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Clearing a Software
Breakpoint
Stepping Through
the Program
2-20 Getting Started
inverse-video. The inverse-video shows that the Program Counter is
now at the address.
A message on the status line shows that the software breakpoint has
been hit. The status line also shows that the emulator is now executing
in the monitor.
When software breakpoints are hit, they become inactivated. To
reactive the breakpoint so that is "pending", you must enter the
"modify software_breakpoint set" command again.
To remove software breakpoint defined above, enter the following
command.
modify software_breakpoints clear
Cmd_A <RETURN>
The breakpoint is removed from the list, and the original opcode is
restored if the breakpoint was pending.
To clear all software breakpoints, you can enter the following
command.
modify software_breakpoints clear
<RETURN>
The step command allows you to step through program execution an
instruction or a number of instructions at a time. Also, you can step
from the current program counter or from a specific address. To step
through the example program from the address of the software
breakpoint set earlier, enter the following command.
step <RETURN>, <RETURN>, ...
You will see the inverse-video moves according to the step execution.
You can continue to step through the program just by pressing the
<RETURN> key; when a command appears on the command line, it
may be entered by pressing <RETURN>.
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