xref: /freebsd/contrib/file/magic/Magdir/c64 (revision ae316d1d1cffd71ab7751f94e10118777a88e027)

#------------------------------------------------------------------------------
# $File: c64,v 1.16 2024/03/07 22:30:21 christos Exp $
# c64:  file(1) magic for various commodore 64 related files
#
# From: Dirk Jagdmann <doj@cubic.org>

0x16500	belong		0x12014100	D64 Image
0x16500	belong		0x12014180	D71 Image
0x61800 belong		0x28034400	D81 Image
0	belong		0x43154164	X64 Image

# C64 (and other CBM) cartridges
# Extended by David Korth <gerbilsoft@gerbilsoft.com>
# Update:	Joerg Jenderek
# Reference: https://vice-emu.sourceforge.io/vice_17.html#SEC391
#		http://ist.uwaterloo.ca/~schepers/formats/CRT.TTX
#		http://mark0.net/download/triddefs_xml.7z/defs/c/crt-c64.trid.xml
# Note:		called "C64 Cartridge image" by TrID and
#		"CRT C64 Cartridge Image Format" by DROID via PUID fmt/822

0	string		C64\40CARTRIDGE
# skip DROID fmt-822-signature-id-1179.crt with missing packet length
>0x44	ubelong		>0x10
>>0	use		c64-crt
#	display Commodore 64 cartridge information
0	name		c64-crt
>0	string		x		Commodore 64 cartridge
#!:mime	application/octet-stream
!:mime	application/x-commodore-crt
!:ext	crt
#		http://mark0.net/download/triddefs_xml.7z/defs/c/car-ccs64.trid.xml
#!:ext	crt/car
>0x20	ubyte	0	\b,
>0x20	ubyte	!0
# 32-byte null padded cartridge name like: "BUGS BUNNY" "CART64" "EasyFlash" "FINAL CARTRIDGE" "Magic Desk" "VICE CART"
>>0x20	string/T	x	\b: "%.32s",
# cartridge hardware type
>0x16	beshort	0
# cartridge port EXROM line status
>>0x18	beshort	0x0000	16 KB game
>>0x18	beshort	0x0001	8 KB game
>>0x18	beshort	0x0100	UltiMax mode
>>0x18	beshort	0x0101	RAM/disabled
>0x16	beshort	1	Action Replay
>0x16	beshort	2	KCS Power Cartridge
>0x16	beshort	3	Final Cartridge III
>0x16	beshort	4	Simons' BASIC
>0x16	beshort	5	Ocean type 1
>0x16	beshort	6	Expert Cartridge
>0x16	beshort	7	Fun Play, Power Play
>0x16	beshort	8	Super Games
>0x16	beshort	9	Atomic Power
>0x16	beshort	10	Epyx Fastload
>0x16	beshort	11	Westermann Learning
>0x16	beshort	12	Rex Utility
>0x16	beshort	13	Final Cartridge I
>0x16	beshort	14	Magic Formel
>0x16	beshort	15	C64 Game System, System 3
>0x16	beshort	16	Warp Speed
>0x16	beshort	17	Dinamic
>0x16	beshort	18	Zaxxon / Super Zaxxon (Sega)
>0x16	beshort	19	Magic Desk, Domark, HES Australia
>0x16	beshort	20	Super Snapshot V5
>0x16	beshort	21	Comal-80
>0x16	beshort	22	Structured BASIC
>0x16	beshort	23	Ross
>0x16	beshort	24	Dela EP64
>0x16	beshort	25	Dela EP7x8
>0x16	beshort	26	Dela EP256
>0x16	beshort	27	Rex EP256
>0x16	beshort	28	Mikro Assembler
>0x16	beshort	29	Final Cartridge Plus
>0x16	beshort	30	Action Replay 4
