Expects: AX    001dH
BX    video page number to use for displaying the mouse pointer
Returns: none
Info: This tells the mouse support which video page to display the
mouse pointer.  By default, the pointer is displayed on page 0.

INT 33H 001eH returns the current video page used by the mouse

This fn does not activate the specified video page.  Use
INT 10H 05H to do that.  Use INT 10H 0fH to see which video page
is currently active.

- -

INT 33H 001dH: Set Mouse Display Page