From owner-freebsd-chat Thu Aug 9 7: 0:22 2001 Delivered-To: freebsd-chat@freebsd.org Received: from probity.mcc.ac.uk (probity.mcc.ac.uk [130.88.200.94]) by hub.freebsd.org (Postfix) with ESMTP id CF8EA37B403; Thu, 9 Aug 2001 07:00:19 -0700 (PDT) (envelope-from jcm@freebsd-uk.eu.org) Received: from dogma.freebsd-uk.eu.org ([130.88.200.97] helo=dogma) by probity.mcc.ac.uk with esmtp (Exim 2.05 #7) id 15UqMD-000KjJ-00; Thu, 9 Aug 2001 15:00:17 +0100 Received: (from jcm@localhost) by dogma (8.11.4/8.11.1) id f79E0Gj92308; Thu, 9 Aug 2001 15:00:16 +0100 (BST) (envelope-from jcm) Date: Thu, 9 Aug 2001 15:00:16 +0100 From: j mckitrick To: Dag-Erling Smorgrav Cc: Mike Meyer , Greg Lehey , tlambert2@mindspring.com, freebsd-chat@FreeBSD.ORG Subject: Re: How did the MSFT monopoly start? Message-ID: <20010809150016.B92172@dogma.freebsd-uk.eu.org> References: <20010806142544.A64348@dogma.freebsd-uk.eu.org> <15214.52633.581653.632317@guru.mired.org> <3B6F98D0.A3C22CC9@mindspring.com> <20010808160551.Q78395@wantadilla.lemis.com> <3B7103A4.558B9B3B@mindspring.com> <15217.45815.8133.991656@guru.mired.org> <20010809130711.I73579@wantadilla.lemis.com> <15218.4851.592770.804113@guru.mired.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: ; from des@ofug.org on Thu, Aug 09, 2001 at 11:15:24AM +0200 Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Thu, Aug 09, 2001 at 11:15:24AM +0200, Dag-Erling Smorgrav wrote: | Mike Meyer writes: | > [...] The | > address space was 32 bits - the top 8 got thrown away when you left | > the CPU - and it didn't have special registers for addressing, so the | > general registers had to be 32 bits wide and it had to have those 32 | > bit operations. | | AFAIK, the 68k has separate data and address registers (d0-d7 and | a0-a7 respectively) Ah, yes. It was an amazing CPU for assembly language programming. 32 bit registers, 16 bit bus. jm -- "Investigators have discovered the cause of the TWA 800 explosion was a frayed wire. The wire became frayed when it was struck by a missile." To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message