Changes

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> .

| 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>