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dda, ddp, ddu, dpa, dpp, dpu, dqa, dqp, dqu (Display Referenced Memory)

The dda, ddp, ddu, dpa, dpp, dpu, dqa, dqp, and dqu commands display the pointer at the specified location, dereference that pointer, and then display the memory at the resulting location in a variety of formats.

ddp [Options] [Range] 
dqp [Options] [Range] 
dpp [Options] [Range] 
dda [Options] [Range] 
dqa [Options] [Range] 
dpa [Options] [Range] 
ddu [Options] [Range] 
dqu [Options] [Range] 
dpu [Options] [Range]

Parameters

Options

Specifies one or more display options. Any of the following options can be included, except that no more than one /p* option can be indicated:

/cWidth

Specifies the number of columns to use in the display. If this is omitted, the default number of columns depends on the display type. Because of the way pointers are displayed by these commands, it is usually best to use the default of only one data column.

/p

(Kernel-mode only) Uses physical memory addresses for the display. The range specified by Range will be taken from physical memory rather than virtual memory.

/p[c]

(Kernel-mode only) Same as /p, except that cached memory will be read. The brackets around c must be included.

/p[uc]

(Kernel-mode only) Same as /p, except that uncached memory will be read. The brackets around uc must be included.

/p[wc]

(Kernel-mode only) Same as /p, except that write-combined memory will be read. The brackets around wc must be included.

Range

Specifies the memory area to display. For more syntax details, see Address and Address Range Syntax. If you omit Range, the command will display memory starting at the ending location of the last display command. If Range is omitted and no previous display command has been used, the display begins at the current instruction pointer. If a simple address is given, the default range length is 128 bytes.

Environment

Modes

user mode, kernel mode

Targets

live, crash dump

Platforms

all

 

Additional Information

For an overview of memory manipulation and a description of other memory-related commands, see Reading and Writing Memory.

Remarks

The second and third characters of this command are case-sensitive.

The second character of this command determines the pointer size used:

CommandDisplay

dd*

32-bit pointers used

dq*

64-bit pointers used

dp*

Standard pointer sizes used: 32-bit or 64-bit, depending on the target's processor architecture

 

The third character of this command determines how the dereferenced memory is displayed:

CommandDisplay

d*p

Displays the contents of the memory referenced by the pointer in DWORD or QWORD format, depending on the pointer size of the target's processor architecture. If this value matches any known symbol, this symbol is displayed as well.

d*a

Displays the contents of the memory referenced by the pointer in ASCII character format.

d*u

Displays the contents of the memory referenced by the pointer in Unicode character format.

 

If line number information has been enabled, source file names and line numbers will be displayed when available.

 

 

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