[Coco] 80 column pak prototype

[billg999 at cs.uofs.edu]

> Louis,
>
> Mr. Google doesn't know all but is pretty good. :)
>
> Glad you found it!
>
> Tandy should have buffered the address anyway. I buffered that and the
> IRQs, R/W. etc.....Nice to be safer.

I agree.  They did on the Model 3 and Model 4 )don't think they did
on the Model 1 but my memory is flaky and I don;t have the book here.)

I wanted to do that and once I get some of those prototyping boards I
may take a shot at it.

bill