t values from xmm2 and xmm3/mem.</td></tr>
<tr>
<td>VEX.NDS.256.66.0F.WIG 7C /r VHADDPD ymm1, ymm2, ymm3/m256</td>
<td>RVM</td>
<td>V/V</td>
<td>AVX</td>
<td>Horizontal add packed double-precision floating-point values from ymm2 and ymm3/mem.</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>
<t