【正文】 30H,31H,32H,33h DB 34H,35H,36H,37H DB 38h,39H,41H,42H DB 43H,44H,45H,46H TABLE5: DB 39。AUTHOR CYS39。,0FEH 。播放歌曲程序。MAIN0: MOV TMOD,11HMOV IE,8aH 。MOV TH1, 3cH 。MOV TL1, 0b0H lcall ksjnz TTM12 MOV 40H,00H。NEXT20: MOV A,40HMOV DPH,52HMOV DPL,53HMOVC A,@A+DPTRMOV R2,AJZ STOPANL A,0FHMOV R1,AMOV A,R2SWAP AANL A,0FHJNZ SINGCLR TR0JMP W1。SING: DEC AMOV 22H,ARL AMOV DPTR,TABLE00MOVC A,@A+DPTRMOV TH0,AMOV 21H,AMOV A,22HRL AINC AMOVC A,@A+DPTRMOV TL0,AMOV 20H,ASETB TR0SETB TR1W1: LCALL DELAY30INC 40HLCALL KS 。有鍵跳出JNZ STOPLJMP NEXT20。STOP: CLR TR0CLR TR1 LJMP MAIN0 。TTM12: LCALL K2 MOV A,37HCJNE A,0EH,TTM13CLR TR1 LCALL DELAY1TTM120: LCALL KSLCALL DELAY1JZ TTM120 LCALL K2 MOV A,37HCJNE A,0EH,TTM120SETB TR1 LJMP NEXT20TTM13: CJNE A,0CH,TTM14MOV A,52HINC AMOV 52H,AMOV A,53HINC AMOV 53H,AMOV A,36HINC AMOV 37H,ALJMP TTM2TTM14: CJNE A,0DH,TTM2MOV A,52HDEC AMOV 52H,AMOV A,53HDEC AMOV 53H,AMOV A,36HDEC AMOV 37H,A。 TTM2: RET。***************************************************。定時器中斷子程序0。***************************************************TT0: PUSH ACCPUSH PSWMOV TL0,20HMOV TH0,21HCPL POP PSWPOP ACCRETI。***************************************************。定時器中斷子程序1。***************************************************T1INT: MOV TH1, 3cH MOV TL1, 0b0H DJNZ L50MS,X4 MOV L50MS,20 。****************每秒種時鐘刷新秒顯示一次SECSET:MOV A,SEC MOV B,10 DIV AB ADD A,30H MOV P0,0CEH 。顯示秒十位 CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CFH 。顯示秒個位 CALL ENABLE CALL WRITE2 MOV A,SEC INC A MOV SEC,A XRL A,60X4: JNZ OUTMINSET: MOV SEC,00H 。*************************************每分鐘刷新分顯示一次 MOV A,MIN INC A MOV MIN,A MOV B,10 DIV AB ADD A,30H MOV P0,0CBH 。顯示分十位 CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0CCH 。顯示分個位 CALL ENABLE CALL WRITE2 MOV A,MIN MOV B,3 MUL AB MOV B,100 DIV AB MOV R2,A MOV A,10 XCH A,B DIV AB MOV A,MIN XRL A,60 JNZ OUTHOUSET: MOV MIN,00H 。**************************************每小時刷新小時顯示一次 MOV A,HOU MOV B,10 DIV AB ADD A,30H 。將BCD嗎轉(zhuǎn)化為ASIIC碼 MOV P0,0C8H 。顯示小時十位 CALL ENABLE CALL WRITE2 MOV A,B ADD A,30H MOV P0,0C9H 。顯示小時個位 CALL ENABLE CALL WRITE2 MOV A,HOU INC A MOV HOU,A XRL A,10 JNZ OUT SJMP OVERFLOWOUT: RETI。*************************************溢出處理OVERFLOW: MOV L50MS,20 MOV L1MS,00H MOV L250MS,00H MOV SEC,00H MOV MIN,00H MOV HOU,00H RETI。DELAY30: MOV R7,2W2: MOV R4,125W3: MOV R3,248DJNZ R3,$DJNZ R4,W3DJNZ R7,W2DJNZ R1,DELAY30RETDELAY10: SETB RS1 MOV R4,125CYS: MOV R3,248DJNZ R3,$DJNZ R4,CYSRET。TABLE00:DW 64580,64684,64777,64820DW 64898,64968,65030,64260DW 64400,64524,65058,63835,64021。第一首《精忠報國》。TABLE10: DB 66H,52H,36H,22H,12H,12H,22H,32H,98H,84H,82H,92H,14H,12H,22HDB 32H,52H,22H,42H,38H,66H,52H,36H,22H,12H,22H,22H,32H,98HDB 24H,22H,32H,54H,52H,32H,92H,12H,92H,82H,98H,66H,52H,36H,22HDB 12H,12H,22H,32H,98H,84H,82H,92H,14H,12H,22H,32H,52H,22H,42H,38HDB 66H,52H,36H,22H,12H,22H,22H,32H,98H,24H,22H,32H,54H,52H,32HDB 22H,12H,92H,82H,98H,14H,24H,34H,44H,64H,0B4H,64H,32H,52HDB 62H,0B2H,62H,52H,38H,24H,22H,32H,54H,52H,62H,52H,32H,32H,22H,38HDB 64H,0B4H,64H,32H,52H,62H,0B2H,62H,52H,38H,22H,22H,22H,32H,52H,52HDB 52H,62H,7FH,74H,04H,58H,6FHDB 00。第二首《月亮代表我的心》。TABLE20: DB 02H,82HDB 16H,32H,54H,02H,52HDB 0A6H,32H,54H,02H,52HDB 64H,74H,0B6H,64HDB 52H,5CH,32H,22HDB 16H,12H,14H,32H,22HDB 16H,12H,14H,22H,32HDB 26H,12H,94H,22H,32HDB 2CHDB 32H,52HDB 36H,22H,14H,54HDB 0ACH,92H,0A2HDB 96H,0A2H,96H,82HDB 3CH,54HDB 36H,22H,14H,54HDB 0ACH,92H,0A2HDB 16H,12H,14H,22H,32HDB 2CH,02H,82HDB 16H,32H,56H,12HDB 0A6H,32H,56H,52HDB 66H,72H,0B6H,62HDB 62H,52H,58H,32H,22HDB 16H,12H,14H,32H,22HDB 16H,12H,14H,22H,32HDB 26H,92H,0A4H,12H,22HDB 1CHDB 00。第三首《看我七十二變》。TABLE30:DB 0d4H,84H,94H,82H,92HDB 12H,22H,82H,92H,02H,92H,82H,0d2HDB 82H,92H,14H,84H,02H,0d1H,0d1HDB 0c2H,0d2H,84H,0d2H,0d2H,82H,82HDB 84H,82H,82H,94H,82H,0d2HDB 82H,82H,82H,92H,02H,82H,82H,0d2HDB 0c4H,84H,0d4H,92H,0d2HDB 82H,0d2H,82H,92H,98HDB