Intel 121748-001 User Manual
8086
RELOCATABLE
OBJECT
MODULE
FORMATS
An
Intel Technical Specification
Order
Number:
121748-001
.
Copyr;ght~1981
Intel Corporation,
3065
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Avenue,
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8086
Object
Module
Formats
Version
4."
TABLE
DOCUMENT
- 'fABLE
INTRODUCTION • • • • • • • • • •
DEFINITION
MODULE
MODULE
MODULE
SEGMENT
SEGMENT
SYMBOL
DATA
INDICES
CONCEPTUAL
~~ODULE
RECORD
INTRODUCTION
RECORD
'r-MODULE
L-MODULE
R-MODULE
LIST
SEG~ENT
~~OUP
TYPE
SYMBOL
PUBLIC
EXTERNAL
LOCAL
LINE NUMBERS
BLOCK
B
DE8UG
DATA
RELOCATA9LE
RELOCATABLE ITERATED
PHYSICAL
PHYSICAL ITERATED
LOGICAL
LOGICAL ITERATED
FIXUP
OVERLAY
END
REGISTEa
MODULE
LI
i3RARY
LIHRARY
LIBRARY
LIBRAHY
CONTROL
OF
CONTENTS
OF
TERMS
SEMANTICS
IDENTIFICATION
ATTRIBUTES
DEFINITION
ADDRESSING •
DEFINITION
• • • • • • •
• • • • • • • • • • •
FRAMEWORK
SYN'fAX
ORDER
to
FORl~ATS
HEADER
HEADER
HEADER
OF
NAMES
DEFINITION
DEFINITION
DEFINITION
DEFINITION
NAMES
NAMES
SYMBOLS
DEFINITION
LOCK
END
SYMBOLS
RECORDS
ENU~ERATED
RECORD
DEFINITIO~
RECORD
INITIALIZATION
E~D
I~ECORDS
HEADER
~ODULE
r-10DULE
RECORD
E~U~ERATED
• • • • • • • • • • • • • • • • • • • • •
RECORD
• •
••••••
••••••
••••••
FOR
• • • •
the
RECORD
RECORD
RECORD
RECORD
RECORD
HECORD
DEFINITION
RECORD
RECORD
RECORD
gNU~ERATED
• • • • • • • • • • • • • • • •
• • • • •
RECORD
R~CORD
RECORDS
DEFINITION
~ECORD
• • • • • • • • •
DATA
DATA
DATA
RECORD
• • • • • • • • • • • • • • • • •
RECORD
NAMES
LOCA'fIONS
OF
. . . . . . .
• • • •
• • •
. . .
FIXUPS
FORMATS
• • • •
• • • •
•
•••
• • • •
RECORD
••
• • • • • • •
DATA
DATA
DATA
RECORD
RECORD
RECORD
RECORD
RECORO
RECORD
~ECORD
CONTENTS
· . . . . . . .
· . . . . .
.
· . .
• • • • • • • 9
• • • • • • • • • •
• • • • • • • • • • •
• • • • • • • • • • • • •
• • • • • • • • • • •
• • • • • • • • • • • • •.
• • • • • • • • • • • • •
• • • • • • • • • • • •
• •
• • • •
• • • • • • • • • • • • • 21;
• • • • • • • • • • • • •
• • • • • • • • • • • • •
• • • • • • • • • • • • •
• • • • • • • • • • •
• • • • • • • • •
• • • • • • • • •
•
RECORD
• • •
• • •
• • •
RECORD
RECORD
• • • • • • • •
• • • • • • • • • • • • •
• • • • • • • • • • • • •
• • • • • •
• • • • • • • • • • • • •
• • • • • • • • •
•
• • • • • • • • • •
• •
• • • • • • • • • •
• • • • • • • • • •
• • • • • • •
• • • • • • • • • •
• • • • •
• • • • • • • •
• • • • • • • • • •
• • • • • • • • • • •
. . . . . .
.
· . . .
• • • • • • • •
• • • • • •
• • • • • • • •
••
. . .
-.
• • • •
...
~
••••
•••
• • 9
••
18
10
11
12
13
22
24
27
28
31
32
36
(0
44
47
49
51
53
56
• •
57
~0
~2
~4
~5
~~
~R
70
74
7~
77
80
82
•
83
84
2
3
5
5
9
3
8086
Object
Module
Formats
Version
4.(J
LIBRARY DICTIONARY
COMMENT
1.
NUMERIC
2.
TYPE REPRES ENTA'tIONS
3.
SYNTAX
4.
EXAMPLES
RECORD
LIST
DIAGRA~S
OF
FIXUPS
RECORD
• • • • • • •
OF
RECORD
• • • • • •
TYPES
•••
••
· . .
· . .
APPENDICES
· . .
· . .
. .
· . . . . . . .
• •
· . . . . .
• •
· . .
· . . . .
· . . . .
• •
. . . . . .
• • • •
• •
• • • •
•
85
•
Sf;
88
89
91
97
4
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86
Object
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Formats
INTRODUC'f ION
Version
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Here
lanquaqe
the
output
processor.
languaqe
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debuqgers.
