you have to choose SaveTypeAutomatic then when you save in-game you press Y...also when you beat the Champion don't forget to press Y right after you go through the Hall of Fame because at the end of the credits your game will freeze...
That should do
Awesome emulator!
Can I just Suggest you improve the sound quality for pokemon Ruby and Sapphire and make Emerald playable if it's possible? That'd be Awesome!
Also I found some glitches in Sapphire while entering a battle it freezes and starts a crashing noise
Anyways keep up the nice work