Re: Toll Booth and junk (was Re(fcc): TI-H: Radio/In...)
[Prev][Next][Index][Thread]
Re: Toll Booth and junk (was Re(fcc): TI-H: Radio/In...)
You do have a list of files somewhere, there is an allocation table at the
end/beginning of the drive (opposite of where the data starts). The file
system i'm proposing is really VERY, VERY simple to understand, and
implement, and doesn't require defragging: ever.
-- Jon Olson
-----Original Message-----
From: David Knaack <dknaack@hotmail.com>
To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
Date: Thursday, November 05, 1998 6:41 PM
Subject: Re: Toll Booth and junk (was Re(fcc): TI-H: Radio/In...)
>
>>From: "Jon Olson" <morph@jmss.com>
>>No no no, use a bit map...that way you don't have to keep checking
>sector
>>after sector, or even fat entry after fat entry to find a free
>one...one
>>sector can hold info for 4096 sectors (1 bit per sector).
>
>Sure, but it makes defragmentation much more complex,
>and requires maintaining chain pointers to other bits
>of the file. I agree that a chained system is more
>useful for large systems with frequently changing files
>(frequently = many times a day), but the player just
>doesn't need that kind of system.
>
>Also makes it a pain in the ass to get a list of all
>the files in the system if you don't have a list of
>files somewhere (who wants to search the whole drive
>surface looking for start chains), and if you have
>a file list somewhere, why not just store all the
>info there and leave the files in one piece?
>
>DK
>
>______________________________________________________
>Get Your Private, Free Email at http://www.hotmail.com
>
Follow-Ups: