2012/9/16 haael <ha...@interia.pl>: > > OK, I read almost all the documentation I found on the web page. But I still > don't understand few things. > > There are 3 layers in the whole picture. The user application written in > Python, the Python interpreter written in RPython and the RPython > interpreter itself. > > 1. Where do flow graphs are generated from? Is it the representation of the > user application, or the interpreter?
The interpreter. > > 2. Where does the JIT fit here? I read it traces the execution of the > iterpreter and indirectly the user application. Does it operate on the flow > graphs or something else? It operates on a serialized version of the flowgraphs. > > 3. Which component actually does the JIT? Is it just a tweak on the code > generator or are the flow graphs generated differently? The flow graphs are taken from the translator and modified by the JIT generator. > > 4. Is there some documentation how to write a backend (code generator)? The > source code is poorly documented and the topic is not mentioned on the web > page. What exactly do I need to implement to have a backend? You mean a JIT backend or a RPython backend? You might find this useful: http://www.aosabook.org/en/pypy.html -- Regards, Benjamin _______________________________________________ pypy-dev mailing list pypy-dev@python.org http://mail.python.org/mailman/listinfo/pypy-dev
