1 /* Clear given exceptions in current floating-point environment.
2 Copyright (C) 2013 Imagination Technologies Ltd.
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; see the file COPYING.LIB. If
17 not, see <http://www.gnu.org/licenses/>. */
18
19 #include <fenv.h>
20 #include <unistd.h>
21
22 #include "internal.h"
23
24 int
feclearexcept(int excepts)25 feclearexcept (int excepts)
26 {
27 unsigned int temp;
28
29 /* Get the current exceptions. */
30 __asm__ ("MOV %0,TXDEFR" : "=r" (temp));
31
32 /* Mask out unsupported bits/exceptions. */
33 excepts &= FE_ALL_EXCEPT;
34
35 excepts <<= 16;
36
37 temp &= ~excepts;
38
39 metag_set_fpu_flags(temp);
40
41 /* Success. */
42 return 0;
43 }
44