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静音琴的源码,有兴趣的拼音可以下载下来看看,这个是可以生产的程序.

;********************************
;       时间恢复处理
;********************************
        PROC  SJHFCL
SJHFCL:
        PUSH  PSW
        PUSH  ACC
        MOV   A,JP1S
        ANL   A,JP2S
        ANL   A,JP3S
        ANL   A,JP4S
        ANL   A,JP5S
        ANL   A,JP6S
        ANL   A,JP7S
        ANL   A,JP8S
        ANL   A,JP9S
        ANL   A,JP10S
        ANL   A,JP11S
        CJNE  A,#0FFH,SJHFCLE
        ANL   A,JP1X
        ANL   A,JP2X
        ANL   A,JP3X
        ANL   A,JP4X
        ANL   A,JP5X
        ANL   A,JP6X
        ANL   A,JP7X
        ANL   A,JP8X
        ANL   A,JP9X
        ANL   A,JP10X
        ANL   A,JP11X
        CJNE  A,#0FFH,SJHFCLE
        ANL   A,JP1H
        ANL   A,JP2H
        ANL   A,JP3H
        ANL   A,JP4H
        ANL   A,JP5H
        ANL   A,JP6H
        ANL   A,JP7H
        ANL   A,JP8H
        ANL   A,JP9H
        ANL   A,JP10H
        ANL   A,JP11H
        CJNE  A,#0FFH,SJHFCLE
        MOV   A,#0
        CLR   ET2
        CLR   RS1
        SETB  RS0        ;1区
        MOV   R4,A
        MOV   R5,A
        MOV   R6,A
        MOV   R7,A
        SETB  ET2
SJHFCLE:
        POP   ACC
        POP   PSW
        RET
        include "软件陷阱.asm"
        END
;********************************