Lordus has also updated his Sega Master System emulator ApprenticeMinusDS.

Features so far:

– Enhanced Z80 ASM core used in jEnesisDS.
– SMS/GG emulation.
– 10 Savestates per game.
– Rewind and fast forward feature.
– Settings can be saved per game.
– Fully rendered by the DS 2D hardware.
– Perfect sync option, that actually syncs every scanline (emulated scanline to DS scanline).
This option is more accurate, and needed for some games to look correctly, but it can be problematic to use it, when “Rewind” is enabled.
– sample accurate (almost ;P) PSG emulation.
– Stereo sound for GG games.

Known issues:

– timing is not exactly correct yet, so some games might not work, or have glitches.
– No FM emulation (yet?)
– Sprite updates need to be improved, sometimes there can be glitched sprites atm.
– Interface practically ripped from jEnesisDS 😉
– Many more, that i don’t remember now…

http://dcemu.co.uk/jenesisds-0-7-apprenticeminusds-0-2-6-106665.html