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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Chapter 3. z/VSE overview 89
With z/VSE Version 4, there is a distinction between the size of real processor
storage and the maximum size of an address space. z/VSE V4 implements 64-bit
addressing for real processor storage. However, while the theoretical size of
processor storage is 16 exabytes, z/VSE Version 4 Release 1 supports up to
8 GB of real processor storage. The maximum virtual address space remains
2 GB, as shown in Figure 3-9.
Figure 3-9 Storage map of z/VSE virtual address space
A program running on z/VSE V4 can run with 24-bit or 31-bit addressing (and can
switch among these if needed).
3.4.9 What is meant by below-the-16-MB-line ...
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