FCEUX - retrofw/retrofw.github.io GitHub Wiki
FCEUX is a Nintendo NES/Famicom and Famicom Disk System emulator.
Famicom Disk System Support
To play Famicom Disk System games, a FDS bios is required. It needs to be called disksys.rom
and placed in ~/.fceux
. To flip the Famicom Disk System disk, press R + Y.