INT 15 u - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. 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. - SMART ENERGY SYSTEM - SYSTEM SETUP
	AX = 2304h
	DX = segment of 32K buffer
Return: CF clear if successful
	    AX = 0003h (left over from setting video mode 3)
	    BX,CX,DX,BP,DS,ES destroyed
	CF set on error
	    AH = error code (80h,86h)
Desc:	run system setup utility, and optionally save any changed settings to
	  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.
Note:	IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. classifies this function as optional
SeeAlso: AX=2301h,AX=2305h