eMS Macro Function
*DMSERR Sets up parameter list to type out a CMS error message; Refer to the LINEDIT
macro.
*DMSERT DMSERR work area DSECT.
DMSEXS Execute an instruction without nucleus protection. Refer to VM/SP System Logic
and Problem Determination Guide--Volume 2.
DMSFREE Gets free storage. Refer to the VM / SP System Programmer's Guide.
*DMSFRES Calls system free storage service routines.
DMSFRET Releases free storage. Refer to the VM / SP System Programmer's Guide.
*DMSFREX Calls system free storage service routines.
*DMSFRT Generates a DSECT for free storage management work area.
*DMSFRX Sub macro called by DMSFRET.
DMSFST Sets up a file status table for a given file. Refer to the VM / SP System Program-
mer's Guide.
DMSKEY Sets nucleus protection on or off. Refer to VM / SP System Logic and Problem
Determination Guide--Volume 2.
*DMSLN Called by DMSERR, LINED IT macros.
*DMSLNC Called by DMSERR, LINED IT macros.
*DMSLND Called by DMSERR, LINED IT macros.
*DMSLNP Called by DMSERR, LINED IT macros.
*DMSLNU Called by DMSERR, LINED IT macros.
*DMSLNY Called by DMSERR, LINEDIT macros.
*DMSLNZ Called by DMSERR, LINED IT macros.
*DMSPID Passes a fileid in quotes into separate filename, filetype, filemode, used by FSCB,
and FSPOINT. *DMSTMS Used by RDTAPE, WRTAPE, and TAPECTL. DOSAVE DSECT, describes fields in the logical transient area (LTA). DOSCB DOS simulation control block used for simulation of the CMS file control block
(FCB). DOSCON Creates CMS/DOS control blocks for DMSNUC.
D1!FSD DTFSD DSECT.
DTFX DTF extension DSECT.
*EDCB Frees storage control blocks initialized by DMSEDX for CMS edit modules.
*EPLIST DSECT to map extended plist passed in register O. *EQUATES Generates CMS equates for symbolic names.
*EXCP Issues an SVC O. *EXTSECT Defines storage for the timer interrupt.
*FCB Generates a file control block (FCB) DSECT.
FSCB Sets up a file system control block. Refer to the VM / SP CMS Command and Mac-
ro Reference.
*FSCBD DSECT that describes fields in CMS PLIST for related commands.
Appendix C. CMS Macro Library 559

., eMS Mucro Function FSCLOSE Closes a file. Refer to the VM/SP CMS Command and Macro Reference. *FSENTR Used by CMS file system routines at entry. FSERASE Erases a file. Refer to the V},!/SP CA1S Command and lrfacro R.eference. FSOPEN Opens a file. Refer to the VM/SP CMS Command and Macro Reference. *FSPOINT Executes the CMS POINT function. FSREAD Reads a record from a file. Refer to the VM/SP CMS Command and Macro Refer-
ence. FSSTATE Checks for an existing file. Refer to the VMjSP CMS Command and Macro Refer-
ence. *FSTB Generates a file status table (file directory) block. *FSTD Entry to the file status table (file directory) block. FSWRITE Writes a record into a disk file. Refer to the VM/SP CMS Command and Macro
Reference. *FVS Defines storage for file system variables.
*GETADT Gets a specified active disk table. *GETFST Gets a specified file status table.
HNDEXT Handles external and timer interrupts. Refer to the VM / SP CMS Command and
Macro Reference.
HNDINT Handles interrupt on devices. Refer to the VM/SP CMS Command and Macro
Reference. HNDSVC Handles SVCs. Refer to the VM/SP CMS Command and Macro Reference. IJJHCPL Common VTOC handler input PLIST. IJJHDLST Common VTOC handler descriptor list DSECT. IJJHMFTI Format 1 VTOC label DSECT. *10 Contains PLISTs needed to access CMS I/O routines. *IOSECT Defines miscellaneous I/O variables.
*KEYSECT Contains variables necessary for storage key handling.
*KXCHK Checks to see if HX has been entered by the user.
LABREC DLBL/EXTENT record.
*LDM Loads double multiple (for floating point registers). *LDRST CMS Loader work area.
LINED IT Types a line to the terminal. Refer to the VM/SP CMS Command and Macro Ref-
erence. LOCKTAB LOCK/UNLOCK resource table. LPLDCT LABEL macro PLIST. LSCREEN Used by XEDIT modules to describe the layout of a logical screen on the physical
screen. LSCREEN is built by module DMSXSD. *NUCON Generates a DSECT CMS nucleus constant area. OCTS OPEN/CLOSE transient SVA PLIST. *OVSECT DMSOVS work area. 560 VM/SP System Programmer's Guide