INT 10 - ATI Mach64 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. - ???
	AX = A002h
	CL = ??? (bits 2-0 may not be 000)
	CH = ??? (81h or ???)
	DX = segment of ??? (if CH=81h)
	???
Return: AH = status
	    00h successful
	    01h failed
	???
Note:	executes AX=A000h, then AX=A001h if A000h was successful
SeeAlso: AX=A000h,AX=A001h