test1.asm.bak

提供一個用8051做立體停車設備控制的範例

		.SYMBOLS
DELAY_COUNT1	EQU	07H
ROUND		EQU	01H	
				
		ORG	0H
		JMP	START
START:
		MOV	PSW,#0
		MOV	P1,#0
		MOV	A,#01
		MOV	ROUND,#07H
LEFT:
		MOV	P1,A
		CALL	DELAY	
		RL	A
		DJNZ	ROUND,LEFT
		MOV	ROUND,#07H
RIGHT:
		MOV	P1,A
		CALL	DELAY
		RR	A
		DJNZ	ROUND,RIGHT
		MOV	P1,A
DELAY:
		MOV	DELAY_COUNT1,#10
		DJNZ	DELAY_COUNT1,$
		RET