初级汇编语言

焰灵姬 發表於 2020-5-22 23:23:00

汇编调试程序DEBUG的常用命令和功能，DEBUG环境下调试程序的方法.
 
<ol>
<li>两个无符号数相加，将结果数存入指定地址单元。被加数，加数及和存放地址及数据如下：</li>
</ol>
             地址             数据
被加数 2000：0000         9FH
       2000：0001         6BH
 加数  2000：0002         5CH
       2000：0003         42H
  和   2000：0004          
     ~ 2000：0006
 
<div class="cnblogs_code">
-e 2000:0000 9f 6b 5c 42 -a 1000:0 mov ax, mov bx, add ax,bx mov 2000:,ax -r cs 1000 -r ip 0 -t-t-t -t

</div>
 
<img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200522170709021-1317484005.jpg" alt="">
 
 
　　2.两个无符号数相减，将差存入指定地址单元。被减数，减数及差的存放地址及数据如下：
             地址             数据
被减数    2000：0100          8C
          2000：0101          42
  减数    2000：0102          92
          2000：0103          5A
  差      2000：0104
          2000：0105
 
<div class="cnblogs_code">
-e 2000:0100 8c 42 92 5a -a 1000:0 mov ax,2000: mov bx,2000: sub ax,bx mov 2000:,ax -r cs 1000 -r ip 0 -t -t -t -t

</div>
 
<img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200522170829923-163503163.jpg" alt="">
 
　　3.两个无符号数相乘，将积存入指定地址单元。被乘数，乘数及积存放的地址及数据如下：
              地址            数据
被乘数    2000：1000           56
          2000：1001           2C
  乘数    2000：1002           3A
          2000：1003           1C
  积      2000：1004
        ~ 2000：1007
 
<div class="cnblogs_code">
-e 2000:0200 56 2C 3A 1C -a 1000:0000 mov ax,2000: mov bx,2000: mul bx mov 2000:,ax mov 20000:,dx -r cs 1000 -r ip 0 -t -t -t -t -t

</div>
 
<img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200522170904113-400315826.jpg" alt="">
 
　　4.两个无符号数相除，将商及余数存入指定的地址单元。被除数，除数，商及余数存放的地址及数据如下：
             地址             数据
被除数    2000：0200          2A
          2000：0201          3B
          2000：0202          4C
          2000：0203          5D
  除数    2000：0204          7C
          2000：0205          5D
  商      2000：0206
          2000：0207
  余数    2000：0208
          2000：0209
 
<div class="cnblogs_code">
-e 2000:0200 2a 3b 4c 5d 7c 5d -a 1000:0 mov ax,2000: mov bx,2000: div bx mov 2000:,ax mov 2000:,dx -r cs 1000 -r ip 0 -t -t -t -t -t

</div>
 
<img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200522170931671-2120548304.jpg" alt="">
 
屏幕显示计算机提问:
Do you like this book ?
若用户回答N, 计算机回答:
You may go to the next store.
若用户回答Y, 计算机回答:
  I think you will buy it.
 
<div class="cnblogs_code">
<pre>DATA SEGMENT
SEN1 DB 0DH,0AH,"Do you like this book ",0x3fh,0DH,0AH,"$"
SEN2 db 0DH,0AH,"You may go to the next store.",0DH,0AH,"$"
SEN3 DB 0DH,0AH,"I think you will buy it",0DH,0AH,"$"
SEN4 DB 0DH,0AH,"Please input a word(Y or N)",0DH,0AH,"$"
DATA ENDS

CODE SEGMENT
ASSUME DS:DATA,CS:CODE
START:MOV AX,DATA
MOV DS,AX
MOV Ah,2h
MOV BH,0
MOV DH,5
MOV DL,12
INT 10H

BEAGIN: MOV DX,OFFSET SEN1
MOV AH,09H
INT 21H

MOV AH,01H
INT 21H
MOV AH,09H
CMP AL,'N'
JE NOT
CMP AL,'Y'
JE OK
CMP AL,'Q'
JE END
JMP KEY
OK: MOV DX,OFFSET SEN2
INT 21H
JMP BEAGIN

