[hatari-devel] Chaos AD problem : $fffffc02

[Laurent Sallafranque]

Hi,

Thanks a lot Nicolas.

Another demo that runs now ;)

For me, it has freezed while showing the tridi DNT crew logo (near the 
end of the demo I guess).

I agree, the sound is awfully noisy (one of the most noisy sounds I've 
heard under hatari).


Regards

Laurent




Le 13/06/2011 15:30, Nicolas Pomarède a écrit :
> Le 13/06/2011 00:31, Laurent Sallafranque a écrit :
>> Thanks a lot Nicolas for the help.
>>
>> I'll have to finish the 6301 emulation one of these days :)
>>
>> Regards
>>
>> Laurent
>
>
> I committed a custom ikbd's handler for this demo. The 6301 code is in 
> fact used to decode the demo's protection (it will take a few dozen of 
> seconds, due to the slow transfer rate between cpu/acia and ikbd).
> During the demo, the ikbd remains disabled, so you can't exit unless 
> you wait for the demo to end.
>
> Hopefully, the demo doesn't uses the 6301's code that was supposed to 
> decode the byte. The 6301 code is using some kinds of 'sync decoding', 
> by relying on the 6301's timer counter and the instructions cycle length.
> I guess they had too much trouble making this works, so the decoder is 
> much simpler (basically a XOR against an 8 bytes buffer) and some part 
> of the code are useless.
>
> The demo is running correctly, except the sound which is really awful 
> (as a huge fan of Hardwired, I had to turn off sound instead of 
> listening to this :) )
>
>
> Nicolas
>