Visible to Intel only — GUID: GUID-C631D401-4CEC-42FE-B858-C014A494742B
Visible to Intel only — GUID: GUID-C631D401-4CEC-42FE-B858-C014A494742B
_bextr_u32/64
Extracts contiguous bits from the first source operand to the destination using an index value and length value specified in the second source operand. The corresponding Intel® AVX2 instruction is BEXTR.
Syntax
extern unsigned int _bextr_u32(unsigned int source, unsigned int sb, unsigned int bl); |
extern unsigned __int64 _bextr_u64(unsigned __int64 s1, unsigned int sb, unsigned int bl); |
Arguments
source |
the source from where the bits are extracted |
sb |
start bit, the number of the bit from where the contiguous bits are extracted |
bl |
bit length, the number of bits to be extracted |
Description
Extracts contiguous bits from the first source operand to the destination using an index value and length value specified in the second source operand. The extracted bits are written to the destination starting from the least significant bit. All higher order bits in the destination starting at bit position bl are zeroed. The destination is cleared if no bits are extracted.
Returns
Result of the operation.