mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 01:40:07 +00:00
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* Store current floating-point environment.
|
|
Copyright (C) 2000-2016 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)
|