fMSX3DS is the port of fMSX for Nintendo3DS(New 3DS/New 2DS/Old 3DS/Old 2DS). In additional, it add audio emulation by Mitsutaka Okazaki(emu2413.c etc.) with latest version. It's not the legacy version of over 20 year ago that many emulator uses, but latest(2022) one. In additional, it add MSXTurboR and V9990 and MSX0 emulation. Also, it add various improvements based on recently analize of MSX hardware include analize in Japan that is unknown in world wide.