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d5efd131 | 1 | /* Clear given exceptions in current floating-point environment. |
688903eb | 2 | Copyright (C) 1997-2018 Free Software Foundation, Inc. |
d5efd131 MF |
3 | This file is part of the GNU C Library. |
4 | Contributed by Christian Boissat <Christian.Boissat@cern.ch>, 1999 and | |
5 | Jes Sorensen <Jes.Sorensen@cern.ch>, 2000 | |
6 | ||
7 | The GNU C Library is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU Lesser General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 2.1 of the License, or (at your option) any later version. | |
11 | ||
12 | The GNU C Library is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 | Lesser General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU Lesser General Public | |
75efb018 MF |
18 | License along with the GNU C Library; if not, see |
19 | <http://www.gnu.org/licenses/>. */ | |
d5efd131 MF |
20 | |
21 | #include <fenv.h> | |
22 | ||
23 | int | |
24 | feclearexcept (int excepts) | |
25 | { | |
26 | fenv_t fpsr; | |
27 | ||
28 | /* Get the current state. */ | |
29 | __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); | |
30 | ||
31 | /* Clear the relevant bits. */ | |
32 | fpsr &= ~(((fenv_t) ((excepts & FE_ALL_EXCEPT) << 13))); | |
33 | /* Put the new state in effect. */ | |
34 | __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory"); | |
35 | ||
36 | /* success */ | |
37 | return 0; | |
38 | } | |
5b5b04d6 | 39 | libm_hidden_def (feclearexcept) |