公开(公告)号：US09959122B2

公开(公告)日：2018-05-01

申请号：US13869488

申请日：2013-04-24

Applicant: Advanced Micro Devices, Inc.

Inventor： Michael D. Estlick ,  Jay E. Fleischman ,  Kevin A. Hurd ,  Mark M. Gibson ,  Kelvin D. Goveas ,  Brian M. Lay

IPC: G06F15/00 ,  G06F9/46 ,  G06F9/38

CPC classification number: G06F9/3828 ,  G06F9/3836 ,  G06F9/3838 ,  G06F9/3873 ,  G06F9/3889

Abstract: A method includes allocating a first single-cycle instruction to a first pipeline that picks single-cycle instructions for execution in program order. The method further includes marking at least one source register of the first single-cycle instruction as ready for execution in the first pipeline in response to all older single-cycle instructions allocated to the first pipeline being ready and eligible to be picked for execution. An apparatus includes a decoder to decode a first single-cycle instruction and to allocate the first single-cycle instruction to a first pipeline. The apparatus further includes a scheduler to pick single-cycle instructions for execution by the first pipeline in program order and to mark at least one source register of the first single-cycle instruction as ready for execution in the first pipeline in response to determining that all older single-cycle instructions allocated to the first pipeline are ready and eligible.

公开(公告)号：US20140325187A1

公开(公告)日：2014-10-30

申请号：US13869488

申请日：2013-04-24

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Michael D. Estlick ,  Jay E. Fleischman ,  Kevin A. Hurd ,  Mark M. Gibson ,  Kelvin D. Goveas ,  Brian M. Lay

IPC: G06F9/30

CPC classification number: G06F9/3828 ,  G06F9/3836 ,  G06F9/3838 ,  G06F9/3873 ,  G06F9/3889

Abstract: A method includes allocating a first single-cycle instruction to a first pipeline that picks single-cycle instructions for execution in program order. The method further includes marking at least one source register of the first single-cycle instruction as ready for execution in the first pipeline in response to all older single-cycle instructions allocated to the first pipeline being ready and eligible to be picked for execution. An apparatus includes a decoder to decode a first single-cycle instruction and to allocate the first single-cycle instruction to a first pipeline. The apparatus further includes a scheduler to pick single-cycle instructions for execution by the first pipeline in program order and to mark at least one source register of the first single-cycle instruction as ready for execution in the first pipeline in response to determining that all older single-cycle instructions allocated to the first pipeline are ready and eligible.

Abstract translation: 一种方法包括：将第一单周期指令分配给选择用于以程序顺序执行的单周期指令的第一流水线。 该方法还包括将第一单周期指令的至少一个源寄存器标记为准备在第一流水线中执行，以响应分配给第一管线的所有较早的单循环指令准备好并且有资格被选择执行。 一种装置包括解码器，用于对第一单周期指令进行解码，并将第一单周期指令分配给第一流水线。 该装置还包括一个调度器，用于以程序顺序挑选由第一流水线执行的单周期指令，并且响应于确定所有第一单循环指令的所有第一单循环指令的至少一个源寄存器准备好在第一流水线中执行 分配给第一个管道的较旧的单循环指令已准备就绪并符合条件。

公开(公告)号：US20150121040A1

公开(公告)日：2015-04-30

申请号：US14523660

申请日：2014-10-24

Applicant: Advanced Micro Devices, Inc.

Inventor： Robert E. Weidner ,  Jay E. Fleischman ,  Michael C. Sedmak ,  Michael Estlick ,  Richard McGowen, II ,  Emil Talpes

IPC: G06F9/30

CPC classification number: G06F9/3013 ,  G06F9/30036 ,  G06F9/30112 ,  G06F9/3017 ,  G06F9/384

Abstract: Methods, devices, and systems for accessing packed registers are presented. A state of the packed registers may be tracked and it may be determined whether the register is directly accessible based on the state. If the register is not directly accessible, an action may be performed which allows the register to be accessed directly. The action may include injecting at least one uop for reorganizing the physical storage of the register such that it is directly accessible. The action may include aligning the data with the least significant bit of a physical register or otherwise aligning the data with the datapath. The action may also include changing the state of the packed registers.

Abstract translation: 介绍了访问打包寄存器的方法，设备和系统。 可以跟踪打包寄存器的状态，并且可以基于状态确定寄存器是否可直接访问。 如果寄存器不可直接访问，则可以执行允许直接访问寄存器的动作。 该动作可以包括至少注入一个uop来重新组织寄存器的物理存储器，使得它可以直接访问。 该动作可以包括将数据与物理寄存器的最低有效位对准，或者使数据与数据通路对准。 该动作还可以包括改变打包寄存器的状态。