32 lines
436 B
ArmAsm
32 lines
436 B
ArmAsm
/*
|
|
* Written by J.T. Conklin <jtc@NetBSD.org>.
|
|
* Public domain.
|
|
*/
|
|
|
|
#include <machine/asm.h>
|
|
|
|
#include "abi.h"
|
|
|
|
RCSID("$NetBSD: s_sin.S,v 1.7 2003/07/26 19:25:03 salo Exp $")
|
|
|
|
ENTRY(sin)
|
|
XMM_ONE_ARG_DOUBLE_PROLOGUE
|
|
fldl ARG_DOUBLE_ONE
|
|
fsin
|
|
fnstsw %ax
|
|
andw $0x400,%ax
|
|
jnz 1f
|
|
XMM_DOUBLE_EPILOGUE
|
|
ret
|
|
1: fldpi
|
|
fadd %st(0)
|
|
fxch %st(1)
|
|
2: fprem1
|
|
fnstsw %ax
|
|
andw $0x400,%ax
|
|
jnz 2b
|
|
fstp %st(1)
|
|
fsin
|
|
XMM_DOUBLE_EPILOGUE
|
|
ret
|