Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Java Processor Optimized for RTSJ | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2007 Article ID 57575 8 pages doi 2007 57575 Research Article Java Processor Optimized for RTSJ Zhilei Chai 1 Wenbo Xu 1 Shiliang Tu 2 and Zhanglong Chen2 1 School of Information Technology Southern Yangtze University Wuxi 214122 China 2 Department of Computer Science and Engineering Fudan University Shanghai 200433 China Received 18 January 2006 Revised 25 September 2006 Accepted 23 April 2007 Recommended by Zoran Salcic Due to the preeminent work ofthe real-time specification for Java RTSJ Java is increasingly expected to become the leading programming language in real-time systems. To provide a Java platform suitable for real-time applications a Java processor which can execute Java bytecode is directly proposed in this paper. It provides efficient support in hardware for some mechanisms specified in the RTSJ and offers a simpler programming model through ameliorating the scoped memory of the RTSJ. The worst case execution time WCET of the bytecodes implemented in this processor is predictable by employing the optimization method proposed in our previous work in which all the processing interfering predictability is handled before bytecode execution. Further advantage of this method is to make the implementation of the processor simpler and suited to a low-cost FPGA chip. Copyright 2007 Zhilei Chai et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION Real-time specification for Java RTSJ 1 is a real-time extension for the Java language specification 2 and the Java virtual machine specification 3 under the requirements for real-time extensions for the Java platform 4 . It provides an application programming interface that enables the creation execution and management of Java threads with predictable .
