1 /*
2 * Copyright (C) 2016-2017 Andes Technology, Inc.
3 * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
4 */
5
6 /* Set floating-point environment exception handling.
7 Copyright (C) 1997-2013 Free Software Foundation, Inc.
8
9 The GNU C Library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13
14 The GNU C Library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public
20 License along with the GNU C Library. If not, see
21 <http://www.gnu.org/licenses/>. */
22
23 #include <fenv.h>
24 #include <fpu_control.h>
25
26 int
fesetexceptflag(const fexcept_t * flagp,int excepts)27 fesetexceptflag (const fexcept_t *flagp, int excepts)
28 {
29 #ifdef __NDS32_ABI_2FP_PLUS__
30 fexcept_t temp;
31
32 /* Get the current environment. */
33 _FPU_GETCW (temp);
34
35 /* Set the desired exception mask. */
36 temp &= ~(excepts & FE_ALL_EXCEPT);
37 temp |= (*flagp & excepts & FE_ALL_EXCEPT);
38
39 /* Save state back to the FPU. */
40 _FPU_SETCW (temp);
41
42 /* Success. */
43 return 0;
44 #else
45 /* Unsupported, so fail unless nothing needs to be done. */
46 return (excepts != 0);
47 #endif
48 }
49