Simple question: Is BASIC programming for the TI-89 and TI-92+ forwards/backwards compatible (other than screen size)?

No it isn't.

I had a lot of troubles as I wanted to use a simple ROM 1.00 program on the 1.01 on my TI92 Plus
same thing goes for 1.05

TI 89 and 92p doesn't return same result for same functions...

Who says no one has a 92+? I do! I had my mommy take back the 89 she got me just to get one. I am the envy of all students at my college! MWA HA HA.

To the point: who actually got v2.03? I didn't. I don't really care for it. Why not stick with what works for most of the programs? Like we really use it for math anyway. (Okay, so I do sometimes...)

But does it answer the most important question: Can it handle grayscale?
I WANT MY GRAYSCALE! I got a recent 92+ (last September), so I'm left out. This is an issue that needs to be of greater addressing.

You watch Red Green by any chance?

Hehhh.. Duct Tape...

After I bombed a math test because my ti-89 couldn't find correlation values, I decided do downgrade to ams 2.03 for the statistics application. Too bad I can't figure out how to do it with that either :(
Alot of stuff actually works now for AMS 2.03, It's just annoying to have to type in launch("pheonix"). I wish someone would make a shell for it. I know someone is going to tell me to do it myself, but with so many talented programmers, why do I need to learn???

shell project already started...
ask kernel's author

I think that Tezxas 2.0 will be compatible with AMS 2.03 on TI-92 Plus. Then TI-92 Plus users will have so much games and other programs to try all of them to the end of life.

Is that going to be a grayscale version? Are you ever going to write a new version for TI89? (with grayscale and save) I would love it.

Yes, will be grayscale, with optional nongrayscale modes, tape emulation (bit limited in this version, but enough to play multilevel games or save state in Elite), compatible with AMS 2.03, and file size will be 35 K instead 80 K. These features will be available on both TI89 and TI92+.

TI92+ version will use advantage of bigger screen and QWERTY keyboard.

There will be one drawback compared with release 1.1, due to introduction of grayscale, RAM requirement is now 153 K. For that reason snapshot saving is not yet implemented until I learn something more about accessing to archive memory.
The programs are finished, I have yet to write manuals.

It is released at
www.void.demon.com/spectrum.html

I'm porting DoorsOS so that it will work on all current ROM versions. However, most programs will need to be recompiled for them to work on all versions. But if the programmers take the time to recompile & update, then we will have everything just like before !!
(Except the grayscales on Hardware Version 2.00 which is still not fixed :-(( )

Yeaaaaa! None of this launch() stuff. Thank you Xavier.

~ferich

No, there will probably be a launcher..
But you'll also be able to run progs trough Doors Explorer :)

Please base the kernel on DoorsOS version 1.0, not DoorsOS version 1.0 final beta 2. The reason is that I have had bad experience with DoorsOS version 1.0 final beta 2. Version 1.0 however is great.

heyall no.....I hope Xavier makes it much better than Doors Explorer final beta 2. More advanced, more options, and havin it detect automatically to launch programs greater than 8k. Thanks Xavier ;D
ps-you have any idea as to when it will be released?
-poison

I’m studying it and six of us uses ti92+ hw2.0 ams2.03
and one uses ti89+ hw1.0
and we are a little sad that no asm progs
work on our system

or do you know any progs or shells that play well

and I’m searching for any way to compile c sources
to my ti92+
any idea about that??

look at doors.ticalc.org and download TIGCC, I think it works for 1.0x AMS versions

The TI-92 rocks. The 89 is a cheap rip off, and in any case have you noticed that 89 < 92? I'ma go play with my old TI-99.
Peace,
Shane

haha. Your statement was oxymoronic. cheap ripoff.

well some people still need to go to school / take the SAT

haha. You're a dumbass. He meant that the 89 is a rip-off of the 92 Plus, and cheaper.

The 89 isn't a "rip-off" of the 92 plus - they were written at the same time. The 89 os is derived from the 92 os but is much better. The 89 has many advantages such as being accepted on AP and SAT tests, and cheaper. If you want a bigger screen get a 92 plus otherwise the 89 is better.

