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    • 9. 发明专利
    • Central processor
    • 中央处理器
    • JPS6115235A
    • 1986-01-23
    • JP13408884
    • 1984-06-30
    • Oki Electric Ind Co Ltd
    • HIRUKO TAKAHIKOWATANABE TAKASHITAKASE JIYUNICHI
    • G06F9/38
    • PURPOSE: To perform the comparative calculation of addresses without using any special comparator by using an idle state of an arithmetic logical operatioin circuit to compare the address scales and detecting a state where a prefetch instruction string is invalidated.
      CONSTITUTION: A store start address is set to a RAM9 together with the store byte number set to a BC10 respectively, and a memory store action is started. Then the contents of the RAM9 and the store byte number are shunted to an SMAR11 and an SBC12 respectively. Therefore the write data byte position is invalidated if it is positioned in a prefetched instruction area enclosed by (PC) and (IAR) as long as a prefetch instruction train is invalid. Thus (SMAR)+ (SBC)>(PC) and (SMAR)
    • 目的:通过使用算术逻辑运算电路的空闲状态比较地址比例和检测预取指令字符串无效的状态,不使用任何特殊比较器来执行地址的比较计算。 构成:将存储起始地址设置为RAM9,并将存储字节数字分别设置为BC10,并开始存储器存储动作。 然后将RAM9的内容和存储字节数分别分别分配给SMAR11和SBC12。 因此,只要预取指令序列无效,写入数据字节位置就位于由(PC)和(IAR)包围的预取指令区域中。 因此满足(SMAR)+(SBC)>(PC)和(SMAR)<(IAR),其中(PC)<=(IAR)被满足。 为了检查所述等式的条件,与存储器存储动作并行地进行比较运算。 当满足所述等式的条件时,IBR14内的指令序列无效。 然后将(PC)传送到IAR13,再次开始指令的预取动作,并读取改变的指令字符串。
    • 10. 发明专利
    • ADDRESS CONVERSION SYSTEM
    • JPS613252A
    • 1986-01-09
    • JP12368284
    • 1984-06-18
    • OKI ELECTRIC IND CO LTD
    • NOJIMA HIROMITAKASE JIYUNICHI
    • G06F12/02G06F12/06
    • PURPOSE:To reduce the quantity of hardware while maintaining processing ability by obtaining address conversion information from an address conversion list unless there is no effective address conversion information in the address conversion table. CONSTITUTION:The BANK in an input/output main storage address is used to refer to ATB provided to an address converter. The low-order 10 bits of RPA are compared with the PA of the main input/output main storage address and when they do not coincide with each other, it is decided that the entry is ineffective and an address conversion list pointer ATLP is referred to. The sum of the contents of the ATLP and the PA of the input/output main storage address is used as a system main storage address to refer to the ATL, thereby updating the contents of the ATB corresponding to the BANK while deciding on the RPA of the system main storage address. The RPA is combined with a part D of the input/output main storage address to perform address conversion and used as the system main storage address to perform data transfer.