Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!chinacat!woody
From: woody@chinacat.Unicom.COM (Woody Baker @ Eagle Signal)
Newsgroups: comp.lang.postscript
Subject: Re: Wanted: ps memory testing program
Summary: Redstone
Message-ID: <1510@chinacat.Unicom.COM>
Date: 28 Aug 90 00:54:36 GMT
References: <428@macuni.mqcc.mq.oz>
Organization: a guest of Unicom Systems Development, Austin
Lines: 22

In article <428@macuni.mqcc.mq.oz>, dcrowley@mqccsunc.mqcc.mq.oz.au (David Crowley) writes:
> 
> 	Well, the subject says it all. We have a suspected memory
>       error in our NT, does any one know of/have a program to test
>       the memory of a postscript printer.
> 						Thanx


If you hook up to the 25 pin serial port in interactive terminal mode, AND
you jumper pin 4 to pin pin 22, and power the laser up, you will come
up in the RED STONE monitor.  If you have a version of PS 38.0 or earlier
you can manualy change memory, but in anycase, there is a memory test command.
I seem to remember  that R dump registers, G is Go, L=long, W=word
B=byte (alter these), X= s1s9 download, H = haltpoints, Z or z = reset
I think that A, M, m,o,q,t,s, S are various memory test routines.
A in particular looks like it test memory, and if it finds a failure, 
prints the address, a R or W and a ?

Try it.  Can't hurt anything.

Cheers
Woody