TilEm is an emulator and debugger for Texas Instruments Z80-based graphing calculators.
It can emulate any of the following calculator models:

 

• TI-73 / TI-73 Explorer
• TI-76.fr
• TI-81
• TI-82
• TI-82 STATS / TI-82 STATS.fr
• TI-83
• TI-83 Plus / TI-83 Plus Silver Edition / TI-83 Plus.fr
• TI-84 Plus / TI-84 Plus Silver Edition / TI-84 pocket.fr
• TI-85
• TI-86

 

TilEm fully supports all known versions of the above calculators (as of 2012), and attempts to reproduce the behavior of the original calculator hardware as faithfully as possible.