Saving, Pokemon, Rom, Mac How Can I Get My Pokemon Yellow To Save On VBA?

How can I get my Pokemon Yellow to save on VBA? - saving, pokemon, rom, mac

I have a Mac, and I tried to put my game Pokemon Yellow on Visual Boy Advance, but I can not work. I have everything I've seen so far, I have the VBA folder in the Applications folder, I have the ROM file in the saved state, I tried to press "Freeze Game", I tried Shift + F1, 2, 3,4,5,6,7,8,9,10,11,12 ..... But no work. Do not even make an error, just nothing. As saved, to be admitted? I am sick and tired of restarting the game!