[hatari-devel] [info] : Falcon crossbar, sound and DSP

[Thomas Huth]

On Wed, 16 Sep 2009 11:35:31 +0200
Laurent Sallafranque <laurent.sallafranque at free.fr> wrote:

> The DAC can be connected to one of the 4 tracks
> In general, sound is composed of 1 track stereo 16 bits.
> The DAC is connected to track 0 in this common case.
> 
> But we can tell the crossbar and the DSP SSI to communicate with 4 
> tracks 16 bits.
> Datas transfered in this case look like this :
> 
> L1R1 L2R2 L3R3 L4R4 L1R1 L2R2 L3R3 L4R4 L1R1 ...
> 
> A new frame starts at each L1

Great, that's the information I was searching for months... where did
you find this?

> For Hatari, I think we should remove current SSI->Ste DMA sound code
> to keep dma_sound.c for Ste DMA sound only and create a new
> crossbar.c file for the falcon crossbar.

Fine for me, in fact I also had this idea already, just did not have the
time yet... thanks for taking care of this!

 Thomas