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GY27-7255-0
File No. 8370-36
OS/VS2
HASP II Version 4
Systems Logic
Program Number 370H-TX -001
VS2 SVS Release 1.7
Page of GY27-7255-0
Revised September 15, 1976
By TNL SN27-1555
First Edition (March, 1973)
This edition, as amended by technical newsletters SN25-0l22 and
SN27-l555, applies to HASP II Version 4.1 in support of OS/VS2,
SVS Release 1.7 and any subsequent versions of HASP and releases
of SVS unless otherwise indicated in new editions or technical
newsletters.
Information in this publication is subject to significant change.
Before using this publication, consult the latest IBM System/370
Bibliography, GC20-000l, and the technical newsletters that amend
the bibliography, to learn which editions and technical newsletters
are applicable and current.
Requests for copies of IBM publications should be made to the IBM
branch office serving your locality.
Forms for reader's comments are provided at the back of this publi-
cation. If the forms have been removed, comments may be addressed to
IBM Corporation, P.O. Box 50020, Programming Publishing, San Jose,
California 95150.
~Copyright International Business Machines Corporation 1973
PREFACE
Persons interested in determining sources of errors withln
or making changes to the internal logic of F~SP II Version 4
should read this publication. Readers must be familiar with
programming techniques and the operating principles of OS/VS2
Release 1.
This manual describes the purpose and function of HASP and its
relationship to OS/VS2 Release 1. It does not replace the pro-
gram listings; it supplements them and makes the information
in them more accessible.
This publication contains seven sections:
Section 1 Introduction - describes the general characteristics
and functions of HASP II Version 4.
Section 2 ~lethod of Operation - contains HIPO (Hierarchy
plus Input-Process-Output) diagrams that describe the
operation of HASP II Version 4. The diagrams are high
level and are designed to guide the reader to a particular
area of the program listing.
Section 3 Program Organization - describes the HASP general
program organization and each of the HASP processors.
Section 4 Directory - provides cross-reference lists.
Section 5 Data Areas - contains descriptions of the
interrelationship and content of HASP data areas and
control blocks.
Section 6 Diagnostic Aids - contains information necessary
for interpreting the program listing and diagnosing program
failures.
Section 7 Appendix A HASP Programmer Macros - describes HASP
macro instructions and their use.
Glossary - defines HASP terms.
Related OS/VS publications are listed in the IBM System/360
and System/370 Bibliography GA22-6822.
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Page of GY27-7255-0
Revised September 15, 1976
By TNL SN27-1555
Table of Contents
Section 1 HASP Introduction _ 1-1
HASP Introduction 1-3
specialized Direct-Access Storage Allocation