drginfo/ia32-64
1
0
Fork 0
forked from NRZCode/ia32-64
Code Pull requests Activity
ia32-64/x86/cvtdq2pd.html
NRZ Code 92622c37d6 Initial commit
2025-07-08 02:23:29 -03:00

265 lines
21 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!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>CVTDQ2PD
— Convert Packed Doubleword Integers to Packed Double Precision Floating-PointValues</title></head><body><header><nav><ul><li><a href='index.html'>Index</a></li><li>December 2023</li></ul></nav></header><h1>CVTDQ2PD
— Convert Packed Doubleword Integers to Packed Double Precision Floating-PointValues</h1>
<table>
<tr>
<th>Opcode/Instruction</th>
<th>Op / En</th>
<th>64/32 bit Mode Support</th>
<th>CPUID Feature Flag</th>
<th>Description</th></tr>
<tr>
<td>F3 0F E6 /r CVTDQ2PD xmm1, xmm2/m64</td>
<td>A</td>
<td>V/V</td>
<td>SSE2</td>
<td>Convert two packed signed doubleword integers from xmm2/mem to two packed double precision floating-point values in xmm1.</td></tr>
<tr>
<td>VEX.128.F3.0F.WIG E6 /r VCVTDQ2PD xmm1, xmm2/m64</td>
<td>A</td>
<td>V/V</td>
<td>AVX</td>
<td>Convert two packed signed doubleword integers from xmm2/mem to two packed double precision floating-point values in xmm1.</td></tr>
<tr>
<td>VEX.256.F3.0F.WIG E6 /r VCVTDQ2PD ymm1, xmm2/m128</td>
<td>A</td>
<td>V/V</td>
<td>AVX</td>
<td>Convert four packed signed doubleword integers from xmm2/mem to four packed double precision floating-point values in ymm1.</td></tr>
<tr>
<td>EVEX.128.F3.0F.W0 E6 /r VCVTDQ2PD xmm1 {k1}{z}, xmm2/m64/m32bcst</td>
<td>B</td>
<td>V/V</td>
<td>AVX512VL AVX512F</td>
<td>Convert 2 packed signed doubleword integers from xmm2/m64/m32bcst to eight packed double precision floating-point values in xmm1 with writemask k1.</td></tr>
<tr>
<td>EVEX.256.F3.0F.W0 E6 /r VCVTDQ2PD ymm1 {k1}{z}, xmm2/m128/m32bcst</td>
<td>B</td>
<td>V/V</td>
<td>AVX512VL AVX512F</td>
<td>Convert 4 packed signed doubleword integers from xmm2/m128/m32bcst to 4 packed double precision floating-point values in ymm1 with writemask k1.</td></tr>
<tr>
<td>EVEX.512.F3.0F.W0 E6 /r VCVTDQ2PD zmm1 {k1}{z}, ymm2/m256/m32bcst</td>
<td>B</td>
<td>V/V</td>
<td>AVX512F</td>
<td>Convert eight packed signed doubleword integers from ymm2/m256/m32bcst to eight packed double precision floating-point values in zmm1 with writemask k1.</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>Tuple Type</th>
<th>Operand 1</th>
<th>Operand 2</th>
<th>Operand 3</th>
<th>Operand 4</th></tr>
<tr>
<td>A</td>
<td>N/A</td>
<td>ModRM:reg (w)</td>
<td>ModRM:r/m (r)</td>
<td>N/A</td>
<td>N/A</td></tr>
<tr>
<td>B</td>
<td>Half</td>
<td>ModRM:reg (w)</td>
<td>ModRM:r/m (r)</td>
<td>N/A</td>
<td>N/A</td></tr></table>
<h2 id="description">Description<a class="anchor" href="#description">
</a></h2>
<p>Converts two, four or eight packed signed doubleword integers in the source operand (the second operand) to two, four or eight packed double precision floating-point values in the destination operand (the first operand).</p>
<p>EVEX encoded versions: The source operand can be a YMM/XMM/XMM (low 64 bits) register, a 256/128/64-bit memory location or a 256/128/64-bit vector broadcasted from a 32-bit memory location. The destination operand is a ZMM/YMM/XMM register conditionally updated with writemask k1. Attempt to encode this instruction with EVEX embedded rounding is ignored.</p>
<p>VEX.256 encoded version: The source operand is an XMM register or 128- bit memory location. The destination operand is a YMM register.</p>
<p>VEX.128 encoded version: The source operand is an XMM register or 64- bit memory location. The destination operand is a XMM register. The upper Bits (MAXVL-1:128) of the corresponding ZMM register destination are zeroed.</p>
<p>128-bit Legacy SSE version: The source operand is an XMM register or 64- bit memory location. The destination operand is an XMM register. The upper Bits (MAXVL-1:128) of the corresponding ZMM register destination are unmodified.</p>
