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Messages - critor

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1651
News / Re: OS 2.55MP released
« 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).

1652
News / Re: OS 2.55MP released
« 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


1653
News / Re: OS 2.55MP released
« on: January 11, 2011, 03:38:39 pm »
Quote from: 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.

Strangely, 3 of the new written sectors are just full of 0xFF bytes.

1654
News / Re: Casio Prizm FX-CG10 released
« on: January 10, 2011, 08:26:32 pm »
in a recent PDF for teachers, Casio has pushed back the release date for the Casio Prizm in France even further...

The prizm will be available for back-to-school 2011 (late june 2011 in the best case, september 2011 in the worst case...)


See news in french:
http://casio.bank.free.fr/index.php?mod=news&ac=commentaires&id=15


I'm very disappointed... :(

You guys will have hacked everything before I can get one...


Guess I'm going back to hacking TI-Nspire calculators...

1655
Other Calc-Related Projects and Ideas / Re: If by some mirace......(nspire)
« on: January 10, 2011, 06:03:41 pm »
http://ourl.ca/8594

1656
Other Calc-Related Projects and Ideas / Re: If by some mirace......(nspire)
« on: January 10, 2011, 05:49:34 pm »
Quote from: willrandship on January 10, 2011, 05:44:54 pm
Boot1 is read only :(

You're wrong. See my topic about hacking boot1.

1657
Other Calculators / Re: Let's overclock Nspire to x2 or x4
« on: January 09, 2011, 10:19:49 am »
No problem?
Then I'm going to update Nover on TiCalc too.

I've posted a french news:
http://ti.bank.free.fr/index.php?mod=news&ac=commentaires&id=919

The plot is in english: feel free to reuse it in a news.
If I didn't want that, I would have made it in french...

1658
Other Calculators / Re: Let's overclock Nspire to x2 or x4
« on: January 07, 2011, 07:11:24 pm »
Just updated Nover on TI-Bank with the 1.1 version.
http://ti.bank.free.fr/index.php?mod=archives&ac=voir&id=2098

New features:
- support TouchPad keypad
- support OS 2.1

You can still set all possible values. I have not forbidden anything.
Just be aware that:
- you'll crash the OS by setting a x0 ratio with OSes 2.x
- using any base frequency different than 180MHz will cause screen refreshing & USB transfers/detection problems with OSes 2.0 and older
- if the CPU frequency becomes too low, you'll have problems with the screen refreshing too

Don't want to have problems?
Juste use the official preset configs:

[ x ][ enter ] for fastest config on 1.1-2.0 OSes (x1.8 )
[ 9 ][ enter ] for fastest config on 2.1 OS (x3)
[ / ][ enter ] for official config on 1.1-2.0 OSes (x1)
[ 6 ][ enter ] for official config on 2.1 OS (x2.4)


Please report any problems.

1659
nDoom / Re: nDOOM - Work in progress
« on: January 07, 2011, 05:45:07 pm »
Quote from: Mrakoplaz on January 06, 2011, 10:35:15 am
I've been looking into the crash-on-quit bug and it's driving me crazy. It always seems to crash after main() returns, which might indicate a fault with Ndless

You also get crashes on exit:
- if you haven't freed all allocated spaces
- if you haven't closed all open files

1660
Other Calculators / Re: Let's overclock Nspire to x2 or x4
« on: January 07, 2011, 05:35:21 pm »
Finally, noticed a little problem on HackSpire:

Quote from: HackSpire
900B0000 (R/W): Clock speed load value

    * Bits 1-7: Multiply by 2 to get base/CPU ratio (OS < 2.1: 1 -> CPU at 90 Mhz, OS >= 2.1: 2 -> CPU at 120 Mhz)

On all OSes, the ratio is 2, because the written value is 1.
There is no difference between OS 2.1 and older OSes.


http://hackspire.unsads.com/wiki/index.php/Memory-mapped_I/O_ports#900B0000_-_Power_management

1661
Other Calculators / Re: Let's overclock Nspire to x2 or x4
« on: January 06, 2011, 09:19:27 pm »
Thanks for the interesting explanation calc84maniac.


