Publication details

Saarland University Computer Science

The Oz Virtual Machine - Records, Transients, and Deep Guards

Michael Mehl

PhD Thesis, Technische Fakultät der Universität des Saarlandes, 1999

In this thesis we describe the design and implementation of a virtual machine LVM for the execution of Oz programs. Oz is a concurrent, dynamically typed, functional language with logic variables, futures, by-need synchronization, records, feature constraints, and deep guard conditionals. The LVM supports light-weight threads, first-class procedures, exception handling, transients as generalization of logic variables, futures, and constraint variables, records and open records, and multiple computation spaces to implement the deep guard conditional. We discuss the modular, open, and extensible design of the LVM. Techniques for the efficient implementation of the store on standard hardware are shown. The LVM subsumes well-known virtual machines for functional, logic, and imperative languages.

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