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/* Store current floating-point environment.
Copyright (C) 2000-2014 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, see
<http://www.gnu.org/licenses/>. */
#include <fenv.h>
#include <string.h>
int
__fegetenv (fenv_t *envp)
{
unsigned long long buf[4], *bufptr = buf;
__asm__ (
"fstd,ma %%fr0,8(%1) \n\t"
"fldd -8(%1),%%fr0 \n\t"
: "=m" (buf), "+r" (bufptr) : : "%r0");
memcpy(envp, buf, sizeof (*envp));
return 0;
}
libm_hidden_def (__fegetenv)
weak_alias (__fegetenv, fegetenv)
libm_hidden_weak (fegetenv)
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