INT 4B - Virtual DMA SpecificationA set of interrupt calls which permit the use of DMA even on systems running in protected or Virtual-86 mode with their address remapping, or systems such as Micro Channel PSIBM PS/2, any model/2s with multiple bus masters independently performing DMA operations. - SCATTER/GATHER UNLOCK REGION
	AX = 8106h
	DX = flags (see #03225)
	ES:DI -> Extended DMAsee Direct Memory Access descriptor structure (see #03222,#03223) returned
		  by AX=8105h
Return: CF clear if successful
	CF set on error
	    AL = error code (see #03218)
Note:	according to the Microsoft version of the VDSsee Virtual DMA Specification specification, the
	  actual scatter/gather list is ignored, while according to the IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911.
	  version of the specification, "the result of a LOCK operation"
	  must be provided to this function
SeeAlso: AX=8104h,AX=8105h


Bitfields for VDSsee Virtual DMA Specification flags:
Bit(s)	Description	(Table 03225)
 0-5	reserved (zero)
 6	EDDS contains page table entries
 7	EDDS may contain not-present pages (entry = 0000h)
 8-15	reserved (zero)