📄 5.txt
字号:
ORG 0000H
JMP MAIN
ORG 0030H
MAIN:
MOV P0,#0FFH
MOV P1,#0FFH
MOV P2,#0FFH
MOV P3,#0FFH
MAIN_LOOP:
MOV P2,#01111111B
MOV P0,#0F9H
CALL DELAY
MOV P2,#10111111B
MOV P0,#10100100B
CALL DELAY
MOV P2,#11011111B
MOV P0,#10110000B
CALL DELAY
MOV P2,#11101111B
MOV P0,#10011001B
CALL DELAY
MOV P2,#11110111B
MOV P0,#10010010B
CALL DELAY
MOV P2,#11111011B
MOV P0,#10000010B
CALL DELAY
JMP MAIN_LOOP
RET
DELAY:
MOV R5,#003H
DELAY_2:
MOV R6,#060H
DELAY_1:
MOV R7,#060H
DELAY_0:
NOP
NOP
DJNZ R7,DELAY_0
DJNZ R6,DELAY_1
DJNZ R5,DELAY_2
RET
END
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