INT 67 - LIM EMSsee Expanded Memory Specification - MAP MEMORY
	AH = 44h
	AL = physical page number (0-3)
	BX = logical page number
	    or FFFFh to unmap (QEMM)
	DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Ah,8Bh) (see #03648)
SeeAlso: AH=69h