PLEX (programming language)
| Paradigm | procedural, imperative |
|---|---|
| Developer | Göran Hemdahl |
| First appeared | 1970s |
| OS | Ericsson APZ |
| License | Proprietary |
| Dialects | |
| Plex-C, Plex-M | |
PLEX (Programming Language for EXchanges) is a special-purpose, pseudo-parallel and event-driven real-time programming language. Dedicated for AXE telephone exchanges, it was developed by Göran Hemdahl at Ericsson.[1] Originally designed in the 1970s, it has been continuously evolving since then.[2] The language has two variants: Plex-C used for AXE Central Processors (CP) and Plex-M used for Extension Module Regional Processors (EMRP).[3]
Program in PLEX consists of several independent subprograms. Code execution is triggered by special events, encoded as signals.[3]
Notes
- ^ Joe Armstrong. "A History of Erlang" (PDF). Ericsson AB. Retrieved 2009-03-07.
- ^ Johan Erikson and Björn Lisper. "A Formal Semantics for PLEX" (PDF). Mälardalen University. Retrieved 2009-03-07.
- ^ a b Johan Erikson and Bo Lindell. "The Execution Model of APZ/PLEX - An Informal Description" (PDF). Mälardalen University. Retrieved 2009-03-07.
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