Debug: D (Dump)

Page updated January 21, 2005

Displays the contents of a range of memory addresses. Used without parameters, d displays the contents of 128 bytes, starting at the end of the address range specified in the previous d subcommand.

Syntax

d [Range]

Parameters

Range

Specifies the starting and ending addresses, or the starting address and length, of the memory area whose contents you want to display.

Displays a list of debug subcommands.

Remarks

Windows XP and the Windows Server 2003 family of products do not use this command. It is included only to preserve compatibility with existing MS-DOS files, but it has no effect at the command line because the functionality is automatic.
Specifying valid Range entries

Use Range with a debug subcommand to specify a range of memory. You can choose one of the following formats for Range: a starting address and an ending address, or a starting address and the length (denoted by l) of the range. For example, both of the following syntaxes specify a 16-byte range beginning at CS:100:

cs:100 10f

cs:100 l 10
When you use the d subcommand, Debug.exe displays memory contents in two portions: a hexadecimal portion (that is, each byte value is shown in hexadecimal format) and an ASCII portion (that is, each byte value is shown as an ASCII character). Each nonprinting character is denoted by a period (.) in the ASCII portion of the display. Each display line shows the contents of 16 bytes, with a hyphen between the eighth and ninth bytes. Each display line begins on a 16-byte boundary.
For information about displaying the contents of registers by using the r (register) subcommand, see Related Topics

Examples

Type:

dcs:100 10f

Debug.exe displays the contents of the range in the following format:

04BA:0100 54 4F 4D 00 53 41 57 59-45 52 00 00 00 00 00 00.....

If you type the d subcommand without parameters, Debug.exe formats the display as described in the previous example. Each line in the Command Prompt window begins with an address that is 16 bytes greater than the address on the previous line (or 8 bytes if you have a 40-column screen). For each subsequent d subcommand that you type without parameters, Debug.exe displays the bytes immediately following those last displayed.

To display the contents of 20h bytes, starting at CS:100, type:

dcs:100 l 20

To display the contents of all bytes in the range of lines from 100h through 115h in the CS segment, type:

dcs:100 115

Formatting legend

Format	Meaning
Italic	Information that the user must supply
Bold	Elements that the user must type exactly as shown
Ellipsis (...)	Parameter that can be repeated several times in a command line
Between brackets ([])	Optional items
Between braces ({}); choices separated by pipe (\|). Example: {even\|odd}	Set of choices from which the user must choose only one
Courier font	Code or program output

Some of these terms may be the same or similar to DOS commands. For information on DOS Commands, click here

Contact Email: Support@upgradenrepair.com

DISCLAIMER:UpgradeNRepair (UNR), the owner, and any representatives of UpgradeNRepair (UNR) is not liable for any data loss or hardware failure because of the following procedure. The Information provided is a guide to assist the customer with an issue with their system or software. The procedures offered here may or may not harm your files. Even procedures that are not designed to harm files, can harm files, depending on the issue with the system. Because there is too many unknowns, UpgradeNRepair is unable to guarantee the safety of the files. Customer is responsible for their data and their actions. Before following the directions on this page and the pages these links are linked to, any data the customer does not want to lose will have to be saved. Saving the data is the sole responsibility of the customer. Some or all of the following procedures or information may not apply to your situation.