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Author Topic: Mem Clear for Singapore?  (Read 13278 times)

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Offline annoyingcalc

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Mem Clear for Singapore?
« on: June 11, 2011, 07:02:30 pm »
I turned on my calc 84+SE OS 2.53MP I was pressing randowm buttons and I got Clear Apps programs for Singapore ??? O.O

After trying more it was 2 and 8 hald them while calcis off turn it on while holding the and :crazy: Why is this???
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Offline JustCause

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Re: Mem Clear for Singapore?
« Reply #1 on: June 11, 2011, 07:23:06 pm »
I have absolutely no idea what you just said. Please clarify.
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Offline Darl181

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Re: Mem Clear for Singapore?
« Reply #2 on: June 11, 2011, 07:28:26 pm »
He did the key combo 8+2 while he turned on the calc.  What it does is disable/delete stuff, except for certain localization apps (language files, pretty much)
8+5+on does about the same.  [→]+[←]+on , too.

Correct me if I'm wrong, but iirc it's for teachers to keep people from cheating.  Or for a calc-literate person to be a complete jerk...

There's a patch to disable *some* of them at http://brandonw.net/calcstuff/patchptt.zip

EDIT: screenies, I'm guessing the first should look familiar...

EDIT2: anybody know what the diagnostic things are, btw?  only time i've ever used them (tokens at least) was in axe :P

EDIT3: ptt in 2.55 has more options...
« Last Edit: November 04, 2011, 09:39:44 pm by Darl181 »
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Offline ztrumpet

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Re: Mem Clear for Singapore?
« Reply #3 on: June 11, 2011, 10:43:35 pm »
Quote from: Darl181 on June 11, 2011, 07:28:26 pm
EDIT2: anybody know what the diagnostic things are, btw?  only time i've ever used them was in axe :P
Yeah, they have to do with using the various commands in the [Stat] [Right] menu, like LinReg and PwrReg.  It displays additional info when figuring out the formula to fit the data to.
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Offline Deep Toaster

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Re: Mem Clear for Singapore?
« Reply #4 on: June 11, 2011, 10:57:01 pm »
Quote from: Darl181 on June 11, 2011, 07:28:26 pm
He did the key combo 8+2 while he turned on the calc.  What it does is disable/delete stuff, except for certain localization apps (language files, pretty much)
8+5+on does about the same.  [→]+[←]+on , too.

Correct me if I'm wrong, but iirc it's for teachers to keep people from cheating.  Or for a calc-literate person to be a complete jerk...

8+2 is for Singapore because TI apparently has special rules there. 8+5 is for everyone else. Both of these combinations give you the option to delete all apps and programs (such as before a test), as in those 'shots Darl posted.

←+→ is completely different. It's a feature for teachers called Push-To-Test (still not sure why it's called that), which basically disables the APP and PRGM buttons, menus, and systems and locks a few other features, until a variable is sent through the link port. It's there to allow teachers to make sure students don't cheat on tests, but avoids the hassles of deleting all the files on the student's own calculator.

The really sucky thing is that PTT also deletes all your groups. There seems to be no real reason for that except that TI was too lazy to disable the GROUP menu and thought "What the heck, let's just get rid of them," so don't just don't run PTT unless you're testing it out for some reason.

EDIT: And yeah, run that patcher by BrandonW Darl linked to.
« Last Edit: June 11, 2011, 10:57:24 pm by Deep Thought »
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Offline Broseph Radson

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Re: Mem Clear for Singapore?
« Reply #5 on: June 11, 2011, 10:58:52 pm »
Man....TI is so strange...
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Offline Deep Toaster

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Re: Mem Clear for Singapore?
« Reply #6 on: June 11, 2011, 10:59:18 pm »
Teachers wanted a way to keep students from cheating, so there it is.
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Offline DJ Omnimaga

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Re: Mem Clear for Singapore?
« Reply #7 on: June 11, 2011, 11:28:09 pm »
I wonder what's the difference between regular program clears and singapore...
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Offline leafy

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Re: Mem Clear for Singapore?
« Reply #8 on: June 11, 2011, 11:51:24 pm »
They're the same. I think singapore is the code name for the OS.
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Offline Darl181

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Re: Mem Clear for Singapore?
« Reply #9 on: June 12, 2011, 12:04:20 am »
I always thought Singapore clear thing left a few language apps alone...
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Offline Deep Toaster

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Re: Mem Clear for Singapore?
« Reply #10 on: June 12, 2011, 12:04:35 am »
I think Singapore leaves localization (language) apps intact or something like that.

EDIT: Ninja'd.
« Last Edit: June 12, 2011, 12:04:47 am by Deep Thought »
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Offline Hayleia

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Re: Mem Clear for Singapore?
« Reply #11 on: June 13, 2011, 04:06:43 am »
I'm so useless that I just tried it. I can tell that it does clear all the mem (°-.-)  :'(.
« Last Edit: June 13, 2011, 04:06:58 am by Hayleia »
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Offline yunhua98

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Re: Mem Clear for Singapore?
« Reply #12 on: June 13, 2011, 06:13:34 am »
Press-to-Test: Press these puttons to take test.  :D
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Offline BrandonW

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Re: Mem Clear for Singapore?
« Reply #13 on: June 13, 2011, 06:18:31 am »
Quote from: leafiness0 on June 11, 2011, 11:51:24 pm
They're the same. I think singapore is the code name for the OS.

False. The codename for the 83+ series OS is "Cerberus." You can still see references to this in ti83plus.inc such as "new apps for Cerberus" (the new "external" applications (Flash applications)).

And as stated, the "Singapore" reset leaves a couple more Flash applications intact on reset.

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Offline Compynerd255

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Re: Mem Clear for Singapore?
« Reply #14 on: June 13, 2011, 10:47:38 am »
Quote from: Deep Thought on June 12, 2011, 12:04:35 am
I think Singapore leaves localization (language) apps intact or something like that.
It only checks their names. Nothing can stop us from renaming DoorsCS to Espanol. :D

Yeah, the PTT feature is kind of a stupid feature, although it lets paranoid teachers keep their kids on equal levels without destorying their memory. However, tests can be written so that it doesn't matter what the kids have on their calc.
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