RSCS Module Entry Point Directory Module Name D8TNPT (cont.) D8TPST Entry
Points C088ANDS C!DPROC 8SGPROC 8SG HEADPREP 8AKEBLOC VMSB2CP AISGET TODEBCD PAR8GET NPTINIT NPTLINK NPTERROR NPTTER8 DMTPST DMTQRQ Function
Passes commands received from the remote card reader to
the RSCS command processor for execution. Executes commands passed to it in the CMDRESF buffer after an ALERT from D8TREI indicates a command has been
entered.
Unstacks messages from the task MSG queue and transmits
them to the remote terminal printer. Prepares and sends
requests to the specialized task REI to write console
messages.
Prepares and sends requests to the specialized task REI
to write console messages.
provides, one record after the other, the separator and
header for print files and the header card fer punch
files. Saves the caller's registers for a call to VMSE2CP. Upon return fro. VMSB2CP, it sets the return code and
returns to the original caller.
Deblocks the VM/370 spool page buffers into an unpacked
buffer (PACKBLK).
Requests the specialized task AIS to open, close, and
delete the spool files that the NPT task is processing.
Converts System/370 TOD to EBCDIC date and time. Scans character strings to find delimiter characters.
Initialization routine for NPT. NPT sign-on routine.
writes the terminal I/O error .essage and terminates
the task.
Terminates the NPT task.
A service routine that may be called from anywhere in RSCS. DMTPST signals the completion of an event by posting the event's associated synch lock. This routine
is entirely reentrant and does not change the state of
running PSi. Manages the MSUP supervisor status queue for other functions. DMTQRQ is for use within the supervisor and
be entered with all masks off (except machine check).
3-52 IBM VM/370: System Logic and Deterrnination--volume 3

Module Name DMTREX DMTSIG DMTSML Entry
Points DMTREX REIINIT REICYCLE REIPCHEX REIITERM REQXEQ DEACT MSG TERMINAT QUIESCE DMTSIG SMLINIT ISIO ASYNEIIT RSCS Module Entry Point Directory
Function
This routine is the controlling supervisor task and to­
gether with DMTCMX, DMTMGX, DMTSYS, DMTCOM, and DMTCRE make up the REX sUFervisor task. Performs the initialization for the DMTREX task.
Monitors a list of synch locks when looking for work
for DMTREX to perform.
Processes program checks.
Entered when RSCS initialization fails. Issues the in­
itialization failure message, dumps the contents of
main storage, types any remaining messages, and loads a
disabled wait state PSi. Scans the function table and calls the aFpropriate routine based on that code (either DMTCMX or DMTMGX). Deactivates the link table entry.
writes messages.
Ter.inates a specified task.
Becomes the task code for a task in the precess of
termination. Looks for any outstanding I/O for the
terminating task. If any outstanding I/O is found,
issues HIO and waits for completion. When all I/O is
completed, it terminates the task.
Performs a task alert exit for a requesting task.
Functions as an RJE work station into a remote system
using the MULTI-LEAVING transmission protocol. It can
also function as a host tc a remote programmable werk
station supporting a System/370, System/3, Model 20,
1130, or a 2922.
Initializes various parameters needed by DMTSML. Saves
the link table address, initializes output tags, and
constructs the sign-on card from information in the
operand field of the START command.
Performs the enable sequence on the communications
line analyzes the response received. If the resFonse is
correct, writes the line connected message.
This is the alert exit entered by DMTSIG. Two tasks may alert this line driver: • DMTREX--When a command has been entered for pro­
cessing by the DMTSML line driver. • DMTIXS--When DMTIXS must asynchronously notify DMTSML that a file has arrived for transmission.
RSCS Directories 3-53
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