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118 lines
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118 lines
5.9 KiB
HTML
<!DOCTYPE html>
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<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>VPMADD52LUQ
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— Packed Multiply of Unsigned 52-Bit Integers and Add the Low 52-Bit Productsto Qword Accumulators</title></head><body><header><nav><ul><li><a href='index.html'>Index</a></li><li>December 2023</li></ul></nav></header><h1>VPMADD52LUQ
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— Packed Multiply of Unsigned 52-Bit Integers and Add the Low 52-Bit Productsto Qword Accumulators</h1>
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<table>
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<tr>
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<th>Opcode/Instruction</th>
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<th>Op/En</th>
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<th>64/32 Bit Mode Support</th>
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<th>CPUID</th>
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<th>Description</th></tr>
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<tr>
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<td>EVEX.128.66.0F38.W1 B4 /r VPMADD52LUQ xmm1 {k1}{z}, xmm2,xmm3/m128/m64bcst</td>
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<td>A</td>
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<td>V/V</td>
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<td>AVX512_IFMA AVX512VL</td>
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<td>Multiply unsigned 52-bit integers in xmm2 and xmm3/m128 and add the low 52 bits of the 104-bit product to the qword unsigned integers in xmm1 using writemask k1.</td></tr>
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<tr>
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<td>EVEX.256.66.0F38.W1 B4 /r VPMADD52LUQ ymm1 {k1}{z}, ymm2, ymm3/m256/m64bcst</td>
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<td>A</td>
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<td>V/V</td>
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<td>AVX512_IFMA AVX512VL</td>
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<td>Multiply unsigned 52-bit integers in ymm2 and ymm3/m256 and add the low 52 bits of the 104-bit product to the qword unsigned integers in ymm1 using writemask k1.</td></tr>
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<tr>
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<td>EVEX.512.66.0F38.W1 B4 /r VPMADD52LUQ zmm1 {k1}{z}, zmm2,zmm3/m512/m64bcst</td>
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<td>A</td>
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<td>V/V</td>
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<td>AVX512_IFMA</td>
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<td>Multiply unsigned 52-bit integers in zmm2 and zmm3/m512 and add the low 52 bits of the 104-bit product to the qword unsigned integers in zmm1 using writemask k1.</td></tr></table>
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<h2 id="instruction-operand-encoding">Instruction Operand Encoding<a class="anchor" href="#instruction-operand-encoding">
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¶
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</a></h2>
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<table>
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<tr>
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<th>Op/En</th>
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<th>Tuple Type</th>
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<th>Operand 1</th>
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<th>Operand 2</th>
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<th>Operand 3</th>
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<th>Operand 4</th></tr>
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<tr>
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<td>A</td>
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<td>Full</td>
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<td>ModRM:reg (r, w)</td>
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<td>EVEX.vvvv (r)</td>
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<td>ModRM:r/m(r)</td>
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<td>N/A</td></tr></table>
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<h3 id="description">Description<a class="anchor" href="#description">
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¶
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</a></h3>
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<p>Multiplies packed unsigned 52-bit integers in each qword element of the first source operand (the second operand) with the packed unsigned 52-bit integers in the corresponding elements of the second source operand (the third operand) to form packed 104-bit intermediate results. The low 52-bit, unsigned integer of each 104-bit product is added to the corresponding qword unsigned integer of the destination operand (the first operand) under the writemask k1.</p>
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<p>The first source operand is a ZMM/YMM/XMM register. The second source operand can be a ZMM/YMM/XMM register, a 512/256/128-bit memory location or a 512/256/128-bit vector broadcasted from a 64-bit memory location. The destination operand is a ZMM/YMM/XMM register conditionally updated with writemask k1 at 64-bit granularity.</p>
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<h3 id="operation">Operation<a class="anchor" href="#operation">
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¶
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</a></h3>
