Definition of LZCNT. Meaning of LZCNT. Synonyms of LZCNT

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Definition of LZCNT

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Meaning of LZCNT from wikipedia

- Intrinsics. Microsoft. 2012-11-16. Retrieved 2018-05-21. "__lzcnt16, __lzcnt, __lzcnt64". Visual Studio 2008: Visual C++: Compiler Intrinsics. Microsoft...
- encoding of LZCNT takes the same encoding path as the encoding of the BSR (bit scan reverse) instruction. This results in an issue where LZCNT called on...
- ABM flag to indicate LZCNT support (since LZCNT combined with BMI1 and BMI2 completes the expanded ABM instruction set). LZCNT is related to the Bit...
- opcode, then the instruction will execute as LZCNT on systems that support the ABM or LZCNT extensions. LZCNT produces a different result from BSR for most...
- instructions AVX2 vpermd BMI1 andn BMI2 bzhi F16C vcvtph2ps FMA vfmadd132pd LZCNT lzcnt MOVBE movbe OSXSAVE xgetbv x86-64-v4 AVX512F kmovw Intel Skylake and...
- BMI1, MOVBE (Move Big-Endian instruction), XSAVE/XSAVEOPT, ABM (POPCNT/LZCNT), and AMD-V. Over 10% increase in clock frequency Over 15% improvement in...
- number of leading zero bits for packed double- or quadword values Vectorized LZCNT instruction VPBROADCASTMB2Q, VPBROADCASTMW2D Broadcast mask to vector register...
- CR8 in 32-bit mode 4 5 msr Model-specific registers abm/lzcnt Advanced bit mani****tion (LZCNT and POPCNT) 5 6 pae Physical Address Extension sse4a SSE4a...
- BMI1, MOVBE (Move Big-Endian instruction), XSAVE/XSAVEOPT, ABM (POPCNT/LZCNT), and AMD-V. 19% CPU core leakage reduction at 1.2V 38% GPU leakage reduction...
- most Intel chips, it's BSR (bitscan reverse), though newer SoCs also have LZCNT (count leading zeros) Warren, Henry S. (2013). Hacker's Delight (2nd ed...