Type ASSEMBLE
Source Lines : 1,004
Fixes Applied : 11
Most Recent Version : Thursday, December 7, 1978
Last Fix ID : [HRC071DK]

Module

       DMKDIB

Function

       DMKDIBSM WILL SIMULATE SENSE DATA AND STATUS FOR VIRTUAL
       I/O TO A SIMULATED I/O DEVICE (2702 LINE OR CTCA) WHICH
       HAS NOT YET BEEN 'ACTIVATED' THROUGH EITHER THE CONSOLE
       FUNCTION 'DIAL' (FOR 2702 LINES) OR THE CONSOLE FUNCTION
       'COUPLE' (FOR VIRTUAL CTCA'S).

Operation

       DMKDIBSM EXAMINES EACH CCW IN THE CCW STRING TO DETERMINE
       WHAT STATUS AND/OR ACTION SHOULD BE TAKEN TO SIMULATE THE
       ACTUAL OPERATION OF THE SIMULATED DEVICE BEING PROCESSED.
       FOR A NOT-YET-DIALED 2702 LINE:
             A. IF CCW IS A SENSE, SIMULATE SENSE DATA, ADVANCE
             B. IF CCW IS A NO-OP, ADVANCE
             C. IF CCW IS AN ENABLE, SET UP FOR PROCESSING BY D
                'DMKDIAL' WHEN 'DIAL' COMMAND IS ISSUED.
             D. IF CCW IS NONE OF THE ABOVE, PRESENT UNIT CHECK,
                INTERVENTION REQUIRED.
       FOR AN ALREADY-DIALED LINE: (CCW STRING CONTAINS A DISABLE)
             A. IF CCW IS NOT A DISABLE, ADVANCE
             B. IF CCW IS A DISABLE, CALL DMKDIBDR TO DROP LINE
                AND RESUME PROCESSING AS IF LINE IS NOT DIALED
       FOR A NOT-YET-COUPLED CTCA:
             A. IF CCW IS A SENSE, SIMULATE SENSE DATA, ADVANCE
             B. IF CCW IS A NO-OP, ADVANCE
             C. IF CCW IS NONE OF THE ABOVE, PRESENT UNIT CHECK,
                INTERVENTIONREQUIRED.
       FOR ALL CASES, AN INVALID CCW WILL CAUSE A PROGRAM CHECK
       A SENSE INTO PROTECTED CORE WILL CAUSE A PROTECTION CHECK
       2702 LINES NEVER PRODUCE CC = 1 TO SIO, CTCA'S WILL.

Calls to Other Routines

       DMKSTKIO - TO STACK THE IOBLOK FOR HANDLING BY DMKVIO
       DMKFREE  - TO OBTAIN STORAGE FOR AN IOERBLOK, IF NEEDED
       DMKDIBDR - TO DROP A DIALED LINE                      @VA13704