| 摘要 |
PURPOSE:To add a machine language instruction for indexing without adding, preparing and correcting a microprogram by using the variant of the machine language for the indexing for the inspecting pattern designation of a data type. CONSTITUTION:When a machine language instruction inputted from a main memory 100 to a machine language instruction register 110 is an machine instruction for indexing, a data type inspecting pattern designating instruction is outputted from an operand generating device 130 to a tag branching control device 150. The instruction is a variant outputted by the generating device 130, and the control device 150 executes the data type inspection to the output of a data register file 140 by the tag branching microinstruction outputted by a microprogram and the instruction outputted by the generating device 130. As such a result, the control device 150 outputs the multi-direction branching control signal of a sequencer 170. Thus, by using the variant of the machine language instruction for the indexing for the inspecting pattern designation of a data type, the machine language instruction for the indexing can be added without adding, preparing, etc., the program.
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