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中国DOS联盟论坛 » DOS讨论区 » DOS学习入门 & 精彩文章（教学室）

DOS学习入门 & 精彩文章（教学室）Moderators: ko20010214、zzz19760225

大家可以在这儿学习、交流和分享关于DOS的入门和安装等方面的基础知识和经验，将新手培养成各类DOS高手，以实现共同推广和发展DOS。

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Author

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Last post

Reprint: Skills for Copying DOS Window Information

MYS

5,028

2009-03-13 23:37
by lxhwf

求DOS下U盘驱动及使用方法

liuyma

2,878

2009-03-12 23:58
by wama

HWINFO503 reports “no enough memory”

cyradg

1,793

2009-03-11 22:20
by gund

[求书] 各位请进!

bbgeek

933

2009-03-08 16:06
by bbgeek

What does "lh" mean?

zzhh612

14,082

2009-03-08 07:44
by tongtong2009

cpu使用100%

cjhpower

1,341

2009-03-08 07:09
by fujianabc

求if比较全的文章

lserfn

2,037

2009-03-08 01:33
by 5566ljlj

怎么在VMware下安装MS-DOS

wf2030

1,288

2009-03-07 11:30
by djp2001

哈哈，自己翻译的cp/m系统的命令

machill

1,660

2009-03-07 03:34
by 5566ljlj

请教DOS详细U盘安装法

zhongsiyu

1,331

2009-03-04 11:55
by crazii

[Help] Installation problem with the MS-DOS 7.10 full installation edition

rouxiao

959

2009-02-26 22:02
by rouxiao

为 Vista 添加 DOS

Qtwdftxvt

1,563

2009-02-26 06:42
by tianxingren

Can config.sys set up a second-level menu?

hotdog

1,833

2009-02-26 00:30
by wangking2008

DOS入门教程chm[下载]

睡呆了

2,219

2009-02-21 22:56
by huwentao000

Classic DOS Textbook (Must-Read for DOS Beginners)

mictownar

10,326

2009-02-21 22:51
by huwentao000

关于cp/m的命令

machill

967

2009-02-18 23:03
by machill

问一下，Ghost.exe用于商业恢复安装license怎么购买

helloxpe

1,379

2009-02-15 22:03
by zhxy9804

我想学DOS可不知从哪里入手想请大家帮下我

zyx

1,573

2009-02-14 22:08
by wangfangjian

如何理解这个是什么意思?

