43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* Install given floating-point environment.
|
|
Copyright (C) 1997-2022 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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
|
|
__fesetenv (const fenv_t *envp)
|
|
{
|
|
fenv_t env;
|
|
|
|
/*
|
|
This stinks!
|
|
Magic encoding of default values: bit 62+63 set (which will never
|
|
happen for a user-space address) means it's not indirect.
|
|
*/
|
|
if (((fenv_t) envp >> 62) == 0x03)
|
|
env = (fenv_t) envp & 0x3fffffffffffffff;
|
|
else
|
|
env = *envp;
|
|
|
|
__asm__ __volatile__ ("mov.m ar.fpsr=%0;;" :: "r" (env));
|
|
|
|
return 0;
|
|
}
|
|
libm_hidden_def (__fesetenv)
|
|
weak_alias (__fesetenv, fesetenv)
|
|
libm_hidden_weak (fesetenv)
|