How to implement continuations?

Question

I\'m working on a Scheme interpreter written in C. Currently it uses the C runtime stack as its own stack, which is presenting a minor problem with implementing continuation

Answer 1

If you are starting from scratch, you really should look in to Continuation Passing Style (CPS) transformation.

Good sources include "LISP in small pieces" and Marc Feeley's Scheme in 90 minutes presentation.