RTEMS 4.9.2 On-Line Library

Memory Commands medit - modify contents of memory

RTEMS Shell User's Guide

4.2.3: medit - modify contents of memory

SYNOPSYS:

medit address value1 [value2 ... valueN]

DESCRIPTION:

This command is used to modify the contents of the memory starting at address using the octets specified by the parameters value1 through valueN.

EXIT STATUS:

This command returns 0 on success and non-zero if an error is encountered.

NOTES:

Dumping memory from a non-existent address may result in an unrecoverable program fault.

EXAMPLES:

The following is an example of how to use medit:

SHLL [/] $ mdump 0x02000000 32
0x02000000 A1 48 00 00 29 00 80 33-81 C5 22 BC A6 10 21 00 .H..)..3.."...!.
0x02000010 A1 48 00 00 29 00 80 33-81 C5 22 BC A6 10 21 01 .H..)..3.."...!.
SHLL [/] $  medit 0x02000000 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09
SHLL [/] $ mdump 0x02000000 32
0x02000000 01 02 03 04 05 06 07 08-09 00 22 BC A6 10 21 00 .........."...!.
0x02000010 A1 48 00 00 29 00 80 33-81 C5 22 BC A6 10 21 01 .H..)..3.."...!.

CONFIGURATION:

This command is included in the default shell command set. When building a custom command set, define CONFIGURE_SHELL_COMMAND_MEDIT to have this command included.

This command can be excluded from the shell command set by defining CONFIGURE_SHELL_NO_COMMAND_MEDIT when all shell commands have been configured.

PROGRAMMING INFORMATION:

The medit is implemented by a C language function which has the following prototype:

int rtems_shell_rtems_main_medit(
  int    argc,
  char **argv
);

The configuration structure for the medit has the following prototype:

extern rtems_shell_cmd_t rtems_shell_MEDIT_Command;

RTEMS Shell User's Guide