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 PROTECTED MODE INTERFACE
	AX = DE01h
	ES:DI -> 4K page table buffer
	DS:SI -> three descriptor table entries in GDT
		first becomes code segment descriptor, other two for use by
		  main control program
Return: AH = 00h successful
	    DI -> first unused page table entry in buffer
	    EBX -> protected mode entry point in code segment (see #03664)
	AH = nonzero  failed
Note:	protected mode entry point may be called with AX=DE00h-DE05h and
	  AX=DE0Ch (in each case, all other registers as appropriate for
	  the function)
SeeAlso: INT 2F/AX=1687h,INT 67/AH=3Fh


(Table 03664)
Call QEMM v6.03 protected mode entry point additionally with:
	AX = DF00h ???
		???
		Return: ???
	AX = DF01h ???
		???
		Return: ???