Int 67 Fn 50  - LIM EMS 4.0 - Map/unmap Multiple Handle Pages              [m]

   AH = 50h
   AL = subfunction
       00h use physical page numbers
       01h use segment addresses
   DX = handle
   CX = number of entries in array
   DS:SI -> mapping array (see below)

Return: AH = status
       00h successful
       80h internal error
       81h hardware malfunction
       83h invalid handle
       84h undefined function requested
       8Ah one or more logical pages are invalid
       8Bh one or more physical pages are invalid
       8Fh invalid subfunction

See Also: AH=40h

Format of mapping array entry:
Offset Size    Description
 00h   WORD    logical page number or FFFFh to unmap physical page
 02h   WORD    physical page number or segment address