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CALL/360 - OS PL/I
System Manual - Volume I
Program Number 360A-CX-45X


The CALL/360-0S PL/I compiler (to be used with
the CALL/360-0S system on an IBM System/360
Model 50 or higher) is described in the four
volumes of this publication. The publication
is addressed to system programmers and program
systems representatives who require a detailed
knowledge of the compiler. It contains a
general overview of the compiler and detailed
information on the compiler and runtime routines
and macros that perform required functions.
Additional information required to und~rstand
CALL/360-0S PL/I compiler operations is provided
in several appendices.

Volume I contains a general description of
the compiler, a section on compiler operations,
and a directory to compiler routines.
PREFACE




This four-volume publication is addressed to system programmers and
program systems representative who require a detailed knowledge of
the CALL/360-0S PL/I compiler. It contains a general overview of the
compiler and information on the compiler and runtime routines and
macros that perform required functions.
Additional information required to understand CALL/360-0S PL/I compiler
operations is provided in several appendices (see Volume IV). Appendix
J contains tables of macro/module calls and summary listings of
CALL/36o-0S compiler and runtime routines, indicating where each routine
is described in this publication.
The reader of this manual should have access to the CALL/360-0S PL/l
Language Reference Manual (GB20-0100) and the CALL/360-0S Terminal
Operations Manual (GB20-0181).

Terminal Equivalence
Terminals which are equivalent to those explicitly supported may also
function satisfactorily. The customer is responsible for establishing
equivalency. IBM assumes no responsibility for the impact that any
changes to the IBM-supplied products or programs may have on such
terminals.




second Edition (January 1911)
This edition, GY20-0561-1, is a major revision obsoleting GY20-0561-0.
It applies to Version 1, Modification Level 1, of CALL/360-0S and to
all subsequent versions and modifications until otherwise indicated
in new editions or Technical Newsletters.
Technical changes to text are indicated by vertical lines in the left
margin. A revised illustration or chart is indicated by the symbol