>0x16	beshort	31	Stardos
>0x16	beshort	32	EasyFlash
>0x16	beshort	33	EasyFlash Xbank
>0x16	beshort	34	Capture
>0x16	beshort	35	Action Replay 3
>0x16	beshort	36
# cartridge Hardware Revision/Subtype (usually 0) (added in v1.01)
>>0x1A	ubyte	1	Nordic Replay
>>0x1A	ubyte	!1	Retro Replay
>0x16	beshort	37	MMC64
>0x16	beshort	38	MMC Replay
>0x16	beshort	39	IDE64
>0x16	beshort	40	Super Snapshot V4
>0x16	beshort	41	IEEE-488
>0x16	beshort	42	Game Killer
>0x16	beshort	43	Prophet64
>0x16	beshort	44	EXOS
>0x16	beshort	45	Freeze Frame
>0x16	beshort	46	Freeze Machine
>0x16	beshort	47	Snapshot64
>0x16	beshort	48	Super Explode V5.0
>0x16	beshort	49	Magic Voice
>0x16	beshort	50	Action Replay 2
>0x16	beshort	51	MACH 5
>0x16	beshort	52	Diashow-Maker
>0x16	beshort	53	Pagefox
>0x16	beshort	54	Kingsoft
>0x16	beshort	55	Silverrock 128K Cartridge
>0x16	beshort	56	Formel 64
>0x16	beshort	57
>>0x1A	ubyte	1	Hucky
>>0x1A	ubyte	!1	RGCD
>0x16	beshort	58	RR-Net MK3
>0x16	beshort	59	EasyCalc
>0x16	beshort	60	GMod2
>0x16	beshort	61	MAX Basic
>0x16	beshort	62	GMod3
>0x16	beshort	63	ZIPP-CODE 48
>0x16	beshort	64	Blackbox V8
>0x16	beshort	65	Blackbox V3
>0x16	beshort	66	Blackbox V4
>0x16	beshort	67	REX RAM-Floppy
>0x16	beshort	68	BIS-Plus
>0x16	beshort	69	SD-BOX
>0x16	beshort	70	MultiMAX
>0x16	beshort	71	Blackbox V9
>0x16	beshort	72	Lt. Kernal Host Adaptor
>0x16	beshort	73	RAMLink
>0x16	beshort	74	H.E.R.O.
>0x16	beshort	75	IEEE Flash! 64
>0x16	beshort	76	Turtle Graphics II
>0x16	beshort	77	Freeze Frame MK2
>0x16	beshort	78	Partner 64
# cartridge hardware type: (0-78)
>0x16	ubeshort >78	unknown type %#x
# Cartridge Hardware Revision/Subtype (usually 0 added in v1.01)
>>0x1A	ubyte	>0	revision %#x
# padded with 3 space characters for CRT but for CCS64 Cartridge (*.CAR) maybe different according to TrID
>14	ubeshort	!0x2020	\b, at 14 %#x
# file header length like: 20h (reported wrong) 40h (default and minimum)
>0x10	ubelong	!0x40	\b, header length %#x
# cartridge version like: 1.0 1.1 (adds CRT sub type/hardware revision) 2.0 (introduces VIC20, PLUS4, C128, CBM2)
>0x14	ubeshort	!0x0100
>>0x14	ubyte		x	\b, version %u
>>0x15	ubyte		x	\b.%u
# cartridge content start with ROM signature which must be CHIP
>0x40	ubelong	!0x43484950	\b, invalid ROM signature
>>0x40	string	x		"%0.4s"
# total packet length (length of ROM image size and header combined) like: 2010h 4010h
>0x44	ubelong	x	\b, packet length %#x

0	string		C128\40CARTRIDGE	Commodore 128 cartridge
>0x20	ubyte	0	\b,
>0x20	ubyte	!0
>>0x20	string/T	x	\b: "%.32s",
>0x16	beshort	0	generic cartridge
>0x16	beshort	1	Warpspeed128
>>0x1A	ubyte	1	\b, REU support
>>0x1A	ubyte	2	\b, REU support, with I/O and ROM banking

