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Messages - critor

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841
News / Re: Revival of the TI-81
« on: February 20, 2012, 10:01:58 am »
Quote from: DJ_O on February 18, 2012, 10:58:31 pm
Wow this is awesome. But does the WabbitEmu version you have there has the ROM built in or not?

WabbitEmu does not include any ROM.

The modded TI8XEMU on tiplanet.org does automatically load the TI-81 V2.0V ROM somewhere, yes. But the url is neither visible in the HTML source, nor in the flash swf file.

I asked Juju before newsing here and he said it was ok.


Quote from: DJ_O on February 18, 2012, 10:58:31 pm
Also, I wonder how do we make a 81P program, assuming we have Windows 7 64 bits? I'm curious because in 2008 I made a TI-81 port of Illusiat 1, which uses all 37 available program slots and the entire user RAM.

It would be great to have your Illusiat 1 port run in the TI-81 emulator.
Would clearly be the best game run in a TI-81 emulator ever! :P

You need to download the old TI-81 PC simulator and use it with VirtualBox.
Just type your program in the imulator, and then choose 'export' in the tools menu.
This will generate a 81P file.

842
News / Re: Revival of the TI-81
« on: February 20, 2012, 05:59:47 am »
The dumping starts at the horizontal cursor position, uses the whole scren and scroll line by line.

So the horizontal blank lines shouldn't be a problem.

843
News / Re: Revival of the TI-81
« on: February 19, 2012, 06:25:35 am »
Quote from: Juju on February 19, 2012, 12:48:34 am
Yeah this is pretty awesome indeed. Glad to see more calcs integrated in WabbitEmu.

Quote from: AzNg0d1030 on February 18, 2012, 10:38:34 pm
Wow, someone actually managed to get all this!

I'm still sad that no one seems to know about the rom version "V2.00"
Everyone knows "V2.0V" But not mine XD

Unknown version? You should send it for examination to someone who is able to dump the ROM.


I've sent you a PM AzNg0d1030.

Yes, TI-81 ROMs are quite hard to dump as there is no link port.
You need to type a huge assembly program by hand without any error and use some trick to make the TI-81 launch it. This will output the ROM content on the screen.
Then you need to record the screen for something like 30mins with a cam, and use some OCR on the video.


I've allready made the video (although I didn't perform the ocr step myself) for both ROMs 1.1K and 1.6K.

The community has now dumped 1.1K, 1.6K, 1.8K, and V2.0V.

With your report, we can extend the list of existing undumped ROMs to:
1.0, 1.1, 1.5K, 1.6V, V2.00

And as far as I can say, for some reason those are rare ROMs.


If you own such a TI-81, I think the best way would be to send it to me for some weeks.
I've allready been sent severall prototype/rare calculators by various TI community members and by the Datamath museum without any problem.

I'm ok to pay for the shipping cost.


It might seem unimportant to you, but if you have an undumped TI-81 version, you might be holding in your hands one of the last working TI-81 with that version in the world.
So if we don't dump it now,we might loose it forever.


Thanks for your report.

844
News / Revival of the TI-81
« on: February 18, 2012, 03:30:56 pm »
TI-81 enthusiasts, it's the great day for you! ;D





The TI-81 was the first TI graphing calculator, released in 1990.

With the TI-80, they were the last non-Nspire graphing calculators to be "opened" for dumping, emulation and assembly support.

Like the TI-80, the TI-81 didn't have a link port, so you had to type all programs by hand.


Moreover, the first TI-81 produced in 1990-1991 didn't even include the backup Lithium battery.
So you had to replace batteries before they were too low, one by one, and quickly.


The last TI-81 produced in 1995 and running the V2.0V ROM were using a different PCB: a TI-82 PCB (model which had just been released at that time) with lower capacity RAM/ROM chips and with all the linking electronics removed.


(on the left one of the last TI-81 with ROM V2.0V from 1996 - on the right, one of the first TI-82 from 1994)

Knowing that, I developped a trick, which let you emulate the TI-81 V2.0V with a TI-82 emulator by just concatenating severall copies of the ROM.

The problem is that this emulation was not accurate. You couldn't install the Unity kernel and run assembly programs.

We needed a true TI-81 emulator.

TilEm source code has been including TI-81 emulation for 2 years, but no updated binaries were ever released. You had to compile by yourself...





And now comes the good news.

On TI-Planet, we have added an online TI-81 emulator based on the above trick.
But more than that, its makes the impossible possible!
You can load programs although the real hardware doesn't have a link port.
We just hot-write the programs in RAM, which is not complicated at all as the TI-81 has fixed offsets and no VAT.


You can launch it from each TI-81 program available on TI-Planet.

It will be available for every TI-81 program you upload to TI-Planet, if you use the official 81P file format which is very similar with the 82P/83P format (severall 81P DOS tools were distributed by TI to use with their old PC/Mac TI-81 simulator).





But there's another good news for TI-81 enthusiasts!  ;D

I've contacted WabbitEmu's author, and now you get a new WabbitEmu with TI-81 support! :)


So unlike the above emulator, this time, in theory, it's possible to install the Unity kernel.
But, as the TI-81 does not have a link port, you can not sent 81P programs for now...



