Vector Extensions

Concept

Vector Extensions are treated in the provided evidence as a RISC-V processor feature area requiring targeted verification and coverage closure. In RISC-V verification flows, ImperasTS-VECT provides directed test suites for vector extensions, complementing constrained-random stimulus and helping close coverage gaps.

First seen 5/26/2026

Last seen 5/26/2026

Evidence 2 chunks

Wiki v1

WIKI

Overview

Vector Extensions are identified in the evidence as a RISC-V processor feature area that verification teams may need to validate explicitly. They appear alongside other RISC-V features and specification areas such as MMU, PMP, ePMP, and hypervisor support in verification planning and compliance-oriented flows. [C1]

Role in RISC-V verification

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NEIGHBORHOOD

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RELATIONSHIPS

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RISC-V ISA part of → 93% 2e

Vector extensions are an optional part of the modular RISC-V ISA.

ImperasTS-VECT ← evaluates 99% 1e

ImperasTS-VECT provides targeted directed suites for verifying vector extensions.

LINKED ENTITIES

4 links

RISC-V feature_area_of The evidence discusses vector extensions in the context of RISC-V processor verification and RISC-V profiles/features.

ImperasTS-VECT validated_by_targeted_suite The evidence explicitly states that ImperasTS-VECT provides targeted suites for vector extensions.

ImperasTS uses_directed_tests_for The evidence identifies ImperasTS as a family of directed suites that includes TS-VECT for vector extensions.

Coverage Closure supports The evidence recommends applying targeted ImperasTS suites for vector extensions where coverage gaps remain, within a hybrid coverage-closure flow.

CITATIONS

6 sources

6 citations — click to expand

[1] Vector extensions are identified as a RISC-V feature/specification area covered by verification flows. source

[2] ImperasTS-VECT is a targeted test suite for vector extensions. source

[3] Hybrid RISC-V verification combines constrained-random stimulus with directed tests to close coverage gaps. source

[4] The vector, MMU, PMP, and ePMP test suites are configured to match the user's RISC-V processor. source

[5] Targeted ImperasTS suites should be applied for vector extensions where coverage gaps remain. source

[6] The described verification methodology includes portability across simulation, emulation, FPGA prototyping, and silicon. source