公开(公告)号：WO0045257A3

公开(公告)日：2001-03-08

申请号：PCT/US0002239

申请日：2000-01-28

Applicant: ATI INT SRL ,  YATES JOHN S JR ,  REESE DAVID L ,  HOHENSEE PAUL H ,  ADLER MICHAEL C ,  DYKE KORBIN S VAN ,  RAMESH T R ,  THUSOO SHALESH ,  SAUND GURJEET SINGH ,  PURCELL STEPHEN C ,  PATKAR NITEEN ARAVIND ,  NIJHAWAN SANDEEP ,  STORCH MATTHEW F ,  JURICH DALE R ,  CAMPBELL PAUL

Inventor： YATES JOHN S JR ,  REESE DAVID L ,  HOHENSEE PAUL H ,  ADLER MICHAEL C ,  VAN DYKE KORBIN S ,  RAMESH T R ,  THUSOO SHALESH ,  SAUND GURJEET SINGH ,  PURCELL STEPHEN C ,  PATKAR NITEEN ARAVIND ,  NIJHAWAN SANDEEP ,  STORCH MATTHEW F ,  JURICH DALE R ,  CAMPBELL PAUL

IPC: G06F12/08 ,  G06F9/30 ,  G06F9/455 ,  G06F9/46 ,  G06F12/10 ,  G06F9/318 ,  G06F9/38

CPC classification number: G06F9/30189 ,  G06F9/30174 ,  G06F9/3808 ,  G06F9/455

Abstract: A computer able to execute programs coded in either of two binary instruction sets. Memory is divided into regions, and each region is marked to indicate which of the two instruction sets are to be used to execute instructions fetched from that region. The native operating system manages contexts so that the operating system for the guest instruction set architecture can context switch, even if the process being context-switched out is a process in the native instruction set. Code in the guest instruction set is profiled to determine which portions are most profitably translated into the native instruction set. Circuitry recognizes when execution of a binary in the guest instruction set has reached a flow point for which a translated native equivalent exists. Concurrency controls protect the translated native code against modification by self-modifying code or DMA writes.

Abstract translation: 能够执行以两个二进制指令集中的任何一个编码的程序的计算机。 存储器被分成区域，并且每个区域被标记以指示两个指令集中的哪一个用于执行从该区域获取的指令。 本地操作系统管理上下文，使得用于客户指令集体系结构的操作系统可以上下文切换，即使上下文切换的进程是本机指令集中的进程。 访客指令集中的代码被分析，以确定哪些部分最有利地转换为本机指令集。 电路识别在客户指令集中的二进制数据的执行已经达到翻译的本机等价物的流程点时。 并发控制通过自修改代码或DMA写入保护翻译的本机代码免受修改。

公开(公告)号：WO0045257B1

公开(公告)日：2001-06-14

申请号：PCT/US0002239

申请日：2000-01-28

Applicant: ATI INT SRL ,  YATES JOHN S JR ,  REESE DAVID L ,  HOHENSEE PAUL H ,  ADLER MICHAEL C ,  DYKE KORBIN S VAN ,  RAMESH T R ,  THUSOO SHALESH ,  SAUND GURJEET SINGH ,  PURCELL STEPHEN C ,  PATKAR NITEEN ARAVIND ,  NIJHAWAN SANDEEP ,  STORCH MATTHEW F ,  JURICH DALE R ,  CAMPBELL PAUL

Inventor： YATES JOHN S JR ,  REESE DAVID L ,  HOHENSEE PAUL H ,  ADLER MICHAEL C ,  VAN DYKE KORBIN S ,  RAMESH T R ,  THUSOO SHALESH ,  SAUND GURJEET SINGH ,  PURCELL STEPHEN C ,  PATKAR NITEEN ARAVIND ,  NIJHAWAN SANDEEP ,  STORCH MATTHEW F ,  JURICH DALE R ,  CAMPBELL PAUL

IPC: G06F12/08 ,  G06F9/30 ,  G06F9/455 ,  G06F9/46 ,  G06F12/10 ,  G06F9/318 ,  G06F9/38

CPC classification number: G06F9/30189 ,  G06F9/30174 ,  G06F9/3808 ,  G06F9/455

Abstract: A computer able to execute programs coded in either of two binary instruction sets. Memory is divided into regions, and each region is marked to indicate which of the two instruction sets are to be used to execute instructions fetched from that region. The native operating system manages contexts so that the operating system for the guest instruction set architecture can context switch, even if the process being context-switched out is a process in the native instruction set. Code in the guest instruction set is profiled to determine which portions are most profitably translated into the native instruction set. Circuitry recognizes when execution of a binary in the guest instruction set has reached a flow point for which a translated native equivalent exists. Concurrency controls protect the translated native code against modification by self-modifying code or DMA writes.

Abstract translation: 计算机能够执行以两个二进制指令集编码的程序。 存储器被划分成区域，并且每个区域被标记以指示哪两个指令集将被用于执行从该区域取出的指令。 本地操作系统管理上下文，以便来宾指令集架构的操作系统可以进行上下文切换，即使上下文切换出来的进程是本机指令集中的进程也是如此。 来宾指令集中的代码被分析以确定哪些部分最有利地被翻译成本地指令集。 电路识别访客指令集中的二进制文件的执行何时已经达到翻译的本地等价物所存在的流动点。 并发控制通过自修改代码或DMA写入保护已翻译的本地代码免遭修改。