blob: 3a9f90bd9492e3f70cf8d626573d6983b8e52a42 (
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
|
/* $NetBSD: fpsetmask.c,v 1.9 2014/09/17 11:02:55 joerg Exp $ */
/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#include <sys/cdefs.h>
#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: fpsetmask.c,v 1.9 2014/09/17 11:02:55 joerg Exp $");
#endif /* LIBC_SCCS and not lint */
#include "namespace.h"
#include <ieeefp.h>
#ifdef __weak_alias
__weak_alias(fpsetmask,_fpsetmask)
#endif
fp_except
fpsetmask(fp_except mask)
{
fp_except old;
fp_except new;
__asm(".set push; .set noat; cfc1 %0,$31; .set pop" : "=r" (old));
new = old & ~(0x1f << 7);
new |= ((mask & 0x1f) << 7);
__asm(".set push; .set noat; ctc1 %0,$31; .set pop" : "=r" (new));
return (old >> 7) & 0x1f;
}
|
