公开(公告)号：US3699526A

公开(公告)日：1972-10-17

申请号：US3699526D

申请日：1971-03-26

Applicant: IBM

Inventor： ISKIYAN JAMES L ,  WADDELL JAMES M ,  WAY DONALD L

IPC: G06F9/318 ,  G06F9/32 ,  G06F9/00

CPC classification number: G06F9/30196 ,  G06F9/30058 ,  G06F9/30145 ,  G06F9/30181

Abstract: A programmable machine selects from among a plurality of branches on condition based upon intrinsic characteristics of the instruction stream in the machine. In a preferred form of the invention, an explicitly addressed machine selects from among a plurality of sets of branches on condition based upon the control memory address from which the branch instruction was fetched, such control memory address being an intrinsic characteristic. Such intrinsic characteristics may selectively include control memory addresses of other instruction words fetched from memory. An instruction decoder has plural decoder sections selectable in accordance with such intrinsic characteristics enabling one instruction word to be variably decoded in accordance with instruction stream characteristics.

Abstract translation: 基于机器中的指令流的固有特性，可编程机器根据条件从多个分支中进行选择。 在本发明的优选形式中，明确地寻址的机器基于从其获得分支指令的控制存储器地址，在条件上从多个分支组中选择这样的控制存储器地址作为固有特性。 这种固有特性可以选择性地包括从存储器取出的其他指令字的控制存储器地址。 指令解码器具有根据这样的固有特性可选择的多个解码器部分，使得一个指令字能够根据指令流特性被可变地解码。

公开(公告)号：FR2408952A1

公开(公告)日：1979-06-08

申请号：FR7824965

申请日：1978-08-21

Applicant: IBM

Inventor： HARTUNG MICHAEL H ,  ISKIYAN JAMES L ,  ROBERTS JAMES G ,  TENNISON ROBERT D

IPC: G06F3/06 ,  G06F11/08 ,  G06F11/30 ,  G06F13/00 ,  G08C25/02 ,  G11B20/18 ,  H04L1/10