Re: A83: The 'VAT'


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Re: A83: The 'VAT'




On Sat, 25 Sep 1999 09:38:29 EDT, Jkhum98@aol.com wrote:

>In a message dated 9/25/99 2:20:15 AM Central Daylight Time,
>jimbob_v@hotmail.com writes:
>
> > One question: What is the "VAT" and what does it do? Thanks.
> >
> >  James Vernon
> >  jimbob_v@hotmail.com
>
>It is the "Variable Allocation Table" but i think this is a slang term type
>of thing, referring to the Symbol Table. It is a structure in Ram that 
>holds
>address and information for every Variable on the calc, so that the calc 
>can
>keep track of where everything is. The variable names, data type, and 
>pointer
>to where it is located, is kept in each variable "entry" on the table. By 
>the
>word Allocating, i guess it means that the vars are moved around by the OS
>frequently, or maybe this term VAT is used with the shells that move vars
>around (relocation) and need to keep track of where they originally go, 
>after
>the shell is done running an asm program. Again, im guessing on that... =P
>
>Jason_K

  Ok, thanks. I know everything about the symbol table, so that's fine.

James Vernon
jimbob_v@hotmail.com

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