Microsoft DOS debug command

Quick links

About debug

Debug is a method of looking at portions of your computer and writing assembly code to perform certain tasks on your computer.

MS-DOS 2.x - 4.x uses debug.com
MS-DOS 5.x and above uses debug.exe

Availability

The debug command is an external command and is available in the below Microsoft operating systems.

Syntax

DEBUG [[drive:][path]filename [testfile-parameters]]

[drive:][path]filename	Specifies the file you want to test.
testfile-parameters	Specifies command-line information required by the file you want to test.

After Debug starts, type ? to display a list of debugging commands.

To get out of Debug you need to "Q" and enter
To execute the Debug routine you need to do "G" and enter

Examples

debug <press enter>
-D40:00 <TypeD40:00, and press enter>

Information about your computer ports would be displayed

-Q <Type Q, and press enter>

Additional information about the above debug routine and other debug routines can be found on our debug page.

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