file/magic/Magdir/spectrum

#------------------------------------------------------------------------------
# $File: spectrum,v 1.10 2023/05/08 01:33:36 christos Exp $
# spectrum:  file(1) magic for Spectrum emulator files.
#
# John Elliott <jce@seasip.demon.co.uk>

#
# Spectrum +3DOS header
#
0       string          PLUS3DOS\032    Spectrum +3 data
>15     byte            0               - BASIC program
>15     byte            1               - number array
>15     byte            2               - character array
>15     byte            3               - memory block
>>16    belong          0x001B0040      (screen)
>15     byte            4               - Tasword document
>15     string          TAPEFILE        - ZXT tapefile
#
# Tape file. This assumes the .TAP starts with a Spectrum-format header,
# which nearly all will.
#
# Update: Sanity-check string contents to be printable.
#  -Adam Buchbinder <adam.buchbinder@gmail.com>
# Update:	Joerg Jenderek 2023 May
# URL:		http://fileformats.archiveteam.org/wiki/TAP_(ZX_Spectrum)
# Reference:	http://web.archive.org/web/20110711141601/http://www.zxmodules.de/fileformats/tapformat.html
#		http://mark0.net/download/triddefs_xml.7z/defs/t/tap-zx.trid.xml
# Note:		called "ZX Spectrum Tape image" by TrID and "TAP (ZX Spectrum)" by DROID via PUID fmt/801
#		verified by fuse-emulator-utils `tzxlist EXAMPLES.TAP`
#
# headers length 19=023 and flag byte 0 indicating a standard ROM loading header 
0       string          \023\000\000
>4      string          >\0
# skip {85CEE8D6-0F90-4492-B484-98E38862B28D}.2.ver0x0000000000000004.db {DDF571F2-BE98-426D-8288-1A9A39C3FDA2}.2.ver0x0000000000000001.db
# inside c:\ProgramData\Microsoft\Windows\Caches according to TrID and DROID
>>23	ubyte		=0xFF
# skip DROID fmt-801-signature-id-1166.tap with invalid name \253\253\253\253\253\253\253\253\253\253
# which looks like: "TF COPY II" "screen    " "\023\001TF" "  1943    "
>>>4     string          <\177           Spectrum .TAP data "%-10.10s"
#!:mime	application/octet-stream
!:mime	application/x-spectrum-tap
!:ext	tap
>>>>3	byte		0	- BASIC program
# autostart line; 0..9999 are valid; 32768 means "no auto-loading"
>>>>>16	uleshort	x	\b, autostart line %u
# program length; length of BASIC program
>>>>>18	uleshort	x	\b, program length %u
>>>>3	byte		1	- number array
>>>>3	byte		2	- character array
>>>>3	byte		3	- memory block
# length of the following data 1B00h=6912 and start address 4000h=16384 in case of a SCREEN$ header
>>>>>14 belong          0x001B0040      (screen)
# unused 32768=8000h 
>>>>>18	uleshort	!32768	\b, unused %u
# zxlength; length of the following data after the header
>>>>14	uleshort	x	\b, data length %u
#>>14	uleshort	x	\b, data length %#x
# checksum byte; simply all bytes (including flag byte) XORed 
#>>>>20	ubyte		x	\b, checksum %#x

