Motorola MVME2400 Series Installation And Use Manual page 92

PPCBug
5
5-2
PPCBug includes commands for:
Display and modification of memory
Breakpoint and tracing capabilities
A powerful assembler and disassembler useful for patching
programs
A self-test at power-up feature which verifies the integrity of the
system
PPCBug consists of three parts:
1. A command-driven, user-interactive software debugger, described
in the PPCBug Firmware Package User's Manual. It is hereafter
referred to as "the debugger" or "PPCBug."
2. A command-driven diagnostics package for the MVME240x
hardware, hereafter referred to as "the diagnostics." The diagnostics
package is described in the PPCBug Diagnostics Manual.
3. A user interface or debug/diagnostics monitor that accepts
commands from the system console terminal.
When using PPCBug, you operate out of either the debugger directory or
the diagnostic directory if:
You are in the debugger directory, the debugger prompt
is displayed and you have all of the debugger commands at your
disposal.
You are in the diagnostic directory, the diagnostic prompt PPC4-
Diag> is displayed and you have all of the diagnostic commands at
your disposal as well as all of the debugger commands.
Because PPCBug is command-driven, it performs its various operations in
response to user commands entered at the keyboard. When you enter a
command, PPCBug executes the command and the prompt reappears.
However, if you enter a command that causes execution of user target code
(for example, GO), then control may or may not return to PPCBug,
depending on the outcome of the user program.
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