RC2[127:64]
DEST[VLMAX-1:128] ← 0</pre>
<p><strong>VORPD (VEX.256 encoded version)</strong></p>
<pre>DEST[63:0] ← SRC1[63:0] BITWISE OR SRC2[63:0]
DEST[127:64] ← SRC1[127:64] BITWISE OR SRC2[127:64]
DEST[191:128] ← SRC1[191:128] BITWISE OR SRC2[191:128]
DEST[255:192] ← SRC1[255:192] BITWISE OR SRC2[255:192]</pre>
<h2>Intel<em><sup>® </sup></em>C/C++ Compiler Intrinsic Equivalent</h2>
<p>ORPD:</p>
<p>__m128d _mm_or_pd(__m128d a, __m128d b);</p>
<p>VORPD:</p>
<p> __m256d _mm256_or_pd (__m256d a, __