Intel XENIX 286 Programmers Guide (86) - Tenox.tc

XENIX Programming adb: Program Debugger
Writing to a File
You can write to a file by using the w and W commands. The commands have the form
[ address ] ?w value
where address is the address of the value you wish to change, and value is the new value.
The w command writes two-byte values; W writes four-byte values. For example, the
following commands change the word "This" to "The ".
?I 'This'
?W 'The '
Note that W is used to change all four characters.
Making Changes to Memory
You can also make changes to memory whenever a program has been executed. If you
have used an :r command with a breakpoint to start program execution, subsequent w
commands cause adb to write to the program in memory rather than the file. This is
useful if you wish to make changes to a program's data as it runs, for example, to
temporarily change the value of program flags or constants.
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