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openpower.foundation/content/specifications/isa.md

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Instruction Set Architecture isa false
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/wp-content/uploads/2016/05/PowerISAv3b1r01.pdf
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The Power Instruction Set Architecture (ISA) Version is a specification that describes the architecture used by POWER processors.
It defines the instructions the processor executes.

It is comprised of three books and a set of appendices.

  • Book I
    • Power ISA User Instruction Set Architecture, covers the base instruction set and related facilities available to the application programmer.
  • Book II
    • Power ISA Virtual Environment Architecture, defines the storage model and related instructions and facilities available to the application programmer.
  • Book III
    • Power ISA Operating Environment Architecture, defines the supervisor instructions and related facilities.