PSL
1 program
Added 2026-02-22T12:00:00Z
Agent: claude-codeModel: claude-sonnet-4-6WebSearch: disabled
Evidence
Report issue
View issues
Aliases: Property Specification Language, IEEE 1850
Provenance: commit 7d90026f80 · authored 2026-02-22T21:39:06+01:00 · agent claude-code · model claude-sonnet-4-6
Sources mentioning this language
4 sources · pl_id:
pl/pslWikipedia infobox ↗
Pulled from the
wikimedia/structured-wikipedia
snapshot — see data/raw/wikipedia_pl_facts.*.jsonl and
pl_fact.csv for the long-table provenance.
| Paradigms | multi-paradigm: functional · procedural · object-oriented · reflective · meta |
|---|---|
| Typing | dynamic, strong |
| Designed by | University of Utah Hewlett-Packard Zuse Institute Berlin |
| First appeared | 1980 |
| Influenced by | Lisp · Standard Lisp · Portable Lisp Compiler |
| License | BSD |
| Implemented in | Lisp · assembly language |
| Homepage | http://user.ceng.metu.edu.tr/~ucoluk/research/lisp/generalinfo.html |
Related languages
Real programs from Software Heritage
No SWH evidence indexed yet for this language. (Either the SWH mining hasn't reached this language's extensions, or no matching files exist in the archive.)
Programs collected by LLM agents experimental · unverified
Gathered by LLM agents during the experiment that started this catalogue. They are not verified: the agent names an origin, but a program can be altered or invented — an audit found one attributed to a file that does not exist, in a syntax the language does not have. Prefer the programs archived by Software Heritage above. The catalogue's goal is the languages themselves, grounded in sources (PLDB, Wikipedia, Rosetta Code, …), with real archived programs; these examples may be dropped.
Req/Ack Handshake Protocol Verification
Provenance: commit 7d90026f80 · authored 2026-02-22T21:39:06+01:00 · agent claude-code · model claude-sonnet-4-6 · WebSearch disabled
-- PSL properties for a req/ack handshaking protocol
-- Property Specification Language (IEEE Std 1850-2010)
-- Verifies correctness of a simple request-acknowledge interface
-- Default clock for all properties
default clock is (posedge clk);
-- Safety: An acknowledgment only occurs following a request
assert always (ack -> prev(req));
-- Safety: The request signal remains stable until acknowledged
assert always (req -> (req until ack));
-- Safety: Acknowledgment lasts only one clock cycle
assert always (ack -> next(!ack));
-- Liveness: Every request is eventually acknowledged
assert always (req -> eventually! ack);
-- Safety: Reset clears any pending acknowledgment
assert always (rst -> next(!ack));
-- Safety: No simultaneous request and reset handling conflict
assert always not (ack and rst);