CP Module Entry Point Directory I Module I Entry I I Name I Points Attributes, Function I .----------t----------+ I DMKQCN DMKRGA
DMKRGB DMKRIO DMKRND DMKRNll DMKQCNCL DMKQCBET DMKQCNRD DMKQCNSY DMKQCNTO DMKQCNWT DMKRGAIN
DMKRGB DMKRGBIC DMKRGBEN DMKRIO DMKRND DMKRNHIC DMKRNHIN
DMKRNHND
Resident.
Clears CONTASK stack and returns all blocks to
free storage. Processes completed COBTASKS for virtual console
spooling, return or no return options, and
returns the CONTASK blocks to free storage. Starts and queues a console read request.
Synchronizes virtual machine console activity
with internal supervisor activity. This is used
during a virtual system reset and during the
logoff process.
Disconnects a virtual machine and sets a TeD
clock comparator request to log off the virtual machine after a fifteen-minute delay. Starts and queues a console write request.
Resident.
This is the second-level interruption handler for
remote 3270 stations. This module supports the 3270 remote display and printer stations. It
processes interruptions and CCis for the remote
stations, including message handling and screen
management.
Resident.
Supports the 3270 remote display and printer
stations. It processes interruptions and CCis for
the remote stations including message handling
and screen management.
Initializes and schedules CONTASKs. Enables and disables bisync lines and remote
stations.
Resident.
Exists as a CSECT and defines the machine's
configuration. A basic DMKRIO is shipped with VM/370. DMKRIO can be changed at system
generation or whenever new machines are added by
using the appropriate macros.
Residency not applicable. Invoked
via the NCPDUMP command in CMS. This is the interface between the VM/370 dUmp spool file and the OS-SSP dump format program for
printing and formatting dumps of the 3704 and 3705 communications controllers.
Resident.
Initializes and schedules the CONT1SK fields that
comprise the 3704 and 3705· Network Control
Program transmission header.
This is the secondary interruption handler for
the 3704 and 3705 communication controllers; it
is read when operating in NCP or PEP mode. Schedules control functions for the 3105 or 3104
Network Control Program. 1-246 IBM VM/370 System Logic and Problem Determination--Volume 1

Module Nalle DMKRPA DMKRSE DMKRSP DMKSAV DMKSCH DMKSCN Entry
Points
DMKRPAGT DMKRPAPT DMKRSERR DMKRSESD DMKRSPER DMKRSPEX DMKRSPUR DMKSAVNC DMKSAVRS DMKSCHAE DMKSCHBK DMKSCHCP DMKSCHDL DMKSCHMD DMKSCHRT DMKSCHST DMKSCH80 DMKSCNAU DMKSCBFD CP Module Entry Point Directory
Attributes, Function
Resident.
Virtual storage mapping.
Page-in from DASD to user's virtual storage.
Page-out to DASD from user's virtual storage. Pageable. Real UR device I/O error handler.
Retries and attempts to recover from real unit
record device I/O errors.
Collects 3800 sense data.
Resident. Manages all spooling oFerations on the real
system unit record devices including printing and
punching user-created spool files and reading and
queueing reader files from the real card reader.
Processes spooling errors (ERP). Processes spooling operations. Entered via a GO TO when DMKDSPCH unstacks an IOBLOK with an
interruption for the spooling unit record device.
Formats the active file message for real unit
record devices.
Pageable. DMKSAVNC is entered via an LDT card from DMKLDR. DKKSiVRS is entered via a BALH fro. DMKCKP. DMKSAV saves and restores a page image count of
the CP nucleus on the system residence disk. Writes a page image copy of the CP nucleus.
Restores a page image copy of the CP nucleus.
Resident.
Maintains queues of runnable and eligible users,
alters the dispatching status of users, and
periodically recalculates the working set size
and dispatching priority of users. DMKSCH contains the routines that maintain the system
TaD clock comparator request queue and the code
that monitors users with abnormal execution.
Processes the interrupt occurring when the
favored execution measurement interval expires.
From DMKTMR. Calculates problem state time. Interruption froll real CPU timer.
Alters a user's dispatching status.
Interruption for the midnight date change.
Resets a clock comparator interruption request.
Establishes a clock ccmparator interruption
request.
Interruption for real timer at storage address 80. Resident. Scans module. Searches the chain
userid matches the
one.
of VMBLOKs one Fainted for
to by
one whose
register
Finds the next field in an input message buffer. CP Directories 1-247