ibm:vm370-lib:cms:dmsor3.assemble_abs
Table of Contents
DMSOR3 Abstract
Statistics
Type ASSEMBLE
Source Lines : 384
Fixes Applied : 0
Most Recent Version : Tuesday, December 12, 1978
Last Fix ID : [Unmodified]
Synopsis
Module
DMSOR3 * *
Function
THE FUNCTION OF DMSOR3 IS TO RELOCATE ALL DTF TABLE * ADDRESS CONSTANTS FROM THE ASSEMBLED ADDRESSES TO * EXECUTABLE STORAGE ADDRESSES. THIS IS ACCOMPLISHED BY * SUBTRACTING FROM THE BAL ADDRESS PROVIDED BY THE * OPENR MACRO IN REGISTER 0 A FOUR BYTE ASSEMBLED * ADDRESS CONSTANT OF THE BAL ADDRESS. ANY DIFFERENCE * INDICATES THAT THE PROGRAM HAS BEEN RELOCATED. * RELOCATION IS PERFORMED FOR UNIT RECORD DTFS. * *
Attributes
DISCONTIGUOUS SHARED SEGMENT * REENTRANT * *
Operation
DMSOR3 PERFORMS THE FOLLOWING FUNCTIONS: * 1. DETERMINES IF RELOCATION IS RE- * QUIRED. IF NOT EXIT IS MADE TO * $$BOPEN TO OPEN THE FILE. * * 2. DETERMINES WHAT DTF TYPE IS THE * OBJECT OF THE OPENR MACRO. * * MODIFIES THE ADCONS IN THE * UNIT RECORD DTFS. * * 3. AN SVC 2 (FETCH) FOR DMSOR2 IS * ISSUED FOR DTFCP OR DTFDI DTFS. * * 3. A CHECK IS MADE TO SEE IF MORE * FILES REMAIN TO BE OPENED. IF * SO, ADDRESS MODIFICATION IS PER-* FORMED ON THOSE DTFS AND THEN AN* SVC 2 IS ISSUED TO FETCH $$BOPEN*
Calls to Other Routines
DMSBOP (SVC 2) * DMSOR2 (SVC 2) TO MODIFY DTFCP/DTFDI ADCONS * *
ibm/vm370-lib/cms/dmsor3.assemble_abs.txt ยท Last modified: 2023/08/06 13:35 by Site Administrator