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<h4 id="vpmadd52luq--evex-encoded-">VPMADD52LUQ (EVEX encoded)<a class="anchor" href="#vpmadd52luq--evex-encoded-">
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¶
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</a></h4>
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<pre>(KL, VL) = (2, 128), (4, 256), (8, 512)
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FOR j := 0 TO KL-1
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i := j * 64;
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IF k1[j] OR *no writemask* THEN
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IF src2 is Memory AND EVEX.b=1 THEN
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tsrc2[63:0] := ZeroExtend64(src2[51:0]);
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ELSE
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tsrc2[63:0] := ZeroExtend64(src2[i+51:i];
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FI;
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Temp128[127:0] := ZeroExtend64(src1[i+51:i]) * tsrc2[63:0];
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Temp2[63:0] := DEST[i+63:i] + ZeroExtend64(temp128[51:0]) ;
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DEST[i+63:i] := Temp2[63:0];
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ELSE
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IF *zeroing-masking* THEN
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DEST[i+63:i] := 0;
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ELSE *merge-masking*
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DEST[i+63:i] is unchanged;
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FI;
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FI;
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ENDFOR
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DEST[MAX_VL-1:VL] := 0;
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</pre>
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<h3 id="intel-c-c++-compiler-intrinsic-equivalent">Intel C/C++ Compiler Intrinsic Equivalent<a class="anchor" href="#intel-c-c++-compiler-intrinsic-equivalent">
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¶
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</a></h3>
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<pre>VPMADD52LUQ __m512i _mm512_madd52lo_epu64( __m512i a, __m512i b, __m512i c);
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</pre>
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<pre>VPMADD52LUQ __m512i _mm512_mask_madd52lo_epu64(__m512i s, __mmask8 k, __m512i a, __m512i b, __m512i c);
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</pre>
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<pre>VPMADD52LUQ __m512i _mm512_maskz_madd52lo_epu64( __mmask8 k, __m512i a, __m512i b, __m512i c);
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</pre>
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<pre>VPMADD52LUQ __m256i _mm256_madd52lo_epu64( __m256i a, __m256i b, __m256i c);
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</pre>
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<pre>VPMADD52LUQ __m256i _mm256_mask_madd52lo_epu64(__m256i s, __mmask8 k, __m256i a, __m256i b, __m256i c);
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</pre>
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<pre>VPMADD52LUQ __m256i _mm256_maskz_madd52lo_epu64( __mmask8 k, __m256i a, __m256i b, __m256i c);
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</pre>
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<pre>VPMADD52LUQ __m128i _mm_madd52lo_epu64( __m128i a, __m128i b, __m128i c);
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</pre>
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<pre>VPMADD52LUQ __m128i _mm_mask_madd52lo_epu64(__m128i s, __mmask8 k, __m128i a, __m128i b, __m128i c);
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</pre>
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<pre>VPMADD52LUQ __m128i _mm_maskz_madd52lo_epu64( __mmask8 k, __m128i a, __m128i b, __m128i c);
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</pre>
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<h3 id="flags-affected">Flags Affected<a class="anchor" href="#flags-affected">
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¶
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</a></h3>
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<p>None.</p>
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<h3 class="exceptions" id="simd-floating-point-exceptions">SIMD Floating-Point Exceptions<a class="anchor" href="#simd-floating-point-exceptions">
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¶
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</a></h3>
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<p>None.</p>
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<h3 class="exceptions" id="other-exceptions">Other Exceptions<a class="anchor" href="#other-exceptions">
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¶
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</a></h3>
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<p>See <span class="not-imported">Table 2-49</span>, “Type E4 Class Exception Conditions.”</p><footer><p>
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This UNOFFICIAL, mechanically-separated, non-verified reference is provided for convenience, but it may be
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inc<span style="opacity: 0.2">omp</span>lete or b<sub>r</sub>oke<sub>n</sub> in various obvious or non-obvious
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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.
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</p></footer></body></html>
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