Type ASSEMBLE
Source Lines : 1,621
Fixes Applied : 11
Most Recent Version : Thursday, December 7, 1978
Last Fix ID : [HRC075DK]

Module

       DMKDMP

Function

       TO WRITE A DUMP OF MAIN MEMORY, CONTROL REGISTERS, FLOATING
       POINT REGISTERS, GENERAL PURPOSE REGISTERS, CLOCKS, AND
       PREFIX REGISTER TO A PRESPECIFIED DUMP DEVICE

Attributes

       NON-REUSABLE, RESIDENT, STAND ALONE PROGRAM, ENTERED VIA A
       GOTO FROM DMKPSA AFTER A RESTART, FROM DMKSVC AFTER
       AN SVC 0, OR FROM DMKPRG

Operation

       1.  OBTAIN DUMP LOCK
       2.  STORE CLOCKS.
       3.  SAVE CONTROL AND FLOATING POINT REGISTERS.
       4.  SAVE PREFIX REGISTER.
       5.  SAVE ABEND CODE.
       6.  SAVE PROCESSOR ADDRESS.
       7.  IF ATTACHED PROCESSOR MODE AND RUNNING ON THE
           MAIN PROCESSOR, SIGNAL THE ATTACHED PROCESSOR TO
           STOP AND STORE STATUS AND GO TO STEP 9.
       8.  IF ATTACHED PROCESSOR MODE AND RUNNING ON THE
           ATTACHED PROCESSOR, SIGNAL THE MAIN PROCESSOR TO
           STOP AND STORE STATUS, SET UP THE RESTART PSW
           FOR STEP 9, SIGNAL THE MAIN PROCESSOR TO RESTART,
           AND SIGNAL SELF TO STOP.
       9.  SET UP ZERO PREFIX REGISTER.
      10.  SAVE LOW CORE.
      11.  SET PROGRAM, IO, AND MACHINE CHECK NEW PSWS.
      12.  DISABLE SOFT MACHINE CHECKS.
      13.  ENABLE CHANNEL 0.
      14.  ISSUE MESSAGE TO OPERATOR INDICATING ABEND CODE
           AND TIME OF DUMP.
      15.  GET REAL MACHINE SIZE.
      16.  LOCATE DUMP DEVICE RDEVBLOK PTR; IF ZERO USE THE FIRST
           PRINTER IN THE DMKRIOPR TABLE; IF NO PRINTERS ARE DEFINED
           IN THE TABLE LOAD A DISABLED WAIT STATE PSW.
      17.  GOTO APPROPRIATE DUMP DEVICE ROUTINE.

       OPERATION SECTION CONTINUED BELOW FOR EACH DUMP DEVICE TYPE

Calls to Other Routines

       DMKSCNRD             GET REAL DEVICE ADDRESS (CCU)