Method and system including memory patching utilizing a transmission
control signal and circuit
    1.
    发明授权
    Method and system including memory patching utilizing a transmission control signal and circuit 失效
    方法和系统包括利用传输控制信号和电路的存储器补丁

    公开(公告)号:US5813043A

    公开(公告)日:1998-09-22

    申请号:US678898

    申请日:1996-07-12

    CPC分类号: G06F9/328 G06F8/66

    摘要: A data processing system (100, 300) allows an individually mappable word of memory to patch a desired memory location. During operation, a memory system (130) monitors an address/control bus to determine when an access to a specified word in a system memory (120) occurs. When an access to the specified word occurs, address comparators (140) determine if a memory location to be patched is being accessed, and provides an active signal to the access control circuit (150), which prevents data flow with the system memory (120) and enables the data flow with a separate memory (170) by controlling a transmission gate 115. Therefore, the data access occurs from the separate memory and not the system memory.

    摘要翻译: 数据处理系统(100,300)允许单独可映射的存储器字来修补期望的存储器位置。 在操作期间,存储器系统(130)监视地址/控制总线以确定何时发生对系统存储器(120)中的指定字的访问。 当访问指定的字时,地址比较器(140)确定是否正在访问要修补的存储器位置,并且向访问控制电路(150)提供有效信号,这阻止了与系统存储器(120)的数据流 ),并且通过控制传输门115使得能够利用单独的存储器(170)进行数据流。因此,数据访问从分离的存储器而不是系统存储器进行。