NOT: MOV DX,OFFSET SEN3
INT 21H
JMP BEAGIN

KEY:MOV DX,OFFSET SEN4
INT 21H
JMP BEAGIN
END: NOP
MOV AH,4CH
INT 21H
CODE ENDS
END START</pre>
</div>
<img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200522171145900-1701489745.jpg" alt="" width="600" height="450">
屏幕显示计算机提问:
Would you like tea or coffee?
用户用键盘输入回答,并显示出来.
 
<div class="cnblogs_code">
<pre>DATA SEGMENT
SEN DB 0dh,0ah,"Would you like tea or coffee",0x3fh,0dh,0ah,"$"
SEN2 DB 0dh,0ah,"Your input is:","$"
SEN3 DB 0DH,0AH,"$"
STRING DB 20,0,20 DUP(0)
DATA ENDS

CODE SEGMENT
ASSUME DS:DATA,CS:CODE
START:MOV AX,DATA
MOV DS,AX
MOV Ah,2h
MOV BH,0
MOV DH,5
MOV DL,12
INT 10H

MOV DX,OFFSET SEN
MOV AH,09H
INT 21H

MOV DX,OFFSET STRING
MOV AH,0AH
INT 21H
MOV CL,STRING+1
XOR CH,CH
ADD DX,CX
MOV BX,DX
MOV BYTE PTR,'$'
MOV AH,09H
MOV DX,OFFSET SEN3
INT 21H
MOV DX,OFFSET STRING
ADD DX,2
INT 21H

MOV AH,4CH
INT 21H
CODE ENDS
END START</pre>
</div>
 <img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200522193936819-1021180850.png" alt="" width="934" height="450">
 
<div> 按宏汇编语言程序的格式,采用INT 21H  0A号功能调用显示一字符串:    ‘I  hope  you  work  hard</div>
<div>
<div class="cnblogs_code">
<pre>DATA SEGMENT
SEN DB 30,0,30 DUP(0)
QUE DB "Please input a string which would be displayed on the screen:",0dh,0ah,"$"
QUE1 DB 0dh,0ah,"Your input sentence is :",0dh,0ah,"$"
DATA ENDS

CODE SEGMENT
ASSUME CS:CODE,DS:DATA
START:MOV AX,DATA
MOV DS,AX
MOV AH,9
MOV DX,OFFSET QUE
INT 21H

MOV AH,0AH
MOV DX,OFFSET SEN
INT 21H
MOV CL,SEN+1
MOV CH,0
ADD DX,CX
MOV BX,DX
MOV BYTE PTR,"$"
MOV AH,9
LEA DX,QUE1
INT 21H
LEA DX,SEN
ADD DX,2
INT 21H

MOV AH,4CH
INT 21H
CODE ENDS
END START</pre>
</div>
<img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200523143321779-1981105607.png" alt="" width="934" height="450">
</div>
按宏汇编语言程序程序的格式,采用INT 21H 2号功能调用显示: ‘ I like computer very much
 
<div class="cnblogs_code">
<pre>data segment
str db "I like computer very much."
count EQU $-str
data ends

code segment
assume ds:data, cs:code
start:mov ax, data
mov ds, ax

MOV AH,2
MOV DH,10
MOV DL,20
INT 10H
mov di, offset str
mov cx, count
MOV AH,02H
S:PUSH CX
MOV CX,1
MOV BH,0
MOV AH,9
MOV BL,10100101B
INT 10H
MOV AH,2
mov DL,
int 21h
INC DI
POP CX
LOOP S

MOV AH,4CH
INT 21H

code ends
end start</pre>
</div>
<img src="https://img2020.cnblogs.com/blog/1921103/202005/1921103-20200523234653074-249645808.png" alt="" width="934" height="450"> 
来源：https://www.cnblogs.com/a-runner/p/12939357.html

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初级汇编语言