自编电子时钟6(有对时)完整版.doc

ORG 0000HLJMP STARTORG 001BHLJMP DINGORG 0003HLJMP CHECKORG 0013HLJMP SWITCHORG 0100HSTART:MOV TMOD,#10H MOV TH1,#3CH MOV TL1,#0B0H MOV SCON,#00H SETB EA SETB EX0 SETB IT0 SETB EX1 SETB IT1 SETB ET1 SETB TR1 MOV R0,#00H MOV R1,#00H MOV R2,#00H MOV R3,#00H MOV R4,#00HMOV R5,#00H MOV R6,#00HSEGLIGHT:MOV A,R1 MOV DPTR,#TAB MOVC A,A+DPTR CLR TI MOV P1,#0FEH MOV SBUF,A JNB TI,$ LCALL DELAY MOV A,R2 MOV DPTR,#TAB MOVC A,A+DPTR CLR TI MOV P1,#0FDH MOV SBUF,A JNB TI,$ LCALL DELAY MOV A,R3 MOV DPTR,#TAB MOVC A,A+DPTR CLR TI MOV P1,#0FBH MOV SBUF,A JNB TI,$ LCALL DELAY MOV A,R4 MOV DPTR,#TAB MOVC A,A+DPTR CLR TI MOV P1,#0F7H MOV SBUF,A JNB TI,$ LCALL DELAYMOV A,R5 MOV DPTR,#TAB MOVC A,A+DPTR CLR TI MOV P1,#0EFH MOV SBUF,A JNB TI,$ LCALL DELAY MOV A,R6 MOV DPTR,#TAB MOVC A,A+DPTR CLR TI MOV P1,#0DFH MOV SBUF,A JNB TI,$ LCALL DELAY LJMP SEGLIGHTDING:INC R0 MOV TH1,#3CH MOV TL1,#0B0H CJNE R0,#02,LOOP4 LJMP NEXTNEXT:MOV R0,#00H CJNE R1,#09H,LOOP3 MOV R1,#00H INC R2 CJNE R2,#06H,LOOP2 MOV R2,#00H CJNE R3,#09H,LOOP5 MOV R3,#00H INC R4 CJNE R4,#06H,LOOP2 MOV R4,#00H CJNE R5,#03H,LOOP6 CJNE R6,#02H,LOOP7 MOV R6,#00H MOV R5,#00H RETILOOP3:INC R1 RETILOOP2:RETILOOP4:RETILOOP5:INC R3 RETILOOP6:CJNE R5,#09H,LOOP7 MOV R5,#00H INC R6RETILOOP7:INC R5 RETICHECK:MOV A,30H CJNE A,#00H,HOUR MOV 30H,A MOV R1,#00H MOV R2,#00H MOV R3,#00H MOV R4,#00HMOV R5,#00H MOV R6,#00H CPL ET1 RETIHOUR:MOV R1,#00H MOV R2,#00H MOV A,30H CJNE A,#01H,MINUTE MOV 30H,A CJNE R5,#03H,LOOP60 CJNE R6,#02H,LOOP70 MOV R6,#00H MOV R5,#00H RETILOOP60:CJNE R5,#09H,LOOP70 MOV R5,#00H INC R6 RETILOOP70:INC R5 RETIMINUTE:MOV R1,#00H MOV R2,#00H MOV A,30H CJNE A,#02H,RUN MOV 30H,A CJNE R4,#06H,LOOP8 MOV R3,#00H MOV R4,#00H RETILOOP8:CJNE R3,#09H,LOOP9 MOV R3,#00HINC R4RETILOOP9:INC R3 RETIRUN:MOV 30H,#00H CPL ET1 RETISWITCH:MOV A,30H INC A MOV 30H,A CL