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Date:      Tue, 25 Aug 1998 23:59:21 -0400 (EDT)
From:      Charles Youse <cyouse@artemis.syncom.net>
To:        "Robert D. Keys" <bsdbob@seedlab1.cropsci.ncsu.edu>
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: PS/2 MCA Model 80 port --- (don't laugh too hard)
Message-ID:  <Pine.NEB.3.96.980825235021.4712B-100000@artemis.syncom.net>
In-Reply-To: <199808252135.RAA22043@seedlab1.cropsci.ncsu.edu>

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Actually, that wouldn't be terribly hard -- I remember modifying
system-level code to run on MCA 286 machines.  In a nutshell, the
differences are numerous but largely minor (e.g., the 8259s needs to run
in level-triggered mode as opposed to edge).  These differences between
ISA and MCA are enough to keep a stock kernel from running [properly]
but shouldn't be prohibitive to change.

I think I have an MCA 386SX machine sitting around somewhere.  Want to
give it a whirl?

Chuck Youse
cyouse@syncom.net


On Tue, 25 Aug 1998, Robert D. Keys wrote:

> Although the PS/2 line is mostly a dinosaur, there are a lot of the
> beasts out there.  What is the potential of doing a scsi based port
> to something like the model 80 line (386/16M/scsi) based upon borrowing
> some of the Minix or Linux code?   I am looking for something very low-
> endian with no frills.  Is there anyone that has done something like
> that or worked in that area, or does any of the early(?) FBSD attempts
> at that still exist?
> 
> Curious,  (as he says, tongue-in-cheek, but with several AIX PS/2's
>            wanting to get beyond the sysV flavor)......
> 
> Bob Keys
> rdkeys@seelab1.cropsci.ncsu.edu
> 
> 
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