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BMI2
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<span id="BZHI"></span>
==BZHI==
Zero High Bits Starting with Specified Bit Position <ref>[http://software.intel.com/sites/products/documentation/hpc/composerxe/en-us/2011Update/cpp/lin/intref_cls/common/intref_avx2_bzhi_u.htm _bzhi_u32/u64]</ref>.
<pre>
dest ::= src & ((1 << index)-1);
<span id="PDEP"></span>
==PDEP==
Parallel Bits Deposit <ref>[http://software.intel.com/sites/products/documentation/hpc/composerxe/en-us/2011Update/cpp/lin/intref_cls/common/intref_avx2_pdep_u.htm _pdep_u32/u64]</ref>. May be used to map [[First Rank Attacks|first rank attacks]] to any rank, file, or diagonal on the chess board.
===Intrinsic Prototype===
<span id="PEXT"></span>
==PEXT==
Parallel Bits Extract <ref> [http://software.intel.com/sites/products/documentation/hpc/composerxe/en-us/2011Update/cpp/lin/intref_cls/common/intref_avx2_pext_u.htm _pext_u32/u64]</ref>. Great to get the [[First Rank Attacks#TheOuterSquares|inner six bit]] occupancy of any rank, file, or diagonal as index of six consecutive lower bit, or the up to 12 bits for a [[#PEXTBitboards|magic attack lookup]].
===Intrinsic Prototype===
* [[General Setwise Operations]]
* [[TBM]]
=Forum Posts=
=External Links=
* [https://en.wikipedia.org/wiki/Bit_Manipulation_Instruction_Sets Bit Manipulation Instruction Sets from Wikipedia]
* [http://www.randombit.net/bitbashing/2012/06/22/haswell_bit_permutations.html Bit manipulations using BMI2 — bitbashing], June 22, 2012
* [http://users.atw.hu/instlatx64/GenuineIntel00306C3_Haswell_InstLatX64.txt Haswell Instructions Latency]
* [http://software.intel.com/sites/landingpage/IntrinsicsGuide/ Intel Intrinsics Guide]
