toolchain VS Ndless

Download: https://github.com/CE-Programming/toolchain/releases/latest

if you're talking about the CE series of calculators, then people have been, and still are, creating lots of programs using the community toolchain, and despite the fact that the architecture is eZ80, a clang-based compiler has been developed (llvm backend) and so C and C++ is available.

If you're talking about the TI-84 Plus CE, you can create powerful programs in C (and some C++) with the community toolchain.

The C toolchain can help you with that: https://github.com/CE-Programming/toolchain/releases/tag/v10.2 You may need to get one of the USB branches.

I'm working on a library called srldrvce for using USB serial adapters with the CE. Unfortunately, it's not released yet, but you can build it from source from the srldrvce-rewrite branch of the C toolchain. In theory, there are supposed to be nightly builds as well, but we changed our CI system recently and I can't find them at the moment. You might also find my terminal emulator for the CE helpful.

If you're wondering why they put an ARM microcontroller in there to run Python, the answer is that the TI-84 Plus CE uses an eZ80 CPU core because it made transitioning their existing TI-84 Plus code a lot easier. The downside is that they don't have access to a C compiler than can compile Python (but we've written one), so they hacked in a microcontroller to run MicroPython.

The TI-84 Plus CE doesn't have anywhere near the library that the TI-83/84 Plus has, but our community SDK supports all the features of C and C++ that clang does (no STL support). Development has largely shifted to the CE. As someone who's written a fair amount of Z80 assembly, I can tell you that C is amazing.

Check out the community toolchain and its documentation.

If you want to learn assembly you can either do it standalone using this tutorial or as part of the C toolchain.

It seems you can write C/C++ programs for the Ti-84 with this. (In theory you can write / run C/C++ programs on anything which can run Turing-complete programming language.)

I updated my calculator before I learned about Ndless and, from what I've read, there's no way to do a rollback. What are my options? Is there some program that can rewrite the OS or something? Is there a workaround?

The CEs are a good for numerical calculations and have a pretty active developer base which makes them great models to learn to program with, if you intend to use or want good programming functionality, these are the best models for it imho. The Nspires, especially models with CAS and that support Ndless, are good too (I've barely used mine ngl so idk what to put here).

That said, the hardware in modern calculators, especially CAS related ones, is quite powerful. Various hobbyists have actually developed tools to deploy relatively heavy Linux distros onto TI Nspire calculators. Practically speaking, they're pretty unwieldy and slow, but it is possible.

ndless

if you're talking about the TI-Nspire series, then yes through the toolchain/SDK of Ndless, the unofficial/fought-by-TI "jailbreak" (see here). It's a typical arm toolchain, so C/C++/ASM is supported (and more with enough work), and lots of things have been created and ported along the years.

As another person already said, there no builtin way to do that since you have the non-CAS version. However you can use third party CAS engines, like KhiCAS, if you're able to install Ndless (if you don't have a recent OS version it should be doable - check https://ndless.me)

I’m planning on installing Ndless (http://ndless.me) onto my CAS to play Minecraft (yes, I know… it’s dumb) and do fun little projects like programming a game on the CAS.

Emulator most likely require ndless to be installed (nspire jailbreak), sadly it’s version dependent, which is why I don’t advice anyone to upgrade to the newest os. Which that said you could explore the ndless apps (which has seemingly just shut down) which offer a mini Pokémon for example - this is not (at least to my knowledge) the „OG game“, but people definitely tried there best to make it good

I can recommend ndless to you, since it opens quite a lot of possibilities, like cas calculations via KHICAS, emulation support and neat other stuff that could be potentially useful (like a fake light), remember to NOT upgrade to the newest os, but to one on the list shown on the ndless website, which can also be found here.

-> get ndless from ndless.me -> go to ndless-apps.org -> look for PokeMini and install