Sources:
http://tiplanet.org/forum/viewtopic.php?t=8776
http://tiplanet.org/forum/viewtopic.php?p=120899#p120899

Links:
http://tiplanet.org/forum/archives_voir.php?id=3950&play=1&mode=81
http://wabbit.codeplex.com/releases/view/44625

845
News / Re: Native Lua Extensions thanks to the latest Ndless update !
« on: February 17, 2012, 05:14:40 am »
Quote from: DJ_O on February 16, 2012, 06:37:57 pm
Btw you should really put download links to this in the downloads section here, even if it redirects to TI-Planet. It would still be easy to keep up to date, but also give the program more visibility. :)


We cannot redirect directly to the TI-Planet file download script, only to the TI-Planet file description page on which you can click the download button.

Indeed, we had to add a protection key for the TI-Planet downloads, as some site was trying to directly link our download script as if it was their own files ( = without mentionning us ).


Like the watermarks on our images, again, were are very sad having to do that.

846
News / mViewer adds PNG support for all TI-Nspire!
« on: February 16, 2012, 09:35:27 am »
Today, you get the new mViewer CX 3.0, which adds compatibility with all TI-Nspire! ;D
Meaning that you can now view PNG and BMP images on both color and monochrome Nspire.

PNG support was enhanced and file associations ".png.tns" and ".bmp.tns" are now supported.


Enjoy!






Download:
http://tiplanet.org/forum/archives_voir.php?id=3900

Cross-posted from:
http://tiplanet.org/forum/viewtopic.php?t=8799

847
News / Re: Protect your TI-Nspire startup with ZLock
« on: February 14, 2012, 06:58:44 pm »
Quote from: DJ_O on February 14, 2012, 02:38:56 pm
In the worst case scenario, are there any way for someone forgetting his password to unlock his calc, or does it remain locked down forever?

Yes: maintenance menu -> complete reformat -> reinstall OS

848
News / Protect your TI-Nspire startup with ZLock
« on: February 14, 2012, 06:39:49 am »
Do you want to keep your secrets in your Nspire? Why not adding a boot password to it?



It's now possible with ZLock from Levak.

ZLock makes use of the latest Ndless 3.1 feature and adds a password on boot. Note that it doesn't protect your Nspire if it is just turned off then on - only when it's (re)booting.



ZLock uses a hidden config file which cannot be altered or removed with the OS. And if anybody tries to brute-force your password, they will get an additional 10s delay after three wrong tries.



Download today, and be sure to read the ReadMe! ;)
http://tiplanet.org/forum/archives_voir.php?id=3959


Cross-posted from TI-Planet: http://tiplanet.org/forum/viewtopic.php?f=43&t=8786

849
General Calculator Help / Re: TI-Nspire Restart Loop
« on: February 13, 2012, 05:35:12 am »
Quote from: Adrenaline on February 13, 2012, 05:26:35 am
I've tried to take the battery back out and put it back in, but it doesn't work. It still gets to the screen with the clock icon and restarts again. When I pressed the key combination it says,
"Please replace the battery and try again. Press any button to power off."

Yes, the maintenance menu doesn't start if your batteries are too low.

850
nDoom / Re: nDoom - BETA!
« on: February 12, 2012, 09:06:56 pm »
Quote from: Grovert11 on February 12, 2012, 11:27:23 am
Quote from: critor on February 12, 2012, 11:02:20 am
Does it reboot immediatly when launching nDoom?
Or, can you see something on the screen before it does reboot?

You're the 1st and only one to report such a problem.
First I see black screen with white bars in the lower half of the screen, then it crashes.
Maybe it's because I'm using Ndless 3?

Did you download nDoom 2 and not nDoom 1 ?

What does happen if you open "doom1.wad" instead of "ndoom" ?

851
nDoom / Re: nDoom - BETA!
« on: February 12, 2012, 11:02:20 am »
Does it reboot immediatly when launching nDoom?
Or, can you see something on the screen before it does reboot?

You're the 1st and only one to report such a problem.

852
News / Re: Ndless 3.1 adds support for file associations
« on: February 06, 2012, 12:07:51 pm »
nDoom has just been updated with file associations! :)
You'll need to manually add the "ext.wad=ndoom" line to your "ndless.cfg.tns" file for now.




French news:
http://tiplanet.org/forum/viewtopic.php?p=120405#p120405

Download:
http://tiplanet.org/forum/archives_voir.php?id=3889

853
News / Re: Earliest TI-Nspire prototype discovery
« on: February 05, 2012, 06:52:19 pm »
The external Nspire case coming with the TI-Phoenix 1 development board is allmost entirely empty: it only includes the keypad which seems to be linked to the main board with an old IDE cable.








New photos linked from the TI-Planet news:
http://tiplanet.org/forum/viewtopic.php?t=8744

854
News / Re: Ndless 3.1 adds support for file associations
« on: February 05, 2012, 03:31:14 pm »
Quote from: calc84maniac on February 05, 2012, 03:20:50 pm
Alternatively, I could make a single executable that works on all 3 models (which would be the 3 programs appended together with hardware checks to select which binary to run). As long as nobody minds the tripled program size, that is.

Great idea! :)

855
News / Re: Ndless 3.1 adds support for file associations
« on: February 05, 2012, 03:19:59 pm »
Quote from: calc84maniac on February 05, 2012, 03:11:02 pm
Hmm, I also wonder how I'll handle file associations for gbc4nspire, which has 3 different versions with different program names (gbc4click, gbc4touch, gbc4cx)

You could also give the same name to the 3 versions, and put them in your archive in subfolders .

I think it would be easier than having to give updated config files for 3 different models. (as for now, those config files have to come with Ndless, and in theory with all programs which would require an additional line)

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