Thanks gang

Hello, I’m not sure if this has been posted already (I didn’t bother reading through all 7 pages of posts), but because this bug isn’t fixed, I’m pretty sure it hasn’t. I don’t know if somebody has experienced this bug before, but whatever.
Basically, the icon hook setting in ceashell 2.0 messes up probability simulator. It’s kind of complicated, but when I turn the setting on and launch probability simulator, part of the top bar with the icon gets erased. the different experiments have really weird quirks, I’ll probably explain them later. If anybody else has this glitch if they try it, then please add a new post here.


I have a ti84 plus ce python, with os 5.8.0 (it came with that preinstalled when I bought it sadly). Please try this out if you see it, I don’t know if it’s only icon hook that causes the glitch, or maybe it’s other apps or settings, but I know that icon hook will toggle the glitch for sure.

maybe it’s because my calculator is a python edition? I’m not sure. I might upload some pictures (if i find out how).


Edit: idk how to put an image on, I’m on my uncles iPhone right now, I think I need to upload it somewhere because it needs an url…


but basically I’m able to make there be 7 marble types in pick marbles by setting it to 5 types? And in adv settings the marble count for the extra 2 contains a semicolon. It’s as weird as it sounds. That was the image I was trying to upload, but random numbers experiment is even weirder. Please try it out.

Thanks for reporting this and I think you gave great information on what the bug is. We'll definitely be sure to test this out as soon as possible and hopefully get it fixed. In fact I already have an idea of what could possibly be going on at least with the status bar glitch.

so now im on my aunts phone which isnt even apple and im literally using wechat as a browser somehow idk if this post will even go thru

anyways, i made several discoveries about the prob sim glitch. it seemed.weirs, but its like really really weird. it doesnt like completely break the app and crash it (sometimes it does tho), it just makes the app do really weird things.

simple summary for those who dont want to read the rest (even tho u should):

u can make prob sim have 7 marble types, 4 dice, 4 coins, and 7 or 8 random numbers. also you can make prob sim just crash, it will say "memory error prob sim will exit now" or smth.

ok now the main part of the post
so basically with icon hook on, top bar will be covered a bit so the part of the icon and some of the words will disappear (sometimes randomly, sometimes only when you encounter a glitch).

so this is a more generic thing, if you select certain numbers for the setting that is below trial set (or the first setting if there is no trial set) it will add 2 to it. hard to explain, (and hard to type right now because this phone uses an abcdef not qwerty keyboard) but basically if you select 1 coin or die it will make you roll 3 even though the bar graph acts theres only 1, but you can visually see 3 coins or dice. selecting 2 gives 4, (visually only 3 coins tho), but 3 coins is normal.
also marble work the same way but only on some numbers. random numvers work the same way but 8 numbers freezes your calculator and you need to press reset button.

oh yeah also you can the memory error thing by making 4 20 side dice and rolling them hundreds of times. and the bars in thw bar graph will break into pieces literally.

oh yeah also saving data in corrupted experiments may instantly crash your calculator and reset ram or only do it when u try to read from list.

this is too annoying im gonna stop coreecting my typo

sot heres also a lpt more stu.f f. but i cant explain 。。 it lal because thittus is too hard uo type.

i mighr aed more later

Thanks for your help!

We were actually already able to correct this bug, and we'll be pushing it in the small bug fix version hopefully within the next few weeks.

For anyone curious, the odd behavior was mostly caused by conflicting use of appData by both our hook and the app.

More things:
* In mathprint mode with the edit archived programs hook active. The calculator RAM resets when I try to edit an archived program with a lot of mathprint on the screen (eg. a 16x16 matrix).
* In classic mode with the edit archived programs hook active. The cursor is in the wrong position after displaying a large (16x16) matrix, editing a program, and quitting to the home screen.
* Both classic and mathprint modes with the edit archived programs hook active. Error messages are printed to home screen in certain cases (eg. Break out of a “While 1:Disp 1:End” program and select quit).

There is a tool to downgrade your OS, I downgraded from 5.8.1 to 5.3.0. (It is Called "CERMASTR 2.0", it can only be found in a youtube video discription/comment, but i dont have the link to the video)

ok thanks for the help I’ll probably search for it


Edit: apparently the video doesn’t exist anymore

Both issues with the matrix have been fixed. It was a pretty obscure bug to track down, but we noticed that it seemed the main cause of the issue was when Ans would contain a value that could scroll. After a lot of messing around, we realized we needed to switch the order of ReleaseBuffer and NewContext0 to get it working.

The final issue is a result of trying to preserve the text on the screen after a program launches. We settled on clearing the screen if an error was triggered when exiting a program to TI-OS as a way to improve this.

Aside from correcting these issues, we've also added something to detect if a program has exited displaying something on the home screen when returning to CEaShell, to allow it to pause for a key so the user can read it without being immediately sent back into the shell.

All previously mentioned fixes have been published, along with the addition of showing file types in the TI-OS programs menu in place of a description if the file being selected does not have one:


Version 2.0.1 is available to download in both English and French from GitHub, Cemetech, and TI-Planet, and will be available on ticalc.org once the upload is approved.

If you're interested in the details of this update, feel free to check out the full changelog here!

If you already permanently borrowed the error handler what about a USB handler https://github.com/mateoconlechuga/cesium/blob/master/src/usb.asm