Microprocessor for executing byte compiled java code

Details Microprocessor for executing byte compiled java code Microprocessor for executing byte compiled java code

G - Physics

06

F

G06F 9/00 (2006.01) G06F 9/30 (2006.01) G06F 9/318 (2006.01)

Patent

CA 2444968

A microprocessor architecture (30) for executing byte compiled Java programs directly in hardware. The microprocessor targets the lower end of the embedded systems domain and features two orthogonal programming models, a Java model and a RISC model. The entities share a common data path and operate independently, although not in parallel. The microprocessor includes a combined register file in which the Java module (31) sees the elements in the register file (35) as a circular operand stack and the RISC module (33) sees the elements as a conventional register file. The integrated microprocessor architecture facilitates access to hardware-near instructions and provides powerful interrupt and instruction trapping capabilities.

L'invention concerne une architecture de microprocesseur (30) conçue pour exécuter des programmes Java compilés en code octets directemement sur du matériel. Ce microprocesseur cible le domaine des systèmes incorporés de dimension petite à moyenne et se caractérise par deux modèles de programmation orthogonaux, un modèle Java et un modèle RISC. Les entités partagent un chemin de données commun et fonctionnent indépendamment mais pas en parallèle. Le microprocesseur comporte un fichier registre combiné (35) comportant des éléments que le module Java (31) apparente à une pile circulaire d'opérandes et que le module RISC (33) apparente à fichier registre traditionnel. L'architecture intégrée du microprocesseur facilite l'accès à des instructions proches du matériel et présente de puissantes capacités d'interruption et d'interception d'instructions.

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