[Coco] DynoSprite Demo 1

[William Astle]

That won't work because there is no separate vdg in the coco3. It's all done by the gime. There is only one screen start address.

-------- Original message --------
From: Retro Canada <retrocanada76 at gmail.com> 
Date: 10-06-2013  9:54 AM  (GMT-07:00) 
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
Cc: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
Subject: Re: [Coco] DynoSprite Demo 1 
 
what about something unusual:

have the hud as split screen of a vdg hires 256x192x2 and the game as 320x200x16? the vdg will always have a different start address.


On 2013-10-06, at 11:18 AM, Richard Goedeken <Richard at fascinationsoftware.com> wrote:

Yeah that would be a show stopper.  I assumed that you could change the vertical start offset whenever you wanted, but if it only gets read at the start of a frame then this wouldn't work.

Richard

On 10/06/2013 12:38 AM, Nick Marentes wrote:
> I don't believe you can change the start of screen position "mid-field" like
> you can the horizontal offset.
> 
> Correct me if I'm wrong but I'm sure I have tried it and found the GIME
> doesn't accept the change till it has completed a frame.
> 
> Nick
> 
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