Dingear is a Sega Master System/Game Gear/SG-1000 emulator based on a heavily modified SMSplus engine specifically crafted for the Dingoo A320 console.

Changes:

– Rewrote the LCD driving code in a more flexible way
hopefully this should make it more compatible with a fair amount of consoles.
– User can now set the running LCD frequency (50/60hz).
– Volume & frequency are now saved in preferences file.
– Reset menu command now performs a hard reset.

http://boards.dingoonity.org/dingoo-development/dingear-v1-0/45/