Omnimaga

Omnimaga => News => Topic started by: DJ Omnimaga on January 11, 2011, 02:27:15 pm

Title: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 02:27:15 pm
TI has released a new version of the TI-84 Plus and TI-84 Plus Silver Edition operating system: OS 2.55MP. Like the previous one (and its TI-Nspire 84 Plus emulator counterpart), this OS defaults to MathPrint mode, which allows you to input math operations in a same fashion as the TI-73 and TI-73 Explorer. However, in 2.53MP (http://ourl.ca/4084), some BASIC games using ASM utilities to invert text to white font on black background, Omnicalc, xLIB and a few others stopped working, and that OS gave assembly programmers a lot of troubles to make their applications cross-compatible between OS 1.19, 2.43 and 2.53MP. There were also reports about bugs causing the calculator to crash or freeze when triggered and MathPrint mode was several times slower than its TI-73 counterpart, causing home screen BASIC games to run up to 4 times slower than normal. In Classic mode, those problems usually went away, but making BASIC games automatically disable MathPrint was a bad idea, because this would cause them to not work on previous OSes.

We do not know what this new version of the TI-84 Plus OS includes. Does it introduces any new feature? Does it fixes bugs or introduces new ones? Is it larger than previous OSes, causing the user to have fewer archive memory on their calculator? Does it silently install an anti-downgrade protection like in TI-Nspire OS 2.1 (http://ourl.ca/6358)? Does this mean a new TI-Nspire OS will come out soon?

The TI community will most likely find out anytime soon.

Link to OS page: http://education.ti.com/educationportal/sites/US/productDetail/us_os_84plus.html

UPDATE: More information about the OS have been found on TI-Nspire Google Group: http://groups.google.com/group/tinspire/browse_thread/thread/cebd5f38bbbe6ec0#

There is also a PDF file (http://groups.google.com/group/tinspire/attach/ccf071aa9f7c935b/TI-84+Plus+OS+Highlights_2_55MP_V4.pdf?part=4&view=1) attached there explaining the new additions to the calculator OS.
Title: Re: OS 2.55MP released
Post by: AngelFish on January 11, 2011, 02:35:48 pm
It's not much different from 2.53, as far as I can tell from a cursory glance. It does include at least two new commands, STATWIZARD ON and STATWIZARD OFF. I can't figure out what the STATWIZARD is though.
/me goes off to check the downgrade protection
Title: Re: OS 2.55MP released
Post by: Happybobjr on January 11, 2011, 02:44:23 pm
I think it may be their attempt at fixing problems that Brandon Wilson's patch fixed.
/me will not download until sure it is safe.
Title: Re: OS 2.55MP released
Post by: JosJuice on January 11, 2011, 02:46:20 pm
(http://i152.photobucket.com/albums/s183/JosJuice/STATWIZARD.gif)
Title: Re: OS 2.55MP released
Post by: AngelFish on January 11, 2011, 02:46:46 pm
The first bug?

(http://img.removedfromgame.com/imgs/STATWIZARD.gif)
Title: Re: OS 2.55MP released
Post by: Happybobjr on January 11, 2011, 02:47:35 pm
^ what else would you expect :P  ^
Title: Re: OS 2.55MP released
Post by: Darl181 on January 11, 2011, 02:51:23 pm
I have it working in wabbit, and it seems the same so far, aside from the statwizard things
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 02:57:03 pm
The first bug?

(http://img.removedfromgame.com/imgs/STATWIZARD.gif)
We luv you, TI.  :love: :love: :w00t:
Title: Re: OS 2.55MP released
Post by: Silver Shadow on January 11, 2011, 03:08:37 pm
I hope they fixed some bugs, rather than just add the StatWizard thingy... x.x
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 03:13:45 pm
Ok! I found more info about the OS: a post on TI-Nspire Google group and an attached PDF file. See first post for the links! Seems like most stuff that got added are wizards.
Title: Re: OS 2.55MP released
Post by: AngelFish on January 11, 2011, 03:16:16 pm
That's a bit of a waste of an OS update, don't cha think?
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 03:18:10 pm
Not surprising, though. I'm glad most ASM stuff still seem to run, though. I wish they spent more time fixing the previous OSes.
Title: Re: OS 2.55MP released
Post by: jnesselr on January 11, 2011, 03:20:06 pm
The first bug?

(http://img.removedfromgame.com/imgs/STATWIZARD.gif)
We luv you, TI.  :love: :love: :w00t:
It's because it's waiting for you to do something.  Anyway, move your cursor up to the top left point, then press enter. Move it down to the bottom-right point and press enter. That should work.

However, Wabbit doesn't like this OS version, though.
Title: Re: OS 2.55MP released
Post by: Builderboy on January 11, 2011, 03:29:02 pm
It seems they are all idiots and didn't fix many or all of the bugs, but instead added new buggy features?  Thank you indeed TI
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 11, 2011, 03:29:52 pm
I just sent it to WabbitEmu. The first thing I noticed is that they expanded the OS onto page $73 (I knew they were out of space). Which means that the $70-$73 sector is now out of bounds to be screwed with. Which in turn, I believe, means that Ti-Boy would corrupt your OS.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 03:31:07 pm
According to JosJuice, inverted matrix bug was fixed, though.

I just sent it to WabbitEmu. The first thing I noticed is that they expanded the OS onto page $73 (I knew they were out of space). Which means that the $70-$73 sector is now out of bounds to be screwed with. Which in turn, I believe, means that Ti-Boy would corrupt your OS.
that sucks x.x

Also, now that we know downgrading is possible, can anyone try to install a 3rd-party OS on their calc, if any is available and stable enough? I wonder if we can still install third-party OSes after installing 2.55MP?
Title: Re: OS 2.55MP released
Post by: AngelFish on January 11, 2011, 03:32:15 pm
According to JosJuice, inverted matrix bug was fixed, though.

[cough]Josjuice doesn't have an OS[/cough]
Title: Re: OS 2.55MP released
Post by: jnesselr on January 11, 2011, 03:33:25 pm
I just sent it to WabbitEmu. The first thing I noticed is that they expanded the OS onto page $73 (I knew they were out of space). Which means that the $70-$73 sector is now out of bounds to be screwed with. Which in turn, I believe, means that Ti-Boy would corrupt your OS.
I wonder if they understand asm over at TI, or they ported Java to it? I'm quite surprised that they are going through so many pages.
Title: Re: OS 2.55MP released
Post by: apcalc on January 11, 2011, 03:34:10 pm
Wasn't expecting this today...