<p>VEX.vvvv and EVEX.vvvv are reserved and must be 1111b, otherwise instructions will #UD.</p>
<figure id="fig-3-11">
<svg style="width: 475.77604799999995pt; height: 142.12797599999985pt" viewBox="101.24000000000001 0.0 401.48004 123.43997999999988">
<g xmlns="http://www.w3.org/2000/svg" style="stroke: none; fill: none">
<rect height="117.48" style="fill: rgb(0%, 0%, 0%)" width="0.48" x="103.74000000000001" y="0.479979999999955"></rect>
<rect height="117.48" style="fill: rgb(0%, 0%, 0%)" width="0.48004" x="499.74" y="0.479979999999955"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="396.48" x="103.74000000000001" y="0.0"></rect>
<rect height="0.48004" style="fill: rgb(0%, 0%, 0%)" width="396.48" x="103.74000000000001" y="117.95993999999985"></rect>
<path d="M 219.18 83.81997999999999 L 220.8 87.77998000000002 L 221.04000000000002 88.43997999999999 L 220.38 88.49997999999994 L 204.9 90.17998 L 203.16 90.35997999999995 L 204.54000000000002 89.27998000000002 L 216.78 79.61997999999994 L 217.32 79.19997999999998 L 217.56 79.79998 L 217.44 80.39998000000003 L 205.20000000000002 90.05998 L 204.54000000000002 89.27998000000002 L 204.84 89.15998000000002 L 220.32 87.47997999999995 L 220.38 88.49997999999994 L 219.9 88.13998000000004 L 218.28 84.17998" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 217.56 79.79997999999989 L 219.18 83.81997999999987 L 218.28 84.17997999999989 L 216.66 80.1599799999999" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 218.76 83.99997999999994 L 220.38 87.95997999999997 L 204.89999999999998 89.63997999999992 L 217.14 79.97997999999995" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
<path d="M 335.28000000000003 37.31997999999999 L 334.50000000000006 35.45997999999997 L 218.88000000000002 82.85997999999995 L 219.66000000000003 84.71997999999996" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<rect height="13.5" style="fill: rgb(100%, 100%, 100%)" width="37.14" x="429.36" y="22.85997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="37.38" x="429.36" y="22.620000000000005"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="466.26" y="22.85997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="37.38" x="429.12" y="36.120000000000005"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="429.12" y="22.61997999999994"></rect>
<path d="M 431.70000000000005 75.05997999999988 L 431.88000000000005 75.11997999999983 L 432.12000000000006 75.17997999999989 C 433.1 74.98597999999993 433.446 73.89997999999991 432.6 73.31997999999987L 432.4200000000001 73.19997999999987 L 432.24000000000007 73.13997999999992 C 431.266 72.99497999999983 430.617 74.2709799999999 431.40000000000003 74.87997999999993L 431.52000000000004 74.99997999999994 L 431.70000000000005 75.05997999999988" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
<path d="M 432.06 74.21997999999996 L 436.08 75.71997999999996 L 436.68 75.95997999999997 L 436.26 76.49997999999994 L 426.96 89.03998000000001 L 425.94 90.41998000000001 L 426.06 88.67998 L 427.32 73.13997999999992 L 427.44 72.47997999999995 L 428.04 72.71997999999996 L 428.34 73.19997999999998 L 427.08 88.73997999999995 L 426.06 88.67998 L 426.18 88.37997999999993 L 435.48 75.83997999999997 L 436.26 76.49997999999994 L 435.72 76.61997999999994 L 431.7 75.11997999999994" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 428.04 72.71997999999996 L 432.06 74.21997999999996 L 431.70000000000005 75.11997999999994 L 427.68 73.61997999999994" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 431.88 74.63997999999992 L 435.9 76.13997999999992 L 426.6 88.67997999999989 L 427.86 73.13997999999992" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
