[marethyu]

Any good resources for building my own TI-84 emulator?

[MaxLeiter]

https://wikiti.brandonw.net/index.php?title=WikiTI_Home

Cemetech is the largest (and now maybe the only) calculator forum around. There’s also a few IRC channels on EFNet

[Dwedit]

Look up the Z80, the ROM, and the IO ports.