Still Stuck on Tile Information

Life got in the way of my ff6 in the browser project, but I've got a little more time to work on it now so I'm back at it. Still can't seem to crack the damn map tile properties data though (frustratingly it's only 8 bits I don't understand, but they're critical). I had a incredibly complicated set of if / else ifs that I was using to approximate the functionality, but I don't think that's going to fly in the long run.

I'm trying to track down where the game processes moving from one tile to the next but have been striking out. Can anyone point me in the right direction to track this down? My ASM / Geiger's debugger skill exists but is pretty low level.

I've tried weeding through traces of what happens when you press a key to move, but can't really make heads or tails of the MBs of data that gets spits out almost instantly.