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git.ipfire.org Git - thirdparty/glibc.git/blob - sysdeps/csky/fpu/fedisblxcpt.c
1 /* Disable floating-point exceptions.
2 Copyright (C) 2018-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
20 #include <fenv_libc.h>
21 #include <fpu_control.h>
24 fedisableexcept (int excepts
)
26 unsigned int new_exc
, old_exc
;
28 /* Get the current control word. */
31 old_exc
= (new_exc
& ENABLE_MASK
) >> ENABLE_SHIFT
;
33 /* Get the except disable mask. */
34 excepts
&= FE_ALL_EXCEPT
;
35 new_exc
&= ~(excepts
<< ENABLE_SHIFT
);
37 /* Put the new data in effect. */