forked from NRZCode/ia32-64
135 lines
9.4 KiB
HTML
135 lines
9.4 KiB
HTML
<!DOCTYPE html>
|
||
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:svg="http://www.w3.org/2000/svg" xmlns:x86="http://www.felixcloutier.com/x86"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><link rel="stylesheet" type="text/css" href="style.css"></link><title>ADDSUBPD
|
||
— Packed Double Precision Floating-Point Add/Subtract</title></head><body><header><nav><ul><li><a href='index.html'>Index</a></li><li>December 2023</li></ul></nav></header><h1>ADDSUBPD
|
||
— Packed Double Precision Floating-Point Add/Subtract</h1>
|
||
|
||
<table>
|
||
<tr>
|
||
<th>Opcode/Instruction</th>
|
||
<th>Op/En</th>
|
||
<th>64/32-bit Mode</th>
|
||
<th>CPUID Feature Flag</th>
|
||
<th>Description</th></tr>
|
||
<tr>
|
||
<td>66 0F D0 /r ADDSUBPD xmm1, xmm2/m128</td>
|
||
<td>RM</td>
|
||
<td>V/V</td>
|
||
<td>SSE3</td>
|
||
<td>Add/subtract double precision floating-point values from xmm2/m128 to xmm1.</td></tr>
|
||
<tr>
|
||
<td>VEX.128.66.0F.WIG D0 /r VADDSUBPD xmm1, xmm2, xmm3/m128</td>
|
||
<td>RVM</td>
|
||
<td>V/V</td>
|
||
<td>AVX</td>
|
||
<td>Add/subtract packed double precision floating-point values from xmm3/mem to xmm2 and stores result in xmm1.</td></tr>
|
||
<tr>
|
||
<td>VEX.256.66.0F.WIG D0 /r VADDSUBPD ymm1, ymm2, ymm3/m256</td>
|
||
<td>RVM</td>
|
||
<td>V/V</td>
|
||
<td>AVX</td>
|
||
<td>Add / subtract packed double precision floating-point values from ymm3/mem to ymm2 and stores result in ymm1.</td></tr></table>
|
||
<h2 id="instruction-operand-encoding">Instruction Operand Encoding<a class="anchor" href="#instruction-operand-encoding">
|
||
¶
|
||
</a></h2>
|
||
<table>
|
||
<tr>
|
||
<th>Op/En</th>
|
||
<th>Operand 1</th>
|
||
<th>Operand 2</th>
|
||
<th>Operand 3</th>
|
||
<th>Operand 4</th></tr>
|
||
<tr>
|
||
<td>RM</td>
|
||
<td>ModRM:reg (r, w)</td>
|
||
<td>ModRM:r/m (r)</td>
|
||
<td>N/A</td>
|
||
<td>N/A</td></tr>
|
||
<tr>
|
||
<td>RVM</td>
|
||
<td>ModRM:reg (w)</td>
|
||
<td>VEX.vvvv (r)</td>
|
||
<td>ModRM:r/m (r)</td>
|
||
<td>N/A</td></tr></table>
|
||
<h2 id="description">Description<a class="anchor" href="#description">
|
||
¶
|
||
</a></h2>
|
||
<p>Adds odd-numbered double precision floating-point values of the first source operand (second operand) with the corresponding double precision floating-point values from the second source operand (third operand); stores the result in the odd-numbered values of the destination operand (first operand). Subtracts the even-numbered double precision floating-point values from the second source operand from the corresponding double precision floating values in the first source operand; stores the result into the even-numbered values of the destination operand.</p>
|
||
<p>In 64-bit mode, using a REX prefix in the form of REX.R permits this instruction to access additional registers (XMM8-XMM15).</p>
|
||
<p>128-bit Legacy SSE version: The second source can be an XMM register or an 128-bit memory location. The destination is not distinct from the first source XMM register and the upper bits (MAXVL-1:128) of the corresponding YMM register destination are unmodified. See <a href='addsubpd.html#fig-3-3'>Figure 3-3</a>.</p>
|
||
