Appreciate the help! I just started playing around with the no$gba debugger and it's definitely much better than VBA. It looks like it does basically everything I was looking for. I think I can hopefully figure it out from here. Thank you!
I'm trying to remap a couple buttons in a Medal of Honor - Infiltrator. I want to swap the A and R buttons.
I know where the button state is stored (4000130) and I can see which register is affected by relevant button presses (R12), but I'm having trouble locating the instructions that read...