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File Number 8360-30
Order Number GC26-3794-0
Systems Reference Library
OS Data Management Macro Instructions
Release 21
This publication is intended for application programmers who are
writing programs in assembler language; it contains a brief
description of each macro instruction and a description of each
operand that can be specified in a macro instruction. Descriptions
of the macro instructions for the following data management access
methods are contained in this publication.
Basic Direct Access Method (BDAM)
Basic Indexed Sequential Access Method (BISAM)
Basic Partitioned Access Method (BP AM)
Basic Sequential A~~ess Method (BSAM)
Queued Indexed Sequential Access Method (QISAM)
Queued Sequential Access Method (QSAM)
This publication does not contain descriptions of macro instructions
for specialized application programs such as teleprocessing, graphics,
magnetic character readers, optical character reader-sorters, optical
character readers, or the time sharing option (TSO).
Before using this publication to code macro instructions, you should
be familiar with the information contained in the OS Data
Management Services Guide.
First Edition (February 1972)
This publication corresponds to OS Release 21. It contains the data management
macro instructions that were previously described in the IBM System/360 Operating
System: Supervisor and Data Management Macro Instructions publication,
GC28-6647-5, which is now obsolete. Supervisor macro instructions are now
described in the OS Supervisor Services and M aero Instructions publication,
GC28-6646.
The entire DCB macro instruction portion of this publication has been rewritten by
access method. Other changes are indicated by a vertical line to the left of the changed
text or figures.
Information in this publication is subject to change from time to time. Any such
change will be reported in subsequent revisions or technical newsletters. Before using
this publication in connection with the operation of IBM systems, consult the latest
SRL Newsletter, GN20-0360, for the editions that are applicable and correct.
Requests for copies of IBM publications should be made to your IBM representative or
to the IBM Branch Office serving your locality.
Forms are provided at the back of this publication for reader's comments. If they been
removed, comments may be addressed to IBM Corporation, Programming Publications,
Department D78, San Jose, California 95114.