a7800DS v4.3 is released. a7800DS is an Atari ProSystem 7800 console emulator for the DS/DSi. a7800DS is based on ProSystem. To use this emulator, you must use compatibles rom with a78/bin format.

a7800DS v4.3 changelog:
Full support for the new Banksets scheme including the upcoming Attack of the Petscii Robots game!
Added the stable "illegal" opcode support for the 6502 CPU to ensure all games run properly.
New Maria cycle handling is more accurate than it's been in any previous version. More games run closer to perfect.
Improved rendering and a bit more optmization to make almost every game playable on the older DS-Lite.

Download: a7800DS v4.3
Source: Here