Rses Module Entry Point Directory Module Name DMTDSP DMTEXT DMTGIV DMTINI DMTION DMTLAX Entry
PointsDMTDSP DMTEXT DMTGIV DMTINI DMTION DMTLAX Function
This .odule is theMSUP dispatcher. It is entered when
an exit occursfrom sUFervisor functions that were
entered following an interruption or thatissued the
freeze sve function.DMTDSP must be entered with all PSi masks off (except
for the machine check mask).
This module is theMSUP external interruption handler. DMTEXT receives control directly on an external inter
rupt and saves the status of the executing task ifone was interrupted.
This is a supervisor service routine that enqueuesGIVE requests from tasks to be delivered to other tasks by DMTAKE. Receives control after initial loading of RSes, and
performs general initiali2ation functions that are co.
mon to all parts of Rses.DMTINI writes a copy of the initial load to DASD, ac
cording to operator instructions, when Rses is initial
program loaded from the generation IPL deck.When ititial program loaded from disk, DMTIBI finishes
reading the saved Rses load.When IPL disk reading or writing is comlete, DMTINI initializes Rses storage areas.
This module contains both theMSUP I/O interrupt
handler and the task I/O service routine. The I/O
service providedby DETIOM to the task Irogra.s includes sequential subchannel scheduling, channel pro gram execution, auto.atic sense executionon unit check
when requested, retrun of all pertinent infor.ation re
the execution of the channel progra., and notification
via aPOST upon completion of the channel prograa.
This routine is the line allocation task for Rses. The
major part of this routine functions as an asynchronous
exit being alerted byDftTREX. 3-50 IBM VM/370: System Logic and Problem Deteraination--Volu.e 3
Points
This .odule is the
an exit occurs
entered following an interruption or that
freeze sve function.
for the machine check mask).
This module is the
rupt and saves the status of the executing task if
This is a supervisor service routine that enqueues
performs general initiali2ation functions that are co.
mon to all parts of Rses.
cording to operator instructions, when Rses is initial
program loaded from the generation IPL deck.
reading the saved Rses load.
This module contains both the
handler and the task I/O service routine. The I/O
service provided
when requested, retrun of all pertinent infor.ation re
the execution of the channel progra., and notification
via a
This routine is the line allocation task for Rses. The
major part of this routine functions as an asynchronous
exit being alerted by