From WikiChip
Difference between revisions of "z-architecture"

Line 1: Line 1:
 
{{ibm title|z/Architecture}}
 
{{ibm title|z/Architecture}}
 
'''z/Architecture''' is a {{arch|64}} [[big-endian]] [[instruction set architecture]] introduced by [[IBM]] in October [[2000]] as an extension and successor to the IBM {{ibm|ESA/390}}.
 
'''z/Architecture''' is a {{arch|64}} [[big-endian]] [[instruction set architecture]] introduced by [[IBM]] in October [[2000]] as an extension and successor to the IBM {{ibm|ESA/390}}.
 +
 +
== Overview ==
 +
The z/Architecture was introduced in 2000 with the introduction of the {{ibm|zSeries 900}. The ISA was designed as an extension to the {{ibm|ESA/390}} and features 64-bit registers, 64-bit operations, and a 64-bit virtual and real address space. Development for z/Architecture in 1996 when IBM determined the ESA/390 had to be extended to 64-bit to overcome its limitations. The new architecture increased the 31-bit address to 64 bit, enough to address 16 [[exbibytes]].
 +
 +
{{expand section}}
 +
 +
 +
 +
{{stub}}

Revision as of 14:46, 19 July 2017

z/Architecture is a 64-bit big-endian instruction set architecture introduced by IBM in October 2000 as an extension and successor to the IBM ESA/390.

Overview

The z/Architecture was introduced in 2000 with the introduction of the {{ibm|zSeries 900}. The ISA was designed as an extension to the ESA/390 and features 64-bit registers, 64-bit operations, and a 64-bit virtual and real address space. Development for z/Architecture in 1996 when IBM determined the ESA/390 had to be extended to 64-bit to overcome its limitations. The new architecture increased the 31-bit address to 64 bit, enough to address 16 exbibytes.

New text document.svg This section requires expansion; you can help adding the missing info.


Text document with shapes.svg This article is still a stub and needs your attention. You can help improve this article by editing this page and adding the missing information.
Retrieved from "https://en.wikichip.org/w/index.php?title=z-architecture&oldid=55399"