0	string		CBM2\40CARTRIDGE	Commodore CBM-II cartridge
>0x20	ubyte	!0
>>0x20	string/T	x	\b: "%.32s"

0	string		VIC20\40CARTRIDGE	Commodore VIC-20 cartridge
>0x20	ubyte	0	\b,
>0x20	ubyte	!0
>>0x20	string/T	x	\b: "%.32s",
>0x16	beshort	0	generic cartridge
>0x16	beshort	1	Mega-Cart
>0x16	beshort	2	Behr Bonz
>0x16	beshort	3	Vic Flash Plugin
>0x16	beshort	4	UltiMem
>0x16	beshort	5	Final Expansion

0	string		PLUS4\40CARTRIDGE	Commodore 16/Plus4 cartridge
>0x20	ubyte	!0
>>0x20	string/T	x	\b: "%.32s"


# DreamLoad archives see:
# https://www.lemon64.com/forum/viewtopic.php?t=37415\
# &sid=494dc2ca91289e05dadf80a7f8a968fe (at the bottom).
# https://www.c64-wiki.com/wiki/DreamLoad.
# Example HVSC Commodore 64 music collection:
# https://kohina.duckdns.org/HVSC/C64Music/10_Years_HVSC.dfi

0	byte	0
>1	string	DREAMLOAD\40FILE\40ARCHIVE
>>0x17	byte	0	DFI Image
>>>0x1a	leshort	x	version: %d.
>>>0x18	leshort	x	\b%d
>>>0x1c	lelong	x	tracks: %d

0	string		GCR-1541	GCR Image
>8	byte		x		version: %i
>9	byte		x		tracks: %i

9	string		PSUR		ARC archive (c64)
2	string		-LH1-		LHA archive (c64)

0	string		C64File		PC64 Emulator file
>8	string		>\0		"%s"
0	string		C64Image	PC64 Freezer Image

0	beshort		0x38CD		C64 PCLink Image
0	string		CBM\144\0\0	Power 64 C64 Emulator Snapshot

0	belong		0xFF424CFF	WRAptor packer (c64)

