pointer, rather than Make_Pointer, since they are
	integers rather than pointers.

1988-08-05 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/toplev.scm (1.2): Change call to `pp' to match change in
	runtime system.

1988-08-05 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.17): Introduce new variable `unspecific'
	which the compiler may assume an arbitrary binding value for. 
	Replace nearly all occurrences of `*the-non-printing-object*' with
	this new variable.  Flush special handling for arguments to `error'
	special form, assuming that all code is syntaxed with the new
	syntaxer.

1988-08-05 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: global.scm (14.6), output.scm (14.4): Repaginate.

1988-08-05 16:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.7): Extend `->environment' to handle package
	objects.

1988-08-05 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unsyn.scm (14.3), where.scm (14.4): Replace occurrences
	of `*the-non-printing-object*' with `unspecific'.  Flush randomness
	dealing with old `error' macro, specifically because it referred to
	`*the-non-printing-object*'.

1988-08-05 16:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.2), dbgcmd.scm (14.3), error.scm (14.5),
	format.scm (14.4), gcnote.scm (14.3), global.scm (14.5), infutl.scm
	(1.3), list.scm (14.2), load.scm (14.4), output.scm (14.3),
	packag.scm (14.4), parse.scm (14.4), pp.scm (14.3), rep.scm (14.6),
	savres.scm (14.3), sfile.scm (14.2), syntax.scm (14.5), system.scm
	(14.4), uerror.scm (14.4): Replace occurrences of
	`*the-non-printing-object*' with `unspecific'.	Flush randomness
	dealing with old `error' macro, specifically because it referred to
	`*the-non-printing-object*'.

1988-08-05 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/boot.scm (14.2): Move `*the-non-printing-object*' to
	"global" since it isn't really needed at boot time.

1988-08-05 16:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (4.2), runtime/global.scm (14.4): Add variable
	`unspecific' which the compiler may treat as being bound to any
	convenient value.  This is used as the value of an expression when
	that expression's value is unused.

1988-08-05 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pp.scm (14.2): Regularize argument structure to `pp'. 
	Extend to handle hash number of object in addition to object
	itself.  Extend to print out components of named structures.

1988-08-05 11:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (4.4.1.1): Lexpr bug fix between 4.5
	and 4.6 incorporated to 4.4 for BBN (which is not going to 4.5
	yet).

1988-08-02 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.16): Change `procedure?' to handle
	entities specially, recursing on their invocation method.  Change
	`environment?' to be true of `system-global-environment'.  Add new
	procedures `ic-environment?' and `system-global-environment?' to
	distinguish the interesting cases.

1988-08-01 19:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.3), debug.scm (14.4), runtime.pkg
	(14.17), rep.scm (14.5), dbgutl.scm (14.3), where.scm (14.3),
	scode.scm (14.3): Change `environment?' to be true of
	`system-global-environment'.  Add new procedures `ic-environment?'
	and `system-global-environment?' to distinguish the interesting
	cases.

1988-08-01 19:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/udata.scm (14.4): Change `procedure?' to handle entities
	specially, recursing on their invocation method.

1988-07-22 18:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uerror.scm (14.3), version.scm (14.15): For "operator"
	microcode error handlers, the irritants were not being passed as a
	list, resulting in a different error being signalled whenever such
	an error occurred.

1988-07-21 14:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.37): Put default pathnames in file
	"paths.h".

1988-07-21 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.49), version.h (10.47): Put default
	pathnames in file "paths.h".

1988-07-20 03:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/order.scm (4.6): It is now legal for a
	continuation to have a noop node as its entry, provided that the
	noop node has no next.	If it is a noop node, connect to the next
	of the noop node rather than the entry of the continuation.

1988-07-20 03:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.pkg (1.4), decls.scm (4.6):
	Add new operation `sc' for running `sf' on compiler files.

1988-07-19 20:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/object.scm (4.3): Fix two bugs in the object
	unparsing code.

1988-07-19 20:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fggen/fggen.scm (4.7), machines/bobcat/make.scm-68040
	(4.19): Do not delete fg-noop nodes that are still needed.  In the
	following example, the entry node of the continuation passed to
	`bar' is needed because it is referenced by the subproblem object
	for the let:
	
	(let ((cos-total	(begin (bar)	      cos7)))	cos-total)

1988-07-19 16:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.16): Implement primitive
	`print-graphics-inverse'.

1988-07-19 16:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sgx.c (1.3): Grab X error hooks.  When errors occur,
	signal Scheme primitive errors rather than just terminating the
	process.

1988-07-19 14:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.3): Add imports for
	`compiler-entries-tag', which is defined by runtime system now.

1988-07-16 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.8): Procedure `condition/message'
	flushed.  Use `condition/report-string' in stead.

1988-07-16 17:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm1.scm (4.7): Procedure
	`primitive-datum' now called `object-datum'.

1988-07-16 16:54  Hal Abelson <hal@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (4.4): Fix stupid bug involving
	`standard-unparser'; it requires 2 arguments, the second is no
	longer optional.  Check for other occurrences of this.

1988-07-16 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (14.5), version.scm (14.14): When unparsing
	`manifest-closure' objects, use `compiled-procedure' as the type
	name.

1988-07-16 06:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.4): Fix stupid bug in `cond' syntaxer.

1988-07-16 05:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.15): Starbase graphics: export procedures
	to control line style and drawing mode.

1988-07-16 03:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: sgx.c (1.2), sgraph.h (1.4), version.h (10.46):
	Correctly implement closing of graphics device.  Make everyone
	close an open device before opening the next one.

1988-07-15 18:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.13): Adjust handling of `=>' option to
	`cond' special form so that it matches the definition in the
	standard.
	
	Change unparser to handle character sets specially.
	
	Implement octal ASCII escape sequences in strings, both for the
	parser and unparser.

1988-07-15 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (14.3): Change string parser to allow escape
	sequence consisting of one to three octal digits, which is
	translated into the ASCII equivalent.

1988-07-15 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.4): Change string unparser to notice
	character sets and unparse them specially.  Also notice non-graphic
	characters in strings and, when slashifying, unparse them using
	octal escape sequence.

1988-07-15 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/chrset.scm (14.3): Make `char-set?' more discriminating
	(previously it just looked for strings of a particular length). 
	Add `char-set:not-graphic' for use by unparser.

1988-07-15 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.14): Eliminate `syntaxer/cond-=>-helper'.
	 Add `char-set:not-graphic'.

1988-07-15 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (14.3): Change handling of `=>' option to
	`cond' special form so that it conforms to standard.  Eliminate
	`syntaxer/cond-=>-helper' in favor of using uninterned variable.

1988-07-15 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.46): Change `delayed' type name to be
	`promise'; make `delayed' be an alternate alias.

1988-07-15 05:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/option.scm (14.3): Purify option files as they are
	loaded.

1988-07-15 05:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sgx.c (1.1): Initial revision

1988-07-15 05:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: sgraph.h (1.3), sgraph_a.c (1.3), version.h (10.45):
	Add new file "SgX.c".  Upgrade Starbase graphics to support X
	windows (version 10).

1988-07-15 04:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: option.scm (14.2), runtime.pkg (14.13), version.scm
	(14.12): Add starbase graphics primitives as option package.

1988-07-14 03:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: debug.scm (14.3), error.scm (14.4), input.scm (14.3),
	load.scm (14.3), output.scm (14.2), packag.scm (14.3), rep.scm
	(14.4), runtime.pkg (14.12), version.scm (14.11), where.scm (14.2):
	Change the names of the `standard-repl-{environment,syntax-table}'
	operations to `nearest-repl/{environment,syntax-table}'.  Add new
	operations `{input,output}-port/operation'.

1988-07-13 16:09  Hal Abelson <hal@zurich.ai.mit.edu>

	* runtime/emacs.scm (14.2): Change paranoid error hook so that it
	aborts the error without giving the user any options.

1988-07-13 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: parse.scm (14.2), partab.scm (14.3), runtime.pkg
	(14.11), version.scm (14.10): Change `parser-table/set-entry!' to
	default its "collect-list" argument by wrapping its "parse-object"
	argument with `collect-list-wrapper'.

1988-07-11 19:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (14.2): Fix defaulting of `interval' argument
	in `char-ready?'.

1988-07-11 14:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.3): Make the default REPL value procedure
	write ";Value: " before the value, to make this more like the Emacs
	interface.

1988-07-09 23:35  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.32): array-search-value-tolerance-from

1988-07-09 07:20  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.h (9.27): modified the c_make_polar macro to
	return angle=0 for x,y=0,0 

1988-07-09 07:18  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.31): 1.array-make-polar returns angle=0 for
	x,y=0,0 2.added procs: array-accumulate, array-cons-reals,
	array-read-2bint-file

1988-07-08 22:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (14.2): Change default radix of
	`string->number' to decimal.

1988-07-07 22:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.44): Add new primitive to get memory
	usage statistics.  Change default size of constant space.

1988-07-07 22:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.29): Add new primitive to get memory usage
	statistics.

1988-07-07 14:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.36): Change default size of constant space.

1988-07-07 12:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.3): Change unparsing of compiled
	procedures and entries to more clearly indicate when the source
	file is shown.

1988-07-07 12:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.10), option.scm (14.1), make.scm
	(14.4), version.scm (14.9): Add option files and procedure
	`load-option' to load them.

1988-07-07 11:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/format.scm (14.3): Fix various bugs having to do with
	naming of low level output operations.

1988-07-07 11:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/format.scm (14.2): Eliminate "unreferenced bound
	variable" warnings.

1988-07-07 11:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/format.scm (14.1): Initial release for version 14.

1988-07-06 16:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/rep.scm (14.2): In `make-cmdl', change the point at which
	the cmdl continuation is saved so that aborting will disable
	interrupts again.

1988-06-30 18:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.8): Change the handling of the microcode
	version so that it is updated whenever the runtime system is
	restored.

1988-06-30 18:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: system.scm (14.3), runtime.pkg (14.9): Add procedures
	to modify the version and modification components of a system.

1988-06-29 04:05  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/version.h (10.43): Portable multiply function Mul() was
	broken because of lack of unsignedness and a fencepost error.

1988-06-29 04:01  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/mul.c (9.23): Portable multiply function Mul() was
	broken because of lack of unsignedness and a fencepost error.

1988-06-28 16:53  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.10): Procedure
	fixnum-constant didn't realize that maximum-positive-fixnum is one
	less than the absolute value of the least (negative) fixnum.

1988-06-22 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.8): Export `condition/internal?' (not
	`condition-type/internal?') from error handler package.

1988-06-22 17:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.pkg (14.7), conpar.scm (14.4), wind.scm (14.2),
	version.scm (14.7): Change the stack parser to ignore frames of
	type RESTORE-TO-STATE-POINT unless they contain a state point whose
	space is the system state space.

1988-06-22 17:09  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.6): Export compiler-info/symbol-table
	from info-package.

1988-06-22 16:51  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.5): No changes.  e

1988-06-21 01:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.3): [no log message]

1988-06-21 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.6): Variety of changes to condition
	system, to generalize error reporting mechanism.  Trivial change to
	continuation parser.

1988-06-21 01:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.4): Add new procedures:
	
		condition-type/internal?
		condition-type/reporter
		condition/report-string
		condition/reporter
		condition/write-report
	
	Change name of condition-type "dependencies" to "generalizations".

1988-06-21 01:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (14.2): `format-error-message' now takes a port
	as a third argument.

1988-06-21 01:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (14.2): Change error reporting mechanism so
	that condition types have an explicit reporting procedure.  This
	procedure receives the condition and an output port as arguments
	and can do anything it likes.
	
	New procedure `condition/internal?' is used to filter out
	complicated conditions.  If handlers always ignore conditions
	satisfying this predicate they will never have to do anything
	hairy.
	
	`format-error-message' now takes a port as a third argument.

1988-06-21 00:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/conpar.scm (14.3): Add `stack-frame/return-address'
	operation.  This will be more useful when the stack parser is
	generalized to handle compiled code frames.

1988-06-16 02:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/version.scm (14.5): Change to use new procedure
	`add-identification!'.

1988-06-16 02:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (14.2): Add procedure `add-identification!'
	which provides all the interesting functionality needed by most
	programs now.

1988-06-16 02:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scomb.scm (14.2): Increase the number of primitives that
	are constant folded.

1988-06-16 02:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.3): Move some items from () to other
	packages, then export them back to ().	Introduce some new stuff.

1988-06-16 02:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/make.scm (14.3): Add initialization for (runtime
	compiler-info).

1988-06-16 02:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (14.2): Comment out code for unused keyboard
	interrupts.

1988-06-16 02:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.2): Several bug fixes.

1988-06-16 02:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/global.scm (14.3): Move several definitions from here to
	more appropriate places.

1988-06-16 02:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: lambda.scm (14.2), scan.scm (14.2), scode.scm (14.2),
	syntax.scm (14.2): Flush occurrences of `make-named-tag'.

1988-06-16 02:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gdatab.scm (14.3): Change method of recording named
	structure descriptions to something that can be used at cold load
	time.

1988-06-16 02:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (14.2): Flush occurrences of `make-named-tag'.
	
	Change method of recording named structure descriptions to
	something that can be used at cold load time.

1988-06-15 16:47  Joe Marshall <jrm@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm1.scm (4.6): Changes to reflect
	changes in infutl

1988-06-15 16:40  Joe Marshall <jrm@zurich.ai.mit.edu>

	* compiler/machines/bobcat/compiler.pkg (1.2): Remove loading of
	base/infutl as it is now in the runtime system.

1988-06-15 14:35  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/unpars.scm (14.2): Change unparsing of compiled
	procedures to be more informative.

1988-06-15 14:24  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/runtime.pkg (14.2): Added compiler-info package.

1988-06-15 14:21  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/infutl.scm (1.1): Initial revision

1988-06-15 12:04  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/udata.scm (14.3): Add procedures
	DISCRIMINATE-COMPILED-ENTRY and 
	COMPILED-CODE-BLOCK/MANIFEST-CLOSURE?

1988-06-14 10:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (14.2): Do not unsyntax a `make-environment'
	special form unless the last action in its body is
	`the-environment'.

1988-06-14 06:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/make.scm (1.2): Always load compiled if possible.  Adjust
	version to agree with RCS version.

1988-06-14 06:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/forpkg.scm (1.2): Adjust formatting of package filenames.

1988-06-14 05:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/opncod.scm (4.9),
	machines/bobcat/make.scm-68040 (4.18): Merge in vector range
	checking.

1988-06-14 05:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.6): Merge in vector range checking.

1988-06-14 04:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: compiler.pkg (1.1), compiler.sf (1.1):
	Initial revision

1988-06-14 04:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.5): First checkin for
	runtime system version 14.

1988-06-14 04:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: assmd.scm (1.34), dassm1.scm (4.5),
	dassm2.scm (4.7), inerly.scm (1.5), insmac.scm (1.124), instr1.scm
	(1.66), instr3.scm (1.15), insutl.scm (1.6), lapgen.scm (4.9),
	machin.scm (4.10), make.scm-68040 (4.17), rules1.scm (4.13),
	rules2.scm (4.4), rules3.scm (4.9), rules4.scm (4.3): First checkin
	for runtime system version 14.

1988-06-14 04:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/fndblk.scm (4.7), rtlgen/opncod.scm (4.8),
	rtlgen/rgcomb.scm (4.5), rtlgen/rgretn.scm (4.3), rtlgen/rgrval.scm
	(4.7), rtlgen/rgstmt.scm (4.4), rtlgen/rtlgen.scm (4.5),
	rtlopt/ralloc.scm (1.15), rtlopt/rcse1.scm (4.10), rtlopt/rcse2.scm
	(4.8), rtlopt/rcseht.scm (4.4), rtlopt/rcserq.scm (4.2),
	rtlopt/rcompr.scm (1.5), rtlopt/rlife.scm (1.59): First checkin for
	runtime system version 14.

1988-06-14 04:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fgopt/offset.scm (4.3), fgopt/order.scm (4.5),
	fgopt/simapp.scm (4.3), fggen/canon.scm (1.2), fggen/fggen.scm
	(4.6), rtlbase/regset.scm (1.2), rtlbase/rtlcon.scm (4.9),
	rtlbase/rtline.scm (4.3), rtlbase/rtlobj.scm (4.3),
	rtlbase/rtlty2.scm (4.5): First checkin for runtime system version
	14.

1988-06-14 04:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: blocks.scm (4.3), contin.scm (4.3), ctypes.scm
	(4.3), debug.scm (4.6), enumer.scm (4.2), lvalue.scm (4.6),
	macros.scm (4.5), object.scm (4.2), pmerly.scm (1.7), pmlook.scm
	(1.6), pmpars.scm (1.3), proced.scm (4.5), rvalue.scm (4.3),
	scode.scm (4.4), subprb.scm (4.3), switch.scm (4.5), toplev.scm
	(4.7), utils.scm (4.5): First checkin for runtime system version
	14.

1988-06-14 04:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/: asmmac.scm (1.6), bittop.scm (1.9), lapgn1.scm
	(4.2), linear.scm (4.2), regmap.scm (4.4), syerly.scm (1.5),
	syntax.scm (1.21): First checkin for runtime version 14.

1988-06-13 09:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: version.scm (14.3), version.scm (14.4): [no log
	message]

1988-06-13 08:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* cref/: anfile.scm (1.1), conpkg.scm (1.1), forpkg.scm (1.1),
	make.scm (1.1), mset.scm (1.1), object.scm (1.1), redpkg.scm (1.1),
	toplev.scm (1.1), cref.pkg (1.1), cref.sf (1.1): Initial revision

1988-06-13 08:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: sf.pkg (4.1), sf.sf (4.1), butils.scm (4.1), cgen.scm (4.1),
	chtype.scm (4.1), copy.scm (4.1), emodel.scm (4.1), gconst.scm
	(4.1), gimprt.scm (4.1), lsets.scm (4.1), make.scm (4.5),
	object.scm (4.1), pardec.scm (4.1), pthmap.scm (4.1), reduct.scm
	(4.1), subst.scm (4.1), table.scm (4.1), toplev.scm (4.1),
	usicon.scm (4.1), usiexp.scm (4.1), xform.scm (4.1), free.scm
	(4.1), tables.scm (4.1): First checkin for runtime system version
	14.

1988-06-13 08:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: runtime.sf (14.1), runtime.pkg (14.1): First checkin
	for version 14.

1988-06-13 07:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: sysclk.scm (14.1), sysmac.scm (14.2), system.scm
	(14.1), udata.scm (14.2), uenvir.scm (14.2), uerror.scm (14.2),
	unpars.scm (14.1), unsyn.scm (14.1), unxdir.scm (14.2), unxpth.scm
	(14.1), urtrap.scm (14.2), utabs.scm (14.1), vector.scm (14.1),
	version.scm (14.2), where.scm (14.1), wind.scm (14.1), wrkdir.scm
	(14.2): First checkin for version 14.

1988-06-13 07:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: strout.scm (14.2), syntab.scm (14.2), syntax.scm
	(14.1): First checkin for version 14.

1988-06-13 07:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: packag.scm (14.2), parse.scm (14.1), partab.scm (14.2),
	pathnm.scm (14.1), poplat.scm (14.2), pp.scm (14.1), prop1d.scm
	(14.2), prop2d.scm (14.2), qsort.scm (14.1), queue.scm (14.2),
	random.scm (14.2), rep.scm (14.1), savres.scm (14.2), scan.scm
	(14.1), scode.scm (14.1), scomb.scm (14.1), sdata.scm (14.1),
	sfile.scm (14.1), stream.scm (14.1), string.scm (14.1), strnin.scm
	(14.2), strott.scm (14.2): First checkin for version 14.

1988-06-13 07:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: histry.scm (14.1), input.scm (14.1), intrpt.scm (14.1),
	io.scm (14.1), lambda.scm (14.1), lambdx.scm (14.2), list.scm
	(14.1), load.scm (14.2), make.scm (14.2), msort.scm (14.1),
	numpar.scm (14.1), output.scm (14.1): First checkin for version 14.

1988-06-13 07:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: contin.scm (14.2), cpoint.scm (14.2), datime.scm
	(14.1), dbgcmd.scm (14.2), dbgutl.scm (14.2), debug.scm (14.1),
	defstr.scm (14.1), emacs.scm (14.1), equals.scm (14.1), error.scm
	(14.1), events.scm (14.1), framex.scm (14.2), gc.scm (14.1),
	gcdemn.scm (14.2), gcnote.scm (14.2), gcstat.scm (14.1), gdatab.scm
	(14.2), gensym.scm (14.1), global.scm (14.2), hash.scm (14.1):
	First checkin for version 14.

1988-06-13 07:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (14.1), bitstr.scm (14.1), boole.scm (14.2),
	boot.scm (14.1), char.scm (14.1), chrset.scm (14.2), codwlk.scm
	(14.2), conpar.scm (14.2): First checkin for version 14.

1988-06-13 06:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/wrkdir.scm (14.1): [no log message]

1988-06-13 06:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: version.scm (14.1), packag.scm (14.1), unxdir.scm
	(14.1): [no log message]

1988-06-13 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.7.1.3): Typo.

1988-06-13 01:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.7.1.2): (range-check): Handle case
	where `error-finish' is false.	This is true for primitives whose
	continuation is 'EFFECT.

1988-06-13 01:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.4.1.2): By default, disable range
	checking on vector operations.

1988-06-10 03:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.42): Fix nasty bug in tty interrupt code.
	 The symptom of the bug was: typing ^G while the microcode was in
	`TYI_Immediate' caused the next read from the tty to get EOF;
	subsequently Scheme signalled TERM_EOF.  The problem was that there
	was local storage in `TYI_Immediate', which contained trash after
	the interrupt performed a `longjmp' back into the procedure. 
	According to the definition of `setjmp', it is illegal to depend on
	such local storage.  We are unlucky in that only a little bit of
	the local storage was affected so it took a long time to notice
	this problem.
	
	This was fixed by introducing a fluid-binding mechanism to allocate
	and deallocate local state.  There may be a problem with the
	interaction between `longjmp' and this mechanism.  If we `longjmp'
	past the deallocation routine the world will be messed up.

1988-06-09 17:02  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.16.1.1): Open coding
	of vector range checks

1988-06-09 13:43  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/base/switch.scm (4.4.1.1): A new switch
	(compiler:generate-range-checks?) controls whether open-coding of
	vector operations includes range checking on the index.

1988-06-09 13:41  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.7.1.1): Open coding of vector-set!
	and vector-ref now includes range checking on the index.

1988-06-08 12:10  Joe Marshall <jrm@zurich.ai.mit.edu>

	* microcode/version.h (10.41): Fix to bitstr.c

1988-06-08 12:05  Joe Marshall <jrm@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.37): Attempt to fix one path through copy
	bits.  I think this works, but I make no claims about understanding
	why.

1988-06-04 20:59  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/version.h (10.40): Added complex number arithmetic (no
	trancendentals).

1988-06-04 20:54  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/generic.c (9.26): Added complex number arithmetic (no
	trancendentals).

1988-06-04 19:23  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/sdata.h (9.29): Added complex number abstraction.

1988-06-03 19:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.9): (cse/assign) Notice pops from
	stack and adjust stack pointer accordingly.  Can't understand why
	this wasn't noticed before.

1988-06-03 11:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.16): Variety of bug
	fixes.	Also revert this file so that the names exported from the
	compiler package are put directly in the global environment,
	instead of the environment into which the file is loaded.

1988-06-03 10:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseht.scm (4.3): (hash-table-insert!) If `hash'
	is false, do not link the resulting element into a hash bucket --
	just save it in the value chain.

1988-06-03 10:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse2.scm (4.7): (invalidate-memory-destination!)
	Optimize this -- if both class and hash are not given, don't bother
	to insert the element in the hash table, because it will have no
	useful effect.

1988-06-03 10:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.8): (assignment-memory-insertion) Do
	not perform CSE on the memory address.	Doing that causes problems
	because the memory address cannot be distinguished from a reference
	to that address.  The RTL should be fixed so that these things are
	distinguished, and then we can re-enable memory address CSE.

1988-06-03 10:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (4.3): (add-pseudo-register-alias)
	Delete the alias from the register map first.  This prevents the
	map from having two entries for the same alias, one of which is
	incorrect.

1988-06-03 10:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.5): Change `compiler:write-rtl-file'
	to do defaulting of file type differently, and to allow an optional
	output file argument.

1988-05-28 00:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.12): Add new rule.

1988-05-19 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: uenvir.scm (14.1), uerror.scm (14.1), urtrap.scm
	(14.1): [no log message]

1988-05-19 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: random.scm (14.1), savres.scm (14.1), strnin.scm
	(14.1), strott.scm (14.1), strout.scm (14.1), syntab.scm (14.1),
	sysmac.scm (14.1), udata.scm (14.1): [no log message]

1988-05-19 20:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: gcnote.scm (14.1), gdatab.scm (14.1), global.scm
	(14.1), lambdx.scm (14.1), load.scm (14.1), make.scm (14.1),
	partab.scm (14.1), poplat.scm (14.1), prop1d.scm (14.1), prop2d.scm
	(14.1), queue.scm (14.1): [no log message]

1988-05-19 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: contin.scm (14.1), cpoint.scm (14.1), dbgcmd.scm
	(14.1), dbgutl.scm (14.1), framex.scm (14.1), gcdemn.scm (14.1):
	[no log message]

1988-05-19 20:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: boole.scm (14.1), chrset.scm (14.1), codwlk.scm (14.1),
	conpar.scm (14.1): [no log message]

1988-05-19 14:37  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.8): Oops. Small bug with
	fixnum additions and subtractions of constants.

1988-05-19 11:39  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.15): open coded
	vector-ref and vector-set! for non-constant indices.

1988-05-19 11:32  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.9): Added expression cost
	for FIXNUM->OBJECT.  Subtracted the boxing cost for the fixnum
	operations because we now do the boxing explicitly via
	FIXNUM->OBJECT.

1988-05-19 11:29  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.7): Fixed code for fixnum
	operations involving constants.  Multiplication by a power of 2
	becomes a shift.  If the fixnum operation is commutative and
	involves a constant, better code may be generated by swaping the
	order of the operands. This is now done.

1988-05-19 11:26  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.11): Added support for
	FIXNUM->OBJECT rtl type.  Removed the implicit boxing of fixnum
	operations because it is now done explicitly by FIXNUM->OBJECT.

1988-05-19 11:20  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/: rtlexp.scm (4.6), rtlty1.scm (4.7), rtlcon.scm
	(4.8): Added an explicit FIXNUM->OBJECT rtl type for eventual
	support for reusing the unboxed results of fixnum operations

1988-05-19 11:10  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.7): Open coded vector-ref and
	vector-set! with non-constant indices.	No index range checking
	yet.  Commented out code for open codinf of system-... functions
	with side effects. These were causing an esoteric GC problem.

1988-05-18 21:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm2.scm (4.6): Fix bug in
	INTERPRETER-REGISTER.  It now checks whether the offset is a known
	offset directly, and if not, it tries the aligned version instead. 
	The bug was noticed because interpreter entries are 6 bytes long,
	so only half of them are aligned, and the others were not found.

1988-05-17 12:57  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.10): Character Stuff.

1988-05-14 12:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm3.scm (4.5): Disassembler changes:
	
	- Fix unbound variable bugs in the disassembler.  - Fix
	symbolic/numeric register bug.	- Fix bug backing out of undefined
	instructions.  - Make bad 68020 extended forms back out instead of
	causing errors.  - Add handlers for 68020 32/64 bit multiplication
	and division.

1988-05-14 12:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: make.scm-68040 (4.14), dassm2.scm
	(4.5): Disassembler changes:
	
	- Fix unbound variable bugs in the disassembler.  - Fix
	symbolic/numeric register bug.	- Fix bug backing out of undefined
	instructions.  - Make bad 68020 extended forms back out instead of
	causing errors.  - Add handlers for 68020 32/64 bit multiplication
	and division.

1988-05-12 23:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prename.h (1.2): Add aliases for `object-new-type' and
	`primitive-object-new-type'.

1988-05-12 18:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/purify.c (9.35): Conditionalize phase error test so
	that it is ignored if FLOATING_ALIGNMENT is defined.  This will
	eventually be fixed correctly.

1988-05-11 13:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prim.c (9.30), version.h (10.39): Bugs:
	`object-gc-type' was using `MAKE_UNSIGNED_FIXNUM' to compute its
	result when in fact the result was signed.  `object-set-type' was
	going to `Microcode_Termination' when its first argument was an
	unknown type code, rather than signalling a bad-range error.

1988-05-11 00:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/reduct.scm (1.1): Initial revision

1988-05-11 00:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: make.scm (4.4), pardec.scm (3.8), subst.scm (3.10),
	usiexp.scm (3.8): Add a REDUCE-OPERATOR declaration so that users
	can get the same functionality as the system already provides for
	+, -, list, etc.
	
	Shorten some of the warning messages.

1988-05-10 15:53  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm2.scm (4.4), dassm3.scm (4.4):
	Added knowledge of byte/char operations

1988-05-10 14:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.38): Change type check on first argument
	to `dump-band' to include all applicable types.
	
	Change definitions of SMALLEST_FIXNUM and BIGGEST_FIXNUM to have
	explicit casts to long type.  Previously this was automatically
	true but ANSI C forces such constants to be unsigned long instead.

1988-05-10 14:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fasdump.c (9.39): Change type check on first argument
	to `dump-band' to include all applicable types.

1988-05-10 13:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/object.h (9.28): Change definitions of SMALLEST_FIXNUM
	and BIGGEST_FIXNUM to have explicit casts to long type.  Previously
	this was automatically true but ANSI C forces such constants to be
	unsigned long instead.

