I want to colaborate, but I'm not good enough (yet)

Ok, I will take a look into Chip-8. You said that about tutorials because the own effort is the really way of learning, isn't it? I'll try then.

I'll also try to contribute to HLE, but as I said maybe I have not enough experience (I know C++, but not in an advanced level).

Btw, VM = "Virtual Machine" or "Virtual Memory" ? Sorry for the stupid question.

Thank you for the advices!