blob: 09b7cfd99c2677e763c74b013029de1cd0c9ba40 (
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
40
41
|
/* Store current representation for exceptions.
Copyright (C) 2000-2016 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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_libc.h>
#include <fpu_control.h>
int
fegetexceptflag (fexcept_t *flagp, int excepts)
{
fexcept_t temp, newexcepts;
/* Get the current exceptions. */
_FPU_GETCW (temp);
newexcepts = excepts << FPC_FLAGS_SHIFT;
if ((temp & FPC_NOT_FPU_EXCEPTION) == 0)
/* Bits 6, 7 of dxc-byte are zero,
thus bits 0-5 of dxc-byte correspond to the flag-bits.
Evaluate flags and last dxc-exception-code. */
newexcepts |= excepts << FPC_DXC_SHIFT;
*flagp = temp & newexcepts;
/* Success. */
return 0;
}
|