When I first read "OS 2.55MP" released, I thought it would be a joke :P

They must have some hidden motive for releaseing an OS with almost no updates (/me remembers OS 2.1 :(
)...
Title: Re: OS 2.55MP released
Post by: AngelFish on January 11, 2011, 03:35:00 pm
Can anyone else duplicate the Omnicalc RAM clear thing? I can't seem to replicate it in 2.55  ;D
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 03:35:29 pm
On a side note, the PDF I linked to on the first post mentions that the OS on the Nspire is OS 2.56MP. Would this mean a release of OS 2.2 is imminent?
Title: Re: OS 2.55MP released
Post by: apcalc on January 11, 2011, 03:37:09 pm
On a side note, the PDF I linked to on the first post mentions that the OS on the Nspire is OS 2.56MP. Would this mean a release of OS 2.2 is imminent?

I would say most definately.  We have been expecting an OS update for the Nspire in feb/march since the release of OS 2.1 (to coincide with T^3).  Likewise, there is some discussion of OS 2.2 on TI-Bank.
Title: Re: OS 2.55MP released
Post by: AngelFish on January 11, 2011, 03:37:11 pm
Never mind. I managed to RAM clear  :P
Title: Re: OS 2.55MP released
Post by: JosJuice on January 11, 2011, 03:38:23 pm
According to JosJuice, inverted matrix bug was fixed, though.
I didn't say anything about that.
Title: Re: OS 2.55MP released
Post by: critor on January 11, 2011, 03:38:39 pm
I just sent it to WabbitEmu. The first thing I noticed is that they expanded the OS onto page $73 (I knew they were out of space). Which means that the $70-$73 sector is now out of bounds to be screwed with. Which in turn, I believe, means that Ti-Boy would corrupt your OS.

Strangely, 3 of the new written sectors are just full of 0xFF bytes.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 03:40:29 pm
According to JosJuice, inverted matrix bug was fixed, though.
I didn't say anything about that.
Wait nvm that was Qwerty.55. My bad.

Quote
[13:23:09] <Fishbot> They fixed the Matrix inverse bug/
Title: Re: OS 2.55MP released
Post by: jnesselr on January 11, 2011, 03:50:20 pm
Good news is that there is no downgrade protection.  I went from a 2.43 OS to a 2.55 and back. It worked fine.
Title: Re: OS 2.55MP released
Post by: mapar007 on January 11, 2011, 03:51:09 pm
I actually can't afford to waste too much time but I'll try and check this out :D
See what I can come up with, and maybe it's time to update my PTT patch again, sometime. But not now.
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 11, 2011, 03:56:48 pm
Well, the old bugs still remain. I guess only the real "bug" is the fact that mathprint can only be so big. The Omnicalc bugs are technically omnicalc's fault.
Title: Re: OS 2.55MP released
Post by: JosJuice on January 11, 2011, 04:05:22 pm
After installing 2.55MP, the screen was blank (but turned on) for a minute or something before the RAM clear screen appeared. I tried to install WFRNG OS afterwards, but TI-Connect didn't want to send it (it didn't want to send 2.55 at first, either...) I'm going to try sending it again tomorrow (GMT).
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 04:16:38 pm
Good news is that there is no downgrade protection.  I went from a 2.43 OS to a 2.55 and back. It worked fine.
What about WFRNGOS, PongOS and available versions of KOS?
I actually can't afford to waste too much time but I'll try and check this out :D
See what I can come up with, and maybe it's time to update my PTT patch again, sometime. But not now.
Keep in mind the new PTT adds some more features, though. You might want to check for that too.
Title: Re: OS 2.55MP released
Post by: Ashbad on January 11, 2011, 04:19:24 pm
hmm, the easy way to detect downgrade protection is simply by checking if 2.43 is still up for download.  Just in case... I think everyone should keep a copy of 2.43 handy.

If TI REALLY WANTS TO SCREW US, Then downgrade protection would be a way.  But, a ti8x version of nleash would probably be made a few days later :P

Title: Re: OS 2.55MP released
Post by: apcalc on January 11, 2011, 04:20:31 pm
But, a ti8x version of nleash would probably be made a few days later :P

I would say it would probably be made within a day. :P
Title: Re: OS 2.55MP released
Post by: Ashbad on January 11, 2011, 04:21:02 pm
or less, more like 30 minutes. ;D
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 04:22:08 pm
True. I am certain a downgrade protection removal would be done darn quick. The 83+ series was documented for much longer than the Nspire, anyway. Just take a look at WikiTI.

Plus, documentation or not, look at the Casio Prizm: it started getting hacked before it even came out and 3rd party machine code was run on z80man's calc a few days ago already. :P
Title: Re: OS 2.55MP released
Post by: ztrumpet on January 11, 2011, 04:51:37 pm
Woah, a new OS!  I'd download it if it wasn't so buggy. :-\
Title: Re: OS 2.55MP released
Post by: TIfanx1999 on January 11, 2011, 04:59:27 pm
I wonder what's with TI after years of not updating their OSes. Why all of a sudden are they updating them? So very odd... It doesn't really affect me anyways as I don't own a TI-84.
Title: Re: OS 2.55MP released
Post by: Yeong on January 11, 2011, 05:02:55 pm
TI should get a new programming team
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 05:05:43 pm
I'M not sure. I wonder if it could be to encourage people to buy a 84+ over the cheaper 83+ to make more money. Until recently, the 84+ was just a 83+ with a few more archive, faster processor, a clock almost nobody cares about due to resetting on RAM clears and an USB port. A 83+ over here is $90 sometimes when the school year starts, while a 84+ is almost $150. Most parents probably prefer to go for the cheaper calc.
Title: Re: OS 2.55MP released
Post by: willrandship on January 11, 2011, 05:38:29 pm
Here, An 83+ is $90, no 83+SE available, 84+ $120, 84+SE 130-140

Also, why would TI care if we preferred 2.43? it still has press-to-test, and 2.55's new PTT features aren't applicable to 2.43, since it doesn't have the new functions it blocks, stuff like logbase came out in 2.53. Hopefully, it's a community response that fixes at least a few bugs, but keeps the MP, which I'm all for.
Title: Re: OS 2.55MP released
Post by: critor on January 11, 2011, 05:48:19 pm
After patching and resigning the 2.55MP OS, you can get this on your TI-83+ ! :P

(http://i33.servimg.com/u/f33/13/23/13/53/83p25510.jpg)
Title: Re: OS 2.55MP released
Post by: willrandship on January 11, 2011, 05:58:37 pm
Cool!
Title: Re: OS 2.55MP released
Post by: critor on January 11, 2011, 06:04:38 pm
In fact, it's very unstable on a basic TI-83+, as the 2.55MP OS is using 48Kb RAM (and the basic TI-83+ only has 32Kb RAM).

