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    • 2. 发明授权
    • Two tier arrangement for threads support in a virtual machine
    • 在虚拟机中支持线程的两层安排
    • US07043725B1
    • 2006-05-09
    • US09350492
    • 1999-07-09
    • Venkatesh KrishnanGeetha ManjunathDevaraj DasKommarahalli S. Venugopal
    • Venkatesh KrishnanGeetha ManjunathDevaraj DasKommarahalli S. Venugopal
    • G06F9/455G06F9/46
    • G06F9/455G06F9/485
    • A software system with a two tier arrangement for threads support that enhances the adaptability of a virtual machine to differing platforms. The software system includes a virtual machine with a threads interface layer having a set of methods that provide thread support in the virtual machine according to a standard threads interface associated with the virtual machine. The software system includes a native threads interface layer that provides a set of methods that adapt the methods of the threads interface layer to a platform which underlies the software system. The native threads interface layer shields the virtual machine from the particulars of the underlying operating system while the threads interface layer provides a stable interface for application programs and other tasks that benefit from thread support in the virtual machine.
    • 具有用于线程支持的两层布置的软件系统,可增强虚拟机对不同平台的适应性。 所述软件系统包括具有线程接口层的虚拟机,所述线程接口层具有根据与所述虚拟机相关联的标准线程接口在所述虚拟机中提供线程支持的一组方法。 该软件系统包括本地线程接口层,其提供将线程接口层的方法适配到基于软件系统的平台的一组方法。 本地线程接口层可以将虚拟机与底层操作系统的细节进行屏蔽,而线程接口层为应用程序和其他从虚拟机中的线程支持中受益的任务提供了稳定的接口。
    • 4. 发明申请
    • Application specific optimization of interpreters for embedded systems
    • 针对嵌入式系统的解释器的特定应用优化
    • US20050028132A1
    • 2005-02-03
    • US10630913
    • 2003-07-31
    • Venugopal SrinivasamurthyGeetha ManjunathVenkatesh Krishnan
    • Venugopal SrinivasamurthyGeetha ManjunathVenkatesh Krishnan
    • G06F9/44G06F9/455
    • G06F9/45516G06F9/45504
    • The invention provides a method and apparatus for optimising the performance of interpreter-based runtime systems. The runtime system may include a virtual machine where the virtual machine is adapted to interpret an application in the context of the particular runtime environment. The method comprises augmenting the bytecode set of the virtual machine with application-specific opcodes by reference to the application, thereby constituting an application domain-specific virtual machine. The invention also provides a method and apparatus for embedding semantically enriched code opcodes into an application which is to be run on the embedded runtime environment. The embedding can be done statically or dynamically. The invention may find be used in the Java runtime environment and particular applications of such embedded processors include function-specific devices such as cell-phones, PDAs and the like.
    • 本发明提供一种用于优化基于解释器的运行时系统的性能的方法和装置。 运行时系统可以包括虚拟机,其中虚拟机适于在特定运行时环境的上下文中解释应用。 该方法包括通过参考应用程序来增加具有应用专用操作码的虚拟机的字节码集,从而构成应用领域特定的虚拟机。 本发明还提供了一种用于将语义丰富的代码操作码嵌入到将在嵌入式运行时环境上运行的应用中的方法和装置。 嵌入可以静态或动态地进行。 本发明可以在Java运行时环境中使用,并且这种嵌入式处理器的特定应用包括功能特定的设备,如手机,PDA等。