Loading GBA and NDS roms?

I just had a quick question. I searched around but couldn't find an answer. I can't figure out how to load a NDS game on my No$GBA emulator and load a GBA game too. Like for FFTA2, you need to have FFTA in the GBA slot when you start the game to get something. How could I do that? Thanks for any help. I hope I didn't mess something up.

I'm not sure that's possible.

I don't think that's possible.You can get a save file perhaps?

Man, that sucks. Thanks a lot for the quick reply! I was expecting to wait 'til tomorrow at the earliest. Thanks again!