| Game status buffer

32928: Room tiles

Initialised upon entry to a room by the routine at 35090.
32928 | DEFS 9 | Background tile (used by the routines at 36147, 36288, 36307 and 38430, and also by the unused routine at 37819)
32937 | DEFS 9 | Floor tile (used by the routines at 36147 and 36288)
32946 | DEFS 9 | Wall tile (used by the routines at 36147, 36288, 36307 and 36796)
32955 | DEFS 9 | Nasty tile (used by the routines at 36147, 36288, 36307 and 38430)
32964 | DEFS 9 | Ramp tile (used by the routines at 36147, 36203, 36796 and 38344)
32973 | DEFS 9 | Conveyor tile (used by the routines at 36147, 36203 and 36564)