Linux Kernel Module Cheat

Fused multiply add:

Bibliography:

Particularly important numerical analysis instruction, that is used in particular for;

FMA is so important that IEEE 754 specifies it with single precision drop compared to a separate add and multiply!

Micro-op fun: https://stackoverflow.com/questions/28630864/how-is-fma-implemented

Historically, FMA instructions have been added relatively late to instruction sets.