if you done evrything while you in a game and made some changes, you will see that it will saves all cnahges in the advmame.rc file.
So if you made a change in pacman for your controls it would look like this in the rc file.
pacman/input_map[p1_up] WHATEVER_You-Changed_it_to.
pacman/input_map[p1_down] WHATEVER_You-Changed_it_to.
pacman/input_map[p1_left] WHATEVER_You-Changed_it_to.
pacman/input_map[p1_right] WHATEVER_You-Changed_it_to.
IMO, this all better done while you have a game loaded. Its quicker and no typo mistakes.
