Not sure if anyone is interested but Sargon's source (Z80 Assembly) is available at:
http://www.madscientistroom.org/chm/Sargon.html
I have this book but can't remember where I hide it.
May be one day I'll resurrect this oldie Need to remember how to program Z80 first, so long ago. Good thing that Intel core is similar to the Z80. Why? Search the web or ask around for the answer.
Andrew.
Great stuff Andrew!!!
Thx!