blob: d5ed2fa29c5901610303e58882b77945173d8599 (
plain)
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
|
/* Determine floating-point rounding mode within libc. Alpha version.
Copyright (C) 2012-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
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/>. */
#ifndef ALPHA_GET_ROUNDING_MODE_H
#define ALPHA_GET_ROUNDING_MODE_H 1
#include <fenv.h>
#include <fenv_libc.h>
/* Return the floating-point rounding mode. */
static inline int
get_rounding_mode (void)
{
unsigned long fpcr;
__asm__ __volatile__("excb; mf_fpcr %0" : "=f"(fpcr));
return (fpcr >> FPCR_ROUND_SHIFT) & 3;
}
#endif /* get-rounding-mode.h */
|
