Counts the number of trailing least significant zero bits in source operand and returns the result in destination. When source operand is 0, it returns its size in bits. The corresponding Intel® AVX2 instruction is
- the source operand used for the operation
Searches the source operand for the least significant set bit. If a least significant 1 bit is found, its bit index is returned, otherwise the result is the number of bits in the operand size.
Result of the operation.