Actually, the effect I was seeing was in tile mode. The top row of tiles
(when I pan the background around) was being updated a frame ahead of all
the rest. But as I said, this doesn't happen on hardware so I wasn't that
concerned. I'm using an old version of Mappy, so this may have since been
fixed.

:a
----- Original Message -----
From: <dbrioso@...>
To: <gbadev@yahoogroups.com>
Sent: Sunday, September 02, 2001 10:58 AM
Subject: [gbadev] Re: bizarre vsync issue maybe?


> > am> hiya :)
> > [...]
> >
> > maybe what you are seeing isnt related to vsync at all, but the
> effect
> > that you get when doing not 16-bit aligned writes to vram ?
> (read/write
> > 16bit aligned words to vram only!)
>
> Yup, this question has been asked/answered over and over and over...
> Maybe it's about time someone makes a Top Ten Tips everybody has to
> read before committing him/herself to GBA programming =D.
>
> David Brioso
>
>
>
>
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