[Idea] CAS built-in to Run-Mat mode

gbl08ma · Posted: 11 Jul 2012 06:47:59 pm Post subject:

And then? If the idea was to explain how Casio add-ins do it, here it is. They probably have an internal list with all the translations for every string, then they just have a Print_XY-like function on all the add-ins that checks the system language and selects the appropriate strings. Or alternatively, all the strings used in the Casio add-ins are already contained in the OS (very strange, almost impossible).
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AHelper · Posted: 11 Jul 2012 06:56:34 pm Post subject:

My theory: Casio put the conversion algorithms in an addin so that if a bug exists in the conversion rates or anything, they can just release a new addin rather than a new OS. The menu structure is part of the OS, so the addin doesn't control it.
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helder7 · Member Joined: 23 Dec 2011 Posts: 136

flyingfisch · Posted: 11 Jul 2012 08:27:13 pm Post subject:

gbl08ma · Posted: 12 Jul 2012 03:20:09 am Post subject:

You may have to hard-code strings into add-ins, because I don't believe Casio already planned strings like those found on Physium when they designed the OS... or was that one of the reasons the update to 1.03 was mandatory to use Physium (and 1.04 to use the new Geometry App)?

After checking the strings helder7 points, I believe the translations really need to be put into the OS. In other words, if we want translations in our own add-ins, we'll have to implement our own PrintXY_2 but with a list of strings for our add-in.
(this is pretty stupid - it means that at every add-in Casio develops, they'll have to release a new OS version in order to have translation...)

Another interesting strings I found (OS 1.03; 1.04 has updated language): http://tny.im/eu
The conclusion I take after analyzing these strings:
- Once upon a time, the OS was much more complete in terms of battery settings. You could select other battery types (Alkaline, Ni-MH, Manganese and "Chargeable"!), you could select the battery brand (what's the use for that, anyway?) and the battery capacity (probably for "chargeable" batteries). The calculator probably could charge the "chargeable" batteries as there are strings for that, as well as Function key icons.
- There may have been a password lock (for system "login", not for username protection)
- The add-ins store their translatable strings in the OS itself... except Physium (unless these are on really high indexes I didn't check).
- The last four strings seem to be from a (removed/hidden) Import/Export functionality.

I guess a separate topic for "Prizm OS curiosities" should be created, as well as some of this information should be copied to the wiki...

To relate this with the topic: I'm now more sure than ever that the Conversion functionality isn't in the add-in, but in the OS (also, the strings for the Conversion add-in appear way before then those for Picture Plot or Geometry, which probably indicates it was developed before these two).
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helder7 · Member Joined: 23 Dec 2011 Posts: 136

gbl08ma · Posted: 12 Jul 2012 06:56:41 am Post subject:

On OS version 1.04 the Portuguese translation changes a lot, and I'm not going to upgrade because I fear losing these "Manganese batteries" strings. Like I suspected Physium uses its own translation strings (adding strings to the OS for each element would take too much space).
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flyingfisch · Posted: 12 Jul 2012 09:16:27 am Post subject:

gbl08ma · Posted: 12 Jul 2012 09:30:06 am Post subject:

flyingfisch · Posted: 12 Jul 2012 09:31:33 am Post subject:

gbl08ma · Posted: 12 Jul 2012 09:35:56 am Post subject:

Not the public versions at least. I meant to say "once upon a time" as in "during development..."

Also, the fact that the Prizm can be powered and run perfectly fine just with USB power (in most situations it will refuse to, though. When you take off the batteries, the calc will think its batteries are so low it will shut down in a few seconds) may indicate it was originally designed to charge a special battery pack sold by Casio which they decided to never support.
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flyingfisch · Posted: 12 Jul 2012 11:45:21 am Post subject:

helder7 · Member Joined: 23 Dec 2011 Posts: 136

now, im shearching for strings in OS, i found today references to:

gbl08ma · Posted: 10 Aug 2012 07:57:09 am Post subject:

The OS has built-in compression and decompression features for g3p pictures, and there are syscalls related to that. If the OS has Gailly's library, then it's probably zlib, and it is used for g3p pictures (I see no other place in the OS where things are compressed). But zlib is also used for PNG...

If zlib really is in the OS and we manage to isolate it to a point where we can use it as if we included it ourselves in our add-ins, then developing a PNG-viewing add-in or a file archiving add-in will be easier.
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AHelper · Posted: 10 Aug 2012 05:45:08 pm Post subject:

KermMartian · Posted: 10 Aug 2012 10:23:15 pm Post subject:

lirkaren · Newbie Joined: 25 Jan 2012 Posts: 34 Location: Sweden

Is there any news about a cas for the Prizm? Smile

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KermMartian · Posted: 11 Oct 2012 08:52:29 am Post subject:

AHelper · Posted: 11 Oct 2012 10:33:30 am Post subject:

I'm already more than half way done with my quarter here, so I will have free time in 4 weeks to work on giac again, or just getting another OS on the Prizm that will fully support libc and libstdc++ (POSIX features as well) to support giac without modification.
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<BrandonW> "You don't even want to know what TI Connect does when it's just detecting your calculator...It ACTUALLY ERASES THE SWAP SECTOR on every communication attempt...EVERY SINGLE ATTEMPT...Yes, TI Connect will kill your calculator..What do I have to do to get your attention?!....Such a bloated protocol."