What is this?

A DCPU_16 implementation in Python. See the spec

But what's the goal of this? There's another one already!

Well, what's wrong with taking another stab at it? Besides, I personnally felt it was too C-ish, and not pythonic enough (whatever that means). I wanted to revive whatever low-level (admittedly limited) ASM knowledge I had (from 6800/68000) and sharpen my Python-fu. The spirit of the thing is to be educative for everyone (including me).

How do I use this?

It's meant to be used interactively via the Python REPL as well as programmatically. I might implement a specific ASM REPL at some point.

example:

from dcpu_16 import CPU
c = CPU(debug=True)
c.load_m()               # loads demo program
c.step()                 # step by one instruction
c.pc = 0xA               # move to 'loopy thing'
c.step()
c.reset()                # reset cpu
c.clear()                # clear memory