[Coco] Memory paging on the coco3

James Dessart james at skwirl.ca
Tue May 17 16:50:53 EDT 2005

On 17-May-05, at 4:27 PM, Frank Pittel wrote:

> I did get pointed to a site that does a rather complete job
> of describing the gime chip and how the paging works. It all
> looked good until I got to the bottom of the memory mapping
> chart and read how the memory is map as 8K pages. According
> to the page on a coco3 with 512K of ram the pages used are
> numbered from 0-63 which multiplies out to 512K. Then there's
> mention that on a "stock" 128K coco3 pages 56-63 are used.
> Another check with the calculator and I find that works out
> to 64K of ram. I always thought that my Coco3 had 128K of ram.

I was just looking at that reference myself, and yes, it doesn't add  
up. Looking at some handwritten notes I've got, 48 is the bottom page  
for the 128K CoCo3.

James Dessart
Blog: http://skwirl.net
Software dev services: http://skwirl.com

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