闪烁.asm

包含单片机开发的入门程序

        ORG     0000H
        LJMP    START
        ORG     0030H
START:
      MOV P0,#0FFH
      LCALL DELAY
      MOV P0,#00H
      LCALL DELAY
      ;SETB P0.0
      ;LCALL DELAY
      ;CLR P0.0
      ;LCALL DELAY
      AJMP START
DELAY:                  ;延时子程序1s
       MOV     R0,#0AH
DELAY1:MOV     R1,#00H
DELAY2:MOV     R2,#0B2H
       DJNZ    R2,$
       DJNZ    R1,DELAY2
       DJNZ    R0,DELAY1
       RET
       END