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openpower.foundation_sw_dev/content/specifications/powerisa31.md

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POWER Instruction Set Architecture 3.1 2021-08-30 true

The Power Instruction Set Architecture (ISA) Version 3.1 is a specification that describes the architecture used for the IBM POWER10 processor.
It defines the instructions the processors execute.
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.