單片機程序設計題，用c或匯編編程都可以。請把程序編寫出來！謝謝！

這個很簡單的流水燈程序呀，

ORG?0000H

SJMP?MAIN

ORG?0030H

MAIN:

MOV?LED,#0FEH

MOV?R7,#8

LOOP:

MOV?P0,LED

LCALL?DELAY

MOV?A,LED

RL?A

MOV?LED,A

DJNZ?R7,LOOP

MOV?LED,#7FH

MOV?R7,#8

LOOP1:

MOV?P0,LED

MOV?A,LED

RR?A

MOV?LED,A

DJNZ?R7,LOOP

SJMP?MAIN

DELAY:

MOV?R2,#250

DELAY1:

MOV?R3,#250

DJNZ?R3,$

DJNZ?R2,DELAY1

RET

END