mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-25 20:21:07 +00:00
9b8a727776
feholdexcept. * sysdeps/alpha/fpu/feholdexcpt.c: Add libm_hidden_def. * sysdeps/alpha/fpu/fesetround.c: Likewise. * sysdeps/generic/feholdexcpt.c: Likewise. * sysdeps/generic/fesetround.c: Likewise. * sysdeps/i386/fpu/feholdexcpt.c: Likewise. * sysdeps/i386/fpu/fesetround.c: Likewise. * sysdeps/ia64/fpu/feholdexcpt.c: Likewise. * sysdeps/ia64/fpu/fesetround.c: Likewise. * sysdeps/powerpc/fpu/feholdexcpt.c: Likewise. * sysdeps/powerpc/fpu/fesetround.c: Likewise. * sysdeps/s390/fpu/feholdexcpt.c: Likewise. * sysdeps/s390/fpu/fesetround.c: Likewise. * sysdeps/sh/sh4/fpu/feholdexcpt.c: Likewise. * sysdeps/sh/sh4/fpu/fesetround.c: Likewise. * sysdeps/sparc/fpu/feholdexcpt.c: Likewise. * sysdeps/sparc/fpu/fesetround.c: Likewise. * sysdeps/x86_64/fpu/feholdexcpt.c: Likewise. * sysdeps/x86_64/fpu/fesetround.c: Likewise. * sysdeps/generic/s_significand.c (__significand): Use __ilogb not ilogb. * sysdeps/generic/s_significandf.c (__significandf): Use __ilogbf not ilogbf.
44 lines
1.4 KiB
C
44 lines
1.4 KiB
C
/* Set current rounding direction.
|
|
Copyright (C) 1997, 2000, 2005 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson <rth@tamu.edu>, 1997
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <fenv_libc.h>
|
|
|
|
int
|
|
fesetround (int round)
|
|
{
|
|
unsigned long fpcr;
|
|
|
|
if (round & ~3)
|
|
return 1;
|
|
|
|
/* Get the current state. */
|
|
__asm__ __volatile__("excb; mf_fpcr %0" : "=f"(fpcr));
|
|
|
|
/* Set the relevant bits. */
|
|
fpcr = ((fpcr & ~FPCR_ROUND_MASK)
|
|
| ((unsigned long)round << FPCR_ROUND_SHIFT));
|
|
|
|
/* Put the new state in effect. */
|
|
__asm__ __volatile__("mt_fpcr %0; excb" : : "f"(fpcr));
|
|
|
|
return 0;
|
|
}
|
|
libm_hidden_def (fesetround)
|