A CE Emulator

Developer-oriented emulator of the eZ80-based TI-84 Plus CE / TI-83 Premium CE calculators
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What is CEmu?

CEmu is a third-party TI-84 Plus CE / TI-83 Premium CE calculator emulator, focused on developer features. The core is programmed in C and the GUI in C++ with Qt, for performance and portability reasons. CEmu works natively on Windows, macOS, and Linux.

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For Students and Educators

We provide awesome features for students and educators to take advantage of!

  • Easy setup - get running by doing a one-time only connection of your calculator!
  • Accurate and fast emulation (and customize the speed + toggle throttling)
  • Resizable calculator screen
  • "Always-on-top" window option
  • Screen capture (PNG, GIF)
  • Screen recording (animated GIF)
  • File sending/receiving (partial, WIP)
  • Multiple keybinding presets
  • CE skins (colors like the real devices)

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For Developers

We also provide powerful debugging and introspection features for CE developers as well!

  • Custom display refresh rate
  • Custom emulation speed/throttling
  • Code stepping, jumping...
  • R/W/X breakpoints
  • eZ80 disassembler (with equates support)
  • Profiler (WIP-branch)
  • Port monitor/editor
  • Timers simple monitor/editor
  • Memory viewer/editor
  • CPU state/registers viewer/editor
  • LCD state/parameters viewer/editor
  • Memory visualizer (as fully customizable virtual LCDs)
  • Stack viewer
  • OP1-6 viewer
  • VAT viewer
  • Variable list with preview and program launcher
  • Misc. emulation (backlight, battery...)
  • "Autotester" (automated unit testing, light scripting)