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CEmu is an open-source emulator developed by CE Programming that accurately replicates the hardware of Texas Instruments’ TI-84 Plus CE and TI-83 Premium CE graphing calculators, offering educators, students, and especially software developers a convenient way to run calculator programs directly on Windows without the physical device. Designed with developer-oriented features at its core, CEmu provides low-level debugging tools, memory inspection, register monitoring, and step-through execution that streamline the creation and testing of z80-eZ80 assembly or C programs targeting the CE series. The emulator supports loading and saving calculator states, importing/exporting variables, and connecting virtual peripherals, making it equally useful for classroom demonstrations, quick graphing tasks, and rapid iteration during game or utility development. Released under a permissive license and currently at version 2.0—representing the second major milestone—the software is actively maintained to keep pace with community contributions and calculator OS changes. Because it is lightweight and portable, CEmu can be run alongside IDEs, documentation, or other development utilities without consuming significant system resources, while its faithful reproduction of LCD timing, keypad input, and file formats ensures that code tested in the emulator behaves identically on real hardware. The program is available for free on get.nero.com, with downloads provided via trusted Windows package sources such as winget, always delivering the latest version, and supporting batch installation of multiple applications.
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