C compiler

[Sukiari]

(09-13-2015 02:06 AM)webmasterpdx Wrote:  

(09-12-2015 07:19 PM)Tim Wessman Wrote:  They aren't wince dlls, nor anything to do with wince. It is fairly common however for asian manufacturers to copy names and organization to aid with familiarity of developers internally. A lot of the OS calls are named fairly similar to windows type calls even when they have slight differences or even outright missing behavior. It can honestly get a little annoying.


Nobody at HP can help in any way with breaking open the system. We have not done anything to prevent it and hope that if/when someone does - PLEASE STAY AWAY FROM ANYTHING THAT MESSES WITH THE EXAM MODE (lights, memory, etc). If people start being able to break the exam mode things then we'll have to start screwing with stuff frequently to try and lock things down. Nobody wants that.

On wince....gotcha!

I'm not trying to break open the system. I'm trying to run C code that runs totally indepndently. The only thing the code will do is access the screen for graphics and access a preassigned matrix for input data and another for output results. HP PPL code will then transfer the results to the internal structures using existing interfaces.

I just need to know how to run C code from PPL and pass in a pointer to the input and output matrix. I've suggested that I can pass in the machine code in a third initialized matrix. Then if HP can provide a way whereby I can then run code stored in this matrix?

You provide this, you'll simply have the best math engine out there.

Exam mode would never be touched.

You do know that most customers for this product are NOT kids doing school exams....right? For that TI calculators are more accepted. This is for people that actually use math in their day to day jobs (e.g. I'm an engineer).
I wish calculator manufacturers would stop thinking that exams are the only use for calculators....

Until I get the C code capability, my preferred calculator will be Mathstudio running on android. I'd like to change that to HP Prime....but y'all won't help in that endevour...

Think about it.

Any method that can be used to run assembly or C code can be used to break the OS, and therefore screw with exam mode. I'm sure that it will be done eventually, by somebody, and the Prime will then be able to run any software the user desires, toggle the light, present an apparently "clean" calculator which can be switched on for inspection (think of the old boss key that some games had in the 80s and 90s) and so forth.

HP will then have to shift its software development focus to defeating its own user community like TI does. Does TI introduce updates for its existing calculators that fix bugs and expand features? Not at the rate HP does, because they're busy trying to keep the kids from running Super Mario Brothers and cheating on their tests. TI probably has a larger calculator division than HP and it seems that fighting the user community is taking up most of their time and to little avail.

Then again, if there comes a time that HP's calculator improvements have slowed or eventually stop, perhaps even despite existing bugs as in the cases of the 50g and the 39gii, "breaking" the OS might be in the overall interest of the user community after all.