1 /* Store current floating-point control modes. i386 version.
2 Copyright (C) 2016-2022 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 #include <fpu_control.h>
21 #include <unistd.h>
22 #include <ldsodefs.h>
23 #include <dl-procinfo.h>
24
25 int
fegetmode(femode_t * modep)26 fegetmode (femode_t *modep)
27 {
28 _FPU_GETCW (modep->__control_word);
29 if (CPU_FEATURE_USABLE (SSE))
30 __asm__ ("stmxcsr %0" : "=m" (modep->__mxcsr));
31 return 0;
32 }
33