8 May
2010
8 May
'10
11:43 a.m.
On May 8, 2010, at 1:22 PM, Jim Leonard wrote:
I'll debate it. What about the PDP-8/S? By your definition
that's a 1-bit processor.
I've never heard the 80286 referred to as a 32-bit processor, and
I never considered it such when I was programming them on a regular
basis.
Is the size of
the data bus irrelevant?
(There have been people who maintain that THAT is the measure of the
processor!)
They're wrong :-). The "size" of the CPU is defined by the size of
the internal registers. I am astonished there is actual discussion
debating this. What do you
consider 80386 to be?
how about the 80386-SX? It's hardware seems similar to 80286;
what is
THAT?
32-bit. It can process 32 bits in a single operation and deposit
the results into a 32-bit register. Again, I'm astonished there is
any debate at all. eZ80: 24-bit
It's a Z-80! The vast majority of its instructions are 8-bit Z80
instructions.
Jim, I really believe this just isn't as cut-and-dried as you say
it is.
-Dave
--
Dave McGuire
Port Charlotte, FL