Meaning of "architecture width" - Re: 68K Macs with MacOS 7.5 still in production use...
cclist at sydex.com
Fri Sep 16 18:41:56 CDT 2016
On 09/16/2016 03:20 PM, Jecel Assumpcao Jr. wrote:
> Note that in the conclusion to this 1979 article, the Motorola
> engineers say "It is a 32-bit architecture that supports many data
> types and data addresses."
Unfortunately, that doesn't clear the picture any.
What would you call a Packard-Bell PB250, with its bit-serial ALU and
delay line memory? It had a 22 bit word, with addressing granularity to
match. So it's a 22-bit architecture?
The TMS9900 has already been identified as a 16-bit ISA, even with its
So some enterprising soul could device a shift-register-based MPU with
1-bit memory bus, but with a 256 bit word size and it would be a 256 bit
Now you understand my "Alice Through the Looking-Glass" quote.
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