Re: [hatari-devel] Falcon tests

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One of the issues is lack of Videl emulation. Hatari uses a fixed refresh rate ignoring the Videl configuration.

On Sun, Jun 5, 2022, 11:23 Eero Tamminen <oak@xxxxxxxxxxxxxx> wrote:

On 5.6.2022 0.19, Nicolas Pomarède wrote:
> Le 01/06/2022 à 23:33, Laurent Sallafranque a écrit :
>> Many demos suffers sound speed, glitches or unsynchro between sound
>> and effects.
>> It seems that the effects run too fast, or the Falcon DMA sound too
>> slow, I don't know.
> the demos are often using dsp to play the music (mp2  decoder for
> example), which makes it harder to isolate the problem.
> does someone know a demo (or a program) for falcon that just plays DMA
> sample using ff8903/05/07 (similar to the STE's DMA sound).

Demos listed in the compatibility list that are marked to:
* Use sound
* Not require DSP to function
* Music being there only if DSP is enabled

Are good candidates for that.  I can go through them today with DSP
disabled, to check whether any of them has bad audio.

As none of them is supposed to have problems, it's a good regression
check in any case.

> I would need to check DMA play mode->DAC first before checking DSP->DAC
> Or if someone already has a simple asm code to init crossbar + play a
> small sample with dma , that would be handy too and would save me time
> instead of doing it myself :)


        - Eero

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