【正文】 附錄一程序清單：/***********主程序****************/ ORG 0000H AJMP MAIN ORG 000BH AJMP DVT0 ORG 0100HMAIN: MOV PSW,00H MOV R0,00H MOV A,00H MOV SP,43H N0 EQU 30H D0 EQU 36H MOV TMOD,01H MOV TH0,0B1H MOV TL0,0DFH SETB ET0 SETB EA SETB TR0 SJMP $ DVT0: CPL MOV TH0,0B1H MOV TL0,0DFH RETILOOP2: LCALL KEY MOV A,42H CJNE A,0BH,LOOP3 LCALL CUNCHELOOP3: MOV A,42H CJNE A,0FH,LOOP2 LCALL QUCHESERIA: MOV TMOD,21H MOV TH1,0FH SETB TR1 SETB ES SETB PS/***********顯示子程序************/DISPLAY:MOV R7,00H MOV R6,8D1: MOV DPTR,6000H MOV A,N0 MOVX DPTR,A MOV DPTR,6001H MOV A,D0 MOVX DPTR,A LJMP D2ms DEC R6 CJNE R6,00H,D1SEGTAB: DB 0C0H,0F9H,0A4H,0B0H,99H DB 92H,82H,0F8H,80H,90H DB 88H,83H,0C6H,0A1H,86H DB 8EH,0BFH,8CH,0FFH RET/***********鍵盤(pán)掃描子程序************/KEY: MOV DPTR,6003H MOV A,89H MOVX DPTR,A ACALL KS1 JNZ LK1 LCALL DISPLAY AJMP KEYLK1: LCALL DISPLAY ACALL KS1 JNZ LK2 LCALL DISPLAY AJMP KEYLK2: MOV R2,0FEH MOV R4,00HLK4: MOV DPTR,6000H MOV A,R2 MOVX DPTR,A INC DPTR INC DPTR MOVX A,DPTR JB ,LONE MOV A,00H AJMP LKPLONE: JB ,NEXT MOV A,08H AJMP LKPLKP: ADD A,R4 PUSH ACCLK3: LCALL DISPLAY ACALL KS1 JNZ LK3 POP ACC RETNEXT: INC R4 MOV A,R2 JNB ,KND RL A MOV R2,A AJMP LK4KND: AJMP KEYKS1: MOV DPTR,6000H MOV A,00H MOVX DPTR,A INC DPTR INC DPTR MOVX A,DPTR CPL A ANL A,0FH MOV 42H,A RET/***********延時(shí)子程序***********/D2ms: MOV R5,2D1ms: MOV R3,249 DELAY: NOP NOP DJNZ R3,DELAY DJNZ R5,D1ms RET/***********存車(chē)子程序***********/CUNCHE: AJMP PERF MOV DPH,33H MOV DPL,32H MOV A,34H MOVX DPTR,A INC DPTR MOV A,36H MOVX DPTR,A INC DPTR MOV A,36H MOVX DPTR,A INC DPTR MOV A,36H MOVX DPTR,A INC DPTR MOV A,36H MOVX DPTR,A INC DPTR MOV A,36H MOVX DPTR,A INC DPTR MOV A,36H MOVX DPTR,A MOV A,0 MOV SBUF,A CLR TI MOV SBUF,34H CLR TI MOV SBUF,36H CLR TI MOV SBUF,37H CLR TI MOV SBUF,38H CLR TI MOV SBUF,39H CLR TI MOV SBUF,40H CLR TI MOV SBUF,41H CLR TI RET /***********取車(chē)子程序***********/QUCHE: PUSH 01H MOV R1,40 MOV DPTR,0000H MOVX A,DPTR CJNE A,34H,FAIL INC DPTR MOVX A,DPTR CJNE A,36H,FAIL INC DPTR MOVX A,DPTR CJNE A,37H,FAIL INC DPTR MOVX A,DPTR CJNE A,38H,FAIL INC DPTR MOVX A,DPTR CJNE A,39H,FAIL INC DPTR MOVX A,DPTR CJNE A,40H,FAIL INC DPTR MOVX A,DPTR INC DPTR INC DPTR INC DPTR INC DPTR INC DPTR INC DPTR INC DPTR INC DPTR CJNE A,41H,FAIL PUSH 02H MOV R2,8 MOV A,01H MOV N0,A MOV D0,36H LJMP DISPLAY RL A MOV N0,A MOV D0,37H LJMP DISPLAY RL A MOV N0,A MOV D0,38H LJMP DISPLAY RL A MOV N0,A MOV D0,39H LJMP DISPLAY RL A MOV N0,A MOV D0,40H LJMP DISPLAY RL A MOV N0,A MOV D0,41H LJMP DISPLAY MOV A,34H MOV SBUF,A CLR TI PUSH 00H PUSH 06H CIR: MOV R0,36H MOV R6,8 MOV R0,36H MOV A,R0 MOV SBUF,A CLR TI INC R0 DJNZ R6,CIR POP 06H POP 00HFAIL: DJNZ R1,FAIL POP 02H POP 01H RET/***********最優(yōu)子程序***********/PERF: MOV R1,40 MOV DPTR,0000HCIRCLE: MOVX A,DPTR JZ ANSWER INC DPTR INC DPTR INC DPTR INC DPTR INC DPTR INC DPTR INC DPTR DJNZ R1,CIRCLEANSWER: MOV 33H,DPH MOV 32H,DPL DEAL: JNZ NOZONE INC A MOV 34H,ANOZONE: MOV N0,03H MOV DPTR,SEGTAB MOVC A,A+DPTR MOV D0,A LJMP DISPLAY RET END外文資料Parking control systemThe mains