[yesenadam]

I have a similar history. What amazes me is that I used to write in assembly language for the Z80, plugging in the hex machine code numbers inline into BASIC and Turbo Pascal programs, and I never saw an assembly manual, instruction list or book, and never had an assembler! Somehow picked up instructions one at a time from magazine columns, wrote assembly on paper and hand-translated into machine code. It's such a different world now, being able to order online, if not download instantly, just about everything. I came across Rodney Zaks' Programming the Z80 about 10 years ago in a second hand shop and it was like seeing the Holy Grail—a legendary book I never imagined I'd ever see a copy of, much less own.