file/magic/Magdir/amigaos

#------------------------------------------------------------------------------
# $File: amigaos,v 1.23 2026/02/05 18:49:06 christos Exp $
# amigaos:  file(1) magic for AmigaOS binary formats:

#
# From ignatios@cs.uni-bonn.de (Ignatios Souvatzis)
#
0	belong		0x000003fa	AmigaOS shared library
0	belong		0x000003f3	AmigaOS loadseg()ble executable/binary
0	belong		0x000003e7	AmigaOS object/library data
#
0	beshort		0xe310		Amiga Workbench
>2	beshort		1
>>48	byte		1		disk icon
>>48	byte		2		drawer icon
>>48	byte		3		tool icon
>>48	byte		4		project icon
>>48	byte		5		garbage icon
>>48	byte		6		device icon
>>48	byte		7		kickstart icon
>>48	byte		8		workbench application icon
>2	beshort		>1		icon, vers. %d
#
# various sound formats from the Amiga
# G=F6tz Waschk <waschk@informatik.uni-rostock.de>
#
0	string		FC14		Future Composer 1.4 Module sound file
0	string		SMOD		Future Composer 1.3 Module sound file
0	string		AON4artofnoise	Art Of Noise Module sound file
1	string		MUGICIAN/SOFTEYES Mugician Module sound file
58	string		SIDMON\ II\ -\ THE	Sidmon 2.0 Module sound file
0	string		Synth4.0	Synthesis Module sound file
0	string		ARP.		The Holy Noise Module sound file
0	string		BeEp\0		JamCracker Module sound file
0	string		COSO\0		Hippel-COSO Module sound file
# Too simple (short, pure ASCII, deep), MPi
#26	string		V.3		Brian Postma's Soundmon Module sound file v3
#26	string		V.2		Brian Postma's Soundmon Module sound file v2

# The following are from: "Stefan A. Haubenthal" <polluks@web.de>
# Update:	Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/Amiga_bitmap_font
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/f/font-amiga.trid.xml
#		https://wiki.amigaos.net/wiki/Graphics_Library_and_Text
# fch_FileID=FCH_ID=0x0f00
0	beshort		0x0f00
# skip some AVM powerline firmware images by check for positive number of font elements
# https://download.avm.de/fritzpowerline/fritzpowerline-1000e-t/other/fritz.os/fritz.powerline_1000ET_01_05.image
>2	ubeshort	>0		AmigaOS bitmap font
#!:mime	application/octet-stream
!:mime	font/x-amiga-font
!:ext	font
# struct FontContents fch_FC; 1st fc_FileName [MAXFONTPATH=256]; ~ filename "/" fc_YSize
# like: topazb/6 suits/8  Excel/9e emerald/17 Franklin/23 DIAMONDS/60.8C
>>4	string		x		"%.256s"
# fc_YSize ~number after slash in fc_FileName; like: 6 7 8 9 11 12 16 17 21 23 45 60
>>260	beshort		x		\b, fc_YSize %u
# fch_NumEntries; number of FontContents elements like:
# 1 (often) 2 3 (IconCondensed.font tempfont.font) 4 (Franklin.font) 6 (mcoop.font)
>>2	ubeshort	>1		\b, %u elements
#>>2	beshort		x		\b, %u element
# plural s
#>>2	beshort		!1		\bs
# like: 6 7 8 9 11 12 16 17 21 23 45 60
#>>262	beshort		x		\b, FLAGS_STYLE
>>2	beshort		>1		\b, 2nd
# 2nd fc_FileName like: Franklin/36
>>>264	string		x		"%.256s"
>>2	beshort		>2		\b, 3rd
# 3rd fc_FileName like: Franklin/18
>>>524	string		x		"%.256s"
# URL:		http://fileformats.archiveteam.org/wiki/Amiga_bitmap_font
# Reference:	https://wiki.amigaos.net/wiki/Graphics_Library_and_Text
#		http://mark0.net/download/triddefs_xml.7z/defs/f/font-amiga-var2.trid.xml
# Note:		called by TrID "Amiga bitmap Font (var.2)"
# fch_FileID=TFCH_ID=0x0f02
0	beshort		0x0f02
# skip possible misidentified foo by check for positive number of font elements
>2	ubeshort	>0		AmigaOS bitmap font (TFCH)
#!:mime	application/octet-stream
!:mime	font/x-amiga-font
!:ext	font
# struct TFontContents fch_TFC[]; 1st tfc_FileName [254]; ~ filename "/" fc_YSize
# like: Abbey/45 XScript/75 XTriumvirate/45
>>4	string		x		"%.254s"
# tfc_TagCount; including the TAG_END tag like: 4
>>258	ubeshort	x		\b, tfc_TagCount %u
# tfc_YSize ~number after slash in tfc_FileName; like: 45 75
>>260	beshort		x		\b, tfc_YSize %u
# tfc_Style; tfc_Flags like: 8022h 8222h
#>>262	ubeshort	x		\b, FLAGS_STYLE %#x
# fch_NumEntries; number of FontContents elements like: 1 (abbey.font) 2 (xscript.font xtriumvirate.font)
>>2	ubeshort	>1		\b, %u elements
>>2	beshort		>1		\b, 2nd
# 2nd tfc_FileName like: XScript/45 XTriumvirate/30
>>>264	string		x		"%.254s"
0	beshort		0x0f03		AmigaOS outline font
0	belong		0x80001001	AmigaOS outline tag
0	string		##\ version	catalog translation
0	string		EMOD\0		Amiga E module
8	string		ECXM\0		ECX module
0	string/c	@database	AmigaGuide file

