User`s guide
Table Of Contents
- Contents
- Figures
- Tables
- Preface
- Introduction
- Getting Started
- 2.1 Overview
- 2.2 System Requirements
- 2.3 Configuring Your System
- 2.4 Updating the Debug Monitor Firmware
- 2.4.1 Updating Firmware in a Flash ROM
- 2.4.2 Updating the Flash ROM from the AlphaBIOS S...
- 2.4.3 Updating the Flash ROM from the Windows NT ...
- 2.4.4 Updating the Flash ROM from the Debug Monit...
- 2.4.5 Updating the Flash ROM from the Alpha SRM C...
- 2.4.6 Running Firmware Update
- 2.4.7 Updating Firmware in a UVPROM
- 2.5 Switching to the Debug Monitor Firmware on Fl...
- 2.6 Debug Monitor Memory Map
- 2.7 Downloading Files
- 2.8 Execution Commands
- 2.9 Resetting the Debug Monitor
- Remote Debugging
- User Commands
- 4.1 Overview
- 4.2 Using the Commands
- 4.3 User Commands Quick Reference
- 4.4 User Commands
- apropos
- arpshow
- bcoff
- bcon
- beep
- boot
- bootadr
- bootopt
- bpstat
- cb
- cfreg
- cl
- compare
- cont
- copy
- cq
- creg
- cw
- date
- delete
- dis
- dml
- dmq
- ebuff
- edevice
- edmp
- einit
- eml
- emq
- eprom
- ereg
- eshow
- estat
- estop
- fill
- flash
- flasherase
- flboot
- flcd
- flcopy
- fldir
- flload
- flread
- flsave
- flwrite
- fwupdate
- go
- help
- iack
- ident
- init
- jtopal
- ladebug
- load
- mces
- mcheck
- memtest
- mrb
- mrl
- mrw
- mwb
- mwl
- mww
- netboot
- netload
- next
- pb
- pcishow
- pfreg
- pl
- pq
- prb
- preg
- prl
- prw
- pw
- pwb
- pwl
- pww
- rabox
- rb
- rbcfg
- rbctl
- rbiu
- riccsr
- rl
- rmode
- romboot
- romlist
- romload
- romverify
- rsys
- rw
- sb
- setbaud
- setty
- sl
- sq
- step
- stop
- sum
- sw
- swpipl
- sysshow
- tip
- version
- wabox
- wb
- wbcfg
- wbctl
- wbiu
- wiccsr
- wl
- wrfen
- wsys
- ww
- Support, Products, and Documentation
- Index

User Commands 4–153
User Commands
sum
sum
The sum command computes the checksum of the data in the specified range.
Format
sum start_address end_address
Parameters
start_address
Specifies the address at which the checksum check begins.
end_address
Specifies the address at which the checksum check ends.
Description
The sum command prints the checksum of the data contained in the specified
memory range. The algorithm used computes a 16-bit checksum and is compatible
with the standard BSD4.3 algorithm provided in most implementations of UNIX
(sum), thus allowing easy comparisons of images in the motherboard’s memory with
those on the UNIX host.
Example
AlphaPC 64> netload pc64dbm.rom
Digital Semiconductor 21040 (0): Initializing
Hardware address = BA-98-76-54-32-10
Trying 10 Base T
Switching to AUI
MAC address: BA-98-76-54-32-10
Attempting BOOTP...
Loading /sae_share/boot/user1/pc64/pc64dbm.rom at 0x300000
My IP address: 16.123.45.67
Server IP address: 16.123.45.69
###################
File loaded successfully. Size = 0x30B80 (199552)
AlphaPC 64> sum 300000 330B7F
0xe5cc 58828