patch-2.4.20 linux-2.4.20/arch/mips64/math-emu/dp_fint.c
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- Lines: 79
- Date:
Wed Dec 31 16:00:00 1969
- Orig file:
linux-2.4.19/arch/mips64/math-emu/dp_fint.c
- Orig date:
Mon Jul 2 13:56:40 2001
diff -urN linux-2.4.19/arch/mips64/math-emu/dp_fint.c linux-2.4.20/arch/mips64/math-emu/dp_fint.c
@@ -1,78 +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 "ieee754dp.h"
-
-ieee754dp ieee754dp_fint(int x)
-{
- COMPXDP;
-
- CLEARCX;
-
- if (x == 0)
- return ieee754dp_zero(0);
- if (x == 1 || x == -1)
- return ieee754dp_one(x < 0);
- if (x == 10 || x == -10)
- return ieee754dp_ten(x < 0);
-
- xs = (x < 0);
- if (xs) {
- if (x == (1 << 31))
- xm = ((unsigned) 1 << 31); /* max neg can't be safely negated */
- else
- xm = -x;
- } else {
- xm = x;
- }
-
-#if 1
- /* normalize - result can never be inexact or overflow */
- xe = DP_MBITS;
- while ((xm >> DP_MBITS) == 0) {
- xm <<= 1;
- xe--;
- }
- return builddp(xs, xe + DP_EBIAS, xm & ~DP_HIDDEN_BIT);
-#else
- /* normalize */
- xe = DP_MBITS + 3;
- while ((xm >> (DP_MBITS + 3)) == 0) {
- xm <<= 1;
- xe--;
- }
- DPNORMRET1(xs, xe, xm, "fint", x);
-#endif
-}
-
-ieee754dp ieee754dp_funs(unsigned int u)
-{
- if ((int) u < 0)
- return ieee754dp_add(ieee754dp_1e31(),
- ieee754dp_fint(u & ~(1 << 31)));
- return ieee754dp_fint(u);
-}
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