FCEUmm is a Nintendo Entertainment System video game system emulator that can
be used as a libretro core.

FCEUmm (FCEUltra mappers modified) is a NES/Famicom emulator that specializes
in extensive mapper support.

FCEUmm requires a real BIOS for Famicom Disk System emulation to work.

* disksys.rom

To build the debugging symbols use:
  DEBUG=1 ./libretro-fceumm.SlackBuild