INT 10 - Chips & Technologies '64300' BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. - GET XRAM INFORMATION
	AX = 5F06h
Return: AL = 5Fh if function supported
	    AH = status
		00h unsuccessful
		01h successful
		    BL = XRAM presence (00h no XRAM, 01h present)
SeeAlso: AX=5F05h,AX=5F08h