Thank you again! Take a look: https://github.com/WojciechMula/toys/tree/master/avx512-remo...

Your AVX2 is better in benchmarks than Zach's AVX512VBMI, wow. I have to admit that looked at the code but got lost. :) Will need more time to digest it.

However, in despacing English texts and CSV, Zach's variant is still faster.

Thank you! :)