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dd33e89f | 1 | /* Set floating-point environment exception handling. |
4eb8a862 | 2 | Copyright (C) 1997,99,2000,01 Free Software Foundation, Inc. |
dd33e89f UD |
3 | This file is part of the GNU C Library. |
4 | Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> | |
5 | ||
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 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. | |
dd33e89f 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 | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
dd33e89f | 15 | |
41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
dd33e89f UD |
20 | |
21 | #include <fenv.h> | |
22 | #include <math.h> | |
23 | ||
63ae7b63 UD |
24 | int |
25 | __fesetexceptflag (const fexcept_t *flagp, int excepts) | |
dd33e89f UD |
26 | { |
27 | fexcept_t fpsr; | |
28 | ||
29 | /* Get the current status register. */ | |
30 | __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); | |
31 | ||
32 | /* Install the new exception bits in the Accrued Exception Byte. */ | |
33 | fpsr &= ~(excepts & FE_ALL_EXCEPT); | |
34 | fpsr |= *flagp & excepts & FE_ALL_EXCEPT; | |
35 | ||
36 | /* Store the new status register. */ | |
37 | __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); | |
63ae7b63 UD |
38 | |
39 | /* Success. */ | |
40 | return 0; | |
dd33e89f | 41 | } |
4eb8a862 RM |
42 | |
43 | #include <shlib-compat.h> | |
44 | #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2) | |
63ae7b63 | 45 | strong_alias (__fesetexceptflag, __old_fesetexceptflag) |
4eb8a862 RM |
46 | compat_symbol (libm, __old_fesetexceptflag, fesetexceptflag, GLIBC_2_1); |
47 | #endif | |
48 | ||
49 | versioned_symbol (libm, __fesetexceptflag, fesetexceptflag, GLIBC_2_2); |