利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

5 条记录 (耗时 0.026 秒)

    System for operand bypassing to allow a one and one-half cycle cache memory access time for sequential load and branch instructions
    1.
    发明授权
    System for operand bypassing to allow a one and one-half cycle cache memory access time for sequential load and branch instructions 失效
    用于操作数旁路的系统允许一个半周期的缓存存储器访问时间用于顺序加载和分支指令

    公开(公告)号：US5526500A

    公开(公告)日：1996-06-11

    申请号：US387960

    申请日：1995-02-10

    申请人： Darius F. Tanksalvala ,  Eric R. DeLano ,  Patrick Knebel ,  Thomas R. Hotchkiss ,  R. Craig Simpson

    发明人： Darius F. Tanksalvala ,  Eric R. DeLano ,  Patrick Knebel ,  Thomas R. Hotchkiss ,  R. Craig Simpson

    IPC分类号： G06F9/38 ,  G06F12/08 ,  G06F9/32 ,  G06F9/312

    CPC分类号： G06F12/0888 ,  G06F12/0855 ,  G06F9/3824 ,  G06F9/3842

    摘要： Pipeline structure that is arranged to allow 1.5 cycle access time for both data and instruction cache without imposing additional instruction step delays than that imposed by data and instruction cache that have 1 cycle access time. Half cycle pulses are produced to allow execution of various instructions in 0.5 cycles. A bypass signal is generated to allow data from a current load instruction to be available for a second subsequent instruction even though the access time for data cache is 1.5 cycles. Additionally, a branch address is available for a third subsequent instruction even though instruction cache access time is 1.5 cycles. The present invention shows the initiation of an instruction step for each cycle and 1.5 cycle access time for cache memory. The present invention can also be implemented by implementing an instruction every 2 cycles and providing 3 cycle access time for cache memory.

    摘要翻译： 管道结构被布置为允许数据和指令高速缓存的1.5个周期访问时间，而不施加比具有1个周期访问时间的数据和指令高速缓存所施加的额外的指令阶延迟。 产生半周期脉冲以允许在0.5个周期内执行各种指令。 生成旁路信号以允许来自当前加载指令的数据可用于第二后续指令，即使数据高速缓存的访问时间为1.5个周期。 另外，即使指令高速缓存访​​问时间为1.5个周期，分支地址也可用于第三个后续指令。 本发明示出了针对高速缓冲存储器的每个周期和1.5周期访问时间的指令步骤的启动。 本发明还可以通过每2个周期实现一个指令并为高速缓冲存储器提供3个周期的访问时间来实现。

    Multiprocessor system for maintaining cache coherency by checking the coherency in the order of the transactions being issued on the bus
    3.
    发明授权
    Multiprocessor system for maintaining cache coherency by checking the coherency in the order of the transactions being issued on the bus 失效
    通过按照在总线上发出的事务的顺序检查一致性来维持高速缓存一致性的多处理器系统

    公开(公告)号：US5530933A

    公开(公告)日：1996-06-25

    申请号：US201463

    申请日：1994-02-24

    申请人： Craig R. Frink ,  William R. Bryg ,  Kenneth K. Chan ,  Thomas R. Hotchkiss ,  Robert D. Odineal ,  James B. Williams ,  Michael L. Ziegler

    发明人： Craig R. Frink ,  William R. Bryg ,  Kenneth K. Chan ,  Thomas R. Hotchkiss ,  Robert D. Odineal ,  James B. Williams ,  Michael L. Ziegler

    IPC分类号： G06F12/00 ,  G06F12/08 ,  G06F12/06

    CPC分类号： G06F12/0831

    摘要： A coherency scheme of use with a system having a bus, a main memory, a main memory controller for accessing main memory in response to transactions received on the bus, and a set of processor modules coupled to the bus. Each processor module has a cache memory and is capable of transmitting coherent transactions on the bus to other processor modules and to the main memory controller. Each processor module detects coherent transactions issued on the bus and performs cache coherency checks for each of the coherent transactions. Each processor module has a coherency queue for storing all transactions issued on the bus and for performing coherency checks for the transactions in first-in, first-out order. When a module transmits a coherent transaction on a bus, it places its own transaction into its own coherency queue.

    摘要翻译： 与具有总线的系统一起使用的一致性方案，主存储器，用于响应于在总线上接收到的事务来访问主存储器的主存储器控制器，以及耦合到总线的一组处理器模块。 每个处理器模块具有高速缓冲存储器，并且能够将总线上的相干事务发送到其他处理器模块和主存储器控制器。 每个处理器模块检测总线上发出的相干事务，并执行每个相干事务的高速缓存一致性检查。 每个处理器模块具有用于存储在总线上发布的所有事务的一致性队列，并且用于以先入先出顺序执行事务的一致性检查。 当模块在总线上传输一致的事务时，它将自己的事务置于自己的一致性队列中。

    Fast pipelined distributed arbitration scheme
    5.
    发明授权
    Fast pipelined distributed arbitration scheme 失效
    快速流水线分布仲裁方案

    公开(公告)号：US5519838A

    公开(公告)日：1996-05-21

    申请号：US201186

    申请日：1994-02-24

    申请人： Michael L. Ziegler ,  Robert J. Brooks ,  William R. Bryg ,  Kenneth K. Chan ,  Thomas R. Hotchkiss ,  Robert E. Naas ,  Robert D. Odineal ,  Brendan A. Voge ,  James B. Williams ,  John L. Wood

    发明人： Michael L. Ziegler ,  Robert J. Brooks ,  William R. Bryg ,  Kenneth K. Chan ,  Thomas R. Hotchkiss ,  Robert E. Naas ,  Robert D. Odineal ,  Brendan A. Voge ,  James B. Williams ,  John L. Wood

    IPC分类号： G06F13/368 ,  G06F13/00

    CPC分类号： G06F13/368

    摘要： A bus system having a bus arbitration scheme. The bus system includes a bus and a plurality of client modules coupled to the bus. Each of the client modules is capable of transmitting information on the bus to another of client module, and only one client module is entitled to transmit information on the bus at any time. A module entitled to transmit information on the bus has control of the bus for a minimum period of time defining a cycle. To determine which module is entitled to use the bus, each client module generates an arbitration signal when it seeks to transmit information on the bus. Each client module has an arbitration signal processor responsive to the arbitration signals for determining whether the module is entitled to transmit information on said bus. The system preferably also contains a host module that informs the client modules what types of transactions allowed on the bus in a given cycle. Each arbitration signal processor preferably is also responsive to the client option signals sent by the host module during an earlier cycle.

    摘要翻译： 具有总线仲裁方案的总线系统。 总线系统包括总线和耦合到总线的多个客户端模块。 每个客户端模块能够将总线上的信息发送到客户端模块的另一个，只有一个客户端模块有权在任何时候在总线上传输信息。 有权在总线上传输信息的模块可以控制总线最短时间来定义一个周期。 为了确定哪个模块有权使用总线，当客户端模块试图在总线上传输信息时，每个客户端模块都会产生仲裁信号。 每个客户端模块具有响应于仲裁信号的仲裁信号处理器，用于确定模块是否有权在所述总线上发送信息。 系统还优选地还包括主机模块，其向客户端模块通知在给定周期中在总线上允许的交易类型。 每个仲裁信号处理器优选地还响应于在较早的周期期间由主机模块发送的客户端选项信号。