Pokemon Hex Editing Ideas?

[Amaredeus]

I'm planing to hex edit various pkm save files at various stages to try and figure out what the offsets are for many things. Mostly I want to figure out which hex offset is responsible for keeping track of which pkm that are caught/seen. Are there tools that I can use to easily compare differences between hex files, maybe something similar to the the attached img.

 

[HamBone41801]

hxd lets you do that.

 

[Amaredeus]

Wow ok did not see that. In that case does anyone have any tips?

 

[HamBone41801]

yea. have two copys of the same save. edit one with a save editor to fill out the pokedex one pokemon at a time. then compare them each time to find the offsets.