Date: Thu, 9 Aug 2001 15:00:16 +0100 From: j mckitrick <jcm@FreeBSD-uk.eu.org> To: Dag-Erling Smorgrav <des@ofug.org> Cc: Mike Meyer <mwm@mired.org>, Greg Lehey <grog@FreeBSD.ORG>, tlambert2@mindspring.com, freebsd-chat@FreeBSD.ORG Subject: Re: How did the MSFT monopoly start? Message-ID: <20010809150016.B92172@dogma.freebsd-uk.eu.org> In-Reply-To: <xzpelql4ms3.fsf@flood.ping.uio.no>; from des@ofug.org on Thu, Aug 09, 2001 at 11:15:24AM %2B0200 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> <xzpelql4ms3.fsf@flood.ping.uio.no>
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On Thu, Aug 09, 2001 at 11:15:24AM +0200, Dag-Erling Smorgrav wrote: | Mike Meyer <mwm@mired.org> 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
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