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GA22-7072-0
IBM System/370
Systems Extended Facilitf
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Preface
This publication describes the IBM System/370 extended
facility or feature, which is available on all processor
complexes and some models of System/370.
This manual is intended for system programmers and IBM
Field Engineering personnel. The reader should be familiar
with the general machine functions of System/370, as
described in the IBM Systemj370 Principles of Operation,
GA22-7000, and with the MVS system.
The following reading is considered corequisite:
IBM Virtual Machine Facilityj370 System Extensions Gen-
eral Information Manual, GC20-1827
MVSjSystem Extensions: Debugging Handbook (Volume
2), SD23-OOO2
OSjVS2 Data Areas, SYB8-0606. (This document is on
microfiche)
OSjVS2 MVSjSystem Extensions General Information
Manual. GC28-0872
OSjVS2 System Logic Library, Volumes 1-7, SBOF-8210
FintEdition (January 1978)
Changes are continUally made to the specifications herein; before using this
publication in oonnection with operation of IBM equipment. refer to the IBM
System!370 Bibliography, GC20-OO01, for editions that are applicable and
current.
Publications are not stocked at the address given below; requests for IBM
publications should be made to your IBM representative or to the IBM branch
office serving your locality., ",-' ___ " ",~ ' .
. . '
A fonn for reader's cOmments is providediat the back of this publication .. If the
fonn has been removed. comments may be- addressed to IBM Corporation,
Product Publications, Department 898. POBox 390. Poughkeepsie, N.Y., U.s.A.,
12602. Comments beoome the property of IBM.