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    • 9. 发明专利
    • Control system of memory copy
    • 存储器复制控制系统
    • JPS5783861A
    • 1982-05-25
    • JP15827180
    • 1980-11-12
    • Fujitsu LtdHitachi LtdNec CorpNippon Telegr & Teleph Corp Oki Electric Ind Co Ltd
    • IKUTA AKIRAKAWANOBE TADASHIENDOU AKIRADOI AKIHIKOKANAZAWA NOBUHARU
    • G06F12/16G06F11/20G06F13/28
    • G06F13/28
    • PURPOSE:To prevent the lowering of the overall processing capacity of a common controller, by executing autonomously memory copying action through the common memory controller just by a command from a processor and meanwhile carrying out a process independent of the copying action through the processor. CONSTITUTION:When a common memory controller 2-0 and 2-1 receive a command indicating to copy a part of the storage data of a common memory 3-0 to a common memory 3-1 from a processor CP1, the controller 2-0 fetches the addresses at and after a tip address 18-0 in a memory region 17-0 where the data to be copied is stored. While the controller 2-1 receives the data via a control circuit 5-0. Then whether or not a request for the operations excepting a main copying action is given to the controllers 2-0 and 2-1 from the processor CP1 is confirmed every time the copying action is through with a word. When no request exists, the main copying action is continued. Then a reading or writing action, if carried out, is interlaid between the main copying action.
    • 目的:为了防止公共控制器的整体处理能力的降低,只需通过来自处理器的命令通过公共存储器控制器执行自主的存储器复制动作,同时通过处理器执行独立于复制动作的处理。 构成:当公共存储器控制器2-0和2-1从处理器CP1接收到指示将公共存储器3-0的一部分存储数据的一部分存储到公共存储器3-1的命令时,控制器2-0 在存储要被复制的数据的存储器区域17-0中取出提示地址18-0之后的地址。 而控制器2-1经由控制电路5-0接收数据。 然后,在每次复制动作通过一个字时,确认从处理器CP1向控制器2-0和2-1发出除了主复制动作之外的操作的请求。 当不存在请求时,继续执行主复制操作。 然后,如果执行了阅读或写作操作,则会在主要复印操作之间进行交织。