xunhuan.asm

已知当前数据段中DATA1 和DATA2 开始分别存放若干字节数据

DSEG	SEGMENT
DATA1	DB	'DSAFGDTHJJ'
DATA2	DB	'DSAFGDTHJT'
CNT		DW	10
DSEG	ENDS
CSEG	SEGMENT
		ASSUME	CS: CSEG, DS: DSEG
START:	MOV	AX, DSEG
		MOV	DS, AX
		MOV	DL, 31H
		LEA	SI, DATA1
		LEA	DI, DATA2
		MOV	CX, CNT
		DEC	SI
		DEC	DI
AGAIN:	INC	SI
		INC	DI
		MOV	AL, [SI]
		CMP	AL, [DI]
		LOOPZ	AGAIN
		JZ	DISP
		DEC	DL
DISP:	MOV	AH, 2
		INT	21H
		MOV	AH, 4CH
		INT	21H
CSEG	ENDS
		END	START