> On the NES however, every line of code is yours. I once stuck my nose into Game Boy Advance homebrew and was happy to find it can be the same there. Every p

> On the NES however, every line of code is yours. I once stuck my nose into Game Boy Advance homebrew and was happy to find it can be the same there. Every piece of the hardware is memory mapped. That means, given a reference of the mapped addresses and struct definitions, you can do whatever you want with the machine without any magic, black-box external code.