This is my first post.
Anyways, I found a Gameboy emulator for the TI-84 Plus CE graphing calculator. It features save states, turbo mode, pretty much all the emulator essentials.
Emulator Page: https://calc84maniac.github.io/tiboyce/ (https://calc84maniac.github.io/tiboyce/)
Emulator Releases: https://calc84maniac.github.io/tiboyce/category/releases.html (https://calc84maniac.github.io/tiboyce/category/releases.html)
ROM Converter: https://calc84maniac.github.io/tiboyce/converter/ (https://calc84maniac.github.io/tiboyce/converter/)
Save Converter: https://calc84maniac.github.io/tiboyce/saveconverter/ (https://calc84maniac.github.io/tiboyce/saveconverter/)
Hopefully you find it useful!