Re: [stella] Adventures in cart building

Subject: Re: [stella] Adventures in cart building
From: Chris Wilkson <ecwilkso@xxxxxxx>
Date: Mon, 10 Sep 2001 13:46:08 -0400 (EDT)
On Mon, 10 Sep 2001, B. Watson wrote:

> > > I'll call it FrankenCart...
> >
> > Hmmm...that's what I called my first attempt.  Must be a common name.  :)
> >
> If it had a neck, I'm sure there would be a couple of bolts sticking out
> of it :)

Heh....mine *has* the bolts!!!  I bolted the ZIF socket to the PCB...  :P

> Ergh. I've been planning to learn PIC assembly for a while now.. The roommate
> keeps telling me I'm wasting my time with all this 6502 stuff...

Don't listen to them!!!!  The 6502 rules all!
(Ok...the 6809 rules all, but hey!  :)

The PIC is useful, but you can learn to use them in an afternoon.  After that,
where is the fun?  The only challenge is finding a project to work on.  You'll
never run out of challenge trying to write for the 2600.  :P

But when I say programmable logic, I don't mean MCU or MPU.  I mean PLDs and
the like.  With a 20MHz PIC, you only get an instruction every 200ns.  That's
fast enough for something like this, but it's pushing it.  PLDs can be had
with ahhh..."response times" of < 5ns.  (I'm grouping everything into a
generic "response" that basically has no real meaning.)
And they're cheap.  Sorta.

> We should be starting on the 8k bankswitched version pretty soon. I remember
> getting those 13-input AND gates and wondering, `wtf would this ever be good
> for?', now I know :)

Yep...address decoding.  Take a look at an old ISA card for the PC.  You'll most
likely find a 74133 hidden someplace.

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