# Amiga disk types
#	display information like volume name of root block on Amiga (floppy) disk
0	name   	adf-rootblock
# block primary type = T_HEADER (value 2)
>0x000	ubelong		!2		\b, type %u
# header_key; unused in rootblock (value 0)
>0x004	ubelong		!0		\b, header_key %u
# high_seq; unused (value 0)
>0x008	ubelong		!0		\b, high_seq %u
# ht_size; hash table size; 0x48 for flopies
>0x00c	ubelong		!0x48		\b, hash table size %#x
# bm_flag; bitmap flag, -1 means VALID
>0x138	belong		!-1		\b, bitmap flag %#x
# bm_ext; first bitmap extension block (Hard disks only)
>0x1A0	ubelong		!0		\b, bitmap extension block %#x
# name_len; volume name length; diskname[30]; volume name
>0x1B0	pstring		>\0		\b, "%s"
# first directory cache block for FFS; otherwise 0
>0x1F8	ubelong		!0		\b, directory cache block %#x
# block secondary type = ST_ROOT (value 1)
>0x1FC	ubelong		!1		\b, sec_type %#x
#
0	string		RDSK		Rigid Disk Block
>160	string		x		on %.24s
# URL:		http://fileformats.archiveteam.org/wiki/ADF_(Amiga)
#		https://en.wikipedia.org/wiki/Amiga_Fast_File_System
# Reference:	http://lclevy.free.fr/adflib/adf_info.html
# Update:	Joerg Jenderek
# Note:		created by ADFOpus.exe
# 		and verified by `unadf -l TURBO_SILVER_SV.ADF`
0	string		DOS
# skip DOS Client Message Files like IPXODI.MSG DOSRQSTR.MSG
>3	ubyte		<8		Amiga
# https://reposcope.com/mimetype/application/x-amiga-disk-format
!:mime	application/x-amiga-disk-format
!:ext	adf
>>3	ubyte		0		DOS disk
>>3	ubyte		1		FFS disk
>>3	ubyte		2		Inter DOS disk
>>3	ubyte		3		Inter FFS disk
# For Fastdir mode the international mode is also enabled,
>>3	ubyte		4		Fastdir DOS disk
>>3	ubyte		5		Fastdir FFS dis
# called by TrID "Amiga Disk image File (OFS+INTL+DIRC)"
>>3	ubyte		6		Inter Fastdir DOS disk
# called by TrID "Amiga Disk image File (FFS+INTL+DIRC)"
>>3	ubyte		7		Inter Fastdir FFS disk
# but according to Wikipedia variants with long name support
#>>3	ubyte		6		long name DOS disk
#>>3	ubyte		7		long name FFS disk
# DOES NOT only work! Partly for file size  ~< FILE_BYTES_MAX=1 MiB defined in ../../src/file.h
#>>-0		offset	x		\b, %lld bytes
# Correct file size, but next lines are NOT executed
#>>-0		offset	901120		(DD 880 KiB floppy)
# 880 KiB Double Density floppy disk by characteristic hash table size 0x48 and T_HEADER=2
>>0x6E00C	ubelong	0x48
>>>0x6E000	ubelong	2		(DD 880 KiB)
# 1760 KiB High Density floppy disk (1802240 bytes) by characteristic hash table size 0x48
>>0xDC00C	ubelong	0x48
>>>0xDC000	ubelong	2		(HD 1760 KiB)
# Chksum; special block checksum like: 0 0x44ccf4c0 0x51f32cac 0xe33d0e7d ...
#>>4	ubelong		x		\b, CRC %#x
# Rootblock: 0 880 (often for DD and HD) 1146049280 (IMAGINE_1_0_DISK_01.ADF TURBO_SILVER_SV.ADF)
>>8	ubelong		>0		\b, probably root block %d
# bootblock code
>>12	quad		!0		\b, bootable
# assembler instructions: lea exp(pc),a1; moveq 25h,d0; jsr -552(a6)
>>>12	ubequad	=0x43fa003e70254eae	AmigaDOS 3.0
>>>12	default	x
>>>>12	ubequad	!0x43fa003e70254eae	%#llx..
# 880 KiB Double Density floppy disk (901120 bytes)
>>0x6E00C	ubelong	0x48
>>>0x6E000	ubelong	2
>>>>0x6E000	use			adf-rootblock
# 1760 KiB High Density floppy disk (1802240 bytes)
>>0xDC00C	ubelong	0x48
>>>0xDC000	ubelong	2
>>>>0xDC000	use			adf-rootblock
# 1 MiB hard disc by test for T_HEADER=2 and header_key=0=high_seq 
>>0x80000	ubelong	2
>>>0x80004	quad	0
>>>>0x80000	use			adf-rootblock
# 2 MiB hard disc; only works if in ../../src/file.h FILE_BYTES_MAX is raised to 2 MiB 
#>>0x100000	ubelong	x		2 MiB TEST
#>>0x100000	ubelong	2		\b, 2 MiB hard disc rootblock
#>>>0x100000	use			adf-rootblock
0	string		KICK		Kickstart disk