<path d="M 447.18 36.719979999999964 L 445.32 35.99997999999994 L 431.16 73.79998 L 433.02 74.51997999999992" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 366.66 78.83997999999985 L 366.78000000000003 78.95997999999986 L 366.96000000000004 79.0199799999998 C 367.836 79.46497999999985 368.76300000000003 78.32597999999984 368.16 77.57997999999986L 368.04 77.3999799999998 L 367.92 77.27997999999991 L 367.56 77.1599799999999 L 367.32000000000005 77.09997999999985 L 366.78000000000003 77.27997999999991 L 366.66 77.3999799999998 C 366.351 77.8859799999999 366.35 77.7269799999998 366.36 78.29997999999989L 366.42 78.47997999999984 L 366.66 78.83997999999985" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
<path d="M 367.38 78.11997999999994 L 370.38 81.17997999999989 L 370.8 81.71997999999996 L 370.26 82.01997999999992 L 356.64 89.57997999999998 L 355.08 90.4199799999999 L 355.92 88.85997999999995 L 363.48 75.17997999999989 L 363.84 74.63997999999992 L 364.32 75.05998 L 364.38 75.6599799999999 L 356.82 89.33997999999997 L 355.92 88.85997999999995 L 356.15999999999997 88.67997999999989 L 369.78 81.11997999999994 L 370.26 82.01997999999992 L 369.65999999999997 81.89997999999991 L 366.65999999999997 78.83997999999997" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 364.32 75.05997999999988 L 367.38 78.11997999999983 L 366.65999999999997 78.83997999999985 L 363.59999999999997 75.77997999999991" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 367.02 78.47997999999995 L 370.02 81.5399799999999 L 356.4 89.09997999999996 L 363.96 75.41998000000001" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
<path d="M 409.86 37.07997999999998 L 408.48 35.69997999999998 L 366.66 77.45997999999997 L 368.04 78.83997999999997" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 294.90000000000003 82.01997999999992 L 295.02000000000004 82.19997999999987 L 295.14000000000004 82.31997999999987 C 295.867 82.97597999999994 297.043 82.05997999999988 296.70000000000005 81.17997999999989L 296.58000000000004 80.99997999999994 L 296.46000000000004 80.87997999999993 C 295.939 80.07897999999989 294.54600000000005 80.78897999999992 294.78000000000003 81.6599799999999L 294.78000000000003 81.83997999999997 L 294.90000000000003 82.01997999999992" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
<path d="M 295.74 81.5399799999999 L 297.90000000000003 85.25997999999993 L 298.2 85.85997999999995 L 297.54 85.97997999999995 L 282.54 89.87997999999993 L 280.8 90.35997999999995 L 282.0 89.09997999999985 L 292.68 77.81997999999987 L 293.16 77.27997999999991 L 293.52 77.87997999999993 L 293.46000000000004 78.47997999999995 L 282.78000000000003 89.75997999999993 L 282.0 89.09997999999985 L 282.3 88.9199799999999 L 297.36 85.01997999999992 L 297.54 85.97997999999995 L 297.0 85.79997999999989 L 294.84000000000003 82.07997999999986" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 293.52 77.87997999999993 L 295.74 81.5399799999999 L 294.84 82.07997999999998 L 292.62 78.4199799999999" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<path d="M 295.32 81.77997999999991 L 297.48 85.49997999999994 L 282.42 89.39997999999991 L 293.09999999999997 78.11997999999994" style="fill: rgb(0%, 0%, 0%); fill-rule: evenodd"></path>
<path d="M 372.54 37.19997999999998 L 371.52000000000004 35.51998000000003 L 295.26 80.69997999999998 L 296.28000000000003 82.37997999999993" style="fill: rgb(0%, 0%, 0%); fill-rule: nonzero"></path>
<rect height="13.5" style="fill: rgb(100%, 100%, 100%)" width="37.14" x="392.22" y="22.85997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="37.38" x="392.22" y="22.620000000000005"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="429.12" y="22.85997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="37.38" x="391.98" y="36.120000000000005"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.47998" x="391.98" y="22.61997999999994"></rect>
<rect height="13.5" style="fill: rgb(100%, 100%, 100%)" width="37.08" x="355.14" y="22.85997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="37.32" x="355.14" y="22.620000000000005"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.47998" x="391.98" y="22.85997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="37.32" x="354.90000000000003" y="36.120000000000005"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="354.90000000000003" y="22.61997999999994"></rect>
