March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
Content preview from Introduction to the New Mainframe: z/VSE Basics
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Appendix D. Programming experience 445
Understanding the key scenarios
To communicate with LE/VSE and other applications in a common run-time
environment, Assembler applications must preserve the use of certain registers
and storage areas. There are several LE/VSE-provided programming facilities
that support the use of these conventions or help to code your programs.
The CEEENTRY/CEETERM macro support provides assistance in entry and
exit coding of Assembler routines, mapping of fields and communication
areas.
The pre-initialization service CEEPIPI suits for Assembler driver programs
that do not have established a common run-time environment, however,
intend to call high-level language routines.
Assembler routines that are coded in betw ...
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