Mixing instructions with different register sizes
    21.
    发明授权
    Mixing instructions with different register sizes 有权
    混合使用不同寄存器大小的指令

    公开(公告)号:US08694758B2

    公开(公告)日:2014-04-08

    申请号:US11965667

    申请日:2007-12-27

    IPC分类号: G06F9/34

    摘要: When legacy instructions, that can only operate on smaller registers, are mixed with new instructions in a processor with larger registers, special handling and architecture are used to prevent the legacy instructions from causing problems with the data in the upper portion of the registers, i.e., the portion that they cannot directly access. In some embodiments, the upper portion of the registers are saved to temporary storage while the legacy instructions are operating, and restored to the upper portion of the registers when the new instructions are operating. A special instruction may also be used to disable this save/restore operation if the new instruction are not going to use the upper part of the registers.

    摘要翻译: 当只能在较小寄存器上运行的传统指令与具有较大寄存器的处理器中的新指令混合时,使用特殊处理和架构来防止遗留指令在寄存器上部的数据引起问题,即 ,他们不能直接访问的部分。 在一些实施例中,当旧指令正在操作时,寄存器的上部保存到临时存储器中,并且当新指令正在操作时将寄存器的上部部分恢复到寄存器的上部。 如果新指令不会使用寄存器的上半部分,也可以使用特殊指令禁用此保存/恢复操作。

    APPARATUS AND METHOD OF IMPROVED INSERT INSTRUCTIONS
    25.
    发明申请
    APPARATUS AND METHOD OF IMPROVED INSERT INSTRUCTIONS 有权
    装置和改进插入指令的方法

    公开(公告)号:US20130283021A1

    公开(公告)日:2013-10-24

    申请号:US13976992

    申请日:2011-12-23

    IPC分类号: G06F9/30

    摘要: An apparatus is described having instruction execution logic circuitry to execute first, second, third and fourth instruction. Both the first instruction and the second instruction insert a first group of input vector elements to one of multiple first non overlapping sections of respective first and second resultant vectors. The first group has a first bit width. Each of the multiple first non overlapping sections have a same bit width as the first group. Both the third instruction and the fourth instruction insert a second group of input vector elements to one of multiple second non overlapping sections of respective third and fourth resultant vectors. The second group has a second bit width that is larger than said first bit width. Each of the multiple second non overlapping sections have a same bit width as the second group. The apparatus also includes masking layer circuitry to mask the first and third instructions at a first resultant vector granularity, and, mask the second and fourth instructions at a second resultant vector granularity.

    摘要翻译: 描述了具有执行第一,第二,第三和第四指令的指令执行逻辑电路的装置。 第一指令和第二指令都将第一组输入向量元素插入到相应的第一和第二合成向量的多个第一非重叠部分之一中。 第一组具有第一位宽度。 多个第一非重叠部分中的每一个具有与第一组相同的位宽度。 第三指令和第四指令都将第二组输入矢量元素插入相应的第三和第四合成矢量的多个第二非重叠部分中的一个。 第二组具有大于所述第一位宽度的第二位宽度。 多个第二非重叠部分中的每一个具有与第二组相同的位宽度。 该装置还包括掩蔽层电路,以第一合成矢量粒度掩蔽第一和第三指令,并以第二合成向量粒度掩蔽第二和第四指令。