Function _bextr2_u64

#[target_feature(enable = "bmi1")]
pub fn _bextr2_u64(a: u64, control: u64) -> u64

Extracts bits of a specified by control into the least significant bits of the result.

Bits [7,0] of control specify the index to the first bit in the range to be extracted, and bits [15,8] specify the length of the range.

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