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21. 发明授权

US4768149A System for managing a plurality of shared interrupt handlers in a linked-list data structure 失效
标题翻译：用于在链表列表数据结构中管理多个共享中断处理程序的系统
公开(公告)号：US4768149A
公开(公告)日：1988-08-30
申请号：US770541
申请日：1985-08-29
申请人： Bradly J. Konopik , David J. Bradley , Martin A. Reed , Alan R. Tannenbaum , Michael R. Turner
发明人： Bradly J. Konopik , David J. Bradley , Martin A. Reed , Alan R. Tannenbaum , Michael R. Turner
IPC分类号： G06F9/46 , G06F9/48 , G06F13/24
CPC分类号： G06F9/4812 , G06F13/24
摘要： A system is disclosed for managing a plurality of interrupt handlers in a linked-list data structure, for servicing a plurality of input/output devices sharing a common interrupt line in a microcomputer. The system provides for an orderly method to link a newly loaded interrupt handler routine into a linked-list data structure consisting of previously loaded interrupt handler routines. The system further provides for an orderly method to share a common interrupt line among a plurality of input/output devices being serviced by the interrupt handlers. The system further provides for an orderly means to unlink a particular interrupt handler routine from the linked-list data structure when a corresponding input/output device is to be deactivated. The system finds special utility in a multitasking operating system environment where input/output devices can be deactivated in a different sequence from that in which they were originally activated.
摘要翻译：公开了一种用于管理链接列表数据结构中的多个中断处理程序的系统，用于维护在微计算机中共享公共中断线的多个输入/输出设备。该系统提供了一种有序的方法来将新加载的中断处理程序例程链接到由先前加载的中断处理程序例程组成的链表数据结构中。该系统进一步提供一种有序的方法来在由中断处理程序服务的多个输入/输出设备之间共享公共中断线。当相应的输入/输出设备被去激活时，该系统进一步提供一种有序的方法来将特定的中断处理程序例程与链表列表数据结构断开连接。该系统在多任务操作系统环境中找到特殊的实用程序，其中输入/输出设备可以与其最初激活的序列不同的顺序禁用。

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