[Coco] CoCo 32k rom architecture

Robert Gault robert.gault at att.net
Tue Jan 26 09:46:27 EST 2016


Barry Nelson wrote:
> I am trying to write an image of a 32k rom pak into a chip and have the CoCo 3 run it. What can anyone tell me about the architecture of Tandy's 32 games such as Arkanoid, Rampage, etc? How did they map the 32k into the CoCo 3 address space? Did they have any special hardware in the pak besides the rom chip? How did the CoCo 3's addresses map onto the address space of the rom? How does all this relate to the layout of a 32k .ccc file?
>

Barry,

There is a complete description on this subject in "Breaking the 32K Barrier" by 
Greg Zumwalt, "The Rainbow", June 1990, p58.

Robert



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