公开(公告)号：US3928857A

公开(公告)日：1975-12-23

申请号：US39290073

申请日：1973-08-30

Applicant: IBM

Inventor： CARTER RICHARD S ,  HOGAN JR SPURGEON G ,  LEUNG WAN L ,  MCGILVRAY BRUCE L ,  WERNER ROBERT H

IPC: G06F9/38 ,  G06F9/06

CPC classification number: G06F9/381

Abstract: Apparatus for fetching instructions to an instruction register of a central processing unit, including instruction buffers for storing instructions prior to their execution in the CPU (lookahead) and apparatus for storing instructions which have been executed in the CPU (look-behind) in anticipation of their further use in, for example, programming loops. The look-behind apparatus comprises a multi-word buffer with its associated data register. The buffer data register, in addition to its function as part of the look-behind apparatus, also provides an additional level of look-ahead.

Abstract translation: 用于将指令读取到中央处理单元的指令寄存器的装置，包括用于在执行CPU之前存储指令的指令缓冲器（先行）以及用于存储在CPU（后视）中执行的指令的装置 预期他们在例如编程循环中进一步使用它们。 该查看装置包括具有相关联的数据寄存器的多字缓冲器。 缓冲器数据寄存器除了作为俯视设备的一部分的功能之外，还提供了一个额外的预览级别。