Basically I'm wondering if there's an easy way to view the contents of RAM and edit the values at certain addresses. Or maybe a different emulator would be better for that?

I'm using DesMuME 0.9.12, and as an example, I'd like to edit the map notes (where you draw on the map) in The Legend of Zelda: Spirit Tracks, so that I can have detailed maps or other images saved on them without having to draw them all by hand.

The drawings seem to be stored as basic 1-bit bitmaps. I can't make a save state and edit that because DesMuME compresses them, and I can't edit battery saves because without the right checksums, the game thinks they are corrupted. And while it seems the emulator can make a raw dump of RAM, I don't see any way to edit values or reload an edited dump.

Any ideas would be welcome, thanks!