42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* Install given floating-point control modes. PowerPC version.
|
|
Copyright (C) 2016-2022 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_libc.h>
|
|
#include <fpu_control.h>
|
|
|
|
int
|
|
fesetmode (const femode_t *modep)
|
|
{
|
|
fenv_union_t old, new;
|
|
|
|
/* Logic regarding enabled exceptions as in fesetenv. */
|
|
|
|
new.fenv = *modep;
|
|
old.fenv = fegetenv_control ();
|
|
new.l = (new.l & ~FPSCR_STATUS_MASK) | (old.l & FPSCR_STATUS_MASK);
|
|
|
|
if (old.l == new.l)
|
|
return 0;
|
|
|
|
__TEST_AND_EXIT_NON_STOP (old.l, new.l);
|
|
__TEST_AND_ENTER_NON_STOP (old.l, new.l);
|
|
|
|
fesetenv_control (new.fenv);
|
|
return 0;
|
|
}
|