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authorUlrich Drepper <drepper@redhat.com>1997-04-17 15:10:04 +0000
committerUlrich Drepper <drepper@redhat.com>1997-04-17 15:10:04 +0000
commitdd33e89fb2693e88ba64e6b947184c5abf70ff00 (patch)
tree3a621cf04df476aa6dd7905c41e77e8133baae3e /sysdeps/m68k/fpu/s_remquo.c
parent7799b7b3350fdcadc6dfb8821fb49b7772c96701 (diff)
downloadglibc-dd33e89fb2693e88ba64e6b947184c5abf70ff00.tar.gz
Update.
1997-04-17 16:55 Ulrich Drepper <drepper@cygnus.com> * misc/libgen.h: Change prototype for of basename to XPG variant. * stdlib/Makefile (routines): Add xpg_basename. * stdlib/basename.c: New file. * string/string.h: Don't declare basename function if basename macro is available. 1997-04-16 17:33 Miles Bader <miles@gnu.ai.mit.edu> * login/utmp_file.c (proc_utmp_eq): Only use ut_id field if valid. 1997-04-15 12:47 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * sysdeps/m68k/fpu/fclrexcpt.c: New file. * sysdeps/m68k/fpu/fenvbits.h: New file. * sysdeps/m68k/fpu/fegetenv.c: New file. * sysdeps/m68k/fpu/fegetround.c: New file. * sysdeps/m68k/fpu/fesetenv.c: New file. * sysdeps/m68k/fpu/fesetround.c: New file. * sysdeps/m68k/fpu/feupdateenv.c: New file. * sysdeps/m68k/fpu/fgetexcptflg.c: New file. * sysdeps/m68k/fpu/fraiseexcpt.c: New file. * sysdeps/m68k/fpu/fsetexcptflg.c: New file. * sysdeps/m68k/fpu/ftestexcept.c: New file. * sysdeps/m68k/fpu/mathbits.h: New file. * sysdeps/m68k/fpu/s_remquo.c: New file. * sysdeps/m68k/fpu/s_remquol.c: New file. * sysdeps/m68k/fpu/s_remquof.c: New file. * sysdeps/libm-ieee754/s_roundl.c: Restore integer bit when mantissa overflows into exponent. Fix priority of >> vs +. * math/libm-test.c (basic_tests): Use the appropriate isnan and isinf function to test the value of the nan function. 1997-04-15 13:40 Ulrich Drepper <drepper@cygnus.com> * sysdeps/libm-i387/s_finite.S: Fix typo. * sysdeps/i386/fpu/__math.h: Add optimized versions of isgreater, isgreaterequal, isless, islessequal, islessgreater, and isunordered.
Diffstat (limited to 'sysdeps/m68k/fpu/s_remquo.c')
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diff --git a/sysdeps/m68k/fpu/s_remquo.c b/sysdeps/m68k/fpu/s_remquo.c
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+/* Compute remainder and a congruent to the quotient. m68k fpu version
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#define __LIBC_M81_MATH_INLINES
+#include <math.h>
+
+#ifndef SUFF
+#define SUFF
+#endif
+#ifndef float_type
+#define float_type double
+#endif
+
+#define CONCATX(a,b) __CONCAT(a,b)
+#define s(name) CONCATX(name,SUFF)
+
+float_type
+s(__remquo) (float_type x, float_type y, int *quo)
+{
+ float_type result;
+ int cquo, fpsr;
+
+ /* FIXME: Which of frem and fmod is correct? */
+#if 1
+ __asm ("frem%.x %2,%0\n\tfmove%.l %/fpsr,%1"
+ : "=f" (result), "=dm" (fpsr) : "f" (y), "0" (x));
+ cquo = (fpsr >> 16) & 0x7f;
+ if ((result > 0) != (x > 0))
+ cquo--;
+#else
+ __asm ("fmod%.x %2,%0\n\tfmove%.l %/fpsr,%1"
+ : "=f" (result), "=dm" (fpsr) : "f" (y), "0" (x));
+ cquo = (fpsr >> 16) & 0x7f;
+#endif
+ if (fpsr & (1 << 23))
+ cquo = -cquo;
+ *quo = cquo;
+ return result;
+}
+#define weak_aliasx(a,b) weak_alias(a,b)
+weak_aliasx (s(__remquo), s(remquo))