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9bb90607 | 1 | /* Store current representation for exceptions. |
b168057a | 2 | Copyright (C) 2000-2015 Free Software Foundation, Inc. |
9bb90607 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. | |
9bb90607 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. |
9bb90607 | 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/>. */ | |
9bb90607 UD |
19 | |
20 | #include <fenv.h> | |
21 | ||
22 | int | |
23 | fegetexceptflag (fexcept_t *flagp, int excepts) | |
24 | { | |
48dcf1c5 | 25 | union { unsigned long long l; unsigned int sw[2]; } s; |
9bb90607 UD |
26 | |
27 | /* Get the current status word. */ | |
5556231d JM |
28 | __asm__ ("fstd %%fr0,0(%1) \n\t" |
29 | "fldd 0(%1),%%fr0 \n\t" | |
5abebba4 | 30 | : "=m" (s.l) : "r" (&s.l) : "%r0"); |
9bb90607 | 31 | |
48dcf1c5 | 32 | *flagp = (s.sw[0] >> 27) & excepts & FE_ALL_EXCEPT; |
9bb90607 UD |
33 | |
34 | /* Success. */ | |
35 | return 0; | |
36 | } |