1/*	$OpenBSD: fpsetmask.c,v 1.2 2005/08/07 16:40:15 espie Exp $ */
2/*
3 * Written by J.T. Conklin, Apr 11, 1995
4 * Public domain.
5 */
6
7#include <ieeefp.h>
8
9fp_except
10fpsetmask(mask)
11	fp_except mask;
12{
13	fp_except old;
14	fp_except new;
15
16	__asm__("cfc1 %0,$31" : "=r" (old));
17
18	new = old;
19	new &= ~(0x1f << 7);
20	new |= ((mask & 0x1f) << 7);
21
22	__asm__("ctc1 %0,$31" : : "r" (new));
23
24	return (old >> 7) & 0x1f;
25}
26