In Doom3's source code, why did they use bitshift to generate the number instead of hardcoding it?
<p>Why did they do this:</p>

<pre><code>Sys_SetPhysicalWorkMemory( 192 &lt;&lt; 20, 1024 &lt;&lt; 20 );   //Min = 201,326,592  Max = 1,073,741,824
</code></pre>

<p>Instead of this:</p>

<pre><code>Sys_SetPhysicalWorkMemory( 201326592, 1073741824 );
</code></pre>

<p><a href="http://fabiensanglard.net/doom3/index.php" rel="nofollow">The article I got the code from</a></p>