# From: Alex Beregszaszi <alex@fsn.hu>
0	string		LZX		LZX compressed archive (Amiga)

# From: Przemek Kramarczyk <pkramarczyk@gmail.com>
0	string/c	.key		AmigaDOS script

# AMOS Basic file formats
# https://www.exotica.org.uk/wiki/AMOS_file_formats
0	string		AMOS\040Basic\040 	AMOS Basic source code
>11	byte		=0x56 			\b, tested
>11	byte		=0x76 			\b, untested
0 	string		AMOS\040Pro		AMOS Basic source code
>11	byte		=0x56 			\b, tested
>11	byte		=0x76 			\b, untested
0	string		AmSp			AMOS Basic sprite bank
>4	beshort		x			\b, %d sprites
0	string		AmIc			AMOS Basic icon bank
>4	beshort		x			\b, %d icons
0	string		AmBk			AMOS Basic memory bank
>4	beshort		x			\b, bank number %d
>8	belong&0xFFFFFFF	x		\b, length %d
>12	regex		.{8}			\b, type %s
0	string		AmBs			AMOS Basic memory banks
>4	beshort		x			\b, %d banks


# https://github.com/alb42/Leu/blob/master/TCDReaderUnit.pas
3	string		TURBOCALC		TurboCalc spreadsheet