[Coco] Above 512k upgrades

[Mark Marlette]

John,

FF9B is the video page register, that flips the 512k page.......see  
james....... :)

Mark
Cloud-9

Quoting "John W. Linville" <linville at tuxdriver.com>:

> On Tue, Aug 14, 2007 at 06:55:20AM -0500, Mark Marlette wrote:
>
>> As extra register are available they are not needed unless you go
>> beyond 2MB limit. The MMU and it's task registers are 6 bits wide and
>> all you have to do is tack on the 2 bits to each and then update your
>> refresh cycle.
>
> IIRC, isn't there something about the video memory offsets that needs
> to be handled as well?  Sorry, I don't have a GIME reference handy
> to ask a more specific question...
>
> John
> --
> John W. Linville
> linville at tuxdriver.com
>
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