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/* Store current floating-point environment and clear exceptions.
Copyright (C) 1997-2020 Free Software Foundation, Inc.
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
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <fenv.h>
int
__feholdexcept (fenv_t *envp)
{
fenv_t fpsr;
/* Save the current state. */
__asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
*envp = fpsr;
/* Set the trap disable bits. */
fpsr |= FE_ALL_EXCEPT;
/* And clear the exception bits. */
fpsr &= ~(fenv_t) (FE_ALL_EXCEPT << 13);
__asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr));
/* Success. */
return 0;
}
libm_hidden_def (__feholdexcept)
weak_alias (__feholdexcept, feholdexcept)
libm_hidden_weak (feholdexcept)
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