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File Number S360-32
Form C24-5042-l
TOS
I
I

Systems Reference Library

IBM System/3S0
Disk and Tape Operating Systems
Utility MacrDs SpecificatiDns

'Ehis reference publication describes Multi-
Droaram~ina SUDDort (MPS) Utilitv Macro-
Instructio~s f~~ use 'with the Di;k a~d-Tape
Operating Systems. The reader should be
familiar with the following pUblications:

1. IBM System/360 Disk Operating System,
System Control and System Service
Programs, Form C24-5036.

2. IBM System/360 Tape Operating System,
System Control and System Service
Programs, Form C24-5034.

3. IBM System/360 Disk Operating System,
Supervisor and Input/Output Macros,
Form C24-5037.

4. IBM System/360 Tape Operating System,
Supervisor and Input/Output Macros,
Form C24-5035.

5. IBM System/360 Disk and Tape Operating
Systems Assembler Specifications,
Form C24-34l4.

6. For titles and abstracts of other
associated publications! see tlle IBM
System/360 Bibliography, Form A22-6822.
PREFACE

This reference publication describes the Multiprogramming Support (MPS)
utility macro-instructions available with the Disk and Tape Operating
Systems.

It is intended as a guide for the programmer using the utility macro-
instructions to create simple file-to-file routines for operation in a
multiprogramming environment under the Disk or Tape Control Programs, as
described in the System Control and System Service publications listed
on the cover page of this publication.

This publication deals with utility macro-instructions, source lan-
guage program illustrations for generating a utility program via these
macro-instructions, and the process for the assembly and initiation of
generated utility programs.

Second Edition, October 1966

This edition, Form C24-5042-1, is a major reV1Slon of, and obsoletes,
Form C24-5042-0. Changes are indicated by a vertical line to the left
of the affected text and to the left of affected parts of figures. A
dot (e) next to a figure title or page number indicates that the entire
figure or page should be reviewed.

Pages that have been affected are: 1, 2, 5, 7, 9, 11-26, 28-37, 39,
41 and 42.

Significant changes and additions to the specifications contained in
this publication will be reported in subsequent revisions or Technical
Newsletters.

Requests for copies of IBM publications should be made to your IBM
representative or to the IBM branch office serving your locality.

A form is provided at the back of this publication for readers' comments.
If the form has been removed, comments may be addressed to IBM Corporation,
Programming Publications, Endicott, New York 13760