xref: /netbsd-src/lib/libc/arch/sparc/gen/fpsetsticky.c (revision 2a399c6883d870daece976daec6ffa7bb7f934ce)
1 /*	$NetBSD: fpsetsticky.c,v 1.2 1998/01/09 03:15:19 perry Exp $	*/
2 
3 /*
4  * Written by J.T. Conklin, Apr 10, 1995
5  * Public domain.
6  */
7 
8 #include <ieeefp.h>
9 
10 fp_except
11 fpsetsticky(sticky)
12 	fp_except sticky;
13 {
14 	fp_except old;
15 	fp_except new;
16 
17 	__asm__("st %%fsr,%0" : "=m" (*&old));
18 
19 	new = old;
20 	new &= ~(0x1f << 5);
21 	new |= ((sticky & 0x1f) << 5);
22 
23 	__asm__("ld %0,%%fsr" : : "m" (*&new));
24 
25 	return (old >> 5) & 0x1f;
26 }
27