Commodore PC - Page 279

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10 Debug
In this chapter you'll learn:
■ How to start the debug utility
■ How to use the debug commands and parameters
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Introduction
The debug utility is a debugging program that provides a con
trolled testing environment for binary and executable object files.
Note that edlin, the ms-dos line editor, is used to alter source
files; debug is edlin's counterpart for binary files.
Debug eliminates the need to reassemble a program to see if a
problem has been fixed by a minor change. It allows you to alter
the contents of a file or the contents of a CPU register, and then
immediately reexecute a program to check the validity of the
changes made.
All debug commands may be aborted at any time by pressing
control-c. The controls key sequence suspends the display, so
that you can read it before the output scrolls away. Pressing any
key other than control-c or controls restarts the display. All
these commands are consistent with the control character func
tions available at the ms-dos command level.