I am a 17-year-old Z80 programmer who owns one 84+ because it was mandatory at my (Belgian) school. I started learning Z80 half a year before I even got the calculator thanks to the TI Flash Debugger and the "Learn TI-83 Plus Assembly In 28 Days" tutorial by Sean McLaughlin. I am currently active on Cemetech and you can often find me on its IRC channel.
I have noticed a lot of out-of-date information on this website (mainly because of new hardware revisions, probably) and asked DrDnar to change them when he revealed that he could edit this. He then told me to create my own account so here I am. I will try to update this wiki using new data I get from my own calculator.