1988-05-10 11:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.31), fhooks.c (9.27), version.h (10.37):
	Move `get-fluid-bindings' and `set-fluid-bindings!' into the normal
	microcode.  This allows the new runtime system to have the hooks
	for fluid-bindings even if they aren't in use.

1988-05-09 20:38  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.9): CHAR/STRING
	open-coding, bug fix

1988-05-09 20:10  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.8): CHAR/STRING
	open-coding, bug fix

1988-05-09 16:01  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.13): CHAR/STRING
	open-coding

1988-05-09 15:57  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (4.7): Added string/char
	open-coding.

1988-05-09 15:52  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlcon.scm (4.7), rtlgen/opncod.scm (4.6),
	rtlopt/rcse2.scm (4.6), rtlopt/rcseep.scm (4.3): Added string/char
	open-coding.

1988-05-09 15:48  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/machin.scm (4.8),
	machines/bobcat/lapgen.scm (4.6), rtlbase/rtlty1.scm (4.6),
	rtlbase/rtlty2.scm (4.4), rtlbase/rtlexp.scm (4.5): Added
	string/char open-coding.

1988-05-06 08:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (13.52): Default `load-noisily?' to false. 
	People seem to prefer this.

1988-05-06 05:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.40): Update `primitive-purify' to new
	interface.  Forgot to do this one when the regular version was
	updated.

1988-05-05 05:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.35): Eliminate random escape from string.
	 Rename variable `string' to `str' because `string' is a typedef. 
	HP compiler works but this is illegal combination.

1988-05-05 05:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/array.c (9.30): Illegal to take address of a variable
	that has been declared `register'.  HP's compiler never complained
	by GCC does.

1988-05-05 04:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: purify.c (9.34), interp.c (9.44): Change interface of
	`primitive-purify' to take an extra argument, `safety-margin'
	(which works like the argument to `garbage-collect'), and returns
	an extra value (which is like the value of `garbage-collect'). 
	These changes will allow purify to be used instead of gc when
	desired.

1988-05-05 04:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gc.scm (13.44), microcode/version.h (10.36): Change
	interface of `primitive-purify' to take an extra argument,
	`safety-margin' (which works like the argument to
	`garbage-collect'), and returns an extra value (which is like the
	value of `garbage-collect').  These changes will allow purify to be
	used instead of gc when desired.

1988-05-04 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.48): 1) Change -compiler to default
	parameters, so that they can be overriden with -band, -heap, etc.
	
	2) Add double MC68881 code in hand-coded generic arithmetic for use
	by compiled code.

1988-05-04 15:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.35): 1) Change -compiler to default
	parameters, so that they can be overriden with -band, -heap, etc.
	
	2) Add double MC68881 code in hand-coded generic arithmetic for use
	by compiled code.

1988-05-04 00:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.35): Increment COMPILER_CONSTANT_SIZE and
	COMPILER_HEAP_SIZE.

1988-05-03 17:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookprm.c (1.1): Initial revision

1988-05-03 15:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: lookup.h (9.40), version.h (10.34): Implement
	environment-link-name.
	
	Split lookup.c into lookup.c and lookprm.c which contains the
	primitive procedures to invoke the lookup code.

1988-05-03 15:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.39): Implement environment-link-name.
	
	Split lookup.c into lookup.c and lookprm.c which contains the
	primitive procedures to invoke the lookup code.

1988-05-03 15:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: boot.scm (13.46), error.scm (13.51): Fix paranoia bug
	in list.scm (map, map*, and for-each were not paranoid enough).
	
	Add error handlers for environment-link-name.

1988-05-03 14:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/list.scm (13.43): Fix paranoia bug in list.scm (map,
	map*, and for-each were not paranoid enough).
	
	Add error handlers for environment-link-name.

1988-05-03 12:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.45): Restore bad-assignment error for
	environment-link-name.

1988-05-02 21:09  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.7): Added information on
	FIXNUM size.

1988-05-02 21:04  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.5): Fixed bug with
	FIXNUM-CONSTANT not sign-extending.

1988-05-02 20:35  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.6): Added information on
	FIXNUM size.

1988-05-02 19:53  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.5): Added information on
	FIXNUM size.

1988-04-29 11:04  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.12): OOPS. Last
	version had a missinbg paren.

1988-04-29 10:55  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.11): Added support for
	open coding of fixnum arithmetic and predicates.

1988-04-27 14:26  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/char.c (9.25): Removed default mapping between ascii
	and mit-ascii.

1988-04-27 14:24  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* runtime/char.scm (13.43): Fixed position of meta bit, added ASCII
	names.

1988-04-27 00:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fhooks.c (9.26): deep_lookup was being called with an
	extraneous fourth argument.

1988-04-26 23:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.10): Fix a bug in
	local lexprs.

1988-04-26 21:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.33): Fix a bug in local lexprs.

1988-04-26 21:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/returns.h (9.32): Remove RC_REPEAT_DISPATCH.

1988-04-26 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: rep.scm (13.44), input.scm (13.51): Change `load' to
	interact better with Emacs interface.  Dissect REP loop slightly to
	allow its parts to be used independently by `load'.  Now whenever
	`load' prints a value it is also entered in the REP printer
	history.  Also, the value of the last file loaded is returned to
	the REP loop as the value of the `load' expression.
	
	All of this is useful for allowing Emacs to use `load' for zapping.
	 Now, zapping from a file is more or less equivalent to zapping
	through a pipe.  Before, there were significant differences,
	especially noticeable in interaction with the printer history.

1988-04-26 14:56  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlopt/rcompr.scm (1.4): Added a new test in
	optimize-rtl called rtl:optimizable? Currently it is only used to
	prevent the optimization of OBJECT->FIXNUM. This is done to prevent
	an explosion in the number of rules necessary in the back end. See
	the commant in optimize-rtl for more info.

1988-04-26 14:52  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.7): Added cse methods for
	FIXNUM-PRED-2-ARGS and FIXNUM-PRED-1-ARG.  This is in support of
	binary and unary open coded fixnum predicates.

1988-04-26 14:48  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse2.scm (4.5): Added fixnums to
	non-object-invalidate. Someday we may not  need to do this. We may
	be able to keep these guys around.  See the log message for
	rtlbase/rtlcon.scm 4.6 for some more info.

1988-04-26 14:33  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.6): Support added for the
	generation of rtl for open coded fixnum  arithmetic and predicates.
	 NOTE: Someday, when we have some support for the persistance of
	untyped objects (i.e. when we have some way of saving unboxed 
	fixnums across GC calls) we can do some fancier things such as
	eliminating the boxing of a fixnum calculation which is just going 
	to be unboxed and used in another fixnum calculation. My idea for
	doing this is to add an explicit FIXNUM->OBJECT rtl expression and
	when OBJECT->FIXNUM is simplified and its operand is FIXNUM->OBJECT
	then cancel them out and return the operand of the FIXNUM->OBJECT. 
	The result of an fixnum expression expression will then have to be
	considered an RTL:FIXNUM-VALUED-EXPRESSION? and
	OBJECT-NON-INVALIDATE will have to be updated.

1988-04-25 17:44  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/: rtlexp.scm (4.4), rtlreg.scm (4.3): Added a
	FIXNUM type of register analagous to ADDRESS registers.  Their
	current use is to hold the results of OBJECT->FIXNUM expressions
	and assignments of such registers to other registers. We have to
	tell the cse code that such registers and expressions are invalid
	across anything that can call the garbage collector. This is
	because the  garbage collector would currently barf on such values
	that have no type codes (i.e. fixnums which have had their type
	codes removed).  In the future, FIXNUM registers may contain the
	reults of fixnum arithmetic expressions, so that we are not doing
	so much boxing and unboxing. Currently however, all such results
	are boxed into their destinations.

1988-04-25 17:34  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rgraph.scm (4.2): Added a FIXNUM type of
	register analagous to ADDRESS registers.  Their current use is to
	hold the results of OBJECT->FIXNUM expressions and assignments of
	such registers to other registers. We have to tell the cse code
	that such registers and expressions are invalid across anything
	that can call the garbage collector. This is because the  garbage
	collector would currently barf on such values that have no type
	codes (i.e. fixnums which have had their type codes removed).  In
	the future, FIXNUM registers may contain the reults of fixnum
	arithmetic expressions, so that we are not doing so much boxing and
	unboxing. Currently however, all such results are boxed into their
	destinations.

1988-04-25 17:27  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (4.5): Added the following RTL types
	for the support of fixnum operations:	 FIXNUM-2-ARGS - for binary
	fixnum arithmetic operations	FIXNUM-1-ARG  - for unary fixnum
	arithmetic operations	 FIXNUM-PRED-2-ARGS - for binary fixnum
	predicates    FIXNUM-PRED-1-ARG  - for unary fixnum-predicates	 
	OBJECT->FIXNUM - for unboxing fixnum objects

1988-04-25 13:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/comlin.c (1.3): Rename variable `string' to `str'; it
	conflicts with a typedef of the same name.  Change character
	constant '\=' to '='; former is undefined escape sequence.

1988-04-25 13:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.34): Fix typo.

1988-04-25 11:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fasl.h (9.28): Change conditionalization of `__GNU__'
	to `__GNUC__'.	Fix bug in `flush_input_buffer()' on USG systems:
	argument is `int', not `int *'.  Change file I/O to unbuffered; tty
	I/O remains buffered using stdio.  Opening fasl output file now
	deletes existing file first.

1988-04-24 06:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/default.h (9.29): Remove random parens from end of
	#ifndef statements.

1988-04-23 08:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.8): Add missing rule.

1988-04-23 04:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/xform.scm (3.8): Move all `integrate-external' declarations
	into the files, using relative pathnames.

1988-04-23 04:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: cgen.scm (3.6), chtype.scm (1.3), copy.scm (3.8), emodel.scm
	(3.5), free.scm (3.4), pardec.scm (3.7), subst.scm (3.9),
	tables.scm (3.3), toplev.scm (3.11), usicon.scm (3.4), usiexp.scm
	(3.7): Move all `integrate-external' declarations into the files,
	using relative pathnames.

1988-04-23 04:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: toplev.scm (3.10), make.scm (4.3): Bind
	`sf/default-externs-pathname' to same directory as input file when
	syntaxing a file.  This is correct default for relative filenames
	that appear in a file's declarations.

1988-04-22 12:39  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.5): Added support for the open
	coding of fixnum arithmetic and fixnum predicates.

1988-04-22 12:32  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr2.scm (1.15): Fixed the MULS MULU
	DIVS and DIVU instructions; the operands were reversed.  NOTE: The
	dissassembler totally screws up on these instructions.

1988-04-22 12:28  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.4): Added expression costs
	for fixnum expressions. These costs are pretty rough. Someone who
	really understands the 68020 book should check them out.

1988-04-22 12:23  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (4.4): Added support for the
	open coding of fixnum arithmetic and fixnum predicates.

1988-04-22 12:20  Mark Friedman <markf@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules1.scm (4.6), rules2.scm (4.3):
	Added rules to support open coding of fixnum arithmetic.

1988-04-21 02:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (4.6): Fix a bug in "local lexprs". 
	The arity encoding must include the procedure object, even if it is
	only a virtual procedure object.

1988-04-15 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.32): Release 6.2.1

1988-04-15 12:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gccode.h (9.38): Do not refer to `Scan' in
	`GC_NO_COMPILER_STMT', as it isn't defined in all places that the
	macro is used.

1988-04-15 12:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gccode.h (9.37): Fix compiled-code stubs to cast their
	value to some appropriate type.  Flush references to `To' since
	fasload does not define that variable.

1988-04-14 22:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm3.scm (4.3): Change the way first
	class environments are handled.  There is an extra phase at the
	front end which translates implicit environment manipulation
	operations into explicit ones.

1988-04-14 22:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm1.scm (4.4), make.scm-68040
	(4.9): Change the way first class environments are handled.  There
	is an extra phase at the front end which translates implicit
	environment manipulation operations into explicit ones.

1988-04-14 22:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/debug.scm (4.4), machines/bobcat/decls.scm (4.4),
	base/infnew.scm (4.2), base/lvalue.scm (4.5), base/proced.scm
	(4.4), base/scode.scm (4.3), base/switch.scm (4.4), base/toplev.scm
	(4.6), base/utils.scm (4.4): Change the way first class
	environments are handled.  There is an extra phase at the front end
	which translates implicit environment manipulation operations into
	explicit ones.

1988-04-14 22:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/canon.scm (1.1): Initial revision

1988-04-14 22:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlgen/rgrval.scm (4.5), rtlgen/rgproc.scm (4.3),
	fgopt/closan.scm (4.3), fgopt/blktyp.scm (4.4), fggen/fggen.scm
	(4.5): Change the way first class environments are handled.  There
	is an extra phase at the front end which translates implicit
	environment manipulation operations into explicit ones.

1988-04-12 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/ralloc.scm (1.14): Signal error if the number of
	temporary registers allocated exceeds the number available for this
	machine.

1988-04-12 14:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.3.1.1): Add
	number-of-temporary-registers.

1988-04-12 10:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/boot.scm (13.45), sf/gconst.scm (3.7): Remove
	with-threaded-continuation and add copy-program.

1988-04-06 14:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/closan.scm (4.2.1.1): Fix bug in closure-limit
	computation by simplifying closure limit to trivial analysis. 
	Later we will want to restore the full computation by improving the
	closure invocation code.  See the notes in this file for details.

1988-04-06 13:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/debug.scm (4.3): Update `show-rtl-instruction' to
	know about new RTL statement types.

1988-04-03 14:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasdump.c (9.38), version.h (10.31): Fix bug backing
	out of fasdump when an environment object is encountered.

1988-04-01 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.7): Fix bug introduced in
	last change.

1988-03-31 16:39  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/rtlgen/fndblk.scm (4.6): Trap trivial closures with
	error in `find-variable-internal'.

1988-03-31 16:35  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/rtlgen/opncod.scm (4.4): Add case to
	`subproblem->expression' for trivial closure consing.

1988-03-31 16:23  Joe Marshall <jrm@zurich.ai.mit.edu>

	* microcode/string.c (9.30): allocate_string was allocating a word
	too many.

1988-03-30 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (3.9): Change time reports to match compiler.

1988-03-30 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (3.8): Change time reports to match compiler.

1988-03-30 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: toplev.scm (3.7), make.scm (4.2): Change time reports to
	match compiler.

1988-03-25 16:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/rules1.scm (4.5),
	machines/bobcat/lapgen.scm (4.3), machines/bobcat/rules3.scm (4.6),
	back/lapgn2.scm (1.7), machines/bobcat/make.scm-68040 (4.8): Add
	missing rule.  Generalize `increment-anl' to
	`increment-machine-register'.  Generalize
	`reuse-pseudo-register-alias!' to capture idea of reuse without
	making assumptions about loading the target register from the
	source register.

1988-03-25 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: xform.scm (3.7), make.scm (4.1): Really get these things
	working.

1988-03-25 15:36  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.6): Fixed direction of branch
	in rule.  It was backwards.

1988-03-24 02:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.44): * Delete
	`with-threaded-continuation' primitive.
	
	* Implement `get-interrupt-enables' primitive.
	
	* Split `primitive-type' and friends into two classes: one which is
	gc-safe and touches arguments, the other non-safe with no touching.
	
	* Implement primitive-procedure name aliasing in microcode.  This
	allows microcode name changes to reuse existing bands.
	
	* Do not use "-q" ld switch.  This causes lossage when Scheme is
	loaded over NFS.

1988-03-24 02:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.47), hooks.c (9.30), prim.c (9.29),
	primutl.c (9.45), version.h (10.30): * Delete
	`with-threaded-continuation' primitive.
	
	* Implement `get-interrupt-enables' primitive.
	
	* Split `primitive-type' and friends into two classes: one which is
	gc-safe and touches arguments, the other non-safe with no touching.
	
	* Implement primitive-procedure name aliasing in microcode.  This
	allows microcode name changes to reuse existing bands.
	
	* Do not use "-q" ld switch.  This causes lossage when Scheme is
	loaded over NFS.

1988-03-24 02:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prename.h (1.1): Initial revision

1988-03-23 13:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.43): Add some overflow checking in entity
	apply code.  It will not work in fscheme/multischeme, but figuring
	out what the right thing to do there is not easy.

1988-03-23 13:31  Joe Marshall <jrm@zurich.ai.mit.edu>

	* microcode/interp.c (9.42): Make Entity application check for
	interrupts to avoid blowing machine away in the case of an entity's
	procedure being that entity.  This will allow you to abort if you
	are quick enough, but no stack check is currently being done, so
	errors here would probably blow scheme away anyhow.

1988-03-22 16:10  Joe Marshall <jrm@zurich.ai.mit.edu>

	* sf/subst.scm (3.8): Preserve the order of arguments in a let
	statement.

1988-03-22 13:10  Joe Marshall <jrm@zurich.ai.mit.edu>

	* sf/lsets.scm (1.2): Make set/adjoin not cons so much.

1988-03-22 12:38  Joe Marshall <jrm@zurich.ai.mit.edu>

	* sf/: pardec.scm (3.6), pthmap.scm (1.2), subst.scm (3.7),
	tables.scm (3.2), toplev.scm (3.6), usicon.scm (3.3), usiexp.scm
	(3.6), xform.scm (3.6): automagic-integrations

1988-03-22 12:37  Joe Marshall <jrm@zurich.ai.mit.edu>

	* sf/: lsets.scm (1.1), table.scm (1.1): Initial revision

1988-03-22 12:35  Joe Marshall <jrm@zurich.ai.mit.edu>

	* sf/: cgen.scm (3.5), chtype.scm (1.2), copy.scm (3.7), emodel.scm
	(3.4), free.scm (3.3), gconst.scm (3.6), make.scm (3.16),
	object.scm (3.2): automagic-integrations

1988-03-21 16:47  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules2.scm (4.2): Had the right rule
	header, but wrong body.

1988-03-21 16:46  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules1.scm (4.4): Fixed more bugs.

1988-03-21 16:45  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.5): fixed more bugs

1988-03-21 16:42  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm2.scm (4.5): Fixed bug in offset
	symbols

1988-03-21 16:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.12), fasdump.c (9.37), fasload.c (9.36),
	gccode.h (9.36), gcloop.c (9.28), purify.c (9.33), version.h
	(10.29): Fix bchscheme to handle new representation of compiled
	procedures.  Add coerce-to-compiled-procedure primitive for inner
	loops.	Clean up some gc macros.

1988-03-21 16:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.42), bchgcc.h (9.32), bchgcl.c (9.33),
	bchmmg.c (9.41), bchpur.c (9.39): Fix bchscheme to handle new
	representation of compiled procedures.	Add
	coerce-to-compiled-procedure primitive for inner loops.  Clean up
	some gc macros.

1988-03-14 16:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlbase/: rtlcon.scm (4.5), rtlexp.scm (4.3), rtlty1.scm
	(4.4), rtlty2.scm (4.3): Change the representation of compiled
	procedures and other entries: They are now just the address of an
	instruction with a gc offset preceding the instruction and an
	arity/type word preceding that.  Compiled closures are done by
	creating a tiny fake compiled code block which jumps to the right
	place and sets up the free variables for reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 15:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (4.6), rcse2.scm (4.4): Change the
	representation of compiled procedures and other entries: They are
	now just the address of an instruction with a gc offset preceding
	the instruction and an arity/type word preceding that.	Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgrval.scm (4.4), rgstmt.scm (4.3), rtlgen.scm
	(4.4): Change the representation of compiled procedures and other
	entries: They are now just the address of an instruction with a gc
	offset preceding the instruction and an arity/type word preceding
	that.  Compiled closures are done by creating a tiny fake compiled
	code block which jumps to the right place and sets up the free
	variables for reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 15:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: fgopt/blktyp.scm (4.3), fgopt/order.scm (4.4),
	rtlgen/fndblk.scm (4.5), rtlgen/rgcomb.scm (4.4), rtlgen/rgproc.scm
	(4.2): Change the representation of compiled procedures and other
	entries: They are now just the address of an instruction with a gc
	offset preceding the instruction and an arity/type word preceding
	that.  Compiled closures are done by creating a tiny fake compiled
	code block which jumps to the right place and sets up the free
	variables for reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 15:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.4): Change the representation of
	compiled procedures and other entries: They are now just the
	address of an instruction with a gc offset preceding the
	instruction and an arity/type word preceding that.  Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 15:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/: lapgn2.scm (1.6), lapgn3.scm (4.2), regmap.scm
	(4.2): Change the representation of compiled procedures and other
	entries: They are now just the address of an instruction with a gc
	offset preceding the instruction and an arity/type word preceding
	that.  Compiled closures are done by creating a tiny fake compiled
	code block which jumps to the right place and sets up the free
	variables for reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 15:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/decls.scm (4.3), base/lvalue.scm
	(4.4), base/proced.scm (4.3), base/switch.scm (4.3),
	base/toplev.scm (4.5), base/utils.scm (4.3): Change the
	representation of compiled procedures and other entries: They are
	now just the address of an instruction with a gc offset preceding
	the instruction and an arity/type word preceding that.	Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 15:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules4.scm (4.2): Change the
	representation of compiled procedures and other entries: They are
	now just the address of an instruction with a gc offset preceding
	the instruction and an arity/type word preceding that.	Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	Incorporate JRM's fix to signal to close interrupt gap in hp-ux.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 14:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: machin.scm (4.3), make.scm-68040
	(4.7), rules1.scm (4.4), rules3.scm (4.5): Change the
	representation of compiled procedures and other entries: They are
	now just the address of an instruction with a gc offset preceding
	the instruction and an arity/type word preceding that.	Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	Incorporate JRM's fix to signal to close interrupt gap in hp-ux.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 14:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm1.scm (4.3), dassm2.scm (4.3),
	instr2.scm (1.14), lapgen.scm (4.2): Change the representation of
	compiled procedures and other entries: They are now just the
	address of an instruction with a gc offset preceding the
	instruction and an arity/type word preceding that.  Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	Incorporate JRM's fix to signal to close interrupt gap in hp-ux.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-14 11:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: unpars.scm (13.54), utabs.scm (13.48): Change the
	representation of compiled procedures and other entries: They are
	now just the address of an instruction with a gc offset preceding
	the instruction and an arity/type word preceding that.	Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	Incorporate JRM's fix to signal to close interrupt gap in hp-ux.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-13 10:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/interp.c (9.41): Forgot to add macro continuation lines
	to Apply_Error.

1988-03-12 11:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: purify.c (9.32), purutl.c (9.33), returns.h (9.31),
	types.h (9.28), utabmd.scm (9.43), utils.c (9.37), version.h
	(10.28): Change the representation of compiled procedures and other
	entries: They are now just the address of an instruction with a gc
	offset preceding the instruction and an arity/type word preceding
	that.  Compiled closures are done by creating a tiny fake compiled
	code block which jumps to the right place and sets up the free
	variables for reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	Incorporate JRM's fix to signal to close interrupt gap in hp-ux.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-12 11:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: comlin.c (1.2), comutl.c (1.11), const.h (9.28),
	errors.h (9.30), fasdump.c (9.36), fasload.c (9.35), gccode.h
	(9.35), gcloop.c (9.27), gctype.c (9.28), interp.c (9.40): Change
	the representation of compiled procedures and other entries: They
	are now just the address of an instruction with a gc offset
	preceding the instruction and an arity/type word preceding that. 
	Compiled closures are done by creating a tiny fake compiled code
	block which jumps to the right place and sets up the free variables
	for reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	Incorporate JRM's fix to signal to close interrupt gap in hp-ux.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-12 10:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.34), psbtobin.c (9.33): Change the
	representation of compiled procedures and other entries: They are
	now just the address of an instruction with a gc offset preceding
	the instruction and an arity/type word preceding that.	Compiled
	closures are done by creating a tiny fake compiled code block which
	jumps to the right place and sets up the free variables for
	reference.
	
	Uuo style links are now just jump instructions to the correct
	address.  All relocators have been updated to reflect this change.
	
	Variable caches have no type code. The relocators know about this.
	
	Incorporate JRM's fix to signal to close interrupt gap in hp-ux.
	
	New types: TC_COMPILED_ENTRY TC_MANIFEST_CLOSURE TC_LINKAGE_SECTION

1988-03-10 21:54  Arthur Gleckler <arthur@zurich.ai.mit.edu>

	* microcode/sgraph.h (1.2): Fixed screen dimensions by reducing
	STARBASE_XMAX and STARBASE_YMAX each by one.

1988-03-08 13:24  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/make.scm (4.3): Updated make file to
	include "CF" command and match 68020 version.

1988-03-08 13:22  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm2.scm (4.4): More bug fixes, dealing
	with word sizes and such.

1988-03-07 17:17  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/machin.scm (4.4): Added costs for
	ASSIGNMENT-CACHE and VARIABLE-CACHE.

1988-03-04 19:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (13.44): Fix weird bugs involving dot notation
	in lists.  Unfortunately, the fix fails to catch a class of error
	cases, namely
	
	(1 . . (2)) (1 . . . ((2))) etc.
	
	Also install a switch to disable the feature of ignoring random
	close parens from the console.

1988-03-02 04:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.27): Implement two new primitives,
	`file-directory?' and `file-symlink?'.	Change `file-attributes' to
	use `lstat' rather than `stat', and to return more information
	about symbolic links.

1988-02-28 20:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.27): Reimplement unix I/O using buffered
	stdio instead of unbuffered low-level I/O.  The latter had bad
	performance on TTYs and possibly other devices as well.

1988-02-28 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: toplev.scm (3.5), make.scm (3.15): Add new operation
	`sf/set-default-syntax-table!'.

1988-02-26 13:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.26): Reimplement `read' and `write'
	primitives to do retries in the case of interrupts or premature
	completion.

1988-02-23 14:47  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.4): Fixed bugs in dynamic
	link references (going to wrong register and the like).

1988-02-23 14:45  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules1.scm (4.3): Added appropriate rules
	for dynamic links

1988-02-23 14:43  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rgspcm.scm (4.1): Initial check-in for LIAR
	version 4...

1988-02-23 14:39  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/make.scm (4.2): Updated make to include
	disassembler-syntaxed instruction files.

1988-02-23 14:37  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/machin.scm (4.3): Changed cost on
	(OBJECT->ADDRESS OBJECT->DATUM)

1988-02-23 14:34  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/insutl.scm (4.1): Initial check-in for LIAR
	4.4...

1988-02-23 14:29  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/decls.scm (4.2): Fixed dependencies.

1988-02-23 13:18  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/assmd.scm (4.4): [no log message]

1988-02-22 17:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.25): Fix bug in
	compiler_interrupt_procedure.
	
	It was clobbering the dlink register, and this lost when gc was
	disabled (and the gc interrupt ignored).

1988-02-21 13:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: system.scm (13.52), intrpt.scm (13.48): DISK-SAVE now
	returns false when dumped and true when restored.
	
	the suspension interrupt handler uses this to exit after dumping
	but not after restoring.

1988-02-21 12:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.24): SIGHUP causes suspension only when
	running in the forground.
	
	SIGUSR1 causes suspension always.

1988-02-20 14:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.40), boot.c (9.46), memmag.c (9.34): 1)
	Patch compiler code interface problem: Dynamic links were not saved
	when a procedure was interrupted.  The typical symptoms would be
	that the program would jump to an unpredictable location after a
	garbage collection.  This could cause it do die with almost any
	signal, typically illegal instruction and segmentation violation.
	
	2) Add a gc counter for debugging purposes.

1988-02-20 14:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.23): 1) Patch compiler code interface
	problem: Dynamic links were not saved when a procedure was
	interrupted.  The typical symptoms would be that the program would
	jump to an unpredictable location after a garbage collection.  This
	could cause it do die with almost any signal, typically illegal
	instruction and segmentation violation.
	
	2) Add a gc counter for debugging purposes.

1988-02-20 01:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: purify.c (9.31), version.h (10.22): - Add code and
	data patch areas to cmp68020.s - Clean up the display of interrupt
	character information in unix.c - Change the interrupt characters
	in unix.c so it matches the sequences used in emacs.  - Add a
	gc_death utility procedure which saves scan and free.

1988-02-20 01:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.41), bchgcc.h (9.31), bchgcl.c (9.32),
	bchpur.c (9.38), boot.c (9.45), fasdump.c (9.35), gccode.h (9.34),
	gcloop.c (9.26), interp.c (9.39): - Add code and data patch areas
	to cmp68020.s - Clean up the display of interrupt character
	information in unix.c - Change the interrupt characters in unix.c
	so it matches the sequences used in emacs.  - Add a gc_death
	utility procedure which saves scan and free.

1988-02-19 15:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.4): Fix a bug in the continuation
	analyzer which was causing the compiler to avoid static links in
	cases where they were in fact needed.
	
	Add a few missing code generation rules.
	
	Make the compiler print its phase information in a nicer format.
	
	Add a few top level utilities:
	
	- cf (SFs your file first)
	
	- compiler:batch-compile (not exported).  In case of error it
	prints the error information and aborts the current compilation,
	thus when compiling multiple files (ie. compiling the compiler) it
	will continue with the next one.

1988-02-19 15:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.6), base/toplev.scm
	(4.4), back/bittop.scm (1.8), machines/bobcat/rules1.scm (4.3),
	machines/bobcat/rules3.scm (4.4): Fix a bug in the continuation
	analyzer which was causing the compiler to avoid static links in
	cases where they were in fact needed.
	
	Add a few missing code generation rules.
	
	Make the compiler print its phase information in a nicer format.
	
