1 | /* Install given floating-point control modes. PowerPC version. |
2 | Copyright (C) 2016-2024 Free Software Foundation, Inc. |
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; if not, see |
17 | <https://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <fenv_libc.h> |
20 | #include <fpu_control.h> |
21 | |
22 | int |
23 | fesetmode (const femode_t *modep) |
24 | { |
25 | fenv_union_t old, new; |
26 | |
27 | /* Logic regarding enabled exceptions as in fesetenv. */ |
28 | |
29 | new.fenv = *modep; |
30 | old.fenv = fegetenv_control (); |
31 | new.l = (new.l & ~FPSCR_STATUS_MASK) | (old.l & FPSCR_STATUS_MASK); |
32 | |
33 | if (old.l == new.l) |
34 | return 0; |
35 | |
36 | __TEST_AND_EXIT_NON_STOP (old.l, new.l); |
37 | __TEST_AND_ENTER_NON_STOP (old.l, new.l); |
38 | |
39 | fesetenv_control (new.fenv); |
40 | return 0; |
41 | } |
42 | |