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Calculator Community => TI Calculators => General Calculator Help => Topic started by: Hot_Dog on December 13, 2010, 04:02:11 pm

Title: RAM area 8000h-8100h
Post by: Hot_Dog on December 13, 2010, 04:02:11 pm

I read that the area called appData (starting at $8000) is used during garbage collection.  Is there anything else the area is used for, or is it safe to use if variables are not archived/unarchived?

Title: Re: RAM area 8000h-8100h
Post by: calcdude84se on December 13, 2010, 06:52:59 pm

To my knowledge it is safe to use otherwise. thepenguin or Floppus will have to back me up on that, though :D

Title: Re: RAM area 8000h-8100h
Post by: Iambian on December 13, 2010, 08:15:40 pm

This RAM area (or around this RAM area) is used for archiving, as well. Anything that has to deal with unlocking Flash and dealing with it in some strange manner. Not sure what else this area is used for.

It might've been $8100...

Title: Re: RAM area 8000h-8100h
Post by: ztrumpet on December 13, 2010, 08:38:07 pm

Quote from: Iambian on December 13, 2010, 08:15:40 pm

This RAM area (or around this RAM area) is used for archiving, as well. Anything that has to deal with unlocking Flash and dealing with it in some strange manner. Not sure what else this area is used for.

The tempSwapArea is 323 bytes located at 82A5h and is used for archiving/unarchiving. :)

Title: Re: RAM area 8000h-8100h
Post by: FloppusMaximus on December 13, 2010, 10:05:38 pm

The appData area is also used for ONSCRPT/OFFSCRPT, so it may be overwritten when APD occurs.

Title: Re: RAM area 8000h-8100h
Post by: Hot_Dog on December 13, 2010, 10:15:46 pm

Quote from: FloppusMaximus on December 13, 2010, 10:05:38 pm

The appData area is also used for ONSCRPT/OFFSCRPT, so it may be overwritten when APD occurs.

Huh, I'll have to be on the lookout for that one