Misc/abrash-black-book
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Retidy, removing align=left from headings and empty paragraphs

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James Gregory 2013-12-30 15:37:13 +11:00
commit a96a114403
362 changed files with 8472 additions and 5040 deletions
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47-06.html
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@ -1,5 +1,4 @@
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
@ -19,17 +18,21 @@
<center>
<table border="1">
<tr>
<td><a href="47-05.html">Previous</a></td>
<td>
<a href="47-05.html">Previous</a>
</td>
<td><a href="index.html">Table of Contents</a></td>
<td>
<a href="index.html">Table of Contents</a>
</td>
<td><a href="47-07.html">Next</a></td>
<td>
<a href="47-07.html">Next</a>
</td>
</tr>
</table>
</center>
<p><br /></p>
<h3 id="Heading6">Hardware Assist from an Unexpected Quarter</h3>
<p>Listing 47.5 illustrates the benefits of designing code from a Mode X perspective; this is the software aspect of Mode X optimization, which suffices to make Mode X about as fast as mode 13H. That alone makes Mode X an attractive mode, given its square pixels, page flipping, and offscreen memory, but superior performance would nonetheless be a pleasant addition to that list. Superior performance is indeed possible in Mode X, although, oddly enough, it comes courtesy of the VGA&rsquo;s hardware, which was never designed to be used in 256-color modes.</p>
@ -47,16 +50,20 @@
<p>Note that the return from Mode X&rsquo;s parallelism is not always 4x; some adapters lack the underlying memory bandwidth to write data that fast. However, Mode X parallel access should always be faster than mode 13H access; the only question on any given adapter is how <i>much</i> faster.</p>
<p><br /></p>
<center>
<table border="1">
<tr>
<td><a href="47-05.html">Previous</a></td>
<td>
<a href="47-05.html">Previous</a>
</td>
<td><a href="index.html">Table of Contents</a></td>
<td>
<a href="index.html">Table of Contents</a>
</td>
<td><a href="47-07.html">Next</a></td>
<td>
<a href="47-07.html">Next</a>
</td>
</tr>
</table>
</center>