SIMD INTEGER MULTIPLY-ACCUMULATE INSTRUCTION FOR MULTI-PRECISION ARITHMETIC
    4.
    发明申请
    SIMD INTEGER MULTIPLY-ACCUMULATE INSTRUCTION FOR MULTI-PRECISION ARITHMETIC 有权
    用于多精度算术的SIMD整数多项式累积指令

    公开(公告)号:US20140237218A1

    公开(公告)日:2014-08-21

    申请号:US13992728

    申请日:2011-12-19

    IPC分类号: G06F9/30

    摘要: A multiply-and-accumulate (MAC) instruction allows efficient execution of unsigned integer multiplications. The MAC instruction indicates a first vector register as a first operand, a second vector register as a second operand, and a third vector register as a destination. The first vector register stores a first factor, and the second vector register stores a partial sum. The MAC instruction is executed to multiply the first factor with an implicit second factor to generate a product, and to add the partial sum to the product to generate a result. The first factor, the implicit second factor and the partial sum have a same data width and the product has twice the data width. The most significant half of the result is stored in the third vector register, and the least significant half of the result is stored in the second vector register.

    摘要翻译: 乘法和累加(MAC)指令允许有效执行无符号整数乘法。 MAC指令表示作为第一操作数的第一向量寄存器,作为第二操作数的第二向量寄存器和作为目的地的第三向量寄存器。 第一向量寄存器存储第一因子,第二向量寄存器存储部分和。 执行MAC指令以将第一因子与隐式第二因子相乘以生成乘积,并将部分和添加到乘积以生成结果。 第一个因素,隐含的第二个因子和部分和具有相同的数据宽度,产品的数据宽度是两倍。 结果的最大一半存储在第三向量寄存器中,结果的最低有效半存储在第二向量寄存器中。

    INSTRUCTION FOR FAST ZUC ALGORITHM PROCESSING
    5.
    发明申请
    INSTRUCTION FOR FAST ZUC ALGORITHM PROCESSING 有权
    用于快速ZUC算法处理的指令

    公开(公告)号:US20140189290A1

    公开(公告)日:2014-07-03

    申请号:US13730230

    申请日:2012-12-28

    IPC分类号: G06F15/76

    摘要: Vector instructions for performing ZUC stream cipher operations are received and executed by the execution circuitry of a processor. The execution circuitry receives a first vector instruction to perform an update to a liner feedback shift register (LFSR), and receives a second vector instruction to perform an update to a state of a finite state machine (FSM), where the FSM receives inputs from re-ordered bits of the LFSR. The execution circuitry executes the first vector instruction and the second vector instruction in a single-instruction multiple data (SIMD) pipeline.

    摘要翻译: 用于执行ZUC流密码操作的矢量指令由处理器的执行电路接收和执行。 执行电路接收第一向量指令以对线性反馈移位寄存器(LFSR)进行更新,并且接收第二向量指令以对有限状态机(FSM)的状态进行更新,其中FSM接收来自 重新排列了LFSR的位。 执行电路在单指令多数据(SIMD)流水线中执行第一向量指令和第二向量指令。

    SIMD integer multiply-accumulate instruction for multi-precision arithmetic
    9.
    发明授权
    SIMD integer multiply-accumulate instruction for multi-precision arithmetic 有权
    用于多精度算术的SIMD整数乘法累加指令

    公开(公告)号:US09235414B2

    公开(公告)日:2016-01-12

    申请号:US13992728

    申请日:2011-12-19

    IPC分类号: G06F7/52 G06F9/30 G06F9/38

    摘要: A multiply-and-accumulate (MAC) instruction allows efficient execution of unsigned integer multiplications. The MAC instruction indicates a first vector register as a first operand, a second vector register as a second operand, and a third vector register as a destination. The first vector register stores a first factor, and the second vector register stores a partial sum. The MAC instruction is executed to multiply the first factor with an implicit second factor to generate a product, and to add the partial sum to the product to generate a result. The first factor, the implicit second factor and the partial sum have a same data width and the product has twice the data width. The most significant half of the result is stored in the third vector register, and the least significant half of the result is stored in the second vector register.

    摘要翻译: 乘法和累加(MAC)指令允许有效执行无符号整数乘法。 MAC指令表示作为第一操作数的第一向量寄存器,作为第二操作数的第二向量寄存器和作为目的地的第三向量寄存器。 第一向量寄存器存储第一因子,第二向量寄存器存储部分和。 执行MAC指令以将第一因子与隐含的第二因子相乘以生成乘积,并将部分和添加到乘积以生成结果。 第一个因素,隐含的第二个因子和部分和具有相同的数据宽度,产品的数据宽度是两倍。 结果的最大一半存储在第三向量寄存器中,结果的最低有效半存储在第二向量寄存器中。