(EN) A data processing apparatus, a method of operating a data processing apparatus, a non-transitory computer readable storage medium, and an instruction are provided. The instruction specifies a first source register and a second source register. In response to the instruction control signals are generated, causing processing circuitry to perform a dot product operation. For this operation at least afirst data element and a second data element are extracted from each of the first source register and the second source register, such that then at least first data element pairs and second data element pairs are multiplied together. The dot product operation is performed independently in each of multiple intra-register lanes across each of the first source register and the second source register. A widening operation with a large density of operations per instruction is thus provided.
(ZH) 提供了数据处理装置、操作数据处理装置的方法、非暂态计算机可读存储介质和指令。该指令指定第一源寄存器和第二源寄存器。响应于该指令，生成控制信号，从而使处理电路执行点积运算。为了该运算，从第一源寄存器和第二源寄存器中的每一个中提取至少第一数据元素和第二数据元素，使得然后将至少第一数据元素对和第二数据元素对相乘在一起。在第一源寄存器和第二源寄存器中的每一个上的多个寄存器内通道中的每一个中独立地执行点积操作。从而提供了每指令具有大密度运算的加宽运算。
