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Xerox 900 series User Manual

Xerox 900 series
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APPENDIX
B
ADDING
NEW
FUNCTIONS
TO
THE
MONARCH
MONITOR
Aside
from
modifying
existing
Action
Subroutines
to
extend
their
capabilities,
the
only
way
to
add
to
the
functional
capability
of
the
MONARCH
Monitor
is
by
adding
a
new
control
message
func-
tion
code
and
a
corresponding
Action
Subroutine.
Directions
for
adding
a
new
function
to
the
MONARCH
Monitor
are
as
follows:
a.
Insert
a
symbolic
line
containing
a
reference
to
the
"FC"
procedure
into
the
coding
for
the
"TABLES"
subroutine
and
reassemble
it.
(See TABLES
and
GSYSYP).
b.
If symbol ic
parameters
are
to
be
used in
the
control
message
and
the
existing
symbol
ic
parameters
do
not
provide
appropriate
mnemonic
significance
and/or
parameter
values,
then
the
symbolic
lines
which
define
the
necessary
symbolic
parameters
must
be
inserted
into
the
coding
for
the
"TABLES"
subroutine
when
it
is
reassembled.
c.
Write
an
Action
Subroutine
and
assemble
it
using
either
SYMBOL
or
META-SYMBOL.
See
preceding
sections
of
this
manual
for
a
description
of
the
characteristics
of
Action
Subrout
i
nes.
d.
If
the
new
function
requires
that
a
system
routine
be
loaded
from
the
system
tape
and
executed,
then
that
system
routine
should
be
assembled
using
SYMBOL
or
META-
SYMBOL.
e.
Make
a
new
system
tape
using
the
MONARCH
Update
Routine
(see
Section
4,
MONARCH
Reference
Manua
I).
Input
to
the
update
run must
inc
I
ude:
new
object
program
for
TABLES
subroutine.
object
program
for
the
new
Action
Subroutine.
object
program(s)
for
new
system
routine
(if
any).
f. Test
the
new
system
tape
by
issuing
a
variety
of
control
messages
to
MONARCH.
Tests
should
be
designed
to
provide
evidence
that:
(1)
the
new
function
works,
and
(2)
add-
ing
the
new
function
and
updating
the
system
tape
have
not
introduced
errors
in
other
MONARCH
routines.
For
example:
To
add
a
control
message
which
will
cause
MONARCH
to
transfer
control
to
the
memory
location
specified
by
a
parameter
in
the
control
message:
96

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Xerox 900 series Specifications

General IconGeneral
BrandXerox
Model900 series
CategoryCopier
LanguageEnglish

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