㣺
ORG 0000H
MOV P1,#0FFH
MOV P2,#0FFH
MOV A,P1
ANL A,P2
MOV P3,A
END
㣺
ORG 0000H
MOV P1,#0FFH
MOV P2,#0FFH
MOV A,P1
ORL A,P2
MOV P3,A
END

ORG 0000H
MOV P1,#0FFH
MOV P2,#0FFH
MOV A,P1
XRL A,P2
MOV P3,A
END
ͬ
ORG 0000H
MOV P1,#0FFH
MOV P2,#0FFH
MOV A,P1
XRL A,P2
CPL A
MOV P3,A
END
