> I'm fairly certain the instruction set no longer maps to hardware in most cases, rather more analogous to function calls in typical software applications. Ye

> I'm fairly certain the instruction set no longer maps to hardware in most cases, rather more analogous to function calls in typical software applications. Yes, I believe this is called micro operations and have been around for a while now: https://en.wikipedia.org/wiki/Intel_microcode#P6_and_later_micro-operations https://en.wikipedia.org/wiki/Intel_microcode#P6_and_later_m...