INT 15 - Phoenix BIOS 4.0 Rel 6.0 - ???

	AX = 5380h
	BX = 8001h
	CX = 0020h
Return: ???
Note:	although a check for the indicated value is present in the examined
	  copy of the BIOS, no code was associated with it (possibly an OEM
	  option not included in that copy)
SeeAlso: AX=5380h/BX=8000h