Évaluations - , GPA:
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Par ce dispositif a également d'autres instructions :
Facilité d'utilisation
Adv
anced
T
opics
This
section
describ es
additional
information
on
shared
global
data
in
XLs.
External
Data
References
An
external
data
reference,
also
kno
wn
as
an
imp ort,
is
a
reference
to
a
data
sym
b ol
that
is
not
dened
in
the
mo
dule.
External
data
references
are
no
w
allo
w
ed
in
program
les
and
XLs
if
they
are
linked
for
shared
data.
These
references
are
not
resolved
at
link
time
b ecause
the
Link
Editor
builds
one
load
mo
dule
at
a
time,
using
LINK
or
ADDXL .
Therefore,
the
Link
Editor
do es
not
kno
w
where
the
corresp onding
data
denition,
or
exp ort,
is
lo
cated.
The
data
item
could
b e
lo
cated
in
a
mo
dule
in
the
same
XL
or
in
another
XL.
Because
the
Link
Editor
cannot
resolve
external
data
references,
it
turns
the
reference
in
to
an
LST
data
imp ort
request.
It
also
allo cates
an
en
try
in
the
Data
Cross
Reference
T
able
(DXR
T)
for
the
unresolv
ed
data
reference.
The
instruction
used
to
reference
the
external
data
is
c
hanged
from
a
direct
reference
to
an
indirect
reference
through
the
D
XR
T.
This
indirection
enables
the
loader
to
lo
cate
data
denitions
for
eac
h
data
reference
and
initialize
the
D
XR
T
with
the
appropriate
v
alues
at
run
time.
External
data
references
can
b e
created
b
y
the
Link
Editor
for
Storage
and
Data
sym
b ols.
When
linking
to
form
a
program
le,
the
Link
Editor
creates
a
corresp onding
Data
Unsat
record
for
eac
h
Storage
Univ
ersal.
The
Link
Editor
creates
the
Data
Unsat
to
allo w
other
denitions
or
Storage
sym
b ols
to
o
v
erride
the
original
denition
or
sym
b ol
at
run
time.
The
Link
Editor
also
creates
an
LST
data
imp ort
record
and
allo cates
an
en
try
in
the
D
XR
T
for
the
imp ort.
A
t
run
time,
the
loader
lo
cates
data
denitions
for
eac
h
data
reference,
including
those
that
the
Link
Editor
created.
F
or
Storage
Univ
ersals,
if
a
larger
Storage
Univ
ersal
or
a
corresp onding
Data
Univ
ersal
is
found,
the
loader
ignores
the
original
Storage
Univ
ersal
and
binds
all
references
to
the
sym
b ol
found.
When
adding
mo
dules
to
an
XL,
the
Link
Editor
creates
a
corresp onding
Data
Unsat
record
for
eac
h
Data
Univ
ersal
and
go
es
through
the
same
pro cess
used
for
creating
imp orts
for
Storage
Univ
ersals,
outlined
ab o
v
e.
This
allo
ws
other
denitions
to
o
v
erride
the
original
at
run
time.
Data
Univ
ersals
in
program
les
do
not
ha
v
e
Link
Editor-created
Data
Unsats
b ecause
Data
Univ
ersals
in
22
T
echnical
Addendum
for
HP
Link
Editor/iX
... Ce manuel est également adapté pour les modèles :
Logiciel - MPE/iX 6.5 Operating System (138.18 kb)
Logiciel - MPE/iX 7.0 Operating System (138.18 kb)
Logiciel - MPE/iX 7.5 Operating System (138.18 kb)