Module Entry Point Directory I , , I Module Entry I I I Name Points I Function I • DMSSRT DMSSRV DMSSSK DM$STG DMSSTT DMSSVN DMSSVT DMSSYN DMSTIO DMSTMA DMSTPD DMSTPE DMSTQQ DMSTRK DMSSRT DMSSRV DMSSSK DfI1SSTGSB DMSSTGST DMSSTGCL DMSSTGSV DMSSTGAT DMSSTT DMSSVN DMSSVT SYNONYM DMSTIO DMSTMA DMSTPD DMSTPE DMSTQQ Dr1STQQX DMSTRKA DMKSTRKX Arranges records within a file in descending sequential
order. Provides capability to copy books from a system or
private source statement library to a specified output
device.
sets storage protect key for a specified saved system.
Processes CMS calls to DM5STGST and DMSSTGSB (STRINIT) and storage service routines. STRINIT. as exit reset routine.
service routine to change nucleus variables.
Initializes storage and sets up an anchor table.
Locates the file status table entry for a
and, if found, provides the caller with the
the entry.
given file
address of
Processes the as WAIT and POST macros.
Processes OS macros: XEAP, TIME, SPIE, RESTORE, BLDL,
FIND, STOW, DEVTYPE, lRKBAL6 iTO, WTOR, EXTRACT, IDENTIFY, CHAP, TTIMER, STIMER, DEQ, SNAP, ENQ, FREEDBUF, STAE, DETACH, CHKPT, RDJFCB, SYNAD, BACKSPACE, and STAX. Processes the SYNONYM command. Sets up user-defined
command names and abbreviations for CMS commands.
Reads or writes a tape record or controls
positioning.
tape
Reads an IEHMOVE unloaded PDS from tape and places it
in a CMS MACLIB.
Reads a tape consisting cf card i.age members of a PDS and creates CMS disk files for each member of the data
set. The PDS option allows reading unblocked tapes
produced by the as IEEPTPCH utility or blocked tapes
produced by the OS IEHHOVE utility. The UPDATE option
provides the "./ ADD" function to blocked or unblocked
tapes produced by the IEBUPDTE utility.
Processes the TAPE command to perform certain tape
functions, such as: dump a eMS file, load a eMS file,
set tape mode, scan, skip, rewind, run, FSF, FSR, BSF, BSR, ERG, and Allocates a 200-byte first chain link (FeL) to a
calling program.
Makes a 200-byte disk area no longer needed by one
program available for allocation to another program.
Allocates an BOO-byte disk area to a calling prcgram. Makes an BOO-byte disk area that is no longer needed by one program available for allocation to another. eMS Directories 2-167

Module Entry Point Directory Module Name DMSTYP DMSUPD DMSVAN DMSVAS DMSVIB DMSVIP DMSVPD DMSVSR DMSV33 DP.lSXCP DP.lSZAP DMSZAT DMSZIT DMSZNR DMSZUS Entry Points TYPE DMSUPD DPlSVAN DPlSVAS DP.lSVIB DMSVIP DMSVPD DMSVSR DMSV33 DMSXCP DMSZAP DMSZAT DMSZIT DMSZNR DPlSZUS Function
Processes the TYPE command. Types all or a specified
part of a given file on the user's console.
Processes the UPDATE command. Updates source files
according to specifications in update files. P.lultiple updates can be made, according to specifications in
control files that designate the update files.
Contains table of Access Method Services non shared
(nonreentrant) modules.
Contains a table of Access Method Services shared
(reentrant) modules. Loads the CMS/VSAM saved system and pass control to the CMS/VSAM interface routine, DMSVIP. Finds the CMS/DOS discontiguous shared segment (DCSS); I issues all necessary DOS ASSGN statements for OS user; maps alIOS VSAM macro requests to DOS specifications;
equivalents, where necessary; traps all transfers of
control between VSAM and the OS user and sets the
aFpropriate operating environment flags.
Reads DOS, and
froa a DOS PTF tape
user's A-disk.
Access Method Services modules
and writes the modules to the CMS Resets any flags or fields set by VSAM processing;
purges the VSAM discontiguous shared segment.
Contains a table of VSAM shared (reentrant) aodules and
is contained within the CMSVSAM shared system. Used by CMSVSAP.I and VSAMGEI to generate the CMSVSAft shared
system, and by CDLOAD to locate the phases within CMSVSAM. Used for system generation from the DOS/VS Release 33 restored starter system. Contains no exe­ cutable code. Simulates the DOS EXCP function (DOS SVC 0) in the CMS/DOS environment. EXCP (Execute Channel program) requests initiation of an I/O operation to a specific
logical unit. Processes the ZAP maintain CMS LOADLIB command LKED.
command. lIeabers Provides a
as written
Defines 8K-bytes of transient area.
Defines the end of the CMS nucleus.
Defines the end of IUCON (DP.lSNUC). Defines the start of the user area.
facility to
by the CMS L- ____________________ ____________________________________________________________ _
2-168 IBM VM/370 System Logic and Program Determination--Voluae 2