[Coco] Coco game engine demo

[Richard Goedeken]

I do build the screen by rows as you scroll vertically.  The problem is that I 
run out of address space.  The graphics aperature is big (almost 256k) 
because: I'm using 256-byte rows for quality and speed, and there are 4 
screens: two pairs for double buffering, and each pair is for even/odd to get 
single byte horizontal scrolling.  So there's only 256k of address space to 
scroll through, and with 256-byte lines that ends up being about 1k rows.

Richard

On 02/03/2013 10:53 AM, coco-request at maltedmedia.com wrote:
>>  The limitation on the vertical tilemap height makes this engine unsuitable
>>  for a top-scroller type of shooter game.
 >
> Could you not dynamically build the tilemap one row at a time as you scroll?
>
> Regards,
>
> -- | Mark McDougall | "Electrical Engineers do it |
> <http://members.iinet.net.au/~msmcdoug> | with less resistance!"