blob: d3f683777facabe78c7163ee577c7f5a5ebca68f (
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
|
/* $OpenBSD: s_tan.S,v 1.2 2005/08/02 11:17:31 espie Exp $ */
/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
#include <machine/asm.h>
ENTRY(tan)
fldl 4(%esp)
fptan
fnstsw %ax
andw $0x400,%ax
jnz 1f
fstp %st(0)
ret
1: fldpi
fadd %st(0)
fxch %st(1)
2: fprem1
fstsw %ax
andw $0x400,%ax
jnz 2b
fstp %st(1)
fptan
fstp %st(0)
ret
|
