A83: Re: Re: Crashing Trouble
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A83: Re: Re: Crashing Trouble
> This leads me to the conclusion that the App names are read from each app
in
> Archive space each time the apps button is pressed
....Yes
> Perhaps there is a shadow VAT for archived programs in flash.
....Yes. Or sort of anyhow. There is VAT data stored in Flash, but it's
not a direct copy of the VAT as stored in RAM; the format is different. The
actual entries are the same (though in foward instead of reverse order), but
the data for the variable is directly after the "VAT" entry in Flash. The
Dev Guide actually has some information on this on pages 44-47.
After a RAM reset, and before intialization of RAM variables, VAT entries
are recreated in RAM for the archived variables. (This is why if you change
an attribute (ie. folder, protection, etc) of an archived program in the RAM
VAT, and your RAM is reset, it will go back to the attribute from when you
originally archived the program).
In some specific circumstances (which I don't currently know) the calculator
is reset in a fashion that forgoes recreating the variables, as you
mentioned (perhaps legacy code from the TI-83). If the calculator is
"normally" reset, it will recover these variables (or you could run the
archive recover program). I haven't tried, but a garbage collect would
probably also do the trick.
-Dan Englender
----- Original Message -----
From: "Hyperbyte" <central@hyperfield.com>
To: <assembly-83@lists.ticalc.org>
Sent: Wednesday, October 18, 2000 3:49 AM
Subject: A83: Re: Crashing Trouble
>
> In my case, I let the TI-83+ cool down for about 24 hrs, and nothing
worked, I didn't use the clear method, so...
> (it seems reading manuals would be a good thing to do after all)
>
> But back to your case, what rom version were you using?
> Did you have black dots appearing too?
>
>
> I understand that you archived some programs, the calc crashed, you lost
all of your archived programs, but not your flash app, you did a self-test,
and boom, all archived programs were back.
>
> This leads me to the conclusion that the App names are read from each app
in Archive space each time the apps button is pressed, hence the long time
to wait for all apps to appear if you have many apps. But the archived apps
have VAT entries (I knew that already), but when this vat is erased, there
is a way to retrieve the archived progs entries. Perhaps there is a shadow
VAT for archived programs in flash. But that shadow VAT would in that case
not be read until a clean reset is made. Which appearently was not the case
in your case.
>
>
> Anybody more ideas (or corrections to my assumtions)?
>
> Peter Martijn
>
> --------------------------------------------
> Chaos, just like windows, is just an alternative form of logic.
>
>
>
> On Tue, 17 October 2000, Mike K wrote:
>
> >
> >
> >
> >
> > I had a similar problem, but when i turned my ti83+ on it did an apd
(automatic power down) in like two seconds. I fixed this by taking out all
the batteries (including the little lithium
> > one), waiting a few hours, then putting them back in, turning my calc
on and pressing clear rapidly. At first it appeared that all my prgms were
gone except one app (mirage 0s) but when I
> > did the self test (mode alpha s) a few times, the last time i did it, i
let the #'s count to like 40. But any ways after the self test all my prgms
(that i had archived) were back!
> >
> >
> > ____________________________________________________________
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