em></td>
<td>RM</td>
<td>V/V</td>
<td>AVX</td>
<td>Perform a packed comparison of string data with implicit lengths, generating an index, and storing the result in ECX.</td></tr></table>
<h2 id="instruction-operand-encoding">Instruction Operand Encoding<a class="anchor" href="#instruction-operand-encoding">
			¶
		</a></h2>
<table>
<tr>
<td>Op/En</td>
<td>Operand 1</td>
<td>Operand 2</td>
<td>Operand 3</td>
<td>Operand 4</td></tr>
<tr>
<td>RM</td>
<td>ModRM:reg (r)</td>
<td>ModRM:r/m (r)</td>
<td>imm8</td>