Hello, I am a newbie in the ROM Hacking community. I just recently encountered a problem with decoding a Sega Genesis game: This code:
As you all know, $A10008 is the controller 1 control address, and $A1000C is the expansion port control. However, what I don't get is how it affects the ROM. If contorller one is inserted, does that make $A10008 have a number that is not zero or a number that is zero? Also, how does $A1000C add into all of this? Is it going to be permanently zero, as Sega never announced any expansion port accessories?
In this scenario, does it mean that the code will branch or not?