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d5efd131 | 1 | /* Set floating-point environment exception handling. |
04277e02 | 2 | Copyright (C) 1997-2019 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. | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
7 | modify it under the terms of the GNU Lesser General Public | |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
10 | ||
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public | |
75efb018 | 17 | License along with the GNU C Library; if not, see |
5a82c748 | 18 | <https://www.gnu.org/licenses/>. */ |
d5efd131 MF |
19 | |
20 | #include <fenv.h> | |
21 | ||
22 | int | |
23 | fesetexceptflag (const fexcept_t *flagp, int excepts) | |
24 | { | |
25 | fenv_t fpsr; | |
26 | ||
27 | /* Get the current exception state. */ | |
28 | __asm__ __volatile__ ("mov.m %0=ar.fpsr" : "=r" (fpsr)); | |
29 | ||
30 | fpsr &= ~(((fenv_t) excepts & FE_ALL_EXCEPT) << 13); | |
31 | ||
32 | /* Set all the bits that were called for. */ | |
33 | fpsr |= ((*flagp & excepts & FE_ALL_EXCEPT) << 13); | |
34 | ||
35 | /* And store it back. */ | |
36 | __asm__ __volatile__ ("mov.m ar.fpsr=%0" :: "r" (fpsr) : "memory"); | |
37 | ||
38 | /* Success. */ | |
39 | return 0; | |
40 | } |