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2. 发明授权

US3982231A Prefixing in a multiprocessing system 失效
标题翻译：在多处理系统中前缀
公开(公告)号：US3982231A
公开(公告)日：1976-09-21
申请号：US461336
申请日：1974-04-16
申请人： William A. Bernstein , Robert H. Doggett
发明人： William A. Bernstein , Robert H. Doggett
IPC分类号： G06F9/355 , G06F12/02 , G06F1/00
CPC分类号： G06F9/355 , G06F12/0284
摘要： A shared storage multiprocessing system in which storage is arranged into blocks of storage for storing blocks of data and in which prefixed storage areas for the processors are assigned to predetermined blocks of storage in accordance with different prefix numbers having predetermined values with at least one prefixed storage area being assigned to the zero block of storage. Each of the processors includes a control register which provides the prefix number, an addressing means which provides reference block addresses and prefix logic means which selectively responds to the value of the prefix number and the values of the reference block addresses to provide storage block addresses for addressing the blocks of data in storage. When a referencing processor is to access its assigned prefixed storage area, the processor provides a reference block address equal to zero which when combined by the prefix logic means with the prefix value provided by the control register provides a storage block address equal to the block address of the prefixed storage area assigned to the referencing processor. When the referencing processor is to access the prefix storage area assigned to the zero block of storage, the processor provides a reference block address equal to the prefix value for the referencing processor which when combined by the prefix logic means with the prefix value provided by the control register provides a storage block address having a zero value equal to the block address of the prefixed storage area assigned to the zero block of storage. When the referencing processor provides a reference block address having a value which is greater than zero and not equal to the prefix number, the reference block address is passed in unaltered form by the prefix logic means as the storage block address for addressing a block of storage other than the zero block of storage or the assigned prefixed storage area of the referencing processor.
摘要翻译：一种共享存储多处理系统，其中存储被布置成用于存储数据块的存储块，并且根据具有预定值的不同前缀号码将处理器的前缀存储区域分配给预定存储块，其中至少一个前缀存储区域被分配到零块存储。每个处理器包括提供前缀号码的控制寄存器，提供参考块地址的寻址装置和选择性地响应前缀号码的值的前缀逻辑装置和参考块地址的值以提供用于解决存储中的数据块。当参考处理器访问其分配的前缀存储区域时，处理器提供等于零的参考块地址，当前缀逻辑装置与由控制寄存器提供的前缀值组合时，提供等于块地址的存储块地址分配给参考处理器的前缀存储区域。当引用处理器要访问分配给零存储块的前缀存储区域时，处理器提供等于参考处理器的前缀值的参考块地址，当前缀逻辑装置与由前缀逻辑装置组合的前缀值由控制寄存器提供具有等于分配给零存储块的前缀存储区域的块地址的零值的存储块地址。当参考处理器提供具有大于零并且不等于前缀号码的参考块地址时，参考块地址由前缀逻辑装置作为用于寻址存储块的存储块地址以未改变的形式传递除了零块存储或引用处理器的分配的前缀存储区域之外。

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