t</a>(0);</div>
<div class="line"><span class="keywordflow">return</span> NULL;</div>
</div><!-- fragment --><p>For more information on multi-threaded programming, hardware interrupts, and related topics, we suggest you perform some research online or read the relevant chapters of "Modern Operating Systems" by Andrew S. Tanenbaum (Prentice Hall). At the time of writing, some relevant chapters from this book are available for download in PDF format on Prentice Hall’s web site. See:</p>
<p><a href="http://w