usr.bin/file/magdir/microsoft

#
# Microsoft (Xenix, not DOS)
#
# "Middle model" stuff, and "Xenix 8086 relocatable or 80286 small
# model" lifted from "magic.xenix", with comment "derived empirically;
# treat as folklore until proven"
#
# "small model", "large model", "huge model" stuff lifted from XXX
#
# XXX - "x.out" collides with PDP-11 archives....
#
0       string          core            core file (Xenix)
0       byte            0x80            8086 relocatable (Microsoft)
0       leshort         0xff65          x.out
>2      string          __.SYMDEF        randomized
>0      byte            x               archive
0       leshort         0x206           Microsoft a.out
>8      leshort         1               Middle model
>0x1e   leshort         &0x10           overlay
>0x1e   leshort         &0x2            separate
>0x1e   leshort         &0x4            pure
>0x1e   leshort         &0x800          segmented
>0x1e   leshort         &0x400          standalone
>0x1e   leshort         &0x8            fixed-stack
>0x1c   byte            &0x80           byte-swapped
>0x1c   byte            &0x40           word-swapped
>0x10   lelong          >0              not-stripped
>0x1e   leshort         ^0xc000         pre-SysV
>0x1c   byte            &0x4            86
>0x1c   byte            &0x9            286
>0x1c   byte            &0xa            386
>0x1f   byte            <0x040          small model
>0x1f   byte            =0x048          large model
>0x1f   byte            =0x049          huge model
>0x1e   leshort         &0x1            executable
>0x1e   leshort         ^0x1            object file
>0x1e   leshort         &0x40           Large Text
>0x1e   leshort         &0x20           Large Data
>0x1e   leshort         &0x120          Huge Objects Enabled
>0x10   lelong          >0              not stripped

0       leshort         0x140           old Microsoft 8086 x.out
>0x3    byte            &0x4            separate
>0x3    byte            &0x2            pure
>0      byte            &0x1            executable
>0      byte            ^0x1            relocatable
>0x14   lelong          >0              not stripped

0       lelong          0x206           b.out
>0x1e   leshort         &0x10           overlay
>0x1e   leshort         &0x2            separate
>0x1e   leshort         &0x4            pure
>0x1e   leshort         &0x800          segmented
>0x1e   leshort         &0x400          standalone
>0x1e   leshort         &0x1            executable
>0x1e   leshort         ^0x1            object file
>0x1e   leshort         &0x4000         V2.3
>0x1e   leshort         &0x8000         V3.0
>0x1c   byte            &0x4            86
>0x1c   byte            &0xb            186
>0x1c   byte            &0x9            286
>0x1c   byte            &0x29           286
>0x1c   byte            &0xa            386
>0x1e   leshort         &0x4            Large Text
>0x1e   leshort         &0x2            Large Data
>0x1e   leshort         &0x102          Huge Objects Enabled

0       leshort         0x580           XENIX 8086 relocatable or 80286 small model