zhoudf

1,445

2009-02-14 06:22
by VAF

[Original] MS-DOS 6 Command Encyclopedia: Entered from 2008-02 to 2008-12

sunenze

2,036

2009-02-14 05:06
by ql08421032

### 一、Debug简介 Debug是DOS系统下的一个强大的调试工具，它可以用来调试程序、查看内存、跟踪程序执行等。 ### 1. Debug的启动在DOS提示符下输入`debug`命令即可启动Debug。例如： ``` C:\>debug ``` 启动后会进入Debug的命令行界面，显示`-`提示符。 ### 二、常用Debug命令 #### 1. R命令 - 查看和修改寄存器内容 - **查看寄存器内容**：输入`r`命令，会列出所有寄存器的当前值。例如： ``` -a MOV AX,1234 MOV BX,5678 INT 20H -r AX=0000 BX=0000 CX=0000 DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000 CS=075C DS=075C ES=075C SS=075C IP=0000 NV UP EI PL NZ NA PO NC 075C:0000 B83412 MOV AX,1234 ``` - **修改寄存器内容**：例如要修改AX寄存器的值为`5555`，可以输入`r ax`，然后输入`5555`，回车后AX寄存器的值就被修改为`5555`。 #### 2. D命令 - 查看内存内容 - **格式**：`d [地址范围]` - **示例**：查看内存地址从`0B800:0000`开始的16个字节的内容，输入`d 0b80:0000` ``` -d 0b80:0000 0B80:0000 F04F 0700 F04F 0700-F04F 0700 F04F 0700 O.......O.......O.... 0B80:0010 0000 0000 0000 0000-0000 0000 0000 0000 ................ ``` #### 3. E命令 - 编辑内存内容 - **格式**：`e [地址] [字节1] [字节2]...` - **示例**：将内存地址`0000:0100`处的字节修改为`12`和`34`，输入`e 0:100 12 34` #### 4. U命令 - 反汇编 - **格式**：`u [地址范围]` - **示例**：反汇编从地址`075C:0000`开始的内容，输入`u 075c:0000` ``` -u 075c:0000 075C:0000 B83412 MOV AX,1234 075C:0003 CD20 INT 20H ``` #### 5. T命令 - 单步执行 - **格式**：`t [步数]`，如果不指定步数，默认执行1条指令 - **示例**：从当前指令开始单步执行1条指令，输入`t` ``` -t AX=1234 BX=0000 CX=0000 DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000 CS=075C DS=075C ES=075C SS=075C IP=0003 NV UP EI PL NZ NA PO NC 075C:0003 CD20 INT 20H ``` #### 6. A命令 - 汇编 - **格式**：`a [地址]`，如果不指定地址，从当前IP指向的地址开始汇编 - **示例**：输入`a`后，会进入汇编状态，逐行输入汇编指令，输入完后按Ctrl + C结束 ``` -a 075C:0000 MOV AX,1234 075C:0003 INT 20H ^C ``` ### 三、Debug调试程序示例以一个简单的汇编程序为例，编写一个将`AX`寄存器的值设置为`1234`并终止程序的程序。 1. 用文本编辑器编写汇编代码，保存为`test.asm`，代码如下： ```asm MOV AX,1234 INT 20H ``` 2. 用MASM汇编该文件得到`test.obj`，再用LINK链接得到`test.exe`。 3. 在DOS下用Debug调试`test.exe`，输入`debug test.exe` 4. 用`u`命令反汇编查看程序： ``` -u 075C:0000 B83412 MOV AX,1234 075C:0003 CD20 INT 20H ``` 5. 用`t`命令单步执行，观察寄存器变化等情况。以上就是Debug的基本教程，通过这些命令可以对程序进行调试和分析。The complete tutorial of Debug ### 1. Introduction to Debug Debug is a powerful debugging tool under the DOS system. It can be used to debug programs, view memory, track program execution, etc. ### 1. Startup of Debug Enter the `debug` command at the DOS prompt to start Debug. For example: ``` C:\>debug ``` After startup, it will enter the command line interface of Debug, displaying the `-` prompt. ### 2. Commonly used Debug commands #### 1. R command - View and modify register contents - **View register contents**: Enter the `r` command, and all register values will be listed. For example: ``` -a MOV AX,1234 MOV BX,5678 INT 20H -r AX=0000 BX=0000 CX=0000 DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000 CS=075C DS=075C ES=075C SS=075C IP=0000 NV UP EI PL NZ NA PO NC 075C:0000 B83412 MOV AX,1234 ``` - **Modify register contents**: For example, to modify the value of the AX register to `5555`, you can enter `r ax`, then enter `5555`, and press Enter to modify the value of the AX register to `5555`. #### 2. D command - View memory contents - **Format**: `d [address range]` - **Example**: To view the contents of 16 bytes starting from the memory address `0B800:0000`, enter `d 0b80:0000` ``` -d 0b80:0000 0B80:0000 F04F 0700 F04F 0700-F04F 0700 F04F 0700 O.......O.......O.... 0B80:0010 0000 0000 0000 0000-0000 0000 0000 0000 ................ ``` #### 3. E command - Edit memory contents - **Format**: `e [address] [byte 1] [byte 2]...` - **Example**: Modify the bytes at the memory address `0000:0100` to `12` and `34`, enter `e 0:100 12 34` #### 4. U command - Disassemble - **Format**: `u [address range]` - **Example**: Disassemble the contents starting from the address `075C:0000`, enter `u 075c:0000` ``` -u 075c:0000 075C:0000 B83412 MOV AX,1234 075C:0003 CD20 INT 20H ``` #### 5. T command - Single - step execution - **Format**: `t [number of steps]`. If the number of steps is not specified, 1 instruction is executed by default - **Example**: Single - step execute 1 instruction starting from the current instruction, enter `t` ``` -t AX=1234 BX=0000 CX=0000 DX=0000 SP=FFFE BP=0000 SI=0000 DI=0000 CS=075C DS=075C ES=075C SS=075C IP=0003 NV UP EI PL NZ NA PO NC 075C:0003 CD20 INT 20H ``` #### 6. A command - Assemble - **Format**: `a [address]`. If the address is not specified, assembly starts from the address pointed to by the current IP - **Example**: Enter `a`, and it will enter the assembly state. Input assembly instructions line by line. After inputting, press Ctrl + C to end ``` -a 075C:0000 MOV AX,1234 075C:0003 INT 20H ^C ``` ### 3. Example of Debug debugging program Take a simple assembly program as an example. Write an assembly program that sets the value of the `AX` register to `1234` and terminates the program. 1. Write assembly code with a text editor, save it as `test.asm`, and the code is as follows: ```asm MOV AX,1234 INT 20H ``` 2. Assemble this file with MASM to get `test.obj`, and then link it with LINK to get `test.exe`. 3. Debug `test.exe` under DOS, enter `debug test.exe` 4. Use the `u` command to disassemble and view the program: ``` -u 075C:0000 B83412 MOV AX,1234 075C:0003 CD20 INT 20H ``` 5. Use the `t` command to single - step execute and observe the register changes and other situations. The above is the basic tutorial of Debug. Through these commands, programs can be debugged and analyzed.

dongbaoyuan

1,685

2009-02-14 01:36
by upcjinjin

[求助]求国外DOS论坛、网站地址

leopardsaga

1,278

2009-02-13 23:12
by HAT

我已下载了ms-dos7.10完全安装版本但是不能安装

Nofox

1,127

2009-02-13 13:52
by Nofox

Who knows the usage of the redirection commands < and << in Dos?

qingteng1983

2,126

2009-02-12 22:35
by pujihong123

＊＊＊＊关于批处理的一个问题

wangzhuoh8

1,108

2009-02-12 19:24
by cc475178329