[Coco] Coco 3 Memory Map Questions

William Astle lost at l-w.ca
Tue Feb 9 00:22:04 EST 2016


On 2016-02-08 18:00, RETRO Innovations wrote:
> I can say there would be some value in someone who could combine GIME,
> GIME2, LOMONT, Service Manual, Sock's GIME registers, etc. into a single
> locaiton with a common layout.  As someone trying to get familiar with
> the platform, it is difficult to sort through the various resources to
> get to consistent and accurate data.  I see now where Darren picked up
> his list from (it's listed on 2 lines on GIME.txt),

That would be useful even for folks that already know the platform, 
actually. I find I have to look things up all the time myself.

To cap it off, there are bits that are not listed in the "usual" places, 
like the "64 column 'VDG' screen" I wrote about some years ago on the list.

There is also bad information on exactly where the FFFx vector area is 
mapped. As I recall, Lomont asserts that it is mapped to BFFx when, in 
actual fact, it maps to the upper 16 bytes of the internal ROM 
regardless of ROM or RAM mode, something I confirmed experimentally a 
while back when I was messing with ROM replacements.

I'm sure there are other bits of information like that floating about in 
random places like Sockmaster's brain, comments in the Mame source, etc.


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