Cesium
Cesium is a shell for the TI-84 Plus CE / TI-83 Premium CE calculators.
Cesium is installed by running the CESIUM program.
This creates an application that can be accessed via the apps button.
The application cannot be transferred to other calculators, however the
installer can be used instead.
A video showing off various features is available here.
Navigation
Cesium supports alpha search for programs. Use any key with the green text above it to immediately switch to the programs starting with the corresponding letter.
| Combination | Action |
|---|---|
2nd / enter |
Run, select |
alpha |
Modify variable settings |
zoom |
Edit BASIC program |
y= |
Create new BASIC program |
graph |
Rename program / appvar |
mode |
Enter settings menu |
arrow keys |
Move places |
green letters |
Alpha search for program |
Shortcuts
Shortcuts are available from outside the Cesium application.
| Combination | Action |
|---|---|
on + prgm |
Launch Cesium Application |
on + stat |
Power down with password on wake (No Default Password) |
on + graph |
Open label jumper in TI-Basic Editor |
on + 8 |
Backup RAM from TI-OS |
on + 5 |
Remove latest RAM backup |
on + 2 |
Restore RAM from latest backup |
on + sto-> |
Activate dark mode (inverted colors) |
on + ln |
Activate normal mode (uninverted colors) |
The RAM backup is performed by copying RAM contents to flash memory, so if you are concerned about flash wear, please moderate usage.
USB Support
Cesium has support for launching and transfering files on FAT32 formatted drive. Future additions may be added depending on reported usage and feature requests in the issues board on GitHub.
To transfer a variable from the drive to the calculator, use the prgm button.
Running a program from the drive directly may not work -- and may crash your
calculator if the program does any of the following:
- The program requires subprograms and/or AppVars in order to run. You must transfer all subprograms/AppVars to the calculator.
- The program uses an outdated compression mode for assembly and C applications. There is no way around this other than updating the application or transfering the program to the calculator.
- The program modifies itself at runtime. This only applies to rare assembly and C applications, and usually will never be encountered. Transfer the application to the calculator.
To avoid crashes it is recommended to simply transfer the file with the prgm
button instead.
Uninstalling
To uninstall Cesium in the event a new version is warranted, press
2nd + + + 2 + 1 and delete the Cesium application and AppVar.
You can also delete the Cesium application from within Cesium.
Building
Clone with the following:
git clone https://github.com/mateoconlechuga/cesium.git
Download fasmg, available near the bottom of this page. Place fasmg in the project root or add it to the global path.
Build with the command:
make -j
Bug Reports and Feature Requests
Make a bug report here.
Source code is available here.
If you encounter a bug, no matter how small, please report it.
Language Translations
If you would like to add support for another language, feel free to make a PR.
French: Created by Adrien "Adriweb" Bertrand
Dutch: Created by Privacy_Dragon
Credits
© 2015 - 2022 Matt "MateoConLechuga" Waltz
Licensed under BSD 3 Clause.