| 摘要 |
An operation apparatus includes signal lines, a decoder connected with the signal lines and configured to sequentially decode first and second instruction codes on the signal lines, an instruction executing section configured to execute operation processing based on each of the decoding results of the first and second instruction codes by the decoder, respectively, and an output unit connected with the signal lines and configured to continuously and sequentially output the first and second instruction codes onto the signal lines. Each of the first and second instruction codes comprises a first bit data and a second bit data. The first bit data of the first instruction code indicates that the first instruction code belongs to a first one of instruction code groups and at least a portion of the second bit data of the first instruction code indicates an instruction content of the first instruction code. Also, the first bit data of the second instruction code indicates that the second instruction code belongs to a second one of the instruction code groups and at least a portion of the second bit data of the second instruction code is same as that of the second bit data of the first instruction code.
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