<o:p></o:p></p>

<h1>Self modified code</h1>

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<p class=MsoNormal>The most important effect of the prefetch is self modified
code. This is a term describing code that modifies its own instruction stream.
This is usually done for performance reasons, or for protections and
anti-hacking techniques.</p>

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<p class=MsoNormal>If the modified code i