3 ms·
Did you know about HAKMEM 169? I guess it was/is not widely known since many people mention lookup tables as the only fast alternative to the popcnt instruction
by solarexplorer 5y ago
Did you know about HAKMEM 169? I guess it was/is not widely known since many people mention lookup tables as the only fast alternative to the popcnt instruction.
http://www.hakmem.org/#item169 http://www.hakmem.org/#item169
- 4gotunameagain 5y agoThat's interesting, thanks. It seems that look up tables are still faster when memory allows it though (http://www.dalkescientific.com/writings/diary/archive/2008/07/03/hakmem_and_other_popcounts.html http://www.dalkescientific.com/writings/diary/archive/2008/0...)