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From: Brett <ggtgp@yahoo.com>
Newsgroups: comp.arch
Subject: Re: Whether something is RISC or not (Re: PDP-8 theology,
 not Concertina II Progress)
Date: Tue, 1 Oct 2024 23:38:10 -0000 (UTC)
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MitchAlsup1 <mitchalsup@aol.com> wrote:
> On Tue, 1 Oct 2024 20:00:28 +0000, Thomas Koenig wrote:
> 
>> MitchAlsup1 <mitchalsup@aol.com> schrieb:
>> 
>>> A 32-bit bus would have priced the 68K at 30%-50% higher simply
>>> due to the number of pins on available packages. This would have
>>> eliminated any chance at competing for the broad markets at that
>>> time.
>> 
>> Would have an external 16-bit bus and an internal 32-bit bus have
>> been advantageous, or would this have blown a likely transistor
>> budget for little gain?
> 
> It was pin limited and internal area limited; and close to being
> power limited (NMOS).
> 

My wish list for the 68k was a barrel roller for fast shifts, would have
made a HUGE difference for the first Macintosh.