light.asm

汇编小程序

          ORG 0000H
		  AJMP MAIN
		  ORG 0030H
MAIN:     MOV R0,#08H
          MOV P0,#0FEH
PLAY:     RR A
          MOV P0,A
		  ACALL DEL
		  DJNZ R0,PLAY
		  AJMP MAIN
DEL:      MOV R5,#01FH
DEL1:     MOV R6,#0FFH
DEL2:     MOV R7,#0FFH
DEL3:     DJNZ R7,DEL3
          DJNZ R6,DEL2
		  DJNZ R5,DEL1
		  RET 
		  END