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Otros manuales para este modelo:
Resumen del manual
What
Is
an
Intrinsic
Mechanism?
The
MPE/iX
in
trinsics
mec
hanism
pro
vides
exible
and
con
v
enien
t
access
to
in
trinsic
routines
from
v
arious
languages.
When
an
external
routine
is
designated
as
an
in
trinsic,
the
compiler
uses
the
in
trinsics
mec
hanism
to
determine
ho
w
to
in
v
ok
e
the
routine
correctly
.
F
or
example,
a
compiler
receiv
es
information
ab out
the
n
um
b er
of
parameters,
the
t
yp e
of
eac
h
parameter,
and
the
functional
return
t
yp e
(if
applicable)
and
do es
the
follo wing:
Provides
a
consisten
t
in
trinsic
in
terface
Reduces
the
burden
and
error
p oten
tial
of
co ding
m
ultiple
external
pro cedure
declarations
with
all
the
parameters
and
t
yp e
declarations
required
in
some
languages
Ensures
prop er
data
t
yp e
con
v
ersion
V
eries
prop er
data
alignment
Provides
prop er
indirect
address
references
to
data
Generates
prop er
reference
parameter
addresses
Assigns
v
alues
to
default
parameters
and
correctly
resolves
optional
parameters
omitted
at
the
end
of
an
in
trinsic
call
Provides
parameter
c
hec
king
for
languages
that
ha
v
e
no
mec
hanism
for
detailed
external
declarations
P
ermits
in
ter-language
calls
that
may
not
b e
p ossible
within
a
particular
programming
language
Provides
name
translation
for
case-insensitive
languages
Allows
future
extension
without
requiring
source
co de
c
hanges
F
or
example,
P
ascal/XL
requires
a
detailed
routine
header
for
all
external
routines,
and
all
calls
to
a
routine
m
ust
adhere
to
strict
t
yping
constraints.
Ho
w
ev
er,
b
y
designating
a
routine
as
an
in
trinsic,
the
compiler
uses
the
in
trinsics
mec
hanism
to
determine
ho
w
to
call
the
routine
whic
h
p ermits
remov
al
of
the
detailed
routine
header
and
relaxes
the
strict
t
yping
constraints.
Since
the
t
yp e
information,
stored
in
the
in
trinsic
mec
hanism,
is
in
language-indep enden
t
form,
y
ou
can
pass
parameters
of
an
y
t
yp e
that
conform
functionally
to
the
t
yp es
exp ected
b
y
the
in
trinsic.
This
allo ws
con
v
enien
t
and
exible
access
to
system
in
trinsics
through
the
in
trinsics
mec
hanism.
Y
ou
can
dene
routines
for
access
as
if
they
w
ere
in
trinsics
and
place
them
in
Note
new
or
existing
in
trinsic
les
and
libraries.
Introduction
1-3
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Software - MPE/iX 6.5 Operating System (1.36 mb)