The first byte is Object<br> 
Second is Screen (B7 would mean B vertical screen, 7 horizontal screen)<br> 
Third is Coordinate (B7 would mean B vertical coordinate, 7 horizonal coordinate)<br> 
Fourth is X Length<br> 
Fifth is Y Length<br> 

When it's to four byte objects, it's like this:<br> 
Object<br> 
Screen<br> 
Coordinate<br> 
Length (Y is first digit, X is second)<br> 


known map data offsets:<br>
<br>
0x0B03D1 - 0x0B0782: 1-1<br>
0x0B087C - 0x0B12B4: 1-3<br>