Python's Pickle format is similar. It interprets opcodes using a stack-based "pickle" machine. (I have started an Haskell implementation of it https://github.co

Python's Pickle format is similar. It interprets opcodes using a stack-based "pickle" machine. (I have started an Haskell implementation of it https://github.com/noteed/python-pickle https://github.com/noteed/python-pickle)