But it works on a TI-83+SE (128Kb RAM).

So you can upgrade your TI-83+SE to a TI-84+SE with the patch (without the clock and the USB obviously).
Title: Re: OS 2.55MP released
Post by: TIfanx1999 on January 11, 2011, 06:05:50 pm
Really?  ??? That seems rather quick.
*Edit*Ah, your responese ninja'd me. It does seem more likely it would function better on the 83+ SE. =) Still very quick work nonetheless!  ;D
*Edit 2:* What about the clock and USB functions, does it crash if you try to access them or does the patch remove access to them?
*Edit 3* Ninja'd again, this time by will...  <_<
Title: Re: OS 2.55MP released
Post by: willrandship on January 11, 2011, 06:06:08 pm
what happens if you press mode and try to look at the clock? does it crash, or just output garbage?
Title: Re: OS 2.55MP released
Post by: critor on January 11, 2011, 06:09:03 pm
what happens if you press mode and try to look at the clock? does it crash, or just output garbage?

The clock is frozen with a 1986 date.
Secs aren't increased.

Setting the clock doesn't change anything: you're back in 1986 immediatly.
Title: Re: OS 2.55MP released
Post by: TIfanx1999 on January 11, 2011, 06:11:30 pm
Wow, I feel like I'm watching back to the future now. (Even though that was 1985) ;D
Title: Re: OS 2.55MP released
Post by: willrandship on January 11, 2011, 06:12:25 pm
Well, that's good. it would be a pain to never be able to access mode.
Title: Re: OS 2.55MP released
Post by: critor on January 11, 2011, 06:14:58 pm
Credits for the patch go to BrandonW.

He made the 1st patch to install the 2.53MP OS on a TI-83+SE.

I just made exactly the same modifications in the 2.55MP OS, having just to recalculate the checksums.



By the way, seems we're going to have a 2.56MP 84+ ROM in the next basic TI-Nspire OS (supposed to be 2.2 in february).
Title: Re: OS 2.55MP released
Post by: TIfanx1999 on January 11, 2011, 06:16:50 pm
Ah, I was wondering how it came about so quickly. That explains things. Still very nice. I'd love to test on my 83+ SE, but it's kind of... deadish at the moment. :/
Title: Re: OS 2.55MP released
Post by: DrDnar on January 11, 2011, 06:34:32 pm
I don't remember the boot code having a downgrade protection feature. Even if it did, it would have to be certificate-based. A certificate-based restriction could easily be undone by restoring your certificate from an older backup. What? You don't keep backups (http://www.ticalc.org/archives/files/fileinfo/420/42048.html) of your certificate? Shame.

Also, the TI-Boy issue can be solved by first copying the extra OS page to the 32 K sector, and then proceeding as normal. For that matter, you could patch the new OS to use that dang 32 K sector instead.
Title: Re: OS 2.55MP released
Post by: Michael_Lee on January 11, 2011, 06:59:20 pm
Hmm, trying 2.55 now...

Insofar as I can tell, it doesn't seem to conflict with anything I have...
Title: Re: OS 2.55MP released
Post by: fb39ca4 on January 11, 2011, 07:00:40 pm
TI should get a new programming team
It's probably not a team anymore.
Title: Re: OS 2.55MP released
Post by: critor on January 11, 2011, 07:01:41 pm
TI should get a new programming team
It's probably not a team anymore.

 ;D
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 11, 2011, 07:12:26 pm
In fact, it's very unstable on a basic TI-83+, as the 2.55MP OS is using 48Kb RAM (and the basic TI-83+ only has 32Kb RAM).

But it works on a TI-83+SE (128Kb RAM).

So you can upgrade your TI-83+SE to a TI-84+SE with the patch (without the clock and the USB obviously).
Nice!
Title: Re: OS 2.55MP released
Post by: Eeems on January 11, 2011, 07:28:10 pm
I just tweeted at @TICalculators, maybe they will actually be nice and listen to our complaints
Title: Re: OS 2.55MP released
Post by: Juju on January 11, 2011, 07:47:56 pm
In fact, it's very unstable on a basic TI-83+, as the 2.55MP OS is using 48Kb RAM (and the basic TI-83+ only has 32Kb RAM).

But it works on a TI-83+SE (128Kb RAM).

So you can upgrade your TI-83+SE to a TI-84+SE with the patch (without the clock and the USB obviously).
Nice!
So you can install this on a 83+? That's nice.
Title: Re: OS 2.55MP released
Post by: critor on January 11, 2011, 07:59:12 pm
In fact, it's very unstable on a basic TI-83+, as the 2.55MP OS is using 48Kb RAM (and the basic TI-83+ only has 32Kb RAM).

But it works on a TI-83+SE (128Kb RAM).

So you can upgrade your TI-83+SE to a TI-84+SE with the patch (without the clock and the USB obviously).
Nice!
So you can install this on a 83+? That's nice.

Install on a 83+, yes.
Make it work properly, no...

It only works on 83+SE.

83+SE is not the same as 83+.
Title: Re: OS 2.55MP released
Post by: calcdude84se on January 11, 2011, 09:03:48 pm
I don't remember the boot code having a downgrade protection feature. Even if it did, it would have to be certificate-based. A certificate-based restriction could easily be undone by restoring your certificate from an older backup. What? You don't keep backups (http://www.ticalc.org/archives/files/fileinfo/420/42048.html) of your certificate? Shame.

