2002-09-16 05:54:26 +00:00
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#------------------------------------------------------------------------------
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# acorn: file(1) magic for files found on Acorn systems
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#
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# RISC OS Chunk File Format
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# From RISC OS Programmer's Reference Manual, Appendix D
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# We guess the file type from the type of the first chunk.
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0 lelong 0xc3cbc6c5 RISC OS Chunk data
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>12 string OBJ_ \b, AOF object
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>12 string LIB_ \b, ALF library
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# RISC OS AIF, contains "SWI OS_Exit" at offset 16.
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16 lelong 0xef000011 RISC OS AIF executable
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# RISC OS Draw files
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# From RISC OS Programmer's Reference Manual, Appendix E
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0 string Draw RISC OS Draw file data
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# RISC OS new format font files
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# From RISC OS Programmer's Reference Manual, Appendix E
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0 string FONT\0 RISC OS outline font data,
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>5 byte x version %d
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0 string FONT\1 RISC OS 1bpp font data,
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>5 byte x version %d
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0 string FONT\4 RISC OS 4bpp font data
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>5 byte x version %d
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# RISC OS Music files
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# From RISC OS Programmer's Reference Manual, Appendix E
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0 string Maestro\r RISC OS music file
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>8 byte x version %d
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2008-01-13 20:35:16 +00:00
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>8 byte x type %d
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# Digital Symphony data files
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# From: Bernard Jungen (bern8817@euphonynet.be)
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0 string \x02\x01\x13\x13\x13\x01\x0d\x10 Digital Symphony sound sample (RISC OS),
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>8 byte x version %d,
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>9 pstring x named "%s",
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>(9.b+19) byte =0 8-bit logarithmic
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>(9.b+19) byte =1 LZW-compressed linear
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>(9.b+19) byte =2 8-bit linear signed
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>(9.b+19) byte =3 16-bit linear signed
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>(9.b+19) byte =4 SigmaDelta-compressed linear
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>(9.b+19) byte =5 SigmaDelta-compressed logarithmic
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>(9.b+19) byte >5 unknown format
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0 string \x02\x01\x13\x13\x14\x12\x01\x0b Digital Symphony song (RISC OS),
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>8 byte x version %d,
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>9 byte =1 1 voice,
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>9 byte !1 %d voices,
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>10 leshort =1 1 track,
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>10 leshort !1 %d tracks,
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>12 leshort =1 1 pattern
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>12 leshort !1 %d patterns
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0 string \x02\x01\x13\x13\x10\x14\x12\x0e
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>9 byte =0 Digital Symphony sequence (RISC OS),
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>>8 byte x version %d,
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>>10 byte =1 1 line,
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>>10 byte !1 %d lines,
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>>11 leshort =1 1 position
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>>11 leshort !1 %d positions
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>9 byte =1 Digital Symphony pattern data (RISC OS),
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>>8 byte x version %d,
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>>10 leshort =1 1 pattern
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>>10 leshort !1 %d patterns
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