I've also noticed strange things with the lowest values of CPU/AHB.

CPU/AHB=2 (value set to 1) and CPU/AHB=1 (value set to 0) seem to give very similar performances. Tested with 180MHz, 240MHz, and 300MHz.

For reference, CPU/AHB=3 (value set to 2) is around 20% faster.


Any idea of what's going on ?
Is CPU/AHB set to 2 when we want CPU/AHB=1 ?
Or is more than half of the cpu frequency useless?



Here are the relative performances for the same OS:


Note that for the same config, different OSes have slightly different calculation performances.

For example:
- OS 1.7 is slower than OS 1.4
- OS 2.0.1 is faster than OS 1.7
- OS 2.1 is slower than OS 2.0.1 but faster than OS 1.4

1662
Other Calculators / Re: Let's overclock Nspire to x2 or x4
« on: January 06, 2011, 04:16:35 pm »
Made some tests about setting base/cpu=0 or base/cpu=2.

With OS 1.7, 0 and 2 seem to give very similar performances.

With OSes 2.0.1 & 2.1, 0 gives you a freeze after returning to the OS.
(so the problem comes from the OS and not the hardware)


I'm wondering if I should forbid setting base/cpu=0 or not...
What do you think ?

1663
Other Calculators / Re: mViewer - Nspire BMP viewer
« on: January 06, 2011, 11:44:29 am »
mViewer has just been updated.

http://ti.bank.free.fr/index.php?mod=archives&ac=voir&id=2014


The centered zoom in/out bug is now fixed.

New features:
* 32 colors mode (only usefull to improve rendering of shaded images)
* direct scroll of the full screen width/height with the numeric keys (usefull for images containing mostly text)
* emergency power off screen key (in exams? :P... screen won't be turned back on through the On key, but only through Ctrl or Esc keys... which should trick most teachers)
* a more realistic greayscale convertion for color images, based on luminescance

1664
Other Calculators / Re: Let's overclock Nspire to x2 or x4
« on: January 06, 2011, 10:26:17 am »
Quote from: DJ Omnimaga on January 04, 2011, 02:53:26 pm
Quote from: critor on January 03, 2011, 07:37:48 am
Wonderfull!!!

It would be great if we could overclock previous OSes to 300MHz base (instead of 180MHz) without having that screen problem.

Upgrading from 2.0 to 2.1 makes you lose 1.4Mb of free space.
It's useless to fasten the cpu, if we don't have enough free space anymore to store BMP/WAD files...

Check the free space available after a full reset with each OS in english language (can change but very slightly with another language):


("light" is what you're getting when patching your TNO/TNC file with TNOC)
Pretty huge difference indeed. I am still a bit scared of how large OSes will be in two years or so. X.x

Cough cough... go on like that, TI, yeah!

In a year, you'll have to use the maintenance menu to totally reformat your Flash ROM, before installing a new OS.
Because the TNO/TNC file won't fit in the free space if an OS is allready installed! :P

In 2 years, OSes simply won't fit in the Nspire Flash ROM! :P :P
But TI won't notice before releasing them, as they mostly care for their computer software, on which most tests are performed. :P :P :P
(fortunately, TNOC will still be there...)

Finally, the Prizm is better with its 16Mb user Flash. Just remove the preinstalled add-ins, and you get more free space than on a TI-Nspire!

1665
Ndless / Re: Ndless 2.0 for TI-Nspire Clickpad/Touchpad
« on: January 05, 2011, 12:12:08 pm »
Quote from: SatanicToothpaste on January 05, 2011, 10:49:58 am
I know about the loop myself (caused by the absence of appropriate input?) and I've advised my peers to stay with the oldschool models.

You can use Ndless.

If you have a black basic TI-Nspire, you have to replace the TouchPad keypad by a ClickPad keypad and install OS 1.7 + Ndless 1.7.

If you have a black CAS TI-Nspire, you have to install OS 1.4 + Ndless 1.4.


Ndless 1.4 supports programs built for Ndless 1.7. Ndless 1.4 is simply a port of Ndless 1.7 on OS 1.4.

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