frexp.s

ICCAVR中所有的库函数源码

	.text
; float frexp(float X, int *eptr)
_frexp::
	cpi R19,0
	bne next
	ret
next:
	mov R2,R16	; sav X
	mov R3,R17
	mov R4,R18
	mov R5,R19
	cbr	R5,0x80	; clear sign bit
	clr	R0
	cpi