Int 67 Fn 5DE5  - Rm386 - Map Physical Page To Physical Segment            [m]

   AX = 5DE5h
   EBX = physical page number
   DX = page number in first megabyte to be remapped (linear-addr SHR 12)

Return: AH = status
       00h successful
       8Bh invalid destination page (not in first megabyte)

Note:  RM386 traps this function on the initial transition to protected
     mode caused by the INT instruction, which means it can not be
     overridden simply by hooking the interrupt

See Also: AX=5DE6h