Digital data processing system using unique ALU register files and
micro-instruction stacks

    公开(公告)号:US4480306A

    公开(公告)日:1984-10-30

    申请号:US266425

    申请日:1981-05-22

    IPC分类号: G06F9/26 G06F9/22

    CPC分类号: G06F9/26

    摘要: A data processing system having a flexible internal structure, protected from and effectively invisible to users, with multilevel control and stack mechanisms and capability of performing multiple, concurrent operations, and providing a flexible, simplified interface to users. The system is internally comprised of a plurality of separate, independent processors, each having a separate microinstruction control and at least one separate, independent port to a central communications and memory node. The communications and memory node is an independent processor having separate, independent microinstruction control and comprised of a plurality of independently operating, microinstruction controlled processors capable of performing multiple, concurrent memory and communications operations. Addressing mechanisms allow permanent, unique identification of information as objects and an extremely large address space accessible and common to all such systems. Addresses are independent of system physical configuration and, as particularly described with reference to the invention herein, identify locations of object information to be accessed by utlizing address formats which comprise an object field, offset field and a length field so that information can be identified to bit granular level and to information type and format. Arithmetic logic unit (ALU) means, also as particularly described with reference to the invention herein, include general register means having three vertically oriented parts for storing such respective fields. Such ALU means further include an ALU microinstruction stack means having at least one microinstruction stack frame for storing the state of execution of a microinstruction. A memory microinstruction stack is provided to store a plurality of microinstruction stack frames so that microinstruction stack frames can be transferred between the ALU and the memory microinstruction stacks. Protection mechanisms provide variable access rights associated with individual bodies of information. User language instructions are transformed into dialect coded, uniform, intermediate level instructions to provide equal facility of execution for all user languages. Operands are referred to by uniform format names which are transformed, by internal mechanisms transparent to users, into addresses.

    Digital data processing system incorporating apparatus for resolving
names
    10.
    发明授权
    Digital data processing system incorporating apparatus for resolving names 失效
    数字数据处理系统,包括解析名称的装置

    公开(公告)号:US4803619A

    公开(公告)日:1989-02-07

    申请号:US877699

    申请日:1986-06-20

    CPC分类号: G06F9/342 G06F9/35 G06F9/4426

    摘要: 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.

    摘要翻译: 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。