cstrcat.s

ICCAVR中所有的库函数源码

.area text
;
; char *cstrcat(char *dst, const char *src)
;
_cstrcat::
	mov	R26,R16
	mov	R27,R17
	mov	R30,R18
	mov	R31,R19
cstrcat1:
	ld	R0,X+
	tst	R0
	brne	cstrcat1
	sbiw	R26,1
cstrcat2:
	lpm
	adiw	R30,1
	st	X+,R0
	tst	R0
	brne	cstrcat2
	ret
;
;<eof; 2003-07-31 ja>