Motorola MVME2400 - Manual (Page 92)

5-2 Computer Group Literature Center Web Site
PPCBug
5
❏ 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:
❏ 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”.
❏ 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.
❏ 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 PPC4-
Bug> is displayed and you have all of the debugger commands at
your disposal.
❏ If 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
(e.g., GO), then control may or may not return to PPCBug, depending on
the outcome of the user program.