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ISA Manuals

Instruction Set (ISA) Manual's​

These are the current ratified versions of the ISA specifications. Previously published versions and the original ratification specifications for included extensions can be found on the RISC-V Technical Specifications Archive page.

ISA Volume I

Unprivileged Architecture

Volume II

Privileged Architecture

note

Extensions that are ratified, but not yet included in the full specifications, can be found on the RISC-V Ratified Extensions page.