Also, the TI-Boy issue can be solved by first copying the extra OS page to the 32 K sector, and then proceeding as normal. For that matter, you could patch the new OS to use that dang 32 K sector instead.
Do you mean $3C/$7C-$3D/$7D or $2A/$6A-$2B/$6B? IIRC the former already contains OS code, and with respect to the latter the .8xu format can't have the OS anywhere except the first and last sixteen pages.
Title: Re: OS 2.55MP released
Post by: DrDnar on January 11, 2011, 09:21:06 pm
Huh. I thought the sector at 7Ch was unused.
Title: Re: OS 2.55MP released
Post by: calc84maniac on January 11, 2011, 09:21:56 pm
Huh. I thought the sector at 7Ch was unused.
Of course not -- 7Ch and 7Dh are privileged pages after all, how else would TI unlock flash in their OS?
Title: Re: OS 2.55MP released
Post by: JosJuice on January 12, 2011, 01:43:34 am
I just installed WFRNG OS after having used 2.55MP. The installing went fine, although the OS itself had some problems (which are not related to 2.55MP). I think it's safe to assume that downgrading and installing third-party OSes still work.
Title: Re: OS 2.55MP released
Post by: SirCmpwn on January 12, 2011, 01:44:05 am
Downgrading can never be turned off on a TI-83/84+ (SE).
Title: Re: OS 2.55MP released
Post by: JosJuice on January 12, 2011, 01:45:32 am
Yeah, that's what I thought too. I just posted this in case someone else was afraid that TI had the ability to block it.
Title: Re: OS 2.55MP released
Post by: BrandonW on January 12, 2011, 07:55:46 am
(cross-posted from elsewhere)

With the release of OS 2.55MP, it seems we're going to have to disassemble each update TI pushes out and see what they change, so I put together a little package to make it easier for myself, and if you care, you too.

I created a little C# thing last night called Pterodactyl that creates IDC scripts for use with IDA Pro generated from elements of ti83plus.inc to automagically set labels and cross references of page 0 calls and BCALLs throughout all (now 19) pages of the TI-OS, plus RAM equates.

This makes it very easy to get IDA to analyze most of the code for us and it makes it a lot easier to dive into any OS version and find out exactly what it's doing and why.

It's at http://brandonw.net/calcstuff/pterodactyl.zip and the source is at http://brandonw.net/svn/calcstuff/Pterodactyl/trunk/ if anyone wants to use it.

I was able to pound out an OS 2.55MP disassembly inside of an hour using this tool which I've uploaded at http://brandonw.net/crap/OS2.55MPDisassembly.zip if you want to dig into it yourself.

Hopefully this will help me/us analyze differences in OS versions quickly and more easily than before, and possibly figure out what TI did wrong with the MathPrint OSes and maybe even fix them.

Forgive the horrible code, it was quick and dirty and never meant to be used by your average user.
Title: Re: OS 2.55MP released
Post by: Hot_Dog on January 12, 2011, 12:00:11 pm
I just sent it to WabbitEmu. The first thing I noticed is that they expanded the OS onto page $73 (I knew they were out of space). Which means that the $70-$73 sector is now out of bounds to be screwed with. Which in turn, I believe, means that Ti-Boy would corrupt your OS.
I wonder if they understand asm over at TI, or they ported Java to it? I'm quite surprised that they are going through so many pages.

Unfortunately, I'm pretty sure they understand ASM.  If you look at the SDK documentation, they give a lot of documentation and optimizations that hint at no use of Java.

The problem with TI is, they don't have anyone who FULLY understands ASM.  If they hired Calc84maniac, Iambian, Runer112, SirCmpwn, etc., we would get a perfect operating system.  And I'm quite sure that these 4--and many more--would love to get paid to create a decent OS for Ti calculators.

Oh well, at least we know it will be a while before Ti-84+ calculators are discontinued
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 12, 2011, 12:04:37 pm
Thank you BrandonW. I wasn't going to update because I didn't feel like remodding this OS. By now I can! :D
Title: Re: OS 2.55MP released
Post by: Munchor on January 12, 2011, 01:16:10 pm
Quote
Unfortunately, I'm pretty sure they understand ASM.  If you look at the SDK documentation, they give a lot of documentation and optimizations that hint at no use of Java.

The problem with TI is, they don't have anyone who FULLY understands ASM.  If they hired Calc84maniac, Iambian, Runer112, SirCmpwn, etc., we would get a perfect operating system.  And I'm quite sure that these 4--and many more--would love to get paid to create a decent OS for Ti calculators.

Oh well, at least we know it will be a while before Ti-84+ calculators are discontinued

It's fun that us, coders of their calculators understand more about their main programming language than them.
Title: Re: OS 2.55MP released
Post by: AngelFish on January 12, 2011, 01:22:40 pm
Keep in mind that TI > Us in many areas even still. Take, for example, the USB protocols (or the keyboard for the Nspire), which we don't fully understand.
Title: Re: OS 2.55MP released
Post by: Munchor on January 12, 2011, 01:24:02 pm
Keep in mind that TI > Us in many areas even still. Take, for example, the USB protocols (or the keyboard for the Nspire), which we don't fully understand.

Of course, that's the natural way of things, but I just remembered that Z80 processors are used in a lot more things, so, it's not just TI calculators, hence they don't fully know ASM (as someone said here).
Title: Re: OS 2.55MP released
Post by: JosJuice on January 12, 2011, 01:43:04 pm
Keep in mind that TI > Us in many areas even still. Take, for example, the USB protocols (or the keyboard for the Nspire), which we don't fully understand.
That's just because TI made the USB protocols and the Nspire keyboard. If we would've made those instead, TI wouldn't be able to understand them. They might know a bit more about their calcs than what we do, but we might be better at programming them.
Title: Re: OS 2.55MP released
Post by: Happybobjr on January 12, 2011, 01:49:11 pm
Maybe Ti does all this as if publicity stunt.
Title: Re: OS 2.55MP released
Post by: Ikkerens on January 12, 2011, 01:50:44 pm
^ this :w00t:
Title: Re: OS 2.55MP released
Post by: Ashbad on January 12, 2011, 01:56:57 pm
And I'm quite sure that these 4--and many more--would love to get paid to create a decent OS for Ti calculators.

