汇编语言要求编写一个时钟程序用八位数码管实现时分秒的计时功能

2025-02-15 17:02:42

推荐回答（2个）

回答1：

我以前做的一个6位数码管的时钟程序，你可以看看，其实6位足够了。

KEYVAL EQU 30H

KEYTM EQU 31H

KEYSCAN EQU 32H

DAT EQU 33H

SCANLED EQU 39H

CLK EQU 77H

SEC EQU 78H

MIN EQU 79H

HOUR EQU 7AH

PAUSE BIT 00H

DOT BIT 01H

ORG 0000H

LJMP MAIN

ORG 000BH

LJMP T0ISR ;50ms定时

ORG 001BH

LJMP T1ISR ;扫描显示

ORG 0030H

MAIN:

MOV SP,#5FH

MOV TMOD,#11H

MOV TH0,#03CH

MOV TL0,#0B0H

MOV TH1,#0ECH

MOV TL1,#078H

MOV KEYVAL,#0

MOV SCANLED,#0

MOV 33H,#10H

MOV 34H,#10H

MOV 35H,#10H

MOV 36H,#10H

MOV 37H,#10H

MOV 38H,#10H

MOV SEC,#0

MOV MIN,#0

MOV HOUR,#0

MOV CLK,#0

CLR PAUSE

SETB EA

SETB ET1

SETB TR1

LOOP:

LCALL KEYSEL

MOV A,KEYVAL

CJNE A,#0FFH,LOOP1

SJMP LOOP

LOOP1:

CJNE A,#10,LOOP2 ;“ON”启动

SETB TR0

SETB ET0

SETB PAUSE

SJMP LOOP

LOOP2:

CJNE A,#11,LOOP3 ;“=”清零

MOV SEC,#0

MOV MIN,#0

MOV HOUR,#0

LCALL DISCHG

SJMP LOOP

LOOP3:

CJNE A,#15,LOOP4 ;“+”暂停

CLR TR0

CLR ET0

CLR PAUSE

SJMP LOOP

LOOP4:

CJNE A,#14,LOOP5 ;“-”清显示暂停

MOV 33H,#10H

MOV 34H,#10H

MOV 35H,#10H

MOV 36H,#10H

MOV 37H,#10H

MOV 38H,#10H

CLR TR0

CLR ET0

CLR PAUSE

SJMP LOOP

LOOP5:

CJNE A,#10,LOOP6 ;数字键

LOOP6:

JC LOOP7

LJMP LOOP

LOOP7:

JNB PAUSE,LOOP8 ;暂停状态可以输入数字键

LJMP LOOP

LOOP8:

MOV 33H,34H

MOV 34H,35H

MOV 35H,36H

MOV 36H,37H

MOV 37H,38H

MOV 38H,KEYVAL

MOV A,33H

SWAP A

ORL A,34H

LCALL BCDH

MOV HOUR,A

MOV A,35H

SWAP A

ORL A,36H

LCALL BCDH

MOV MIN,A

MOV A,37H

SWAP A

ORL A,38H

LCALL BCDH

MOV SEC,A

LJMP LOOP

;------------------

;BCD转换为十六进制

BCDH:

MOV B,#10H

DIV AB

MOV R7,B

MOV B,#10

MUL AB

ADD A,R7

RET

;------------------

;十六进制转换为BCD

HBCD:

MOV B,#10

DIV AB

SWAP A

ORL A,B

RET

;------------------

KEYSEL:

MOV KEYVAL,#0

MOV KEYSCAN,#0EFH

LCALL GETKEY

MOV A,KEYTM

JZ KEYS1

MOV KEYVAL,A

SJMP KEYRTN

KEYS1:

MOV KEYSCAN,#0DFH

LCALL GETKEY

MOV A,KEYTM

JZ KEYS2

CLR C

ADD A,#4

MOV KEYVAL,A

SJMP KEYRTN

KEYS2:

MOV KEYSCAN,#0BFH

LCALL GETKEY

MOV A,KEYTM

JZ KEYS3

CLR C

ADD A,#8

MOV KEYVAL,A

SJMP KEYRTN

KEYS3:

MOV KEYSCAN,#7FH

LCALL GETKEY

MOV A,KEYTM

JZ KEYRTN

CLR C

ADD A,#12

MOV KEYVAL,A

KEYRTN:

LCALL CHGKEY

RET

;--------------------

GETKEY:

MOV KEYTM,#0

MOV A,KEYSCAN

MOV P3,A

NOP

MOV A,P3

ANL A,#0FH

XRL A,#0FH

JZ NOKEY

MOV R2,#10

LCALL DELAY

MOV A,P3

ANL A,#0FH

XRL A,#0FH

JZ NOKEY

MOV A,P3

ANL A,#0FH

MOV R7,A

SF:

MOV A,P3

ANL A,#0FH

XRL A,#0FH

JNZ SF

MOV A,R7

CJNE A,#0EH,NK1

MOV KEYTM,#1

SJMP NOKEY

NK1:

CJNE A,#0DH,NK2

MOV KEYTM,#2

SJMP NOKEY

NK2:

CJNE A,#0BH,NK3

MOV KEYTM,#3

SJMP NOKEY

NK3:

