ical</h1>



<table>
<tr>
<th>Opcode/Instruction</th>
<th>Op/En</th>
<th>64/32 bit Mode Support</th>
<th>CPUID Feature Flag</th>
<th>Description</th></tr>
<tr>
<td>NP 0F D1 /<em>r</em><sup>1</sup> PSRLW <em>mm, mm/m64</em></td>
<td>A</td>
<td>V/V</td>
<td>MMX</td>
<td>Shift words in <em>mm</em> right by amount specified in <em>mm/m64</em> while shifting in 0s.</td></tr>
<tr>
<td>66 0F D1 /<em>r</em> PSRLW <em>xmm1</em>, <em>xmm2/m128</em></td>
<td>A</td>
<td>V/V</td>
<td>SSE2</td>
<td>Shift words in <em>xmm