I!odule Name DMKTCS DMKTDK DMKTHI DMKTMR DMKTRA
DMKTRC DMKTRD Entry Points DMKTCSET DMKTCSSP DMKTCSCO DMKTDKGT
DMKTDKRL
DMKTHIEN DMKTMRCC DMKTMRCK DI!KTI!RPT DMKTMRSP DMKTMRTN DI!KTMRVT DMKTRACE DMKTRCEX DMKTRCIO DMKTRCIT DI!KTRCND DMKTRCPB DMKTRCPG DMKTRCPV DMKTRCSV DMKTRCSW DMKTRDSI DMKTRDWT CP Module Entry Point Directory
1 , Attributes, Function , --f Pageable. Sets up the 3800 prior to printing the file. Sets up the 3800 prior to printing the separator. Sets up the forms overlay sequence control.
Pageable.
Allocates cylinders of temporary disk space from
owned volumes.
Releases temporary disk sFace to the pool of free
space.
Pageable.
Displays data about use of and contention for major system resources.
Processes INDICATE command.
Resident. Simulates the CPU timer and time-of-day clock
comparator instructions for virtual machines
operating in EC mode. Entered after expanded virtual machine assist
processing of a virtual SCKC instruction. Simulates virtual clock ccmparator interruptions.
Calculates user's total virtual problem time.
Entered after expanded virtual machine assist
processing of a virtual SPT instruction. Simulates timer instruction. Simulates virtual CPU timer interruptions.
Pageable.
Processes the TRACE command line.
virtual machine with facility to
instructions, program interrupts,
interrupts, successful searches,
instructions with output on the
terminal. TRACE command processor. Pageable.
Processes the TRACE command functions.
Traces external interruptions.
Traces I/O interruptions.
Provides a
track SiC external
or all
printer or Sets the needed SVC B2 for instruction tracing.
Ends tracing. Puts back user instructions altered by tracing.
Traces program interruptions.
Traces privileged instruction interruptions.
Processes an SVC, Branch, or full instruction
TRACE.
Traces virtual and real CSWs. Pageable. Split from D5KTRC. Traces I/O operations (510, TIO, HIO, TCH).
Serialization entry for I/O and CCW tracing. CP Directories 1-251
1

CP Module Entry Point Directory I I Module I Name r DMKTRM DMKUCB DMKUCC DMKUCS DMKUDR DMKUDU DMKUNT Entry Points DMKTRMID DMKUCB DMKUCCLD DMKUDRBV DMKUDRDS DMKUDRFD DMKUDRFU DMKUDRRD DMKUDRRV DMKUDUMN DMKUNTFR DMKUNTIS Attributes, Function
Pageable.
Identifies a 2741 terminal as either a 2741P (PTTC/EBCD) or 2741C (correspondence) fro. the
user command. It sets ADEVTYPE the RDEVBLOK to TYP2741P or TYP2741C and sets flag RDEVIDNT on if
the terminal was successfully identified.
Pageable.
Contains the UCB buffer load images used by the LOAD command to load the universal character set
buffer in the 3811 control unit. This module
contains no executable code. Pageable. Contains the UCB buffer load images used by the LOAD command to load the universal character set
buffer in the 3203 printer control unit. This module does not contain executable code.
Pageable.
Contains the UCS buffer load images that the LOAD command uses to load the universal character set
buffer in the 2821 control unit. This module does
not contain executable code.
Pageable.
Allows the DMKDIRCT or DMKCPINT programs to build
a list of virtual page buffers; one for each UDIRBLOK page on disk.
Allows the DMKDIRCT program to swap the active
user directory to the newly created user
directory. Puts specified UDEVBLOK into the caller's buffer.
Finds a given user ID in the user directory and moves the user's directory entry into the
caller's buffer.
Reads the next user directory into the caller's
buffer.
Releases a virtual page used by the directory program as a buffer.
Pageable. Updates in-place the CP directory on the object DASD page and updates in-Flace the virtual system page (if used) on the Faging device. Entered
from DKKHVD when a class B virtual machine issues
a DIAGNOSE code '84' instruction.
Resident.
Untranslates CCWs and CSWs. Releases pages and free storage used for the CCW chain. Also processes the CP assist instruction, UNTFR (E605).
Finds the RCWTASKS that have been patched to
handle OS ISAM self-modifying sequences and put
them back the way DMKCCW had them to aIlew DMKUNTRN and DMKUNTFR to operate correctly. L- L--- ______________________ __
1-252 IBM VM/370 System Logic and Problem Determination--Volume 1