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Calculator Community => Other Calc-Related Projects and Ideas => TI-Nspire => Topic started by: Matrefeytontias on November 16, 2014, 04:26:44 pm

Title: z80e for Nspire
Post by: Matrefeytontias on November 16, 2014, 04:26:44 pm

Hey guys,

the KnightOS team having started (more than started actually) working on z80e, a z80 emulator written in C, and after me porting it to Windows (it uses SDL), I thought about porting it to the TI-Nspire. And guess what ? I did :w00t:

Be warned : the emulator itself not being finished, the Nspire version isn't either. Of course, I plan to mirror progress that's being made on the PC version to the Nspire version.

So far it doesn't actually run the TI-OS, but it does run the attached KnightOS ROM. You'll still see that some things aren't right, but that's really the emulator's fault. Also, it'll work both with Ndless 3.1 and Ndless 3.6, the PRG version being for Ndless 3.1.
I don't release the code yet because I still have a huuuuuge lot of clean-up to do, due to the Nspire not using many features that the PC version uses (like the CLI debugger).

But yeah, do check out the attachements. Please let me know about any bug that might crash or freeze your calc, and in what circumstances. Those may be known emulation problems, or not.

Share comments :)

EDIT : oops, forgot to put control scheme.

So yeah, control scheme so far :

TI-84+SE key	TI-Nspire key
F1	A
F2	B
F3	C
F4	D
F5	E
Down, left, right, up	Down, left, right, up (click on touchpad calcs)
2nd	Ctrl
Alpha	Shift
Enter	Enter
Clear	Menu
Mode	Esc
Del	Del
Numkeys	Same numkeys
ON	Tab

You can exit the emulator at any time by pressing Q. If it doesn't work, then that's pretty much that the emulator itself is stuck, and not the emulation.

EDIT 2 : screenshot ! How could I have forgotten that.

(https://cdn.mediacru.sh/wcO4HpkvG0AL.png)

EDIT 3 : dayum, forgot to compile with -Ofast. Attachment updated !

Title: Re: z80e for Nspire
Post by: aeTIos on November 16, 2014, 04:26:58 pm

FIRST

Woah, impressive O.O

Just tried this out and it's pretty cool. It's not that fast, though :\

Title: Re: z80e for Nspire
Post by: Keoni29 on November 16, 2014, 04:27:16 pm

SecONd!
Edit: first edit!

Title: Re: z80e for Nspire
Post by: Matrefeytontias on November 16, 2014, 04:47:10 pm

Yeah, speed is a problem. As I said, the emulator is far from finished. It might even crash without a warning.

Progress on this version will only happen when progress on the PC version happens. I want to keep both versions in phase.

Title: Re: z80e for Nspire
Post by: Ivoah on November 16, 2014, 05:23:02 pm

Is this eventually going to be able to emulate TI-OS?

Title: Re: z80e for Nspire
Post by: Matrefeytontias on November 16, 2014, 05:26:56 pm

It's planned to. At the end, it's planned to be a 100% accurate emulator, not only for KnightOS.

Title: Re: z80e for Nspire
Post by: DrDnar on November 16, 2014, 05:36:18 pm

You should load TI-Boy up, port the emulator to emscripten, and run the emulator in a Bochs so that you can run an emulated GameBoy in an emulated TI-83+ in an emulated in Nspire in an cross-compiled Javascript in an emulated PC.

Title: Re: z80e for Nspire
Post by: bb010g on November 16, 2014, 05:43:36 pm

Reminds me of the old TI-84 emulator (http://www.omnimaga.org/news/z80-emulation-arrives-on-the-ti-nspire-cx/). How's this one different? Could the old one not run KnightOS?

Title: Re: z80e for Nspire
Post by: Matrefeytontias on November 16, 2014, 05:45:11 pm

So far, the difference is that this one is actually being worked on, since the one you posted is dead. For now, it's less feature-fledged though, but that will come with time.

Title: Re: z80e for Nspire
Post by: Streetwalrus on November 16, 2014, 07:10:35 pm

Quote from: DrDnar on November 16, 2014, 05:36:18 pm

You should load TI-Boy up, port the emulator to emscripten, and run the emulator in a Bochs so that you can run an emulated GameBoy in an emulated TI-83+ in an emulated in Nspire in an cross-compiled Javascript in an emulated PC.

Fwiw, z80e does work with emscripten. Emuception isn't happening anytime soon though. :P

Title: Re: z80e for Nspire
Post by: aeTIos on November 16, 2014, 10:17:57 pm

Yeah it's sad to have Jacobly gone, calcemu could have been fantastic :/

Title: Re: z80e for Nspire
Post by: Sorunome on November 17, 2014, 08:55:28 am

Don't forget to emulate the undocumented opcodes :P

Title: Re: z80e for Nspire
Post by: aeTIos on November 17, 2014, 09:16:45 am

They are being emulated. z80e aims to be 100% compatible with everything.

Title: Re: z80e for Nspire
Post by: Streetwalrus on November 17, 2014, 02:40:28 pm

Iirc the CPU core is already complete but I might be wrong.

Title: Re: z80e for Nspire
Post by: Ivoah on October 30, 2015, 08:04:17 pm

Do you have any plans to push your changes back to the z80e repo?

Title: Re: z80e for Nspire
Post by: Matrefeytontias on November 05, 2015, 12:36:39 pm

Since z80e can run the TI-OS now, I plan to including actual Nspire support in the already-existing z80e codebase. I don't know how hard it will be, I didn't give it much thought yet. Also, this might or might not happen before a long time, since I am extremely busy with final exams and contests coming up in a few months.

Title: Re: z80e for Nspire
Post by: CleanUser2020 on December 02, 2015, 05:23:42 am

.

Title: Re: z80e for Nspire
Post by: CleanUser2020 on December 02, 2015, 05:51:30 am

.

Title: Re: z80e for Nspire
Post by: Ivoah on December 02, 2015, 07:40:00 am

Quote from: Jaroslav Nassedkin on December 02, 2015, 05:23:42 am

i replaced the rom from the z80e to a real ti 84+se rom it had only a green screen then i quit it and launched it back and it crashed (3.9)

The current version of z80e for the Nspire doesn't run TI-OS. The Nspire version is way behind the latest: https://github.com/KnightOS/z80e