blob: a9d96c9b76051801eeccbda7ac79e6fd1cb3c379 (
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
|
/*
* Written by Charles M. Hannum, Apr 9, 1995
* Public domain.
*/
#include <machine/asm.h>
#if defined(LIBC_SCCS)
.text
.asciz "$OpenBSD: fpsetmask.S,v 1.2 1996/08/19 08:12:25 tholo Exp $"
#endif
ENTRY(fpsetmask)
subl $4,%esp
fnstcw (%esp)
movl (%esp),%eax
movl %eax,%edx
notl %eax
andl $63,%eax
addl %eax,%edx
movl 8(%esp),%ecx
andl $63,%ecx
subl %ecx,%edx
movl %edx,(%esp)
fldcw (%esp)
addl $4,%esp
ret
|