| 摘要 |
In order to implement vector operation at a higher rate, a processor chip, which is provided with a vector unit in addition to a scalar unit, is prepared. A vector operation mode is first determined, among first and second modes, via which the vector operation is implemented under control of the processor chip. The determination of the vector operation mode is carried out in said processor chip. Thereafter, the vector operation is implemented using the vector unit provided in the processor chip if the vector operation mode is the first mode. On the other hand, the vector operation is implemented using a vector unit, which is provided outside the processor chip, if the vector operation mode is the second mode.
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