Re: A89: help

Re: A89: help

• To: assembly-89@lists.ticalc.org
• Subject: Re: A89: help
• From: Nate Mueller <nlmueller@students.wisc.edu>
• Date: Tue, 22 Dec 1998 14:17:55 -0600
• Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
• In-Reply-To: <6c89ef8d.367ffd96@aol.com>
• Reply-To: assembly-89@lists.ticalc.org

>In a message dated 12/20/1998 6:30:49 PM Pacific Standard Time,
>assets@eden.rutgers.edu writes:
>
>> not true.  on the calcs that have asm support the program variable begins
>>  with a token to identify the program as asm
>>  how do you think the calc knows when it can and can't run a program using
>>  the asm( command?
>
>The TI-89 has a VAT (similar to a FAT on a hard drive).  The VAT has the name
>of all the files in the directory, the type, any special attributes, and the
>memory handle that each files has.  You can dereference this handle to access
>the file.  I don't know where the VAT for the main folder is stored, but I do
>know that every variable and program, except maybe system vars, is in the VAT.
>
>Daniel Imfeld

There is a good tutorial about the VAT at the doors site.  As far as I know
system variables aren't in the VAT -- though I wish they were.  If anyone
knows differently or where things like errornum are stored, I would sure
like to know.

	--Nate

• Re: A89: help
• From: Daniel7073@aol.com

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