PVM

paweljw's virtual machine.

What?

This project includes:

• a runtime for a stack-based VM, sporting a whopping 21 opcodes,
• a compiler for a super-rudimentary (meaning, almost opcode-like) language to a binary format understood by runtime (but at least it has labels now),
• a couple of examples of using the language,
• absolutely no procedures (though they can be implemented after a fashion) or global memory except for sixteen registers.

Usage

$ make
$ make examples
$ bin/runtime hello_world.pvm
$ bin/runtime fizzbuzz.pvm

Compiling a script:

$ bin/compiler script.pvs output.pvm

Debugging

TODO

• Question my Friday evening pastimes.
• Implement a better language on top of the VM (it would be so nice if I didn't have to push strings backwards).
• A header in the binary file, specifying e.g. entrypoint (currently assumed to be instruction 0).
• Global memory (but aren't registers fun?)
• Procedure calls (yeah, right).