diff options
| author | Ulrich Drepper <drepper@redhat.com> | 1997-04-17 15:10:04 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 1997-04-17 15:10:04 +0000 |
| commit | dd33e89fb2693e88ba64e6b947184c5abf70ff00 (patch) | |
| tree | 3a621cf04df476aa6dd7905c41e77e8133baae3e /sysdeps/m68k/fpu/feholdexcpt.c | |
| parent | 7799b7b3350fdcadc6dfb8821fb49b7772c96701 (diff) | |
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/feholdexcpt.c')
| -rw-r--r-- | sysdeps/m68k/fpu/feholdexcpt.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/m68k/fpu/feholdexcpt.c b/sysdeps/m68k/fpu/feholdexcpt.c new file mode 100644 index 0000000000..351fa8ae75 --- /dev/null +++ b/sysdeps/m68k/fpu/feholdexcpt.c @@ -0,0 +1,39 @@ +/* Store current floating-point environment and clear exceptions. + 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. */ + +#include <fenv.h> + +int +feholdexcept (fenv_t *envp) +{ + fexcept_t fpcr, fpsr; + + /* Store the environment. */ + __asm__ ("fmovem%.l %/fpcr/%/fpsr,%0" : "=m" (*envp)); + + /* Now clear all exceptions. */ + fpsr = envp->status_register & ~FE_ALL_EXCEPT; + __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); + /* And set all exceptions to non-stop. */ + fpcr = envp->control_register & ~(FE_ALL_EXCEPT << 5); + __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr)); + + return 1; +} |