x86-64.net

Instruction

VPBROADCASTMB2Q

Copies the low 8 bits of a mask register, zero-extended, to every quadword.

Extensions
Forms
3 (3 EVEX)
Data
Intel XED v2026.08.23

Forms

Every encoding of VPBROADCASTMB2Q that Intel XED knows, one row per XED instruction form (iform). How to read the notation.
InstructionEncodingRequires
VPBROADCASTMB2Q zmm, k VPBROADCASTMB2Q_ZMMu64_MASKu64_AVX512CDEVEX.512.F3.0F38.W1 2A /rAVX10.1 or AVX512CD
VPBROADCASTMB2Q xmm, k VPBROADCASTMB2Q_XMMu64_MASKu64_AVX512EVEX.128.F3.0F38.W1 2A /rAVX10.1 or AVX512CD + AVX512VL
VPBROADCASTMB2Q ymm, k VPBROADCASTMB2Q_YMMu64_MASKu64_AVX512EVEX.256.F3.0F38.W1 2A /rAVX10.1 or AVX512CD + AVX512VL

CPUID and processors

Each form belongs to an XED ISA set. A form can be used when the processor reports every CPUID bit of one of its ISA set's alternatives.

CPUID requirements and processors of the XED ISA sets above. Alternatives are separated by “or”; processors follow XED’s chip model, which covers AMD processors up to Zen 2.
ISA setCPUIDProcessors in XED
AVX512CD_512

AVX10.1
CPUID.(EAX=07H,ECX=1):EDX[19] AVX10
CPUID.(EAX=24H,ECX=0):EBX[7:0] ≥ 1 AVX10 version

or

AVX512CD
CPUID.(EAX=07H,ECX=0):EBX[28] AVX512CD

Cannon Lake, Ice Lake (client), Tiger Lake, Nova Lake, Skylake-SP, Cascade Lake, Cooper Lake, Ice Lake (server), Sapphire Rapids, Emerald Rapids, Granite Rapids, Diamond Rapids, Knights Landing, Knights Mill
AVX512CD_128

AVX10.1
CPUID.(EAX=07H,ECX=1):EDX[19] AVX10
CPUID.(EAX=24H,ECX=0):EBX[7:0] ≥ 1 AVX10 version

or

AVX512CD + AVX512VL
CPUID.(EAX=07H,ECX=0):EBX[28] AVX512CD
CPUID.(EAX=07H,ECX=0):EBX[31] AVX512VL

Cannon Lake, Ice Lake (client), Tiger Lake, Nova Lake, Skylake-SP, Cascade Lake, Cooper Lake, Ice Lake (server), Sapphire Rapids, Emerald Rapids, Granite Rapids, Diamond Rapids
AVX512CD_256

AVX10.1
CPUID.(EAX=07H,ECX=1):EDX[19] AVX10
CPUID.(EAX=24H,ECX=0):EBX[7:0] ≥ 1 AVX10 version

or

AVX512CD + AVX512VL
CPUID.(EAX=07H,ECX=0):EBX[28] AVX512CD
CPUID.(EAX=07H,ECX=0):EBX[31] AVX512VL

Cannon Lake, Ice Lake (client), Tiger Lake, Nova Lake, Skylake-SP, Cascade Lake, Cooper Lake, Ice Lake (server), Sapphire Rapids, Emerald Rapids, Granite Rapids, Diamond Rapids

More AVX10.1 instructions

All 686 AVX10.1 instructions

Sources

  1. Intel XED v2026.08.23 (commit 0bcb6237345c): forms, encodings, ISA sets, CPUID bits and chip model.
  2. Intel Advanced Vector Extensions 10.2 Architecture Specification, revision 6.0 (361050-006, January 2026)

The tables are derived from Intel XED, Copyright Intel Corporation, licensed under the Apache License 2.0; x86-64.net converted and reformatted them. The text is our own.