Scalar version of SSE move mask instruction

SSE instruction PMOVMSKB gathers all most significant bits from bytes and stores them as a single 16-bit value; similar action is performed by MOVMSKPD and MOVMSKPS.

Such operation could be easily done using scalar multiplication. Read more ...

Asymmetric numeral systems

Very interesting idea: Asymmetric numeral systems: entropy coding combining speed of Huffman coding with compression rate of arithmetic coding.