Hello there! Good to see you! If you are looking for
some tools that can help you 'assemble'(making
machine codes from ASSEMBLY codes) or 'disassemble'
(making ASSEMBLY codes from machine codes) for the
"Project Experiment"(or "Project Jikken", whatever you
call it), then you are at the right place. Here you
will find:

    assemble.pl      coverts ASSEMBLY codes to machine 
                     codes
    disaasemble.c    do the reverse job of the above 
                     program.

To untar and test the programs:

    % cat cputools.tar.gz | gunzip | tar xfv -
    % make
    % ./disassemble
    % ./assemble.pl < filename

Wish you good luck with your "Project Experiment!"
Any comments? Please feel free to pass:

    jchakma@yahoo.com
    www.geocities.com/~jchakma

# Don't have to read below
Why I wrote this? I was bored coverting all those assembly codes
to machine codes or vice-versa in 'bare hands' --- most probably 
you feel the same! Feel free to 'hack', 'kack', 'back', 'grep'
this program as you find appropriate. Most probably, you will
find few other resources on the above home-page if 'geocities'
keeps giving the service........bye!