# URL:		http://fileformats.archiveteam.org/wiki/T64
# Reference:	http://ist.uwaterloo.ca/~schepers/formats/T64.TXT
#		https://vice-emu.sourceforge.io/vice_16.html#SEC394
#		https://www.infinite-loop.at/Power64/Documentation/Power64-ReadMe/AE-File_Formats.html
#		http://mark0.net/download/triddefs_xml.7z/defs/e/emu-t64.trid.xml
# Note:		called "Commodore 64 Tape container" by TrID, "T64 Tape Image Format" by DROID via PUID fmt/820 and
# 		"T64 tape Image" by ./c64,v 1.14
#		verified by command like `deark -m t64 -l -d2 Caitan_the_Demo.t64` and
#		`cbmconvert -v2 -t -D4 ironmanoffroad.d64 ironmanoffroad.t64`
# 32 byte signature starting like C64S\x20tape\x20file
# C64\x20tape\x20image\x20file\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0
# C64S\x20tape\x20image\x20file\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0\x0
0	string/b	C64
# skip raw Commodore TAPe by check for unsed areas (\0 filled) and valid low (40h+m*20h; m=0-FFffh) offset
>0x46	ubequad&0xFFff1F00C0ffFFff	0	Commodore Tape image
#!:mime	application/octet-stream
#!:mime	application/x-commodore-tape
!:ext	t64
# version like: 0100h (examples found) 0101h 0200h (no examples)
>>32	leshort		x		Version:%#x
#>>32	leshort		!0x0100		Version:%#x
# number of used directory entries like: 0 1 2 5
>>36	leshort		!0		Entries:%i
# tape container name, 24 characters (padded with 20h but with A0h for DirMaster created samples) like:
# ->ZYRON'S PD<- IMAGETAPE MY-T64-TEST\240\240\240 OPERATIONWOLF+3-711.T64
>>40	string/24/Tb	>\040		Name:%.24s
# MaxFiles; maximal directory entries like: 0 1 2 5 30 (=1Eh some emulators expect exactly this value) 31 32
>>34	uleshort	x		MaxFiles:%u
# 1st C64 filetype: 0~free 1~normal tape file 2~tape file with header 3~memory snapshot 4~tape block 5~digitized stream 6-255~reserved
>>0x40	ubyte		!1		\b, C64 file type %#x
# 1st start address or load address of first entry like: 0000 (empty|snapshot) 04a0h (ironmanoffroad.t64) 0801h (typically) 1201h (3501_quizmaster_program_s1.t64)
>>0x42	uleshort	!0x0801		\b, load address %#4.4x
# 1st actual end address in memory
>>0x44	uleshort	x		\b, end address %#4.4x
# reserved; must be 0
>>0x26	ubeshort	!0		\b, at +0x26 %#x
# not used like: 0 (examples found and according to TrID)
>>0x46	ubeshort	!0		\b, at 0x46 %#4.4x
# not used like: 0 (examples found and according to TrID)
>>0x4c	ubelong		!0		\b, at 0x4C %#8.8x
# offset (=64+32*m) into 1st container file like: 0 (empty) 60h 80h E0h 400h 440h ...
>>0x48	ulelong		>0		\b, at %#x
# 1st filename (in PETASCII, padded with 20h, not A0h) like: "DRILLINSTR. /HTL" "WIZBALL+        " ...
>>>0x50	string/16/bT	x		"%0.16s"
# https://www.lyonlabs.org/commodore/onrequest/Inside_Commodore_Dos.pdf
# file type like: 0~Scratched 1~SEQunclosed 81h~SEQ 82h~PRG C2h~PRGlocked ...
>>>0x41	ubyte		x
>>>>0x41	ubyte	=0x00		Scratched type
>>>>0x41	ubyte	=0x01		SEQ unclosed type
#>>>>0x41	ubyte	=0x44		foo type
>>>>0x41	ubyte	=0x80		DEL type
>>>>0x41	ubyte	=0x81		SEQ type
>>>>0x41	ubyte	=0x82		PRG type
>>>>0x41	ubyte	=0x83		USR type
>>>>0x41	ubyte	=0x84		REL type
>>>>0x41	ubyte	=0xC2		PRG locked type
# other 	unusual file type
>>>>0x41	default	x
>>>>>0x41	ubyte	x		%#2.2x type
# inspect 1st entry content (often Commodore C64 BASIC program *.PRG) without load adress
#>>(0x48.l)	ubequad		x	\b, 1st data %16.16llx...

# Raw tape file format (.tap files)
# Esa Hyyti <esa@netlab.tkk.fi>
# Update:	Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/Tap_file
#		https://vice-emu.sourceforge.io/vice_16.html#SEC392
# Reference:	http://ist.uwaterloo.ca/~schepers/formats/TAP.TXT
# Note:		called "TAP (Commodore 64)" by DROID via PUID fmt/802
#		a variant starting with C16-TAPE-RAW should exist, but no examples found
0	string/b	C64-TAPE-RAW	Commodore raw Tape image (platform
#0	string		C64-TAPE-RAW	C64 Raw Tape File (.tap),
#!:mime	application/octet-stream
!:mime	application/x-commodore-tape
!:ext	tap
# According to TrID als raw suffix, but no such samples found
#!:ext	tap/raw
# computer platform like: 0~C64 1~VIC-20 2~C16 Plus/4 3~PET 4~C5x0 5~C6x0 C7x0
>0xD	ubyte		0		C64
>0xD	ubyte		1		VIC-20
>0xD	ubyte		2		C16 Plus/4
>0xD	ubyte		3		PET
>0xD	ubyte		4		C5x0
>0xD	ubyte		5		C6x0 C7x0
# this should not happen!
>0xD	ubyte		>5		%#2.2x
>0xD	ubyte		x		\b),
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/t/tap.trid.xml
#		http://mark0.net/download/triddefs_xml.7z/defs/t/tap-1.trid.xml
# Note:		called "C64 Tape image format" (v0-original) (v1-updated)" by TrID
# TAP version like: 0~OriginalLayout 1~Updated (often)
>0x0c	byte		x		Version:%u,
# file data size (not including header)
>0x10	lelong		x		Length:%u cycles
# video standard like: 0~PAL 1~NTSC 2~OLD NTSC 3~PALN
>0xE	ubyte		x    		\b, video
>0xE	ubyte		0		PAL
>0xE	ubyte		1		NTSC
>0xE	ubyte		2		old NTSC
>0xE	ubyte		3		PALN
# this should not happen!
>0xE	ubyte		>3		%#2.2x
# reserved for future expansion like: 0
>0xF	ubyte		!0		\b, at 0xF %#2.2x
# file data
#>014	ubequad		x		\b, data %16.16llx

