"Introduction to Z80 Mini Course"
By Larry Simioni
1982.

The custom chips in the Arcade are some of the few mass produced, and therefore 
low cost, devices available to the consumer for animation and graphics.  Since 
very little has been written about the "machine" aspects of these chips, it is 
my objective to provide some information on a few facets of their operation.  
Hopefully this will dispel some of the mystery regarding the software 
techniques necessary to take advantage of some of their capabilities.

Though this manual is meant to be more or less a beginners guide to machine 
programming with the Bally, it is helpful to have somewhat of an understanding 
of a few programming techniques with the Bally Basic language.  Also good 
adjuncts to this book would be one of the many paperbacks on the Z-80, and the 
"Z-80 Assembly Language Programming Manual," which is published by Zilog.

As you read and do the experiments refer to the Z-80 code listing at the end of 
this book (pgs. 43-45).   Keep a notebook.  If you fully understand everything 
that is covered, you will be able to do many things that are impossible with 
Basic alone.  You should also end up with a good understanding of how machine 
language routines can be used with Basic to increase speed, simplify functions, 
and save bytes.  Many ideas, examples, and analogies will be made in reference 
to Bally Basic.

I've tried to construct this book as something which I wish I had when I 
started programming in machine language.  Hopefully this information will prove 
to be of benefit to those venturing into machine programming.  I hope to 
continue where this leaves off in Course Two which will cover uses of RST 
instructions, and onboard ROM routines.  If you have any comments, or 
information that you would like to share, I would appreciate hearing from you.  
I will be consolidating and organizing all notes and information, to be 
presented as this is in the future.

Also I would like to officially thank all the computer nuts, and mentor 
friends, for without whom, this book and my knowledge would not exist.  Time 
warp thanx to Thinkradite and Itragen.