INT 67 - Virtual Control Program InterfaceA simple API for protected-mode programs to allocate memory and switch into or out of protected mode.  See also DOS Protected-Mode Interface. - GET PHYS ADDR OF PAGE IN FIRST MB
	AX = DE06h
	CX = page number (linear address shifted right 12 bits)
Return: AH = status
	    00h successful
		EDX = physical address of page
	    nonzero invalid page number (AH = 8Bh recommended)
SeeAlso: AX=5BE0h