	Add a few top level utilities:
	
	- cf (SFs your file first)
	
	- compiler:batch-compile (not exported).  In case of error it
	prints the error information and aborts the current compilation,
	thus when compiling multiple files (ie. compiling the compiler) it
	will continue with the next one.

1988-02-18 11:46  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/unsyn.scm (13.49): [no log message]

1988-02-17 14:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.5): 1) Make assembler pad with
	ILLEGAL instructions.  2) Make the continuations for special
	primitive invocations not do a heap/interrupt check.

1988-02-17 14:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (4.5),
	machines/bobcat/rules3.scm (4.3), machines/bobcat/assmd.scm (1.33),
	back/bittop.scm (1.7), rtlgen/rtlgen.scm (4.3), rtlbase/rtlty1.scm
	(4.3): 1) Make assembler pad with ILLEGAL instructions.  2) Make
	the continuations for special primitive invocations not do a
	heap/interrupt check.

1988-02-14 15:16  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.h (9.26): macro-improvements: macro local
	variables

1988-02-13 19:41  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.29): array-aperiodic-downsample dropped last
	element on odd lengths, fixed.

1988-02-12 14:40  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.5): Removed reference to
	frame pointer

1988-02-12 11:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: storage.c (9.42), types.h (9.27), pruxfs.c (9.26),
	utabmd.scm (9.42), version.h (10.21): 1) Fix allocation bug in
	FILE-ATTRIBUTES.  2) Make some error messages nicer.  3) Add ENTITY
	and RATNUM types.  4) Add apply time support for ENTITYs.  5) Add a
	type code name table to types.h and storage.c .  6) Clean up some
	code in debug.c and Ppband.c .

1988-02-12 11:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.32), bchdmp.c (9.40), bchgcl.c (9.31),
	bchpur.c (9.37), debug.c (9.28), fasdump.c (9.34), gccode.h (9.33),
	gcloop.c (9.25), gctype.c (9.27), interp.c (9.38), purify.c (9.30),
	sdata.h (9.28): 1) Fix allocation bug in FILE-ATTRIBUTES.  2) Make
	some error messages nicer.  3) Add ENTITY and RATNUM types.  4) Add
	apply time support for ENTITYs.  5) Add a type code name table to
	types.h and storage.c .  6) Clean up some code in debug.c and
	Ppband.c .

1988-02-11 16:11  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/: machin.scm (4.2), dassm2.scm (4.3):
	Changed frame-pointer (which is no longer used) to dynamic-link
	(which is)

1988-02-11 14:25  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules1.scm (4.2): Added ASSIGNMENT-CACHE
	rule (it was missing)

1988-02-10 12:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/error.scm (13.50): Add new fasload and fasdump errors
	from the microcode.  Make load-band (disk-restore) report some
	errors reasonably.

1988-02-10 11:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: comlin.h (1.1), comlin.c (1.1): Initial revision

1988-02-10 10:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.33), ppband.c (9.31), psbtobin.c
	(9.32), fasload.c (9.34), load.c (9.26), psbmap.h (9.26): 1) Update
	Psbtobin, Bintopsb, and Ppband to take care of compiled code
	versions.  2) Make Psbtobin and Bintopsb use a new programmable
	command line parser.

1988-02-09 23:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasl.h (9.27): Add conditionalization for load
	parameters.

1988-02-06 15:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: gccode.h (9.32), load.c (9.25), returns.h (9.30),
	storage.c (9.41), utabmd.scm (9.41), version.h (10.20): 1. Fix bug
	in relocation of entries into the compiler utilities version.
	
	2. Up the fasl version number.	New format includes processor type,
	compiled code interface version and band/"file" flag.
	
	3. Fasdump complains when dumping an environment.
	
	4. Error code names and various other items have been moved to
	errors.h

1988-02-06 15:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.30), bchdmp.c (9.39), boot.c (9.44),
	config.h (9.34), const.h (9.27), dump.c (9.26), errors.h (9.29),
	fasdump.c (9.33), fasl.h (9.26), fasload.c (9.33): 1. Fix bug in
	relocation of entries into the compiler utilities version.
	
	2. Up the fasl version number.	New format includes processor type,
	compiled code interface version and band/"file" flag.
	
	3. Fasdump complains when dumping an environment.
	
	4. Error code names and various other items have been moved to
	errors.h

1988-01-22 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (4.4):
	`rtl:make-interpreter-call:cache-unassigned?' was defined with the
	wrong number of arguments.

1988-01-18 13:39  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm3.scm (1.2): [no log message]

1988-01-15 15:14  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.4): Fixed entry points in
	calls to CCI routines

1988-01-15 15:13  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/dassm2.scm (4.2): Fixed entry points in
	calls to CCI routines.

1988-01-13 14:29  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.3): Popper code removed,
	comment added noting this

1988-01-13 14:26  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/lapgen.scm (4.2): [no log message]

1988-01-12 11:38  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.3): Fixed
	INVOCATION:PRIMITIVE and others

1988-01-12 11:33  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/assmd.scm (4.3): Fixed bug in
	instruction-insert!

1988-01-11 15:29  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/decls.scm (4.1): Initial check-in for
	version 4 compiler

1988-01-11 14:56  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/decls.scm (1.1): Initial revision

1988-01-10 05:38  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.28): extended array-unary-function to do
	array-quantize (round, truncate)

1988-01-08 09:55  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/assmd.scm (4.2): Initial check-in for
	version 4 compiler

1988-01-08 08:04  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/assmd.scm (1.1): Initial revision

1988-01-07 18:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/etc/stackp.scm (1.1): Initial revision

1988-01-07 16:35  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.27): trivia c_array_complex_multiply

1988-01-07 16:32  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/fft.c (9.23): added array-czt (chirp-z-transform) added
	array-hanning (windowing) fixed DFT definition to agree with
	Seibert

1988-01-07 16:14  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/: machin.scm (4.1), dassm1.scm (4.1),
	dassm2.scm (4.1): Initial check-in for version 4 compiler

1988-01-07 16:07  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/machin.scm (1.1): Initial revision

1988-01-07 14:17  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.h (9.25): added macro complex-multiply

1988-01-07 11:47  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/: dassm1.scm (1.1), dassm2.scm (1.1),
	dassm3.scm (1.1): Initial revision

1988-01-06 17:28  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.2): Fixed some bugs...

1988-01-06 13:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (4.2): Must use ".bin" files
	rather than ".scm" files when enumerating filenames, because the
	".scm" files may not be present when loading the compiler.

1988-01-06 12:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.4): Move "direct.scm"
	into the etc subdirectory.

1988-01-05 17:25  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules4.scm (4.1): Initial check-in for
	version 4 compiler

1988-01-05 17:24  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules4.scm (1.0): Initial revision

1988-01-05 16:19  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (4.1): Initial check-in for
	version 4 of compiler

1988-01-05 11:07  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/rules3.scm (1.0): Initial revision

1988-01-05 10:57  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/: lapgen.scm (4.1), rules1.scm (4.1),
	rules2.scm (4.1): Initial check-in for compiler version 4

1988-01-05 10:57  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/: lapgen.scm (1.0), rules1.scm (1.0),
	rules2.scm (1.0): Initial revision

1988-01-05 10:54  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/make.scm (4.1): Initial check-in for
	version 4 of compiler

1988-01-05 10:53  Brian A. LaMacchia <bal@zurich.ai.mit.edu>

	* compiler/machines/vax/make.scm (1.0): Initial revision

1988-01-04 17:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.19): Fold several FASL types into one so
	that we can transfer compiled code and other binary files between
	different machines with 68000 family processors.

1988-01-04 16:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.33): Fold several FASL types into one so
	that we can transfer compiled code and other binary files between
	different machines with 68000 family processors.

1988-01-04 13:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.32): Don't forget to set `compiled_p'
	flag when compiled code is found.

1988-01-04 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.31): Add changes to allow compiled code
	to appear in PSB files.

1988-01-04 08:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/contan.scm (4.3): Static link analysis for
	reduction case was not exacting enough.  Must take into account the
	case where the places being reduced from are invoked with different
	continuations.

1988-01-02 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/dassm3.scm (4.2): Fix bugs where
	immediate data and effective address were being read in the wrong
	order.

1988-01-02 14:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/fndblk.scm (4.4): Fix bug -- locating closing
	block of closure whose parent is IC block.

1988-01-02 12:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (4.3): Fix bug in invocation/lookup --
	missing fetch.

1988-01-02 11:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/offset.scm (4.2): Fix bug in codewalk -- was not
	looking at `procedure-values'.

1988-01-02 10:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/fggen.scm (4.3): Change generation of `delay'
	objects to use new format of promises understood by the microcode. 
	The compiled code directly generates a promise object, which
	contains a compiled procedure of no arguments.	The microcode
	invokes this procedure to generate the result.

1988-01-02 10:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/hooks.c (9.29): Changes to `force' primitive to support
	compiled `delay'.  Bug fixes to "regex.c" from JRM.

1988-01-02 09:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules3.scm (1.18.1.1), make.scm-68040
	(1.46.1.3): Bug fixes to lexpr primitive calling sequence.

1988-01-02 09:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/where.scm (13.44): Change definitions and names of
	operations on objects whose type is `delayed'.	Old name for such
	objects was `delayed-evaluation', new name is `promise'.  The
	microcode has been extended to allow a new kind of `promise',
	distinguished by a fixnum zero in its car, whose cdr is a procedure
	of no arguments which is applied to get the value.  This is used to
	support compiled promises.

1988-01-02 09:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.18): Changes to `force' primitive to
	support compiled `delay'.  Bug fixes to "regex.c" from JRM.

1987-12-31 13:51  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.h (9.24): Changed the name of local variable in
	loop macros to avoid conflict/shadowing of other variables.  "i"
	----> "mcrindx".

1987-12-31 05:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (4.4): Change macros because of
	randomness in scode-optimizer.

1987-12-31 05:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules2.scm (4.2): Add missing rule for
	type-test of offset memory location.

1987-12-31 05:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: macros.scm (4.3), cfg1.scm (4.3), lvalue.scm
	(4.3), rvalue.scm (4.2): Change particular constructors from
	procedures to macros so we can inline code them as calls to
	`vector', rather than as lexpr primitives which call
	`list->vector'.

1987-12-31 03:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/fndblk.scm (4.3), rtlgen/opncod.scm (4.3),
	rtlbase/rtlcon.scm (4.3), rtlbase/rtlexp.scm (4.2),
	rtlbase/rtlty2.scm (4.2), machines/bobcat/rules1.scm (4.2),
	fgopt/order.scm (4.3): Implement open coding of `vector' primitive.
	 Change primitive open coding so that arguments which are known
	constants or references to known locations do not use intermediate
	registers if possible.

1987-12-31 02:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcseep.scm (4.2), rcse2.scm (4.3), rcse1.scm
	(4.4): Change treatment of interpreter memory registers so that
	they do not cause invalidation of random memory addresses.  No
	other pointers will ever point into that address block.

1987-12-31 00:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm1.scm (4.2), dassm2.scm (4.2):
	Change symbol table representation for disassembler so that it can
	find multiple symbols with the same offset and print them.  Also
	needed to find when one of the symbols is external but not all of
	them.

1987-12-31 00:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (4.3): Must invalidate memory for all
	assignments.  Was losing in case where destination of assignment
	was non-volatile and source was volatile.

1987-12-30 16:43  Joe Marshall <jrm@zurich.ai.mit.edu>

	* microcode/regex.c (1.6): re_compile_fastmap 1) regexpcode_exact_n
	grabbed wrong character (wrong index) 2) regexpcode_any_char fell
	into next case (no goto)
	
	RE_SEARCH_FORWARD_FAST	Conditional backward
	
	RE_SEARCH_BACKWARD_FAST 	Conditional backward

1987-12-30 05:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (4.2): Fix stupid bugs
	relating to invocation of lexpr primitives.

1987-12-30 04:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (4.3): The procedure's name is not a
	variable, just a symbol now.

1987-12-30 04:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/toplev.scm (4.3): *ic-procedure-headers* needs to
	associate with external labels, not internal ones.

1987-12-30 03:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.3): Split alpha
	subdirectory into fggen and fgopt.

1987-12-30 03:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (4.2): Move butils to etc
	subdirectory.

1987-12-30 02:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (4.2), rcse2.scm (4.2), rcseht.scm
	(4.2): Final check-in for version 4.1 of compiler.

1987-12-30 02:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: fndblk.scm (4.2), opncod.scm (4.2), rgcomb.scm
	(4.2), rgretn.scm (4.2), rgrval.scm (4.2), rgstmt.scm (4.2),
	rtlgen.scm (4.2): Final check-in for version 4.1 of compiler.

1987-12-30 02:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/rules3.scm (4.1),
	machines/bobcat/rules4.scm (4.1), rtlbase/rtlcfg.scm (4.2),
	rtlbase/rtlcon.scm (4.2), rtlbase/rtline.scm (4.2),
	rtlbase/rtlobj.scm (4.2), rtlbase/rtlreg.scm (4.2),
	rtlbase/rtlty1.scm (4.2): Final check-in for version 4.1 of
	compiler.

1987-12-30 02:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (4.1), dassm1.scm (4.1),
	dassm2.scm (4.1), dassm3.scm (4.1), lapgen.scm (4.1), machin.scm
	(4.2), make.scm-68040 (4.1), rgspcm.scm (4.1), rules1.scm (4.1),
	rules2.scm (4.1): Final check-in for version 4.1 of compiler.

1987-12-30 01:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: proced.scm (4.2), scode.scm (4.2), subprb.scm
	(4.2), switch.scm (4.2): Final check-in for version 4.1 of
	compiler.

1987-12-30 01:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/infnew.scm (4.1), base/toplev.scm (4.2),
	base/utils.scm (4.2), back/linear.scm (4.1), base/blocks.scm (4.2),
	base/cfg1.scm (4.2), base/cfg2.scm (4.2), base/cfg3.scm (4.1),
	base/contin.scm (4.2), base/ctypes.scm (4.2), base/debug.scm (4.2),
	base/lvalue.scm (4.2), base/macros.scm (4.2): Final check-in for
	version 4.1 of compiler.

1987-12-30 01:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/: insseq.scm (4.1), lapgn1.scm (4.1), lapgn3.scm
	(4.1), regmap.scm (4.1): Final check-in for version 4.1 of
	compiler.

1987-12-30 01:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/: conect.scm (4.1), offset.scm (4.1): Final
	check-in for version 4.1 of compiler.

1987-12-30 01:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fggen/fggen.scm (4.2), fgopt/blktyp.scm (4.2),
	fgopt/closan.scm (4.2), fgopt/contan.scm (4.2), fgopt/folcon.scm
	(4.2), fgopt/operan.scm (4.2), fgopt/order.scm (4.2),
	fgopt/outer.scm (4.3), fgopt/simapp.scm (4.2), fgopt/simple.scm
	(4.2): Final check-in for version 4.1 of compiler.

1987-12-22 23:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/findprim.c (9.33): Implement `LEXPR' primitive arity,
	which translates to `-1'.

1987-12-22 23:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: usiexp.scm (3.5), make.scm (3.14): Implement `vector' as
	primitive.

1987-12-22 23:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/vector.scm (13.45), sf/gconst.scm (3.5): Implement
	`vector' as primitive.

1987-12-22 22:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/vector.c (9.30): Implement `vector' primitive.

1987-12-22 22:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.17): Implement `vector' primitive.  Add
	some machinery to facilitate definition of other lexpr primitives.

1987-12-22 22:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prims.h (9.32): Implement more argument macros. 
	Implement two new macros, `ARG_LOC' and `LEXPR_N_ARGUMENTS', to
	facilitate writing lexpr primitives.

1987-12-22 22:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.h (9.29): Implement more powerful operations for
	manipulating stack locatives.  These are useful for writing lexpr
	primitives.

1987-12-18 12:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.46.1.2): If a
	predicate is known not to take one of its branches, do not generate
	code for that branch.  This prevents generation of dead code, which
	subsequently screws up the compiler in later phases, due to the
	existence of continuations which are never referenced.

1987-12-18 12:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.20.1.1): If a predicate is known
	not to take one of its branches, do not generate code for that
	branch.  This prevents generation of dead code, which subsequently
	screws up the compiler in later phases, due to the existence of
	continuations which are never referenced.

1987-12-17 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (10.16), pruxfs.c (9.25): Alter
	`OS_tty_read_char' under unix so that it echoes the input if the
	standard input is a file.

1987-12-17 15:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (13.43), sf/gconst.scm (3.4): Define
	`string-hash-mod' in the global environment.

1987-12-16 23:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/vector.c (9.29): Typo in `subvector_move_prefix'.

1987-12-16 14:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.15): Fix several bugs in "vector.c" found
	by Morry Katz, mostly having to do with indices not being checked
	to eliminate negative numbers.	Reorganize and update all of the
	code.

1987-12-16 14:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/vector.c (9.28): Fix several bugs found by Morry Katz,
	mostly having to do with indices not being checked to eliminate
	negative numbers.  Reorganize and update all of the code.

1987-12-15 11:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.14): Make `arg_channel' be a public
	function per request of AAB.

1987-12-13 19:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.13), runtime/sysclk.scm (13.42): Change
	`System_Clock' to `OS_process_clock', scaling in milliseconds
	instead of centiseconds.  Implement `real-time-clock' primitive. 
	Implement "suspension" feature which generates special interrupt. 
	This feature is activated by SIGHUP.

1987-12-13 19:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.28), runtime/intrpt.scm (13.47): Change
	`System_Clock' to `OS_process_clock', scaling in milliseconds
	instead of centiseconds.  Implement `real-time-clock' primitive. 
	Implement "suspension" feature which generates special interrupt. 
	This feature is activated by SIGHUP.

1987-12-13 17:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.40): Update this to match microcode.

1987-12-13 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intrpt.h (1.3): Add new interrupt code which means that
	the interpreter was requested to exit by some external source.

1987-12-13 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: errors.h (9.28), storage.c (9.40): Add new
	termination code which means that the interpreter was requested to
	exit by some external source.

1987-12-13 16:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: extern.h (9.29), default.h (9.28): Change
	`System_Clock' to `OS_process_clock', scaling in milliseconds
	instead of centiseconds.

1987-12-12 19:12  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.26): fixed histogram

1987-12-12 17:06  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.25): Added array-read-ascii-file,
	array-write-ascii-file Removed array-log! (covered by
	array-unary-function!).

1987-12-12 14:13  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/fft.c (9.22): [no log message]

1987-12-11 11:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (1.7): Fix mistaken bug fix of last revision.

1987-12-10 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (1.6): The type object being constructed for
	named structures of type LIST was incorrect.

1987-12-09 17:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (10.12), comutl.c (1.10): Add the
	STACK-TOP-ADDRESS primitive to comutl.c for use by the compiled
	code debugger.

1987-12-09 17:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/debug.scm (13.46): Typo.

1987-12-09 16:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/debug.scm (13.45): Add hooks for the compiled code
	debugger.

1987-12-09 16:37  Joe Marshall <jrm@zurich.ai.mit.edu>

	* microcode/rgxprim.c (1.6): Fix RE-CHAR-SET-ADJOIN! to have
	arg_ascii_integer.

1987-12-09 01:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.36): Fix bug in purify
	
	Under some circumstances (prob = 1/512) a bufferfull was lost
	between the pure copy and the constant copy, because the header
	overflowed the free buffer, and the free buffer dumping code
	assumed that the buffer would be dumped when scan was dumped, but
	scan was reinitialized immediately.

1987-12-08 19:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.46.1.1): 1) Update the
	list of unsafe primitives to match the microcode.  2) Install JRM's
	changes to the debugging information code for use by the debugger.

1987-12-08 19:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.92.1.1): Update the list of unsafe
	primitives to match the microcode.

1987-12-08 09:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (1.5): Implement error message for
	unrecognized slot options.

1987-12-08 08:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (4.1), rcse2.scm (4.1), rcserq.scm
	(4.1), rcseht.scm (4.1), rcseep.scm (4.1), rcsesr.scm (4.1): Major
	redesign of front end of compiler.  Continuations are now modeled
	more exactly by means of a CPS-style analysis.	Poppers have been
	flushed in favor of dynamic links, and optimizations have been
	added that eliminate the use of static and dynamic links in many
	cases.

1987-12-07 23:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (13.44.1.1): Changes to make Emacs control-g
	synchronization code compatible with BSD and ptys.

1987-12-07 23:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.2.1.2), runtime/emacs.scm (13.47.1.1):
	Changes to make Emacs control-g synchronization code compatible
	with BSD and ptys.

1987-12-05 11:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: emacs.scm (13.50), rep.scm (13.43), debug.scm (13.44),
	where.scm (13.43): Change Emacs interface to have special mode for
	`debug' and `where'.

1987-12-04 17:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: step.c (9.24), storage.c (9.39), utils.c (9.36),
	version.h (10.11): Some changes to make calling primitives from
	compiled code cheaper:
	
	- Primitives back out in the interpreter, rather than directly.  -
	A table with the arity in bytes has been added to usrdef.c -
	Primitive objects have two fields: a table index for invocation,
	and a virtual number for bookkeeping purposes.	The table index is
	always valid, even for unimplemented primitives.  In this case it
	points to a procedure which causes an UNIMPLEMENTE-PRIMITIVE error
	when invoked.  The back out mechanism takes care 

1987-12-04 17:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.32), futures.h (9.23), gc.h (9.25),
	intercom.c (9.24), interp.c (9.37), interp.h (9.28), memmag.c
	(9.33), object.h (9.27), prim.h (9.39), prims.h (9.31), primutl.c
	(9.44): Some changes to make calling primitives from compiled code
	cheaper:
	
	- Primitives back out in the interpreter, rather than directly.  -
	A table with the arity in bytes has been added to usrdef.c -
	Primitive objects have two fields: a table index for invocation,
	and a virtual number for bookkeeping purposes.	The table index is
	always valid, even for unimplemented primitives.  In this case it
	points to a procedure which causes an UNIMPLEMENTE-PRIMITIVE error
	when invoked.  The back out mechanism takes care 

1987-12-04 17:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: findprim.c (9.32), bchdmp.c (9.38), bchmmg.c (9.39),
	bkpt.h (9.24), boot.c (9.43), const.h (9.26), debug.c (9.27),
	dmpwrld.c (9.26), errors.h (9.27), extern.c (9.25), fasdump.c
	(9.32): Some changes to make calling primitives from compiled code
	cheaper:
	
	- Primitives back out in the interpreter, rather than directly.  -
	A table with the arity in bytes has been added to usrdef.c -
	Primitive objects have two fields: a table index for invocation,
	and a virtual number for bookkeeping purposes.	The table index is
	always valid, even for unimplemented primitives.  In this case it
	points to a procedure which causes an UNIMPLEMENTE-PRIMITIVE error
	when invoked.  The back out mechanism takes care 

1987-12-04 15:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (4.1): Major redesign of
	front end of compiler.	Continuations are now modeled more exactly
	by means of a CPS-style analysis.  Poppers have been flushed in
	favor of dynamic links, and optimizations have been added that
	eliminate the use of static and dynamic links in many cases.

1987-12-04 15:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: fndblk.scm (4.1), opncod.scm (4.1), rgcomb.scm
	(4.1), rgproc.scm (4.1), rgretn.scm (4.1), rgrval.scm (4.1),
	rgstmt.scm (4.1), rtlgen.scm (4.1): Major redesign of front end of
	compiler.  Continuations are now modeled more exactly by means of a
	CPS-style analysis.  Poppers have been flushed in favor of dynamic
	links, and optimizations have been added that eliminate the use of
	static and dynamic links in many cases.

1987-12-04 15:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/: rgraph.scm (4.1), rtlcfg.scm (4.1), rtlcon.scm
	(4.1), rtlexp.scm (4.1), rtline.scm (4.1), rtlobj.scm (4.1),
	rtlreg.scm (4.1), rtlty1.scm (4.1), rtlty2.scm (4.1): Major
	redesign of front end of compiler.  Continuations are now modeled
	more exactly by means of a CPS-style analysis.	Poppers have been
	flushed in favor of dynamic links, and optimizations have been
	added that eliminate the use of static and dynamic links in many
	cases.

1987-12-04 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: enumer.scm (4.1), lvalue.scm (4.1), macros.scm
	(4.1), object.scm (4.1), proced.scm (4.1), rvalue.scm (4.1),
	scode.scm (4.1), sets.scm (4.1), subprb.scm (4.1), switch.scm
	(4.1), toplev.scm (4.1), utils.scm (4.1): Major redesign of front
	end of compiler.  Continuations are now modeled more exactly by
	means of a CPS-style analysis.	Poppers have been flushed in favor
	of dynamic links, and optimizations have been added that eliminate
	the use of static and dynamic links in many cases.

1987-12-04 15:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: blocks.scm (4.1), contin.scm (4.1), debug.scm
	(4.1), cfg1.scm (4.1), cfg2.scm (4.1), ctypes.scm (4.1): Major
	redesign of front end of compiler.  Continuations are now modeled
	more exactly by means of a CPS-style analysis.	Poppers have been
	flushed in favor of dynamic links, and optimizations have been
	added that eliminate the use of static and dynamic links in many
	cases.

1987-12-04 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: fgopt/closan.scm (4.1), fgopt/contan.scm (4.1),
	fgopt/desenv.scm (4.1), fggen/fggen.scm (4.1), fgopt/operan.scm
	(4.1), fgopt/order.scm (4.1), fgopt/simple.scm (4.1): Major
	redesign of front end of compiler.  Continuations are now modeled
	more exactly by means of a CPS-style analysis.	Poppers have been
	flushed in favor of dynamic links, and optimizations have been
	added that eliminate the use of static and dynamic links in many
	cases.

1987-12-04 14:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/blktyp.scm (4.1): [no log message]

1987-12-04 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/outer.scm (4.2): [no log message]

1987-12-04 14:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/: folcon.scm (4.1), simapp.scm (4.1), outer.scm
	(4.1): Major redesign of front end of compiler.  Continuations are
	now modeled more exactly by means of a CPS-style analysis.  Poppers
	have been flushed in favor of dynamic links, and optimizations have
	been added that eliminate the use of static and dynamic links in
	many cases.

1987-12-04 06:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.18): Patch because
	compiled-error-procedure is not a real primitive.  It's arity
	cannot be found.

1987-12-04 01:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules3.scm (1.17), make.scm-68040
	(1.46): Get the compiler ready for "lexpr" primitives.

1987-12-04 00:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.10): Makefile 9.59 Findprim.c 9.31 unix.c
		    9.45 cmp68020.s 9.63
	
	Update Makefile to match the new C compiler.  Add missing
	declaration in Findprim.c noticed in VMS.  Invert name of cpp
	option in unix.c .  Fix restarting bugs in cmp68020.s .

1987-12-03 14:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.31): Add declaration for VMS.

1987-12-01 11:34  Joe Marshall <jrm@zurich.ai.mit.edu>

	* microcode/syntax.c (1.8): Fix end of SCAN-SEXPS-FORWARD to return
	a valid object.

1987-11-24 20:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.191): Add
	reg:lexpr-primitive-arity and entry:compiler-primitive-lexpr-apply

1987-11-24 17:27  Joe Marshall <jrm@zurich.ai.mit.edu>

	* runtime/unxpth.scm (1.8): Fix typo in PARSE-NAME that caused "."
	to parse into ".."

1987-11-24 02:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.37): Fix a couple of minor (although fatal)
	bugs:
	
	- lseek was being invoked with arguments in the wrong order.
	
	- table_end was being used instead of table_top in the call to
	initialize_primitive_table.

1987-11-23 12:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.9): Change `OS_working_dir_pathname' to
	attempt to use `getcwd' first, then default to the user's home
	directory if that fails.

1987-11-23 01:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.24): Previous changes introduced dependency
	on "string.h".

1987-11-23 01:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/pruxfs.c (9.23): Shorten names of some files to allow
	Emacs version numbers to be used on ATT file systems.  Add
	alternative primitive definition macro which works correctly with
	Emacs tags tables.

1987-11-23 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.42), char.c (9.24), intern.c (9.44),
	regex.c (1.5), rgxprim.c (1.5): Shorten names of some files to
	allow Emacs version numbers to be used on ATT file systems.  Add
	alternative primitive definition macro which works correctly with
	Emacs tags tables.

1987-11-23 00:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: psbtobin.c (9.30), bitstr.c (9.36): Shorten names of
	some files to allow Emacs version numbers to be used on ATT file
	systems.  Add alternative primitive definition macro which works
	correctly with Emacs tags tables.

1987-11-23 00:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: string.c (9.29), bintopsb.c (9.31), findprim.c
	(9.30): Shorten names of some files to allow Emacs version numbers
	to be used on ATT file systems.  Add alternative primitive
	definition macro which works correctly with Emacs tags tables.

1987-11-23 00:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.c (1.7): Shorten names of some files to allow
	Emacs version numbers to be used on ATT file systems.  Add
	alternative primitive definition macro which works correctly with
	Emacs tags tables.
	
	`STRING->SYNTAX-ENTRY' was not allowing trailing spaces in the
	argument.
	
	`SCAN-SEXPS-FORWARD' was returning #F under some circumstances,
	instead of a state vector.

1987-11-22 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.8): Shorten names of some files to allow
	Emacs version numbers to be used on ATT file systems.  Add
	alternative primitive definition macro which works correctly with
	Emacs tags tables.

1987-11-22 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/psbmap.h (9.25): Shorten names of some files to allow
	Emacs version numbers to be used on ATT file systems.

