Hi, i'm a bit lazy to check all your code, but have you got a look at
the Audio Advance at http://www.belogic.com/gba ? It has in dept
explanation of direct sound playback and its registers...and
everything in there has been tested up to the last bit on the real
hardware!

hope it helps,

Uze/belogic

ps: I'haven't seen any VBL irq enabling in your code, i guess you
didn't show it?

--- In gbadev@y..., defjam_cp@g... wrote:
>
>
> Hello,
>
> I'm trying since some time to get my DirectSound stuff working - on the
> emulators I use everything works fine (BoycottAdv. & VisualBoyAdv.),
but on
> the
> real Hardware nothing works (I don't have a GBA/flash||mbv2 yet)
>
> Ok.. code says more than 1000 words:
>
[cropped by mod]