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- Find_first_set abstract "In software, find first set (ffs) or find first one is a bit operation that, given an unsigned machine word, identifies the least significant index or position of the bits set to one in the word. A nearly equivalent operation is count trailing zeros (ctz) or number of trailing zeros (ntz), which counts the number of zero bits following the least significant one bit. The complementary operation that finds the index or position of the most significant set bit is log base 2, so called because it computes the binary logarithm . This is closely related to count leading zeros (clz) or number of leading zeros (nlz), which counts the number of zero bits preceding the most significant one bit. These four operations also have negated versions: find first zero (ffz), which identifies the index of the least significant zero bit; count trailing ones, which counts the number of one bits following the least significant zero bit. count leading ones, which counts the number of one bits preceding the most significant zero bit; The operation that finds the index of the most significant zero bit, which does not have a common name.There are two common variants of find first set, the POSIX definition which starts indexing of bits at 1, herein labelled ffs, and the variant which starts indexing of bits at zero, which is equivalent to ctz and so will be called by that name.".
- Find_first_set wikiPageExternalLink BitScan.
- Find_first_set wikiPageExternalLink bithacks.html.
- Find_first_set wikiPageExternalLink IntegerLogObvious.
- Find_first_set wikiPageExternalLink ZerosOnRightLinear.
- Find_first_set wikiPageID "31689303".
- Find_first_set wikiPageRevisionID "597113863".
- Find_first_set hasPhotoCollection Find_first_set.
- Find_first_set subject Category:Binary_arithmetic.
- Find_first_set subject Category:Computer_arithmetic.
- Find_first_set comment "In software, find first set (ffs) or find first one is a bit operation that, given an unsigned machine word, identifies the least significant index or position of the bits set to one in the word. A nearly equivalent operation is count trailing zeros (ctz) or number of trailing zeros (ntz), which counts the number of zero bits following the least significant one bit.".
- Find_first_set label "Find first set".
- Find_first_set sameAs m.0hzrvsj.
- Find_first_set sameAs Q5449888.
- Find_first_set sameAs Q5449888.
- Find_first_set wasDerivedFrom Find_first_set?oldid=597113863.
- Find_first_set isPrimaryTopicOf Find_first_set.