| 摘要 |
PROBLEM TO BE SOLVED: To execute a subsequent instruction before the writing of plural pieces of data completes without increasing the reading report of a register file and to improve processing ability at the time of writing plural pieces of data into a memory device with one instruction in an information processor. SOLUTION: When an instruction which a decoder 1 decodes is the writing instruction of plural pieces of data, the operation result (data 12) of the plural subsequent instructions is stored in the latches L0-L3 in a writing data holding circuit 6 and data stored in the latches L0-L3 are written into a memory device 40 independent of the execution of the instruction. The correspondence of the latches L0-L3 and the registers of a register file 2 is designated by the source register number of the plural pieces of data writing instruction. Since data written into the memory device 40 are not read from the register file 2, processing ability can be improved.
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