You didn’t miss anything. This code is total crap. It should use paddb, instead of unpacking into dwords. Also the link is from 2014, so AVX2 could do that twi

You didn’t miss anything. This code is total crap. It should use paddb, instead of unpacking into dwords. Also the link is from 2014, so AVX2 could do that twice as fast. Bottom line: code could be at least 8 times faster. Kids, don’t learn from this.