Download CEmu Emulator

CEmu is a free, open-source emulator for the Texas Instruments TI-84 Plus CE and TI-83 Premium CE graphing calculators. It faithfully replicates the hardware of these calculators, allowing students and developers to run calculator programs, games, and assembly code directly on their PC or Mac without needing the physical device.

CEmu is widely used by students for testing TI-BASIC and assembly programs, and by developers who create software for the TI-84 Plus CE platform. Its accurate hardware emulation includes the eZ80 CPU, LCD display, keypad, and USB connectivity.

The emulator supports ROM dumping from a real calculator, ROM file loading, and step-by-step debugging tools that make it invaluable for CE assembly development. Skins and display scaling options allow you to replicate the look of the physical calculator on screen.

Key Features

• Accurate emulation of the TI-84 Plus CE and TI-83 Premium CE
• Supports TI-BASIC, C, and eZ80 assembly programs
• Built-in debugger with breakpoints and memory inspection
• ROM loading and ROM dumping from a connected calculator
• Customizable calculator skins and display scaling
• Fast frame-skipping and speed control for quicker testing
• Available for Windows, macOS, and Linux

How to Install

1. Click the download button to get the CEmu installer for your platform.
2. Run the installer or extract the portable archive to a folder of your choice.
3. Launch CEmu and load a ROM file obtained from your TI-84 Plus CE calculator.
4. Use the keypad on screen or your keyboard to interact with the emulated calculator.
5. Transfer programs via the built-in file transfer tool and test them using the debugger.