[sdiy] Place to start with 3E dev kit

[Rainer Buchty]

> That looks like enough detail to do a decent emulation in digital 
> hardware. The main thing then is how well they've modeled it.

It's "the" reference implementation. AFAIK the only thing which still 
remains questionable is the way waveform combinations (like tri+saw) are 
handled. Not that there is a real audible difference, but to my 
knowledge so far noone figured out how waveform combinations are 
*really* handled.

Still, the reSID engine remains the most advanced SID emulation (and 
also can stand an A/B comparison with the original).

> I grabbed that source too. They don't model the SID in that one - they 
> have an off-chip interface to talk to a real SID.

Ugh. That's cheating.

Rainer