PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
Corsini P., Lopriore L. A microprocessor-based advanced architecture. Internal note IEI-B83-16, 1983.
 
 
Abstract
(English)
We have approached the problem of improving the run-time supports for operating system, high-level languages and programming environments, within the framework of a project aimed at defining a microprocessor-based advanced architecture whose main goal is the reduction of the so-called semantic-gap. The principal features of the resulting architecture are a capability-based addressing scheme, an implementation of tagged memory relying on the concept of tagged segments, a single level store approach to memory management, and significant hardware supports for multitasking. The architecture has actually been implanted as a research prototype, and the most noticeable choice concerning implementation was to give separate hardware support to memory management functionalities: this not only led to a high degree of parallelism in the execution of kernel activities, but also improved the overall manageability and simplified the testing, debugging and tuning phases of system development.
Subject Design
Languages
Management


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