RBIL61 - INT 21 - TopWare Network OS v5.10+ - GET/SET LPT PORT ON PRINT SERVER

INT 21 - TopWare Network OS v5.10+ - GET/SET LPTAbbreviation for Line PrinTer. PORTIBM PC Portable (uses same BIOS as XT) ON PRINT SERVER
	AX = FFC4h
	BL = subfunction
	    00h get
		Return: AL = mapped printer port on print server
	    01h set
		CL = network printer port (00h LPT1, 01h LPT2, 02h LPT3)
	CH = local printer (00h LPT1, 01h LPT2, 02h LPT3)