INT 67,54 - Get Handle Directory (LIM EMS 4.0+)

	AH = 54h
	AL = 00  get handle directory
		 ES:DI = pointer to buffer for handle directory

	     01  search for named handle
		 DS:SI = pointer to 8byte name

	     02  get total number of handles


	on return:
	AL = number of entries in handle directory (AL = 00h)
	DX = value of named handle (if AH was 01)
	BX = total number of handles (if AH was 02)
	AH = status  (see EMS STATUS)