I bet they would even do it for free to keep TI from fucking up again.
Title: Re: OS 2.55MP released
Post by: AngelFish on January 12, 2011, 02:04:59 pm
Sir (and BrandonW) are already working on replacing TI-OS, so I don't think it'd be much of a change for them. It'd probably just give Sir a parental excuse to program TI-OS the way it should have been done.
Title: Re: OS 2.55MP released
Post by: Happybobjr on January 12, 2011, 02:28:13 pm
Or just destroy ti-os and replace everything with KOS. ;)
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 12, 2011, 07:23:45 pm
With new OS's from TI come the old well documented errors. I don't know why TI doesn't feel like fixing these. Err:Version was fixed by NOPing some bytes in one area and shifting some bytes in another. Err:Bad Address was fixed by shifting some bytes to fix a beginner asm mistake. But they're fixed.

Also, this patches PTT. Both of the resets require STAT to be pressed as well. So 8+2+STAT and 8+5+STAT. It also patches Press-To-Test to not delete all your precious groups and now UP+DOWN+ON disables PTT.

I'll update this again later to make the RAM clear screen look like the classic ones. But I think I'm done for today.

If you want to make your own changes, or just to see my awesome new patcher :D, check out the source. (just remove all those z's)

Edit:
     Oh, btw. This takes ages to run. So don't give up hope. It also has an undo button. :)

Edit2:
     For the patcher, see page 8.
Title: Re: OS 2.55MP released
Post by: Deep Toaster on January 12, 2011, 07:59:25 pm
:D Great, the patches are out already!

And I wonder why TI still didn't fix those... Has anyone actually asked them directly about those bugs?

EDIT: So basically, either TI doesn't have a spy on the forums, or TI knows and just wants to piss us off :P
Title: Re: OS 2.55MP released
Post by: Michael_Lee on January 12, 2011, 08:25:03 pm
Or perhaps the coders at TI don't have the time/don't have support from higher-ups to work on fixing bugs?
Title: Re: OS 2.55MP released
Post by: Happybobjr on January 12, 2011, 08:27:18 pm
Maybe they don't know about the bugs?

I mean anyone who cares enough about calcs don't usually email ti
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 12, 2011, 08:41:03 pm
I'm going to try to see if I can get through Ti-Cares to the developers. (No one's ever successfully done this done this right?)

Here is what I sent:
Spoiler For Spoiler:
OS bug fixes
Please pass this on to the developers. I'm part of the developer community for these calculators and we have always wanted to make contact with the creators to help them make the calculators run better.

Occasionally, when trying to ungroup a variable, the user will be greeted with an Err:Version. I have found the culprit of this error and I have even patched it in OS's 1.19, 2.43, 2.53, and 2.55. I was never going to email you guys because I thought these calculators were done, but with the release of 2.55 I can see that that is not true. I would post the code to fix it here, but I'm not sure if this email will even get to the right place. If you reply, I can give you a lot better explanation via email. But the gist is that most of the problems come from when the archive header spans a page boundary. There are two problem spots, the first causes the group to span three pages, which makes it unrecoverable, the second just errors when you try to ungroup it.

Also, sometimes when you go to unarchive a variable, it will give an Err:Bad Address. I have fixed this one in 2.43, 2.53, and 2.55. It is triggered when the data for a variable is on a separate page than the header. It can be remedied by a garbage collect, but your average user doesn't know that.

Like I said earlier, if I can get a response from a developer to this, you will have made the entire Ti community happy. I can also show you the specifics on how to fix these so it will be as simple as copy and paste.

Thanks,
Brian Coventry
Title: Re: OS 2.55MP released
Post by: calcdude84se on January 12, 2011, 08:44:57 pm
Interesting typo you got there :P
But no, I don't think anyone's gotten through to the devs anytime recently.
Title: Re: OS 2.55MP released
Post by: Eeems on January 12, 2011, 09:28:52 pm
Good luck! Hopefully we can finally get through to them, but who knows...
Title: Re: OS 2.55MP released
Post by: jnesselr on January 12, 2011, 09:31:04 pm
Hey, if you get an email address from one of the devs, do me a favor and give it to me. I'd love to get some more info about that.  I just hope that they would be happy someone can fix their code and would send it on. Please, do post the reply. I'm waiting anxiously. ;-)
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 13, 2011, 12:05:08 am
Hey nice stuff ThePenguin! Also I hope TI-Cares reply with something decent. I hope they don't use the excuse that you damaged your calc with ASM stuff. <_<
Title: Re: OS 2.55MP released
Post by: TIfanx1999 on January 13, 2011, 08:51:06 am
/me crosses fingers
Well, I don't expect much from TI, but here's hoping.
Title: Re: OS 2.55MP released
Post by: Munchor on January 13, 2011, 09:40:15 am
Thepenguin, just hope that works somehow ;D
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 13, 2011, 03:00:18 pm
This could be promising.
Spoiler For Spoiler:
Brian,

Thank you for your reply,

I understand you would like to be put in direct contact with the development team. I do apologize I have no way to put you in direct contact with the development team.

I will however pass along your contact information to my superiors; I cannot however guarantee you will receive a response back.

I hope that you find this information helpful. If you have further questions or comments, please feel free to send me an email.

Warmest Regards,

Aldo Granados
Title: Re: OS 2.55MP released
Post by: JosJuice on January 13, 2011, 03:07:50 pm
Wow... They're actually listening to us! Let's hope we'll got another reply, from the developers.
Title: Re: OS 2.55MP released
Post by: Happybobjr on January 13, 2011, 03:41:55 pm
Spoiler For spoiling:
James,

Thank you for contacting Texas Instruments.

These are all very good questions you have about the TI-84 Plus and TI-83 Plus family calculators. Let me check with the calculator developers and I will let you know what I find out.

The developers have up to (48) hours to respond so as soon as I hear back from them, I will let you know.

Please reply to this e-mail so I can follow up with you.

Warmest Regards,

*bleeping out*
Title: Re: OS 2.55MP released
Post by: AngelFish on January 13, 2011, 03:49:58 pm
Spoiler For Spoiler:
Qwerty.55,

Thank you for contacting us.

We are have recently become aware of many of the bugs present in our operating system and our development is working to fix them.

Consequently, we are seeking help from members of the community, including the aforementioned Brandon Wilson.

