1 /* Set given exception flags. x86_64 version.
2 Copyright (C) 2016-2017 Free Software Foundation, Inc.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
17
18 #include <fenv.h>
19
20 int
fesetexcept(int excepts)21 fesetexcept (int excepts)
22 {
23 unsigned int mxcsr;
24
25 __asm__ ("stmxcsr %0" : "=m" (*&mxcsr));
26 mxcsr |= excepts & FE_ALL_EXCEPT;
27 __asm__ ("ldmxcsr %0" : : "m" (*&mxcsr));
28
29 return 0;
30 }
31