Re: [hatari-devel] Falcon cpu/dsp emu issue?

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The simplest DSP program I have is this one:

However I switched to a different revision of the source to test a patch so I don't know if this runs or not in the latest Hatari. Chances are it will break like the others.


On 27 January 2016 at 22:13, Nicolas Pomarède <npomarede@xxxxxxxxxxxx> wrote:
Le 27/01/2016 21:49, Eero Tamminen a écrit :

If I rewind to the Nov 19th version (Laurent/Andreas' DSP patch) the
program launches ok. Something has happened since then which breaks it.

I can work with the older version but this seems serious enough that
stuff might also not run?

Good question.  I tested several different demos, and *nothing*
that uses DSP works in the WinUAE cycle exact mode anymore
(some of them work when cycle exact mode is disabled).

Typically first DSP use happens with DSPExecProg(), but freeze
happens also with other demos using DSP, that don't use that
OS call.



I saw this too when running '030' demo, but was not able to spend enough time to track this, as many piece of code are interleaved in the demo, it's hard to get a small/simple repeatable case to debug.

Maybe there're some simple DSP test programs that show this problem (from coding tutorial or similar) ? If so it could be useful to see if they work or not in CE mode, which could be a good start to fix this case. Anyone knows such simple DSP programs ?


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