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POWER2
POWER2 MCM
General information
Launched
1993
Designed by
IBM
Architecture and classification
Instruction set
POWER ISA
History
Predecessor
POWER1
Successor
POWER3
POWER, PowerPC, and Power ISA architectures
NXP (formerly Freescale and Motorola)
PowerPC e series (2006)
e200
e300
e500
e600
e5500
e6500
Qor series (2008)
QorIQ
Qorivva
IBM
Power series (1990)
POWER1
POWER2
POWER3
POWER4
POWER5
POWER6
POWER7
POWER8
POWER9
Power10
PowerPC series (1992)
6xx
4xx
7xx
74xx
970
A2 (2010)
A2I
A2O
RAD series (1997)
RAD6000
RAD750
RAD5500
RS64 series (1996)
IBM/Nintendo
Gekko
Broadway
Espresso
Other
Titan
PWRficient
Cell
Xenon
X704
Related links
OpenPOWER Foundation
AIM alliance
RISC
Blue Gene
Power.org
PAPR
PReP
CHRP
AltiVec
Cancelled in gray, historic in italic
v
t
e
The POWER2, originally named RIOS2, is a processor designed by IBM that implemented the POWER instruction set architecture. The POWER2 was the successor of the POWER1, debuting in September 1993 within IBM's RS/6000 systems. When introduced, the POWER2 was the fastest microprocessor, surpassing the Alpha 21064. When the Alpha 21064A was introduced in 1993, the POWER2 lost the lead and became second. IBM claimed that the performance for a 62.5 MHz POWER2 was 73.3 SPECint92 and 134.6 SPECfp92.
The open source GCC compiler removed support for POWER1 (RIOS) and POWER2 (RIOS2) in the 4.5 release.[1]
^"GCC 4.5 Release Series — Changes, New Features, and Fixes - GNU Project - Free Software Foundation (FSF)". gcc.gnu.org.
The POWER2, originally named RIOS2, is a processor designed by IBM that implemented the POWER instruction set architecture. The POWER2 was the successor...
floating point operations. POWER2 – 6 to 8 chips were mounted on a ceramic multi chip module POWER2+ – a cheaper 6-chip version of POWER2 with support for external...
processors are called POWER1 (RIOS-1, RIOS.9, RSC, RAD6000) and POWER2 (POWER2, POWER2+ and P2SC). The ISA evolved into the PowerPC instruction set architecture...
declaration #pragma weak power2 int power2(int x); // function declaration int __attribute__((weak)) power2(int x); // or int power2(int x) __attribute__((weak));...
the RS/6000 series. However, applications which rely on early RS/6000's POWER2 processor and Micro Channel bus are incompatible with the ANS's PowerPC...
special features not in the PowerPC specification, mainly derived from POWER2[citation needed] and the original AS/400 processor, and has been 64-bit...
5 MHz. In September 1993, the POWER1 and its variants was succeeded by the POWER2 (known briefly as the "RIOS2"), an evolution of the POWER1 microarchitecture...
instructions of the ISA (at the time) such as instructions present in the POWER2 version of the POWER ISA but not in the PowerPC ISA. It was introduced on...
floating point units (FPUs) during the 1990s (such as the MIPS R8000, IBM POWER2), and Weitek eroded the demand for this class of computer. The industry...
muscle Wasting in patiEnts with Cancer 1 and 2 (POWER1 (NCT01355484) and POWER2 (NCT01355497)). [...] The co-primary endpoints of this trial were lean body...
workstation in October 1993 (alongside its more powerful multichip cousin IBM POWER2 line of processors) and the first Apple Power Macintoshes on March 14, 1994...
Global Information
