bFraley / avtm

abstact virtual tape machine

avtm/tapebox

avtm stands for 'abstract virtual tape machine'

tapebox implements an abstract machine in Python3.

Wikipedia: abstract machine

Status

There's work to do.

Why

Generally, it's a very interesting exercise in thought, computation, and programming.

How

Fork, clone, or download avtm/tapebox and run main.py, but there is currently not much you can do other than play with the interpretter. It will be much more interesting once you can write a tapebox program source file and have the machine execute and run it!

Instruction Set

Instruction command keywords in the Core class shown below.

Functionality for instructions are defined in core.py as methods of Core. The instruction set methods are named using the pattern of call_UPPERCASE, like call_WRITE, or call_READ.

For example, when a program (tape) parses a .w keyword token, it is mapped to the call_WRITE method.

class Core():
    def __init__(self):
        self.instructions = ['+','-','.w','.r','.n','.s','.d','.m','.c','.p']
        self.opchars = ['+','-','*','/']
        self.TAPE = Tape()