r I Module I Name , DMKSNT DMKSPL DMKSSP DMKSSS i
Entry I CP Module Entry Point Directory
Points I Attributes, Function I Pageable. DMKSNTBL This module is assembled by the installation
system programmer. It describes the system to be
saved via the SAVESYS command and to be initial
program loaded by name. Shared segments may be
specified. These segments consist of all
reenterable code and no altering of this storage
is allowed. There is no executable code in this
module. Pageable. spool file manager. DMKSPLCR Closes and queues a real reader spool file for
virtual input. DMKSPLCV Closes and queues a virtual printer or punch
spool file for processing. DMKSPLDL Deletes used files from the system and
de-allocates the DASD page space. DMKSPLOR Initializes control blocks and buffers for real
input reader files. DMKSPLOV Initializes control blocks and buffers for
virtual printer and punch output spool files.
This module is found in the starter system only.
It builds RCHBLOKs, RCUBLOKs, and RDEVBLOKs necessary to configure a minimum CP system. From the starter system, a real CP system figured
based on the REALIO deck of the installation. DMKSSPOl Entered as a result of an IPL operation. DMKSSSL1 DMKSSSL2 DMKSSSL3 DMKSSSHV DMKSSSI1 DMKSSSI2 DMKSSSUS DMKSSSVA DMKSSSLN DMKSSSCF DMKSSSDE Constructs the I/O blocks and system modules for
a minimum system configuration.
Resident. Services routines for all other modules that
require access to the MSS. Processes a DEDICATE statement with the 3330V parameter.
Processes a DEDICATE statement with raddr and
volid specified, and the raddr is a 3330V. Processes a DEDICATE statement with a vclid but
no raddr.
Processes DIAGNOSE code 1'78'.
Reschedules an I/O operation that had previously
caused a cylinder fault.
Queues an I/O request that has just caused a
cylinder fault. sets the missing attention
handler timer interruption value.
Quiesces all MSS mount and demount activity.
Attaches a 3330V to the system or to a virtual
machine.
Allocates a 3330V device and mounts the required 3330V system volume.
Resets a virtual device defined on a 3330V, including purging any I/O waiting for an MSS volume mount.
Demounts an MSS volume from a 3330V. ____ . ____ 4- __ • ______ __ • ___________________________________ . _________________ --J CP Directories 1-249

CP Entry Point Directory Name DMKSYM DKKTAP DMKTBM Entry
Points DMKSSSEN DMKSSSMQ DMKSTKCP DMKSTKDE DMKSTKIO DMKSTKLF DMKSTKKP DMKSTKOP DMKSVCIN DMKSYM DMKSYS DMKTAP DMKTAPER DMKTAPRL DMKTBMMO DMKTBMNI DMKTBKNO DKKTBKZI DMKTBKZO Attributes, Function
Returns to the appropriate requesting
after an MSS volume mount is complete. Serves as the anchor for the KSSCOK blocks that are queued for MSS mounts,
and change interruptions.
Does not contain executable code.
Resident. Stacks I/O blocks. Stacks a CPEXBLOK. Stacks a deferred execution block. Stacks an IOBLOK. routine
control
demounts, Stacks a CPEXBLOK LIFO (used by EXTEND and
machine check). Stacks CPEXBLOK for current processor only. Stacks CPEXBLOK for the other processor only.
Resident.
Handles any SVC interrupt. Pageable. Provides a symbol table of all CSECTS and entry
points.
Resident.
Exists as a CSECT that defines the system residence volume, paging space, operator ID, dump ID, storage size, and time zone.
Pageable.
Examines the error condition resulting from a
unit check while executing a CP generated tape
channel program. Positioning of the tape is
required on read/write com.ands and the channel program is reexecuted. If the error condition is
uncorrectable, a call is issued to the message
writer (DKKMSW) to notify the operator. Upon regaining control from DKKKSW, the original
channel program may be reexecuted or terminated. Retries the failing tape channel program, after a
tape positioning command has been executed. Performs tape release to determine two-or
four-channel switch capability.
Resident.
Contains the terminal translate tables.
Pageable.
Contains terminal translate tables for APL. EBCDIC to IPL correspondence terminal code. APL correspondence terminal code to APL. APL PTTC/EBCD terminal code to EBCDIC. EBCDIC to APL PTTC/EBCD terminal code. 3210 APL compound read translation. 3270 APL compound write translation. L- ________ __________ 4_, _______________________________________________________ 1-250 IBM System Logic and Problem Determination--Voluae 1