1987-11-22 23:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prims.h (9.30): Add alternative primitive definition
	macro which works correctly with Emacs tags tables.

1987-11-22 23:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/scheme.h (9.28): Shorten names of some files to allow
	Emacs version numbers to be used on ATT file systems.

1987-11-22 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (13.49): Remove code for
	`check-and-clean-up-interrupt-channel'.  This has been moved to two
	places: (1) the buffer-flushing code has moved into the microcode,
	and (2) the interrupt acknowledgement has been moved to the
	interrupt system.

1987-11-22 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (13.46): Change ^G interrupt handler to signal
	Emacs indicating that the interrupt has been received.

1987-11-21 13:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.45): Some bug fixes by
	CPH.  Change to make primitives be renumbered by the fasloader. 
	When make is loaded it now asks whether it should be loaded
	compiled or interpreted.

1987-11-21 13:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.16): Primitives are
	fecthed from the constant block, and passed as objects to the
	appropriate microcode utility.

1987-11-21 13:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn3.scm (1.5): Abstract the constant object to
	label procedures.

1987-11-21 13:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.92): Primitives are no longer
	considered non-pointers by the compiler.  They must appear in the
	constant block (rather than as immediate constants in the
	instruction stream) so the fasloader can renumber them.

1987-11-21 13:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/msort.scm (13.42): Rewrite sort!, uncomment it, and make
	sort handle vectors and do some argument checking.

1987-11-21 13:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gensym.scm (13.42): Use number->string directly rather
	than write-to-string.

1987-11-20 11:39  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.24): Array-Make-Histogram was using (n-1)
	bins when asked for n-bin histogram. Fixed.

1987-11-20 03:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.28), psbtobin.c (9.29), bintopsb.c (9.30):
	1) The version of memtop used by compiled code was being set to the
	opposite value from that desired.
	
	2) Eliminate all remaining uses of Request_Interrupt .
	
	3) Clean up the eventual pushing stuff in interpret.c .
	
	4) Fix a potential stacklet bug in error-procedure.
	
	5) Make the compiled code interface always update memtop on
	interrupts or gc.
	
	6) Eliminate some code in non-stacklet version in interpret.c
	
	7) Bintopsb and Psbtobin have been updated to handle compiled code.

1987-11-20 03:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: stack.h (9.25), intrpt.h (1.2), interp.h (9.27),
	interp.c (9.36): 1) The version of memtop used by compiled code was
	being set to the opposite value from that desired.
	
	2) Eliminate all remaining uses of Request_Interrupt .
	
	3) Clean up the eventual pushing stuff in interpret.c .
	
	4) Fix a potential stacklet bug in error-procedure.
	
	5) Make the compiled code interface always update memtop on
	interrupts or gc.
	
	6) Eliminate some code in non-stacklet version in interpret.c
	
	7) Bintopsb and Psbtobin have been updated to handle compiled code.

1987-11-20 03:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (10.5), psbmap.h (9.24): 1) The version of
	memtop used by compiled code was being set to the opposite value
	from that desired.
	
	2) Eliminate all remaining uses of Request_Interrupt .
	
	3) Clean up the eventual pushing stuff in interpret.c .
	
	4) Fix a potential stacklet bug in error-procedure.
	
	5) Make the compiled code interface always update memtop on
	interrupts or gc.
	
	6) Eliminate some code in non-stacklet version in interpret.c
	
	7) Bintopsb and Psbtobin have been updated to handle compiled code.

1987-11-18 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (1.8): Fix bug in rule:
	target register being allocated BEFORE deletion of dead registers
	rather than AFTER.

1987-11-18 14:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (10.4), primutl.c (9.43), boot.c (9.41):
	Some changes for primitives accessed specially from compiled code
	(arithmetic).

1987-11-17 19:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: primutl.c (9.42), extern.c (9.24): Allow #T as a
	parameter make tohe microcode version of make-primitive-procedure.

1987-11-17 15:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/utabs.scm (13.47): There is now a single kind of
	primitive.  Both mechanisms have been merged.

1987-11-17 15:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: emacs.scm (13.48), error.scm (13.49), intrpt.scm
	(13.45), syntax.scm (13.51), system.scm (13.51), unpars.scm
	(13.53), unsyn.scm (13.48): There is now a single kind of
	primitive.  Both mechanisms have been merged.

1987-11-17 14:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.36): Forgot back-slashes in a C
	preprocessor macro.

1987-11-17 13:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/intrpt.h (1.1): Initial revision

1987-11-17 03:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: types.h (9.26), utabmd.scm (9.39), utils.c (9.35),
	vector.c (9.27), version.h (10.3), xdebug.c (9.23): 1) There is now
	only one kind of primitive.  External primitives have disappeared,
	and "user" primitives have the same status as "built-in"
	primitives.
	
	2) bin files only contain those primitives actually referenced in
	the file.
	
	3) Strings now always use 32 bit counts.
	
	4) Interrupt code and mask manipulation has been rewritten.
	
	5) Findprim outputs the list of primitives sorted alphabetically by
	the linkage name.  This is used to advantage by the primitive
	searching mechanism, which now uses binary sear

1987-11-17 03:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: purify.c (9.29), purutl.c (9.32), rgxprim.c (1.4),
	scheme.h (9.27), sdata.h (9.27), stack.h (9.24), step.c (9.23),
	storage.c (9.38), string.c (9.28), syntax.c (1.6), sysprim.c
	(9.27), psbmap.h (9.23): 1) There is now only one kind of
	primitive.  External primitives have disappeared, and "user"
	primitives have the same status as "built-in" primitives.
	
	2) bin files only contain those primitives actually referenced in
	the file.
	
	3) Strings now always use 32 bit counts.
	
	4) Interrupt code and mask manipulation has been rewritten.
	
	5) Findprim outputs the list of primitives sorted alphabetically by
	the linkage name.  This is used to advantage by the primitive
	searching mechanism, which now uses binary sear

1987-11-17 03:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.27), hunk.c (9.24), intern.c (9.43),
	interp.c (9.35), interp.h (9.26), list.c (9.25), load.c (9.24),
	lookup.c (9.38), memmag.c (9.32), prim.c (9.28), prim.h (9.38),
	prims.h (9.29), primutl.c (9.41): 1) There is now only one kind of
	primitive.  External primitives have disappeared, and "user"
	primitives have the same status as "built-in" primitives.
	
	2) bin files only contain those primitives actually referenced in
	the file.
	
	3) Strings now always use 32 bit counts.
	
	4) Interrupt code and mask manipulation has been rewritten.
	
	5) Findprim outputs the list of primitives sorted alphabetically by
	the linkage name.  This is used to advantage by the primitive
	searching mechanism, which now uses binary sear

1987-11-17 03:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: errors.h (9.26), extern.c (9.23), extern.h (9.28),
	fasdump.c (9.31), fasl.h (9.25), fasload.c (9.31), fixnum.c (9.25),
	flonum.c (9.24), future.c (9.25), gc.h (9.24), gccode.h (9.31),
	gctype.c (9.26), generic.c (9.25): 1) There is now only one kind of
	primitive.  External primitives have disappeared, and "user"
	primitives have the same status as "built-in" primitives.
	
	2) bin files only contain those primitives actually referenced in
	the file.
	
	3) Strings now always use 32 bit counts.
	
	4) Interrupt code and mask manipulation has been rewritten.
	
	5) Findprim outputs the list of primitives sorted alphabetically by
	the linkage name.  This is used to advantage by the primitive
	searching mechanism, which now uses binary sear

1987-11-17 03:06  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.35), bchmmg.c (9.38), bchpur.c (9.35),
	bignum.c (9.25), bitstr.c (9.35), boot.c (9.40), char.c (9.23),
	comutl.c (1.9), const.h (9.25), daemon.c (9.25), debug.c (9.26),
	dump.c (9.25): 1) There is now only one kind of primitive. 
	External primitives have disappeared, and "user" primitives have
	the same status as "built-in" primitives.
	
	2) bin files only contain those primitives actually referenced in
	the file.
	
	3) Strings now always use 32 bit counts.
	
	4) Interrupt code and mask manipulation has been rewritten.
	
	5) Findprim outputs the list of primitives sorted alphabetically by
	the linkage name.  This is used to advantage by the primitive
	searching mechanism, which now uses binary sear

1987-11-17 03:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.29), findprim.c (9.29), ppband.c
	(9.29), psbtobin.c (9.28): 1) There is now only one kind of
	primitive.  External primitives have disappeared, and "user"
	primitives have the same status as "built-in" primitives.
	
	2) bin files only contain those primitives actually referenced in
	the file.
	
	3) Strings now always use 32 bit counts.
	
	4) Interrupt code and mask manipulation has been rewritten.
	
	5) Findprim outputs the list of primitives sorted alphabetically by
	the linkage name.  This is used to advantage by the primitive
	searching mechanism, which now uses binary sear

1987-11-17 02:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bltdef.h (1.1): Initial revision

1987-11-16 19:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scan.scm (13.42): Fix bug in `scan-defines' in which an
	open-block whose body was another open-block was not being scanned
	correctly.  This resulted in `sf' creating weird output when there
	were declarations being passed to the compiler, that subsequently
	confused the compiler into signalling an error.

1987-11-11 21:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.2.1.1): Release version 6.1

1987-11-09 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.26): Stupid typo.

1987-11-09 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.25): Update the compiler memtop register
	when clearing timer interrupt.

1987-11-04 15:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (10.2): Conditionalize `tbuffer' definition
	in "vms.c" by means of an explicit switch.  This definition does
	not appear to depend on the VMS version.
	
	Shorten some names to 31 characters to make VMS compiler happy.

1987-11-04 15:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/config.h (9.32): Conditionalize `tbuffer' definition in
	"vms.c" by means of an explicit switch.  This definition does not
	appear to depend on the VMS version.

1987-11-04 15:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: lookup.c (9.37), interp.c (9.34), returns.h (9.29):
	Shorten names to 31 characters to make VMS compiler happy.

1987-10-28 16:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prim.h (9.37): Make_Prim_Exts does not need to be
	available to everyone.

1987-10-28 13:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.24): Fix a delcaration bug in
	SET-RUN-LIGHT!

1987-10-28 13:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prim.c (9.27): Fix a grouping (parenthesis) bug in
	cell?

1987-10-27 18:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.28): Make Findprim sort the entries using
	the scheme linkage name as the key.  This allows for faster lookup.

1987-10-27 13:00  Joe Marshall <jrm@zurich.ai.mit.edu>

	* edwin/: window.scm (1.143), xform.scm (1.3): initial revision

1987-10-27 12:57  Joe Marshall <jrm@zurich.ai.mit.edu>

	* edwin/kilcom.scm (1.55), edwin/kmacro.scm (1.27),
	edwin/lincom.scm (1.100), edwin/linden.scm (1.113),
	edwin/lspcom.scm (1.147), edwin/macros.scm (1.42), edwin/midas.scm
	(1.11), edwin/modefs.scm (1.113), edwin/modes.scm (1.20),
	edwin/modwin.scm (1.25), edwin/motcom.scm (1.36), edwin/motion.scm
	(1.77), edwin/nvector.scm (1.5), edwin/pasmod.scm (1.39),
	edwin/prompt.scm (1.129), edwin/reccom.scm (1.9), edwin/regcom.scm
	(1.14), edwin/regexp.scm (1.44), edwin/regops.scm (1.77),
	edwin/replaz.scm (1.62), runtime/rgxcmp.scm (1.97), edwin/ring.scm
	(1.7), edwin/schmod.scm (1.6), edwin/screen.scm (1.77),
	edwin/search.scm (1.143), edwin/sercom.scm (1.51), edwin/simple.scm
	(1.24), edwin/strpad.scm (1.2), edwin/strtab.scm (1.38),
	edwin/struct.scm (1.63), edwin/syntax.scm (1.64), edwin/tagutl.scm
	(1.28), edwin/texcom.scm (1.29), edwin/things.scm (1.74),
	edwin/tparse.scm (1.62), edwin/tximod.scm (1.9), edwin/undo.scm
	(1.41), edwin/utils.scm (1.9), edwin/utlwin.scm (1.48),
	edwin/wincom.scm (1.88): initial revision

1987-10-27 12:54  Joe Marshall <jrm@zurich.ai.mit.edu>

	* edwin/: argred.scm (1.26), autold.scm (1.37), autosv.scm (1.17),
	basic.scm (1.93), bufcom.scm (1.79), buffer.scm (1.126), buffrm.scm
	(1.27), bufmnu.scm (1.107), bufset.scm (1.5), bufwfs.scm (1.2),
	bufwin.scm (1.273), bufwiu.scm (1.3), bufwmc.scm (1.1), c-mode.scm
	(1.40), calias.scm (1.1), class.scm (1.65), comman.scm (1.54),
	comred.scm (1.69), comtab.scm (1.49), comwin.scm (1.132),
	curren.scm (1.78), debuge.scm (1.34), dired.scm (1.96), editor.scm
	(1.181), edtfrm.scm (1.71), evlcom.scm (1.10), filcom.scm (1.128),
	fileio.scm (1.85), fill.scm (1.40), hlpcom.scm (1.84), image.scm
	(1.121), info.scm (1.86), input.scm (1.75), intmod.scm (1.28),
	keymap.scm (1.4): initial revision

1987-10-24 05:42  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.23): Added array-unary-function! making
	available (for arrays) all HPUX math functions. 

1987-10-20 23:44  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/image.c (9.25): Fixed image-make-ring (typo in
	argument-range-checking).

1987-10-19 16:51  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.h (9.23): Rewrote some comments and trivia, and
	moved/added some macros for arrays.

1987-10-19 16:46  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/array.c (9.22): Added array-division, rewrote some
	comments and trivia, and moved some macros to array.h 

1987-10-14 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (1.4): Fix bug: missing integration
	declarations prevent proper inline coding of structure accessors.

1987-10-12 23:42  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/image.c (9.24): Fixed typo in C_Image_Periodic_Shift:
	"-" should be "+" for negative shifts. The bug had not detected
	because positive shifts worked just fine. 

1987-10-12 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/histry.scm (13.49): Fix bug introduced with removal of
	danger bits.  EQ? cannot be used to compare two reduction pointers
	or two vertebra pointers since they can have different types.

1987-10-09 14:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (10.1): New microcode version.

1987-10-09 14:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/cmpint.h (10.1): Eliminate all remnants of danger bits.
	 - History now uses two distinct types for marked and unmarked
	versions.  - Stacklets/control points have a separate word used as
	the reuse flag.

1987-10-09 13:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: gconst.scm (3.3), make.scm (3.13): Eliminate all remnants of
	danger bits.  - History now uses two distinct types for marked and
	unmarked versions.  - Stacklets/control points have a separate word
	used as the reuse flag.

1987-10-09 13:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: boot.scm (13.44), histry.scm (13.48), scode.scm
	(13.45): Eliminate all remnants of danger bits.  - History now uses
	two distinct types for marked and unmarked versions.  -
	Stacklets/control points have a separate word used as the reuse
	flag.

1987-10-09 12:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: types.h (9.25), utabmd.scm (9.38), utils.c (9.34),
	version.h (9.103), xdebug.c (9.22): Eliminate all remnants of
	danger bits.  - History now uses two distinct types for marked and
	unmarked versions.  - Stacklets/control points have a separate word
	used as the reuse flag.

1987-10-09 12:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.26), hunk.c (9.23), interp.c (9.33),
	interp.h (9.25), list.c (9.24), memmag.c (9.31), object.h (9.26),
	prim.c (9.26), purutl.c (9.31), returns.h (9.28), scheme.h (9.26),
	sdata.h (9.26), stack.h (9.23), storage.c (9.37): Eliminate all
	remnants of danger bits.  - History now uses two distinct types for
	marked and unmarked versions.  - Stacklets/control points have a
	separate word used as the reuse flag.

1987-10-09 12:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.28), bchmmg.c (9.37), bitstr.c (9.34),
	boot.c (9.39), future.c (9.24), gc.h (9.23), gccode.h (9.30),
	gctype.c (9.25), history.h (9.23): Eliminate all remnants of danger
	bits.  - History now uses two distinct types for marked and
	unmarked versions.  - Stacklets/control points have a separate word
	used as the reuse flag.

1987-10-09 10:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (13.47): Do not transmit "end-of-control-g"
	sequence back to emacs unless the interrupt character is really a
	control g.

1987-10-08 13:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.23): Fix long standing bug in HALT. 
	Restartable_Exit was being invoked twice.

1987-10-05 17:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.36): Minor bug: compiler_cache_assignment
	was passing the wrong kind argument to compiler_cache_reference.

1987-10-05 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: fggen/declar.scm (1.2), fgopt/outer.scm (1.2),
	fgopt/folcon.scm (1.2): - Make assignments use their own caches,
	distinct from those use by references.	- Turn uuo links on by
	default.  - Partly implement the CONSTANT declaration.	- Add some
	more declaration language (ALL and NONE).  - Make the variable set
	be computed at the right point during graph construction.

1987-10-05 16:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/rules3.scm (1.15), back/lapgn1.scm
	(1.42), back/lapgn3.scm (1.4): - Make assignments use their own
	caches, distinct from those use by references.	- Turn uuo links on
	by default.  - Partly implement the CONSTANT declaration.  - Add
	some more declaration language (ALL and NONE).	- Make the variable
	set be computed at the right point during graph construction.

1987-10-05 16:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: machin.scm (1.51), make.scm-68040
	(1.44), rules1.scm (1.7): - Make assignments use their own caches,
	distinct from those use by references.	- Turn uuo links on by
	default.  - Partly implement the CONSTANT declaration.	- Add some
	more declaration language (ALL and NONE).  - Make the variable set
	be computed at the right point during graph construction.

1987-10-05 16:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm2.scm (1.2), lapgen.scm (1.190):
	- Make assignments use their own caches, distinct from those use by
	references.  - Turn uuo links on by default.  - Partly implement
	the CONSTANT declaration.  - Add some more declaration language
	(ALL and NONE).  - Make the variable set be computed at the right
	point during graph construction.

1987-10-05 16:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlgen/rgstmt.scm (1.9), rtlopt/ralloc.scm (1.13),
	rtlbase/rtlty1.scm (1.14): - Make assignments use their own caches,
	distinct from those use by references.	- Turn uuo links on by
	default.  - Partly implement the CONSTANT declaration.	- Add some
	more declaration language (ALL and NONE).  - Make the variable set
	be computed at the right point during graph construction.

1987-10-05 15:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.c (9.35): [no log message]

1987-10-05 14:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: lookup.h (9.39), object.h (9.25), returns.h (9.27),
	sdata.h (9.25), storage.c (9.36), trap.h (9.39), types.h (9.24),
	version.h (9.102): Change variable caches so assignments and
	references go through different caches.  This allows uuo links to
	be turned on by default.

1987-10-05 14:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: ppband.c (9.27), debug.c (9.25), errors.h (9.25),
	fhooks.c (9.25), gccode.h (9.29), gctype.c (9.24), interp.c (9.32):
	Change variable caches so assignments and references go through
	different caches.  This allows uuo links to be turned on by
	default.

1987-10-02 19:57  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/bignum.c (9.24): Fixed bug in division.

1987-09-24 02:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (13.46): Repaginate, make last set of changes
	clearer.  Return value must always be true (previously it was
	undefined in some cases).

1987-09-21 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.28), psbtobin.c (9.27), bchdmp.c
	(9.34), fasdump.c (9.30), fasload.c (9.30), gccode.h (9.28),
	version.h (9.101): Fix relocation of stack environments on band
	restore.

1987-09-17 23:25  Gerald Jay Sussman <gjs@zurich.ai.mit.edu>

	* runtime/emacs.scm (13.45): To add emacs interface hacks to flush
	input on control-g. - Aab

1987-09-03 01:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.24): Add a few special
	utilities for generic arithmetic.

1987-09-03 01:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rgspcm.scm (1.1): Initial revision

1987-09-03 01:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (1.43),
	machines/bobcat/lapgen.scm (1.189), machines/bobcat/rules3.scm
	(1.14), rtlbase/rtlty1.scm (1.13), rtlbase/rtlcon.scm (1.13),
	rtlbase/rtlexp.scm (1.3): Add a few special utilities for generic
	arithmetic.

1987-09-03 01:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: rtlgen/rgcomb.scm (1.34), rtlopt/rcse1.scm (1.114):
	Add a few special utilities for generic arithmetic.

1987-08-31 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg3.scm (1.4): Fix typo from last change.

1987-08-31 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.20): Delete noop nodes BEFORE
	compressing the bblocks.  Otherwise the bblock compressor will
	encounter them and get confused.

1987-08-31 17:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg2.scm (1.3): Make new interface for using noop
	nodes that controls both allocation and deletion of the nodes.

1987-08-28 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.5): Define
	with-temporary-register-copy! for 3 operand instructions.

1987-08-28 17:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.100): Fix compiled_entry_to_block, which
	was branching on the wrong condition.

1987-08-28 14:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.4): Add with-register-copy-alias! for
	the benefit of machines with 3 operand instructions.

1987-08-27 17:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.91): Delete `complete-garbage-collect'
	from set of unsafe primitives.	Delete structure references from
	set of constant foldable primitives.

1987-08-25 21:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg3.scm (1.3): Fix bug which caused dangling nodes
	to be left around when true or false pcfg's were connected to other
	things.

1987-08-25 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (13.43): Fix bug which caused (string->number
	"2e-get") to signal an error instead of returning #F.

1987-08-25 16:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (9.99), bchmmg.c (9.36): Fix bug in
	bchscheme.  The current disk position was not being updated in some
	cases.

1987-08-24 22:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/pmerly.scm (1.6): Fix bug in can-integrate?

1987-08-24 18:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (1.3): Disable copier definitions by default.

1987-08-24 17:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insutl.scm (1.7): Make-effective-address is
	no longer integrated because the early instruction code expects it
	not to be integrated.

1987-08-24 17:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insmac.scm (1.11): Missing comma in early
	expansion of operands.

1987-08-24 16:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/pmerly.scm (1.5): Missing argument in call to
	scode/combination-components.

1987-08-24 15:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/pmerly.scm (1.4): Fix integration of the result of
	applying early transformers.

1987-08-24 11:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr3.scm (1.7): Displacements are
	simplified.  They no longer have to discriminate between @PCO and
	@PCR.

1987-08-24 10:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr1.scm (1.5): Displacements are
	simplified.  They no longer have to discriminate between @PCO and
	@PCR.

1987-08-24 10:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insmac.scm (1.10): Displacements are
	simplified.  They no longer have to discriminate between @PCO and
	@PCR.

1987-08-24 10:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/coerce.scm (1.3): Eliminating unused
	coercions.

1987-08-23 12:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/inerly.scm (1.4): Missing backquotes.

1987-08-23 04:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/inerly.scm (1.3): Unlexperize
	DEFINE-TRANSFORMER.

1987-08-23 03:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: inerly.scm (1.2), insmac.scm (1.9): Fix
	immediate effective address early processing.

1987-08-22 23:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.23): Fix the directory
	where infutl lives.

1987-08-22 18:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/inerly.scm (1.1): Initial revision

1987-08-22 18:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: insmac.scm (1.8), insutl.scm (1.6): Minor
	modifications for early instruction processing.

1987-08-22 18:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insmac.scm (1.7): Minor modifications for
	early instruction processing.

1987-08-22 18:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insutl.scm (1.5): Minor modifications for
	early instruction processing.

1987-08-21 10:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insmac.scm (1.6): Fix displacements.

1987-08-21 10:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr3.scm (1.6): Fix PUSHA opcodes.

1987-08-20 22:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dsyn.scm (1.5): Missing comma.

1987-08-20 22:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dsyn.scm (1.4): Fix order of argument
	evaluation bug in make-instruction-parser.

1987-08-20 17:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/regex.c (1.4): Minor change to satisfy the VMS C
	compiler which does not like arrays in registers.

1987-08-20 16:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insutl.scm (1.4): & effective address was
	not being syntaxed correctly.

1987-08-20 16:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insmac.scm (1.5): Operands were not being
	integrated into instruction stream correctly.

1987-08-20 15:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: instr3.scm (1.5), instr2.scm (1.4): Add
	definition of DEFINE-TRIVIAL-INSTRUCTION.

1987-08-20 15:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dsyn.scm (1.3): Fix expansion of
	DEFINE-INSTRUCTION.

1987-08-20 14:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr2.scm (1.3): Fix (CVT D F ...) opcode.

1987-08-20 14:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dsyn.scm (1.2): Fix Typo.

1987-08-20 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/pathnm.scm (13.44): Reimplement pathname abstraction
	using vectors instead of environments.	Install truename code here
	because rest of completion code is being deleted from the runtime
	system.  If `pathname-newest' is false, then NEWEST version number
	handling is disabled.

1987-08-19 23:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (1.7): Now if `pathname-newest' is false, it
	indicates that NEWEST versions should not be used.

1987-08-19 23:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/sfile.scm (13.42): Move `file-exists?' into the pathname
	code since it is strongly related to that.

1987-08-19 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (1.6): Define `pathname-newest' in terms of
	`truename-exists?'.

1987-08-19 22:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (1.5): Add `pathname-newest' operation.

1987-08-19 01:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/dsyn.scm (1.1): Initial revision

1987-08-19 00:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr1.scm (1.4): Separate opcode from
	operand in BUG instruction.

1987-08-18 17:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insmac.scm (1.4): Fix syntaxing of
	displacement fields.

1987-08-18 17:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr3.scm (1.4): Fix syntactic bug in
	definition of conditional branch (B) instruction.

1987-08-18 16:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.90.1.1): Eliminate
	complete-garbage-collect from the list of unsafe primitives.

1987-08-18 16:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr3.scm (1.3): Typo in field
	instructions.

1987-08-18 15:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr1.scm (1.3): #xOC -> #x0C

1987-08-18 14:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insutl.scm (1.3): Fix parenthesis mismatch.

1987-08-18 04:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: instr3.scm (1.2), insmac.scm (1.3): Add
	redundant information for the benefit of the disassembler.

1987-08-18 04:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr2.scm (1.2): Add redundant information
	for the benefit of the disassembler.

1987-08-18 03:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/instr1.scm (1.2): Add redundant information
	for the benefit of the disassembler.

1987-08-17 15:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bitstr.c (9.33), bitstr.h (1.4), version.h (9.98):
	Fix bug in read/write-bits! and make them work on the VAX.

1987-08-17 14:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scomb.scm (13.43): Do no constant fold operations on
	mutable structures.

1987-08-16 11:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gccode.h (9.27): Patch for vax cpp bug.

1987-08-14 01:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: instr1.scm (1.1), instr2.scm (1.1),
	instr3.scm (1.1): Initial revision

1987-08-14 01:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insutl.scm (1.2): Add self adjusting
	addressing modes.

1987-08-14 01:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/insmac.scm (1.2): Add variable width
	syllables.

1987-08-12 21:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/assmd.scm (1.32), back/syntax.scm
	(1.20), back/asmmac.scm (1.5), back/insseq.scm (1.3),
	back/bittop.scm (1.6), back/syerly.scm (1.4): Make instruction
	sequencing independent of machine byte ordering.

1987-08-12 21:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/: insutl.scm (1.1), insmac.scm (1.1):
	Initial revision

1987-08-12 21:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/coerce.scm (1.2): Add displacement
	coercions.

1987-08-12 17:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.97): Change to OS_read_char_ready_p,
	OS_System_Clock, and OS_real_time_clock for machines where there is
	no clock available.

1987-08-11 02:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rgraph.scm (1.2): Allocate rgraphs with correct
	size.

1987-08-11 01:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (1.2): Fix bug in defaulting of keyword
	constructor arguments.

1987-08-11 01:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/defstr.scm (1.1): Initial revision

1987-08-10 17:36  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.27): Remove signed character
	dependencies.

1987-08-10 17:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.96): Minor tuning of bchscheme parameters.

1987-08-10 17:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.35): Use prealloc to improve performance of
	sequential reads/writes.  Cache the current disk position to avoid
	lseek if the next read/write is sequential.

1987-08-10 17:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.30): Tune the disk buffer size.

1987-08-10 16:27  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/image.c (9.23): Added READ-IMAGE-FROM-2BINT-FILE  2BINT
	:= putw(nrows),putw(ncols), followed by 2byte integers (high order
	byte first).  Saves half space of previous CBIN-images (putw stores
	4 bytes).  At some point I will throw away the old 
	read-image-from-cbin-file. --pas

1987-08-10 16:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/bitstr.scm (13.46): Add bit-string-append-reversed for
	use by the compiler.

1987-08-10 16:06  Panayotis Skordos <pas@zurich.ai.mit.edu>

	* microcode/image.c (9.22): Added READ-IMAGE-FROM-2BINT-FILE  2BINT
	:= putw(nrows),putw(ncols), followed by 2byte integers (high order
	byte first).  Saves half space of previous CBIN-images (putw stores
	4 bytes).  At some point I will throw away the old 
	read-image-from-cbin-file. --pas

1987-08-08 19:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcfg.scm (1.5): Mark the graph when
	compressing bblocks to prevent walking parts of it twice.  Also be
	more careful in pblock case since stashed value of alternative
	could have been deleted from the graph by the compression of the
	consequent.

1987-08-08 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.19): Compress blocks with a
	separate set of node marks since that algorithm must mark the
	graph.

1987-08-08 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcfg.scm (1.4): Discard information a bit more
	aggressively.

1987-08-07 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules4.scm (1.4): Implement rule for
	cache-unassigned? trap.

1987-08-07 13:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.22): [no log message]

1987-08-07 13:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr4.scm (1.3): Fix typo.

