panthema / 2006 / SDIOS06 / sdios06 / lib / libc / sin.S (Download File)
# Taken from dietlibc...

.text

.global sinf,sin,sinl
.type   sinf,@function
.type   sin,@function
.type   sinl,@function
sinf:
	flds	4(%esp)
	jmp	1f
sin:
	fldl	4(%esp)
1:	fsin
	fnstsw	%ax
	testb	$0x04, %ah
	je	3f
	fldpi
	fadd	%st
	fxch	%st(1)
2:	fprem1
	fnstsw	%ax
	testb	$0x04, %ah
	jne	2b
	fstp	%st(1)
	fsin
3:	ret
sinl:
	fldt	4(%esp)
	jmp	1b

.ende:
.size    sin,.ende-sin
.size    sinf,.ende-sinf
.size    sinl,.ende-sinl
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