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
3–4 SROM Mini-Debugger Command Set
User Commands
!d
The negate data (!d) command enables or disables the use of the one’s complement
of the data to be written by toggling the negate data flag.
Control Flags
Not applicable.
Description
When the negate data flag is enabled, writes will use the complement (negation) of
the data specified by the user or automatically generated by the command in use.
The default state is off.
Example
In the following example, with the negate flag enabled, the data supplied by the user
(0) is complemented and written to address 500000.
SROM> !d
Neg Data ON
SROM> dm
A> 500000
D> 0
SROM> em
A> 500000
00000000.00500000: ffffffff
With the fill memory command, the data written with each write is also comple-
mented, resulting in every other write having the original data.
SROM> fm
A> 600000
A> 600020
D> ffff0000