1987-08-07 13:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: dassm1.scm (1.1), dassm2.scm (1.1),
	dassm3.scm (1.1): Initial revision

1987-08-07 13:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (1.41), back/lapgn3.scm (1.3),
	machines/bobcat/make.scm-68040 (1.42): Redesign RTL data
	structures.  New structures have CFG nodes which represent basic
	blocks.  Each basic block contains one or more RTL instructions. 
	Resulting data structures use considerably less storage than old
	representation.

1987-08-07 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlopt/ralloc.scm (1.12), rtlopt/rcse1.scm (1.113),
	rtlopt/rcserq.scm (1.4), rtlopt/rcompr.scm (1.3), rtlopt/rdebug.scm
	(1.2), rtlgen/rgcomb.scm (1.33), rtlopt/rlife.scm (1.58),
	rtlgen/rtlgen.scm (1.18): Redesign RTL data structures.  New
	structures have CFG nodes which represent basic blocks.  Each basic
	block contains one or more RTL instructions.  Resulting data
	structures use considerably less storage than old representation.

1987-08-07 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rgraph.scm (1.1): Initial revision

1987-08-07 13:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg1.scm (1.150), base/cfg2.scm (1.2),
	base/cfg3.scm (1.2), base/ctypes.scm (1.51),
	machines/bobcat/decls.scm (1.21), base/rvalue.scm (1.5),
	base/macros.scm (1.61), rtlbase/rtlcfg.scm (1.3): Redesign RTL data
	structures.  New structures have CFG nodes which represent basic
	blocks.  Each basic block contains one or more RTL instructions. 
	Resulting data structures use considerably less storage than old
	representation.

1987-08-07 11:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: psbtobin.c (9.26), bintopsb.c (9.27), psbmap.h
	(9.22): Make Psbtobin and Bintopsb handle bit strings.

1987-08-06 16:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.26): Insert page breaks between blocks.

1987-08-06 15:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.32): Add bit-string-xor! primitive.

1987-08-06 15:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/bitstr.scm (13.45): Add bit-string-xor! primitive.

1987-08-06 15:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.37): Add bit-string-xor! primitive. 
	Comment out Gator primitives.

1987-08-06 14:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.95): Fix typo in config.h Add
	bit-string-xor! primitive.

1987-08-06 14:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.31): FALS_PYR ==> FASL_PYR

1987-08-06 02:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.34), bchpur.c (9.34), version.h (9.94):
	Fix weak pairs for bchscheme.

1987-08-06 01:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bitstr.h (1.3), version.h (9.93), wsize.c (9.23),
	config.h (9.30): - Make bitstr.c work on machines with "little
	indian" byte ordering convention by parameterizing bitstr.h
	according to byte order.
	
	- Make Wsize compute the byte ordering information.
	
	- Add changes for Alliant.

1987-08-06 01:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.31): - Make bitstr.c work on machines with
	"little indian" byte ordering convention by parameterizing bitstr.h
	according to byte order.
	
	- Make Wsize compute the byte ordering information.
	
	- Add changes for Alliant.

1987-08-05 23:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.41): Fix bug in
	block->variable-names.

1987-08-05 03:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: string.c (9.27), version.h (9.92): Fix bug in
	allocate_string which was making impurify die.

1987-08-04 02:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlopt/rlife.scm (1.57), rtlgen/rtlgen.scm (1.17),
	back/lapgn1.scm (1.40): Allocate RTL registers separately for each
	procedure (and quotation), since no register is used in more than
	one procedure.

1987-08-04 02:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/ctypes.scm (1.50), base/rvalue.scm (1.4),
	base/macros.scm (1.60), rtlopt/ralloc.scm (1.11), rtlopt/rcse1.scm
	(1.112), rtlopt/rcserq.scm (1.3), rtlopt/rcompr.scm (1.2),
	rtlgen/rgcomb.scm (1.32): Allocate RTL registers separately for
	each procedure (and quotation), since no register is used in more
	than one procedure.

1987-08-03 15:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.91): Fix some bugs in uuo links, and
	reorganize the uuo link trap code.

1987-08-01 05:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.52): - Make the environment abstraction
	handle all trap objects.  - Make compiled procedures print like
	#[COMPILED-PROCEDURE #x<datum>]

1987-08-01 02:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.25), intern.c (9.42), version.h (9.90): -
	Set-fixed-objects-vector now errors when given a vector which is
	too short.  - Fix bug in the debugging utility Find_Symbol.  -
	Partly rewrite primitives in hooks.c and intern.c to use
	PRIMITIVE_RETURN, PRIMITIVE_ABORT, and signal_error_from_primitive.

1987-07-30 22:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.40): Include
	disassembler and 68020 instruction files.

1987-07-30 22:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.39): Export some
	procedures from the compiler-package to the global environment.  Do
	not change the default directory or environment or syntax table
	when loading the compiler.

1987-07-30 20:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (1.9.1.2): Allow dereferencing of
	constants in RTL.

1987-07-30 20:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (1.12): Allow dereferencing of
	constants in RTL.

1987-07-30 19:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.89): Make cmp68020.s understand 32 bit
	block offsets.

1987-07-30 17:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: assmd.scm (1.31), instr2.scm (1.13),
	lapgen.scm (1.188), make.scm-68040 (1.38), rules3.scm (1.13):
	Reimplement 32 bit offsets in compiled code blocks.  They are now
	implemented as a chain of 16 bit offsets, since parts of the system
	depend on the fact that any given offset is only 16 bits long.

1987-07-30 17:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/: bittop.scm (1.5), syerly.scm (1.3), syntax.scm
	(1.19): Reimplement 32 bit offsets in compiled code blocks.  They
	are now implemented as a chain of 16 bit offsets, since parts of
	the system depend on the fact that any given offset is only 16 bits
	long.

1987-07-30 10:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (9.88), comutl.c (1.8): Change the way 32
	bit offsets are implemented.

1987-07-30 03:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: inerly.scm (1.4), insmac.scm (1.123),
	instr1.scm (1.65), instr2.scm (1.12), instr3.scm (1.14), insutl.scm
	(1.5), lapgen.scm (1.187), make.scm-68040 (1.37), rules3.scm
	(1.12): Make the compiler handle 32 bit offsets.

1987-07-30 03:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/: bittop.scm (1.4), bitutl.scm (1.3), syntax.scm
	(1.18): Make the compiler handle 32 bit offsets.

1987-07-30 03:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/pmerly.scm (1.3): Add a kludge to disable the
	integration of the results of some transformers applied early.

1987-07-29 04:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasload.c (9.29): Fix off by one bug in Intern_Block.

1987-07-29 01:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax.scm (13.50.1.1), sysclk.scm (13.41.1.1),
	system.scm (13.50.1.1), unpars.scm (13.51.1.1), unsyn.scm
	(13.47.1.1), unxpth.scm (1.4.1.1), utabs.scm (13.46.1.1),
	vector.scm (13.44.1.1), where.scm (13.42.1.1), wind.scm
	(13.42.1.1): [no log message]

1987-07-29 01:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: qsort.scm (13.41.1.1), rep.scm (13.42.1.1), scan.scm
	(13.41.1.1), scode.scm (13.44.1.1), scomb.scm (13.42.1.1),
	sdata.scm (13.43.1.1), sfile.scm (13.41.1.1), stream.scm
	(13.41.1.1), string.scm (13.42.1.1): [no log message]

1987-07-29 01:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hash.scm (13.46.1.1), histry.scm (13.47.1.1), input.scm
	(13.50.1.1), io.scm (13.45.1.1), lambda.scm (13.42.1.1), list.scm
	(13.42.1.1), msort.scm (13.41.1.1), numpar.scm (13.42.1.1),
	output.scm (13.46.1.1), parse.scm (13.43.1.1), pathnm.scm
	(13.43.1.1), pp.scm (13.44.1.1): [no log message]

1987-07-29 00:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (13.44.1.1), bitstr.scm (13.44.1.1),
	boot.scm (13.43.1.1), char.scm (13.42.1.1), datime.scm (13.41.1.1),
	debug.scm (13.43.1.1), emacs.scm (13.44.1.1), equals.scm
	(13.42.1.1), error.scm (13.48.1.1), events.scm (13.42.1.1),
	format.scm (13.43.1.1), gc.scm (13.43.1.1), gcstat.scm (13.44.1.1),
	gensym.scm (13.41.1.1): [no log message]

1987-07-28 23:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.87): Fix bug in "cmp68020.s": multiple
	variable cache initialization code where D1 was not restored
	properly after calling into the interpreter.

1987-07-28 22:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.16): When walking predicate nodes,
	must be able to handle case where either the consequent or
	alternative is nonexistent.  This is because we must walk over
	incomplete graphs when generating code for operands.

1987-07-28 18:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simapp.scm (1.3): Change procedure application
	simulator to make unsupplied optional (and required!) arguments be
	unknowable.  We could actually do better by making them be
	connected to an unassigned object but that isn't too important
	right now.

1987-07-28 14:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/vax/coerce.scm (1.1): Initial revision

1987-07-27 21:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/string.scm (13.42): Change definition of primitives to
	eliminate `in-package'.

1987-07-27 19:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules2.scm (1.3): Refix typo.

1987-07-27 18:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/bitstr.scm (13.44): Change definition of primitives to
	eliminate `in-package'.

1987-07-27 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/char.scm (13.42): Change definition of primitives to
	eliminate `in-package'.

1987-07-27 13:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/generic.c (9.24): Fix bug in floor and ceil when not
	provided by the system.

1987-07-27 12:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/flonum.c (9.23): Fix bug in LN-FLONUM.

1987-07-26 18:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.13): Undo last change, it loses by
	attempting to close procedures in wrong place.

1987-07-24 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (13.50): [no log message]

1987-07-24 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (13.49): Disable sticky pathname defaulting. 
	Leave hooks in place in case we ever figure this out.

1987-07-24 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.12): Handle cases where vnodes have
	known values that are not constants.

1987-07-23 17:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.86): Implement numerous small changes to
	support new Xlib interface.

1987-07-23 17:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/vector.c (9.26): Add new C procedures for allocating
	vectors.

1987-07-23 17:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.33): Add new procedure for converting fixnum
	arguments to C integers.

1987-07-23 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/string.c (9.26): Implement new procdures for allocating
	strings.

1987-07-23 17:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/prims.h (9.28): Implement more powerful primitive
	header and argument reference interface.

1987-07-23 17:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/object.h (9.24): Add some useful macros.

1987-07-23 17:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.h (9.24): Add `UNWIND_PROTECT' macro.

1987-07-23 17:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/generic.c (9.23): Add `object_to_long' which is like
	`Scheme_Integer_To_C_Integer' but a bit more flexible.

1987-07-22 17:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchmmg.c (9.33), comutl.c (1.7), gccode.h (9.26),
	purutl.c (9.30), version.h (9.85): The microcode now understands 32
	bit block offsets in compiled code.

1987-07-22 17:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.27.1.1): In `generate-operands',
	handle case where number of operands exceeds sum of required and
	optional parameters.

1987-07-22 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.31): In `generate-operands', handle
	case where number of operands is less than number or required plus
	number of optional parameters.

1987-07-22 13:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: back/bittop.scm (1.3), back/bitutl.scm (1.2),
	back/syntax.scm (1.17), back/asmmac.scm (1.4),
	machines/bobcat/inerly.scm (1.3), machines/bobcat/insmac.scm
	(1.122), machines/bobcat/instr3.scm (1.13),
	machines/bobcat/make.scm-68040 (1.36): The assembler now chooses
	the right length for branch instructions.

1987-07-21 18:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gccode.h (9.25): Install missing defaults for case when
	there is no compiled code support.

1987-07-21 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (1.9.1.1): Fix order-of-events bug in
	open-coded consing.

1987-07-21 18:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (1.11): Fix order-of-events bug in
	open-coded consing.

1987-07-21 14:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: coerce.scm (1.9), insmac.scm (1.121),
	instr1.scm (1.64), insutl.scm (1.4), make.scm-68040 (1.35): Add new
	68020 addressing modes.

1987-07-21 11:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr4.scm (1.2): Change transformer
	name.

1987-07-21 00:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: rgxprim.c (1.3), regex.c (1.3): Redo macro so that
	open-paren of macro is on same line as its name.

1987-07-20 21:40  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.11): Added generation of
	debugging info filename.

1987-07-20 14:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.10): Fix broken increment
	of frame-size for invocation:lookup rule.

1987-07-19 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.84): Forgot to update `SUBVERSION' for
	previous change.

1987-07-19 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.83): New release number "5.3.0".

1987-07-19 17:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unxpth.scm (1.4): Typo in pathname parser.

1987-07-19 17:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty2.scm (1.2): Missing definition of
	`rtl:interpreter-call-result:cache-unassigned?'.

1987-07-17 23:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.22), version.h (9.82): Add a few new
	primitives to support more sophisticated file manipulation.

1987-07-17 23:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unxpth.scm (1.3), pathnm.scm (13.43): Reimplement
	pathname parsing stuff for new VMS parser.

1987-07-17 15:30  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (1.20), make.scm-68040
	(1.34): First release of debugging information generating
	utilities.

1987-07-17 11:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr4.scm (1.1): Initial revision

1987-07-17 11:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (1.19), insmac.scm (1.120),
	instr1.scm (1.63), instr2.scm (1.11), instr3.scm (1.12), insutl.scm
	(1.3): Complete the 68020 instruction set.

1987-07-17 11:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: coerce.scm (1.8), make.scm-68040
	(1.33): Complete the 68020 instruction set.

1987-07-16 06:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.32): Bug in
	generate-n-times.  It now expects a thunk rather than an
	instruction.  Change branch types from S and L to B and W.  Bug in
	NMV header size.

1987-07-16 06:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/bittop.scm (1.2): Bug in NMV header size.

1987-07-16 06:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr3.scm (1.11): Change branch types
	from S and L to B and W.

1987-07-16 06:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules3.scm (1.9), rules4.scm (1.3):
	Fix bug in generate-n-times.  It now expects a thunk rather than an
	instruction.  Change branch types from S and L to B and W.

1987-07-16 06:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.186): Fix bug in
	generate-n-times.  It now expects a thunk rather than an
	instruction.

1987-07-15 20:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.c (1.5): Fix stupid typo from last change.

1987-07-15 18:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.c (1.4): Can't use the identifier `entry' on
	VMS.

1987-07-15 18:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: interp.c (9.31), comutl.c (1.6), string.c (9.25),
	rgxprim.c (1.2), bitstr.c (9.30), regex.c (1.2): Shorten names to
	31 characters for VMS.

1987-07-15 17:33  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: lapgen.scm (1.185), rules3.scm (1.8):
	[no log message]

1987-07-14 23:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/: bitutl.scm (1.1), bittop.scm (1.1): Initial
	revision

1987-07-14 22:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: back/syntax.scm (1.16), back/symtab.scm (1.43),
	machines/bobcat/decls.scm (1.18), machines/bobcat/make.scm-68040
	(1.31): Add branch tensioning assembler.

1987-07-14 00:56  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.5), utabmd.scm (9.36): Added primitive
	COMPILED-CODE-ADDRESS->OFFSET

1987-07-14 00:54  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* microcode/version.h (9.81): Upped version to reflect addition of
	primitive COMPILED-CODE-ADDRESS->OFFSET

1987-07-13 23:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/syntax.h (1.2): Add macro to abstract the type of
	syntax tables.	This is used by the regular expression code.

1987-07-13 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: rgxprim.c (1.1), regex.h (1.1), regex.c (1.1):
	Initial revision

1987-07-13 22:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: utabmd.scm (9.35), version.h (9.80): Implement
	regular expression primitives for Edwin.

1987-07-13 18:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/assmd.scm (1.30): Add
	maximum-padding-length definition.

1987-07-10 16:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.17): Change
	`filename-append' to make lists of absolute pathnames.

1987-07-09 21:09  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/base/rvalue.scm (1.3): Fixed bug in MAKE-BLOCK.

1987-07-09 19:20  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.30): Made combinations pass their
	block to continuations.

1987-07-09 19:19  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/base/rvalue.scm (1.2): Added "block-frame" slot to hold
	on to debugging information.

1987-07-09 19:18  Henry M. Wu <mhwu@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.49): Added "block" slot to
	continuation objects.

1987-07-08 18:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules3.scm (1.7), rules4.scm (1.2),
	machin.scm (1.50), make.scm-68040 (1.30): The RTL is now translated
	directly to bits, rather than LAP.

1987-07-08 18:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: insmac.scm (1.119), instr1.scm (1.62),
	instr2.scm (1.10), instr3.scm (1.10), lapgen.scm (1.184),
	rules1.scm (1.6), rules2.scm (1.2): The RTL is now translated
	directly to bits, rather than LAP.

1987-07-08 18:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/: asmmac.scm (1.3), lapgn1.scm (1.39), lapgn2.scm
	(1.3), lapgn3.scm (1.2), regmap.scm (1.90), syntax.scm (1.15): The
	RTL is now translated directly to bits, rather than LAP.

1987-07-08 17:52  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: base/macros.scm (1.59), base/pmlook.scm (1.5),
	base/pmpars.scm (1.2), machines/bobcat/decls.scm (1.16),
	base/utils.scm (1.90): The RTL is now translated directly to bits,
	rather than LAP.

1987-07-08 00:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/make.scm (3.12): Up version number.

1987-07-08 00:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: pardec.scm (3.5), subst.scm (3.6), usiexp.scm (3.4),
	xform.scm (3.5): Add operator expanders for compiler.

1987-07-08 00:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: emodel.scm (3.3), make.scm (3.11): Add operator expanders
	for compiler.

1987-07-08 00:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/copy.scm (3.6): Add operator expanders for compiler.

1987-07-07 18:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.6): Redefine meaning of
	frame-size slot for `invocation:primitive'.  Fix bug in meaning of
	that slot for `invocation:uuo-link'.

1987-07-07 18:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.29): Redefine meaning of frame-size
	slot for `invocation:primitive'.

1987-07-07 17:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/vector.c (9.25): Define `make_vector' procedure to
	facilitate construction of vectors.

1987-07-07 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fasload.c (9.28): Add relocation hook for common lisp.

1987-07-07 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intercom.c (9.23): Added two new primitives.

1987-07-07 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.30): Add site-specific hooks to expression
	and return dispatches.

1987-07-07 16:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.79): [no log message]

1987-07-07 16:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (13.50): Update reference from `add-syntax!'
	to `syntax-table-define'.

1987-07-07 16:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/default.h (9.27): Add hooks for various extensions.

1987-07-07 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/futures.h (9.22): Define `FUTURE_VARIABLE_SPLICE'
	macro.

1987-07-07 15:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/scheme.h (9.25): Add site-specific include file.

1987-07-07 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/zones.h (9.22): Delete obsolete definitions.  Define
	`Zone_Scheduler'.

1987-07-07 15:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.78): UUO link bugs.

1987-07-07 10:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.77): Minor changes to unix.c, future.c,
	default.h, and lookup.h .

1987-07-06 22:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/lookup.h (9.38): Add default Future_Variable_Splice.

1987-07-06 22:39  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/default.h (9.26): Move New_Future_Number to future.c

1987-07-06 22:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/future.c (9.23): Move New_Future_Number to future.c

1987-07-06 22:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/wsize.c (9.22): Make Wsize work on machines which do
	not set ERANGE on floating point overflow.

1987-07-06 13:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.88.1.3): Replace write-to-string with
	number->string.

1987-07-06 13:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/syntax.scm (1.14.1.3): make-coercion-name now uses
	symbol->string and number->string rather than write-to-string.

1987-07-03 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (1.5): Use correct type code
	for procedure entries.

1987-07-03 17:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.5): Don't forget to setup
	the number of arguments in D0 for uuo-linked invocations.

1987-07-03 17:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.76): `compiler_fake_uuo_link' was looking
	for the procedure in the wrong place on the stack.

1987-07-03 15:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.29): Add declarations
	and uuo-link handling.

1987-07-03 14:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.4): Add new invocation
	type for uuo-link invocations.	Always output a constants slot for
	the environment, even if it isn't used; this will be taken
	advantage of if we use other slots near the end for other purposes.

1987-07-03 14:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.28): Use uuo-links for unknown
	reference-calls if the variable has a declaration saying to do so.

1987-07-03 14:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlty1.scm (1.12), rtlbase/rtlcon.scm (1.10),
	rtlopt/rcse1.scm (1.111): Add new invocation type for uuo-link
	invocations.

1987-07-03 14:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fggen/declar.scm (1.1): Initial revision

1987-07-02 17:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (1.11): Add new expression type
	'UUO-LINK.

1987-07-02 16:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.15): Add new file
	"alpha/declar".

1987-07-02 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/lvalue.scm (1.2): Add slot to variable objects to
	allow attachment of declarations.

1987-07-02 16:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/cgen.scm (3.4): Allow unused declarations to be passed through
	to next stage of compilation.  Fix bug that signalled warning twice
	for each such declaration at top level.

1987-07-02 16:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (13.44): Remap "Visiting->" prompt.

1987-07-02 16:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (13.43): Remap some prompts to values that look
	better in the modeline.

1987-07-01 21:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.9.1.3): Add syntax
	dependencies of rules<n> files.

1987-07-01 21:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.21.1.2): Add rules<n>
	files.

1987-07-01 21:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/insmac.scm (1.118.1.4): Typo in
	parse-word.  early -> early?

1987-07-01 17:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: inerly.scm (1.2), machin.scm
	(1.49.1.3): Done with early assembly.

1987-07-01 16:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules1.scm (1.1.1.1), rules2.scm
	(1.1.1.1), rules3.scm (1.1.1.1), rules4.scm (1.1.1.1): Done with
	early assembly.

1987-07-01 16:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: instr3.scm (1.9.1.2), lapgen.scm
	(1.179.1.2): Done with early assembly.

1987-07-01 16:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/decls.scm (1.9.1.2), base/pmerly.scm
	(1.2), base/utils.scm (1.88.1.2), machines/bobcat/insmac.scm
	(1.118.1.3), machines/bobcat/insutl.scm (1.2): Done with early
	assembly.

1987-07-01 16:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: back/syerly.scm (1.2), back/insseq.scm (1.2),
	back/syntax.scm (1.14.1.2), back/asmmac.scm (1.2.1.2),
	base/macros.scm (1.58.1.4): Done with early assembly.

1987-07-01 16:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: xform.scm (3.4.1.4), object.scm (3.1.1.3), copy.scm
	(3.5.1.2), pardec.scm (3.4.1.4): Done with expander changes.

1987-07-01 13:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ppband.c (9.26): Update to match fasl.h

1987-07-01 12:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/emodel.scm (3.2.1.2): Add intern? option to
	block/lookup-names.

1987-07-01 12:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/emodel.scm (3.2.1.1): Add intern? option to block/lookup-name.

1987-07-01 11:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/make.scm (3.10.1.1): Allocat version number.

1987-06-30 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: toplev.scm (3.4), make.scm (3.10): Change `sf' so that it
	does sticky filename defaulting when given multiple filenames.

1987-06-30 17:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (13.48): Change `load' so that it does sticky
	filename defaulting when given multiple filenames.

1987-06-30 17:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/pardec.scm (3.4.1.3): Remove PROCESS-OPERATOR declaration. 
	Brain-damage!

1987-06-30 17:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/pardec.scm (3.4.1.2): Add PROCESS-OPERATOR declaration.

1987-06-30 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.51): Change vector unparser to obey the
	variables      *unparser-list-breadth-limit*  
	*unparser-list-depth-limit* as if it were a list.

1987-06-30 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (13.44): Fix advising of internal definitions,
	which has not been updated since the changes to how internal
	definitions are scanned.

1987-06-30 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.50): Change handling of lists whose car is
	'QUOTE so that the list     (FOO QUOTE) does not print out as	   
	(FOO . (QUOTE))

1987-06-30 15:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/simapp.scm (1.2): Fix another bug -- when
	connecting procedures to vnodes the attachment must be propagated
	to the forward links.

1987-06-30 15:26  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchgcc.h (9.29): BSD has the file creation flags in a
	different include file.

1987-06-30 03:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/object.scm (3.1.1.2): Block allocation was not creating a
	large enough block.

1987-06-30 03:02  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: xform.scm (3.4.1.3), subst.scm (3.5.1.7), usiexp.scm
	(3.3.1.7): Blocks now carry environments within them.

1987-06-30 02:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: copy.scm (3.5.1.1), object.scm (3.1.1.1): Blocks now carry
	environments within them.

1987-06-29 20:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.110): When walking a pnode that
	requires the copying of the state, that state was being held onto
	longer than necessary.

1987-06-29 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.38): Add test to guarantee that all
	continuations are code generated.

1987-06-29 12:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.75): Fix two bugs in the compiled code
	interface having to do with the handling of interrupts.

1987-06-26 16:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/subst.scm (3.5.1.6): Upgrade integrate/access-operator.

1987-06-26 16:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/subst.scm (3.5.1.5): Export new definitions from
	package/integrate.

1987-06-26 16:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/usiexp.scm (3.3.1.6): Use the correct global block when
	transforming after an scode level expansion.

1987-06-26 15:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/subst.scm (3.5.1.4): Make the correct global block available
	when expanding.

1987-06-26 15:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/xform.scm (3.4.1.2): Setup xform to use the correct global
	block when expanding.

1987-06-26 14:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/usiexp.scm (3.3.1.5): Pass environment to expanders.  Bug fix.

1987-06-26 14:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: subst.scm (3.5.1.3), usiexp.scm (3.3.1.4): Pass environment
	to expanders.

1987-06-26 14:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/xform.scm (3.4.1.1): Make transform/top-level-1 take an
	optional environment argument.

1987-06-26 13:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/usiexp.scm (3.3.1.3): Pass the operator to expanders so they
	can extract the correct block.	Fix a bug.

1987-06-26 13:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/usiexp.scm (3.3.1.2): Pass the operator to expanders so they
	can extract the correct block.

1987-06-26 12:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/subst.scm (3.5.1.2): Pass the operator to expanders so they
	can extract the correct block.

1987-06-26 00:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pp.scm (13.44): Disallow *unparse-symbol integration to
	provide hook for canonicalization.

1987-06-25 22:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/sets.scm (1.2): Add some operations for new regset
	abstraction.

1987-06-25 22:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/regset.scm (1.1): Initial revision

1987-06-25 21:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gcstat.scm (13.44): Guarantee that GC notifications are
	printed with correct radix.

1987-06-25 18:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.28): Split "rtypes"
	into two parts.

1987-06-25 18:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.49): Provide a *unparse-symbol hook for
	canonicalization.  Bug in previous addition.

1987-06-25 18:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.14): Split "rtypes" into
	two parts.

1987-06-25 18:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.48): Provide a *unparse-symbol hook for
	canonicalization.

1987-06-25 07:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/insmac.scm (1.118.1.2): Syntax time
	instruction expansion.

1987-06-25 06:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/syerly.scm (1.1): Initial revision

1987-06-25 06:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/decls.scm (1.9.1.1), base/pmlook.scm
	(1.4.1.1), base/utils.scm (1.88.1.1), back/syntax.scm (1.14.1.1),
	back/regmap.scm (1.88.1.1): Syntax time instruction expansion.

1987-06-25 06:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/: back/insseq.scm (1.1), base/pmerly.scm (1.1): Initial
	revision

1987-06-25 06:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/macros.scm (1.58.1.3): Syntax time instruction
	expansion.

1987-06-25 06:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr1.scm (1.61.1.3): Syntax time
	instruction expansion.

1987-06-25 06:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/insutl.scm (1.1): Initial revision

1987-06-25 06:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: machin.scm (1.49.1.2), make.scm-68040
	(1.21.1.1): Syntax time instruction expansion.

1987-06-25 06:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.179.1.1): Syntax time
	instruction expansion.

1987-06-25 06:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/inerly.scm (1.1): Initial revision

1987-06-25 06:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/usiexp.scm (3.3.1.1): Add scode level expander capability.

1987-06-24 00:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/symtab.scm (1.42): Change abstraction to use hash
	tables, to eliminate possible quadratic behavior.

1987-06-24 00:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.89): Extend symbol hash table
	abstraction with new operations.

1987-06-24 00:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.13): Add additional
	integration dependencies for "back-end/laptop".

1987-06-23 23:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/input.scm (13.47): Make fasload default to extension bin.
	 Fix a bug in previous attempt.

1987-06-23 22:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/input.scm (13.46): Make fasload default to extension bin.

1987-06-23 18:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.74): Define new variable `Constant_Top' to
	mark the upper limit of constant space.  Do not use unallocated
	parts of constant space for the stack; the stack size is fixed at
	the beginning of time.	This fixes a bug in which the constant
	space overflowed into the stack space, without signalling any
	error.

1987-06-23 18:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: memmag.c (9.30), bchmmg.c (9.32), stack.h (9.22),
	extern.h (9.27), storage.c (9.35), default.h (9.25): Define new
	variable `Constant_Top' to mark the upper limit of constant space. 
	Do not use unallocated parts of constant space for the stack; the
	stack size is fixed at the beginning of time.  This fixes a bug in
	which the constant space overflowed into the stack space, without
	signalling any error.

1987-06-23 15:42  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* sf/: subst.scm (3.5.1.1), pardec.scm (3.4.1.1): Add sub-primitive
	expansion facility.

1987-06-22 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgproc.scm (1.5): Fix bugs in last revision.

1987-06-22 23:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.27): Generate correct code for
	combinations whose operators are unknown references.

1987-06-22 22:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgproc.scm (1.4): Generate code for
	letrec-bindings of IC procedures.

