ARITHMETIC PROCESSOR

专利名称：ARITHMETIC PROCESSOR发明人：SAKURAI YOSHIO申请号：JP24081085申请日：19851028公开号：JPS62100835A公开日：19870511

摘要：PURPOSE:To simplify the constitution of a peripheral circuit of a control flip-flop group by adding newly a means to add a microinstruction according to the readingresult of the flip-flop group in case an address is designated. CONSTITUTION:Thisarithmetic processor extracts the microinstructions successively out of a microprogrammemory 3 and carries out the arithmetic processing in accordance with each

microinstruction. In this respect, the control flip-flop FF which are needed for executionof said arithmetic processing are divided into groups and the address of the program 3 ispartly allocated to each group. A microinstruction adding circuit 6 adds the controlinformation to the reading enable state. In such a constitution, it is not needed to providea large quantity of hardware like a processor bus sequence control circuit, etc. at theperiphery of the group 4.

申请人：NEC CORP

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