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    • 1. 发明授权
    • Method and apparatus for executing applications in place from write
once/seldom memories
    • 用于从一次写入/少量存储器中执行应用的方法和装置
    • US5581768A
    • 1996-12-03
    • US394619
    • 1995-02-27
    • John GarneyClifton W. Laney
    • John GarneyClifton W. Laney
    • G06F9/445G06F15/40
    • G06F9/44521G06F9/44573
    • A number of new utility and runtime functions are provided to an otherwise conventional operating system of a computer system that supports virtual memory and multitasking, including new linker, installer, memory management, loader and task management functions. The new linker function is used to partially resolve unresolved references of a conventional "RAM based" application, such that in conjunction with the new runtime functions, the partially resolved application can be executed in place from a "write once/seldom" storage medium. The new installer function is used to install the partially resolved application onto a "write seldom" storage medium. The new memory management function is used to reserve a predetermined portion of the operating system's memory management data structure for "mapping" the physical address span(s) of an installed application into a logical address space, thereby enabling the "mapped" application to be executed in place. The new loader function is used to pseudo-load and start execution of an XIP application. The new task management function is used to facilitate sharing of the predetermined portion of the operating system's memory management data structure by multiple XIP applications, thereby allowing multi-tasking of XIP applications as well as non-XIP or conventional "RAM based" applications by the operating system.
    • 向支持虚拟内存和多任务处理的计算机系统的其他常规操作系统提供了许多新的实用程序和运行时功能,包括新的链接器,安装程序,内存管理,加载程序和任务管理功能。 新的链接器功能用于部分地解决传统的“基于RAM”的应用程序的未解析引用,使得结合新的运行时功能,可以从“一次写入/少量”存储介质中执行部分解决的应用程序。 新的安装程序功能用于将部分解决的应用程序安装到“写入很少”的存储介质上。 新的存储器管理功能用于保留操作系统的存储器管理数据结构的预定部分,用于将所安装的应用的物理地址跨度“映射”为逻辑地址空间,由此使“映射”应用程序成为 执行到位 新的加载器功能用于伪加载并开始执行XIP应用程序。 新的任务管理功能用于通过多个XIP应用来促进操作系统的存储器管理数据结构的预定部分共享,从而允许XIP应用以及非XIP或常规的“基于RAM”的应用程序的多任务 操作系统。