# magic for Goattracker2, http://covertbitops.c64.org/
# from Alex Myczko <alex@aiei.ch>
0	string		GTS5		GoatTracker 2 song
>4	string		>\0		\b, "%s"
>36	string		>\0		\b by %s
>68	string		>\0		\b (C) %s
>100	byte		>0		\b, %u subsong(s)

# CBM BASIC (cc65 compiled)
# Summary:	binary executable or Basic program for Commodore C64 computers
# Update:	Joerg Jenderek
# URL:		http://fileformats.archiveteam.org/wiki/Commodore_BASIC_tokenized_file
# Reference:	https://www.c64-wiki.com/wiki/BASIC_token
#		https://github.com/thezerobit/bastext/blob/master/bastext.doc
#		http://mark0.net/download/triddefs_xml.7z/defs/p/prg-c64.trid.xml
# TODO:		unify Commodore BASIC/program sub routines
# Note:		"PUCrunch archive data" moved from ./archive and merged with c64-exe
0	leshort		0x0801
# display Commodore C64 BASIC program (strength=50) after "Lynx archive" (strength=330) handled by ./archive
#!:strength +0
# if first token is not SYS this implies BASIC program in most cases
>6		ubyte		!0x9e
# but sELF-ExTRACTING-zIP executable unzp6420.prg contains SYS token at end of second BASIC line (at 0x35)
>>23		search/30	\323ELF-E\330TRACTING-\332IP
>>>0		use		c64-exe
>>23		default		x
>>>0		use		c64-prg
# if first token is SYS this implies binary executable
>6		ubyte		=0x9e
>>0		use		c64-exe
# display information about C64 binary executable (memory address, line number, token)
0	name	c64-exe
>0		uleshort	x	Commodore C64
# http://a1bert.kapsi.fi/Dev/pucrunch/
# start address 0801h; next offset 080bh; BASIC line number is 239=00EFh; BASIC instruction is SYS 2061
# the above combination appartly also occur for other Commodore programs like: gunzip111.c64.prg
# and there exist PUCrunch archive for other machines like C16 with other magics
>0		string	\x01\x08\x0b\x08\xef\x00\x9e\x32\x30\x36\x31	program, probably PUCrunch archive data
!:mime	application/x-compress-pucrunch
!:ext	prg/pck
>0		string	!\x01\x08\x0b\x08\xef\x00\x9e\x32\x30\x36\x31	program
!:mime	application/x-commodore-exec
!:ext	prg/
# start address like: 801h
>0		uleshort	!0x0801	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x800)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# valid 2nd BASIC fragment found only in sELF-ExTRACTING-zIP executable unzp6420.prg
>>23		search/30	\323ELF-E\330TRACTING-\332IP
# jump again from beginning
>>>(2.s-0x800)	ubyte		x
>>>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# display information about tokenized C64 BASIC program (memory address, line number, token)
0	name	c64-prg
>0		uleshort	x	Commodore C64 BASIC program
!:mime	application/x-commodore-basic
# Tokenized BASIC programs were stored by Commodore as file type program "PRG" in separate field in directory structures.
# So file name can have no suffix like in saveroms; When transferring to other platforms, they are often saved with .prg extensions.
# BAS suffix is typically used for the BASIC source but also found in program pods.bas
!:ext	prg/bas/
# start address like: 801h
>0		uleshort	!0x0801	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x0800)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# 2nd BASIC fragment
>>&0		use		basic-line
# zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# Summary:	binary executable or Basic program for Commodore C128 computers
# URL:		https://en.wikipedia.org/wiki/Commodore_128
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/p/prg-c128.trid.xml
