PPCBug
5
PPCBug Overview
The PPCBug firmware is the layer of software just above the hardware. The firmware provides the proper initialization for the devices on the MVME240x module upon
This chapter describes the basics of PPCBug and its architecture, describes the monitor (interactive command portion of the firmware) in detail, and gives information on actually using the PPCBug debugger and the special commands. A complete list of PPCBug commands appears at the end of the chapter.
Chapter 6 contains information about the CNFG and ENV commands, system calls, and other advanced user topics.
For full user information about PPCbug, refer to the PPCBug Firmware Package User’s Manual and the PPCBug Diagnostics Manual, listed in the Related Documentation appendix.
PPCBug Basics
The PowerPC debug firmware, PPCBug, is a powerful evaluation and debugging tool for systems built around the Motorola PowerPC microcomputers. Facilities are available for loading and executing user programs under complete operator control for system evaluation.
PPCBug provides a high degree of functionality, user friendliness, portability, and ease of maintenance.
It achieves good portability and comprehensibility because it was written entirely in the C programming language, except where necessary to use assembler functions.
PPCBug includes commands for:
❏Display and modification of memory
