Retidy, removing align=left from headings and empty paragraphs
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362 changed files with 8472 additions and 5040 deletions
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45-01.html
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45-01.html
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@ -1,5 +1,4 @@
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<!DOCTYPE html>
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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@ -19,17 +18,21 @@
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<center>
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<table border="1">
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<tr>
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<td><a href="44-06.html">Previous</a></td>
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<td>
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<a href="44-06.html">Previous</a>
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</td>
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<td><a href="index.html">Table of Contents</a></td>
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<td>
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<a href="index.html">Table of Contents</a>
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</td>
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<td><a href="45-02.html">Next</a></td>
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<td>
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<a href="45-02.html">Next</a>
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</td>
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</tr>
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</table>
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</center>
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<p><br /></p>
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<h2 id="Heading1">Chapter 45<br />
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Dog Hair and Dirty Rectangles</h2>
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@ -59,16 +62,20 @@
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<p>As slow as 30 or even 10 cycles is for an <b>OUT</b>, one could only wish that VGA I/O were actually that fast. The fastest measured <b>OUT</b> to a VGA in Table 45.1 is 26 cycles, and the slowest is 126—this for an operation that’s <i>supposed</i> to take 10 cycles. To put this in context, <b>MUL</b> takes only 13 to 42 cycles, and a normal <b>MOV</b> to or from system memory takes exactly one cycle on the 486. In short, <b>OUT</b>s to VGAs are as much as 100 times slower than normal memory accesses, and are generally two to four times slower than even display memory accesses, although there are exceptions.</p>
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<p><br /></p>
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<center>
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<table border="1">
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<tr>
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<td><a href="44-06.html">Previous</a></td>
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<td>
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<a href="44-06.html">Previous</a>
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</td>
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<td><a href="index.html">Table of Contents</a></td>
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<td>
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<a href="index.html">Table of Contents</a>
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</td>
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<td><a href="45-02.html">Next</a></td>
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<td>
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<a href="45-02.html">Next</a>
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</td>
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</tr>
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</table>
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</center>
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