Used by the routines at 59148 and 62368. T values in this block may be (and in practice are) used by play area tiles at y-coordinates 1, 7, 13, 19, 25, 31 and 37. The T values at addresses 44767-44772, 44777-44789 and 44796-44799 are used only by tiles at y-coordinate 1 (which are never displayed), and are therefore effectively unused.