Merge pull request #317 from artart78/master

Fixed $zr being non-zero after loading instruction & better logging for fake modules
Some operations were doing things in 16-byte blocks. Adjust some buffer sizes to allow for this. Also remove a global.
Ignore voicenum = -1 in sceSasSetKeyOff for now. Update native.
Ignore bogus invalidate cache calls, fixes slowdown in some games
Fixed $k0 overwriting $sp content & stack address