公开(公告)号：US09064050B2

公开(公告)日：2015-06-23

申请号：US13253381

申请日：2011-10-05

申请人： Cristian Duroiu ,  Jaya Prakash Subramaniam Ganasan ,  Vinod Chamarty ,  Mark Michael Schaffer ,  Joshua H. Stubbs ,  Robert N. Gibson ,  Kris Tiri ,  Moinul H. Khan ,  Bohuslav Rychlik ,  Serag GadelRab ,  Simon Booth

发明人： Cristian Duroiu ,  Jaya Prakash Subramaniam Ganasan ,  Vinod Chamarty ,  Mark Michael Schaffer ,  Joshua H. Stubbs ,  Robert N. Gibson ,  Kris Tiri ,  Moinul H. Khan ,  Bohuslav Rychlik ,  Serag GadelRab ,  Simon Booth

IPC分类号： G06F12/00 ,  G06F13/362

CPC分类号： G06F13/362 ,  Y02D10/14

摘要： Devices, systems, methods, and computer-readable mediums for arbitrating bus transactions on a communications bus based on health information are disclosed. Health information of master devices can be used to adjust priorities of bus transactions from master devices to meet quality of service requirements of the master devices. In one embodiment, a bus interconnect is provided and configured to communicate bus transactions from any of a plurality of master devices to slave device(s) coupled the bus interconnect. The bus interconnect is further configured to map health information for each of the plurality of master devices into virtual priority space. The bus interconnect is further configured to translate the virtual priority space into a physical priority level for each of the plurality of master devices. The bus interconnect is further configured to arbitrate bus transactions for the plurality of master devices based on physical priority level for the plurality of master devices.

摘要翻译： 公开了用于基于健康信息在通信总线上仲裁总线事务的设备，系统，方法和计算机可读介质。 主设备的健康信息可用于调整主设备总线事务的优先级，以满足主设备的服务质量要求。 在一个实施例中，总线互连被提供和配置为将总线事务从多个主设备中的任一个传送到耦合总线互连的从设备。 总线互连还被配置为将多个主设备中的每一个的健康信息映射到虚拟优先级空间中。 总线互连还被配置为将虚拟优先级空间转换为多个主设备中的每一个的物理优先级。 总线互连还被配置为基于多个主设备的物理优先级来仲裁多个主设备的总线事务。

公开(公告)号：US20120102249A1

公开(公告)日：2012-04-26

申请号：US13253381

申请日：2011-10-05

申请人： Cristian Duroiu ,  Jaya Prakash Subramaniam Ganasan ,  Vinod Chamarty ,  Mark Michael Schaffer ,  Joshua H. Stubbs ,  Robert N. Gibson ,  Kris Tiri ,  Moinul H. Khan ,  Bohuslav Rychlik ,  Serag GadelRab ,  Simon Booth

发明人： Cristian Duroiu ,  Jaya Prakash Subramaniam Ganasan ,  Vinod Chamarty ,  Mark Michael Schaffer ,  Joshua H. Stubbs ,  Robert N. Gibson ,  Kris Tiri ,  Moinul H. Khan ,  Bohuslav Rychlik ,  Serag GadelRab ,  Simon Booth

IPC分类号： G06F13/368

CPC分类号： G06F13/362 ,  Y02D10/14

摘要： Devices, systems, methods, and computer-readable mediums for arbitrating bus transactions on a communications bus based on health information are disclosed. Health information of master devices can be used to adjust priorities of bus transactions from master devices to meet quality of service requirements of the master devices. In one embodiment, a bus interconnect is provided and configured to communicate bus transactions from any of a plurality of master devices to slave device(s) coupled the bus interconnect. The bus interconnect is further configured to map health information for each of the plurality of master devices into virtual priority space. The bus interconnect is further configured to translate the virtual priority space into a physical priority level for each of the plurality of master devices. The bus interconnect is further configured to arbitrate bus transactions for the plurality of master devices based on physical priority level for the plurality of master devices.

摘要翻译： 公开了用于基于健康信息在通信总线上仲裁总线事务的设备，系统，方法和计算机可读介质。 主设备的健康信息可用于调整主设备总线事务的优先级，以满足主设备的服务质量要求。 在一个实施例中，总线互连被提供和配置为将总线事务从多个主设备中的任一个传送到耦合总线互连的从设备。 总线互连还被配置为将多个主设备中的每一个的健康信息映射到虚拟优先级空间中。 总线互连还被配置为将虚拟优先级空间转换为多个主设备中的每一个的物理优先级。 总线互连还被配置为基于多个主设备的物理优先级来仲裁多个主设备的总线事务。

公开(公告)号：US08543632B2

公开(公告)日：2013-09-24

申请号：US10458946

申请日：2003-06-11

申请人： Alexander Driker ,  Cristian Duroiu

发明人： Alexander Driker ,  Cristian Duroiu

IPC分类号： G06F7/38

CPC分类号： G06F7/49952 ,  G06F7/483

摘要： A method for computing the alignment sticky bit in floating-point operations is provided. The method includes computing a pre-computed sticky bit. A significand is aligned based on an alignment counter. A shifter sticky OR is computed. The alignment sticky bit is computed based on the pre-computed sticky bit by ORing the pre-computed sticky bit and the shifter sticky OR when the alignment counter comprises a value greater than or equal to a predefined value.

摘要翻译： 提供了一种用于计算浮点运算中的对齐粘性位的方法。 该方法包括计算预先计算的粘性位。 基于对齐计数器对齐一个有效数。 计算移位器粘性OR。 当对准计数器包括大于或等于预定值的值时，通过对预先计算的粘性位和移位器粘性OR进行OR运算，基于预计算的粘滞位来计算对准粘性位。

公开(公告)号：US07720898B2

公开(公告)日：2010-05-18

申请号：US10460019

申请日：2003-06-11

申请人： Alexander Driker ,  Cristian Duroiu

发明人： Alexander Driker ,  Cristian Duroiu

IPC分类号： G06F7/38

CPC分类号： G06F7/49936

摘要： A floating point unit, a central processing unit, and a method are provided for adjusting the exponent of a floating point number. During an addition or subtraction of two floating point numbers, the significand of the floating point result is rounded, and the exponent of the result may be adjusted due to normalization or renormalization. The exponent adjustment due to renormalization or the exponent adjustment due to normalization and renormalization is combined with the significand rounding operation.

摘要翻译： 提供浮点单元，中央处理单元和方法来调整浮点数的指数。 在两个浮点数的加法或减法期间，浮点结果的有效数被舍入，结果的指数可能由于归一化或重正化而被调整。 由归一化和重归一化引起的归一化或指数调整引起的指数调整与有效四舍五入操作相结合。