# From:		Joerg Jenderek
# Note:		Commodore 128 BASIC 7.0 variant; there exist varaints with different start addresses
0		leshort		0x1C01
!:strength	+1
# GRR: line above with strength 51 (50+1) is too generic because it matches SVr3 curses screen image, big-endian with strength (50) handled by ./terminfo
# probably skip SVr3 curses images with "invalid high" second line offset
>2		uleshort	<0x1D02
# skip foo with "invalid low" second line offset
>>2		uleshort	>0x1C06
# if first token is not SYS this implies BASIC program
>>>6		ubyte		!0x9e
>>>>0			use	c128-prg
# if first token is SYS this implies binary executable
>>>6		ubyte		=0x9e
>>>>0		use		c128-exe
# Summary:	binary executable or Basic program for Commodore C128 computers
# Note:		Commodore 128 BASIC 7.1 extension by Rick Simon
# start adress 132Dh
#0		leshort		0x132D	THIS_IS_C128_7.1
#>0			use	c128-prg
# Summary:	binary executable or Basic program for Commodore C128 computers
# Note:		Commodore 128 BASIC 7.0 saved with graphics mode enabled
# start adress 4001h
#0		leshort		0x4001	THIS_IS_C128_GRAPHIC
#>0			use	c128-prg
# display information about tokenized C128 BASIC program (memory address, line number, token)
0	name	c128-prg
>0		uleshort	x	Commodore C128 BASIC program
!:mime	application/x-commodore-basic
!:ext	prg
# start address like: 1C01h
>0		uleshort	!0x1C01	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x1C00)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# 2nd BASIC fragment
>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# display information about C128 program (memory address, line number, token)
0	name	c128-exe
>0		uleshort	x	Commodore C128 program
!:mime	application/x-commodore-exec
!:ext	prg/
# start address like: 1C01h
>0		uleshort	!0x1C01	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x1C00)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# no valid 2nd BASIC fragment in Commodore executables
#>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# Summary:	binary executable or Basic program for Commodore C16/VIC-20/Plus4 computers
# URL:		https://en.wikipedia.org/wiki/Commodore_Plus/4
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/p/prg-vic20.trid.xml
#		defs/p/prg-plus4.trid.xml
# From:		Joerg Jenderek
# Note:		there exist VIC-20 variants with different start address
# GRR: line below is too generic because it matches Novell LANalyzer capture
# with regular trace header record handled by ./sniffer
0		leshort		0x1001
# skip regular Novell LANalyzer capture (novell-2.tr1 novell-lanalyzer.tr1 novell-win10.tr1) with "invalid low" token value 54h
>6		ubyte		>0x7F
# skip regular Novell LANalyzer capture (novell-2.tr1 novell-lanalyzer.tr1 novell-win10.tr1) with "invalid low" second line offset 4Ch
#>>2		uleshort	>0x1006	OFFSET_NOT_TOO_LOW
# skip foo with "invalid high" second line offset but not for 0x123b (Minefield.prg)
#>>>2		uleshort	<0x1102	OFFSET_NOT_TOO_HIGH
# if first token is not SYS this implies BASIC program
>>6		ubyte		!0x9e
# valid second end of line separator implies BASIC program
>>>(2.s-0x1000)		ubyte	=0
>>>>0			use	c16-prg
# invalid second end of line separator !=0 implies binary executable like: Minefield.prg
>>>(2.s-0x1000)		ubyte	!0
>>>>0			use	c16-exe
# if first token is SYS this implies binary executable
>>6		ubyte		=0x9e
>>>0		use		c16-exe
