I'm currently re-learning how a computer works under the hood and implementing my own little emulators after forgetting everything from university/school. I pl

I'm currently re-learning how a computer works under the hood and implementing my own little emulators after forgetting everything from university/school. I plan to write a GB emulator too one day. I'm a Java programmer by day job but I find it dull so this is my "hobby" at the moment