Executing partial-width packed data instructions
    8.
    发明授权
    Executing partial-width packed data instructions 有权
    执行部分宽度打包的数据指令

    公开(公告)号:US06970994B2

    公开(公告)日:2005-11-29

    申请号:US09852217

    申请日:2001-05-08

    IPC分类号: G06F9/30 G06F9/302 G06F9/318

    摘要: A method and apparatus for executing partial-width packed data instructions are discussed. The processor may include a plurality of registers, a register renaming unit, a decoder, and a partial-width execution unit. The register renaming unit provides an architectural register file to store packed data operands each of which include a plurality of data elements. The decoder is to decode a first and second set of instructions that each specify one or more registers in the architectural register file. The first set of instructions specify operations to be performed on all of the data elements stored in the one or more specified registers. In contrast, the second set of instructions specify operations to be performed on only a subset of the data elements. The partial-width execution unit is to execute operations specified by either of the first or the second set of instructions.

    摘要翻译: 讨论了用于执行部分宽度打包数据指令的方法和装置。 处理器可以包括多个寄存器,寄存器重命名单元,解码器和部分宽度执行单元。 寄存器重命名单元提供架构寄存器文件以存储打包数据操作数,每个数据操作数包括多个数据元素。 解码器是对第一和第二组指令进行解码,每组指令在架构寄存器文件中指定一个或多个寄存器。 第一组指令指定要对存储在一个或多个指定寄存器中的所有数据元素执行的操作。 相比之下,第二组指令指定仅对数据元素的子集执行的操作。 部分宽度执行单元是执行由第一组或第二组指令指定的操作。

    Executing partial-width packed data instructions
    9.
    发明授权
    Executing partial-width packed data instructions 有权
    执行部分宽度打包的数据指令

    公开(公告)号:US07467286B2

    公开(公告)日:2008-12-16

    申请号:US11126049

    申请日:2005-05-09

    IPC分类号: H04Q3/00

    摘要: A method and apparatus are provided for executing packed data instructions. According to one aspect of the invention, a processor includes registers, a register renaming unit coupled to the registers, a decoder coupled to the register renaming unit, and a partial-width execution unit coupled to the decoder. The register renaming unit provides an architectural register file to store packed data operands that include data elements. The decoder is to decode a first and second set of instructions that each specify one or more registers in the architectural register file. Each of the instructions in the first set specify operations to be performed on all of the data elements. In contrast, each of the instructions in the second set specify operations to be performed on only a subset of the data elements. The partial-width execution unit is to execute operations specified by either the first or second set of instructions.

    摘要翻译: 提供了一种用于执行打包数据指令的方法和装置。 根据本发明的一个方面,处理器包括寄存器,耦合到寄存器的寄存器重命名单元,耦合到寄存器重命名单元的解码器以及耦合到解码器的部分宽度执行单元。 寄存器重命名单元提供架构寄存器文件来存储包括数据元素的打包数据操作数。 解码器是对第一和第二组指令进行解码,每组指令在架构寄存器文件中指定一个或多个寄存器。 第一组中的每个指令指定要对所有数据元素执行的操作。 相比之下,第二组中的每个指令指定仅对数据元素的子集执行的操作。 部分宽度执行单元是执行由第一组或第二组指令指定的操作。

    Synchronization of weakly ordered write combining operations using a
fencing mechanism
    10.
    发明授权
    Synchronization of weakly ordered write combining operations using a fencing mechanism 失效
    使用栅栏机制同步弱序写入组合操作

    公开(公告)号:US6073210A

    公开(公告)日:2000-06-06

    申请号:US53377

    申请日:1998-03-31

    CPC分类号: G06F13/1631 G06F12/0802

    摘要: The present invention discloses a method and apparatus for synchronizing weakly ordered write combining operations. A memory controller has a buffer to service memory accesses. A store fence instruction is dispatched to the memory controller. If the buffer contains at least a data written by at least one of the weakly ordered write combining operations prior to the store fence instruction, then the store fence instruction is blocked until a block in the buffer containing the data is globally observed. If the buffer does not contain any data written by at least one of the write combining operations prior to the store fence instruction, then the store fence instruction is accepted by the memory controller.

    摘要翻译: 本发明公开了一种用于使弱顺序的写入组合操作同步的方法和装置。 存储器控制器具有用于服务存储器访问的缓冲器。 存储栏指令被发送到存储器控制器。 如果缓冲区至少包含由存储栏指令之前的弱顺序写入组合操作中的至少一个写入的数据,则存储栅栏指令被阻止,直到包含数据的缓冲区中的块被全局观察到。 如果在存储栏指令之前缓冲器不包含写入组合操作中的至少一个写入的任何数据,则存储器控制器接受存储栅栏指令。