Fixes an issue where expanded Pokémon above index 0x1FF do not show up correctly in the Hall of Fame.
For example, 0x201 would normally show up as 0x1 (Bulbasaur). This is because the Hall of Fame data originally only allocated 9 bits to the species number, and 0x1FF is the largest number that can be stored in that space; larger numbers only have their lowest 9 bits stored.
For binary FR hacks.
See here for the prequisites and help in installing them.
Open your terminal to whatever folder you want to download this repo into. Then, do the following to download the repo and build the included tools:
$ git clone https://github.com/Zeturic/bpre-fame-hall.git
$ cd bpre-fame-hallCopy your ROM to this directory and rename it rom.gba.
The build system is smart enough to find enough free space on its own, but if you want it to be inserted at a particular address, you can specify it by updating the definition of START_AT in config.mk.
If the given address is acceptable (i.e. is word-aligned and has enough bytes of free space), it will be inserted there. Otherwise, it will just use START_AT to determine where in the ROM it should start looking for free space.
Once you're ready, run make to actually build the project.
This won't actually modify rom.gba, instead your output will be in test.gba. Naturally, test it in an emulator.
Existing saves with Hall of Fame data that use the vanilla data structures will have that data become corrupted when applying this. Existing saves without Hall of Fame data will be completely fine.
You can clear existing Hall of Fame data by doing clearflag 0x82C if you really want to support old saves. It will still remember the number of times the player had entered the Hall of Fame, but it will be inaccessible until they refight the Elite Four. clearflag 0x82C has no effect on players without Hall of Fame data.
The project structure and some of the build tools are from pokeemerald.