# The following three blocks are from pak21-spectrum@srcf.ucam.org
# TZX tape images
# Update:	Joerg Jenderek 2023 May
# URL:		http://fileformats.archiveteam.org/wiki/TZX
# Reference:	https://worldofspectrum.net/TZXformat.html
#		http://mark0.net/download/triddefs_xml.7z/defs/t/tzx.trid.xml
# Note:		called "ZX Spectrum Tape image" by TrID and "TZX Format" by DROID via PUID fmt/1000
0      string          ZXTape!\x1a     Spectrum .TZX data
#!:mime	application/octet-stream
!:mime	application/x-spectrum-tzx
# CDT is used for Amstrad tapes
!:ext	tzx/cdt
>8     byte            x               version %d
>9     byte            x               \b.%d
# ID of first block
>10	ubyte		x		\b; ID %#x
# turbo speed data block
>10	ubyte		=0x11		(turbo)
# length of PILOT tone (number of pulses) 
>>21	uleshort	x		\b, %u pilot pulses
# length of PILOT pulse
>>11	uleshort	x		with %u tstates
# length of SYNC first pulse
>>13	uleshort	x		\b, %u and
# length of SYNC second pulse
>>15	uleshort	x		%u sync tstates
# length of ZERO bit pulse
>>17	uleshort	x		\b, %u zero tstates
# length of ONE bit pulse
>>19	uleshort	x		\b, %u one tstates
# used bits in the last byte
>>23	ubyte		x		\b, use %u bit
# plural s
>>23	ubyte		>1		\bs
# pause after this block in milliseconds
>>24	uleshort	x		\b, %u ms pause
# BYTE[3]; length of data that follow
>>26	ulelong&0x00FFffFF x		\b, %u data bytes 
>10	ubyte		=0x20		(pause)
# pause duration in milliseconds
>>11	uleshort	x		%u ms
# text description
>10	ubyte		=0x30		(text)
# length of the text description
#>>11	ubyte		x		L=%u
>>11	pstring		x		"%s"
# archive text description in ASCII format
>10	ubyte		=0x32		(archive info)
# length of archive text
>>11	uleshort	x		\b, %#x bytes
# number of text strings
>>13	ubyte		x		with %u (type) text parts
# text type identification byte: 0~title 1~publisher 2~author 3~year 4~language 5~type 6~price 7~protection 8~origin ff~comment
>>14	byte		<9		(%d)
>>>14	byte		>-2
# length of text string
#>>>>15	ubyte		x		L=%u
>>>>15	pstring		x		%s
# 2nd possible text description
>>>>>&0	byte		<9		(%d)
>>>>>>&-1	byte	>-2
>>>>>>>&0	pstring	x		%s
# 3rd possible text description
>>>>>>>>&0	byte	<9		(%d)
>>>>>>>>>&-1	byte	>-2
>>>>>>>>>>&0	pstring	x		%s
# 4th possible text description
>>>>>>>>>>>&0	byte	<9		(%d)
>>>>>>>>>>>>&-1	byte	>-2
>>>>>>>>>>>>>&0	pstring	x		%s
# 5th possible text description
>>>>>>>>>>>>>>&0	byte	<9	(%d)
>>>>>>>>>>>>>>>&-1	byte	>-2
>>>>>>>>>>>>>>>>&0	pstring	x	%s
# 6th possible text description
>>>>>>>>>>>>>>>>>&0	byte	<9	(%d)
>>>>>>>>>>>>>>>>>>&-1	byte	>-2
>>>>>>>>>>>>>>>>>>>&0	pstring	x	%s
# 7th possible text description
>>>>>>>>>>>>>>>>>>>>&0	byte	<9	(%d)
>>>>>>>>>>>>>>>>>>>>>&-1 byte	>-2
>>>>>>>>>>>>>>>>>>>>>>&0 pstring x	%s

# RZX input recording files
0      string          RZX!            Spectrum .RZX data
>4     byte            x               version %d
>5     byte            x               \b.%d

# Floppy disk images
0      string          MV\ -\ CPCEMU\ Disk-Fil Amstrad/Spectrum .DSK data
0      string          MV\ -\ CPC\ format\ Dis Amstrad/Spectrum DU54 .DSK data
0      string          EXTENDED\ CPC\ DSK\ Fil Amstrad/Spectrum Extended .DSK data
0      string          SINCLAIR        Spectrum .SCL Betadisk image

# Hard disk images
0      string          RS-IDE\x1a      Spectrum .HDF hard disk image
>7     byte            x               \b, version %#02x

# SZX snapshots (fuse and spectaculator)
# Martin M. S. Pedersen <martin@linux.com>
# http://www.spectaculator.com/docs/zx-state/header.shtml
#
0      string		ZXST	       zx-state snapshot
>4     byte		x	       version %d
>5     byte		x	       \b.%d
>>6    byte		0	       16k ZX Spectrum
>>6    byte		1	       48k ZX Spectrum/ZX Spectrum+
>>6    byte		2	       ZX Spectrum 128
>>6    byte		3	       ZX Spectrum +2
>>6    byte		4	       ZX Spectrum +2A/+2B
>>6    byte		5	       ZX Spectrum +3
>>6    byte		6	       ZX Spectrum +3e
>>6    byte		7	       Pentagon 128
>>6    byte		8	       Timex Sinclair TC2048
>>6    byte		9	       Timex Sinclair TC2068
>>6    byte	       10	       Scorpion ZS-256
>>6    byte	       11	       ZX Spectrum SE
>>6    byte	       12	       Timex Sinclair TS2068
>>6    byte	       13	       Pentagon 512
>>6    byte	       14	       Pentagon 1024
>>6    byte	       15	       48k ZX Spectrum (NTSC)
>>6    byte	       16	       ZX Spectrum 12Ke
>>>7   byte		1	       (alternate timings)