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<title>SUBPD: Subtract Packed Double-Precision Floating-Point Values (x86 Instruction Set Reference)</title>
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<div class="main_container"><h1>x86 Instruction Set Reference</h1>
<title>SUBPD: Subtract Packed Double-Precision Floating-Point Values (x86 Instruction Set Reference)</title>
<h1>SUBPD</h1>
<h2>Subtract Packed Double-Precision Floating-Point Values</h2>
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<th>Opcode</th>
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<th>Description</th>
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<td class="grid"><code>66 0F 5C /r</code></td>
<td class="grid"><code>SUBPD xmm1, xmm2/m128 Subtract packed double-precision floating-point values in xmm2/m128 from xmm1.</code></td>
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<th>Description</th>
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<p>Performs an SIMD subtract of the two packed double-precision floating-point values in the source operand (second operand) from the two packed double-precision floating-point values in the destination operand (first operand), and stores the packed double-precision floating-point results in the destination operand. The source operand can be an XMM register or a 128-bit memory location. The destination operand is an XMM register. See Figure 11-3 in the IA-32 Intel Architecture Software Developer's Manual, Volume 1 for an illustration of an SIMD double-precision floating-point operation.</p>
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<pre>Destination<span class="operator">[</span><span class="number">0..63</span><span class="operator">]</span> <span class="operator">=</span> Destination<span class="operator">[</span><span class="number">0..63</span><span class="operator">]</span> <span class="operator">-</span> Source<span class="operator">[</span><span class="number">0..63</span><span class="operator">]</span><span class="operator">;</span>
Destination<span class="operator">[</span><span class="number">64..127</span><span class="operator">]</span> <span class="operator">=</span> Destination<span class="operator">[</span><span class="number">64..127</span><span class="operator">]</span> <span class="operator">-</span> Source<span class="operator">[</span><span class="number">64..127</span><span class="operator">]</span><span class="operator">;</span>
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<th>Instruction</th>
<th>Latency</th>
<th>Throughput</th>
<th>Execution Unit</th>
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<tr><td class="grid"><code>CPUID</code></td><td class="grid">0F3n/0F2n/069n</td><td class="grid">0F3n/0F2n/069n</td><td class="grid">0F2n</td></tr>
<tr><td class="grid"><code>SUBPD xmm, xmm</code></td><td class="grid">5/4/4</td><td class="grid">2/2/2</td><td class="grid">FP_ADD</td></tr>
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