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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
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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="28-02.html">Previous</a></td>
<td>
<a href="28-02.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="28-04.html">Next</a></td>
<td>
<a href="28-04.html">Next</a>
</td>
</tr>
</table>
</center>
<p><br /></p>
<p>By the way, the code in Listing 28.1 is intended only to illustrate read mode 0, and is, in general, a poor way to perform animation, since it&rsquo;s slow and tends to flicker. Later in this book, we&rsquo;ll take a look at some far better VGA animation techniques.</p>
<p>As you&rsquo;d expect, neither the read mode nor the setting of the Read Map register affects CPU <i>writes</i> to VGA memory in any way.</p>
@ -52,16 +55,20 @@
<p>That&rsquo;s certainly interesting, but what&rsquo;s read mode 1 good for? One obvious application is in implementing flood-fill algorithms, since read mode 1 makes it easy to tell when a given byte contains a pixel of a boundary color. Another application is in detecting on-screen object collisions, as illustrated by the code in Listing 28.2.</p>
<p><br /></p>
<center>
<table border="1">
<tr>
<td><a href="28-02.html">Previous</a></td>
<td>
<a href="28-02.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="28-04.html">Next</a></td>
<td>
<a href="28-04.html">Next</a>
</td>
</tr>
</table>
</center>