RISC-V ISA Specifications
The specifications shown below represent the current, ratified and published releases from GitHub.
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Volume 1, Unprivileged Specification version 2025-04-15 [PDF] [ePub]
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Volume 2, Privileged Specification version 2025-04-15 [PDF] [ePub]
Note this is a shortcut page to view RISC-V ISA specifications. Please check the latest official documents from riscv.org.