Nick Chaves

Anyways... A company cannot rip itself off, and the price decrase is GOOD, not bad. I _like_ to have money. Does anyone else? A bigger screen just makes it harder to carry around and easier to get noticed. If I wanted to spend $300 (Not much of a difference from $200) I could get a pentium laptop. (Maybe 65 - 80 mhz faster than a 92.)

Woah! I thought noone else on this earth had a ti-99 but me. Just goes to show you...
And we need to work on hardware version 2 and fix that bug, no games work. We really need to concentrate on this. (Because I have it.) Ever noticed how greedy people are on this site? 'Will that be ported to my calc' 'Please port this to my calc' Which reminds me...How many people are working on the ti-82? The games can be unstable if you put them together in certain ways. And noone seems to have one or care or be working on it. Ti messed up when they made SO MANY diffrent calcs, there is no standard. Just my opinions.

And one more thing i forgot to put... I wouldn't trade my ti 89 for a 92+ if i had the chance. The ti 92 isnt allowed at our school, and isnt allowed on certain big tests. (act?sat?) Also, there are many repeat buttons(2 enter buttons?) and I like being able to put the 89 in my pocket and take it with me everywhere, making it hard to steal. The screen size and qwerty keyboard arent worth the extra money, unless youre trying to buy a laptop on a budjet.

I think its dumb to get the 92+(unless you can type and/or you like more/bigger graphics) now, but some peoplegot a 92 before 89 was out, and (like my previous post says) it was easier to get $35 for a module than $150 for a new calc. Also, hasnt the 89 been banned from the ACT and SAT? I believe on of the the rules says no calculators that can factor(or something like that) can be used on them.

The rules read like this for calculator usage:
SAT:
No Computers (QWERTY keyboards). i.e. No 92 or 92+

ACT:
No CAS's (Computer Algebra Systems). i.e. No 89, 92, OR 92+.

Just thought I'd get you all straight. And anyway, my math teacher almost didn't let me use my 89, so there is no way she would let me use a 92 or 92+! Anyone making a decision right now between 89 or 92+, go with 89. It has better support, better (well, not better, but more) games, cheaper, and you are more likely to be able to use it.

Also allowed on AP tests (at least Calculus, I am not _sure_ on the others--statistics, physics, etc.--but pretty sure)

Nick Chaves

Just think of that big Keyboard !
This is one of the reasons why I have the biggest cheats of my class...
TI92Plus may also be higher overclocked...

My overclcoked 92 runs twice faster without crashing than the 246% speed of my friend's overclocked 89 ! Over 247% his TI89's ROM is unstable: it doesn't understand 1+1 (really: it says "syntax error")
but I didn't know that overclcok stuff as I bought my 92+, the 89 was out since a couple of weeks or so and nobody knew about that in my school. We have 17 92s (10 with plus module) and 12 89s (and two HP49 huhu)

As a sole 92 Plus owner, I would feel natural inclination to be biased towards the TI 92+; and I do. For the most part, the 92+ is the "ultimate" if you really want to show off. As a matter of fact, when I first took it to school last month... I was almost embarrased by all the attention it got, the whole class literally passed it around to look at it. My Calculus teacher caught me using it for a test, and he took it away. :/ But he'd done the same with an 89... only it would be harder for him to spot an 89 :P Also, I would like to carry my 92+ in my pocket, but that is just darned impossible. But that doesn't mean I'd prefer the 89. Holding the huge, heavy 92+ in your hands gives you a much more "macho" feel. Heh. Oh and those who claim that you can't use it on the SAT... big deal it's not like you need it! None of the problems on the SAT go beyond Algebra 1 and Geometry level.

~Manny

Actually, my dad gave me a TI-99 about ten years ago for no logical reason. It's sitting up in my attic right now, no doubt freezing from this awful Chicago weather *g*. One of these days, I should dig it up and mess around with it... if it's still working.

--BlueCalx