RISC-V delegates pcnt to the “B” Standard Extension for Bit Manipulation, and the status of B version 0.90 is Open, meaning it hasn't been finalized. So realist

RISC-V delegates pcnt to the “B” Standard Extension for Bit Manipulation, and the status of B version 0.90 is Open, meaning it hasn't been finalized. So realistically, RISC-V doesn't have the pcnt instruction. Versions supporting B will have it but that will be at some point in the future.