PSS 3.1 Public Review Now Open

The Portable Stimulus Standard (PSS) 3.1 Draft Standard is available for public review, giving the design and verification community an opportunity to review the latest enhancements to PSS and provide feedback before its release.

PSS 3.1 is a focused release that builds on the capabilities of PSS 3.0, with updates concentrated in four key areas:

• A stronger constraint language – Enhancements that provide greater flexibility and control when defining constraints.
• More reusable libraries – Improvements that make it easier to create practical, reusable PSS libraries that can be shared across projects and teams.
• Greater control over generated target code – New capabilities that give models more control over what is produced for target implementations.
• Address spaces and registers – Updates that close gaps and strengthen modeling capabilities in the address and register layer.

The public review provides an opportunity for the industry to evaluate the specification and provide feedback before it is finalized. The Portable Stimulus Working Group invites comments and feedback through its Community Forum.

The document is available for download at Accellera's Drafts Under Public Review page. The public review period is open until September 30, 2026. For more information about PSS and the development of the standard, visit the Portable Stimulus Working Group page.

 

PSS Training Session 13 Now Available!

How Do the PSS Memory Access API and Executors Enable Portable Execution?

In Session 13 of Accellera’s “Learning PSS” video series, Tom Fitzpatrick, PSS expert and charter member of Accellera’s Portable Stimulus Working Group, explores the PSS Memory Access API and executors and how they help bridge the abstract PSS model with target-specific implementations.

Learn how PSS uses address handles to keep memory operations independent of final numeric addresses, and how executors allow elements of a portable model to run on specific agents in the target environment.

In this session, you’ll learn:

• How address handles separate abstract memory allocation from concrete target addresses
• How the Memory Access API provides portable read and write operations
• How executors represent runtime agents such as processors, BFMs, and transactors
• How executor claims and traits allow the solver to select compatible target executors
• How executors map portable API calls to the appropriate target-specific implementation
• How resources can control shared or exclusive access to executors
• How separating the abstract and realization layers helps maximize PSS model portability and reuse

Watch Session 13 to learn how address handles, the Memory Access API, executors, claims, and resources work together to keep verification intent portable while supporting target-specific execution.

Continue the series with the next session, covering PSS registers.

For details about PSS and other resources, visit the Portable Stimulus Working Group page.

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