2 #------------------------------------------------------------------------------
3 # $File: xenix,v 1.14 2021/04/26 15:56:00 christos Exp $
4 # xenix: file(1) magic for Microsoft Xenix
6 # "Middle model" stuff, and "Xenix 8086 relocatable or 80286 small
7 # model" lifted from "magic.xenix", with comment "derived empirically;
8 # treat as folklore until proven"
10 # "small model", "large model", "huge model" stuff lifted from XXX
12 # XXX - "x.out" collides with PDP-11 archives
14 0 string core core file (Xenix)
15 # URL: http://www.polarhome.com/service/man/?qf=86rel&tf=2&of=Xenix
16 # http://fileformats.archiveteam.org/wiki/OMF
17 # Reference: http://www.azillionmonkeys.com/qed/Omfg.pdf
18 # Update: Joerg Jenderek
19 # recordtype~TranslatorHEADerRecord
21 # GRR: line above is too general as it catches also Extensible storage engine DataBase,
22 # all lif files like forth.lif hpcc88.lif lex90b.lif ( See ./lif)
23 # and all compressed DEGAS low-res bitmaps like: MUNCHIE.PC1 PIDER1.PC1
24 # skip examples like GENA.SND Switch.Snd by looking for record length maximal 1024-3
26 # skip examples like GAME.PICTURE Strange.Pic by looking for positive record length
28 # skip examples like Xtable.Data FRACTAL.GEN SHR.VIEW by looking for positive string length
30 # skip examples like OMBRE.6 with "UUUUUU" name by looking for valid high second record type
31 >>>>(1.s+3) ubyte >0x6D 8086 relocatable (Microsoft)
32 #!:mime application/octet-stream
33 !:mime application/x-object
35 # T-module name often source name like "hello.c" or "jmppm32.asm" in JMPPM32.OBJ or
36 # "kbhit" in KBHITS.OBJ or "CAUSEWAY_KERNAL" in CWAPI.OBJ
37 >>>>>3 pstring x \b, "%s"
38 # data length probably lower 256 according to TrID obj_omf.trid.xml
39 >>>>>1 uleshort x \b, 1st record data length %u
41 #>>>>>(3.b+4) ubyte x \b, checksum %#2.2x
42 # second recordtype: 96h~LNAMES 88h~COMENT 8CH~EXTDEF
43 >>>>>(1.s+3) ubyte x \b, 2nd record type %#x
44 >>>>>(1.s+4) uleshort x \b, 2nd record data length %u
45 0 leshort 0xff65 x.out
46 >2 string __.SYMDEF randomized
48 0 leshort 0x206 Microsoft a.out
49 >8 leshort 1 Middle model
50 >0x1e leshort &0x10 overlay
51 >0x1e leshort &0x2 separate
52 >0x1e leshort &0x4 pure
53 >0x1e leshort &0x800 segmented
54 >0x1e leshort &0x400 standalone
55 >0x1e leshort &0x8 fixed-stack
56 >0x1c byte &0x80 byte-swapped
57 >0x1c byte &0x40 word-swapped
58 >0x10 lelong >0 not-stripped
59 >0x1e leshort ^0xc000 pre-SysV
60 >0x1e leshort &0x4000 V2.3
61 >0x1e leshort &0x8000 V3.0
66 >0x1f byte <0x040 small model
67 >0x1f byte =0x048 large model
68 >0x1f byte =0x049 huge model
69 >0x1e leshort &0x1 executable
70 >0x1e leshort ^0x1 object file
71 >0x1e leshort &0x40 Large Text
72 >0x1e leshort &0x20 Large Data
73 >0x1e leshort &0x120 Huge Objects Enabled
74 >0x10 lelong >0 not stripped
76 0 leshort 0x140 old Microsoft 8086 x.out
77 >0x3 byte &0x4 separate
79 >0 byte &0x1 executable
80 >0 byte ^0x1 relocatable
81 >0x14 lelong >0 not stripped
84 >0x1e leshort &0x10 overlay
85 >0x1e leshort &0x2 separate
86 >0x1e leshort &0x4 pure
87 >0x1e leshort &0x800 segmented
88 >0x1e leshort &0x400 standalone
89 >0x1e leshort &0x1 executable
90 >0x1e leshort ^0x1 object file
91 >0x1e leshort &0x4000 V2.3
92 >0x1e leshort &0x8000 V3.0
98 >0x1e leshort &0x4 Large Text
99 >0x1e leshort &0x2 Large Data
100 >0x1e leshort &0x102 Huge Objects Enabled
102 0 leshort 0x580 XENIX 8086 relocatable or 80286 small model