1 /* Clear given exceptions in current floating-point environment.
2 Copyright (C) 1997-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <fenv.h>
20
21 int
feclearexcept(int excepts)22 feclearexcept (int excepts)
23 {
24 fenv_t fpsr;
25
26 /* Get the current state. */
27 __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr));
28
29 /* Clear the relevant bits. */
30 fpsr &= ~(((fenv_t) ((excepts & FE_ALL_EXCEPT) << 13)));
31 /* Put the new state in effect. */
32 __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory");
33
34 /* success */
35 return 0;
36 }
37 libm_hidden_def (feclearexcept)
38