<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Opcode - Page 1 - Wikipedia">
<p>
<a accesskey="3" href="page.php?w=Opcode&amp;p=2">3.Next</a>
</p>
<p>In <a href="page.php?w=computing">computing</a>, an <b>opcode</b> (abbreviated from <b>operation code</b>) is an <a href="page.php?w=enumeration">enumerated value</a> that specifies the operation to be performed. Opcodes are employed in hardware devices such as <a href="page.php?w=arithmetic_logic_unit">arithmetic logic unit</a>s (ALUs), <a href="page.php?w=central_processing_units">central processing units</a> (CPUs), and software instruction sets. In ALUs, the opcode is directly applied to circuitry via an input signal bus. In contrast, in</p><p>
<a accesskey="3" href="page.php?w=Opcode&amp;p=2">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
