Int 62 Fn 00B1  u - Fgdriver V3.03 - "fg_xconvert" - Convert Char Column   [V]

   AX = 00B1h
   BX = character space column

Return: AX = screen space column of leftmost pixel in specified character col

Note:  For FGDRIVER v1.10, this function was unused;"FG_XCONVERT" was AX=000Eh

See Also: AX=00B0h,AX=00B3h