Warmest regards,

[censored]

Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
Spoiler For Spoiler:
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If only... :P
Title: Re: OS 2.55MP released
Post by: souvik1997 on January 13, 2011, 04:15:08 pm
I doubt it.
Title: Re: OS 2.55MP released
Post by: critor on January 13, 2011, 04:18:20 pm
Brandon will probably be glad to know! :P

Why didn't they tell him directly before?...
Title: Re: OS 2.55MP released
Post by: calc84maniac on January 13, 2011, 04:19:05 pm
Brandon will probably be glad to know! :P

Why didn't they tell him directly before?...
Seems that was a joke. It didn't help that he edited his post putting endless spoiler tags around the part saying it was a joke >_>
Title: Re: OS 2.55MP released
Post by: jnesselr on January 13, 2011, 06:33:20 pm
But the one that thepenguin got back was real, correct? I know they have a way to get a hold of the developers, they just don't want you talking to them.
Title: Re: OS 2.55MP released
Post by: Jonius7 on January 13, 2011, 07:42:59 pm
wow a new version? wasn't the ti84 discontinued or something
Title: Re: OS 2.55MP released
Post by: Happybobjr on January 13, 2011, 08:03:08 pm
it was the +SE
Title: Re: OS 2.55MP released
Post by: squidgetx on January 13, 2011, 08:34:14 pm
except not really :P

I probably won't bother upgrading to 2.55...I recently went back to 2.43 and I like it... a lot
Title: Re: OS 2.55MP released
Post by: calcdude84se on January 13, 2011, 08:42:53 pm
I upgraded, but only because I already had 2.53MP on it :P
Title: Re: OS 2.55MP released
Post by: jnesselr on January 13, 2011, 08:54:43 pm
except not really :P

I probably won't bother upgrading to 2.55...I recently went back to 2.43 and I like it... a lot
Yeah, so did I. I think I know a way to figure out if it's MP or not in basic. I'll have to experiment a little more, though.
Title: Re: OS 2.55MP released
Post by: Deep Toaster on January 14, 2011, 10:58:02 am
except not really :P

I probably won't bother upgrading to 2.55...I recently went back to 2.43 and I like it... a lot
Yeah, so did I. I think I know a way to figure out if it's MP or not in basic. I'll have to experiment a little more, though.

Some difference in math? That'd be nice, since it would solve that CLASSIC problem.
Title: Re: OS 2.55MP released
Post by: Silver Shadow on January 14, 2011, 12:08:58 pm
Just do "1/0" and wait. If your calc corrupts your OS certificate, then you know you're on MP. :P
Title: Re: OS 2.55MP released
Post by: JosJuice on January 14, 2011, 12:18:43 pm
Just do "1/0" and wait. If your calc corrupts your OS certificate, then you know you're on MP. :P
But if we're on 2.43, the program will quit D:
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 14, 2011, 05:20:25 pm
Still no developer response. But here's that patch I talked about earlier. It does everything from before, and now it puts your ram cleared screen back to normal. (I don't like that big box at the bottom.)

I fixed this in a really cool way. First, I nop'd a jr so that execution falls through to the place where it sets the "ROM cleared"'s coordinates. Then, I changed the page 0 call address so that it just flat out skips the box drawing.

Also, I forgot to mention this earlier, but the OS considers all of the $70 sector to be OS code. I noticed this when I was trying to re-checksum the OS. What this really means is that if you make any permanent changes to $70-72, the OS will be invalid and will "ROM fail" in the self test.

Edit:
    The zStart patch is on the way, but I'll be gone for about a week so it might be a while. (Why zStart? You never have to worry about MATHPRINT ever again)

Edit2:
    Fixed the patcher. Look on page 8 for details.
Title: Re: OS 2.55MP released
Post by: Munchor on January 14, 2011, 07:21:37 pm
Still no developer response. But here's that patch I talked about earlier. It does everything from before, and now it puts your ram cleared screen back to normal. (I don't like that big box at the bottom.)

I fixed this in a really cool way. First, I nop'd a jr so that execution falls through to the place where it sets the "ROM cleared"'s coordinates. Then, I changed the page 0 call address so that it just flat out skips the box drawing.

Also, I forgot to mention this earlier, but the OS considers all of the $70 sector to be OS code. I noticed this when I was trying to re-checksum the OS. What this really means is that if you make any permanent changes to $70-72, the OS will be invalid and will "ROM fail" in the self test.

Edit:
    The zStart patch is on the way, but I'll be gone for about a week so it might be a while. (Why zStart? You never have to worry about MATHPRINT ever again)

Nice :D
Title: Re: OS 2.55MP released
Post by: TIfanx1999 on January 15, 2011, 07:53:35 am
@The penguin77: Nice work! =)
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 16, 2011, 03:35:41 pm
Nice, I wonder if they will eventually fix these bugs. <_<
Title: Re: OS 2.55MP released
Post by: jnesselr on January 16, 2011, 03:39:28 pm
Still no developer response.
For the record, if you get some awesome developer response, I'm not gonna hand my thrown over.  ;-)

But seriously, I doubt we'll get a response at all. I really hope we do, though.  Maybe send them a modified OS with all their bugs fixed.
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 17, 2011, 08:24:44 pm
Well. I can tell no one actually ran my patcher because it doesn't work on real hardware. :) Evidently, sending flash commands at the boot page makes the calculator angry.

But, after roughly 8 OS reinstalls, the patcher is complete. (I just said if it's trying to write to the boot page, don't do that). I even added in a counter that shows you the progress of the patch. But that was purely a byproduct of debugging on a real calculator.

Also, I got zStart working. Which is the whole reason that I tested it on my calculator because I could now enjoy my settings the way I like them. Here is the new patcher (I updated the other post) and the newest zStart which will appear on ticalc.org shortly. I also added in the option to turn off the stat wizards.

Edit:
    This version of zStart is way safer than all the old ones. You'll be perfectly fine just sending it to your calc without making any changes.
Title: Re: OS 2.55MP released
Post by: Michael_Lee on January 17, 2011, 08:53:53 pm
Quick question: for zStart, what does Solver++ do?
Title: Re: OS 2.55MP released
Post by: thepenguin77 on January 17, 2011, 09:35:21 pm
Ah, yes. That was going to be my awesome solver replacement. Although I never finished it because I got bored, and because it isn't really necessary.

