Hacking What's the "third processor" that the Wii U has?

[ghostpotato]

I'm referring to the one mentioned here. What specifically does it have to do with the vWii?

 

[FIX94]

I'd assume the person means the DSP which handles audio (and some very obscure gc memory card checksum calculations) for gc/wii, basically gc/wii games right on boot send a game-specific program to that DSP that then handles all game-specific audio (or other) operations. It is no longer used in wiiu games though.