[Coco] [Color Computer] Pace Project

[jdaggett at gate.net]

James

I have talked with Mark via email a coupleof times and yes he is progressing quite 
well. The 6809 CPU core is from John Kent, the same one I am looking at. There 
are already FREE CPU cores on the open market for the 8080, Z80, 6502, 6800, 
and a few other of the older 8 bit CPUs. Some need a bit of massaging to work in a 
particular FPGA. Most will run at least four or five times faster than the original 
silicon. 

The hardest part of putting a Coco, 1, 2 or 3, in an FPGA is to look at the data 
sheets and from them reverse engineer or create logic that the mimics the internal 
workings of the other ASIC chips. 


james


On 12 Apr 2006 at 14:17, James Diffendaffer wrote:

> I'm not sure if any of you were aware of this project or not.
> This guy has been implementing 1 8 bit computer after another in FPGAs
> after another and now he has a mostly working CoCo.
> http://members.iinet.net.au/~msmcdoug/
> 
> 
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