Re: [hatari-devel] Color and scroller problems in Overdrive "Dragon" screen?

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 24/08/2012 20:09, Eero Tamminen a écrit :
> Hi,
>
> I was looking at few demos and notices some issues
> in the Overdrive demo:
> 	http://pouet.net/prod.php?which=11351
>
> "Dragon" screen.
>
> The spinning balls are green at bottom half
> of the screen, the bottom of the screen has
> some garbage pixels and scrolltext vertical
> position is wrong on right side of the screen.
>
> Is the demo just very bad, or is there some
> emulation issue?
>
> (I tried this with ST + TOS v1.04 and STE / EmuTOS.)
>
>
> 	- Eero

Hello

yes, this is a known problem, you can even see it mentioned in the 
compatibility doc :)

The overscan uses non standard timings on the last line, which shift 
display on the next screen where upper half has no left/right border 
removal. This is on my todo list, but requires some major changes 
despite its simple result.

Nicolas