TI-82 Early Hardware and ROM Versions

MyCalcs profile · by **CVSoft** » 07 Aug 2015, 08:42

I have found and purchased two TI-82s that have been documented but don't exist in my collection. The former has ROM 7*, which is undumped and, sadly, has missing rows on the screen; I will likely replace the LCD at the expense of originality if I am unable to repair it. The latter has ROM 15.0; Adriweb also owns one, but I didn't. I now have a (supposedly) complete collection of ROM versions from 4* to 16.0, except the elusive 11.0.
* CVSoft happy

ROM 7* supposedly supports Assembly via OS-82; I have my doubts due to the different ROM call table length, but after 15 years we can finally find out

.

→ **MyCalcs** profile · by **critor** » 10 Aug 2015, 09:18

Great.

Did you already receive the TI-82 with ROM 7* ?

Could you dump its ROM ?
It would be better to try this before attempting to repair the screen.

MyCalcs profile · by **CVSoft** » 10 Aug 2015, 17:21

critor wrote:Great.
Did you already receive the TI-82 with ROM 7* ?

Could you dump its ROM ?
It would be better to try this before attempting to repair the screen.

I'll have it in about eight hours from this posting, along with 15.0 so we can get PCB pictures of it.
* CVSoft bops Adriweb
Since these aren't TI-81s and we don't need the screens to dump the ROMs, I'll do all the ROM dumping and PCB imaging before messing around with the screen. I'll probably find a HW-'K' or other unspecial TI-82 to donate a screen.

[EDIT] I have both of them now. The screen damage to 7* isn't going away on its own. Preliminary tests of OS-82 show that the shell works but programs don't. 7* is very similar to 8.0. 7* is not affected by the Plot1( bug.

MyCalcs profile · by **CVSoft** » 19 Aug 2015, 03:41

I have purchased a TI-82 with ROM 9.0, another previously unknown ROM version. It was produced in June 1993, is of pre-'A' hardware revision, and has serial number 0623045. I estimate its arrival to be within this week.

→ **MyCalcs** profile · by **critor** » 19 Aug 2015, 17:19

Great, a new unknown TI-82 ROM !

Did the seller send you any picture of it ?

MyCalcs profile · by **CVSoft** » 19 Aug 2015, 18:57

critor wrote:Great, a new unknown TI-82 ROM !

Did the seller send you any picture of it ?

Nope, I forgot to ask

. It'll be here soon enough anyways, which will be around Friday or Monday. I just hope I don't find any more rare TI-82s in the meantime, I seem to have increased sellers' confidence in listing them over $20 x.x . TI-82s don't sell on eBay very often, so the numerous purchases made by myself and Adriweb have confused the market a bit. Sellers don't see the difference between the ROM versions, so all they see is a TI-82 selling for up to $42 within days of listing while their own $10 listing hasn't sold in months. I have noticed that some sellers now list the ROM version in their item descriptions

which saves me a bit of work in managing the TI-82 serial number database.

→ **MyCalcs** profile · by **Ti64CLi++** » 03 Dec 2015, 20:34

Hello, I have a Ti 82 Stats.
I look at the maintenance menu (mode, 2nd+ln) and I see 1.00001.
I seen the 1.00001 OS is not dumped so I contact you.
It is possible to dump this ROM?
Thank you in advance

→ **MyCalcs** profile · by **critor** » 03 Dec 2015, 20:38

Isn't it rather 1.10001 ?

It's a TI-83 (not Plus) compatible ROM.
You can dump it with TiLP.

→ **MyCalcs** profile · by **Ti64CLi++** » 03 Dec 2015, 21:01

C'est une ROM de TI 83?
Pourtant, elle est bleu, et il y a marqué TI 82 Stats.
Comment je peux la dumper, je n’ai pas le cable USB--->Jack 2,5mm ?
Et puis TILP ne marche pas sur mon ordi (j’ai Windows 7)