Predictors with Adaptive Prediction Threshold
    1.
    发明申请
    Predictors with Adaptive Prediction Threshold 失效
    具有自适应预测阈值的预测器

    公开(公告)号:US20100306515A1

    公开(公告)日:2010-12-02

    申请号:US12473764

    申请日:2009-05-28

    IPC分类号: G06F9/38

    CPC分类号: G06F9/3848

    摘要: An adaptive prediction threshold scheme for dynamically adjusting prediction thresholds of entries in a Pattern History Table (PHT) by observing global tendencies of the branch or branches that index into the PHT entries. A count value of a prediction state counter representing a prediction state of a prediction state machine for a PHT entry is obtained. Count values in a set of counters allocated to the entry in the PHT are changed based on the count value of the entry's prediction state counter. The prediction threshold of the prediction state machine for the entry may then be adjusted based on the changed count values in the set of counters, wherein the prediction threshold is adjusted by changing a count value in a prediction threshold counter in the entry, and wherein adjusting the prediction threshold redefines predictions provided by the prediction state machine.

    摘要翻译: 一种自适应预测阈值方案,用于通过观察索引到PHT条目中的分支或分支的全局倾向来动态地调整模式历史表(PHT)中条目的预测阈值。 获得表示PHT条目的预测状态机的预测状态的预测状态计数器的计数值。 分配给PHT中的条目的一组计数器中的计数值根据条目的预测状态计数器的计数值而改变。 然后可以基于该组计数器中的改变的计数值来调整用于该条目的预测状态机的预测阈值,其中通过改变条目中的预测阈值计数器中的计数值来调整预测阈值,并且其中调整 预测阈值重新定义了由预测状态机提供的预测。

    Memory Disambiguation Hardware To Support Software Binary Translation
    3.
    发明申请
    Memory Disambiguation Hardware To Support Software Binary Translation 有权
    内存消歧硬件支持软件二进制翻译

    公开(公告)号:US20130262838A1

    公开(公告)日:2013-10-03

    申请号:US13435165

    申请日:2012-03-30

    IPC分类号: G06F9/30

    摘要: A method of memory disambiguation hardware to support software binary translation is provided. This method includes unrolling a set of instructions to be executed within a processor, the set of instructions having a number of memory operations. An original relative order of memory operations is determined. Then, possible reordering problems are detected and identified in software. The reordering problem being when a first memory operation has been reordered prior to and aliases to a second memory operation with respect to the original order of memory operations. The reordering problem is addressed and a relative order of memory operations to the processor is communicated.

    摘要翻译: 提供了一种支持软件二进制翻译的内存消歧硬件的方法。 该方法包括展开要在处理器内执行的一组指令,该组指令具有多个存储器操作。 确定存储器操作的原始相对顺序。 然后,在软件中检测和识别可能的重排序问题。 重新排序问题是在第一存储器操作已经在存储器操作的原始顺序之前被重新排序并且相对于第二存储器操作而被重新排序的时候。 解决了重新排序问题,并且传达到处理器的存储器操作的相对顺序。

    Memory disambiguation hardware to support software binary translation
    6.
    发明授权
    Memory disambiguation hardware to support software binary translation 有权
    内存消歧硬件支持软件二进制翻译

    公开(公告)号:US08826257B2

    公开(公告)日:2014-09-02

    申请号:US13435165

    申请日:2012-03-30

    IPC分类号: G06F9/45

    摘要: A method of memory disambiguation hardware to support software binary translation is provided. This method includes unrolling a set of instructions to be executed within a processor, the set of instructions having a number of memory operations. An original relative order of memory operations is determined. Then, possible reordering problems are detected and identified in software. The reordering problem being when a first memory operation has been reordered prior to and aliases to a second memory operation with respect to the original order of memory operations. The reordering problem is addressed and a relative order of memory operations to the processor is communicated.

    摘要翻译: 提供了一种支持软件二进制翻译的内存消歧硬件的方法。 该方法包括展开要在处理器内执行的一组指令,该组指令具有多个存储器操作。 确定存储器操作的原始相对顺序。 然后,在软件中检测和识别可能的重排序问题。 重新排序问题是在第一存储器操作已经在存储器操作的原始顺序之前被重新排序并且相对于第二存储器操作而被重新排序的时候。 解决了重新排序问题,并且传达到处理器的存储器操作的相对顺序。

    ACCELERATED INTERLANE VECTOR REDUCTION INSTRUCTIONS
    10.
    发明申请
    ACCELERATED INTERLANE VECTOR REDUCTION INSTRUCTIONS 有权
    加速地面矢量减速指示

    公开(公告)号:US20140095842A1

    公开(公告)日:2014-04-03

    申请号:US13630154

    申请日:2012-09-28

    IPC分类号: G06F9/302

    摘要: A vector reduction instruction is executed by a processor to provide efficient reduction operations on an array of data elements. The processor includes vector registers. Each vector register is divided into a plurality of lanes, and each lane stores the same number of data elements. The processor also includes execution circuitry that receives the vector reduction instruction to reduce the array of data elements stored in a source operand into a result in a destination operand using a reduction operator. Each of the source operand and the destination operand is one of the vector registers. Responsive to the vector reduction instruction, the execution circuitry applies the reduction operator to two of the data elements in each lane, and shifts one or more remaining data elements when there is at least one of the data elements remaining in each lane.

    摘要翻译: 由处理器执行向量减少指令以对数据元素阵列提供有效的减少操作。 处理器包括向量寄存器。 每个向量寄存器被分成多个通道,每个通道存储相同数量的数据元素。 处理器还包括执行电路,其接收向量减少指令,以使用缩减运算符将存储在源操作数中的数据元素的阵列减少到目标操作数的结果。 源操作数和目标操作数中的每一个都是向量寄存器之一。 响应于向量减少指令,执行电路将减法运算符应用于每个通道中的两个数据元素,并且当存在每个通道中的至少一个数据元素时,移位一个或多个剩余数据元素。