Smsplus Audio Implementation

[Eecornwell]

I came across your repo while investigating open source c++ audio implementations and miniaudio. I have a few questions on your buffer implementation in smsplus.

1.) I cannot trace back where snd.output is coming from in smsplus.c. I am guessing this is what you feed back to miniaudio callback for playback, but I only see "out" var in there.

2.) Any success with getting the ring buffer working? If so, can you share an example?