📄 s6-5.asm
字号:
ORG 0000H
LJMP MAIN
ORG 030H
MAIN: MOV P3,#0C0H
ACALL DEL4MS
MOV P3,#0F0H
MOV A,P3
CJNE A,#0F0H,F1
AJMP MAIN
F1: MOV P3,#0F9H
ACALL DEL1S
MOV P3,#0A4H
ACALL DEL1S
MOV P3,#0B0H
ACALL DEL1S
MOV P3,#099H
ACALL DEL1S
MOV P3,#092H
ACALL DEL1S
MOV P3,#082H
ACALL DEL1S
MOV P3,#0F8H
ACALL DEL1S
MOV P3,#080H
ACALL DEL1S
MOV P3,#090H
ACALL DEL1S
AJMP MAIN
DEL4MS: MOV R7,#04H
DL0: MOV R6,#0FFH
DL1: DJNZ R6,DL1
DJNZ R7,DL0
RET
DEL1S: MOV R5,0FFH
F2: ACALL DEL4MS
DJNZ R5,F2
RET
END
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