On the TI-92 Plus calculator when you type `exec()` it crashes. All your data is gone. The doc only says: "exec() is used to execute 68000 assembly." BUT HOW? For so many years I did not find a single example on how to use this command, until today: `exec("4e750000")` This example does absolutely nothing, but I also doesn't crash the calculator! I found this site, explaining how to craft valid exec() commands:

Handheld TI graphing calculators: TI-92, TI-89, Voyage 200 - Numericana

Finally I find peace.