file/magic/Magdir/intel

#------------------------------------------------------------------------------
# $File: intel,v 1.20 2021/04/26 15:56:00 christos Exp $
# intel:  file(1) magic for x86 Unix
#
# Various flavors of x86 UNIX executable/object (other than Xenix, which
# is in "microsoft").  DOS is in "msdos"; the ambitious soul can do
# Windows as well.
#
# Windows NT belongs elsewhere, as you need x86 and MIPS and Alpha and
# whatever comes next (HP-PA Hummingbird?).  OS/2 may also go elsewhere
# as well, if, as, and when IBM makes it portable.
#
# The `versions' should be un-commented if they work for you.
# (Was the problem just one of endianness?)
#
0	leshort		0502		basic-16 executable
>12	lelong		>0		not stripped
#>22	leshort		>0		- version %d
0	leshort		0503		basic-16 executable (TV)
>12	lelong		>0		not stripped
#>22	leshort		>0		- version %d
0	leshort		0510		x86 executable
>12	lelong		>0		not stripped
0	leshort		0511		x86 executable (TV)
>12	lelong		>0		not stripped
0	leshort		=0512		iAPX 286 executable small model (COFF)
>12	lelong		>0		not stripped
#>22	leshort		>0		- version %d
0	leshort		=0522		iAPX 286 executable large model (COFF)
>12	lelong		>0		not stripped
#>22	leshort		>0		- version %d
# updated by Joerg Jenderek at Oct 2015
# https://de.wikipedia.org/wiki/Common_Object_File_Format
# http://www.delorie.com/djgpp/doc/coff/filhdr.html
# ./msdos (version 5.25) labeled the next entry as "MS Windows COFF Intel 80386 object file"
# ./intel (version 5.25) label labeled the next entry as "80386 COFF executable"
# SGI labeled the next entry as "iAPX 386 executable" --Dan Quinlan
0	leshort		=0514
# use subroutine to display name+flags+variables for common object formatted files
>0	use				display-coff
#>12	lelong		>0		not stripped
# no hint found, that at offset 22 is version
#>22	leshort		>0		- version %d
0	leshort		0x0200
>0	use				display-coff
0	leshort		0x8664
>0	use				display-coff

# rom: file(1) magic for BIOS ROM Extensions found in intel machines
#      mapped into memory between 0xC0000 and 0xFFFFF
# From: Alex Myczko <alex@aiei.ch>
# updated by Joerg Jenderek
# https://en.wikipedia.org/wiki/Option_ROM
0        beshort         0x55AA       BIOS (ia32) ROM Ext.
!:mime	application/octet-stream
!:ext	rom/bin
>5       string          USB          USB
>7       string          LDR          UNDI image
>30      string          IBM          IBM comp. Video
>26      string          Adaptec      Adaptec
>28      string          Adaptec      Adaptec
>42      string          PROMISE      Promise
>2       byte            x            (%d*512)

# Flash descriptors for Intel SPI flash roms.
# From Dr. Jesus <j@hug.gs>
0	lelong		0x0ff0a55a	Intel serial flash for ICH/PCH ROM <= 5 or 3400 series A-step
16	lelong		0x0ff0a55a	Intel serial flash for PCH ROM

# From: 	Joerg Jenderek
# URL:		https://en.wikipedia.org/wiki/Advanced_Configuration_and_Power_Interface
# Reference:	https://uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf
# Note:		generated for example by `cat /sys/firmware/acpi/tables/DSDT MyDSDT.aml`
0	string		DSDT
>0	use		acpi-table
# not tested or other file format
0	string		APIC
>0	use		acpi-table
#0	string		ASF!
#>0	use		acpi-table
0	string		FACP
>0	use		acpi-table
#0	string		FACS
#>0	use		acpi-table
0	string		MCFG
>0	use		acpi-table
0	string		SLIC
>0	use		acpi-table
0	string		SSDT
>0	use		acpi-table
0	name		acpi-table
# skip ASCII text starting with DSDT by looking for valid "low" revision
>8	ubyte		<17	ACPI Machine Language file
# assume that ACPI tables size are lower than 16 MiB
#>4	ulelong		<0x01000000
# DSDT for Differentiated System Description Table
>>0	string		x	'%.4s'
#!:mime	application/octet-stream
!:mime	application/x-intel-aml
!:ext	aml
# the manufacture model ID like: VBOXBIOS BXDSDT
>>16	string		>\0	%.8s
# OEM revision of DSDT for supplied OEM Table ID like: 0 1 2 20090511
>>>24	ulelong		x	%x
# OEM ID like: INTEL VBOX (VirtualBox) BXDSDT (qemu) MEDION or \030\001\0\0 for s3pt.aml
>>10	ubyte		>040	by %c
>>>11		ubyte	>040	\b%c
>>>>12		ubyte	>040	\b%c
>>>>>13		ubyte	>040	\b%c
>>>>>>14	ubyte	>040	\b%c
>>>>>>>15	ubyte	>040	\b%c
# This field also sets the global integer width for the AML interpreter.
# Values less than two will cause the interpreter to use 32-bit.
# Values of two and greater will cause the interpreter to use full 64-bit.
# 16 for asf!.aml, 67 fo rsdp.aml
>>8	ubyte		x	\b, revision %u
# length, in bytes, of the entire DSDT (including the header)
>>4	ulelong		x	\b, %u bytes
# entire table must sum to zero
#>>9	ubyte		x	\b, checksum %#x
# vendor ID for the ASL Compiler like: INTL MSFT ...
>>28	string		>\0	\b, created by %.4s
# revision number of the ASL Compiler like: 20051117 20140724 20190703 20200110 ...
>>>32	ulelong		x	%x