001.asm

利用左移方式实现流水灯的闪烁与游走.这个是单片机程序.

      ORG 0000H
	  LJMP START
	  ORG 0030H
START:MOV SP,#70H
      MOV A,#0FEH
	  MOV R2,#08H

LOOP: MOV P1,A
      LCALL DELAY
	  RL A
	  DJNZ R2,LOOP
	  MOV R2,#08H

LOOP1:RR A
      MOV P1,A
	  LCALL DELAY
	  DJNZ R2,LOOP1
	  LJMP START

DELAY: 
      MOV R3,#50
   D1:MOV R4,#20
   D2:MOV R5,#248
   D3:DJNZ R5,D3
      DJNZ R4,D2
	  DJNZ R3,D1
	  RET
	  END