To provide a data processor which is capable of reducing memories in storage capacity, reducing its power consumption, and furthermore increasing its processing in throughput as a whole, and to provide a wireless device, a decoder, a data processing method and a data processing program.

The data processor 500 is equipped with a transposition pattern storage 530, an address generating part 540, and a control 560. Address values are generated in the address generating part 540, resting on transposition patterns stored in the transposition pattern storage 530 and used for de-interleave processing and constellation numbers stored in the control 560 to indicate de-constellation rearrangement processing methods. Processing target data corresponding to the above address values are read out from a first data storage 510, temporarily stored in a temporary data storage, and then stored in a second data storage 520.

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