2.txt

关于单片机中流水线处理,红绿灯转化等实验

	org	0000H
	jmp	MAIN


	org	0030H
MAIN:
	MOV	P0,#0FFH
	MOV	P1,#0FFH
	MOV	P2,#0FFH
	MOV	P3,#0FFH

	MOV	P2,#01111111B
	MOV	P0,#10000000B
	CALL	DELAY

	MOV	P2,#10111111B
	MOV	P0,#11110001B
	CALL	DELAY
	
	MOV	P2,#11011111B
	MOV	P0,#10100101B
	CALL	DELAY

	MOV	P2,#11101111B
	MOV	P0,#10110000B
	CALL	DELAY

	JMP	$

	RET

DELAY:
	MOV	R5,#06H
DELAY_2:
	MOV	R6,#0FFH
DELAY_1:
	MOV	R7,#0FFH
DELAY_0:
	NOP
	NOP
	DJNZ	R7,DELAY_0
	DJNZ	R6,DELAY-1
	DJNZ	R5,DELAY_2
	RET

	END