Separate Compilation of Polychronous Specifications

As code generation for synchronous programs requires strong safety properties to be satisfied, compositionality becomes a difficult goal to achieve. Most synchronous languages, such as Esterel, Lustre or Signal require a given module or compilation unit to be insensitive to latency that communication with its environment may incur. In Lustre or Signal, for instance, a compilation unit must satisfy the so-called property of endochrony. To preserve endochrony in an asynchronous environment, an ad-hoc protocol is synthesized to interface the module. However, endochrony is not preserved by composition. Consequently, the protocol has to be rebuilt every time a new module is added in the environment. We propose a methodology and code generation scheme which simplifies this concern. It consists of weakening the global objective of globally preserving endochrony. Instead, we aim at the preservation of a more liberal and compositional objective, weak endochrony [14], which is compositional and...

• Type: Journal
• Year: 2008
• Where: ENTCS
• Authors: Julien Ouy, Jean-Pierre Talpin, Loïc Besnard, Paul Le Guernic
• Keywords: Code Generation Scheme, Compilation Unit, ENTCS 2008, Most Synchronous Languages