Break - Motorola MVME167 Series Installation Manual

Whenever abort is invoked when executing a user program
(running target code), a "snapshot" of the processor state is
captured and stored in the target registers. For this reason, abort is
most appropriate when terminating a user program that is being
debugged. Abort should be used to regain control if the program
gets caught in a loop, etc. The target PC, register contents, etc., help
to pinpoint the malfunction.
Abort Sequence
Pressing and releasing the ABORT switch does the following:
1. Generates a local board condition which may interrupt the
2. Displays the target registers on the screen, reflecting the
3. Removes any breakpoints installed in the user code and
4. Returns control to the debugger.

Break

A ÒBreakÓ is generated by pressing and releasing the BREAK key
on the console terminal keyboard.
Many times it may be desirable to terminate a debugger command
prior to its completion; for example, during the display of a large
block of memory. Break allows you to terminate the command.
processor if enabled.
machine state at the time the ABORT switch was pressed.
keeps the breakpoint table intact.
Break does not generate an interrupt.
The only time break is recognized is when characters are sent
or received by the console port.
Booting and Restarting 167Bug
4
4-11