while at it, byuu, can you confirm the statement you gave at bsnes 0.047 release
SuperFX support was the work of many people. [snip] (for reference, the implementation in bsnes is my own design)
we included the SFX core (uniquely based on your implementation) on the assumption it was original design and, hence, PD as most of bsnes
finally, is Nach missing in action? I tried to contact him with no luck about some code of his...