Glossary
Advanced Bit Manipulation
AMD implemented on some processors (eg, bulldozers, Piledrive and Jaguar) the instruction set Advanced Bit Manipulation (ABM). This includes the so-called population count (at Intel in SSE4.2 included) and the Leading zeros count (at Intel, part of the BMI 1). Whether you need this extension can be generalized difficult, because it is here to very specific commands that never gets a user under normal circumstances to face.
