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1b2b6656 | 1 | /* Get enabled floating-point exceptions. |
568035b7 | 2 | Copyright (C) 2000-2013 Free Software Foundation, Inc. |
1b2b6656 UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by David Huggins-Daines <dhd@debian.org>, 2000 | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
3214b89b AJ |
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. | |
1b2b6656 UD |
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 | |
3214b89b | 14 | Lesser General Public License for more details. |
1b2b6656 | 15 | |
3214b89b | 16 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff PE |
17 | License along with the GNU C Library. If not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
1b2b6656 UD |
19 | |
20 | #include <fenv.h> | |
21 | ||
22 | int | |
23 | fegetexcept (void) | |
24 | { | |
48dcf1c5 | 25 | union { unsigned long long l; unsigned int sw[2] } s; |
1b2b6656 UD |
26 | |
27 | /* Get the current status word. */ | |
5556231d | 28 | __asm__ ("fstd %%fr0,0(%1) \n\t" |
48dcf1c5 CD |
29 | "fldd 0(%1),%%fr0 \n\t" |
30 | : "=m" (s.l) : "r" (&s.l) : "%r0"); | |
1b2b6656 | 31 | |
48dcf1c5 | 32 | return (s.sw[0] & FE_ALL_EXCEPT); |
1b2b6656 | 33 | } |