单片机数码管动态显示0~F程序

ORG 0000H
LJMP MAIN
ORG 0100H
MAIN:MOV R0,#06H
     MOV R1,#5BH
 MOV R2,#4FH
 MOV R3,#66H
START:MOV P3,#0FEH
      MOV P1,R0
  LCALL DELAY
  MOV P3,#0FDH
  MOV P1,R1
  LCALL DELAY
  MOV P3,#0FBH
  MOV P1,R2
  LCALL DELAY
  MOV P3,#0F7H
  MOV P1,R3
  LCALL DELAY
START1:MOV P3,#0F7H
      MOV P1,#06DH
  LCALL DELAY
  MOV P3,#0FBH
  MOV P1,#07DH
  LCALL DELAY
  MOV P3,#0FDH
  MOV P1,#007H
  LCALL DELAY
  MOV P3,#0FEH
  MOV P1,#07FH