8流水灯左移一次,右移一次,在做加1,如此循环下去。<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />
ORG 0030H
MAIN: MOV A,#00000001B
UP1: MOV P3,A
CALL YANSHI
RL A
CJNE A,#10000000B,UP1
UP2: MOV P3,A
CALL YANSHI
RR A
CJNE A,#00000001B,UP2
MOV P3,A
CALL YANSHI
CLR A
MOV A,#00000000B
UP3: MOV P3,A
CALL YANSHI
INC A
CJNE A,#10000000B,UP3
MOV P3,A
CALL YANSHI
JMP MAIN
YANSHI: MOV R7,#200
D1: MOV R6,#200
DJNZ R6,$
DJNZ R7,D1
RET
END
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