1987-06-22 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (1.8): Generator for `assignment'
	statement was using `definition-rvalue' instead of
	`assignment-rvalue' (an editing oversight).

1987-06-22 16:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.38): Change formatting of termination
	messages.

1987-06-22 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.29): Save expression register when merging
	compiled code stack blocks.

1987-06-22 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.3): In entry for IC
	procedure, equate the internal and external labels, since all
	number of argument checks are performed by the interpreter.

1987-06-22 14:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules3.scm (1.2): Generate external
	label for IC procedures.

1987-06-22 14:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgproc.scm (1.3): Generate frame-pointer
	assignment for IC procedures.

1987-06-21 10:51  allen

	* runtime/vector.scm (13.44): Remove use of 'in-package' (not
	supported by the compiler), replacing with 'local-assignment'

1987-06-19 13:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.45.1.1): Changes for VMS.

1987-06-19 13:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.73): Changes for VMS.

1987-06-19 12:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: utils.c (9.24.1.1), prims.h (9.22.1.1): VMS fix.

1987-06-19 11:53  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: config.h (9.29), interp.c (9.28), returns.h (9.26):
	Changes for VMS.

1987-06-18 18:12  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: config.h (9.28), dmpwrld.c (9.25): Some changes for
	pyramids.

1987-06-18 17:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.33), boot.c (9.37), fasdump.c (9.29),
	fhooks.c (9.24), prims.h (9.27), syntax.c (1.3), utils.c (9.32):
	Some changes for BBN and VMS.

1987-06-18 15:55  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.72): Some changes for BBN and VMS.

1987-06-18 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.27): Some changes for VMS.

1987-06-18 15:54  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/default.h (9.24): Add main_type for VMS.

1987-06-18 15:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/default.h (9.23): Add Band_Dump_Exit_Hook for
	butterflys.

1987-06-17 21:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (1.4): Add new rule.

1987-06-17 17:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: output.scm (13.45), output.scm (13.46): Fix stupid
	error in last modification.

1987-06-17 16:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unpars.scm (13.47), format.scm (13.43), output.scm
	(13.44): Add new objects to set of things that do not print. 
	Change `unparse-object' (in `unparser-package') to require its
	third argument.

1987-06-17 15:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty2.scm (1.1): Initial revision

1987-06-17 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (1.27),
	machines/bobcat/decls.scm (1.12), rtlbase/rtlty1.scm (1.10): Split
	files.

1987-06-16 22:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (1.11), make.scm-68040
	(1.26): Split files into parts.

1987-06-16 22:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: rvalue.scm (1.1), lvalue.scm (1.1): Initial
	revision

1987-06-16 21:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.71): Fix bug in purify by which the end of
	block marker was lost/garbled if it overflowed the window into the
	gc file.

1987-06-16 19:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.33): Fix bug in purify by which the end of
	block marker was lost/garbled if it overflowed the window into the
	gc file.

1987-06-16 18:43  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (13.45): `:read-string' operation for string
	input ports must move the position index when it encounters end of
	string.

1987-06-16 18:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/parse.scm (13.43): Character parser must be careful near
	end of file.

1987-06-16 00:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (9.69), version.h (9.70): [no log message]

1987-06-15 19:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.46): Correctly fix unparser to detect
	unparsing of partially marked vectors.

1987-06-15 19:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/comutl.c (1.4): Change `error_external_error' to
	correct name `error_external_return'.

1987-06-15 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (1.3): Retract last change.

1987-06-15 18:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/rules1.scm (1.2): Use
	`reference-alias-register!' in some appropriate places.  These
	places were not properly loading alias registers under certain
	circumstances.

1987-06-15 18:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn2.scm (1.2): Redefine
	`reference-alias-register!' to load the alias register rather than
	just allocating it.  This is almost always what is desired.

1987-06-15 18:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.183): In
	`indirect-reference!', need to load the alias register that is
	allocated under certain circumstances.

1987-06-15 15:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.68): Reason:	Make fasdump in bchscheme
	back out when the object being dumped is too large.  Files changed:
	  bchdmp.c   bchgcc.h	bchgcl.c   bchmmg.c   bchpur.c	 TODO

1987-06-15 15:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.32), bchgcc.h (9.28), bchgcl.c (9.30),
	bchmmg.c (9.31), bchpur.c (9.32): Make fasdump in bchscheme back
	out when the object being dumped is too large.

1987-06-15 14:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.45): Make vector unparser smarter about
	looking for nmv headers within the vector so that we do not blindly
	unparse partially marked vectors.

1987-06-15 14:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/comutl.c (1.3): Change primitives to use new type code
	for compiled-code-block.  Change print name to match one in runtime
	system.

1987-06-15 14:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (13.44): Fix logic for determining end-of-file
	in a buffered input port.

1987-06-13 17:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg3.scm (1.1), base/cfg2.scm (1.1),
	back/lapgn2.scm (1.1), back/lapgn3.scm (1.1): Initial revision

1987-06-13 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/make.scm-68040 (1.25),
	machines/bobcat/decls.scm (1.10), base/cfg1.scm (1.149),
	back/lapgn1.scm (1.37): Break up files into smaller pieces for
	compilation.

1987-06-13 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.24): Break up files
	into smaller pieces for compilation.

1987-06-13 16:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: rules1.scm (1.1), rules2.scm (1.1),
	rules3.scm (1.1), rules4.scm (1.1): Initial revision

1987-06-13 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.182): Break up file into
	smaller pieces for compilation.

1987-06-13 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.23): Initialize
	package structure.

1987-06-13 16:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.181): Missing whitespace.

1987-06-13 16:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.11): Change contents of
	`*ic-procedure-headers*' so that it can be fasdumped.

1987-06-13 16:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (1.89): Restructure packaging to
	eliminate explicit make-environment in "regmap".

1987-06-13 15:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.22): Restructure
	packaging to eliminate explicit make-environment in "regmap".

1987-06-12 23:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgcomb.scm (1.26), rgproc.scm (1.2): Decisions
	to use variable cache mechanism are raised to a higher level to
	allow special handling of IC procedure references.

1987-06-12 22:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgrval.scm (1.10), rgstmt.scm (1.7): Decisions
	to use variable cache mechanism are raised to a higher level to
	allow special handling of IC procedure references.

1987-06-12 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.25): When counting the operands of
	a combination, do not include operands which do not push any
	values.  This means that `length' is not adequate for computing the
	number of operands.  Instead use the new procedure
	`count-operands'.

1987-06-12 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.24): When generating code for
	combinations whose operator is known, use original parameters to
	that procedure to determine which operands must be pushed.

1987-06-11 18:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.67): Fix bugs in signalling of interrupts
	through the compiled code interface to the lookup code.

1987-06-11 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.31): Handle pathological error codes in
	`Do_Micro_Error'.

1987-06-11 17:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (13.48): Pass error-code to error handlers as
	well as expression, since some error handlers need to know this.

1987-06-11 16:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.180):
	`generate-invocation-prefix' now knows not to reallocate fixed
	register arguments to invocations.  In particular,
	`cache-reference-apply' accepts A3 as an argument, and under
	certain circumstances that register was being allocated as a
	temporary for the `move-frame-up' invocation.

1987-06-11 16:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.36): Add `need-registers!' operation.

1987-06-11 04:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: insmac.scm (1.118.1.1), instr1.scm
	(1.61.1.2): Rewrite effective address transformers to make them
	work at syntax time more easily.

1987-06-10 17:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/macros.scm (1.58.1.2): Definition of
	rule-result-expression has changed, and EVALUATE is now treated
	specially by the INSTRUCTIONS macro.

1987-06-10 17:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/back/asmmac.scm (1.2.1.1): Definition of
	rule-result-expression has changed.

1987-06-10 17:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/base/pmpars.scm (1.1.1.1): Add original bindings for
	transformers.

1987-06-10 17:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: instr1.scm (1.61.1.1), instr2.scm
	(1.9.1.1), instr3.scm (1.9.1.1): No qualifiers in LAP syntaxer
	rules.

1987-06-10 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.179): For `move-frame-up'
	invocation prefix, zero frame-size does not indicate that nothing
	need be done.

1987-06-10 15:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (1.49.1.1): Use INSTRUCTIONS
	and INSTRUCTION macros to facilitate rewriting the lap generation
	rules.

1987-06-10 15:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.178.1.1): Rewrite the lap
	generation rules using the INSTRUCTIONS and INSTRUCTION macros.

1987-06-10 15:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (1.58.1.1): Add INSTRUCTIONS and
	INSTRUCTION macros to rewrite the lap generation rules.

1987-06-09 15:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (1.9), make.scm-68040
	(1.21): Split some files up for compilation.

1987-06-09 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse2.scm (1.1): Initial revision

1987-06-09 15:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.109): Split into pieces for
	compilation.

1987-06-09 15:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/fgopt/: simapp.scm (1.1), outer.scm (1.1), folcon.scm
	(1.1): Initial revision

1987-06-09 14:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: interp.c (9.27), version.h (9.66): Fix bug in
	assignment to compiler cached variables.

1987-06-08 10:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.178): `load-dnw' returns a
	single instruction, not a list.

1987-06-05 17:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: xform.scm (3.4), make.scm (3.9): Must treat
	error-combination specially here to prevent block from being marked
	unsafe.

1987-06-05 16:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/gctype.c (9.23): Define new type code for compiled code
	blocks to guarantee that they are not put in pure space.

1987-06-05 16:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (13.50): Fix stupid bug where files were not
	fasloaded in `load-system!'.

1987-06-05 15:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.31): Renamed variable.

1987-06-05 14:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.65): Define new type code for compiled
	code blocks to guarantee that they are not put in pure space.

1987-06-05 14:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (13.49): New microcode handles purification of
	compiled code blocks without special treatment by the runtime
	system.

1987-06-05 13:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: utabmd.scm (9.34), purify.c (9.28), purutl.c (9.29),
	bchpur.c (9.30): Define new type code for compiled code blocks to
	guarantee that they are not put in pure space.

1987-06-05 13:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: gccode.h (9.24), types.h (9.23): Define new type code
	for compiled code blocks to guarantee that they are not put in pure
	space.

1987-06-05 12:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (13.48): Do not put compiled code into pure
	space, just constant space.  This is a temporary hack until the
	microcode is fixed to recognize compiled code blocks specially.

1987-06-05 12:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: comutl.c (1.2), utabmd.scm (9.33): Change definition
	and name of compiler address operations so that they work on all
	kinds of compiled code addresses.

1987-06-05 00:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.64): Fix a long standing bug in fasdump,
	fasload, band-dump, and band-load.  If a file write fails, a scheme
	error is reported.  Similarly if a read fails.

1987-06-05 00:13  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: extern.h (9.26), fasdump.c (9.28), fasl.h (9.24),
	fasload.c (9.27), load.c (9.23), storage.c (9.34): Fix a long
	standing bug in fasdump, fasload, band-dump, and band-load.  If a
	file write fails, a scheme error is reported.  Similarly if a read
	fails.

1987-06-05 00:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.26), ppband.c (9.25), psbtobin.c
	(9.25), bchdmp.c (9.31), boot.c (9.36), config.h (9.26), dump.c
	(9.24): Fix a long standing bug in fasdump, fasload, band-dump, and
	band-load.  If a file write fails, a scheme error is reported. 
	Similarly if a read fails.

1987-06-04 17:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/histry.scm (13.47): Fix `unfold-and-reverse-rib' so that
	it properly handles both kinds of dummy compiler reductions. 
	Previously it was only handling those that were generated by
	`New_Compiler_Subproblem' in the microcode.

1987-06-04 11:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.177): Add support for
	multiple cache-variable entries.

1987-06-03 20:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/comutl.c (1.1): Initial revision

1987-06-03 20:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/error.scm (13.47): Add error handlers for compiled code
	unbound/unassigned variable errors during lookup-apply operations.

1987-06-03 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.32): New primitive
	`return-address-block'.  Alias `return-code' for `return-address'.

1987-06-03 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.63): Create multiple cache-variable
	entries in the compiled code interface.

1987-06-02 19:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/system.scm (13.47): Bug in dumpworld.

1987-06-02 17:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.23): Change the frame-size for
	invocation:lookup to indicate the size of the frame at application
	time rather than when it executes the instruction.

1987-06-02 14:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.176): Optimize code being
	emitted for lookup-apply.

1987-06-02 14:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.48): Combination should be added to
	vnode-combinations of the operator vnode, if any.  Previously it
	was added to vnode-combinations of the combination-value,
	completely incorrect.

1987-06-02 09:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (13.47): Change unsyntaxing of `error' and
	`bkpt', which now use absolute references for the combination
	operator.

1987-06-02 09:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (13.49): Change `error' and `bkpt' macros to
	use absolute references for the operator of the expansion.

1987-06-02 08:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.62): Fix bugs in compiled code interface
	variable cache code.

1987-06-02 07:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.175): Fix bugs in rule for
	`invocation:cache-reference'.

1987-06-02 07:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (1.9): Simplify `extension' argument
	to invocation:cache-reference.

1987-06-02 07:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/histry.scm (13.46): `history-transform' was returning '()
	at the end of a chain of subproblems, instead of the value of
	`the-empty-history'.  This caused the debugger to signal an error
	when walking past the end of the history.

1987-06-02 07:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (13.46): Change unsyntaxing of conditionals to
	handle case of (if (not x) y) correctly.

1987-06-02 04:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchpur.c (9.29): Treat weak pairs correctly.

1987-06-01 20:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.30), bchgcc.h (9.27), bchgcl.c (9.29),
	bchmmg.c (9.30), bchpur.c (9.28), dump.c (9.23), fasdump.c (9.27),
	purify.c (9.27), version.h (9.61): Add fasdump and purify to
	bchscheme.

1987-06-01 17:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.174): Implement rule for
	invocation:cache-reference.

1987-06-01 17:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.22): Install better code for
	lookup-apply in the cached-variable case.  Do in-line coding of
	reference-trap type test.

1987-06-01 16:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.108): Canonicalize the destination
	of a memory assignment statement.  Rewrite the top level graph
	walker to mark nodes so that each node is walked exactly once. 
	Optimize the walking algorithm to reduce copying of the state to a
	minimum.

1987-06-01 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (1.6): Make copy of assignment to cell
	of cached variable assignment.	Otherwise the CSE cannot optimize
	because the assignment occurs at the join of two control paths.

1987-06-01 16:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.9): Make copy of assignment to
	value of cached variable reference.  Otherwise the CSE cannot
	optimize because the assignment occurs at the join of two control
	paths.

1987-06-01 12:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.60): Compiler variable cache
	initialization routines accept the offset of the constant slot as a
	memory offset (in objects) rather than as a vector index.

1987-06-01 12:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (1.49): Extend
	`rtl:expression-cost' to know about `variable-cache' expression.

1987-06-01 12:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.173): Define rules for
	cached variable reference RTL forms.

1987-06-01 12:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.8): Change
	interpreter-call:cache-reference to extract the type of the cache
	reference before testing it.  For cached variable compilations, do
	not include ic environments in the closure, it is already in the
	compiled code block.

1987-06-01 12:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (1.5): Change
	interpreter-call:cache-assignment to extract the type of the cache
	reference before testing it.

1987-06-01 12:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.107): Change
	interpreter-call:cache-assignment/reference/unassigned? to CSE
	their "name" argument.

1987-06-01 12:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/: rtlty1.scm (1.9), rtlcon.scm (1.8): Change
	interpreter-call:cache-assignment/reference/unassigned? to simplify
	their "name" argument during construction.

1987-06-01 07:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.172): Teach
	`expression->machine-register!' about (UNASSIGNED) expression.

1987-06-01 07:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (1.8): Finish changing
	`rtl:make-constant' so that it notices SCode unassigned objects.

1987-05-31 19:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: machin.scm (1.48), lapgen.scm (1.171):
	Add new RTL types for cached variable lookup mechanism.

1987-05-31 18:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.21): Change lookup-apply code to
	use variable cache when appropriate.

1987-05-31 18:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlcon.scm (1.7), rtlopt/rcse1.scm (1.106):
	Add new RTL types for cached variable lookup mechanism.

1987-05-31 18:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (1.7): Add new RTL types for cached
	variable lookup mechanism.  Change constructor for constants to
	know about unassigned object.

1987-05-31 12:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.59): Add several new compiled-code entry
	points with return addresses.

1987-05-31 12:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: utabmd.scm (9.31), interp.c (9.26), returns.h (9.25),
	storage.c (9.33): Add several new compiled-code entry points with
	return addresses.

1987-05-31 12:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.35): Redefine the Non_Object so that it is
	interned between bands.

1987-05-31 10:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (1.47): Add parameter
	describing where IC frame parameters are located within the frame.

1987-05-30 19:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.58): Sun floating arithmetic bug fixed.

1987-05-30 19:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.25): Sun floating arithmetic fixed.

1987-05-29 17:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.170), microcode/version.h
	(9.57): Split entry points block into two sections to make it
	compatible with previous version.

1987-05-29 13:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.35): Add stuff for variable cache
	entry points to interpreter.

1987-05-29 13:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgrval.scm (1.7), rgstmt.scm (1.4): Add stuff
	for variable cache entry points to interpreter.

1987-05-29 13:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/machin.scm (1.46), rtlbase/rtlcon.scm
	(1.6), rtlbase/rtlty1.scm (1.6): Add stuff for variable cache entry
	points to interpreter.

1987-05-29 13:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.169): Change compiler
	entry points to account for new microcode with variable cacheing
	entries.  Change `indirect-reference!' to allow the address part of
	an indirect register to reside in its home.

1987-05-29 13:40  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/sgraph_a.c (1.2): Undefined procedure.

1987-05-29 13:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.30): Add new return codes for compiled
	code interface variable cache.

1987-05-29 12:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (13.48): [no log message]

1987-05-29 12:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (13.47): Give better error message for badly
	formed pattern in `named-lambda'.

1987-05-29 09:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unsyn.scm (13.45): In `unsyntax-shallow-FLUID-LET', turn
	lambda body into list of actions before mapping over it.

1987-05-28 22:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: lookup.h (9.37), sdata.h (9.24), storage.c (9.32),
	trap.h (9.38), version.h (9.56): Changes to make fast variable
	reference in compiled code work: - New traps (TRAP_COMPILER_CACHED
	and dangerous).  - Support in lookup and interpret.  - Change to
	fasdump to generalize the fixed utility kludge.

1987-05-28 22:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchdmp.c (9.29), boot.c (9.34), extern.h (9.25),
	fasdump.c (9.26), fasload.c (9.26), fhooks.c (9.23), interp.c
	(9.25): Changes to make fast variable reference in compiled code
	work: - New traps (TRAP_COMPILER_CACHED and dangerous).  - Support
	in lookup and interpret.  - Change to fasdump to generalize the
	fixed utility kludge.

1987-05-28 13:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.105): Do not cache assignments from
	a machine register to a pseudo register.

1987-05-28 13:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlexp.scm (1.2): [no log message]

1987-05-28 13:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/symtab.scm (1.41): In `symbol-table-bindings',
	return alist of values rather than binding objects.

1987-05-28 12:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/symtab.scm (1.40): Add extra operation to extract
	bindings from symbol table.

1987-05-28 12:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.30): Fix randomness in switch statements for
	wrong_type_arg and bad_range_arg.

1987-05-28 12:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: returns.h (9.24), storage.c (9.31): Add entry points
	for variable caches and uuo links.

1987-05-28 08:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.25): Add JAR's changes for VMS.

1987-05-27 20:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: sgraph.h (1.1), sgraph_a.c (1.1): Initial revision

1987-05-27 20:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.55): Cosmetic change to boot.c, some
	cleaning up of hardware trap code in unix.c.

1987-05-27 20:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.33): Newline missing in end of computation
	termination.

1987-05-27 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.6): Guarantee that interpreter-call
	result registers are referenced immediately after the
	interpreter-call occurs.  Otherwise the lap generator may
	reallocate them to some other purpose.

1987-05-27 10:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/intrpt.scm (13.44): Interrupts that are out of range are
	now signalled through the last slot in the interrupt vector.

1987-05-27 10:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (9.54), boot.c (9.32), utils.c (9.29):
	Interrupts that are out of range are now signalled through the last
	slot in the interrupt vector.

1987-05-26 14:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (1.8), make.scm-68040
	(1.20): Split file into two pieces.

1987-05-26 10:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.168): Record pop in these
	rules.

1987-05-26 09:29  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/hash.scm (13.46): Patch because primitive-datum is
	broken.

1987-05-26 09:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/syntax.scm (1.14), runtime/bitstr.scm (13.43): Add
	error check for positive arguments to signed integer coercion.

1987-05-23 10:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prims.h (9.26): Add PRIMITIVE_ABORT.

1987-05-23 05:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prims.h (9.25): Add PRIMITIVE_RETURN

1987-05-21 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.167): Add special lookup
	for compiler to do side-effect for value.  Also define rules to
	handle more cases for eq-test.

1987-05-21 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.88): Define more operations on SCode
	comments.

1987-05-21 20:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlgen/rgrval.scm (1.5), rtlbase/rtlcon.scm (1.5),
	rtlbase/rtlty1.scm (1.5): Add special lookup for compiler to do
	side-effect for value.

1987-05-21 14:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (9.53), utabmd.scm (9.29), storage.c
	(9.30), returns.h (9.23): Add special lookup for compiler to do
	side-effect for value.

1987-05-21 12:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: syntax.scm (13.46), unsyn.scm (13.44): Undo FLUID-LET
	changes from last version.

1987-05-21 11:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.166): Fix bug in expansion
	of interpreter-call:enclose.  When the number of things being
	enclosed is sufficiently large, the generator was forcing the
	allocation of D0 for use as a loop counter.  This had the
	unfortunate side effect that if D0 contained some unboxed object
	then that object would be flushed to memory.

1987-05-21 11:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.15): Delete the fg-entry of each
	procedure and quotation as it is rtl-generated.  Remove the
	time-ordering of the rtl generation as the blecherous side-effect
	that required it has been removed as well.

1987-05-21 11:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (1.3): Temporary registers no longer
	have a type, and need not be handled specially for that.  Implement
	handling for value-register type.

1987-05-21 10:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.4): Temporary registers no longer
	have a type, and need not be handled specially for that.

1987-05-21 10:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.20): Install special handling for
	close-coded combinations whose target is a temporary.  Such
	combinations must be followed by code to assign the value register
	into the temporary.  Also put in error check to guarantee that this
	never happens in reduction position.

1987-05-21 10:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (1.58): Rewrite the expansion for the
	RTL construction procedures so that they in-line code correctly. 
	Previously they were lexprs, which do not integrate very well.

1987-05-19 14:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.19): Move `mvalue' to
	the `base' directory.  The `source' directory no longer exists.

1987-05-19 14:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/regmap.scm (1.88): Change
	`add-pseudo-register-alias' so that it accepts an argument
	`saved-into-home?'.  This is used to initialize the map-entry slot
	of the same name if the register has no other aliases.

1987-05-19 14:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.34): Fix `move-to-alias-register!' so
	that when an alias is reused for a register that has no other
	aliases, then that alias is marked as needing to be saved into its
	home.  Improve `reuse-pseudo-register-alias!' so that it doesn't
	generate a move instruction from a register to itself.	Fix a bug
	which prevented the clear-map instructions from being inserted when
	the next node had already been generated.

1987-05-19 09:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: unsyn.scm (13.43), syntax.scm (13.45): Change shallow
	FLUID-LET not to use side-effect for value.  This improves the
	performance of compiled code.  Also change one-armed IF and COND
	without ELSE to use new constant marker for the unused branch.

1987-05-19 09:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scode.scm (13.44): Stupidity.

1987-05-19 08:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/scode.scm (13.43): Define `undefined-conditional-branch'
	constant which is used to build two-armed IF statements and COND
	with no ELSE clause.

1987-05-18 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.7): `rcseep' no longer has
	any external definitions.

1987-05-18 19:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseep.scm (1.5): Delete definitions of most
	predicates, since they are used in one place only.  They have been
	in-line coded in the appropriate places.

1987-05-18 19:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.104): Fix the memory-invalidation
	code for assignments to memory.  Assignments to non-varying
	addresses were not invalidating the destination of the assignment! 
	This was just screwed up.

1987-05-18 19:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.18): Not so fast!

1987-05-18 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.17): Delete `rcseep'
	from the files list.

1987-05-18 13:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.33): Generalize `register-has-alias?'
	to handle machine registers also.

1987-05-18 13:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.19): Guarantee that the
	`number-pushed' entry on lexpr invocations contains the number of
	pushed operands +1 if the operator is pushed.

1987-05-18 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.165): Extend tests of
	registers to handle machine registers as well.

1987-05-18 12:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.3): Forgot to splice setup code
	into expansion for access.

1987-05-17 15:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.164): Due to changes in
	the top level of the compiler, determining the number of parameters
	of a procedure is done differently.

1987-05-16 15:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.18): For known calls to procedures
	that are not externally visible, do not pass arguments that
	correspond to parameters that are integrated in the body of the
	procedure.

1987-05-16 14:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (1.4): Typo.

1987-05-16 05:00  allen

	* compiler/machines/bobcat/lapgen.scm (1.163): Fix error in
	SETUP-LEXPR rule -- first arg to procedure-header was 'label';
	should have been 'procedure'

1987-05-15 15:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/ctypes.scm (1.47), rtlbase/rtlcon.scm (1.3),
	rtlbase/rtlty1.scm (1.4), base/utils.scm (1.87),
	machines/bobcat/lapgen.scm (1.162), back/lapgn1.scm (1.32): Change
	all RTL constructs that contain pointers to compiler internal data
	structures so that they only point to symbolic structures.  This
	means that all occurrences of continuation and procedure objects
	have been replaced by the corresponding label.	There is now a
	fairly fast map from the labels to their objects.
	
	This was done to make it possible to change the debugging file
	output routines so that they fasdump rather than writing their
	output.

1987-05-15 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgstmt.scm (1.2): Case where value-register is
	assigned during a subproblem is actually interesting.  This needs
	to be better handled sometime.

1987-05-15 14:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: intern.c (9.41), version.h (9.52), utabmd.scm (9.28):
	Implement new primitive `string-hash-mod' to enable efficient
	string/symbol hashed tables to be implemented in Scheme.

1987-05-14 09:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syntax.c (1.2), utils.c (9.28), vector.c (9.24),
	version.h (9.51): Implement new primitive argument checking
	interface and argument error signalling procedures.  Start using
	convention that macro names are all upper case.

1987-05-14 09:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bitstr.c (9.29), bitstr.h (1.2), char.c (9.22),
	fixnum.c (9.24), hooks.c (9.24), object.h (9.23), prims.h (9.24),
	string.c (9.24): Implement new primitive argument checking
	interface and argument error signalling procedures.  Start using
	convention that macro names are all upper case.

1987-05-14 06:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.31): Fix arguments to
	`reference-temporary-register!'.

1987-05-13 07:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.161): Fix broken eq-test
	generators.

1987-05-13 06:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.30): Add operation to test whether a
	register has an alias.

1987-05-11 13:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/intern.c (9.40): Add hook to symbol interning code so
	users can keep track of the symbols in the obarray.  This is
	intended to allow maintaining data structures for special purposes,
	e.g. completion of symbol names.

1987-05-11 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.50): Install new versions of Edwin syntax
	table primitives.
	
	Add hook to symbol interning code so users can keep track of the
	symbols in the obarray.  This is intended to allow maintaining data
	structures for special purposes, e.g. completion of symbol names.

1987-05-11 13:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: syntax.c (1.1), syntax.h (1.1), edwin.h (1.1):
	Initial revision

1987-05-09 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (3.8): Implement new method for mapping pathnames to
	values.  Reimplement `sfu?' flag to match documentation for
	existing optimizer.

1987-05-09 19:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (3.3): Implement new method for mapping pathnames
	to values.

1987-05-09 19:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/pthmap.scm (1.1): Initial revision

1987-05-09 16:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/usiexp.scm (3.3): [no log message]

1987-05-09 16:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: gconst.scm (3.2), usiexp.scm (3.2): Add fixnum arithmetic
	for use by compiled code.

1987-05-09 14:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fixnum.c (9.23): Change primitives to signal errors
	when arguments are of wrong type.  Change predicates to return
	normal boolean values.

1987-05-09 02:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.14): Split `generate/operand' out
	of `generate/subproblem' to facilitate rewrite of primitive
	combination open-coding routines.

1987-05-09 02:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.17): Restructure so that
	operator/operand code is generated before the combination and
	passed through.  This is because the primitive open coders will
	examine the already-generated operands to determine things about
	them.

1987-05-09 02:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.160): Add new rules for
	`eq-test', and change rule that pops into register so that it uses
	machine registers.

1987-05-09 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.28): Try a different fix for
	bignum_to_bit_string, as the other one seems to be screwing things
	up.

1987-05-09 00:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bitstr.c (9.27), version.h (9.49): Fix two bugs: (1)
	`unsigned-integer->bit-string' was not clearing out those parts of
	the result which were not filled in by copying from a bignum.  (2)
	`bit-substring-find-next-set-bit' was not correctly advancing the
	scan pointer for the last word of a multi-word string.

1987-05-08 21:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.46): Add predicates for examining a
	combination's compilation type.

1987-05-08 20:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (3.7): Exclude error-procedure combinations from the
	error generated by encountering the-environment expressions. 
	Delete `package/safe?'.

1987-05-08 20:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/copy.scm (3.5): Exclude error-procedure combinations from the
	error generated by encountering the-environment expressions.

