glibc/sysdeps/hppa/fpu/fsetexcptflg.c
Andreas Jaeger 41bdb6e20c Update to LGPL v2.1.
2001-07-06  Paul Eggert  <eggert@twinsun.com>

	* manual/argp.texi: Remove ignored LGPL copyright notice; it's
	not appropriate for documentation anyway.
	* manual/libc-texinfo.sh: "Library General Public License" ->
	"Lesser General Public License".

2001-07-06  Andreas Jaeger  <aj@suse.de>

	* All files under GPL/LGPL version 2: Place under LGPL version
	2.1.
2001-07-06 04:58:11 +00:00

42 lines
1.4 KiB
C

/* Set floating-point environment exception handling.
Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Huggins-Daines <dhd@debian.org>, 2000
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.h>
#include <math.h>
int
fesetexceptflag (const fexcept_t *flagp, int excepts)
{
unsigned int sw[2];
/* Get the current status word. */
__asm__ ("fstd %%fr0,0(%1)" : "=m" (*sw) : "r" (sw));
/* Install the new exception flags bits. */
sw[0] &= ~(excepts & (FE_ALL_EXCEPT >> 27));
sw[0] |= (*flagp & excepts & FE_ALL_EXCEPT) << 27;
/* Store the new status word. */
__asm__ ("fldd 0(%0),%%fr0" : : "r" (sw));
/* Success. */
return 0;
}