Hypothesized Official Name: curCol
Memory Address: D00596h
Length: 1 byte
Stores the current cursor column (X position) for large (fixed-width) font display routines.
This is used by PutMap, PutC, and many other system routines that call PutMap and PutC, such as PutS, PutPS, and DispHL.
Permissible values for curCol range from 0 (left) to 25 (right), inclusive.