diff options
Diffstat (limited to 'Magdir/acorn')
| -rw-r--r-- | Magdir/acorn | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/Magdir/acorn b/Magdir/acorn new file mode 100644 index 0000000..5acb31e --- /dev/null +++ b/Magdir/acorn @@ -0,0 +1,67 @@ +#------------------------------------------------------------------------------ +# acorn: file(1) magic for files found on Acorn systems +# + +# RISC OS Chunk File Format +# From RISC OS Programmer's Reference Manual, Appendix D +# We guess the file type from the type of the first chunk. +0 lelong 0xc3cbc6c5 RISC OS Chunk data +>12 string OBJ_ \b, AOF object +>12 string LIB_ \b, ALF library + +# RISC OS AIF, contains "SWI OS_Exit" at offset 16. +16 lelong 0xef000011 RISC OS AIF executable + +# RISC OS Draw files +# From RISC OS Programmer's Reference Manual, Appendix E +0 string Draw RISC OS Draw file data + +# RISC OS new format font files +# From RISC OS Programmer's Reference Manual, Appendix E +0 string FONT\0 RISC OS outline font data, +>5 byte x version %d +0 string FONT\1 RISC OS 1bpp font data, +>5 byte x version %d +0 string FONT\4 RISC OS 4bpp font data +>5 byte x version %d + +# RISC OS Music files +# From RISC OS Programmer's Reference Manual, Appendix E +0 string Maestro\r RISC OS music file +>8 byte x version %d + +>8 byte x type %d + +# Digital Symphony data files +# From: Bernard Jungen (bern8817@euphonynet.be) +0 string \x02\x01\x13\x13\x13\x01\x0d\x10 Digital Symphony sound sample (RISC OS), +>8 byte x version %d, +>9 pstring x named "%s", +>(9.b+19) byte =0 8-bit logarithmic +>(9.b+19) byte =1 LZW-compressed linear +>(9.b+19) byte =2 8-bit linear signed +>(9.b+19) byte =3 16-bit linear signed +>(9.b+19) byte =4 SigmaDelta-compressed linear +>(9.b+19) byte =5 SigmaDelta-compressed logarithmic +>(9.b+19) byte >5 unknown format + +0 string \x02\x01\x13\x13\x14\x12\x01\x0b Digital Symphony song (RISC OS), +>8 byte x version %d, +>9 byte =1 1 voice, +>9 byte !1 %d voices, +>10 leshort =1 1 track, +>10 leshort !1 %d tracks, +>12 leshort =1 1 pattern +>12 leshort !1 %d patterns + +0 string \x02\x01\x13\x13\x10\x14\x12\x0e +>9 byte =0 Digital Symphony sequence (RISC OS), +>>8 byte x version %d, +>>10 byte =1 1 line, +>>10 byte !1 %d lines, +>>11 leshort =1 1 position +>>11 leshort !1 %d positions +>9 byte =1 Digital Symphony pattern data (RISC OS), +>>8 byte x version %d, +>>10 leshort =1 1 pattern +>>10 leshort !1 %d patterns |
