Developer Guide and Reference

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_blsr_u32/64

Copies all bits from the source operand to the destination and resets (=0) the bit position in the destination that corresponds to the lowest set bit of the source operand. The corresponding Intel® AVX2 instruction is
BLSR
.

Syntax

extern unsigned int _blsr_u32(unsigned int s1);
extern unsigned __int64 _blsr_u64(unsigned __int64 s1);
Arguments
s1
the source operand from where the bits are copied
Description
Copies all bits from the source operand to the destination and resets (=0) the bit position in the destination that corresponds to the lowest set bit of the source operand.
Returns
Result of the operation