me@lazilong.com (Lazarus I. Long) wrote in message news:<68a2ec1b.0111070922.7ea45f0a@posting.google.com>...
> Beneath Apple DOS doesn't say anything about 'em, really.  Anyone have
> a clue?
> 
> specifically, these are defined as:
> #define	Dos_FileType_S			((Dos_FileType)0x08)
> #define	Dos_FileType_R			((Dos_FileType)0x10)
> #define	Dos_FileType_a			((Dos_FileType)0x20)
> #define	Dos_FileType_b			((Dos_FileType)0x40)
> 
> I know what type "R" is, a relocateable asm file.  but what are the
> others?  Do they correspond at all to any known ProDOS file type?
> 
> -laz

According to this site (under the catalog command):

http://www.zip.com.au/~alexm/faq/comm.html

The meanings are -

A - AppleSoft BASIC programs
B - Binary image (machine language) files
I - Integer BASIC programs
T - Text files
R - Relocatable binary
S - Source
* - File is locked (protected from modification/deletion)


Here is quote from the GS/OS DOS 3.3 FST ERS, version 1.2, October 31,
1990:


FILETYPES
The following table lists the filetypes supported by DOS 3.3 and their
proposed equivalent GS/OS file types: (ascii table follows, fixed
width font)

DOS 3.3                        GS/OS Equivalent
text                           $04 TXT      ASCII text
integer basic                  $FA	int      integer BASIC
applesoft basic                $fc	bas      Applesoft program
binary                         $06	bin      general binary
S-type                         $00	–––      typeless file
relocatable object module      $FE	REL      EDASM reloc. code
A-type                         $00	–––      typeless file
B-type                         $00	–––      typeless file
E-type                         $EE          JAG	classic auto	

The typeless files have no defined function under DOS 3.3 and
therefore no GS/OS equivalent.

hope that helps.