_bextr_u32/64

Syntax

extern unsigned int _bextr_u32(unsigned int source, unsigned int start_bit, unsigned int len_in_bits);

extern unsigned __int64 _bextr_u64(unsigned __int64 s1, unsigned int start_bit, unsigned int len_in_bits);

Arguments

source	the source from where the bits are extracted
strat-bit	the number of the bit from where the contiguous bits are extracted
len_in_bits	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 LENGTH are zeroed. The destination is cleared if no bits are extracted.

Returns

Result of the operation.