Category: <b>resident utilities</b>
<br>Flags: Undocumented function<p>
<pre><b>INT 5B - SitBack v3.02R - TOGGLE ???</b>

	AX = 8485h
	DL = 7Ah
Return: CX = 5342h if supported
	    AL = new value of ??? (00h or 01h)
</pre>