about summary refs log tree commit diff
path: root/sysdeps/sh/sh4/fpu/fedisblxcpt.c
blob: 3195bb184c7a5a8f6eb384e4c193872b90f2434f (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/* Disable floating-point exceptions.
   Copyright (C) 2012-2019 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <fenv.h>
#include <fpu_control.h>

int
fedisableexcept (int excepts)
{
  fpu_control_t temp, old_exc;

  /* Get the current control register contents.  */
  _FPU_GETCW (temp);

  old_exc = (temp >> 5) & FE_ALL_EXCEPT;

  excepts &= FE_ALL_EXCEPT;

  temp &= ~(excepts << 5);
  _FPU_SETCW (temp);

  return old_exc;
}