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From: jsdy@hadron.UUCP (Joseph S. D. Yao)
Newsgroups: net.micro.pc,net.micro.att,net.micro
Subject: Re: IBM PC PALETTE don't work on AT&T 6300 (HELP)
Message-ID: <204@hadron.UUCP>
Date: Mon, 24-Jun-85 14:45:00 EDT
Article-I.D.: hadron.204
Posted: Mon Jun 24 14:45:00 1985
Date-Received: Fri, 28-Jun-85 00:11:47 EDT
References: <302@ihlpm.UUCP>
Reply-To: jsdy@hadron.UUCP (Joseph S. D. Yao)
Distribution: net
Organization: Hadron, Inc., Fairfax, VA
Lines: 27
Keywords: Palette, don't_work
Xref: watmath net.micro.pc:4379 net.micro.att:191 net.micro:10884

In article <302@ihlpm.UUCP> cretney@ihlpm.UUCP (cretney) writes:
>I have recently purchased a program from IBM called PC PALETTE.  ...
>runs fine on an IBM PC but when I run it on my AT&T 6300 the
>program causes the machine to reboot.  The file that causes 
>this is called driver.com.

You don't say whether you run driver.com or, as its name implies,
it is a driver that you install to be loaded automagically at boot
time.  You also don't say whether you actually have a colour board
etc. on your 6300.  I must plead ignorance of the details of the
6300 per se; however I have been forced to work woth several 8086
machines, some "PC-compatible."  One interesting thing is that the
memory reserved for the video image -- different locations for B&W
and colour -- can actually be at a non-IBM-standard location in
some so-called compatibles.  Causes no problems if you just use the
DOS character-output calls; but if you access memory directly this
causes problems.  Especially if something else vital  i s  there.
The program may also try to change something in DOS itself.  This
is an oft-necessary piece of hackery, considering exactly how useful
DOS makes itself to people who are trying to do more than run
Lotus and WordStar.  However, if done in a quick-and-dirty manner
or if the DOS on the 6300 is sufficiently different from PC-DOS,
this can also write into unexpected areas.

*** LONG LIVE UNIX.  (and protected memory) ***

	Joe Yao		hadron!jsdy@seismo.{ARPA,UUCP}