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Xerox 900 series User Manual

Xerox 900 series
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APPENDIX
A
CONTROL
MESSAGE
ACTION
SUBROUTINES
(See
Section
2
of
the
MONARCH
Reference
Manual.
)
PURPOSE:
ACTION:
CALLING
SEQUENCE:
PROGRAMMING
CONVENTIONS:
92
Each
of
these
subroutines
performs
the
processing
functions
associated
with
the
particular
control
message.
Each
entry
in
the
Control
Message
Function
Code
Table
contains
the
address
of
the
Action
Subroutine
which
is
to
be
executed
following
the
analysis
of
the
control
message
by
the
MONARCH
Control
Routine.
Each
of
these
subroutines
performs
the
functions
appropriate
to
the
cor-
responding
control
message.
See
Section
2
of
the
MONARCH
Reference
Manual
for a
description
of
the
control
messages
and
the
functions
per-
formed
by
the
Action
Subroutine
associated
with
each
control
message.
BRU
*IPF
with:
(IPF) =
Origin
of
Action
Subroutine.
(OMTE)
Origin
of
Control
tv'essage
Function
Code
Table
entry
for
the
current
contro
I
message.
(PRMCTR) =
Number
of
parameters
suppl
ied
in
the
current
control
message.
Double
precision
literals
are
counted
as
2
parameters.
(ORGPRM)
=
Origin
of
table
of
parameter
values.
Each
parameter
value
occupies
one
word.
Parameter
values
are
stored
in
the
same
order
as
the
corresponding
parameters
in
the
control
message.
Each
Action
Subroutine
is a
relocatable
subroutine.
If
Action
Subrou-
tines
are
assembled
separately,
the
End
Record
must
not
contain
a
trans-
fer
addresS'.
Action
Subroutines
should
terminate
in
one
of
the
following
ways:
a.
When
an
error
is
detected
(e.
g.,
an
illegal
parameter
value).
Type
an
appropriate
error
message
by
calling
TYPM
and
then
transfer
(BRU)
to
MSGRST
to
allow
the
MONARCH
Control
Rou-
ti
ne
to
obtai
n
the
next
control
message
from
typewri
ter
1 (on
the
W
buffer
for
900
Series
Computers,
or
on
Channel
A for
9300
Compu
ters).

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Xerox 900 series Specifications

General IconGeneral
BrandXerox
Model900 series
CategoryCopier
LanguageEnglish

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