[Coco] CoCo 3 patch question

Roger Taylor operator at coco3.com
Tue Nov 25 15:20:46 EST 2008


At 08:15 AM 11/25/2008, you wrote:
>Roger
>
>There are three places that the Disk Basic Code is patched.
>
>Patch 28 - $C0C6 of the Disk ROM Version 1.0. This points to the
>Copyrigght flash screen. that needs updating. This patch is only
>implemented if the disk ROM is version 1.0
>
>Patch30 - $C0D9 is the patching of Disk basic V1.1 Copyright screen.
>
>Patch29 - $C8B4 of the Disk basic Version 1.1 ROM and is 11 bytes long.
>This is the Keyboard Patch. It stores 11 NOPs.


The simplest solution would be to just start the code at $c8bf but 
then you lose 2239 bytes.  Actually, the upper 2K seems like a good 
place to put data but carefully.

-- 
Roger Taylor

http://www.wordofthedayonline.com




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