INT E6 - Linux DOSEMU - SET I/O PORTIBM PC Portable (uses same BIOS as XT) PERMISSIONS
	AH = 02h
	BX = base I/O port address
	CX = number of consecutive I/O ports
	CF set to allow DOS to use ports
	CF clear if DOS should not be allowed to use ports
Return: nothing
SeeAlso: AH=00h