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Object
Module
Formats
Version
4.0
The
'Z'
is
a
one
bit
subfield,
currently
without
any
defined
function,
that
is
required
to
contain
0.
The
'0'
subfield
is
one
bit
that
specifies
what
type
of
thread
is
beinq
specified.
If
0=0
then
a
tarqet
thread
is
beinq
defined
and
if
0=1
then
a
frame
thread
is
beinq
defined.
METHOD
is
a 3
bit
subfield
containinq
a
number
between
0
and
3
(0=0)
or
a
number
between
0
and
r,
(0=1).
If
0=0.
then
~ETHOD
=
(0,
1,
2,
3,
4,
5,
~,
7)
mod
4,
where
the
0
,
•••
, 7
indicate
methods
T0
,
•••
,
T7
of
specifyinq
a
tarqet.
Thus,
METHOD
indicates
what
kind
of
Index
or
Frame
Number
is
required
to
specify
the
target,
without
indicatinq
if
the
tarqet
will
be
specified
in
a
primary
or
secondary
way.
If
0=1,
then
METHOD
=
0,
1,
2.
3,
4,
5,
~
correspondinq
to
methods
F0,
•••
,
F6
of
specifyinq
a
frame.
Here.
METHOD
indicates
what
kind
(if
any)
of
Index
or
Frame
Number
is
required
to
specify
the
frame.
THRED
is
a
number
between
3
and
3,
and
associates
a
~thread
number
d
to
the
frame
or
tarqet
defined
by
the
THREAD
field.
INDEX
or
FRAME
NU~8ER
contains
a
Seqment
Index,
Group
Index.
External
Index,
or
Frame
Number
dependinq
on
the
specification
in
the
METHOD
subfield.
This
subfield
will
not
be
present
if·F4
or
F5
or
F~
are
specified
by
METHOD.
FIXUP
FIXUP
is
a
field
with
the
following
format:
***********************///*********///*********///*****
* * * * * *
*
*
*
LOCAT
*
FIX
*
*
OAT
*
*
*
FRAME
DATUM
* TARGET
*
DATUM
*
* TARGET
*
015-
*
*
*
PLACEMENT
*
* * * * * *
***********************///*********///*********///*****
r , , I
+conditional+conditional+conditional+
LOCAT
is
a
byte
pair
with
the
followinq
format:
*****************************************************************
* I , I
* 1 ,
~
I 5 I
* , I r
I ,
LOC
I r
I *
o A T*A
f *
I I I I
, , I
*
R E
COR
0
OFF
5
~
T *
I I , !
I I , *
**************************************************-***-*********-
I
+---~--------lo~byte------------+------------hi
byte------------+
71