My XML's I used batch files and macros to pull all of the cheats from gamegenie.com and make them XML's for use with Nestopia.
The only problems so far, is that Dragon Warrior 4 is too big for Nestopia to load, and also, with codes needing multiple entries, I just used the description "And", but I didn't realize Nestopia alphabetizes the codes. So if someone wants to edit the xmls, if a description says "and" then it goes with the code
under it.
Feel free to add or edit these in any way.
PS, It was nice to know that all you need in the xml is the game genie code and the description, Nestopia figures out the rest.
Edit: I forgot to add that some of the descriptions say "or", and that means that code is an alternative if the one
under it doesn't work.