h1a.asm

实现8段数码管显示.利用本代码

       ORG 0000H
       LJMP   Loop

       ORG    0100H
Loop:
       mov   a, #01h
       mov   r2, #8
Output:
       mov   P1, a
       rl    a
       call  Delay
       djnz  r2, Output
       ljmp  Loop

Delay:
       mov   r6, #H
       mov   r7, #H
DelayLoop:
       djnz  r6, DelayLoop
       djnz  r7, DelayLoop
       ret

       end