That's interesting: would you happen to have any reference implementing/describing such a parser, by any chance? In the crypto world, this is called "bitslicin

That's interesting: would you happen to have any reference implementing/describing such a parser, by any chance? In the crypto world, this is called "bitslicing": https://www.bearssl.org/constanttime.html#bitslicing https://www.bearssl.org/constanttime.html#bitslicing