Category: <b>BIOS</b>
<br>Flags: Undocumented function<p>
<pre><b>INT 15 - IBM BIOS - SMART ENERGY SYSTEM - ???</b>

	AX = 2303h
	BX = ??? ('x')
	DX = 'y' and 'z'
		bits 15-7 = 'y'
		bits 6-3 unused
		bits 2-0 = 'z'
	DI = ??? (0352h)
Return: ???
Notes:	performs graphics functions, writes to segment A000h and VGA I/O ports
	IBM classifies this function as optional
</pre>