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11. 发明专利

JPS6118041A Arithmetic processor 失效
标题翻译：算术处理器
公开(公告)号：JPS6118041A
公开(公告)日：1986-01-25
申请号：JP13796784
申请日：1984-07-05
申请人： Oki Electric Ind Co Ltd
发明人： WATANABE TAKASHI , HIRUKO TAKAHIKO , TAKASE JIYUNICHI
IPC分类号： G06F9/22 , G06F7/00
摘要： PURPOSE: To decrease the number of steps of a microinstruction by selecting the microinstruction or the output of an arithmetic processing signal generating circuit by the microinstruction itself and giving the arithmetic designation to an arithmetic circuit from the result of said selection.
CONSTITUTION: A ROM10 stores the arithmetic designation information containing the arithmetic type of an instruction and the arithmetic data width according to an instruction code. An arithmetic processing signal generating circuit 11 selects a microinstruction or the circuit 10 according to the contents of said microinstruction. Based on the result of this selection, the arithmetic is designated to arithmetic circuits 12 and 13. Thus several types of instructions can be processed in the addresses of the same microprogram. This attains reduction of the number of steps of a microprogram.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过微指令本身选择微指令或算术处理信号产生电路的输出来减少微指令的步数，并根据所述选择的结果向算术电路给出算术指定。构成：ROM10根据指令代码存储包含指令的算术类型的算术指定信息和算术数据宽度。算术处理信号发生电路11根据所述微指令的内容选择微指令或电路10。基于该选择的结果，算术被指定给算术电路12和13.因此，可以在相同微程序的地址中处理几种类型的指令。这实现了微程序的步骤数量的减少。

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