1987-05-07 22:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (3.6): Change combination optimizations to eliminate
	bug caused by deleting unreferenced parameters.  Really need to do
	side effect analysis to perform this optimization.  Meanwhile, just
	deleting integrated parameters should be sufficient.
	
	Also flushed use of environment constructing load-system since
	auxiliary variable compilation is now fixed.

1987-05-07 22:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/pardec.scm (3.4): Add new operator to extract the integrated
	variables from a set of declarations.

1987-05-07 22:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/subst.scm (3.5): Change code that optimizes let-like
	combinations so that it only removes parameters that are declared
	integrable, rather than unreferenced parameters.  This is a
	makeshift arrangement until we can perform side effect analysis on
	the operands to determine which ones are really needed.

1987-05-07 00:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (1.29), machines/bobcat/lapgen.scm
	(1.159): Add code to keep track of items pushed and popped on the
	stack, to produce the offset between the frame-pointer and the
	stack-pointer when it is needed.  This is used to convert
	frame-pointer references into stack-pointer references.

1987-05-07 00:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.13): Guarantee that nodes are
	generated in the control flow ordering.  This is because a
	`combination-value' is converted into a `value-temporary' by a
	side-effect when the combination is generated.	So the combination
	must be generated before any references to its value are.

1987-05-07 00:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.16): The receiver-offset for
	message senders was including the pushed operands of a call.  Since
	we are now using a frame pointer, it need only include the block
	frame size.  The pushed operands will be taken care of by the LAP
	generator.

1987-05-06 20:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.16): Rewrite of RTL
	generator to new structure, now using frame pointer instead of
	stack pointer for frame references.

1987-05-06 20:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (1.45): Add frame-pointer
	register.

1987-05-06 20:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgproc.scm (1.1), rgstmt.scm (1.1): Initial
	revision

1987-05-06 20:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgcomb.scm (1.15), rgrval.scm (1.2), rtlgen.scm
	(1.12): Rewrite of RTL generator.  Flush `next-generator'
	mechanism, use multiple value return and explicit gluing of CFGs. 
	Flush offset argument, use frame-pointer instead; offset will be
	computed at LAP generation time.

1987-05-06 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseht.scm (1.3): Implement changes required by
	conversion of RTL generator to use of frame pointer.  Flush all
	special stack modeling.

1987-05-06 20:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (1.103), rcseep.scm (1.4): Implement
	changes required by conversion of RTL generator to use of frame
	pointer.  Flush all special stack modeling.

1987-05-06 20:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.86): Implement `boolean=?'.

1987-05-06 20:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlty1.scm (1.3): Add frame-pointer register.

1987-05-06 20:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcon.scm (1.2): [no log message]

1987-05-06 20:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/rtlcfg.scm (1.2): Add `frame-pointer-offset'
	slot to all rnodes, for use by lap-generator so it can convert
	frame pointer references into stack-pointer references.

1987-05-06 20:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/pmlook.scm (1.4): Split off application of result
	from main body of matcher to facilitate timing measurements.

1987-05-06 20:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.6): Change dependencies to
	account for reorganization of RTL generator into several files.

1987-05-06 20:05  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.45): Delete `continuation-delta'. 
	Add `continuation-frame-pointer-offset' for use by new
	frame-pointer code.

1987-05-06 20:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg1.scm (1.148): Implement CFG combinators that
	are generic in the latter argument.

1987-05-06 00:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/advice.scm (13.43): If a lambda expression was traced
	twice, it was being added to the advice population twice, despite
	the fact that it was already there.  However, only one copy of the
	trace advice would be installed.  Then, do untrace would cause a
	failure because the second time that the lambda expression was
	looked at it would contain no advice of that type.

1987-05-04 19:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: subst.scm (3.4), make.scm (3.5): Implement special handling
	for variables of the form 
	
	(ACCESS <name> #F)
	
	These are integrated regardless of the declarations given for the
	program.
	
	Also fix bug in `integrate/reference-operator' which caused the
	optimizer to hang in a loop.

1987-05-04 19:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: usicon.scm (3.2), usiexp.scm (3.1): Implement special
	handling for variables of the form 
	
	(ACCESS <name> #F)
	
	These are integrated regardless of the declarations given for the
	program.

1987-05-03 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.11): Split off expression stuff.

1987-05-03 16:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgrval.scm (1.1): Initial revision

1987-04-30 18:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.48): In `Keyboard_Input_Procedure', the
	test for interrupts just before calling `getchar' was only looking
	for `INT_Character'.  Expand this to include `INT_Timer' as well,
	since that was causing a problem for Mitch Resnick.  Why is this
	restricting which interrupts it looks at? A priori, I would think
	it should look at all interrupts.

1987-04-29 17:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.14): Split off handling of
	primitive combinations to another file.

1987-04-29 16:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.27): Change profile recording hook to use 32
	bit C long arithmetic rather than 24 bit fixnum arithmetic.

1987-04-29 15:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.26): Change profile recording hook to use 32
	bit C long arithmetic rather than 24 bit fixnum arithmetic.

1987-04-29 11:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.25): Define hook for recording primitive
	profiling information.

1987-04-29 11:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (13.46): Define variables to contain maximum
	primitive numbers.

1987-04-29 11:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.31): Cause generated fixed objects vector to
	have some extra slots for expansion and debugging purposes.

1987-04-29 09:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: prims.h (9.23), version.h (9.47): Add hook for
	primitive procedure profiling.

1987-04-29 09:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.27): Add PRIMITIVE-PROFILING-TABLE slot
	to fixed objects vector.

1987-04-28 12:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/fixobj.h (9.25): Add slot for table to contain
	profiling information for primitives.

1987-04-28 12:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/scheme.h (9.24): Initialize
	`ENABLE_PRIMITIVE_PROFILING' flag when debugging features are
	selected.

1987-04-27 17:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/copy.scm (3.4): Fix bug in copying of declarations, where
	variable was passed to `block/lookup-name' rather than the
	variable's name.

1987-04-27 16:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr1.scm (1.61): Turn on integration
	dependencies that were commented out here.

1987-04-27 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.5): Add integration
	dependency between the bobcat machine instruction definition files.

1987-04-27 16:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.15): Do not use the
	"load" package any longer.  Defaultly load some compiled files.

1987-04-27 13:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/system.scm (13.46): Flush junk to put compiled code in
	constant space rather than pure space.	New compiler doesn't need
	that.

1987-04-27 12:28  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.13): Change `apply-stack' prefix to
	subtract 1 from the n-levels, because the innermost stack frame
	does not have a message receiver pushed.

1987-04-27 10:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.158):
	`make-non-pointer-literal' was not being careful to handle negative
	`datum' values correctly, resulting in the type code of the literal
	being off by one.

1987-04-25 16:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bitstr.c (9.26), vector.c (9.23): Install new
	primitives.

1987-04-25 16:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.h (1.1): Initial revision

1987-04-25 16:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (9.46), utabmd.scm (9.26): Install new
	primitives for vectors and bit strings.

1987-04-25 16:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: bitstr.scm (13.42), vector.scm (13.43): Install new
	built-in primitives for microcode 9.46.

1987-04-25 16:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/gconst.scm (3.1): Add new primitives for microcode 9.46.

1987-04-25 05:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: output.scm (13.43), unpars.scm (13.44): Fix IO
	redirection bug.

1987-04-24 10:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.28): Change rules database so that it
	is sorted by statement-type.  Treat ASSIGN specially since it is by
	far the most common type.

1987-04-24 10:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (1.102), rcseep.scm (1.3), rcserq.scm
	(1.2): Change state implementation so that register quantities are
	allocated on demand.

1987-04-24 09:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: pp.scm (13.43), sdata.scm (13.43), unpars.scm (13.43):
	Change stack parser, unparser, and pretty-printer to handle
	reference-trap objects specially, detecting them before they get
	assigned to variables, and printing them in a reasonable way.

1987-04-22 06:09  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseht.scm (1.2): Rewrite `hash-table-copy' so
	that it is O(n) instead of O(n^2) in the number of elements.

1987-04-22 05:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/decls.scm (1.4): Forgot to add "rtlcon"
	and "rtlexp" to the integration dependency set.

1987-04-21 19:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/pmlook.scm (1.3): Change structure of closing block
	to aid compilation.

1987-04-21 19:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: decls.scm (1.3), make.scm-68040
	(1.14): Split `front-end/rtl' into two files to aid compilation.

1987-04-21 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlbase/: rtlcon.scm (1.1), rtlexp.scm (1.1): Initial
	revision

1987-04-21 19:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.45): A variety of small changes related to
	the GC out of space error.

1987-04-21 12:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.12): Allow constant combinations to
	have any temporary as a target.

1987-04-21 11:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (9.24): Change string_to_symbol to compute the
	correct argument to Primitive_GC.  Previously it was using (Memtop
	- Free) which could have been negative (and we saw at least one
	case where something like that had happened).

1987-04-21 11:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/interp.c (9.24): Change some error messages to go out
	to stderr.

1987-04-21 11:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/memmag.c (9.29): Cause all GCs to return through the
	return code RC_NORMAL_GC_DONE.

1987-04-21 11:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/storage.c (9.29): Initialize `GC_Space_Needed' to a
	reasonable value.

1987-04-21 10:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bchmmg.c (9.29): Cause all GCs to return through the
	return code RC_NORMAL_GC_DONE.

1987-04-21 10:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.44): Define new per-combination flag
	which indicates whether or not the combination has been
	constant-folded.

1987-04-21 10:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.11): Solution to constant folding
	problem is overly conservative.  Earlier change (which guaranteed
	that the combination-value became unknown when the operator or
	operands were) is sufficient.

1987-04-20 08:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.44): Update the version: release.

1987-04-20 08:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.43): Update the version: release.

1987-04-17 20:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.10): When building a closure frame,
	do not attempt to lookup variables which are integrated, as it will
	cause an error.  This is probably not needed given the change which
	has been made elsewhere which deletes such variables from the
	closure block previous to this point.

1987-04-17 20:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.43): Change the analysis performed to
	determine whether a variable has been assigned.  Do not treat
	auxiliary bindings specially, except those that have been
	identified as having constant or procedure values.
	
	This unfortunately produces less efficient code, but guarantees
	that there will be no troubles with the order of events when
	creating closures.

1987-04-17 20:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.10): If a combination's value is
	constant, do not replace it by the constant value, because we have
	no side-effect analyzer to determine whether that is safe.

1987-04-17 20:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (13.43): `goto-command', when selecting a
	subproblem with no reductions, tried to set the reduction number to
	1, rather than 0.  This previously "worked" because
	
		(list-ref '() 1) ==> '()
	
	instead of signalling an error as it now does.

1987-04-17 11:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/psbtobin.c (9.24): Accommodate VMS (bug in VMS 4
	scanf).

1987-04-17 06:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.157): Add new rules for
	cases which arise when dead-code-elimination phase is not
	performed.

1987-04-17 06:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (1.27), machines/bobcat/make.scm-68040
	(1.13): [no log message]

1987-04-17 06:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcompr.scm (1.1), rdebug.scm (1.1): Initial
	revision

1987-04-17 06:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rlife.scm (1.56): Split into three files to aid
	in compilation.

1987-04-17 06:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/decls.scm (1.2), base/macros.scm
	(1.57), base/pmlook.scm (1.2): [no log message]

1987-04-17 06:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.42): Two bugs:
	
	1. When searching the formals list in `extend_frame', the variable
	`scan' was not being incremented.
	
	2. The primitive procedure `lexical-unassigned?' should signal an
	error if the argument variable is unbound.

1987-04-17 03:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: pmlook.scm (1.1), pmpars.scm (1.1): Initial
	revision

1987-04-17 03:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.9): Forgot to add one (for GC
	header) to vector-ref index when open-coding.

1987-04-17 03:38  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.85): External primitives are not safe.

1987-04-17 00:03  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.41): [no log message]

1987-04-16 23:50  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.25): Prim_bit_string_zero_p had 2 as its
	arity rather than 1, causing the stack to get out of sync.

1987-04-16 20:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/boot.scm (13.43): Eliminate use of `mapcar', clean up
	some other things too.

1987-04-16 20:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/histry.scm (13.45): Loop which was walking around
	reductions used `eq?' to test for termination.	Because the
	arguments to `eq?' were variables, the variable lookup code was
	stripping the danger bits off of the values.  The new microcode
	does not do this so it was necessary to explicitly strip the danger
	bits off in the appropriate places.

1987-04-16 20:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/findprim.c (9.24): Patch to accommodate a bug in the
	4.2 bsd vax C compiler.

1987-04-16 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prim.c (9.25): Primitive-type returns "safe" types.

1987-04-16 11:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bintopsb.c (9.25): Eliminate reference to TC_STRING

1987-04-16 10:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bchdmp.c (9.28): Declare external procedure
	Make_Prim_Exts.

1987-04-16 10:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (9.40), fasdump.c (9.25), primutl.c (9.40):
	Move Make_Prim_Exts to primutl.c.

1987-04-16 08:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/sysprim.c (9.22): Make built-in primitive table be
	generated automatically.

1987-04-15 22:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: usrdef.h (9.36), utabmd.scm (9.25), utils.c (9.23),
	vector.c (9.22), version.h (9.39), winder.h (9.22): Make built in
	primitive tables be generated automatically.  Attempt to fix
	OS_read_char_ready on bsd.  Some changes for VMS.

1987-04-15 22:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: purutl.c (9.28), returns.h (9.22), scheme.h (9.23),
	sdata.h (9.23), stack.h (9.21), step.c (9.22), storage.c (9.28),
	string.c (9.23), trap.h (9.37): Make built in primitive tables be
	generated automatically.  Attempt to fix OS_read_char_ready on bsd.
	 Some changes for VMS.

1987-04-15 22:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: interp.h (9.23), list.c (9.23), load.c (9.22),
	lookup.h (9.36), memmag.c (9.28), mul.c (9.22), bitstr.c (9.24),
	object.h (9.22), prim.c (9.24), prim.h (9.36), prims.h (9.22),
	purify.c (9.26): Make built in primitive tables be generated
	automatically.	Attempt to fix OS_read_char_ready on bsd.  Some
	changes for VMS.

1987-04-15 22:21  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.25), fixnum.c (9.22), flonum.c (9.22),
	future.c (9.22), gccode.h (9.23), generic.c (9.22), history.h
	(9.22), hooks.c (9.23), hunk.c (9.22), intercom.c (9.22), interp.c
	(9.23): Make built in primitive tables be generated automatically. 
	Attempt to fix OS_read_char_ready on bsd.  Some changes for VMS.

1987-04-15 22:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: char.c (9.21), config.h (9.24), const.h (9.24),
	daemon.c (9.24), debug.c (9.24), default.h (9.22), dmpwrld.c
	(9.24), extern.c (9.22), extern.h (9.24), fasdump.c (9.24): Make
	built in primitive tables be generated automatically.  Attempt to
	fix OS_read_char_ready on bsd.	Some changes for VMS.

1987-04-15 22:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bkpt.h (9.23), boot.c (9.30): Make built in primitive
	tables be generated automatically.  Attempt to fix
	OS_read_char_ready on bsd.  Some changes for VMS.

1987-04-15 22:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.24), findprim.c (9.23), psbtobin.c
	(9.23), array.h (9.22), bchdmp.c (9.27), bchgcl.c (9.28), bchmmg.c
	(9.28), bchpur.c (9.27), bignum.c (9.23): Make built in primitive
	tables be generated automatically.  Attempt to fix
	OS_read_char_ready on bsd.  Some changes for VMS.

1987-04-15 22:01  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: primutl.c (9.39), intern.c (9.39): [no log message]

1987-04-15 01:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (13.45): Change error messages so that error
	message truncation does not discard interesting information.

1987-04-13 19:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.84): Add `set-current-history!' to
	list of unsafe primitives.

1987-04-13 15:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.83): Delete `extended-fixnum' type.

1987-04-13 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (13.46), io.scm (13.45), gcstat.scm (13.43),
	rep.scm (13.42), system.scm (13.45): [no log message]

1987-04-13 14:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (13.44): Update `object-type' to reflect
	changes in the type tables.

1987-04-11 21:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.9): Forgot to wrap `fetch' around
	reference to stack pointer register.

1987-04-11 20:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/lapgen.scm (1.156),
	spectrum/lapgen.scm (1.137): There are two kinds of "stack"
	procedure, which can be distinguished by whether or not the parent
	frame of the procedure is a stack frame.  Split these two and
	handle them separately.  See "emodel" for details about the new
	classifications.

1987-04-11 20:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlbase/rtlty1.scm (1.2), rtlopt/rcse1.scm (1.101),
	rtlgen/rgcomb.scm (1.8), rtlgen/rtlgen.scm (1.8): There are two
	kinds of "stack" procedure, which can be distinguished by whether
	or not the parent frame of the procedure is a stack frame.  Split
	these two and handle them separately.  See "emodel" for details
	about the new classifications.

1987-04-11 12:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dmpwrld.c (9.23): Use a new version of GNU Emacs's
	unexec, and make it work on Suns.

1987-04-11 11:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/unexec.c (9.21): Use a newer version from GNU Emacs.

1987-04-11 11:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasload.c (9.24), bignum.h (9.23): The encore's cpp
	doesn't like => in strings.

1987-04-11 11:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.38): Better conditionalization for
	dumpworld.

1987-04-11 10:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/pagesize.h (9.38): [no log message]

1987-04-09 17:04  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.37): Various changes to make it run on the
	hp9000s500.

1987-04-09 11:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/dmpwrld.c (9.22): Add sun3 support.

1987-04-08 08:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/string.c (9.22): Fix casting bug which prevented it
	from compiling on the hp9000s500.

1987-04-07 12:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/bitstr.c (9.23): The 500's compiler complains if a
	(bigdigit *) is not cast to  (Pointer *) before using Make_Pointer
	on it.

1987-04-06 08:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.36): Change in lookup because of vax
	compiler bug, and fix of poetential bug in bignums.

1987-04-06 08:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bignum.c (9.22), bignum.h (9.22): Fix potential bug
	in Big_To_Fix.

1987-04-06 07:03  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/trap.h (9.36): Macroize ILLEGAL_OBJECT becuase of
	compiler bug on the vax.

1987-04-02 19:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: error.scm (13.45), histry.scm (13.44), sdata.scm
	(13.42), syntax.scm (13.44), system.scm (13.44), utabs.scm (13.43):
	Changes to match the rewrite of the variable lookup code in the
	microcode and a few minor bug fixes.

1987-04-02 19:46  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: trap.h (9.35), lookup.h (9.35), usrdef.h (9.35),
	prim.h (9.35): Rewrite of the variable lookup code and slight
	tuning of the interpreter.

1987-04-02 19:43  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fhooks.c (9.22): Rewrite of the variable lookup code
	and slight tuning of the interpreter.

1987-04-02 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: sdata.h (9.22), storage.c (9.27), types.h (9.22),
	utabmd.scm (9.24), utils.c (9.22), version.h (9.35): Rewrite of
	variable lookup code and some tuning of the interpreter.

1987-04-02 19:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: memmag.c (9.27), object.h (9.21), prim.c (9.23),
	prims.h (9.21), purify.c (9.25), purutl.c (9.27), scheme.h (9.22),
	scode.h (9.22): Rewrite of variable lookup code and some tuning of
	the interpreter.

1987-04-02 19:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: hooks.c (9.22), interp.c (9.22), interp.h (9.22),
	list.c (9.22): Rewrite of variable lookup code and some tuning of
	the interpreter.

1987-04-02 19:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: errors.h (9.24), extern.h (9.23), fasdump.c (9.23),
	fasl.h (9.23), fasload.c (9.23), fixobj.h (9.24), gc.h (9.22),
	gccode.h (9.22), gcloop.c (9.24), gctype.c (9.22): Rewrite of
	variable lookup code and some tuning of the interpreter.

1987-04-02 19:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: boot.c (9.29), config.h (9.23), const.h (9.23),
	daemon.c (9.23), debug.c (9.23), dump.c (9.22): Rewrite of variable
	lookup code and some tuning of the interpreter.

1987-04-02 19:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.23), findprim.c (9.22), ppband.c
	(9.24), psbtobin.c (9.22), bchgcl.c (9.27), bchmmg.c (9.27), bkpt.h
	(9.22): Rewrite of variable lookup code and some tuning of the
	interpreter.

1987-03-20 19:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/chtype.scm (1.1): Initial revision

1987-03-20 18:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: cgen.scm (3.3), copy.scm (3.3), subst.scm (3.3), xform.scm
	(3.3), make.scm (3.4): Change semantics of procedure's name so that
	it is not considered to be a bound variable.

1987-03-20 00:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.12): Load `macros'
	into the correct package.
	
	Implement changes to close mutually-recursive procedures correctly.

1987-03-20 00:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.82): Add some more scode operations.

1987-03-20 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.7): Generate internal definitions
	differently.  Now the procedure keeps track of mutually-recursive
	internal definitions, which must have their closure frames
	specially constructed in case there are cycles in the
	environment/procedure graph.

1987-03-20 00:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.155): Add a rule which
	implements consing of unassigned objects.

1987-03-20 00:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.100): For interpreter calls, all
	pseudo registers are assumed to be pushed on the stack, and must
	therefore contain Scheme objects.  When one of these operations is
	encountered, invalidate all expressions whose values are not
	objects.

1987-03-20 00:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcseep.scm (1.2): Add `expression-not-object?',
	which is true of any expression whose result is not a Scheme
	object.

1987-03-19 18:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.42): Definitions are side-effects to
	the variable also.

1987-03-19 18:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.41): Keep track of the number of
	side-effects to a variable.  Somehow this code was lost.

1987-03-19 12:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/toplev.scm (3.2): Do something reasonable if the externs file
	does not exist.

1987-03-19 12:19  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/pardec.scm (3.3): The `integrate-primitive-procedures'
	declaration was looking up the name twice, resulting in a variable
	whose name was another variable.

1987-03-18 19:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (1.3): Reorganize code for
	new directory structure.  Break some large useful files into
	smaller ones that can be compiled.  Delete all `using-syntax'
	occurrences and `Edwin Variables'.

1987-03-18 19:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/insmac.scm (1.118), bobcat/instr1.scm
	(1.60), bobcat/instr2.scm (1.9), bobcat/instr3.scm (1.9),
	bobcat/lapgen.scm (1.154), bobcat/machin.scm (1.44),
	bobcat/make.scm-68040 (1.11), spectrum/assmd.scm (1.29),
	spectrum/coerce.scm (1.4), spectrum/lapgen.scm (1.136),
	spectrum/machin.scm (1.41): Reorganize code for new directory
	structure.  Break some large useful files into smaller ones that
	can be compiled.  Delete all `using-syntax' occurrences and `Edwin
	Variables'.

1987-03-18 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/asmmac.scm (1.2), back/lapgn1.scm (1.26),
	back/regmap.scm (1.87), back/symtab.scm (1.39), back/syntax.scm
	(1.13), machines/bobcat/assmd.scm (1.29),
	machines/bobcat/coerce.scm (1.7): Reorganize code for new directory
	structure.  Break some large useful files into smaller ones that
	can be compiled.  Delete all `using-syntax' occurrences and `Edwin
	Variables'.

1987-03-18 19:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcseep.scm (1.1), rcseht.scm (1.1), rcserq.scm
	(1.1), rcsesr.scm (1.1): Initial revision

1987-03-18 19:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: rtlopt/ralloc.scm (1.10), rtlopt/rcse1.scm (1.99),
	rtlgen/rgcomb.scm (1.7), rtlopt/rlife.scm (1.55), rtlgen/rtlgen.scm
	(1.6): Reorganize code for new directory structure.  Break some
	large useful files into smaller ones that can be compiled.  Delete
	all `using-syntax' occurrences and `Edwin Variables'.

1987-03-18 19:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: machines/bobcat/decls.scm (1.1), base/object.scm
	(1.1), rtlbase/rtlcfg.scm (1.1), rtlbase/rtlreg.scm (1.1),
	rtlbase/rtlty1.scm (1.1), base/sets.scm (1.1): Initial revision

1987-03-18 19:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: cfg1.scm (1.147), ctypes.scm (1.40), macros.scm
	(1.56), utils.scm (1.81): Reorganize code for new directory
	structure.  Break some large useful files into smaller ones that
	can be compiled.  Delete all `using-syntax' occurrences and `Edwin
	Variables'.

1987-03-18 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/pardec.scm (3.2): The info stored in operations is 2-valued
	and must be separated into its components before being changed to
	the external representation.

1987-03-18 15:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/gc.scm (13.43): Making suspend-world reset! the primitive
	io system on restart.

1987-03-18 15:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/io.scm (13.44): Adding reset! to primitive io for the
	benefit of disk-restore.

1987-03-17 13:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: vector.scm (13.42), where.scm (13.42): Change runtime
	system so that a lambda's name is not considered a bound variable. 
	Eliminate all references to `#!false' and `#!true'.  Eliminate
	`canonicalize-filename-string', since pathname parsing is now
	system-dependent.  Install new quasiquote expander which does
	vectors.  Teach `eqv?' to handle null length vectors.  Eliminate
	`make-package' special form.

1987-03-17 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: parse.scm (13.42), pp.scm (13.42), scode.scm (13.42),
	scomb.scm (13.42), syntax.scm (13.43), system.scm (13.43),
	unsyn.scm (13.42), unxpth.scm (1.2): Change runtime system so that
	a lambda's name is not considered a bound variable.  Eliminate all
	references to `#!false' and `#!true'.  Eliminate
	`canonicalize-filename-string', since pathname parsing is now
	system-dependent.  Install new quasiquote expander which does
	vectors.  Teach `eqv?' to handle null length vectors.  Eliminate
	`make-package' special form.

1987-03-17 13:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (13.42), debug.scm (13.42), equals.scm
	(13.42), error.scm (13.44), events.scm (13.42), format.scm (13.42),
	gcstat.scm (13.42), histry.scm (13.43), input.scm (13.43),
	intrpt.scm (13.43), lambda.scm (13.42): Change runtime system so
	that a lambda's name is not considered a bound variable.  Eliminate
	all references to `#!false' and `#!true'.  Eliminate
	`canonicalize-filename-string', since pathname parsing is now
	system-dependent.  Install new quasiquote expander which does
	vectors.  Teach `eqv?' to handle null length vectors.  Eliminate
	`make-package' special form.

1987-03-12 23:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: cgen.scm (3.2), copy.scm (3.2), emodel.scm (3.2), free.scm
	(3.2), make.scm (3.3), object.scm (3.1), pardec.scm (3.1),
	subst.scm (3.2), tables.scm (3.1), toplev.scm (3.1), usicon.scm
	(3.1), xform.scm (3.2): Externs files now are dumped in an internal
	form rather than by converting them to SCode first.  This speeds up
	the process of re-interning them.
	
	Also, `sf' now maintains a database which allows the user to
	programmatically specify syntax table and global declarations on a
	per-filename basis.  This is used to eliminate `using-syntax' and
	`integrate-external' occurrences in each file.

1987-03-12 12:48  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/utabmd.scm (9.23): Add RELOAD-BAND-NAME.

1987-03-12 12:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (9.34), fasload.c (9.22), storage.c (9.26):
	Add RELOAD-BAND-NAME.

1987-03-12 09:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: fasl.h (9.22), bintopsb.c (9.22): Remove
	compatibility with older versions of fasl files.

1987-03-11 21:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/input.scm (13.42): Rename read-char-ready? to char-ready?
	as required by R^3RS.

1987-03-11 21:19  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/system.scm (13.42): Add init file.

1987-03-11 21:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/unxpth.scm (1.1): Initial revision

1987-03-11 21:16  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/pathnm.scm (13.42): Split pathnm.scm into OS independent
	and OS dependent part for portability.

1987-03-11 02:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/debug.c (9.22): OS_tty_tyi now returns ints.

1987-03-11 02:33  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/storage.c (9.25): Eliminate some fossil primitives from
	io.c

1987-03-11 02:32  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.33): Update unknown.c, flush fossil io.c
	and minor OS changes.

1987-03-10 09:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: cgen.scm (3.1), copy.scm (3.1), subst.scm (3.1), xform.scm
	(3.1): Add integrate-external declaration.

1987-03-10 09:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/: emodel.scm (3.1), free.scm (3.1), make.scm (3.2): Add
	integrate-external declaration.

1987-03-10 09:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.32): Changes to unix.c and vms.c

1987-03-10 08:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/make.scm (3.1): Eliminate references to "beta".

1987-03-10 08:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* sf/cgen.scm (3.0), sf/copy.scm (3.0), sf/emodel.scm (3.0),
	sf/free.scm (3.0), sf/gconst.scm (3.0), sf/make.scm (3.0),
	compiler/base/mvalue.scm (3.0), sf/object.scm (3.0), sf/pardec.scm
	(3.0), sf/subst.scm (3.0), sf/tables.scm (3.0), sf/toplev.scm
	(3.0), sf/usicon.scm (3.0), sf/usiexp.scm (3.0), sf/xform.scm
	(3.0): [no log message]

1987-03-09 18:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.31): Make the microcode work on the Vax.

1987-03-09 11:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/boot.c (9.28): Oops... losing typo.

1987-03-09 10:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/utabs.scm (13.42): Change to use named slots for
	microcode-identification table.

1987-03-09 09:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: fixobj.h (9.23), utabmd.scm (9.22): Add new microcode
	table: Identification_Vector.

1987-03-09 09:23  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: boot.c (9.27), version.h (9.30): Add new entries to
	ID vector: OS name and OS variant.

1987-03-07 12:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/emacs.scm (13.42): When doing (read-char) from the
	terminal, check for any characters in the input buffer before
	asking Emacs to read one.

