15 Jun
2006
15 Jun
'06
10:29 p.m.
Tony Duell wrote:
The 29116 never really seemd to be a classic bit-slice part. You couldn't
easily cascade thjem to an arbitrary data path width.
[ Homebrew procrssors]
2901 really only makes sense for a "classic" CPU design.
By the time you put all of the parts together to get a complete
CPU, it is quite a large solution. Some parts (29116, etc.)
could help a little but it still was big. I think once the 2901 "fell from grace"
(?), this became a thing
of the past. I've designed two processors "from scratch" (TTL
Maybe, althoguh i never cared much for the 2901... But, nowadays, I think it would be a lot less tedious
if you
could do it in a big FPGA using synthesis tools. You could
Hmm... I had to use FPGAs in my last job, and I hated every darn minute
of it. Don't get me wrong, I can and will use them if somebody is paying
me to do so, but I won't chose them for my own design. I found it a lot
quicker to debug a circuit by changing things on the actual hardware
(rathen than waiting for your design to complie again, and finding the
darn compiler had removed most of your logic without warning because
you'd tiend an enable pin to the wrong state). And I wouldn't trust that
simulator as far as I could throw it ... No, for my own hobby designs,
I'll stick to boards of TTL and a logic analyser.