so, we executed a small program that inc the acc a few times (well,
really just called A9 07 A9 08, etc lol. Anyway, that worked. We created
an IRQ to "kill" the running program, which really just resets the CPU
by calling _CPU.init(). We have a long, long, way to go for this
assignment to be completed however -> I feel very good at this moment.
To come over the next few commits: add reset of inst set, comments, and
some error catching. That should clean up the most difficult part of the
assingment. Also need to find places to modularize some of the code ..
if and when I can.