<p>VEX.128 encoded version: the first source operand is an XMM register or 128-bit memory location. The destination operand is an XMM register. The upper bits (MAXVL-1:128) of the corresponding YMM register destination are zeroed.</p>
|
||
<p>VEX.256 encoded version: The first source operand is a YMM register. The second source operand can be a YMM register or a 256-bit memory location. The destination operand is a YMM register.</p>
|
||
<figure id="fig-3-3">
|
||
<svg style="width: 432.018pt; height: 151.206pt" viewBox="128.824 0.0 365.015 131.005">
|
||
<g xmlns="http://www.w3.org/2000/svg" style="stroke: none; fill: none">
|
||
<rect height="126.00500000000001" style="stroke: rgb(0%, 0%, 0%)" width="360.015" x="131.324" y="0.0"></rect>
|
||
<rect height="27.001" style="fill: rgb(0%, 0%, 0%)" width="144.006" x="144.82500000000002" y="25.875999999999976"></rect>
|
||
<rect height="27.001" style="stroke: rgb(0%, 0%, 0%)" width="144.006" x="144.82500000000002" y="25.875999999999976"></rect>
|
||
<rect height="27.001" style="fill: rgb(0%, 0%, 0%)" width="144.006" x="144.82500000000002" y="74.25300000000004"></rect>
|
||
<rect height="27.001" style="stroke: rgb(0%, 0%, 0%)" width="144.006" x="144.82500000000002" y="74.25300000000004"></rect>
|
||
<rect height="27.001" style="fill: rgb(0%, 0%, 0%)" width="144.006" x="288.831" y="74.25300000000004"></rect>
|
||
<rect height="27.001" style="stroke: rgb(0%, 0%, 0%)" width="144.006" x="288.831" y="74.25300000000004"></rect>
|
||
<rect height="27.001" style="fill: rgb(0%, 0%, 0%)" width="144.006" x="288.831" y="25.875999999999976"></rect>
|
||
<rect height="27.001" style="stroke: rgb(0%, 0%, 0%)" width="144.006" x="288.831" y="25.875999999999976"></rect>
|
||
<path d="M 216.828 69.09300000000007 L 216.828 52.88200000000006" style="fill-rule: nonzero; stroke: rgb(0%, 0%, 0%)"></path>
|
||
<path d="M 219.588 68.73300000000006 L 216.828 74.25300000000004 L 214.06799999999998 68.73300000000006 L 219.588 68.73300000000006" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
|
||
<path d="M 360.834 69.09300000000007 L 360.834 52.88200000000006" style="fill-rule: nonzero; stroke: rgb(0%, 0%, 0%)"></path>
|
||
<path d="M 363.594 68.73300000000006 L 360.834 74.25300000000004 L 358.074 68.73300000000006 L 363.594 68.73300000000006" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="116.90838390000019" x="230.38335018" y="18.14341284000011">ADDSUBPD xmm1, xmm2/m128</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="44.009650300000146" x="436.83669189000005" y="43.456362040000045">xmm2/m128</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="28.913084200000014" x="202.3676" y="43.456863">[127:64]</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="20.016750600000023" x="350.82370000000003" y="43.456863">[63:0]</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="32.30521139999996" x="436.83669189000005" y="87.03319611000006">RESULT:</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="132.73297730000004" x="150.4553" y="91.83386300000006">xmm1[127:64] + xmm2/m128[127:64]</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="112.93223480000023" x="304.3718" y="91.83386300000006">xmm1[63:0] - xmm2/m128[63:0]</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="21.776816600000075" x="436.83669189000005" y="96.63355611000009">xmm1</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="28.913084200000014" x="202.3775" y="115.48466300000007">[127:64]</text>
