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A Java processor architecture for embedded real-time systems
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DOI：10.1016/j.sysarc.2007.06.001.png)
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Abstract
En 中文
Architectural advancements in modern processor designs increase average performance with features such as pipelines, caches, branch prediction, and out-of-order execution. However, these features complicate worst-case execution time analysis and lead to very conservative estimates. JOP (Java Optimized Processor) tackles this problem from the architectural perspective - by introducing a processor architecture in which simpler and more accurate WCET analysis is more important than average case performance. This paper presents a Java processor designed for time-predictable execution of real-time tasks. JOP is the implementation of the Java virtual machine in hardware. JOP is intended for applications in embedded real-time systems and the primary implementation technology is in a field programmable gate array. This paper demonstrates that a hardware implementation of the Java virtual machine results in a small design for resource-constrained devices. (C) 2007 Elsevier B.V. All rights reserved.
Keywords:
real-time system
time-predictable architecture
Java processor
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