INT 15 U - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. PCI 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/SET ???
	AX = DA19h
	CL = subfunction
	    00h get first ???
	    01h get second ???
	    02h set first ???
		BX = ???
		DX = ???
	    03h set second ???
		BX = ???
		DX = ???
Return: CF clear if successful
	    AX = 0000h
	    BX,DX = ??? (subfunctions 00h and 01h only)
	CF set on error
	    AH = error code (86h unsupported subfunction)
Note:	the first ??? is stored in CMOS RAMA small amount (typically 64 or 128 bytes) of memory in the system's real-time clock chip that is preserved by the clock's battery and is used for storing configuration information.  See also Real-Time Clock. locations 1Bh-1Eh, the second in
	  locations 1Fh-22h in the v1.00.05.AX1 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.