2012-04-17 02:02:27 +00:00
|
|
|
/* Set floating-point environment exception handling.
|
2017-01-01 00:14:16 +00:00
|
|
|
Copyright (C) 1997-2017 Free Software Foundation, Inc.
|
2012-04-17 02:02:27 +00:00
|
|
|
This file is part of the GNU C Library.
|
|
|
|
|
Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999.
|
|
|
|
|
|
|
|
|
|
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
|
2012-04-17 02:10:24 +00:00
|
|
|
License along with the GNU C Library; if not, see
|
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
2012-04-17 02:02:27 +00:00
|
|
|
|
|
|
|
|
#include <fenv.h>
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
fesetexceptflag (const fexcept_t *flagp, int excepts)
|
|
|
|
|
{
|
|
|
|
|
fenv_t fpsr;
|
|
|
|
|
|
|
|
|
|
/* Get the current exception state. */
|
|
|
|
|
__asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
|
|
|
|
|
|
|
|
|
|
fpsr &= ~(((fenv_t) excepts & FE_ALL_EXCEPT) << 13);
|
|
|
|
|
|
|
|
|
|
/* Set all the bits that were called for. */
|
|
|
|
|
fpsr |= ((*flagp & excepts & FE_ALL_EXCEPT) << 13);
|
|
|
|
|
|
|
|
|
|
/* And store it back. */
|
|
|
|
|
__asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory");
|
|
|
|
|
|
|
|
|
|
/* Success. */
|
|
|
|
|
return 0;
|
|
|
|
|
}
|
