So I'm very new to this, and I've spent some time looking around to find the answers I seek but to no avail. I have already modified both of the Genesis Shining Force games, but they were alterations done directly onto the ROM itself. How can I create a "patch" of the changes I've made for the games to share them?
I'm a huge fan of strategy games and I spent a great deal of time making precise changes to make the games more fun and versatile because they have such a large cast of characters. I wanted to make it more fun by giving the player specific reasons to pick X character over Y for Z battle. If I have somehow missed that information like say subtracting the differences between a modified ROM and the original and taking the difference into another file, I will freely admit I had overlooked it. If not, I would appreciate some pointers. Thanks to everyone in advance.