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Exploiting Purely Functional Programming to Obtain Bounded Resource Behaviour: The Hume Approach

  • Kevin Hammond
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4164)

Abstract

This chapter describes Hume: a functionally-based language for programming with bounded resource usage, including time and space properties. The purpose of the Hume language design is to explore the expressibility/costability spectrum in resource-constrained systems, such as real-time embedded or control systems. It is unusual in being based on a combination of λ-calculus and finite state machine notions, rather than the more usual propositional logic, or flat finite-state-machine models. The use of a strict, purely functional programming notation allows the construction of a strong cost model for expressions, which can then be embedded into a simple cost model for processes.

In this chapter, we introduce Hume, describe the Hume Abstract Machine implementation, and show how a high-level cost model can be constructed that relates costs from the abstract machine to Hume source programs. We illustrate our approach with an example adapted from the literature: a simple vending machine controller.

Keywords

Cost Model Cash Holder Abstract Machine Functional Language Functional Programming Language 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Kevin Hammond
    • 1
  1. 1.School of Computer ScienceUniversity of St AndrewsSt AndrewsScotland

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