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RISC-V Instruction Set Manual, Volume I: RISC-V User-Level ISA , riscv-isa-release-1239329-2023-05-23-96-g1ee25e1 2023/09/27

1. "V" Standard Extension for Vector Operations, Version 1.0

The specification is currently hosted at https://github.com/riscv/riscv-v-spec.

The base vector extension is intended to provide general support for data-parallel execution within the 32-bit instruction encoding space, with later vector extensions supporting richer functionality for certain domains.