Limits the mouse pointer display area by assigning minimum and maximum vertical (Y) coordinates for the mouse pointer.
Call with:
AX = 0008H
CX = minimum vertical (Y) coordinate
DX = maximum vertical (Y) coordinate
Returns:
Nothing
Notes:
If the minimum value is greater than the maximum value, the two values are swapped.
The mouse pointer will be moved if necessary so that it lies within the specified vertical coordinates.
See also Int 33H Function 10H, which defines an exclusion area for the mouse pointer.