From owner-freebsd-chat Tue Nov 14 8: 2:49 2000 Delivered-To: freebsd-chat@freebsd.org Received: from smtp02.primenet.com (smtp02.primenet.com [206.165.6.132]) by hub.freebsd.org (Postfix) with ESMTP id 80B7937B4C5 for ; Tue, 14 Nov 2000 08:02:47 -0800 (PST) Received: (from daemon@localhost) by smtp02.primenet.com (8.9.3/8.9.3) id IAA26743; Tue, 14 Nov 2000 08:58:42 -0700 (MST) Received: from usr08.primenet.com(206.165.6.208) via SMTP by smtp02.primenet.com, id smtpdAAAh9ay6Z; Tue Nov 14 08:58:19 2000 Received: (from tlambert@localhost) by usr08.primenet.com (8.8.5/8.8.5) id JAA19964; Tue, 14 Nov 2000 09:02:15 -0700 (MST) From: Terry Lambert Message-Id: <200011141602.JAA19964@usr08.primenet.com> Subject: Re: Microsoft Source (fwd) To: stork@qnet.com (Heredity Choice) Date: Tue, 14 Nov 2000 16:02:14 +0000 (GMT) Cc: grog@lemis.com (Greg Lehey), tlambert@primenet.com (Terry Lambert), cfuhrman@tfcci.com (Chris Fuhrman), chat@FreeBSD.ORG In-Reply-To: <001b01c04c66$e8320020$6cc6ddd1@STORK> from "Heredity Choice" at Nov 11, 2000 09:10:43 PM X-Mailer: ELM [version 2.5 PL2] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > > > only". Originally, Xenix only ran on 68000 hardware. > > > > Do you have any evidence for this? Admittedly, there was 68000 > > hardware at the time, but it was very early, and there's no obvious > > reason why Microsoft (which was definitely in charge of XENIX) would > > have bothered to port to an architecture they didn't plan to use, > > especially since it was big-endian and 32 bit, whereas both the PDP-11 > > and i86 were little-endian and 16 bit. I'd suspect that you're > > extrapolating here. > > I have seen Xenix on a Radioshack computer which had the 68000 processor. The Tandy 6000. It had the cutest hack, too: it ran 2 68000 processors, and when one took a protection fault, it would use the state from the other processor, one clock behind, in order to recover the otherwise destroyed instruction counter. Ah, I remember the thing well... truly a mrvel of silver and black plastic; our had a 14" HD, with a monster 10MB of space... I think this was one of the last machines where we distributed our software on 8" Shugart floppies... Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message