【正文】 INC SEC MOV A,SEC CJNE A,60,CONT_SCAN MOV SEC,00H INC MIN 24 MOV A,MIN CJNE A,60,CONT_SCAN MOV MIN,00H INC HOR MOV A,HOR CJNE A,24,CONT_SCAN MOV HOR,00H INC DAT MOV A,DAT CJNE A,30,CONT_SCAN MOV DAT,00 INC MOT MOV A,MOT CJNE A,12,CONT_SCAN MOV MOT,00 INC YER 25 MOV A,YER CJNE A,99,CONT_SCAN LCALL DEL CONT_SCAN:MOV A,SEC MOV B,02 DIV AB MOV A,B CJNE A,00,LOPK MOV SHAN,10 LOPK: CJNE A,01,LOPL MOV SHAN,11 LOPL:MOV A,SXX CJNE A,01,LK1 MOV A,LED_LP MOV B,125 DIV AB 26 CJNE A,0,LLL1 MOV LED1,10 MOV LED2,10 LJMP LLL2 LK1:MOV A,SXX CJNE A,02,LK2 MOV A,LED_LP MOV B,125 DIV AB CJNE A,0,LLL1 MOV LED3,10 MOV LED4,10 LJMP LLL3 LK2:MOV A,SXX 27 CJNE A,03,LLL1 MOV A,LED_LP MOV B,125 DIV AB CJNE A,0,LLL1 MOV LED5,10 MOV LED6,10 LJMP LKMM LLL1:MOV A,HOR LCALL BIN_BCD MOV LED2,B MOV LED1,A LLL2:MOV A,MIN LCALL BIN_BCD MOV LED4,B MOV LED3,A 28 LLL3:MOV A,SEC LCALL BIN_BCD MOV LED6,B MOV LED5,A LKMM:MOV A,LED_LP MOV B,08 DIV AB MOV A,B RL A MOV DPTR,TAB_SCAN JMP A+DPTR TAB_SCAN: AJMP SCAN_L1 AJMP SCAN_L2 AJMP SCAN_L3 AJMP SCAN_L4 AJMP SCAN_L5 AJMP SCAN_L6 AJMP SCAN_L7 AJMP SCAN_L8 SCAN_L1: MOV DIG_PORT,0 29 MOV A,LED1 JMP END_SCAN SCAN_L2: MOV DIG_PORT,1 MOV A,LED2 JMP END_SCAN SCAN_L3: MOV DIG_PORT,2 MOV A,11 JMP END_SCAN SCAN_L4: MOV DIG_PORT,3 MOV A,LED3 JMP END_SCAN SCAN_L5: MOV DIG_PORT,4 MOV A,LED4 JMP END_SCAN SCAN_L6: MOV DIG_PORT,5 MOV A,SHAN JMP END_SCAN SCAN_L7: MOV DIG_PORT,6 MOV A,LED5 JMP END_SCAN 30 SCAN_L8: MOV DIG_PORT,7 MOV A,LED6 END_SCAN: MOV DPTR,TAB_LED MOVC A,A+DPTR MOV LED_PORT,A POP PSW POP ACC RETI TAB_LED: DB 3FH,06H,5BH,4FH 。 T0_INT: PUSH ACC PUSH PSW MOV TH0,0F0H 。 DEL: MOV R5,07 。秒加 1 SETB F_BEEP LCALL DEL CLR F_BEEP 22 JMP WAIT_KEY SW6_OK: MOV SXX,03 MOV A,SEC CJNE A,00,SW6_OVER MOV SEC,59 SETB F_BEEP LCALL DEL CLR F_BEEP JMP WAIT_KEY SW6_OVER:DEC SEC 。分加 1 SETB F_BEEP LCALL DEL CLR F_BEEP JMP WAIT_KEY SW4_OK: MOV SXX,02 MOV A,MIN CJNE A,00,SW4_OVER MOV MIN,59 SETB F_BEEP 21 LCALL DEL CLR F_BEEP JMP WAIT_KEY SW4_OVER:DEC MIN 。時加 1 MOV R7,HOR 19 SETB F_BEEP LCALL DEL CLR F_BEEP JMP WAIT_KEY SW2_OK: MOV SXX,01 MOV A,HOR CJNE A,00,SW2_OVER MOV HOR,23 SETB F_BEEP LCALL DEL CLR F_BEEP JMP WAIT_KEY SW2_OVER:DEC HOR 。 允許所有中斷 。允許外部中斷 0 SETB EX1 。開定時器 0 SETB ET0 。定時器 1 中斷級別最高 CLR PT0 。初始化 RAM 區(qū) , CLR_RAM:MOV A,00H MOV R0,A DJNZ R0,CLR_RAM MOV P1,0FFH MOV P2,0FFH MOV P0,0FFH MOV P3,0FFH MOV TMOD,11H MOV TH0,0F0H 。年月日緩存 MOT EQU 37H DAT EQU 38H SXX EQU 39H F_BEEP BIT 01H LED_PORT EQU P0 DIG_PORT EQU P2 SW0 BIT SW8 14 BIT SW1 BIT SW2 BIT SW3 BIT SW4 BIT SW5 BIT SW6 BIT SW7 BIT 。秒值緩存 NHOR EQU 33H 。小時值緩存 MIN EQU 31H 。數(shù)