单片机原理及应用课后习题答案雷娟版 冶金工业出版社Word格式.docx

单片机原理及应用课后习题答案雷娟版 冶金工业出版社Word格式.docx

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MOVB,#10H

DIVAB

MOV40H,A

MOV41H,B

MOVA,DPL

MOV42H,A

MOV43H,B

方法二：

ANLA,#0FH

MOV43H,A

SWAPA

MOVA,DPH

MOV41H,A

3-9

ORG0000H

MOVA,#0A4H

MOVB,#04H

MULAB

CLRC

ADDA,ACC

MOVR0,A

MOVA,#0

ADDCA,#0

MOVR1,A

MOVA,R0

MOVA,R1

ADDCA,ACC

MOVB,A

方法三：

MOVA,#0FFH

RLCA

;

MOVR0,A

MOVA,#0

ADDCA,#0

MOVR1,A

MOVA,R0

JNCWUJIN1

MOVR1,#1

WUJIN1:

INCR1

RLCA

JNCWUJIN2

INCR1

WUJIN2:

MOV20H,R1

MOVB,20H

MOVA,R1

ADDCA,ACC

MOVB,A

MOVA,R0

3-10

MOVR0,#30H

MOVR1,#20

MOVDPTR,#3000H

LOOP:

MOVA,@R0

MOVX@DPTR,A

INCR0

INCDPTR

DJNZR1,LOOP

3-11

MOVR3,#15

CJNER3,#15,JIXU

JIXU:

JNCLOOP

SJMP$

INCR3

END

3-12

MOVR0,#00H

CJNER0,#0,BUDENG

MOVR1,#0

BUDENG:

MOVR1,#0FFH

3-13

MOVDPTR,#2010H

MOVXA,@DPTR

ADDA,20H

3-14

3-15

第四章

4-1

MOVA,60H

XRLA,#0FH

MOV60H,A

4-2

MOVDPTR,#3100H

ADDA,R1

MOV50H,A

MOV51H,A

4-3

SUBBA,R1

JNCDA0

MOVR2,A

SJMPOVER

DA0:

MOVA,R0

OVER:

4-4

MOVA,20H

ANLA,#80H

JZZHENG

MOVA,20H

ADDA,#20

SJMPCUN

ZHENG:

CJNEA,#12,JIXU

JNCDA12

MOVB,#4

MULAB

DA12:

ADDA,ACC

SUBBA,#10

CUN:

MOV20H,A

4-5

MOVR0,#10H

MOVDPTR,#0000H

MOVR2,#49

MOVXA,@DPTR

MOV@R0,A

DJNZR2,LOOP

4-6

ORG0000H;

参照例4-14

MOVR0,#30H

MOVR2,#33

MOV51H,#00H

MOVA,@R0

JNZNEXT

ADDA,51H

NEXT:

INCR0

DECR2

CJNER2,#0,LOOP

4-7

ORG0000H;

参照例4-15

MOVR2,#00H

MOVR0,#5FH

INCR2

CJNE@R0,#24H,LOOP

MOVA,R2

4-8

4-9

MOVR0,#20H

MOVR2,#11

MOVR3,#00H

MOVR4,#00H

CJNEA,#88H,NEXT

MOVA,31H

CPLA

MOV31H,A

ADDA,R3

MOVR3,A

ADDCA,R4

MOVR4,A

ACALLPINGJUN;

求得的平均值放在A中

SJMP$

PINGJUN:

;

参照实验讲义双字节除法

4-10

MOVP1,#0FH

CALLYANSHI

MOVR0,#2

;

YAN2:

CALLYANSHI

DJNZR0,YAN2

MOVP1,#0F0H

MOVR1,#2

YAN22:

DJNZR1,YAN22

SJMPLOOP

YANSHI:

MOVR3,#10

D1:

MOVR4,#200

D2:

MOVR5,#250

DJNZR5,$

DJNZR4,D2

DJNZR3,D1

RET

END

4-11

题目有问题，A放不下立方结果

4-12

MOVC,P1.2

ANLC,/P1.1

MOVF0,C

MOVC,P1.1

ANLC,/P1.2

ORLC,F0

MOVP1.0,C

4-13

4-14

MOVR1,#250

MOVB,R1

CJNEA,B,DELAY

CMPA,R1

DELAY:

NOP

DJNZR1,DELAY

4-15

LJMPMAIN

ORG0100H

ACALLYAN

ORG0205H

YAN:

MOVP1,#0FFH

第五章

5-7

AJMPMAIN

ORG0013H

AJMPINT00

ORG0030H

SETBEA

SETBEX1

SETBIT1

MOVP1,#0FFH

ORG0100H

INT00:

MOVA,P1

MOVP1,A

RETI

5-8

ORG0003H

SETBEA

SETBEX0

CLRIT0

MOVP0,#0FFH

MOVP0,#00H

MOVR3,#30

END

5-9

AJMPINT10

MOVP0,#0FFH

CLRIT1

INT10:

JBP1.0,INT11

JBP1.1,INT12

JBP1.2,INT13

JBP1.3,INT14

INT11:

MOVP0,#0FEH

CALLDELAY

INT12:

MOVP0,#0FDH

INT13:

MOVP0,#0FBH

INT14:

MOVP0,#0F7H

MOVR3,#50

第六章

6-8

MOVTMOD,#01H;

T0工作模式1

MOVP1,#0FFH

SETBTR0

MOVTH0,#3CH

MOVTL0,#0B0H

CHECK:

JNBTF0,CHECK

CLRTF0

MOVA,P1

AJMPLOOP

6-9

查询方式

MOVTMOD,#60H

CLRP1.0

MOVTH1,#0FBH

MOVTL1,#0FBH

SETBTR1

JNBTF1,CHECK

CLRTF1

CPLP1.0

6-10

ORG000BH

AJMPTIME0

MOVTMOD,#00010101B

SETBET0

SETBP1.0

CLRP1.1

MOVTH0,#0FFH

MOVTL0,#0FFH

TIME0:

SETBP1.1

MOVTH1,#0FFH

MOVTL1,#06H

CHECK1:

JNBTF1,CHECK1

CHECK2:

JNBTF1,CHECK2

CPLP1.1

END