[hatari-devel] Re: [hatari-devel] Re: [hatari-devel] Bug with latest releases on my Eletric night demo

[Laurent <laurent.sallafranque@xxxxxxx>]

Hi,

I agree. The whole demo is driven by the sound samples position.

I think the MFP interruption is broken, so the sound index doesn't 
change and the demo waits forever the next sound index position to swith 
to the next effect.

I've written some things to you in private to help to investigate on 
this problem.

Regards

Laurent


Le 26/01/2020 à 14:02, Nicolas Pomarède a écrit :
> Le 25/01/2020 à 08:56, Laurent a écrit :
> > Hi all,
> >
> >
> > Electric night demo doesn't run with the latest hatari version.
> >
> > It starts with the VHS K7 effect, then the 1st Dune logo appears and 
> > then it freezes before the first colored tore effect.
> >
> > I've bissected it and it is broken since this patch :
> >
> >
> > 25833053487457424fdd4bb893c8afb8cbd74af0 is the first bad commit
> > commit 25833053487457424fdd4bb893c8afb8cbd74af0
> > Author: Nicolas Pomarede <npomarede@xxxxxxxxxxxx>
> > Date:   Sun Jun 9 17:35:07 2019 +0200
> >
> >      When changing GPIP bits in the MFP, we must use 
> > MFP_GPIP_Set_Line_Input instead of MFP_InputOnChannel
> >
> > :040000 040000 b1ccc5d631d05dc74c3bfb7ea5235ab28520db62 
> > 93a5b9fc4fc362b3001eeaf3e6d9e1b913251f9c M    src
> >
> >
> > Is it the same for you ?
> >
> > Regards
> >
> > Laurent
>
> Hi
>
> I see the same problem ; as you have the code for this demo, do you 
> see what part in the code could cause this ? I think it's related to 
> the sound interrupt hreq, which IIRC is not completely emulated in 
> falcon mode. It's possible the change I made (which should be valid) 
> are exposing some limitation in hreq emulation.
>
> Nicolas