It probably won't crash your calculator. So to check it out, turn it on in zStart, then go to the bottom of your MATH menu.
Title: Re: OS 2.55MP released
Post by: critor on January 18, 2011, 03:42:04 pm
Sorry if that has allready been reported, but 2.55MP is having problems with Xlib, exactly like 2.53MP.

It might be harder to fix, as the ROM page is completly full...
In 2.53MP, Brandon did call some code he inserted at the end of the page.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 18, 2011, 08:49:17 pm
Yeah I'm not sure how he'll manage to fix it.

However xLIB is pretty much obsoleted by Doors CS 7 now, since Doors CS 7 pretty much includes the entire xLIB app, Celtic III and some parts of Omnicalc. It would probably be nice if there was a way to get xLIB to work, though, for people who need the extra 32 KB that DCS7 takes.
Title: Re: OS 2.55MP released
Post by: Eeems on January 18, 2011, 10:02:34 pm
Someone could also try providing a patch for xlib itself or something. Just a thought
Title: Re: OS 2.55MP released
Post by: Ikkerens on January 20, 2011, 10:58:33 am
Long term usage of 2.55mp on a real calc:
Don't install it!
I am currently unable to plot any formula's!
When I do so, it splits the screen into 2 parts and turns 'm around :O
(The top of the page is on the middle, and goes down, and when it reaches the bottom of the screen, continues on the top of the screen)
If that makes any sense

Anyway, long term usage, don't use it ;)
Title: Re: OS 2.55MP released
Post by: fb39ca4 on January 20, 2011, 01:48:54 pm
Did TI's last z80 programmer accidentally microwave their brains or something?
Title: Re: OS 2.55MP released
Post by: Michael_Lee on January 20, 2011, 03:32:53 pm
Long term usage of 2.55mp on a real calc:
Don't install it!
I am currently unable to plot any formula's!
When I do so, it splits the screen into 2 parts and turns 'm around :O
(The top of the page is on the middle, and goes down, and when it reaches the bottom of the screen, continues on the top of the screen)
If that makes any sense

Anyway, long term usage, don't use it ;)

What do you mean by 'formulas'?
Title: Re: OS 2.55MP released
Post by: Ikkerens on January 20, 2011, 04:00:19 pm
Talking about formulas(functions) and such in Y1, Y2.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 20, 2011, 09:05:46 pm
O.o screenies? ???

@Eeems didn't BrandonW write one?

Title: Re: OS 2.55MP released
Post by: qazz42 on January 20, 2011, 09:09:09 pm
Did TI's last z80 programmer accidentally microwave their brains or something?
Too much crack methinks...
Title: Re: OS 2.55MP released
Post by: ruler501 on January 20, 2011, 09:09:35 pm
thats TI for you isn't it
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 20, 2011, 09:10:56 pm
At least Output( actually works, though. *cough*Casio Prizm OS 1.01*cough*
Title: Re: OS 2.55MP released
Post by: Munchor on January 21, 2011, 03:25:29 pm
At least Output( actually works, though. *cough*Casio Prizm OS 1.01*cough*

I'm afraid of all the bugs that have been found already!
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 23, 2011, 01:12:11 am
Yeah, although fortunately Output was fixed now.
Title: Re: OS 2.55MP released
Post by: AngelFish on January 23, 2011, 01:17:25 am
At least Output( actually works, though. *cough*Casio Prizm OS 1.01*cough*

I'm afraid of all the bugs that have been found already!

All of the bugs? I don't know of any others and that one was fixed by the time the product was even in stores.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on January 23, 2011, 02:02:34 am
Yeah same here, unless some bugs already present in older calcs were not fixed still. Seems like the major ones showed up in the online release, though.
Title: Re: OS 2.55MP released
Post by: Mohammad on February 01, 2011, 12:28:21 am
Man, what a dumb OS...wont even accept apps from a computer...
Title: Re: OS 2.55MP released
Post by: Michael_Lee on February 01, 2011, 12:31:45 am
Man, what a dumb OS...wont even accept apps from a computer...

Erm... it does, I think it might just be TI-Connect or something else weird that's messing with your calc.
Title: Re: OS 2.55MP released
Post by: Mohammad on February 01, 2011, 12:42:23 am
under MODE: gotoformatgraph is Bs...it does nothing and u  cant turn it on in wabbit. its turned on in my calc...and the thing is:
I CAN SELECT BOTH YES AND NO AND BOTH LIGHT UP...how stupid is that!
Title: Re: OS 2.55MP released
Post by: Deep Toaster on February 01, 2011, 09:15:55 am
Goto format graph is supposed to just jump into the 2ND+[FORMAT] menu (it's been there since 2.53MP).
Title: Re: OS 2.55MP released
Post by: Mohammad on February 02, 2011, 12:34:23 am
Goto format graph is supposed to just jump into the 2ND+[FORMAT] menu (it's been there since 2.53MP).
how stupid is that? why cant you just press that yourself...
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on February 02, 2011, 02:21:28 am
Is it me or does 2.55MP seems to cause plenty of TI-Connect issues to people? You're not the first one to start having problems after upgrading...
Title: Re: OS 2.55MP released
Post by: JosJuice on February 02, 2011, 09:32:50 am
Is it me or does 2.55MP seems to cause plenty of TI-Connect issues to people? You're not the first one to start having problems after upgrading...
My biggest problem with it was that it took about a minute for the calc to turn on after transferring the OS... The rest was solved with WFRNG OS :P
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on February 02, 2011, 06:47:57 pm
1 minute? O.O
Title: Re: OS 2.55MP released
Post by: JosJuice on February 03, 2011, 01:34:16 am
Yeah, or maybe just 40 seconds. It was weird. Wabbit couldn't start it properly either... It seemed Wabbit itself froze the first time I tried to run 2.55.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on February 04, 2011, 12:53:32 am
Strange. I hope they did not add a boot sequence like on the TI-Nspire...
Title: Re: OS 2.55MP released
Post by: Mohammad on February 04, 2011, 12:59:06 am
how do you make an OS? i want to make a computer on a calculator that does only gaming no calculator lol!
Title: Re: OS 2.55MP released
Post by: z80man on February 04, 2011, 01:26:32 am
how do you make an OS? i want to make a computer on a calculator that does only gaming no calculator lol!
Well you have to be very good at asm programming and you have to be able to work well with the hardware. Also you have to write your own system calls. Other than that good luck  ;)
Title: Re: OS 2.55MP released
Post by: AngelFish on February 04, 2011, 01:43:40 am
how do you make an OS? i want to make a computer on a calculator that does only gaming no calculator lol!

