Figure 15. AXS Task (Mooule DMTAXS) CMDPROC Reorder Files by Recording
the TAGs queued
to a Given Line
Driver Purge Files
From RSCS Change the
Attributes
Associated with
an RSCS File Open and Close Input and Output Files Accept Files from VM/378 Spoel System REX Task I DMTMSG I Line Driver
Tasks AXSCYCLE ACCEPT: I DMTMGX I Files Spooled by Other Tasks I DMTREX I Order, Change
Purge Command Elements Requests to I DMTCRE I Open and Close VM/370 Spool Files. I DMTCMX I Supervisor Routines Prograa organization for the lIS Service Task
3-36 IBM VM/370: System Logic and Problem Deter.ination--Voluae 3 BSC Line BSC Line
r I I I I r-- I DMTREX I I DMTCMX I - - I $PRTN1
RJE:
Process Print
File Records
and Send Them fll to VMJ370. I I $URTNl
RJE:
Process
Punch File ilL- Records and rv- Send Them to VM/370. $TPGET
$JRTNl
I i
Receive Data HOST: from IiSC line
Process Job
via COMSUP; File Records Allocate Tanks L.-.- and Send Them
to Input Processers COMSUP to VM/370. $CRTNl HOST and RJE: Scan RSCS Control Records and
Perform Control Functions.
L SWRTNl RJE: Send Messages
to RSCS Operator Console HOST: Pass Commands ds
to DMTCMX
$RRTNl HOST and RJE: Recerve Records from lit- I't- I II'- j\t-- '\ \
\
\ VM/370 Spool r-- STPPUT I Inl I Receive Tanks
. Via STPPUT. from Output ;::> CMDPROC Send Buffers Execute Local
Commands
Passed by
DMTCMX;Pass
Messages and
Commands to
Remote Stations. I! to SSC line
via COMSUP U I-- Supervisor Routines Control Communi· cations on the SSC line; Send and L Receive: Y Transmission
\ $START
\\ I \ Contrel Input! Output Pro=rs by Means of
the Commutator Table and Task Control Tables V/ Acknowledgement .1 Data Streams / , /
Figure 16. Program organization for the SML Line Driver Task RSCS Method of operation and Program Organization 3-37 I /" line
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