基于某总汇编语言编写的数码管显示时钟程序Word文档下载推荐.docx

基于某总汇编语言编写的数码管显示时钟程序Word文档下载推荐.docx

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MOVR0,#00H

MOVR1,#00H

MOVP0,#0FFH

MOVSHI,#00H

MOVFEN,#00H

MOVMIAO,#00H

MOVCHANGE,#00H

SETBTR0//打开定时器

M1:

LJMPKEY//键盘扫描

M2:

LCALLINIT//动态显示

LJMPM1

INIT:

MOVA,SHI//显示函数

MOVB,#0AH

DIVAB

MOV40H,A

MOV41H,B

CLRP2.0

CLRP2.1

CLRP2.2

JNBF0,O1

CJNECHANGE,#00H,O1

CJNER1,#0,O1

MOVP1,#00H

CPLP2.7

LCALLDELAY

LJMPO10

O1:

MOVDPTR,#TABLE

MOVA,40H

MOVCA,@A+DPTR

MOVP1,A

O10:

SETBP2.2

JNBF0,O2

CJNECHANGE,#00H,O2

CJNER1,#0,O2

LJMPO20

O2:

MOVDPTR,#TABLE

MOVA,41H

LCALLDELAY

O20:

CLRP2.0//显示小时

SETBP2.1

MOVP1,#040H

LCALLDELAY//显示分隔符

MOVA,FEN

MOV41H,B

CLRP2.0

JNBF0,O3

CJNECHANGE,#01H,O3

CJNER1,#0,O3

LJMPO30

O3:

O30:

SETBP2.0

JNBF0,O4

CJNECHANGE,#01H,O4

CJNER1,#0,O4

LJMPO40

O4:

MOVP1,A

LCALLDELAY

MOVP1,#00H//显示分钟

O40:

MOVA,MIAO

SETBP2.0

JNBF0,O5

CJNECHANGE,#02H,O5

CJNER1,#0,O5

LJMPO50

O5:

O50:

JNBF0,O6

CJNECHANGE,#02H,O6

CJNER1,#0,O6

LJMPO60

O6:

MOVP1,#00H//显示秒

O60:

RET

KEY:

MOVA,P0

XRLA,#0FFH

CJNEA,#00H,A1

LJMPM2

A1:

LCALLDELAY1

MOVA,P0

CJNEA,#00H,KEY1

KEY1:

CJNEA,#80H,KEY2//按键1、开始键

SETBF0

//CLRTR0

JNBP0.7,$

KEY2:

CJNEA,#40H,KEY3//按键2、切换键

JNBF0,B1

INCCHANGE

MOVA,CHANGE

CJNEA,#03,B2

B1:

JNBP0.6,$

B2:

KEY3:

CJNEA,#20H,KEY4//按键3、加键

JNBF0,C1

CJNEA,#00,C2

INCSHI

CJNESHI,#24,C1

MOVSHI,#00H

C1:

JNBP0.5,$

C2:

CJNEA,#01,C4

INCFEN

CJNEFEN,#60,C3

C3:

C4:

INCMIAO

CJNEMIAO,#60,C5

C5:

KEY4:

CJNEA,#10H,KEY5//按键4、减键

JNBF0,D1

CJNEA,#00,D2

CJNESHI,#00H,D0

MOVSHI,#24

D0:

DECSHI

D1:

JNBP0.4,$

D2:

CJNEA,#01,D3

CJNEFEN,#00H,D00

MOVFEN,#60

D00:

DECFEN

JNBP0.4,$

D3:

CJNEMIAO,#00H,D000

MOVMIAO,#60

D000:

DECMIAO

KEY5:

JNBF0,D0000//按键5、停止键

CLRF0

D0000:

JNBP0.3,$

ITOR:

MOVTH0,#3CH

MOVTL0,#0B0H

INCR0

JNBF0,E0

CPLP2.6

INC44H

MOVA,44H

CJNEA,#5,RETURN

MOV44H,#00H

LJMPE1

E0:

CJNER0,#19,RETURN

MOVR0,#00H

JBF0,E1

CJNEMIAO,#60,RETURN

CJNEFEN,#60,RETURN

CJNESHI,#24,RETURN

LJMPRETURN

E1:

INCR1

CJNER1,#2,RETURN

MOVR1,#0

RETURN:

RETI

DELAY:

MOVR7,#255

DJNZR7,$

RET

DELAY1:

MOVR6,#115//10mS

DL1:

MOVR7,#248

DJNZR6,DL1

RET

TABLE:

DB3FH,06H,5BH,4FH

DB66H,6DH,7DH,07H

DB7FH,6FH

END