User`s guide
Table Of Contents
- Contents
- Tables
- Preface
- Introduction
- Getting Started
- 2.1 Overview
- 2.2 Hardware Required
- 2.3 Hardware Debug Features
- 2.4 Setting Up the SROM Serial Port Connection
- 2.5 Starting and Running the Mini-Debugger
- 2.6 Sample Session on the EB64
- 2.7 Sample Session on the EB64+ and the AlphaPC 6...
- 2.8 Sample Session on the EB66 and EB66+
- 2.9 Sample Session on the EB164
- 2.10 Sample Session on the AlphaPC 164
- 2.11 Sample Session on the AlphaPC 164LX
- 2.12 Onboard Machine Check Handler
- SROM Mini-Debugger Command Set
- Support, Products, and Documentation
- Index
SROM Mini-Debugger Command Set 3–25
User Commands
SROM> bm
A> 3ffff7
A> 40005f
00000000.003ffff0: fff0ffff.fff0ff7d
00000000.003ffff8: fff0ffff.fff0ffff
00000000.00400000: 01234567.89abcdef
00000000.00400008: 01234567.89abcdef
00000000.00400010: 01234567.89abcdef
00000000.00400018: 01234567.89abcdef
00000000.00400020: 01234567.89abcdef
00000000.00400028: 01234567.89abcdef
00000000.00400030: 01234567.89abcdef
00000000.00400040: 01234567.89abcdef
00000000.00400048: 00000000.00000000
00000000.00400050: 00000000.00000000
The write address flag allows for unique data to be written to each memory location.
This can be useful in debugging memory problems.
SROM> qw
QW OFF
SROM> wa
Wrt Addr ON
SROM> fm
A> 400000
A> 400020
SROM> bm
A> 400000
A> 400024
00000000.00400000: 00400000
00000000.00400004: 00400004
00000000.00400008: 00400008
00000000.0040000c: 0040000c
00000000.00400010: 00400010
00000000.00400014: 00400014
00000000.00400018: 00400018
00000000.0040001c: 0040001c
00000000.00400020: 89abcdef
Sometimes, it is useful to have alternating patterns written to adjacent memory
locations. The negate data flag (!d) can be helpful then.