would have to be stored like this:
<PRE>Offset&nbsp; Y-coord. Tile Coord
0&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0-7&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (0, 0) (8, 0) (16, 0) (24, 0) &lt;Unused--room for 12 more tiles>
512&nbsp;&nbsp;&nbsp;&nbsp; 8-15&nbsp;&nbsp;&nbsp;&nbsp; (0, 8) (8, 8) (16, 8) (24, 8) &lt;Unused--room for 12 more tiles>
1024&nbsp;&nbsp;&nbsp; 16-23&nbsp;&nbsp;&nbsp; (0,16) (8,16) (16,16) (24,16) &lt;Unused--room for 12 more tiles>
1536&nbsp;&nbsp;&nbsp; 24-31&nbsp;&nbsp;&nbsp; (0,24) (8,24) (16,