In my post Really fast bitset decoding for “average” densities, I reported on our work accelerating the decoding of bitsets. E.g., given a 64-bit register, you want to find the location of every 1-bit. So given 0b110011, you would want to get 0, 1, 4, 5. We want to do this operation with many such … Continue reading Bitset decoding on Apple’s A12