Lisp bytecode compiler

Am I missing any special forms?
lambda if setq let quote

I know let isn't really needed because it can be implemented in terms of lambda, but recognizing ((lambda ...) ...) sounds more confusing than just using let.

As long as CPUs only have a single data buss where instructions and memory locations can only be accessed on at a time, then I dont see how there could be any advantage in interpreting high level language instructions will achieve anything