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Y26-3598-0
Program Logic
IBM SYSTEM/360 OPERATING SYSTEM
ASSEMBLER (32K)
PROGRAM LOGIC MANUAL
This publication describes the internal logic of the
32K Assembler for IBM System/360 Operating System.
It is intended for use by persons involved in
program maintenance, and system programmers who
are altering the program design. Program Logic
information is not necessary for the use and
operation of the program; therefore, distribution
of this publication is limited to those with the
aforementioned requirements.
RESTRICTED DISTRIBUTION -- SEE ABSTRACT
PREFACE
PREREQUISITE AND RELATED LITERATURE
Effective use of this Program Logic
Manual (PLM) requires a thorough
The Introduction describes the purpose
of the program, its relationship to the
Operating System, the I/O devices required
to perform the program, and the program
I
understanding of the contents of the organization.
publication IBM Operating System/3~ The phase descriptions describe the
Assembler Language (Form C28-6Sl4). phase logic and functions performed by
the phase. The labels in the 'Routine
DESIGN OF' THIS PUBLICATION Description' portion of each phase are
arranged alphabetically, assuming that
This PLM supplements the program listing. the user will be coming to the descrip-
Labels on flowcharts are keyed to the tions from a flowchart, looking for an
program listing. explanation of a label encountered in one
This manual consists of an introduction, of the flowcharts.
two sections containing detailed infor- The reference section of the manual
mation about the various phases, and a consists of flowcharts, appendixes, and a
section of reference material. glossary of terms.
Copies of this and other IBM publications can be obtained through IBM
Branch Offices. A form has been provided at the back of this publication
for reader's comments. If the form has been detached, comments may be
directed to: IBM Corporation, Programming Publications, Department 232,
San Jose, California 95114.