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<span id="TrailingZeroCount"></span>
==Trailing Zero Count==
Bitscan forward is identical with a '''Trailing Zero Count''' for none empty sets, possibly available as machine instruction on some architectures, for instance the [[x86-64]] bit-manipulation expansion set [[BMI1]], with some difficulties to use the [[BMI1#TZCNT|_tzcnt_u64]] intrisic with [https://en.wikipedia.org/wiki/Microsoft_Visual_Studio Visual Studio] <ref>[http://userswww.atwtalkchess.hucom/instlatx64forum3/GenuineIntel00306C3_Haswell_InstLatX64viewtopic.txt Haswell Instructions Latencyphp?f=7&t=74989 Looking for intrinsic "least significant bit" on Visual Studio]by [[Oliver Brausch]], [[CCC]], September 03, 2020</ref> .
<span id="DeBruijnMultiplation"></span>
==De Bruijn Multiplication==
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| style="text-align:center;" | [[BMI1#LZCNT|TZCNT]] <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74989 Looking for intrinsic "least significant bit" on Visual Studio] by [[Oliver Brausch]], [[CCC]], September 03, 2020</ref>
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* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=70202 CPW bitscan with reset could someone explain this line?] by [[Mahmoud Uthman]], [[CCC]], March 14, 2019
==2020 ...==
* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=74989 Looking for intrinsic "least significant bit" on Visual Studio] by [[Oliver Brausch]], [[CCC]], September 03, 2020 » [[BitScan#TrailingZeroCount|TrailingZeroCountTrailing Zero Count]]* [http://www.talkchess.com/forum3/viewtopic.php?f=7&t=75818 C++20 standard bit operations] by [[Jon Dart]], [[CCC]], November 15, 2020 » [[General Setwise Operations]], [[Population Count]], [[Cpp|C++]]* [https://www.talkchess.com/forum3/viewtopic.php?f=7&t=79739 Optimizing Matt Taylor's Folding trick] by [[Daniel Infuehr]], [[CCC]], April 21, 2022
=External Links=
