m

The m command displays and modifies memory.

Format

The format for the m command is:

m [-bhw] [adr [hexval|-s str]..]

where:

-b	is a flag signifying that byte accesses are to be used.
-h	is a flag signifying that halfword (16-bit) accesses are to be used.
-w	is a flag signifying that word (32-bit) accesses are to be used.
adr	is the memory address to display or modify without entering interactive mode.
hexval	is the value to insert at the specified address.
-s	is a flag signifying that the following parameter is a string value.
str	is a string value to copy to the specified address.
	enters interactive mode.
=	in interactive mode, reads current address again.
^|-	in interactive mode, moves back one word.
. <cr>	exits interactive mode.

Entering no values with this command causes the command to operate in interactive mode.

Functional Description

This command can display and then modify memory locations interactively. This command can also set memory to a specified value directly.

If invoked with one or more values following the address, the command is executed immediately, without entering the interactive mode.

If the command is invoked without a value, the command enters the interactive memory mode. In interactive memory mode, the user enters a command at the cursor. The interactive memory mode first displays the address and its current value. Interactive memory mode then lets the user select one of the commands listed in the following table.

If the -s option is specified, the Monitor displays the memory contents as an ASCII string. A multiple-word string may be specified by enclosing the multiple-word string in quotation marks.

Examples illustrating the use of the m command follow.

PMON> m a0020000            Display memory at address in interactive mode.

a0020000 00 _               User can enter command at cursor (_).


PMON> m a0020000 1 2 3 4    Set address 0xa0020000 to 1, address 
                            0xa0020001 to 2, etc., in noninteractive mode.


PMON> m a0020000            Display memory at 0xa0020000.

a0020000 01 CR 
a0020001 02 CR 
a0020002 03 CR 
a0020003 04 .



PMON> m a0020000 22         Set address 0xa0020000 to 0x22.

PMON> m a0020000            Display memory at 0xa0020000.

a0020000 22 44 
a0020001 00  
a0020002 00 55 
a0020003 00 66
a0020004 00 ^ 
a0020003 66 
a0020004 00 .


PMON> m 80020000 -s even    Set memory starting at 0x80020000 to 
                            the string "even."

	
PMON> m 80030100 -s "PMON 2000"
                            Set memory starting at 0x80030100 to 
                            the multiple-word string "PMON 2000."

See Also

fill command, l command, d command, and dump command.

Navigation: Document Home | Document Contents | Document Index