流水燈.png (113.71 KB, 下載次數(shù): 45)
下載附件
2019-4-29 10:48 上傳
ORG 0H
LOOP: MOV A,#0FEH
MOV R2,#8
OUT0: MOV P0,A
RL A
ACALL DELAY
DJNZ R2,OUT0
LJMP LOOP
DELAY: MOV R5,#3
DELY1: MOV R6,#0FFH
DELY2: MOV R7,#0FFH
DJNZ R7,$
DJNZ R6,DELY2
DJNZ R5,DELY1
RET
END
|