单时钟完成多点分别计时的实现和应用

                INC       53H
                        MOV       A,53H
                        CJNE      A,#20,DE5I
                        CLR       2CH.3
                        LCALL     OUT01
                        MOV       53H,#00H
DE5I:                   LJMP      DE5
DEAL5:                 JNB       2CH.4,DE6I
                 INC       54H
                        MOV       A,54H
                        CJNE      A,#20,DE6I
                        CLR       2CH.4
                        MOV       54H,#00H
                        LCALL     OUT01
DE6I:                   LJMP      DE6
DEAL6:                  JNB       2CH.5,DE7I
                  INC       55H
                        MOV       A,55H
                        CJNE      A,#20,DE7I
                        CLR       2CH.5
                        LCALL     OUT01
                        MOV       55H,#00H
DE7I:                   LJMP      DE7
DEAL7:                  JNB       2CH.6,DE8I
                 INC       56H
                        MOV       A,56H
                        CJNE      A,#20,DE8I
                        CLR       2CH.6
                        LCALL     OUT01
                        MOV       56H,#00H
DE8I:                   LJMP      DE8
DEAL8:                 JNB       2CH.7,FINISH
                 INC       57H
                        MOV       A,57H
                        CJNE      A,#20,FINISH
                        CLR       2CH.7
                        LCALL     OUT01
                        MOV       57H,#00H

                           
FINISH:                 MOV       A,2CH
                        CJNE      A,#00H,TUI
                       
                     
                        SETB      TR0;SETB      TR0
                 POP       ACC

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