Difference between revisions of "Power ISA"

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|+Key to Version column in Power ISA 3.0B instruction list
 
|+Key to Version column in Power ISA 3.0B instruction list
 
!Code
 
!Code
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!Explanation
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!Introduced in
 +
!Implemented by
 
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|P1||Instruction introduced in the POWER Architecture.
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|P1|| POWER Architecture
 
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|-
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|P2||Instruction introduced in the POWER2 Architecture.
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|P2||POWER2 Architecture
 
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|-
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|PPC||Instruction introduced in the PowerPC Architecture prior to v2.00.
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|PPC||PowerPC Architecture prior to v2.00
 
|-
 
|-
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|v2.00||Instruction introduced in the PowerPC Architecture Version 2.00.
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|v2.00||PowerPC Architecture v2.00
 
|-
 
|-
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|v2.01||Instruction introduced in the PowerPC Architecture Version 2.01.
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|v2.01||PowerPC Architecture v2.01
 
|-
 
|-
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|v2.02||Instruction introduced in the PowerPC Architecture Version 2.02.
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|v2.02||PowerPC Architecture v2.02
 
|-
 
|-
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|v2.03||Instruction introduced in the Power ISA Architecture Version 2.03.
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|v2.03||Power Architecture v2.03
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|[[PPC405]], PPC440, PPC460, PPC970, Cell PPE, e200, e500, POWER5
 
|-
 
|-
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|v2.04||Instruction introduced in the Power ISA Architecture Version 2.04.
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|v2.04||Power Architecture v2.04
 
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|-
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|v2.05||Instruction introduced in the Power ISA Architecture Version 2.05.
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|v2.05||Power Architecture v2.05
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|POWER6
 
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|-
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|v2.06||Instruction introduced in the Power ISA Architecture Version 2.06.
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|v2.06||Power Architecture v2.06
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|e5500, POWER7
 
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|-
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|v2.07||Instruction introduced in the Power ISA Architecture Version 2.07.
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|v2.07||Power Architecture v2.07
 +
|e6500, [[POWER8]]
 
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|-
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|v3.0||Instruction introduced in the Power ISA Architecture Version 3.0.
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|v3.0||Power Architecture v3.0
 
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|v3.0B||Instruction introduced in the Power ISA Architecture Version 3.0B.
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|v3.0B||Power Architecture v3.0B
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|[[POWER9]]
 
|}
 
|}
  

Revision as of 10:34, 15 March 2019

Power ISA is the specification for how Power architecture processors are to behave. It dictates the machine instructions available, and exactly how they are to process given data.

There are two primary versions of the Power ISA that are of interest to PowerNV platforms:

History

The Power ISA evolved from the PowerPC ISA which in turn was an evolution of the POWER ISA used by POWER1 and POWER2 chips.

POWER ISA → PowerPC ISA → Power ISA

When the Power ISA 3.0B specification lists all available instructions, it specifically mentions what version of which architecture introduced the instruction; this gives a fairly quick history of the ISA itself:

Key to Version column in Power ISA 3.0B instruction list
Code Introduced in Implemented by
P1 POWER Architecture
P2 POWER2 Architecture
PPC PowerPC Architecture prior to v2.00
v2.00 PowerPC Architecture v2.00
v2.01 PowerPC Architecture v2.01
v2.02 PowerPC Architecture v2.02
v2.03 Power Architecture v2.03 PPC405, PPC440, PPC460, PPC970, Cell PPE, e200, e500, POWER5
v2.04 Power Architecture v2.04
v2.05 Power Architecture v2.05 POWER6
v2.06 Power Architecture v2.06 e5500, POWER7
v2.07 Power Architecture v2.07 e6500, POWER8
v3.0 Power Architecture v3.0
v3.0B Power Architecture v3.0B POWER9

See also

External Links

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