led.asm

来自「AT89C51开发例程 protues仿真 keil编程」· 汇编 代码 · 共 68 行

NAME    LED

LED SEGMENT CODE
RSEG LED
	PUBLIC _Refresh

_Refresh:
	MOV P2,#08H
	MOV P0,#0FFH
	MOV P2,#80H
	MOV P0,#0FFH
	MOV P2,#04H
	MOV P0,#0FFH
	MOV P2,#40H
	MOV P0,#0FFH
	MOV P2,#02H
	MOV P0,#0FFH
	MOV P2,#20H
	MOV P0,#0FFH
	MOV P2,#01H
	MOV P0,#0FFH
	MOV P2,#10H
	MOV P0,#0FFH

	MOV A,R1
	MOV R0,A
	MOV A,@R0
	MOV P2,#80H
	MOV P0,A

	INC R0
	MOV A,@R0
	MOV P2,#40H
	MOV P0,A

	INC R0
	MOV A,@R0
	MOV P2,#20H
	MOV P0,A

	INC R0
	MOV A,@R0
	MOV P2,#10H
	MOV P0,A

	INC R0
	MOV A,@R0
	MOV P2,#08H
	MOV P0,A

	INC R0
	MOV A,@R0
	MOV P2,#04H
	MOV P0,A

	INC R0
	MOV A,@R0
	MOV P2,#02H
	MOV P0,A

	INC R0
	MOV A,@R0

	MOV P2,#01H
	MOV P0,A

	RET
	END