Re: Whether something is RISC or not (Re: PDP-8 theology, not Concertina II Progress)

MitchAlsup1 <mitchalsup@aol.com> schrieb:

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).

Somebody did a good job of optimizing it, then, at the limit of
several constraints.  Not necessarily a global optimium, though,
that could have been closer to the (much later) ARM.