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Author Topic: New HP Prime firmware release 2015.0427 (revision 7820)  (Read 5198 times)

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Offline DJ Omnimaga

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New HP Prime firmware release 2015.0427 (revision 7820)
« on: May 14, 2015, 05:25:17 am »
HP has now released a new firmware revision for the HP Prime calculator: version 2015.0427 (revision 7820). It features the following improvements, as stated by Tim Wessman on HP Museum:

Quote
Better horizontal and vertical pinch zoom functionality.
Better statistics calculations and functionality.
Touch screen curve sketching and automatic recognition of curve type and equation fitting.
Improved help throughout the system.
Quality and reliability improvements.
Better support for USB 3.0 system update connectivity.

(click to show/hide)

If your connectivity kit doesn't detect any update for some reasons, you can download it on their FTP folder at "ftp.hp.com/pub/calculators/Prime/". Make sure to backup any data (such as school programs, your CW contest entry and/or other projects) from your HP Prime emulator and calculators beforehand, just in case.

Source: http://www.hpmuseum.org/forum/thread-3823.html
« Last Edit: May 14, 2015, 05:27:18 am by DJ Omnimaga »


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Offline Duke "Tape" Eiyeron

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TL;DR, did they released a C/C++ SDK?
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Offline Streetwalrus

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Still not I suppose. It's sad. Someone donate one to me already so that I can hack it. :P
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Offline Lionel Debroux

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Like the Nspire, the Prime is tailored for school and exam testing usage. HP devs will have the duty to close arbitrary native code execution holes in the standard OS, Cyrille de Brébisson was on public record about that. HP will simply not release a native code SDK for the Prime...

However, the Prime remains a far more open calculator than the Nspire is, because as proven by critor and I, we can flash arbitrary OS onto it. So far, I'm the only person who took advantage of that capability, using standard C/C++ tooling targeting the ARM ISA, in a bare-metal, freestanding environment. That's a real shame.
Nobody bested my man-day of work on that PoC (which means both Proof of Concept and Piece of Crap here). I get to criticize my own work as much as I want, and I can safely state that in absolute terms, what I did thoroughly sucks, though in relative terms, it's the only program of its kind on that platform :)

For over a year and a half, we've all known what needs to be done with leveraging the Prime's power for our own purposes. However, nobody does it, due to lack of time and low user base, which raises lack of interest in the platform.
« Last Edit: May 14, 2015, 11:54:04 am by Lionel Debroux »
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Offline Streetwalrus

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Yeah it's a real shame. I'd love to play around with it. I have some experience with bare metal arm, the soc is heavily documented so it shouldn't be a big issue besides getting the hardware (I don't have that much money).
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Offline DJ Omnimaga

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Like the Nspire, the Prime is tailored for school and exam testing usage. HP devs will have the duty to close arbitrary native code execution holes in the standard OS, Cyrille de Brébisson was on public record about that. HP will simply not release a native code SDK for the Prime...

However, the Prime remains a far more open calculator than the Nspire is, because as proven by critor and I, we can flash arbitrary OS onto it. So far, I'm the only person who took advantage of that capability, using standard C/C++ tooling targeting the ARM ISA, in a bare-metal, freestanding environment. That's a real shame.
Nobody bested my man-day of work on that PoC (which means both Proof of Concept and Piece of Crap here). I get to criticize my own work as much as I want, and I can safely state that in absolute terms, what I did thoroughly sucks, though in relative terms, it's the only program of its kind on that platform :)

For over a year and a half, we've all known what needs to be done with leveraging the Prime's power for our own purposes. However, nobody does it, due to lack of time and low user base, which raises lack of interest in the platform.
Yeah it's a shame that not more people are interested in hacking the calc. On the other hand, there are probably some people who think hacking it is useless because of how powerful HP PPL is. Just look at how smooth Mineprime smoothscrolling is.

I personally am not as upset that HP locked the HP Prime down than I was with the TI-Nspire, because they at least did the effort to give us a good alternative. TI took 4 years before finally doing it and while Lua has improved a lot since then, it still has some annoying limitations that can hinder speed considerably.
« Last Edit: May 14, 2015, 04:21:05 pm by DJ Omnimaga »
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Offline Streetwalrus

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That's true, but low level languages aren't only a matter of speed. :P Asm can be pretty fun to mess with, even on ARM.
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Offline DJ Omnimaga

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Yeah true. However, seeing how few hardcore ASM coders there are on Z80 calcs compared to BASIC/Axe programmers and how much smaller the HP Prime programming fanbase is compared to TI-z80's, I bet that there are probably like 3 or 4 people who are really interested in hacking the HP Prime and maybe not even one of them have the time to do it.
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Offline alexgt

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Hacking would be cool but I don't want HP to lock it down like the NSpire. And \/
Yeah it's a shame that not more people are interested in hacking the calc. On the other hand, there are probably some people who think hacking it is useless because of how powerful HP PPL is. Just look at how smooth Mineprime smoothscrolling is.
To put that is perspective about MinePrime I display two GROBs that are each 1600x800 in size 16 times to do the smooth scrolling. Sadly I tried using a 320x240 GROB but copying to it was too slow :(.

EDIT: To say the truth if there were exploits out I would definitely use them :P
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Offline DJ Omnimaga

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Aah I see. Lua cannot use such GROB IIRC so you have to redraw the map parts shown on the screen frame by frame, one tile by one. But even in HP PPL doing this would be faster than Lua I think. I wish that they made a 400 MHz Nspire CX with 256 MB of Flash.
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Offline Snektron

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But isn't HPPPL compiled anyway? and since Lua is interperted you'd HPPPL to run faster anyway
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Offline DJ Omnimaga

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It is. I wish TI went such route.
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Offline Adriweb

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Having TI use LuaJIT would be a great step forward already.
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Offline DJ Omnimaga

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Also it would be nice if their Lua didn't remove many commands (although it's ok I guess if they have to remove some to respect exam regulations), so that people who learn Lua for computer programming have an easier time porting their programs to the calculator. Would LuaJIT automatically do that?
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Offline Streetwalrus

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EDIT: To say the truth if there were exploits out I would definitely use them :P
Well, there's no need for exploits on the prime. You can run arbitrary code just by replacing the OS, which the calculator isn't locked against at all unlike the Nspire. I already suggested a preloaded that can load either the OS or custom code, but since I do not own the calc I can't do it myself.
  • Calculators owned: TI-80, HP 40G, TI-84 Plus rev G (yay 128k RAM), TI-83 Plus Silver Edition (broken LCD), TI-82 Stats.fr (black), TI-Nspire CX rev C (yay Nlaunchy), TI-83+ SE ViewScreen

 


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