1987-03-07 06:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.29): Fix read-char-ready? for hpux.

1987-02-27 16:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/syntax.scm (13.42): Change error signalling of
	declaration processing procedures so that they can be called from
	outside of the syntaxer.

1987-02-20 08:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (13.42): Change SCode variable objects to
	unparse their name as an object rather than a symbol, so as to
	distinguish between uninterned and interned symbols.

1987-02-15 11:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (9.28), boot.c (9.26): Add a -utabmd
	command line option to Scheme.

1987-02-15 10:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/wind.scm (13.42): Change name of
	`compilable-primitive-functions' and
	`compilable-primitive-variables' to be
	`integrate-primitive-procedures'.

1987-02-15 10:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: error.scm (13.43), gc.scm (13.42), hash.scm (13.45),
	histry.scm (13.42), intrpt.scm (13.42), io.scm (13.43), output.scm
	(13.42): Change name of `compilable-primitive-functions' and
	`compilable-primitive-variables' to be
	`integrate-primitive-procedures'.

1987-02-15 08:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (1.2): Upgrade to match new
	compiler.

1987-02-15 08:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (1.135): Various typos.

1987-02-13 04:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/machin.scm (1.40): Upgrade spectrum
	back end to reflect changes in compiler since original
	implementation.

1987-02-13 04:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/lapgen.scm (1.134): Upgrade spectrum
	back end to reflect changes in compiler since original
	implementation.

1987-02-12 04:30  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hash.scm (13.44): [no log message]

1987-02-12 04:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/hash.scm (13.43): Use `modulo' rather than `remainder' to
	compute index of bucket in the hash table.  Reorganize code
	presentation.

1987-02-11 20:18  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchpur.c (9.26), bchdmp.c (9.26): Entry for bchscheme
	(scheme with garbage collector to disk) added.

1987-02-11 20:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bchgcl.c (9.26), bchmmg.c (9.26), bchgcc.h (9.26):
	Entry for bchscheme (scheme with garbage collector to disk) added.

1987-02-11 19:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.98): Add new method for
	`unassigned-test' predicate type.

1987-02-11 17:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rtlgen.scm (1.5): Rvalue expander for `access'
	was unable to expand its environment component because it needed to
	know whether the ultimate result was an SCFG or a PCFG. 
	Reorganized `rvalue->expression' so that this information was
	available.

1987-02-11 13:09  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ppband.c (9.23): [no log message]

1987-02-10 21:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/list.scm (13.42): Move list primitives to `boot.scm'
	because the compiler can't compile the `in-package' that used to be
	in `list.scm' to perform this function.
	
	Also, change the implementation of a few of the list operations to
	make them compile more efficiently (at the expense of space in some
	cases).

1987-02-10 21:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/boot.scm (13.42): Move list primitives to `boot.scm'
	because the compiler can't compile the `in-package' that used to be
	in `list.scm' to perform this function.

1987-02-10 19:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (9.27): When sending `apply-closure' message
	to a `subproblem' receiver, the receiver was left on the stack. 
	Change so that it is removed instead.

1987-02-10 17:45  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/ppband.c (9.22): Added an option to print heaps when
	given the relevant parameters from the command line.

1987-02-10 17:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (1.43): Fix incorrect
	subproblem receiver size.

1987-02-09 18:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (13.42): Fix bug where radix passed explicitly
	to `string->number' was ignored.

1987-02-08 19:37  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/purutl.c (9.26): Split purify.c into purify.c and
	purutl.c 

1987-02-08 19:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: purify.c (9.24), version.h (9.26), storage.c (9.24):
	Split purify.c into purify.c and purutl.c 

1987-02-08 18:08  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: extern.h (9.22), gcloop.c (9.23): Redo some extern
	declarations for new garbage collector.

1987-02-08 18:05  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: version.h (9.25), purify.c (9.23), memmag.c (9.26):
	Redo some extern declarations for new garbage collector.

1987-02-08 07:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/memmag.c (9.25): Unnecessary and incorrect
	reinitialization of Weak_Chain.

1987-02-07 10:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.24): Various trivial changes for the
	garbage collector to disk.

1987-02-07 10:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: errors.h (9.23), boot.c (9.25): Add TERM_SIGNAL for
	unix.c

1987-02-07 10:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/memmag.c (9.24): Various changes to accomodate the
	garbage collector to disk.

1987-02-07 10:23  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.24): Add Reset_Memory to accomodate the
	garbage collector to disk.

1987-02-05 16:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/lapgn1.scm (1.25): Upgrade spectrum back end to
	reflect changes in compiler since original implementation.  This
	found some machine-dependent sections of the "machine-independent"
	code.

1987-02-04 12:51  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.23): Some BBN changes afer the last merge.

1987-02-04 12:50  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/config.h (9.22): Remove comments around definition of
	BELL.

1987-02-04 12:49  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/const.h (9.22): BBN changes after the last merge. 
	Conditionalize STACK_GUARD_SIZE.

1987-02-04 12:47  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bitstr.c (9.22), string.c (9.21): Small changes due
	to "bugs" in the C compiler used by BBN.

1987-02-03 11:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/memmag.c (9.23): Some primitives have changed homes.

1987-02-03 11:00  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/storage.c (9.23): Some primitives have changed homes.

1987-02-03 10:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/prim.c (9.22): gc-type has drifted here.

1987-02-03 10:59  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/boot.c (9.23): Clear_Memory and Setup_Memory have
	drifted to memmag.c

1987-02-03 10:58  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.22): New version.  Memory management
	redistribution.

1987-02-03 10:57  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/purify.c (9.22): get-next-constant is now in this file.
	 Redistributed.

1987-02-03 10:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/fasdump.c (9.22): [no log message]

1987-02-03 10:56  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/gcloop.c (9.22): Redistribution.  gcloop now only
	contains the gcloop procedure.

1987-02-02 10:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/version.h (9.21): [no log message]

1987-02-02 10:15  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: utils.c (9.21), daemon.c (9.22), utabmd.scm (9.21),
	fixobj.h (9.22), storage.c (9.22), boot.c (9.22), errors.h (9.22):
	[no log message]

1987-02-02 09:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: io.scm (13.42), hash.scm (13.42), error.scm (13.42):
	New version.  Object hashing and file closing use weak pointers so
	the daemons can be written in Scheme and need not look at old space
	after a GC.

1987-01-22 19:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: stream.scm (13.41), string.scm (13.41), syntax.scm
	(13.41), sysclk.scm (13.41), system.scm (13.41), unpars.scm
	(13.41), unsyn.scm (13.41), utabs.scm (13.41), vector.scm (13.41),
	where.scm (13.41), wind.scm (13.41): [no log message]

1987-01-22 19:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: pathnm.scm (13.41), pp.scm (13.41), qsort.scm (13.41),
	rep.scm (13.41), scan.scm (13.41), scode.scm (13.41), scomb.scm
	(13.41), sdata.scm (13.41), sfile.scm (13.41): [no log message]

1987-01-22 19:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: histry.scm (13.41), input.scm (13.41), intrpt.scm
	(13.41), io.scm (13.41), lambda.scm (13.41), list.scm (13.41),
	msort.scm (13.41), numpar.scm (13.41), output.scm (13.41),
	parse.scm (13.41): [no log message]

1987-01-22 19:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: datime.scm (13.41), debug.scm (13.41), emacs.scm
	(13.41), equals.scm (13.41), error.scm (13.41), events.scm (13.41),
	format.scm (13.41), gc.scm (13.41), gcstat.scm (13.41), gensym.scm
	(13.41), hash.scm (13.41): [no log message]

1987-01-22 19:07  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: advice.scm (13.41), bitstr.scm (13.41), boot.scm
	(13.41), char.scm (13.41): [no log message]

1987-01-22 09:34  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: pruxfs.c (9.21), vector.c (9.21), winder.h (9.21),
	xdebug.c (9.21), zones.h (9.21): Add RCS headers and update
	copyright notices.

1987-01-22 09:31  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: scheme.h (9.21), scode.h (9.21), sdata.h (9.21),
	step.c (9.21), storage.c (9.21), sysprim.c (9.21), psbmap.h (9.21),
	types.h (9.21): Add RCS headers and update copyright notices.

1987-01-22 09:28  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: locks.h (9.21), missing.c (9.21), mul.c (9.21),
	bitstr.c (9.21), prim.c (9.21), purify.c (9.21), returns.h (9.21),
	sample.c (9.21): Add RCS headers and update copyright notices.

1987-01-22 09:25  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: flonum.c (9.21), future.c (9.21), futures.h (9.21),
	gc.h (9.21), gccode.h (9.21), gcloop.c (9.21), gctype.c (9.21),
	generic.c (9.21), history.h (9.21), hooks.c (9.21), hunk.c (9.21),
	image.c (9.21), image.h (9.21), intercom.c (9.21), interp.c (9.21),
	interp.h (9.21), list.c (9.21), load.c (9.21): Add RCS headers and
	update copyright notices.

1987-01-22 09:22  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: config.h (9.21), const.h (9.21), daemon.c (9.21),
	debug.c (9.21), default.h (9.21), dump.c (9.21), dmpwrld.c (9.21),
	errors.h (9.21), extern.c (9.21), extern.h (9.21), fasdump.c
	(9.21), fasl.h (9.21), fasload.c (9.21), fft.c (9.21), fhooks.c
	(9.21), fixnum.c (9.21), fixobj.h (9.21): Add RCS headers and
	update copyright notices.

1987-01-22 09:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: wsize.c (9.21), array.c (9.21), array.h (9.21),
	bignum.c (9.21), bignum.h (9.21), bkpt.c (9.21), bkpt.h (9.21),
	boot.c (9.21): Add RCS headers and update copyright notices.

1987-01-22 09:10  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.21), breakup.c (9.21), findprim.c
	(9.21), ppband.c (9.21), psbtobin.c (9.21): Add RCS headers and
	update copyright notices.

1987-01-21 16:44  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: unsyn.scm (13.40), utabs.scm (13.40), vector.scm
	(13.40), where.scm (13.40), wind.scm (13.40): Merge with BBN

1987-01-21 16:41  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: qsort.scm (13.40), rep.scm (13.40), scan.scm (13.40),
	scode.scm (13.40), scomb.scm (13.40), sdata.scm (13.40), sfile.scm
	(13.40), stream.scm (13.40), string.scm (13.40), syntax.scm
	(13.40), sysclk.scm (13.40), system.scm (13.40), unpars.scm
	(13.40): Merge with BBN

1987-01-21 16:38  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: gc.scm (13.40), gcstat.scm (13.40), gensym.scm (13.40),
	hash.scm (13.40), histry.scm (13.40), input.scm (13.40), intrpt.scm
	(13.40), io.scm (13.40), lambda.scm (13.40), list.scm (13.40),
	msort.scm (13.40), numpar.scm (13.40), output.scm (13.40),
	parse.scm (13.40), pathnm.scm (13.40), pp.scm (13.40): Merge with
	BBN

1987-01-21 16:35  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* runtime/: advice.scm (13.40), bitstr.scm (13.40), boot.scm
	(13.40), char.scm (13.40), datime.scm (13.40), debug.scm (13.40),
	emacs.scm (13.40), equals.scm (13.40), error.scm (13.40),
	events.scm (13.40), format.scm (13.40): Merge with BBN

1987-01-21 15:30  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: vector.c (9.20), version.h (9.20), winder.h (9.20),
	xdebug.c (9.20), zones.h (9.20): Merge with BBN

1987-01-21 15:27  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: step.c (9.20), storage.c (9.20), string.c (9.20),
	sysprim.c (9.20), psbmap.h (9.20), types.h (9.20), unexec.c (9.20),
	pruxfs.c (9.20), utabmd.scm (9.20), utils.c (9.20): Merge with BBN

1987-01-21 15:24  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: missing.c (9.20), mul.c (9.20), bitstr.c (9.20),
	object.h (9.20), prim.c (9.20), prims.h (9.20), purify.c (9.20),
	returns.h (9.20), sample.c (9.20), scheme.h (9.20), scode.h (9.20),
	sdata.h (9.20), stack.h (9.20): Merge with BBN

1987-01-21 15:20  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: futures.h (9.20), gc.h (9.20), gccode.h (9.20),
	gcloop.c (9.20), gctype.c (9.20), generic.c (9.20), history.h
	(9.20), hooks.c (9.20), hunk.c (9.20), image.c (9.20), image.h
	(9.20), intercom.c (9.20), interp.c (9.20), interp.h (9.20), list.c
	(9.20), load.c (9.20), locks.h (9.20): Merge with BBN

1987-01-21 15:17  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: const.h (9.20), daemon.c (9.20), debug.c (9.20),
	default.h (9.20), dump.c (9.20), dmpwrld.c (9.20), errors.h (9.20),
	extern.c (9.20), extern.h (9.20), fasdump.c (9.20), fasl.h (9.20),
	fasload.c (9.20), fft.c (9.20), fhooks.c (9.20), fixnum.c (9.20),
	fixobj.h (9.20), flonum.c (9.20), future.c (9.20): Merge with BBN

1987-01-21 15:14  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bignum.h (9.20), bkpt.c (9.20), bkpt.h (9.20), boot.c
	(9.20), char.c (9.20), config.h (9.20): Merge with BBN

1987-01-21 15:11  Guillermo J. Rozas <gjr@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (9.20), breakup.c (9.20), findprim.c
	(9.20), ppband.c (9.20), psbtobin.c (9.20), wsize.c (9.20), array.c
	(9.20), array.h (9.20), bignum.c (9.20): Merge with BBN

1987-01-14 21:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/debug.scm (1.84): `debug' had a hack where it used an
	uninterned symbol with a null print name to cause the "procedure
	name" field of the H command to be blank.  When the printed
	representation of uninterned symbols changed, this ceased to work. 
	Fixed by using `*the-non-printing-object*' instead.

1987-01-13 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: string.c (5.4), char.c (5.3): Change macro
	`Real_To_Upper' to procedure `char_upcase'; similarly for
	`char_downcase'.  This fixes a class of problems such as:
	
		(Real_To_Upper (*scan++))

1987-01-13 13:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (1.2), runtime/utabs.scm (1.23): The
	microcode tables file now returns an identification string as a
	value so that it can be determined what version is loaded.

1987-01-13 13:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utabmd.scm (1.1): Initial revision

1987-01-13 13:14  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (5.10): Remove version number from
	`UCODE_TABLES_FILENAME', to simplify distribution.  This may cause
	synchronization problems later!

1987-01-12 12:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/utils.c (5.2): Please refer to the ChangeLog file under
	the following entry for this log message, which is too long for RCS
	to handle at present:
	
	Mon Jan 12 17:11:49 1987  Chris Hanson	(cph at kleph)

1987-01-12 12:17  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: object.h (5.3), prims.h (5.2), string.c (5.3): Please
	refer to the ChangeLog file under the following entry for this log
	message, which is too long for RCS to handle at present:
	
	Mon Jan 12 17:11:49 1987  Chris Hanson	(cph at kleph)

1987-01-12 12:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/char.c (5.2): Moby rewrite, which started out as some
	simple bug fixes.  Interesting points:
	
	* New alternative names for some basic macros:
	
	Type_Code --> pointer_type Datum --> pointer_datum
	
	* New predicates for certain types:
	
	fixnum_p character_p string_p
	
	* `Primitive_Error' and `Primitive_Interrupt' close-coded to save
	space.	For extra savings, the following new procedures are
	available (where N ranges from 1 to 10):
	
	void error_wrong_type_arg_N () void error_bad_range_arg_N () void
	error_external_return ()
	
	* M

1987-01-11 08:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: string.c (5.2), version.h (5.9): Fix
	`substring-find-next-char-in-set' and
	`substring-find-previous-char-in-set', which were losing on
	characters with the #x80 bit set in the usual way.

1987-01-11 04:08  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (5.8): Primitive `file-write-char' was unable
	to write out the character #\M-Rubout, because of the standard
	problem.

1987-01-09 23:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.153): Oops!  Forgot to
	push return address for subproblems.  What a loser.

1987-01-09 22:12  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.152): Finish changes to
	poppers.

1987-01-09 19:29  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.151): Change type offsets
	to 16-byte intervals to match new microcode.

1987-01-09 18:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.150): Fix oversight in new
	popper code.

1987-01-09 16:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.149): Fix typo and adjust
	message receiver type bits to correct values.

1987-01-09 15:21  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (5.7): [no log message]

1987-01-09 15:16  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.148): Update popper
	offsets to match new microcode.

1987-01-09 14:42  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.147): Change popper code
	to interpretive version to prevent screw with 68020 instruction
	cache.

1987-01-09 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/machin.scm (1.42): Change sizes of
	message receivers to reflect new interpretive implementation.

1987-01-08 19:06  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/unpars.scm (1.69): Add special unparsing for pairs.

1987-01-08 17:39  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (1.6): Fix bug in parsing of complex polar
	notation.

1987-01-07 13:40  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/numpar.scm (1.5): [no log message]

1987-01-07 13:35  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (5.6), interp.c (5.2): Define `TC_COMPLEX'
	to self-evaluate.

1987-01-07 12:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: numpar.scm (1.4), unpars.scm (1.68): Add complex number
	syntax to reader and printer.

1987-01-06 15:22  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/stack.h (5.2): Turn off stack overflow interrupt during
	throw.

1987-01-05 13:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (5.5): [no log message]

1987-01-05 13:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/const.h (5.2): Boost STACK_GUARD_SIZE to value which
	will allow stack overflow interrupt to work correctly.

1987-01-05 12:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/gc.scm (1.92): Local stack overflow interrupt index
	incorrect.

1987-01-04 21:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.146): Revert previous
	change since experiment proved that this was not the source of the
	bug being tracked down.  Leave in the other bug fix which
	apparently never was used before.

1987-01-04 21:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.145): Try not to generate
	instructions that depend on the order in which effective address
	evaluation occurs.

1987-01-04 12:13  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/version.h (5.4): [no log message]

1987-01-01 14:41  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (1.24), machines/bobcat/lapgen.scm
	(1.144): [no log message]

1987-01-01 14:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.6): [no log message]

1987-01-01 13:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.80): Eliminate references to
	`make-primitive-procedure'.

1987-01-01 13:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgcomb.scm (1.5), rtlgen.scm (1.4): Pass
	`rest-generator' as argument to all the generator quanta rather
	than fluid-binding it to prevent infinite recursion problem.

1987-01-01 11:55  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/macros.scm (1.55): [no log message]

1986-12-22 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.79): Change tagged vector object
	unparser so that the printing of a hash number for the object can
	be suppressed.	This is useful for writing out RTL files because it
	makes it easier to compare before and after changes.

1986-12-22 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/rgcomb.scm (1.4): Fix bug in value of
	`number-pushed' being computed for stack calls.

1986-12-21 18:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.97): [no log message]

1986-12-21 14:46  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.143): [no log message]

1986-12-21 14:33  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg1.scm (1.146), base/ctypes.scm (1.39),
	back/lapgn1.scm (1.23), rtlgen/rgcomb.scm (1.3), rtlgen/rtlgen.scm
	(1.3): [no log message]

1986-12-21 09:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg1.scm (1.145), base/ctypes.scm (1.38),
	back/lapgn1.scm (1.22), base/macros.scm (1.54), rtlgen/rtlgen.scm
	(1.2), base/utils.scm (1.78): [no log message]

1986-12-20 18:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg1.scm (1.144), back/lapgn1.scm (1.21),
	rtlgen/rgcomb.scm (1.2), rtlopt/rlife.scm (1.54),
	machines/bobcat/lapgen.scm (1.142), machines/bobcat/make.scm-68040
	(1.10): [no log message]

1986-12-20 17:59  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/instr1.scm (1.59): Change obsolete
	reference to `vector-size'.

1986-12-20 17:53  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlgen/: rgcomb.scm (1.1), rtlgen.scm (1.1): Initial
	revision

1986-12-20 17:51  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg1.scm (1.143), base/ctypes.scm (1.37),
	back/lapgn1.scm (1.20), base/macros.scm (1.53), rtlopt/ralloc.scm
	(1.9), rtlopt/rcse1.scm (1.96), rtlopt/rlife.scm (1.53),
	base/utils.scm (1.77): Redesign of CFG data structures.

1986-12-19 20:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/output.scm (1.33): Update to use new primitive
	`tty-flush-output'.  Requires microcode 9.12 or later.

1986-12-19 20:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: version.h (5.3), storage.c (5.2): Implement new
	primitive `tty-flush-output'.

1986-12-18 08:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.141): [no log message]

1986-12-18 07:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/: rcse1.scm (1.95), rlife.scm (1.52): Fix
	algorithm so that it handles CFG joins correctly.

1986-12-18 07:07  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg1.scm (1.142): Eliminate definitions of
	`foo-edit!' procedures.  Redesign `node-replace!' procedures.

1986-12-18 01:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rlife.scm (1.51): Change implementation of
	`rtl-snode-delete!' so that it is more careful about connecting and
	disconnecting nodes from one another.

1986-12-18 01:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: back/lapgn1.scm (1.19), back/regmap.scm (1.86),
	base/utils.scm (1.76): Change names of set operations to indicate
	whether they use `eq?' or `eqv?' to determine membership. 
	Eliminate multiple copies of various such operations.

1986-12-17 22:37  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.36): Fix bug in `continuation-entry'.

1986-12-17 22:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg1.scm (1.141): Delete non-useful frame editor
	procedures.

1986-12-17 14:32  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/: cfg1.scm (1.140), ctypes.scm (1.35): Change
	call-construction pass so that it uses special frame editing
	procedures rather than modifying the CFGs and then attempting to
	write them back into their frames.  This prevents attempts to
	relink them before they have been unlinked from the holding frames.

1986-12-17 13:26  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/bignum.c (5.3): Same random confusion between `=' and
	`=='!  C Sux.

1986-12-17 03:02  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.75): Move `po' back to `toplev.scm'. 
	Implement `->tagged-vector' and `tagged-vector?' to aid in building
	good debugging tools.

1986-12-17 03:00  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.94): Fix incorrect definition of
	`define-assignment-method'.

1986-12-17 02:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg1.scm (1.139): Fix problem in which hooks were
	getting dis/connected multiple times.  Required changing
	implementation of `hooks-union'.  Also, add error checking to the
	dis/connect operations to detect this lossage.

1986-12-17 01:34  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bignum.h (5.3), config.h (5.2), object.h (5.2):
	Changes to make FIXNUM_LENGTH_AS_BIGNUM visible to cpp.

1986-12-17 00:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bignum.c (5.2), bignum.h (5.2), version.h (5.2):
	Bignum code was not handling most negative fixnum right.  Altering
	definition of FIXNUM_LENGTH_AS_BIGNUM, plus some extra care in
	Big_To_Fix, should solve this.

1986-12-16 18:52  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.74): Use user-level hash operators
	rather than primitives.

1986-12-16 18:49  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.73): Change `po' to accept a hash
	number as an argument and print the unhash of that.

1986-12-16 18:47  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/ctypes.scm (1.34): Rewrite side-effecting
	operations on continuation cfg fields to perform side-effects on
	the sframe rather than the continuation.

1986-12-16 18:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/cfg1.scm (1.138): Implement replacement operations
	on frames.  Implement SCFG insertion operation.  Implement
	:DESCRIBE methods for frames and holders.

1986-12-16 15:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: scheme.h (5.1), scode.h (5.1), sdata.h (5.1), stack.h
	(5.1), step.c (5.1), storage.c (5.1), string.c (5.1), sysprim.c
	(5.1), psbmap.h (5.1), types.h (5.1), unexec.c (5.1), pruxfs.c
	(5.1), utils.c (5.1), vector.c (5.1), version.h (5.1), winder.h
	(5.1), xdebug.c (5.1), zones.h (5.1): initial revision

1986-12-16 15:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* microcode/: bintopsb.c (5.1), breakup.c (5.1), findprim.c (5.1),
	ppband.c (5.1), psbtobin.c (5.1), wsize.c (5.1), array.c (5.1),
	array.h (5.1), bignum.c (5.1), bignum.h (5.1), bkpt.c (5.1), bkpt.h
	(5.1), boot.c (5.1), char.c (5.1), config.h (5.1), const.h (5.1),
	daemon.c (5.1), debug.c (5.1), default.h (5.1), dump.c (5.1),
	dmpwrld.c (5.1), errors.h (5.1), extern.c (5.1), extern.h (5.1),
	fasdump.c (5.1), fasl.h (5.1), fasload.c (5.1), fft.c (5.1),
	fhooks.c (5.1), fixnum.c (5.1), fixobj.h (5.1), flonum.c (5.1),
	future.c (5.1), futures.h (5.1), gc.h (5.1), gccode.h (5.1),
	gcloop.c (5.1), gctype.c (5.1), generic.c (5.1), history.h (5.1),
	hooks.c (5.1), hunk.c (5.1), image.c (5.1), image.h (5.1),
	intercom.c (5.1), interp.c (5.1), interp.h (5.1), list.c (5.1),
	load.c (5.1), locks.h (5.1), missing.c (5.1), mul.c (5.1), bitstr.c
	(5.1), object.h (5.1), prim.c (5.1), prims.h (5.1), purify.c (5.1),
	returns.h (5.1), sample.c (5.1): initial revision

1986-12-16 14:36  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: equals.scm (1.10), list.scm (1.64): Convert `or' to
	`if' where the value is a boolean.

1986-12-16 13:20  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/symtab.scm (1.38): Add `using-syntax' to grab
	compiler syntax.

1986-12-16 01:27  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/lapgen.scm (1.140): Fix type-extraction
	rules to use ROL instruction rather than LSR.

1986-12-16 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.72): Fix print wrapper to print hash
	number correctly.

1986-12-16 01:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/symtab.scm (1.37): Add new operation to extract the
	set of undefined names.

1986-12-16 01:24  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/rtlopt/rcse1.scm (1.93): Make sure that the stack
	pointer gets invalidated whenever it is changed.  Previously it was
	not explicitly invalidated when a push happened.

1986-12-15 22:01  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: utabs.scm (1.22), vector.scm (1.27), where.scm (1.93),
	wind.scm (1.89): initial revision

1986-12-15 21:58  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: lambda.scm (1.50), list.scm (1.63), msort.scm (1.6),
	numpar.scm (1.3), output.scm (1.32), parse.scm (1.103), pathnm.scm
	(1.44), pp.scm (1.188), qsort.scm (1.6), rep.scm (1.363), scan.scm
	(1.15), scode.scm (1.311), scomb.scm (1.38), sdata.scm (1.31),
	sfile.scm (1.4), stream.scm (1.53), string.scm (1.32), syntax.scm
	(1.236), sysclk.scm (1.5), system.scm (1.15), unpars.scm (1.67),
	unsyn.scm (1.240): initial revision

1986-12-15 21:57  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: intrpt.scm (1.68), io.scm (1.36): initial

1986-12-15 21:56  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/input.scm (1.49): foo

1986-12-15 21:54  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: hash.scm (1.27), histry.scm (1.69): [no log message]

1986-12-15 21:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: events.scm (1.5), format.scm (1.31), gc.scm (1.91),
	gcstat.scm (1.14), gensym.scm (1.4): [no log message]

1986-12-15 21:45  Chris Hanson <cph@zurich.ai.mit.edu>

	* runtime/: advice.scm (1.83), bitstr.scm (1.27), boot.scm (1.124),
	char.scm (1.36), datime.scm (1.6), debug.scm (1.83), emacs.scm
	(1.3), equals.scm (1.9), error.scm (1.164): [no log message]

1986-12-15 16:44  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/base/utils.scm (1.71): Add hash number to printed
	representation of compiler data structures to facilitate debugging.

1986-12-15 00:48  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/: lapgen.scm (1.139), machin.scm (1.41),
	make.scm-68040 (1.9): [no log message]

1986-12-15 00:25  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg1.scm (1.137), base/ctypes.scm (1.33),
	back/lapgn1.scm (1.18), rtlopt/ralloc.scm (1.8), rtlopt/rcse1.scm
	(1.92), back/regmap.scm (1.85), rtlopt/rlife.scm (1.50),
	base/utils.scm (1.70): [no log message]

1986-12-13 13:10  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.8): Update to know
	about RCS header.

1986-12-13 12:31  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/bobcat/make.scm-68040 (1.7): Remove version
	numbers from filenames.

1986-12-13 12:18  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/spectrum/make.scm (1.1): Initial revision

1986-12-13 12:15  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/machines/: bobcat/assmd.scm (1.28), bobcat/coerce.scm
	(1.6), bobcat/insmac.scm (1.117), bobcat/instr1.scm (1.58),
	bobcat/instr2.scm (1.8), bobcat/instr3.scm (1.8), bobcat/lapgen.scm
	(1.138), bobcat/machin.scm (1.40), bobcat/make.scm-68040 (1.6),
	spectrum/assmd.scm (1.28), spectrum/coerce.scm (1.3),
	spectrum/lapgen.scm (1.133), spectrum/machin.scm (1.39): [no log
	message]

1986-12-13 12:11  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/: base/cfg1.scm (1.136), base/ctypes.scm (1.32),
	back/lapgn1.scm (1.17), base/macros.scm (1.52), rtlopt/ralloc.scm
	(1.7), rtlopt/rcse1.scm (1.91), back/regmap.scm (1.84),
	rtlopt/rlife.scm (1.49), back/symtab.scm (1.36), back/syntax.scm
	(1.12), base/utils.scm (1.69): [no log message]

1986-12-13 12:04  Chris Hanson <cph@zurich.ai.mit.edu>

	* compiler/back/asmmac.scm (1.1): Initial revision

