公开(公告)号：US07496733B2

公开(公告)日：2009-02-24

申请号：US11924977

申请日：2007-10-26

申请人： Erik Altman ,  Michael Karl Gschwind ,  Jude A. Rivers ,  Sumedh Wasudeo Sathaye ,  John-David Wellman ,  Victor Zyuban

发明人： Erik Altman ,  Michael Karl Gschwind ,  Jude A. Rivers ,  Sumedh Wasudeo Sathaye ,  John-David Wellman ,  Victor Zyuban

IPC分类号： G06F9/30

CPC分类号： G06F9/3836 ,  G06F9/30036 ,  G06F9/3013 ,  G06F9/3838 ,  G06F9/384 ,  G06F9/3855 ,  G06F9/3857 ,  G06F9/3867 ,  G06F9/3885

摘要： A pipeline system and method includes a plurality of operational stages. The stages include a pointer register stage which stores pointer information and updates, and a rename and dependence checking stage located downstream of the pointer register stage, which renames registers and determines if dependencies exist. A functional unit provides pointer information updates to the pointer register stage such that pointer information is processed and updated to the pointer register stage before or in parallel with the register dependency checking.

摘要翻译： 管道系统和方法包括多个操作阶段。 这些阶段包括存储指针信息和更新的指针寄存器阶段，以及位于指针寄存器阶段下游的重命名和依赖性检查阶段，其重新命名寄存器并确定是否存在相关性。 功能单元向指针寄存器阶段提供指针信息更新，使得指针信息在寄存器依赖性检查之前或与寄存器依赖性检查并行地更新到指针寄存器阶段。

公开(公告)号：US07325124B2

公开(公告)日：2008-01-29

申请号：US10828794

申请日：2004-04-21

申请人： Erik Altman ,  Michael Karl Gschwind ,  Jude A. Rivers ,  Sumedh Wasudeo Sathaye ,  John-David Wellman ,  Victor Zyuban

发明人： Erik Altman ,  Michael Karl Gschwind ,  Jude A. Rivers ,  Sumedh Wasudeo Sathaye ,  John-David Wellman ,  Victor Zyuban

IPC分类号： G06F9/30

CPC分类号： G06F9/3836 ,  G06F9/30036 ,  G06F9/3013 ,  G06F9/3838 ,  G06F9/384 ,  G06F9/3855 ,  G06F9/3857 ,  G06F9/3867 ,  G06F9/3885

摘要： A pipeline system and method includes a plurality of operational stages. The stages include a pointer register stage which stores pointer information and updates, and a rename and dependence checking stage located downstream of the pointer register stage, which renames registers and determines if dependencies exist. A functional unit provides pointer information updates to the pointer register stage such that pointer information is processed and updated to the pointer register stage before or in parallel with the register dependency checking.

摘要翻译： 管道系统和方法包括多个操作阶段。 这些阶段包括存储指针信息和更新的指针寄存器阶段，以及位于指针寄存器阶段下游的重命名和依赖性检查阶段，其重新命名寄存器并确定是否存在相关性。 功能单元向指针寄存器阶段提供指针信息更新，使得指针信息在寄存器依赖性检查之前或与寄存器依赖性检查并行地更新到指针寄存器阶段。

公开(公告)号：US20060190700A1

公开(公告)日：2006-08-24

申请号：US11063122

申请日：2005-02-22

申请人： Erik Altman ,  Gheorghe Cascaval ,  Luis Ceze ,  Vijayalakshmi Srinivasan

发明人： Erik Altman ,  Gheorghe Cascaval ,  Luis Ceze ,  Vijayalakshmi Srinivasan

IPC分类号： G06F15/00

CPC分类号： G06F11/1641

摘要： A method for handling permanent and transient errors in a microprocessor is disclosed. The method includes reading a scalar value and a scalar operation from an execution unit of the microprocessor. The method further includes writing a copy of the scalar value into each of a plurality of elements of a vector register of a Single Instruction Multiple Data (SIMD) unit of the microprocessor and executing the scalar operation on each scalar value in each of the plurality of elements of the vector register of the SIMED unit using a vector operation. The method further includes comparing each result of the scalar operation on each scalar value in each of the plurality of elements of the vector register and detecting a permanent or transient error if all of the results are not identical.

摘要翻译： 公开了一种用于处理微处理器中的永久和瞬态误差的方法。 该方法包括从微处理器的执行单元读取标量值和标量运算。 该方法还包括将标量值的副本写入微处理器的单指令多数据（SIMD）单元的向量寄存器的多个元素中的每一个元素中，并对多个数据单元中的每一个的每个标量值执行标量运算 使用向量操作的SIMED单元的向量寄存器的元素。 所述方法还包括：对所述向量寄存器的所述多个元素中的每一个中的每个标量值进行标量运算的每个结果，如果所有结果不相同，则检测永久或瞬态错误。

公开(公告)号：US06381691B1

公开(公告)日：2002-04-30

申请号：US09374255

申请日：1999-08-13

申请人： Erik Altman ,  Michael K. Gschwind

发明人： Erik Altman ,  Michael K. Gschwind

IPC分类号： G06F9312

CPC分类号： G06F9/3804 ,  G06F9/3834 ,  G06F9/3842 ,  G06F9/3851 ,  G06F9/3863

摘要： A method is provided for scheduling instructions for execution along multiple paths in a Computer processing system implementing out-of-order execution. The method includes the step of selecting and moving a next instruction from its current position in a sequence of instructions to an earlier position. It is determined whether the selected instruction may reference a memory location for read-access. It is determined whether the selected instruction was previously moved over a non-selected instruction which may ambiguously reference the memory location, when the selected instruction may reference the memory location for read-access. It is determined whether the selected instruction was previously moved over a branch instruction, when the selected instruction was previously moved over the non-selected instruction. A record of the selected instruction is stored for future reference, when the selected instruction was previously moved over the branch instruction. The record includes a path specifier for indicating a path from a current locus of execution to a basic block corresponding to a in-order position of the selected instruction.

摘要翻译： 提供了一种用于在执行无序执行的计算机处理系统中调度用于沿着多个路径执行的指令的方法。 该方法包括以下步骤：从指令序列中的当前位置选择下一个指令并将其移动到较早的位置。 确定所选择的指令是否可以引用用于读取访问的存储器位置。 当所选择的指令可以引用用于读取访问的存储器位置时，确定所选择的指令是否先前移动了可能会模糊地引用存储器位置的未选择指令。 当所选择的指令先前在未选择的指令上移动时，确定所选择的指令是否先前通过分支指令移动。 所选指令的记录存储以供将来参考，当所选择的指令先前在分支指令上移动时。 记录包括用于指示从当前执行轨迹到与所选择的指令的顺序位置相对应的基本块的路径的路径说明符。