# display information about C16 program (memory address, line number, token)
0	name	c16-exe
>0		uleshort	x	Commodore C16/VIC-20/Plus4 program
!:mime	application/x-commodore-exec
!:ext	prg/
# start address like: 1001h
>0		uleshort	!0x1001	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x1000)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# no valid 2nd BASIC fragment in excutables
#>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# display information about tokenized C16 BASIC program (memory address, line number, token)
0	name	c16-prg
>0		uleshort	x	Commodore C16/VIC-20/Plus4 BASIC program
!:mime	application/x-commodore-basic
!:ext	prg
# start address like: 1001h
>0		uleshort	!0x1001	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x1000)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# 2nd BASIC fragment
>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# Summary:	binary executable or Basic program for Commodore VIC-20 computer with 8K RAM expansion
# URL:		https://en.wikipedia.org/wiki/VIC-20
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/p/prg-vic20-8k.trid.xml
# From:		Joerg Jenderek
# Note:		Basic v2.0 with Basic v4.0 extension (VIC20); there exist VIC-20 variants with different start addresses
# start adress 1201h
0		leshort		0x1201
# if first token is not SYS this implies BASIC program
>6		ubyte		!0x9e
>>0		use		vic-prg
# if first token is SYS this implies binary executable
>6		ubyte		=0x9e
>>0		use		vic-exe
# display information about Commodore VIC-20 BASIC+8K program (memory address, line number, token)
0	name	vic-prg
>0		uleshort	x	Commodore VIC-20 +8K BASIC program
!:mime	application/x-commodore-basic
!:ext	prg
# start address like: 1201h
>0		uleshort	!0x1201	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x1200)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# 2nd BASIC fragment
>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# display information about Commodore VIC-20 +8K program (memory address, line number, token)
0	name	vic-exe
>0		uleshort	x	Commodore VIC-20 +8K program
!:mime	application/x-commodore-exec
!:ext	prg/
# start address like: 1201h
>0		uleshort	!0x1201	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x0400)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# no valid 2nd BASIC fragment in excutables
#>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# Summary:	binary executable or Basic program for Commodore PET computers
# URL:		https://en.wikipedia.org/wiki/Commodore_PET
# Reference:	http://mark0.net/download/triddefs_xml.7z/defs/p/prg-pet.trid.xml
# From:		Joerg Jenderek
# start adress 0401h
0		leshort		0x0401
!:strength	+1
# GRR: line above with strength 51 (50+1) is too generic because it matches TTComp archive data, ASCII, 1K dictionary
# (strength=48=50-2) handled by ./archive and shared library (strength=50) handled by ./ibm6000
# skip TTComp archive data, ASCII, 1K dictionary ttcomp-ascii-1k.bin with "invalid high" second line offset 4162h
>2		uleshort	<0x0502
# skip foo with "invalid low" second line offset
#>>2		uleshort	>0x0406	OFFSET_NOT_TOO_LOW
# skip bar with "invalid end of line"
#>>>(2.s-0x0400)	ubyte		=0	END_OF_LINE_OK
# if first token is not SYS this implies BASIC program
>>6		ubyte		!0x9e
>>>0		use		pet-prg
# if first token is SYS this implies binary executable
>>6		ubyte		=0x9e
>>>0		use		pet-exe
