5.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
MAIN_LOOP:
	MOV	P2,#01111111B
	MOV	P0,#0F9H
	CALL	DELAY

	MOV	P2,#10111111B
	MOV	P0,#10100100B
	CALL	DELAY

	MOV	P2,#11011111B
	MOV	P0,#10110000B
	CALL	DELAY

	MOV	P2,#11101111B
	MOV	P0,#10011001B
	CALL	DELAY

	MOV	P2,#11110111B
	MOV	P0,#10010010B
	CALL	DELAY
	
	MOV	P2,#11111011B
	MOV	P0,#10000010B
	CALL	DELAY


	JMP	MAIN_LOOP
	RET
	
DELAY:
	MOV	R5,#003H
DELAY_2:
	MOV	R6,#060H
DELAY_1:
	MOV	R7,#060H
DELAY_0:
	NOP
	NOP
	DJNZ	R7,DELAY_0
	DJNZ	R6,DELAY_1
	DJNZ	R5,DELAY_2

RET
END