10 May
2010
10 May
'10
4:47 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-
bounces at classiccmp.org] On Behalf Of Tony Duell
Sent: Thursday, May 06, 2010 10:42 AM
To: cctalk at classiccmp.org
Subject: Re: Greatest videogame device (was Re: An option - Re:
thebeginningof
I had a lot of fun troubleshooting my Nova 1200. The bus is 16 bits, but the internal
pathway through the ALU is *4* bits - they used a single 74181 ALU. It was the reason I
learned the demux feature of my logic analyzer. :-) -- Ian
For those of us that don't know any better
(I'm a little wiser now,
having
aka 'marketroids' ?
worked with the Motorola 68000 CPU) . It's a
bit like the days when
games
consoles had 16-bit, 32-bit etc. stamped on their
beautiful plastic
case. It
That;s another meaningless number in a lot of cases. Is the Philips
P850
8 bit (width of the ALU and most intenral data paths) or 16 bit (how it
appears to the machine code programmer -- an 'add' instruction adds 2
16
bits numbers, and uses the ALU twice, onve for each byte). Is the IBM
PC
8 bit (width of the data bus) or 16 bit?