LED显示花样汇编程序.doc

LED显示3个花样汇编程序：START: MOV P1,#0FFH MOV R4,#00H D3:CJNE R4,#00H,D5 ;花样1 2 3 ST ?-0 4 5 6 7 8 1.2.3 D4: D40:MOV R2,#0FEH MOV R3,#07H D41:MOV A,P1 CJNE A,#0FFH,D42 MOV A,R2 MOV P0,A RL A MOV R2,A ACALL DELAY DJNZ R3,D41 MOV R2,#7FH MOV R3,#08H D410:MOV A,P1 CJNE A,#0FFH,D42 MOV A,R2 MOV P0,A RR A MOV R2,A ACALL DELAY DJNZ R3,D410 JMP D400 D42:ACALL D1 JMP D3 D400:MOV R3,#04H D401:MOV A,P1 CJNE A,#0FFH,D402 MOV A,#0AAH MOV p0,A LCALL DELAY MOV A,#55H MOV p0,A LCALL DELAY DJNZ R3,D401 JMP D4000 D402:ACALL D1 JMP D3 D4000:MOV R2,#0FFH MOV R3,#09H D4001:MOV A,P1 CJNE A,#0FFH,D4002 MOV A,R2 CLR C RLC A MOV R2,A MOV P0,A ACALL DELAY DJNZ R3,D4001 MOV R3,#09HD40010:MOV A,P1 CJNE A,#0FFH,D4002 MOV A,R2 SETB C RRC A MOV R2,A MOV P0,A ACALL DELAY DJNZ R3,D40010 JMP D4 D4002:ACALL D1 JMP D3 D5:CJNE R4,#01H,D6 D50:MOV R2,#0FEH MOV R3,#07H D51: D510:MOV A,P1 CJNE A,#0FFH,D52 MOV A,R2 MOV P0,A RL A MOV R2,A ACALL DELAY DJNZ R3,D510 MOV R2,#7FH MOV R3,#08H D511:MOV A,P1 CJNE A,#0FFH,D52 MOV A,R2 MOV P0,A RR A MOV R2,A ACALL DELAY DJNZ R3,D511 JMP D50 D52:ACALL D1 JMP D3 D6:CJNE R4,#02H,D7 D60:MOV R3,#04h D61:MOV A,P1 CJNE A,#0FFH,D62 MOV A,#0AAH MOV p0,A LCALL DELAY MOV A,#55H MOV p0,A LCALL DELAY DJNZ R3,D61 JMP D60 D62:ACALL D1 JMP D3 D7:CJNE R4,#03H,D8 D70:MOV R2,#0FFH MOV R3,#09H D71:MOV A,P1 CJNE A,#0FFH,D72 MOV A,R2 CLR C RLC A MOV R2,A MOV P0,A ACALL DELAY DJNZ R3,D71 MOV R3,#09H D710:MOV A,P1 CJNE A,#0FFH,D72 MOV A,R2 SETB C RRC A MOV R2,A MOV P0,A ACALL DELAY DJNZ R3,D710 JMP D70 D72:ACALL D1 JMP D3 D8:LJMP D4 D1: ACALL DELAY1 MOV A,P1 CPL A MOV R4,#00HD2: RR A CLR ACC.7 ;必须的 INC R4 JNZ d2D20:MOV A,P1 CJNE A,#0FFH,d20 ACALL DELAY1 RET ;- 延时程序DELAY1: MOV R7,#01H ; 消抖延时程序 10mS DL1: MOV R6,#26H DL0: MOV R5,#82H DJNZ R5,$ DJNZ R6,DL0 DJNZ R7,DL1 RET DELAY: MOV 32H,#1DH