CJNE A,#07H,NOKEY

MOV KEYTM,#4

NOKEY: RET

;--------------------

DELAY:

MOV R3,#50

DELAY1:

MOV R4,#100

DJNZ R4,$

DJNZ R3,DELAY1

DJNZ R2,DELAY

RET

;--------------------

T0ISR:

PUSH ACC

CLR TR0

MOV TH0,#3CH

MOV TL0,#0B0H

SETB TR0

INC CLK

MOV A,CLK

CJNE A,#20,T0ISRE

MOV CLK,#0

INC SEC

MOV A,SEC

CJNE A,#60,T0ISRE

MOV SEC,#0

INC MIN

MOV A,MIN

CJNE A,#60,T0ISRE

MOV MIN,#0

INC HOUR

MOV A,HOUR

CJNE A,#24,T0ISRE

MOV SEC,#0

MOV MIN,#0

MOV HOUR,#0

T0ISRE:

LCALL DISCHG

POP ACC

RETI

;--------------------

DISCHG:

MOV A,HOUR

LCALL HBCD

PUSH ACC

ANL A,#0FH

MOV 34H,A

POP ACC

ANL A,#0F0H

SWAP A

MOV 33H,A

MOV A,MIN

LCALL HBCD

PUSH ACC

ANL A,#0FH

MOV 36H,A

POP ACC

ANL A,#0F0H

SWAP A

MOV 35H,A

MOV A,SEC

LCALL HBCD

PUSH ACC

ANL A,#0FH

MOV 38H,A

POP ACC

ANL A,#0F0H

SWAP A

MOV 37H,A

RET

;--------------------

T1ISR:

PUSH ACC

CLR TR1

MOV TH1,#0ECH

MOV TL1,#78H

SETB TR1

MOV DPTR,#LEDTAB

T100:

MOV R0,#DAT

MOV A,SCANLED

ADD A,R0

MOV R0,A

MOV A,SCANLED

JNZ T101

MOV P2,#01H

CLR DOT

SJMP T1DIS

T101:

DEC A

JNZ T102

MOV P2,#02H

SETB DOT

SJMP T1DIS

T102:

DEC A

JNZ T103

MOV P2,#04H

CLR DOT

SJMP T1DIS

T103:

DEC A

JNZ T104

MOV P2,#08H

SETB DOT

SJMP T1DIS

T104:

DEC A

JNZ T105

MOV P2,#10H

CLR DOT

SJMP T1DIS

T105:

MOV P2,#20H

CLR DOT

T1DIS:

MOV A,@R0

MOVC A,@A+DPTR

JNB DOT,T1DIS1

ORL A,#01H

T1DIS1:

CPL A

MOV P0,A

INC SCANLED

MOV A,SCANLED

CJNE A,#6,T1END

MOV SCANLED,#0

T1END:

POP ACC

RETI

;--------------------

CHGKEY:

MOV A,KEYVAL

JZ KV16

DEC A

JNZ KV01

MOV KEYVAL,#7

RET

KV01:

DEC A

JNZ KV02

MOV KEYVAL,#4

RET

KV02:

DEC A

JNZ KV03

MOV KEYVAL,#1

RET

KV03:

DEC A

JNZ KV04

MOV KEYVAL,#10

RET

KV04:

DEC A

JNZ KV05

MOV KEYVAL,#8

RET

KV05:

DEC A

JNZ KV06

MOV KEYVAL,#5

RET

KV06:

DEC A

JNZ KV07

MOV KEYVAL,#2

RET

KV07:

DEC A

JNZ KV08

MOV KEYVAL,#0

RET

KV08:

DEC A

JNZ KV09

MOV KEYVAL,#9

RET

KV09:

DEC A

JNZ KV10

MOV KEYVAL,#6

RET

KV10:

DEC A

JNZ KV11

MOV KEYVAL,#3

RET

KV11:

DEC A

JNZ KV12

MOV KEYVAL,#11

RET

KV12:

DEC A

JNZ KV13

MOV KEYVAL,#12

RET

KV13:

DEC A

JNZ KV14

MOV KEYVAL,#13

RET

KV14:

DEC A

JNZ KV15

MOV KEYVAL,#14

RET

KV15:

DEC A

JNZ KV16

MOV KEYVAL,#15

RET

KV16:

MOV KEYVAL,#0FFH

RET

;--------------------

LEDTAB: DB 0FCH ;"0" 00H

DB 60H ;"1" 01H

DB 0DAH ;"2" 02H

DB 0F2H ;"3" 03H

DB 66H ;"4" 04H

DB 0B6H ;"5" 05H

DB 0BEH ;"6" 06H

DB 0E0H ;"7" 07H

DB 0FEH ;"8" 08H

DB 0F6H ;"9" 09H

DB 0EEH ;"A" 0AH

DB 3EH ;"B" 0BH

DB 9CH ;"C" 0CH

DB 7AH ;"D" 0DH

DB 9EH ;"E" 0EH

DB 8EH ;"F" 0FH

DB 00H ;" " 10H

;--------------------

END

回答2：

c++还是很难的哦

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汇编语言要求编写一个时钟程序 用八位数码管实现时分秒的计时功能

汇编语言要求编写一个时钟程序用八位数码管实现时分秒的计时功能