Category "bit-manipulation"

What are assembly instructions like PEXT actually used for?

I watched a youtube video on the Top 10 Craziest Assembly Language Instructions and some of these instructions have no obvious application to me. What's the poi

Finding consecutive bit string of 1 or 0

How to find the length of the longest consecutive bit string(either 1 or 0)? 00000000 11110000 00000000 00000000 -> If it is 0 then length will be 20 111