# display information about Commodore PET BASIC program (memory address, line number, token)
0	name	pet-prg
>0		uleshort	x	Commodore PET BASIC program
!:mime	application/x-commodore-basic
!:ext	prg
# start address like: 0401h
>0		uleshort	!0x0401	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x0400)	ubyte		x
# 2nd BASIC fragment
>>&0		use		basic-line
# zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# display information about Commodore PET program (memory address, line number, token)
0	name	pet-exe
>0		uleshort	x	Commodore PET program
!:mime	application/x-commodore-exec
!:ext	prg/
# start address like: 0401h
>0		uleshort	!0x0401	\b, start address %#4.4x
# 1st BASIC fragment
>2		use		basic-line
# jump to 1 byte before next BASIC fragment; this must be zero-byte marking the end of line
>(2.s-0x0400)	ubyte		x
>>&-1		ubyte		!0	\b, no EOL=%#x
# no valid 2nd BASIC fragment in excutables
#>>&0		use		basic-line
# Zero-byte marking the end of the BASIC line
>-3		ubyte		!0	\b, 3 last bytes %#2.2x
# Two zero-bytes in place of the pointer to next BASIC line indicates the end of the program
>>-2		ubeshort	x	\b%4.4x
# display information about tokenized BASIC line (memory address, line number, Token)
0	name	basic-line
# pointer to memory address of beginning of "next" BASIC line
# greater then previous offset but maximal 100h difference
>0		uleshort	x	\b, offset %#4.4x
# offset 0x0000 indicates the end of BASIC program; so bytes afterwards may be some other data
>0		uleshort	0
# not line number but first 2 data bytes
>>2		ubeshort	x	\b, data %#4.4x
# not token but next 2 data bytes
>>4		ubeshort	x	\b%4.4x
# not token arguments but next data bytes
>>6		ubequad		x 	\b%16.16llx
>>14		ubequad		x 	\b%16.16llx...
# like 0x0d20352020204c594e5820495820204259205749 "\r 5   LYNX IX  BY WILL CORLEY" for LyNX archive Darkon.lnx handled by ./archive
#>>3		string		x 	"%-0.30s"
>0		uleshort	>0
# BASIC line number with range from 0 to 65520; practice to increment numbers by some value (5, 10 or 100)
>>2		uleshort	x	\b, line %u
# https://www.c64-wiki.com/wiki/BASIC_token
# The "high-bit" bytes from #128-#254 stood for the various BASIC commands and mathematical operators
>>4		ubyte		x	\b, token (%#x)
# https://www.c64-wiki.com/wiki/REM
>>4		string		\x8f	REM
# remark string like: ** SYNTHESIZER BY RICOCHET **
>>>5		string		>\0	%s
#>>>>&1		uleshort	x	\b, NEXT OFFSET %#4.4x
# https://www.c64-wiki.com/wiki/PRINT
>>4		string		\x99	PRINT
# string like: "Hello world" "\021 \323ELF-E\330TRACTING-\332IP (64 ONLY)\016\231":\2362141
>>>5		string		x	%s
#>>>>&0		ubequad		x	AFTER_PRINT=%#16.16llx
# https://www.c64-wiki.com/wiki/POKE
>>4		string		\x97	POKE
# <Memory address>,<number>
>>>5		regex		\^[0-9,\040]+	%s
# BASIC command delimiter colon (:=3Ah)
>>>>&-2		ubyte		=0x3A
# after BASIC command delimiter colon remaining (<255) other tokenized BASIC commands
>>>>>&0		string		x		"%s"
# https://www.c64-wiki.com/wiki/SYS	0x9e=\236
>>4		string		\x9e	SYS
# SYS <Address> parameter is a 16-bit unsigned integer; in the range 0 - 65535
>>>5		regex		\^[0-9]{1,5}	%s
# maybe followed by spaces, "control-characters" or colon (:) followed by next commnds or in victracker.prg
# (\302(43)\252256\254\302(44)\25236) /T.L.R/
#>>>5		string		x	SYS_STRING="%s"
# https://www.c64-wiki.com/wiki/GOSUB
>>4		string		\x8d	GOSUB
# <line>
>>>5		string		>\0	%s