Type ASSEMBLE
Source Lines : 125
Fixes Applied : 0
Most Recent Version : Thursday, December 7, 1978
Last Fix ID : [Unmodified]

Module

       DMTQRQ

Function

        THE DMTQRQ  MODULE MANAGES  THE MSUP  SUPERVISOR
        STATUS QUEUE FOR OTHER MSUP FUNCTIONS. DMTQRQ IS
        INTENDED  FOR  USE  ONLY   WITHIN  THE  SUPERVISOR
        ITSELF, AND MUST BE ENTERED WITH ALL PSW MASKS OFF
        (EXCEPT MACHINE CHECK).

Attributes

       REUSABLE

Operation

       THE RELEASE OR 'FREE' FUNCTION OF DMTQRQ ENQUEUES
       THE ELEMENT SPECIFIED BY THE CALLER TO BE RELEASED
       ON THE QUEUE OF FREE SUPERVISOR ELEMENTS, AND
       RETURNS WITHOUT ANY POSSIBLE ERROR CONDITIONS.

       THE RESERVE OR 'GET' FUNCTION OF DMTQRQ DEQUEUES
       THE FIRST ELEMENT ON THE FREE SUPERVISOR ELEMENT QUEUE
       AND RETURNS IT'S ADDRESS TO THE CALLER IN GPR1.
       IF NO FREE ELEMENT IS AVAILABLE, AN ERROR CODE IS
       RETURNED TO THE CALLER IN GPR15.

Calls to Other Routines

       NONE