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
3–16 SROM Mini-Debugger Command Set
User Commands
dm
The deposit memory (dm) command writes a data pattern to one memory location.
Control Flags
!d (negate data flag)
ba (base address flag)
fr (follow-with-read flag)
fw (follow-with-write flag)
lo (loop flag)
qw (quadword data flag)
wa (write address flag)
Description
The deposit memory command writes a data pattern to the specified memory
location. If the quadword flag is enabled, then 64 bits of data are written; otherwise,
only 32 bits of data are used. The data pattern is provided by the user but can be
affected by the state of the write address flag and the negate data flag.
Example
In this example, a continuous write to address 500000 is performed with the loop
flag enabled. Note that because the quadword flag is disabled, only the low 32 bits of
the data pattern entered are written.
SROM> di ! Enable display mode
Disp ON
SROM> qw
! Writes are performed 32-bits at a time.
QW OFF
SROM> lo
! Repeat operation until a key is pressed.
Loop ON
SROM> dm
! Only the low 32-bits are used in these writes.
A> 500000
D> 123456789abcdef
! (key pressed)