ORG 0000H
MAIN:
MOV A,#0FEH
MOV R2,#8
LP1: ;左移
MOV P0,A
RL A
LCALL DELAY
DJNZ R2,LP1
MOV R2,#8
LP2: ;右移
MOV P0,A
RR A
LCALL DELAY
DJNZ R2,LP2
MOV R2,#8
LP3: ;闪烁右移
MOV P0,A
RR A
LCALL DELAY
MOV P0,#0FFH
LCALL DELAY
DJNZ R2,LP3
MOV R2,#8
LP4: ;闪烁左移
MOV P0,A
RL A
LCALL DELAY
MOV P0,#0FFH
LCALL DELAY
DJNZ R2,LP4
LJMP MAIN
END
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