公开(公告)号：US06278308B1

公开(公告)日：2001-08-21

申请号：US09415760

申请日：1999-10-08

申请人： Hamid Partovi ,  Michael Golden ,  John Yong

发明人： Hamid Partovi ,  Michael Golden ,  John Yong

IPC分类号： H03K312

CPC分类号： H03K3/356139 ,  H03K3/012

摘要： A flip-flop circuit includes a differential stage coupled to a transparent latch. Respective sides of the differential stage, referred to as the “output side” and the “reference side,” are precharged high during a precharge phase. During an evaluation phase, the state of a data input signal is sensed. Depending upon the state of the data input signal, either the output side or the reference side is discharged. Also, during the evaluation phase, the transparent latch is enabled, and thereby samples and stores an output signal from the output side of the differential stage. Upon initiation of the next precharge phase, the transparent latch is quickly disabled (i.e., is placed in an opaque state), and retains its present state. Since only a single side of the differential stage is used to drive the transparent latch, the differential stage may advantageously be implemented in an asymmetric fashion. In yet an additional embodiment, complex logic may be added to the differential stage of the flip-flop circuit.

摘要翻译： 触发器电路包括耦合到透明锁存器的差分级。 被称为“输出侧”和“参考侧”的差分级的各个侧在预充电阶段被预充电为高电平。 在评估阶段，检测数据输入信号的状态。 根据数据输入信号的状态，输出侧或参考侧都被放电。 此外，在评估阶段期间，透明锁存器被使能，从而采样并存储来自差分级的输出侧的输出信号。 在下一个预充电阶段开始时，透明锁存器被快速禁用（即，处于不透明状态）并保持其当前状态。 由于仅使用差分级的单侧来驱动透明锁存器，差动级可有利地以非对称方式实现。 在又一个实施例中，复合逻辑可以被添加到触发器电路的差分级。

公开(公告)号：US20070050602A1

公开(公告)日：2007-03-01

申请号：US11214193

申请日：2005-08-29

申请人： Wei-Han Lien ,  John Yong ,  Shyam Sundar ,  Rajat Goel

发明人： Wei-Han Lien ,  John Yong ,  Shyam Sundar ,  Rajat Goel

IPC分类号： G06F9/30

CPC分类号： G06F9/3836 ,  G06F9/384 ,  G06F9/3857 ,  G06F9/3861

摘要： In one embodiment, a renamer comprises a plurality of storage locations and compare circuitry. Each storage location is assigned to a respective renameable resource and is configured to store an identifier corresponding to a youngest instruction operation that writes the respective renameable resource. Coupled to receive an input representing one or more retiring instruction identifiers corresponding to instruction operations that are being retired, the compare circuitry is configured to detect a match between at least a first identifier in a first storage location and one of the retiring identifiers. An encoded form of the identifiers is logically divided into a plurality of fields, and the input comprises a first plurality of bit vectors. Each of the first plurality of bit vectors corresponds to a respective field and includes a bit position for each possible value of the respective field.

摘要翻译： 在一个实施例中，重新映射器包括多个存储位置和比较电路。 每个存储位置被分配给相应的可重命名资源，并且被配置为存储对应于写入相应可重命名资源的最小指令操作的标识符。 耦合以接收表示与正在退休的指令操作相对应的一个或多个退休指令标识符的输入，所述比较电路被配置为检测第一存储位置中的至少第一标识符与退出标识符之一的匹配。 标识符的编码形式在逻辑上被划分为多个字段，并且输入包括第一多个比特向量。 第一多个位向量中的每一个对应于相应的场，并且包括相应场的每个可能值的比特位置。