pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><![endif]>Read source operand (optional if source is register).</p>

<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l18 level1 lfo4;
tab-stops:list .5in'><![if !supportLists]>3)<span style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><![endif]>Perform as many prefetch cycles as extension words are in the
destination operand (optional).</p>

<p class=MsoNormal style='margin-left:.5in;text-inden