[gravypod]

For anyone who hasn't written a JIT I'd recommend writing a Brainfuck runtime one day. It's a tractable and strait forward project that will teach you how to do all of this. Start with implementing a direct interpreter and think of ways to make it faster.

[userbinator]

Studying this amazing work of art is also recommended: https://news.ycombinator.com/item?id=8746054