1/* $OpenBSD: s_sin.S,v 1.2 2005/08/02 11:17:31 espie Exp $ */ 2/* 3 * Written by J.T. Conklin <jtc@netbsd.org>. 4 * Public domain. 5 */ 6 7#include <machine/asm.h> 8 9ENTRY(sin) 10 fldl 4(%esp) 11 fsin 12 fnstsw %ax 13 andw $0x400,%ax 14 jnz 1f 15 ret 161: fldpi 17 fadd %st(0) 18 fxch %st(1) 192: fprem1 20 fnstsw %ax 21 andw $0x400,%ax 22 jnz 2b 23 fstp %st(1) 24 fsin 25 ret 26