PyGirl: Generating Whole-System VMs from High-Level Prototypes Using PyPy

Bruni, Camillo; Verwaest, Toon (2009). PyGirl: Generating Whole-System VMs from High-Level Prototypes Using PyPy. In: Oriol, Manuel; Meyer, Bertrand (eds.) Objects, Components, Models and Patterns, Proceedings of TOOLS Europe 2009. Lecture Notes in Business Information: Vol. 33 (pp. 328-347). Heidelberg: Springer Verlag 10.1007/978-3-642-02571-6_19

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Virtual machines (VMs) emulating hardware devices are generally implemented in low-level languages for performance reasons. This results in unmaintainable systems that are difficult to understand. In this paper we report on our experience using the PyPy toolchain to improve the portability and reduce the complexity of whole-system VM implementations. As a case study we implement a VM prototype for a Nintendo Game Boy, called PyGirl, in which the high-level model is separated from low-level VM implementation issues. We shed light on the process of refactoring from a low-level VM implementation in Java to a high-level model in RPython. We show that our whole-system VM written with PyPy is significantly less complex than standard implementations, without substantial loss in performance.

Item Type: Book Section (Book Chapter)
Division/Institute: 08 Faculty of Science > Institute of Computer Science (INF)
UniBE Contributor: Verwaest, Toon Wim Jan
Series: Lecture Notes in Business Information
Publisher: Springer Verlag
Language: English
Submitter: Factscience Import
Date Deposited: 04 Oct 2013 15:22
Last Modified: 04 May 2014 23:27
Publisher DOI: 10.1007/978-3-642-02571-6_19
URI: http://boris.unibe.ch/id/eprint/37177 (FactScience: 207150)

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