Currently the RVM lacks an interpreter although one was implemented in Manchester by Ian Rogers and Anastasios Katsigiannis. This RFE is to track progress on getting the interpreter into the main code base where it would be an interesting AOS alternative (0 compilation overhead vs slow execution per bytecode) and platform for doing quick analysis of JVM behaviour (hacking an interpreter is easier than hacking code generated by a compiler).
The interpreter modified version of the RVM is available at:
http://www.cs.man.ac.uk/~irogers/rvm_interpreter.zip