RE: It's working!

You could always pop in a 65802 processor (if you can find one) and run it
at 7MHz and it's 100% 6502 pin and code compatible. You can then switch it
into 16 bit mode for new games and take advantage of some of the new
instructions.
Or you can build an adapter card and use a 65816 and still be compatible
with 6502 code, but have access to a 24 bit address bus. (as well as 16 bit
index registers and new instructions)

-jeff

-----Original Message-----
From: Doug Jefferys [mailto:dougj@hwcn.org]
Sent: Wednesday, April 25, 2001 12:24 PM
To: vectorlist@synthcom.com
Subject: Re: VECTOR: It's working!

On Wed, 25 Apr 2001, Neil Bradley wrote:
>
> In short, I have the mod working! It had two problems:

Way cool hack, and thanks for the assemblable stuff.

I, too, am interested. Been a long time since I looked at this.
I might actually do something worthwhile with it :)

Anyone know of any timing-critical stuff in Asteroids? Because
it's a vector game, we don't have to worry about monitor sync
frequencies derived off the crystal. Popping in a faster crystal
might be handy if future software mods require more CPU power.

I was gonna make a snarky comment about "...and we could see how
far we could overclock a 6502", before I realized that yeah, odds
are that a 6502 made 4-5 years ago is much more likely to be OCable
than the ones from 20 years ago. Perhaps significantly so.

Later,
Doug.

-- 
 dougj   |
   @     |
hwcn.org |
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