ARCHIVED: What are the commands for the DOS Debug program?

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The following is a list of DOS Debug commands:

?	Displays a list of debug commands
a	Assembles 8086/8087/8088 mnemonics
c	Compares two portions of memory
d	Displays the contents of a portion of memory
e	Enters data into memory starting at a specified address
f	Fills a range of memory with specified values
g	Runs the executable file that is in memory
h	Performs hexadecimal arithmetic
i	Displays one byte value from a specified port
l	Loads the contents of a file or disk sectors into memory
m	Copies the contents of a block of memory
n	Specifies a file for an `l` or `w` command, or specifies the parameters for the file you are testing
o	Sends a single byte value to an output port
p	Executes a loop, a repeated string instruction, a software interrupt, or a subroutine
q	Stops the Debug session
r	Displays or alters the contents of one or more registers
s	Searches a portion of memory for a specified pattern of one or more byte values
t	Executes one instruction and then displays the contents of all registers, the status of all flags, and the decoded form of the instruction that Debug will execute next
u	Disassembles bytes and displays the corresponding source statements
w	Writes the file being tested to a disk
xa	Allocates expanded memory
xd	Deallocates expanded memory
xm	Maps expanded memory pages
xs	Displays the status of expanded memory

For more information about using DOS commands, at the DOS prompt, enter: HELP

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Last modified on November 01, 2008.