Table of Contents

DMKSCN Abstract

Statistics

Type ASSEMBLE
Source Lines : 1,539
Fixes Applied : 2
Most Recent Version : Thursday, December 14, 1978
Last Fix ID : [R11217DK]

Synopsis

Module 

       DMKSCN

Function 

       TO RETURN TO THE CALLER THE ADDRESSES OF THE REAL CHANNEL,
       CONTROL UNIT, AND DEVICE BLOCKS FOR A GIVEN REAL DEVICE.

Attributes 

       REENTRANT, RESIDENT, CALLED VIA BALR

Operation 

       1. THE CHANNEL BITS OF THE REAL DEVICE ARE INDEXED BY
       DMKRIOCT AND DMKRIOCH TO PRODUCE THE ADDRESS OF THE REAL
       CHANNEL BLOCK (RCHBLOK) IN GPR 6 (IF IT EXISTS).

       2. THE CONTROL UNIT BITS OF THE REAL DEVICE ARE INDEXED BY THE
       RCHBLOK (FROM STEP 1) AND DMKRIOCU TO PRODUCE THE ADDRESS OF
       THE REAL CONTROL UNIT BLOCK (RCUBLOK) IN GPR 7 (IF IT EXISTS).

       3. THE DEVICE BITS OF THE REAL DEVICE ARE INDEXED BY THE
       RCUBLOK (FROM STEP 2) AND DMKRIODV TO PRODUCE THE ADDRESS OF
       THE REAL DEVICE BLOCK (RDEVBLOK) IN GPR 8 (IF IT EXISTS).

Calls to Other Routines 

       NONE