INT 7F - Alloy MW386 - GET PORTIBM PC Portable (uses same BIOS as XT) INFORMATION
	AH = 30h
	CX = MW386 port number
Return: AL = result
	    FFh if port not found
	    else driver unit number
		BL = port mode
		BH = port type
		    02h remote
		DH = owner's machine ID
		DL = owner's user ID
SeeAlso: INT 17/AH=8Bh