<rect height="13.86" style="fill: rgb(100%, 100%, 100%)" width="38.64" x="316.5" y="22.499979999999937"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="38.88" x="316.5" y="22.25999999999999"></rect>
<rect height="14.100000000000001" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="354.90000000000003" y="22.499979999999937"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="38.88" x="316.26" y="36.120000000000005"></rect>
<rect height="14.100000000000001" style="fill: rgb(0%, 0%, 0%)" width="0.47998" x="316.26" y="22.259979999999928"></rect>
<rect height="13.5" style="fill: rgb(100%, 100%, 100%)" width="74.22" x="391.68" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="74.46000000000001" x="391.68" y="90.12"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="465.66" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="74.46000000000001" x="391.44" y="103.62"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="391.44" y="90.11997999999994"></rect>
<rect height="13.5" style="fill: rgb(100%, 100%, 100%)" width="74.28" x="168.9" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="74.52" x="168.9" y="90.12"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48" x="242.94" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="74.52" x="168.66" y="103.62"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="168.66" y="90.11997999999994"></rect>
<rect height="13.5" style="fill: rgb(100%, 100%, 100%)" width="84.06" x="233.34" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="84.30000000000001" x="233.34" y="90.12"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="317.16" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="84.30000000000001" x="233.10000000000002" y="103.62"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="233.10000000000002" y="90.11997999999994"></rect>
<rect height="13.5" style="fill: rgb(100%, 100%, 100%)" width="74.28" x="317.40000000000003" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="74.52" x="317.40000000000003" y="90.12"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="391.44" y="90.35997999999995"></rect>
<rect height="0.47998" style="fill: rgb(0%, 0%, 0%)" width="74.52" x="317.16" y="103.62"></rect>
<rect height="13.74" style="fill: rgb(0%, 0%, 0%)" width="0.48001000000000005" x="317.16" y="90.11997999999994"></rect>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.414416800000026pt; fill: #000" textLength="9.172166699999991" x="329.04" y="32.970877799999926">X3</text>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.414416800000026pt; fill: #000" textLength="83.45216670000002" x="366.18" y="32.970877799999926">X2 X1 X0</text>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.414416800000026pt; fill: #000" textLength="15.82151632" x="149.45976564" y="34.59138643999995">SRC</text>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.414416800000026pt; fill: #000" textLength="9.23248510000002" x="192.54" y="100.47087779999993">X3</text>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.414416800000026pt; fill: #000" textLength="9.172166699999991" x="276.90000000000003" y="100.47087779999993">X2</text>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.80058169554718pt; fill: #000" textLength="9.904999895989476" x="351.24" y="100.5438892632261">X1</text>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.80058169554718pt; fill: #000" textLength="9.844471945989483" x="425.399176" y="100.5438892632261">X0</text>
<text lengthAdjust="spacingAndGlyphs" style="font-size: 8.414416800000026pt; fill: #000" textLength="20.024954820000005" x="149.22" y="103.83087779999994">DEST</text></g></svg>
