text1.asm

一个用来作软件仿真用的KEIL的程序

	ORG 	0X0000
	LJMP 	START
	
	ORG 	0X0030
START:	MOV	P1,	#0X55
	MOV 	R2,	#0
MAIN:	INC 	R2
	MOV	P1,	R2
	ACALL	DELAY
	AJMP	MAIN

DELAY:	MOV	R3, 	#5
LOOP1:	MOV	R4, 	#200
LOOP2:	MOV 	R5, 	#200
LOOP3:	DJNZ	R5, 	LOOP3
	DJNZ	R4, 	LOOP2
	DJNZ 	R3,	LOOP1
	RET
	END