With a lot of blood, sweat, and animal sacrifices.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on February 04, 2011, 03:10:08 am
Yeah making an OS for the calc is a difficult and long task. Even the best coders around have troubles making one. And yes you need to learn assembly to do it.
Title: Re: OS 2.55MP released
Post by: Guzzie on February 17, 2011, 11:52:24 pm
Anyone care to share directions on how to patch this for the 83+SE?
Title: Re: OS 2.55MP released
Post by: Darl181 on February 17, 2011, 11:53:47 pm
It's an 84 os, I don't think it can be put on the 83, PBEs at least. :(
There's an application called prettyprint somewhere, though...it does about the same thing

edit: link http://www.ticalc.org/archives/files/fileinfo/208/20807.html (http://www.ticalc.org/archives/files/fileinfo/208/20807.html)
Title: Re: OS 2.55MP released
Post by: Guzzie on February 18, 2011, 12:04:59 am
After patching and resigning the 2.55MP OS, you can get this on your TI-83+ ! :P

(http://i33.servimg.com/u/f33/13/23/13/53/83p25510.jpg)

Critor seems to have it figured out.
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on February 18, 2011, 12:08:35 am
Yeah he did. Note that the pic above is a TI-83+, not a 83+SE, though.

Unfortunately, I can't help you Guzzie because I couldn't get the OS to work on my 83+SE either. I even tried a copy BrandonW had on his website and it still didn't work. My SE might be running different hardware or something.

Welcome on the forums by the way!
Title: Re: OS 2.55MP released
Post by: PeonHero on February 18, 2011, 12:09:16 am
MathPrint doesn't seem that useful, a new update that removes the functionality of some of your programs just to be able to view fractions isn't worth it!!
Title: Re: OS 2.55MP released
Post by: ztrumpet on February 18, 2011, 12:16:39 am
Anyone care to share directions on how to patch this for the 83+SE?
I believe this will work (it's 2.53 though): http://brandonw.net/calcstuff/83PlusSE_OS2.53MP.8xu
Title: Re: OS 2.55MP released
Post by: AngelFish on February 18, 2011, 12:22:01 am
MathPrint doesn't seem that useful, a new update that removes the functionality of some of your programs just to be able to view fractions isn't worth it!!

MathPrint has been around since OS v2.53 Why would you patch that though? Just replace it with OS v2.43
Title: Re: OS 2.55MP released
Post by: DJ Omnimaga on February 18, 2011, 12:25:00 am
yeah Ztrumpet I tried that one too and it didn't run on my 83+SE either. :(

@PeohHero yeah, well said. It depends if the person uses any program on his calc, but if you plan to play games or the like, avoid any MP OS at all cost.

One thing I like about MP Oses, though, is being able to go up in the last home screen entries, though. It's easier to paste old stuff and at least TI made it available with mathPrint disabled too. However it can be intrusive sometimes.

@Qwerty.55 He didn't mean an OS patch, for the update he was talking about MP itself.
Title: Re: OS 2.55MP released
Post by: AngelFish on February 18, 2011, 12:27:46 am
Oh, okay. I misunderstood that.
Title: Re: OS 2.55MP released
Post by: Darl181 on February 18, 2011, 12:51:42 am
After patching and resigning the 2.55MP OS, you can get this on your TI-83+ ! :P

[big picture goes here]

Critor seems to have it figured out.
Wow, didn't know that...looks cool
Title: Re: OS 2.55MP released
Post by: Guzzie on February 18, 2011, 01:23:16 am
Well I was mostly interested in the numeric integration and derivation functions that were part of the 2.5*MP series not so much the pretty printing. Unless these functions were around prior...that was really the only reason I wanted that FW on my 83+SE.

EDIT: Well I feel dumb, nDerive() and fnInt() have been there all along. Oh well. :banghead:

Thanks for the warm welcome by the way! :)
Title: Re: OS 2.55MP released
Post by: Deep Toaster on February 18, 2011, 08:05:54 pm
After patching and resigning the 2.55MP OS, you can get this on your TI-83+ ! :P

[big picture goes here]

Critor seems to have it figured out.
Wow, didn't know that...looks cool

Yep, I think it's unstable though.

And welcome to Omni!
Title: Re: OS 2.55MP released
Post by: Munchor on February 20, 2011, 06:39:54 am
Now that Texas will release NSpire CX I hope they have time to make a new NSpire OS with OS 2.55MP for the 84+ Keypad.
Title: Re: OS 2.55MP released
Post by: Lionel Debroux on February 20, 2011, 07:25:22 am
Well, 2.55MP isn't a significant feature-wise or bugfix-wise improvement wrt. 2.53MP, which is itself a step backwards for bugs wrt. 2.43.
Title: Re: OS 2.55MP released
Post by: Deep Toaster on February 20, 2011, 09:55:29 am
Now that Texas will release NSpire CX I hope they have time to make a new NSpire OS with OS 2.55MP for the 84+ Keypad.

I'd actually hope not. After 2.1, who knows what they'll put in this time? And as Lionel said, not much of an improvement there :P
Title: Re: OS 2.55MP released
Post by: Munchor on February 20, 2011, 09:56:28 am
Well, 2.55MP isn't a significant feature-wise or bugfix-wise improvement wrt. 2.53MP, which is itself a step backwards for bugs wrt. 2.43.

Now that Texas will release NSpire CX I hope they have time to make a new NSpire OS with OS 2.55MP for the 84+ Keypad.

I'd actually hope not. After 2.1, who knows what they'll put in this time? And as Lionel said, not much of an improvement there :P

Even though, I think it's quite fair for them to do it :)
Title: Re: OS 2.55MP released
Post by: TIfanx1999 on February 20, 2011, 10:27:11 am
Very likely Scout is right, and they will get around to updating it eventually.
Title: Re: OS 2.55MP released
Post by: Deep Toaster on February 20, 2011, 10:46:29 am
Now that Texas will release NSpire CX I hope they have time to make a new NSpire OS with OS 2.55MP for the 84+ Keypad.

Confirmed by Critor: http://cemetech.net/forum/viewtopic.php?p=136970#136970

But if the CX comes out,...