3 ms·

There is the case of LZCNT and BSR. On processors that do not support the former, LZCNT is interpreted as (REP) BSR, but the instructions have different behavio

by pbsd 8y ago

There is the case of LZCNT and BSR. On processors that do not support the former, LZCNT is interpreted as (REP) BSR, but the instructions have different behavior that could result in silent failures.