patch-2.4.20 linux-2.4.20/arch/mips64/math-emu/dp_tint.c
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- Lines: 89
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
linux-2.4.19/arch/mips64/math-emu/dp_tint.c
- Orig date:
Mon Jul 2 13:56:41 2001
diff -urN linux-2.4.19/arch/mips64/math-emu/dp_tint.c linux-2.4.20/arch/mips64/math-emu/dp_tint.c
@@ -1,88 +0,0 @@
-/* IEEE754 floating point arithmetic
- * double precision: common utilities
- */
-/*
- * MIPS floating point support
- * Copyright (C) 1994-2000 Algorithmics Ltd. All rights reserved.
- * http://www.algor.co.uk
- *
- * ########################################################################
- *
- * This program is free software; you can distribute it and/or modify it
- * under the terms of the GNU General Public License (Version 2) as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * ########################################################################
- */
-
-
-#include <linux/kernel.h>
-#include "ieee754dp.h"
-
-int ieee754dp_tint(ieee754dp x)
-{
- COMPXDP;
-
- CLEARCX;
-
- EXPLODEXDP;
-
- switch (xc) {
- case IEEE754_CLASS_SNAN:
- case IEEE754_CLASS_QNAN:
- SETCX(IEEE754_INVALID_OPERATION);
- return ieee754si_xcpt(ieee754si_indef(), "fixdp", x);
- case IEEE754_CLASS_INF:
- SETCX(IEEE754_OVERFLOW);
- return ieee754si_xcpt(ieee754si_indef(), "fixdp", x);
- case IEEE754_CLASS_ZERO:
- return 0;
- case IEEE754_CLASS_DNORM: /* much to small */
- SETCX(IEEE754_UNDERFLOW);
- return ieee754si_xcpt(0, "fixdp", x);
- case IEEE754_CLASS_NORM:
- break;
- }
- if (xe >= 31) {
- SETCX(IEEE754_OVERFLOW);
- return ieee754si_xcpt(ieee754si_indef(), "fix", x);
- }
- if (xe < 0) {
- SETCX(IEEE754_UNDERFLOW);
- return ieee754si_xcpt(0, "fix", x);
- }
- /* oh gawd */
- if (xe > DP_MBITS) {
- xm <<= xe - DP_MBITS;
- } else if (xe < DP_MBITS) {
- /* XXX no rounding
- */
- xm >>= DP_MBITS - xe;
- }
- if (xs)
- return -xm;
- else
- return xm;
-}
-
-
-unsigned int ieee754dp_tuns(ieee754dp x)
-{
- ieee754dp hb = ieee754dp_1e31();
-
- /* what if x < 0 ?? */
- if (ieee754dp_lt(x, hb))
- return (unsigned) ieee754dp_tint(x);
-
- return (unsigned) ieee754dp_tint(ieee754dp_sub(x, hb)) |
- ((unsigned) 1 << 31);
-}
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