Pokemon incompatibility

[AdrienLE]

Hi all, awesome work on this! It seems there are still a few incompatible games, in particular it looks like all the Pokemon games just give a blank screen right now. Any plans to fix compatibility for these?

Thanks!

[krocki]

Thanks, yes, the fix should be quite simple. It’s most likely due to the particular memory mapper (aka cartridge format) that Pokémon uses. Most games run on a mapper called MBC1 which is implemented.
Here you can find more information on this: http://gbdev.gg8.se/wiki/articles/Memory_Bank_Controllers
The key is just to figure out which mapper a particular game uses and modify w8 / r8 functions accordingly