3 ms·
Basically lzcnt or leading zero count on x86: https://www.felixcloutier.com/x86/lzcnt https://www.felixcloutier.com/x86/lzcnt
by muricula 5y ago
Basically lzcnt or leading zero count on x86:
https://www.felixcloutier.com/x86/lzcnt https://www.felixcloutier.com/x86/lzcnt
- ac42 5y ago> It should be noted that on processors that do not support LZCNT, the instruction byte encoding is executed as BSR. This. Boggles.
- bombcar 5y agohttps://stackoverflow.com/a/43443701 https://stackoverflow.com/a/43443701 - interesting - it seems to be a side effect of changing meaning of an instruction.