I think the title is very misleading. This is not a virtual machine but an interpreter for a made up assembly language. There is nothing wrong with that and I am sure a beginner would find it very useful. But reading the title I was expecting something quite different.
> A process VM, sometimes called an application virtual machine, or Managed Runtime Environment (MRE), runs as a normal application inside a host OS and supports a single process. ... Process VMs are implemented using an interpreter; performance comparable to compiled programming languages is achieved by the use of just-in-time compilation.
> Parrot is a register-based process virtual machine designed to run dynamic languages efficiently. It is possible to compile Parrot assembly language and PIR (an intermediate language) to Parrot bytecode and execute it.
(I quoted that one over Java and Python virtual machines because it uses the phase "assembly language" in the context of the VM.)
