via http://www.aep-emu.de/

The NES emulator HalfNES has been updated.

Quote:
HalfNES Version Notes:

0.56 (7/17/2014)

  • Multithreaded NTSC filter for better performance
  • Rewrote CPU/PPU timing entirely (passes many timing tests that used to fail)
  • Fixed VRC7 feedback (Lagrange Point now sounds almost completely correct)
  • Fixed loading of large NSF files.
  • Many other minor fixes over the past year.