2 #------------------------------------------------------------------------------
3 # iff: file(1) magic for Interchange File Format (see also "audio" & "images")
5 # Daniel Quinlan (quinlan@yggdrasil.com) -- IFF was designed by Electronic
6 # Arts for file interchange. It has also been used by Apple, SGI, and
7 # especially Commodore-Amiga.
9 # IFF files begin with an 8 byte FORM header, followed by a 4 character
10 # FORM type, which is followed by the first chunk in the FORM.
12 0 string FORM IFF data
13 #>4 belong x \b, FORM is %d bytes long
15 >8 string AIFF \b, AIFF audio
16 >8 string AIFC \b, AIFF-C compressed audio
17 >8 string 8SVX \b, 8SVX 8-bit sampled sound voice
18 >8 string SAMP \b, SAMP sampled audio
19 >8 string DTYP \b, DTYP datatype description
20 >8 string PTCH \b, PTCH binary patch
22 >8 string ILBMBMHD \b, ILBM interleaved image
23 >>20 beshort x \b, %d x
25 >8 string RGBN \b, RGBN 12-bit RGB image
26 >8 string RGB8 \b, RGB8 24-bit RGB image
27 >8 string DR2D \b, DR2D 2-D object
28 >8 string TDDD \b, TDDD 3-D rendering
30 >8 string FTXT \b, FTXT formatted text
31 >8 string CTLG \b, CTLG message catalog
32 >8 string PREF \b, PREF preferences
34 # These go at the end of the iff rules
36 # I don't see why these might collide with anything else.
38 # Interactive Fiction related formats
40 >8 string IFRS \b, Blorb Interactive Fiction
41 >>24 string Exec with executable chunk
42 >8 string IFZS \b, Z-machine or Glulx saved game file (Quetzal)