Arrangement for converting virtual addresses into physical addresses in
a data processing system
    1.
    发明授权
    Arrangement for converting virtual addresses into physical addresses in a data processing system 失效
    在数据处理系统中将虚拟地址转换为物理地址的布置

    公开(公告)号:US4279014A

    公开(公告)日:1981-07-14

    申请号:US933546

    申请日:1978-08-14

    IPC分类号: G06F12/02 G06F12/10 G06F9/20

    CPC分类号: G06F12/0292 G06F12/1018

    摘要: An arrangement for dynamically translating virtual address into absolute or physical addresses of items of data. Each virtual address includes a segment table number, a segment table entry, and a segment page number. Segment descriptors are stored in a central memory. The address of a particular segment descriptor may be calculated from the segment table number and the segment table entry. From the segment descriptor, a unique identification termed a logic page number may be calculated. The logic page number permits pseudo-associative access to a table containing a number of entries proportional to the number of physical pages of the main memory, allowing the physical address to be determined.

    摘要翻译: 用于将虚拟地址动态地转换成数据项的绝对或物理地址的布置。 每个虚拟地址包括段表号,段表条目和段页号。 段描述符存储在中央存储器中。 可以从段表号和段表项计算特定段描述符的地址。 可以从段描述符计算称为逻辑页码的唯一标识。 逻辑页码允许对包含与主存储器的物理页数成比例的多个条目的表的伪相关访问,从而允许确定物理地址。