section above). The SF, ZF, and PF flags are set according to the result. The OF flag is undefined.</p>
<h2 class="exceptions" id="protected-mode-exceptions">Protected Mode Exceptions<a class="anchor" href="#protected-mode-exceptions">
			¶
		</a></h2>
<table>
<tr>
<td>#UD</td>
<td>If the LOCK prefix is used.</td></tr></table>
<h2 class="exceptions" id="real-address-mode-exceptions">Real-Address Mode Exceptions<a class="anchor" href="#real-address-mode-exceptions">
			¶
		</a></h2>
<table>
<tr>
<td>#UD</t