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    • 4. 发明授权
    • Digital data processing system incorporating apparatus for resolving
names
    • 数字数据处理系统,包括解析名称的装置
    • US4803619A
    • 1989-02-07
    • US877699
    • 1986-06-20
    • David H. BernsteinWalter A. WallachMichael S. RichmondJohn K. AhlstromJohn F. PilatDavid A. FarberRichard A. BelgardRichard G. Bratt
    • David H. BernsteinWalter A. WallachMichael S. RichmondJohn K. AhlstromJohn F. PilatDavid A. FarberRichard A. BelgardRichard G. Bratt
    • G06F9/35G06F9/355G06F9/42G06F13/00G06F9/00
    • G06F9/342G06F9/35G06F9/4426
    • Apparatus in a digital computer system capable of performing a call operation and a return operation for obtaining addresses of data from names representing the data. Each name is permanently associated with a procedure containing instructions to which the digital computer system responds. Each name further corresponds to a name table entry which is permanently associated with the same procedure. The corresponding name table entry for a name specifies how a base address and a displacement are to be derived using a plurality of current base addresses. The values of these addresses change only when the computer system executes a call operation suspending a current execution of a procedure and commencing another current execution or a return operation terminating the current execution and resuming the execution which was suspended to commence the terminated execution. The operation of resolving a name, i.e., obtaining the address of the data represented by the name, is performed by name interpretation apparatus in processors of the data processing system. In response to a name, the name interpretation apparatus locates the name table entry corresponding to the name fetches the name table entry, calculates the base address and the displacement using the name table entry and the current architectural base addresses, and then adds the base address to the displacement to obtain the address of the data represented by the name.
    • 能够执行呼叫操作和返回操作的数字计算机系统中的装置,用于从表示数据的名称获得数据的地址。 每个名称与包含数字计算机系统响应的指令的过程永久关联。 每个名称进一步对应于与相同过程永久关联的名称表条目。 名称的相应名称表项指定如何使用多个当前基地址来导出基地址和位移。 这些地址的值只有在计算机系统执行暂停执行过程的当前执行的调用操作并且开始当前执行的另一个当前执行或返回操作终止当前执行并且恢复被暂停的执行以开始终止执行时才改变。 通过名称解释装置在数据处理系统的处理器中执行解析名称的操作,即获得由该名称表示的数据的地址。 响应于名称,名称解释装置找到与名称相对应的名称表条目,获取名称表项,使用名称表项和当前架构基地址来计算基地址和位移,然后添加基地址 以位移获取由名称表示的数据的地址。