Motorola MVME2400 Series Manuel de service télécharger pdf (Page 92)

5-2 Computer Group Literature Center Web Site

PPCBug

❏ 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.

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Motorola MVME2400 Series Manuel de service Page 92