|
||
<text lengthAdjust="spacingAndGlyphs" style="font-size: 7.408277799999951pt; fill: #000" textLength="20.016750600000023" x="350.83346689" y="115.48466300000007">[63:0]</text></g></svg>
|
||
<figcaption><a href='addsubpd.html#fig-3-3'>Figure 3-3</a>. ADDSUBPD—Packed Double Precision Floating-Point Add/Subtract</figcaption></figure>
|
||
<h2 id="operation">Operation<a class="anchor" href="#operation">
|
||
¶
|
||
</a></h2>
|
||
<h3 id="addsubpd--128-bit-legacy-sse-version-">ADDSUBPD (128-bit Legacy SSE Version)<a class="anchor" href="#addsubpd--128-bit-legacy-sse-version-">
|
||
¶
|
||
</a></h3>
|
||
<pre>DEST[63:0] := DEST[63:0] - SRC[63:0]
|
||
DEST[127:64] := DEST[127:64] + SRC[127:64]
|
||
DEST[MAXVL-1:128] (Unmodified)
|
||
</pre>
|
||
<h3 id="vaddsubpd--vex-128-encoded-version-">VADDSUBPD (VEX.128 Encoded Version)<a class="anchor" href="#vaddsubpd--vex-128-encoded-version-">
|
||
¶
|
||
</a></h3>
|
||
<pre>DEST[63:0] := SRC1[63:0] - SRC2[63:0]
|
||
DEST[127:64] := SRC1[127:64] + SRC2[127:64]
|
||
DEST[MAXVL-1:128] := 0
|
||
</pre>
|
||
<h3 id="vaddsubpd--vex-256-encoded-version-">VADDSUBPD (VEX.256 Encoded Version)<a class="anchor" href="#vaddsubpd--vex-256-encoded-version-">
|
||
¶
|
||
</a></h3>
|
||
<pre>DEST[63:0] := SRC1[63:0] - SRC2[63:0]
|
||
DEST[127:64] := SRC1[127:64] + SRC2[127:64]
|
||
DEST[191:128] := SRC1[191:128] - SRC2[191:128]
|
||
DEST[255:192] := SRC1[255:192] + SRC2[255:192]
|
||
</pre>
|
||
<h2 id="intel-c-c++-compiler-intrinsic-equivalent">Intel C/C++ Compiler Intrinsic Equivalent<a class="anchor" href="#intel-c-c++-compiler-intrinsic-equivalent">
|
||
¶
|
||
</a></h2>
|
||
<pre>ADDSUBPD __m128d _mm_addsub_pd(__m128d a, __m128d b)
|
||
</pre>
|
||
<pre>VADDSUBPD __m256d _mm256_addsub_pd (__m256d a, __m256d b)
|
||
</pre>
|
||
<h2 class="exceptions" id="exceptions">Exceptions<a class="anchor" href="#exceptions">
|
||
¶
|
||
</a></h2>
|
||
<p>When the source operand is a memory operand, it must be aligned on a 16-byte boundary or a general-protection exception (#GP) will be generated.</p>
|
||
<h2 class="exceptions" id="simd-floating-point-exceptions">SIMD Floating-Point Exceptions<a class="anchor" href="#simd-floating-point-exceptions">
|
||
¶
|
||
</a></h2>
|
||
<p>Overflow, Underflow, Invalid, Precision, Denormal.</p>
|
||
<h2 class="exceptions" id="other-exceptions">Other Exceptions<a class="anchor" href="#other-exceptions">
|
||
¶
|
||
</a></h2>
|
||
<p>See <span class="not-imported">Table 2-19</span>, “Type 2 Class Exception Conditions.”</p><footer><p>
|
||
This UNOFFICIAL, mechanically-separated, non-verified reference is provided for convenience, but it may be
|
||
inc<span style="opacity: 0.2">omp</span>lete or b<sub>r</sub>oke<sub>n</sub> in various obvious or non-obvious
|
||
ways. Refer to <a href="https://software.intel.com/en-us/download/intel-64-and-ia-32-architectures-sdm-combined-volumes-1-2a-2b-2c-2d-3a-3b-3c-3d-and-4">Intel® 64 and IA-32 Architectures Software Developer’s Manual</a> for anything serious.
|
||
</p></footer></body></html>
|