Use B::Generate to change the nextstate ops into dbstate ops. Here are a few links to get you started: an article by Simon Cozen, author of B::Generate as published on perl.com that shows how to rewrite programs using B::Generate. Perl Assembly - structure of the bytecode, common ops and idioms. If you want to enable debugging completely after the fact from a module, it is possible, but it is tricky, and because of that you might want to consider changing your requirements - but again, it can be done.

-scott