🚀 go-pugleaf

I recently purchased an Atari 1050 with DOS 3, and would like to convert
a program (Disk Tool: ANALOG Magazine #8,9) that allows you to read DOS 2
disk sectors directly.  However DOS 3 is much different in the layout of
sectors and information on the disk medium.

So far I've determined that:
1. sectors are grouped into blocks of 8
2. directory is at block 2 (sector 16)
3. each directory entry is 16 bytes long per file
   0 = Status, 1-8 = filename, 9-11 = extension,
   12 = size in blocks, 13 = start block (+3 sectors for boot/directory)
   14,15 = ??? (file size perhaps)
4. in status of directory bit 0 = file deleted, and bit 1 = file protected
5. no linking of sectors, everything is sequental in blocks, perhaps blocks
   are linked

Anyway the question is: does anyone have more information of the structure
used by DOS 3, what the bits in the Status and the last two bytes of a
directory entry means.  Also any other useful information would be appreciated.

					Thanks,
					Owen Alexander  !houxl!oaa