I've just released PolyPatch84 little brother: PolyPatch84>83.

It includes all fixes from PolyPatch84, plus an additional modification which makes the TI-84+ OS installable and bootable on TI-83+/83+SE calculators.

Special thanks to Brandon Wilson, who made this possible with OS 2.53MP.

His mod has been ported to other OSes: 2.30, 2.40, 2.41, 2.43, 2.55MP.


Yes, you can now install and run all those TI-84+ OSes on a TI-83+/83+SE.


Note, I'm getting a bug with my basic TI-83+:
The calculator often can't be turned on by pressing the On key. You need to press Clear+On, which implies a reset and is very annoying.
But Brandon didn't mention such a bug on his TI-83+SE. It might come from the hardware revision, or might be specific to the basic TI-83+.

The TI-84+ OS is bigger than the TI-83+OS. On basic TI-83+, the available archive space is 128Kb instead of 160Kb.


Let's consider OSes 2.30-2.43:
Compared the the last TI-83+ OS, there is nothing new (except USB & clock support which are useless on a TI-83+).
So installing them is totally useless. You'll get nothing more, and might run into problems.


Let's consider OSes 2.53-2.55:
There is something new: MathPrint. Those ones are interesting.
But they want 48Kb or RAM. So there are instable on basic TI-83+ (RAM chip is only 32Kb).
They'll only work on TI-83+SE (RAM chips is 128Kb).

Strangely it worked on Brandon's TI-83+SE, but not on mine. My TI-83+SE doesn't want to boot any of those OSes, even with Clear+On. Might come from the hardare revision, meaning the fix is currently incomplete.


If you can help by testing, especially on TI-83+SE, it would be great. Please report:
- calculator model
- datestamp
- OS version
- bootable ?
- stable ?
- bugs / problems if there are some


Here's a picture:


And here's the link:
http://ti.bank.free.fr/index.php?mod=archives&ac=voir&id=2129


Have fun.
And if you try... make a backup!!!

Let's identify the most interesting calculators:


1st row:
* TI-83+SE
* TI-Nspire ClickPad
* TI-92
* TI-89 Titanium

2nd row:
* TI-85
* TI-82
* TI-80
* TI-83
* TI-86
* TI-73
* TI-83
* TI-83+

3rd row:
no comment


Is that ok ?

While it is only a temporary trick for testing Ndless 2.0 beta, it's not a problem for me.
I can still use Ndless 1.7 or an older Ndless 2.0 beta.

But the final release should not incude such a trick, even if we can't support the touchpad arrows. Just let the programmer choose.

You can put and use the beta. It works

By the way, thank you ThePenguin77 for telling me what was incorrect.
I'll update/edit as soon as possible

Thanks again.


Some note about the 1st post.

Brandon's PTT patch doesn't work fully with OS 2.55MP. I does disable the 8+5+ON/8+2+ON resets, but not the access to the PTT mode.
The fix was adapted for OS 2.55MP in PolyPatch84.


As you can see, severall ports are still missing. It's because the problematic code was different on those OSes. Either I could not find it, either I could not patch it.

* Brandon's patch for the "for(" glitch still has to be ported to OSes 2.55MP, 2.53MP, 2.30 and lower. I could find the code, but it was slightly different and I couldn't manage to mod it successfully.

* The fix for the self-test & groups has to be ported to OSes 2.40 and lower. I could not find the code at all.

* The "ERR:Version" fix has to be ported to OSes 2.30 and lower. I could not find the code at all.

* Brandon's fix for the Xlib bug has still to be ported to OS 2.55MP. I could find the code, but the ROM page is completly full! I cannot insert Brandon's additional code...


If anybody wants to help...

Lol, the trailer for the program is ready!
Now we're just missing another little thing: the program itself.
(no offense)

After watching that, more and more people will be waiting for it. 

And for those who prefer the TI-Nspire nonCAS TouchPad :
http://levak.free.fr/ftp/nspire/render_b255_018.jpg

:p

Yes, one day I'll make the CAS TouchPad (^.^)

Great, as usual!

Any news/infos about the touchpad arrows support?
Have you discovered anything?