Xerox 900 series User Manual

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).

Xerox 900 series Specifications

General

Brand	Xerox
Model	900 series
Category	Copier
Language	English