<figcaption><a href='cvtdq2pd.html#fig-3-11'>Figure 3-11</a>. CVTDQ2PD (VEX.256 encoded version)</figcaption></figure>
<h2 id="operation">Operation<a class="anchor" href="#operation">
</a></h2>
<h3 id="vcvtdq2pd--evex-encoded-versions--when-src-operand-is-a-register">VCVTDQ2PD (EVEX Encoded Versions) When SRC Operand is a Register<a class="anchor" href="#vcvtdq2pd--evex-encoded-versions--when-src-operand-is-a-register">
</a></h3>
<pre>(KL, VL) = (2, 128), (4, 256), (8, 512)
FOR j := 0 TO KL-1
i := j * 64
k := j * 32
IF k1[j] OR *no writemask*
THEN DEST[i+63:i] :=
Convert_Integer_To_Double_Precision_Floating_Point(SRC[k+31:k])
ELSE
IF *merging-masking* ; merging-masking
THEN *DEST[i+63:i] remains unchanged*
ELSE ; zeroing-masking
DEST[i+63:i] := 0
FI
FI;
ENDFOR
DEST[MAXVL-1:VL] := 0
</pre>
<h3 id="vcvtdq2pd--evex-encoded-versions--when-src-operand-is-a-memory-source">VCVTDQ2PD (EVEX Encoded Versions) When SRC Operand is a Memory Source<a class="anchor" href="#vcvtdq2pd--evex-encoded-versions--when-src-operand-is-a-memory-source">
</a></h3>
<pre>(KL, VL) = (2, 128), (4, 256), (8, 512)
FOR j := 0 TO KL-1
i := j * 64
k := j * 32
IF k1[j] OR *no writemask*
THEN
IF (EVEX.b = 1)
THEN
DEST[i+63:i] :=
Convert_Integer_To_Double_Precision_Floating_Point(SRC[31:0])
ELSE
DEST[i+63:i] :=
Convert_Integer_To_Double_Precision_Floating_Point(SRC[k+31:k])
FI;
ELSE
IF *merging-masking* ; merging-masking
THEN *DEST[i+63:i] remains unchanged*
ELSE ; zeroing-masking
DEST[i+63:i] := 0
FI
FI;
ENDFOR
DEST[MAXVL-1:VL] := 0
</pre>
<h3 id="vcvtdq2pd--vex-256-encoded-version-">VCVTDQ2PD (VEX.256 Encoded Version)<a class="anchor" href="#vcvtdq2pd--vex-256-encoded-version-">
</a></h3>
<pre>DEST[63:0] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[31:0])
DEST[127:64] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[63:32])
DEST[191:128] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[95:64])
DEST[255:192] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[127:96)
DEST[MAXVL-1:256] := 0
</pre>
<h3 id="vcvtdq2pd--vex-128-encoded-version-">VCVTDQ2PD (VEX.128 Encoded Version)<a class="anchor" href="#vcvtdq2pd--vex-128-encoded-version-">
</a></h3>
<pre>DEST[63:0] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[31:0])
DEST[127:64] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[63:32])
DEST[MAXVL-1:128] := 0
</pre>
<h3 id="cvtdq2pd--128-bit-legacy-sse-version-">CVTDQ2PD (128-bit Legacy SSE Version)<a class="anchor" href="#cvtdq2pd--128-bit-legacy-sse-version-">
</a></h3>
<pre>DEST[63:0] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[31:0])
DEST[127:64] := Convert_Integer_To_Double_Precision_Floating_Point(SRC[63:32])
DEST[MAXVL-1:128] (unmodified)
</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>VCVTDQ2PD __m512d _mm512_cvtepi32_pd( __m256i a);
</pre>
<pre>VCVTDQ2PD __m512d _mm512_mask_cvtepi32_pd( __m512d s, __mmask8 k, __m256i a);
</pre>
<pre>VCVTDQ2PD __m512d _mm512_maskz_cvtepi32_pd( __mmask8 k, __m256i a);
</pre>
<pre>VCVTDQ2PD __m256d _mm256_cvtepi32_pd (__m128i src);
</pre>
<pre>VCVTDQ2PD __m256d _mm256_mask_cvtepi32_pd( __m256d s, __mmask8 k, __m256i a);
</pre>
<pre>VCVTDQ2PD __m256d _mm256_maskz_cvtepi32_pd( __mmask8 k, __m256i a);
</pre>
<pre>VCVTDQ2PD __m128d _mm_mask_cvtepi32_pd( __m128d s, __mmask8 k, __m128i a);
</pre>
<pre>VCVTDQ2PD __m128d _mm_maskz_cvtepi32_pd( __mmask8 k, __m128i a);
</pre>
<pre>CVTDQ2PD __m128d _mm_cvtepi32_pd (__m128i src)
</pre>
<h2 class="exceptions" id="other-exceptions">Other Exceptions<a class="anchor" href="#other-exceptions">
</a></h2>
<p>VEX-encoded instructions, see <span class="not-imported">Table 2-22</span>, “Type 5 Class Exception Conditions.”</p>
<p>EVEX-encoded instructions, see <span class="not-imported">Table 2-51</span>, “Type E5 Class Exception Conditions.”</p>
<p>Additionally:</p>
<table>
<tr>
<td>#UD</td>
<td>If VEX.vvvv != 1111B or EVEX.vvvv != 1111B.</td></tr></table><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>
View git blame Copy permalink