The
relocatable
Capabilities
mapping
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(1,048,576).
which
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for
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are
section
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Note
occupy
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of
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be
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5
8086
Object
Module
Formats
Version
4.0
symbols.
enforced
LOGICAL
contents
binding)
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not
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at
LOCATE-time
object
FRAME
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and
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content
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partially
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necessarily
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of
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GROUP
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final
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collection.
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notation
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The
not
imply
contiquity
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defines
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qroup's
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X, Y
X, Y
FRAME
be
numbered
a FRAME.
term
is
is
equivalent
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and
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Locatable.
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in
fixups
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name
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of
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and
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are
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covers
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are
and
on
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to
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are
allowed.
constrained
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in
a
paraqraph
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to
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NUMBERS.
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NU~BER.~
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module
No
is
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in
X, Y
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does
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same
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values
fixups
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imply
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numhers,
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module
are
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the
form
does
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a
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be
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of
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3
purposes:
role
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used
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in
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symbol
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set
has
locations
the
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assigned
at
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used
in
assembly
may
iff
they
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than
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FRAME
defininq
of
of
memory
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in
set
S.
of
names
LINK-time
at
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have
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can
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of
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a
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lowest
S.
Thus,
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at
in
source
be
a
partition
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in
exactly
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location.
memory
or of
-FOO's
locations,
FRAME
This
we
unique
may
translation-time.
determininq
to
code
to
assiqned
on
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semantics
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identify
OVERLAY
translation-time
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a
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Class
Names,
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~located"
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RED, BLUE,
uses
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or
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be
Overlay
on
however,
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at
overlappinq
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GREEN
of
Class
LSEG's
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LSEG's
oratLINK-time.
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assiqned
Name
is
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no
semantics
user-defined.
or
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brief.
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Class
include
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handle
optionally
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equivalence
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LSEG's
locations.)
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Examples
DISPLAYMEMORY.
the
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of
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uses
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Seqment
Name
the
the
same
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Unlike
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the
may
to
at
be
7
8086
Object
Module
Formats
Version
4.0
COMPLET~
three
Name
NAME -The
component
and
combined
Overlay
iff
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~complete
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are
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defined
Segment
modules
to
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Name,
will
the
Class
be
8
8086
Object
Module
Formats
Version
4.9
In
order
module
There
name.
header
are
The
below.
A
module
translation
called
a T-MODULE. A T-MODULE
(THEADR).
translator.
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module
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(LHEADR).
(RHEADR).
be
provided.
to
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example
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as
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are
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MODULE
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for
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file
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that
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will
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to
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is
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RHEADR
for
use
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means
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provided
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DEFINITIO~
collection
hy
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translator.
well
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more
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not
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9
808fi
Object
Module
Formats
Version
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represents
determined
SEGMENTS
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module
line
a
10
8086
Object
Module
Formats
Version
4.0
The
linkinq
the
is
EXTERNAL
DEFINITION
later.
The
LOCAL
DEBUG
the
SYMBOLS
SYMBOLS
BLOCK
(T¥PDEF) •
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the
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of
DATA
RELOCAT~BLE
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module
data
data
by
size
enumeratinq
definition
NAMES
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RECORD
semantics
information
LINE
BLOCK
NU~BERS
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the
line
numbers
essential
imaqe
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physical,
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ITERATED
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provide
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bytes
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loader.
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TYPE
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loaded.
represented
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purpose
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The
the
The
DATA
or
DATA
an
are
11
8086
Object
Module
Formats
Version
4.~
absolute
or
ENUMERATED
of
representinq
A
8086
probably
for
loadinq
records
DATA
not
are
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Throughout
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12
808~
Object
Module
Formats
Version
4.0
A
translator,
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Appendix
8086
data:
of
two
address
defining
CONCEPTUAL
"Fixup"
is
performed
4
(Note)
represents
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13
8086
Object
Module
Formats
version
4.0
pointer
word
follows
OFFSET
(4)
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hy
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zero
byte
LOCATE'd
is
14
R986
Object
Module
Formats
Version
4.9
(T6)
address
X
is
(eventually
is
INDEX.
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address
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is
that
specify
as
in
fixup
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of
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with
every
The
proaram,
the
is
15
808~
Object
Module
Formats
Version
4.0
displacement
To
indicate
is
introduced.
Below
frames:
(Fe)
the
LSEG
(FI)
defined
the
by
qroup
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19
8086
Object
Module
Formats
Version
4.0
(1)
this
The
case,
reason
located,
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8086
Object
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Formats
version
4.9
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to
21
8086
Object
Module
Formats
Version
4.0
A
object
modules,
defined
object
records
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syntactic
CACM,
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Version
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NOTE:
are
not
section
The
following
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23
8086
Object
Module
Formats
Version
4.0
The
schematic
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* * * * * *
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24
8086
Object
Module
Formats
Version
4.0
Any
structure:
inclusive,
field.
byte
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Object
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8~8~
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28
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Object
Module
Formats
Version
4.0
TYP
semantics
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29
8086
Object
Module
Formats
Version
4.0
buffer,
value
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30
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