公开(公告)号：US5915117A

公开(公告)日：1999-06-22

申请号：US949295

申请日：1997-10-13

申请人： Jonathan K. Ross ,  Jack D. Mills ,  James O. Hays ,  Stephen G. Burger ,  Dale C. Morris ,  Carol L. Thompson ,  Rajiv Gupta ,  Stefan M. Freudenberger ,  Gary N. Hammond ,  Ralph M. Kling

发明人： Jonathan K. Ross ,  Jack D. Mills ,  James O. Hays ,  Stephen G. Burger ,  Dale C. Morris ,  Carol L. Thompson ,  Rajiv Gupta ,  Stefan M. Freudenberger ,  Gary N. Hammond ,  Ralph M. Kling

IPC分类号： G06F9/38

CPC分类号： G06F9/3865 ,  G06F9/3842

摘要： The inventive system and method allows for software control of hardware drral of exceptions in speculative operations, and comprises three components. The first component is processor stored information which reflects the code generation strategy of applications and is used by hardware and the operating system to control exception deferral. The second component is processor stored information set by the operating system to specify to hardware which type of faults should be automatically deferred. The third component is further processor stored information which indicates to the hardware to defer certain exception causing aspects of the speculative operation, while performing other non excepting aspects of the speculative operation. The stored information is set after the operating system exception handler has unsuccessfully attempted fault resolution.

摘要翻译： 本发明的系统和方法允许软件控制在推测操作中硬件推迟异常，并且包括三个组件。 第一个组件是反映应用程序的代码生成策略的处理器存储信息，由硬件和操作系统用来控制异常延期。 第二个组件是由操作系统设置的处理器存储信息，用于指定硬件哪种类型的故障应该自动延迟。 第三组件是进一步处理器存储的信息，其指示硬件推迟导致投机操作方面的某些异常，同时执行投机操作的其他非例外方面。 存储的信息在操作系统异常处理程序未成功尝试故障解决之后进行设置。

公开(公告)号：US06993754B2

公开(公告)日：2006-01-31

申请号：US09992642

申请日：2001-11-13

申请人： Stefan M. Freudenberger ,  Evelyn Duesterwald

发明人： Stefan M. Freudenberger ,  Evelyn Duesterwald

IPC分类号： G06F9/45

CPC分类号： G06F8/443

摘要： A method of optimizing a computer program includes generating annotation information about the computer program, storing the annotation information with the computer program, and dynamically optimizing the computer program based on the annotation information while the computer program is being executed.

公开(公告)号：US06915513B2

公开(公告)日：2005-07-05

申请号：US09997062

申请日：2001-11-29

申请人： Evelyn Duesterwald ,  Stefan M. Freudenberger

发明人： Evelyn Duesterwald ,  Stefan M. Freudenberger

IPC分类号： G06F9/445 ,  G06F9/44

CPC分类号： G06F8/656

摘要： The present disclosure relates to a system and method for dynamically replacing code. In one arrangement, the system and method pertain to intercepting original program instructions during execution of the program, determining if an original program instruction is to be replaced, and dynamically replacing the program instruction with a replacement instruction if it is determined that the original program instruction is to be replaced.

摘要翻译： 本公开涉及用于动态替换代码的系统和方法。 在一种布置中，系统和方法涉及在执行程序期间拦截原始程序指令，确定是否要替换原始程序指令，如果确定原始程序指令，则用替换指令动态地替换程序指令 被替换

公开(公告)号：US06928536B2

公开(公告)日：2005-08-09

申请号：US09995775

申请日：2001-11-29

申请人： Evelyn Duesterwald ,  Stefan M. Freudenberger

发明人： Evelyn Duesterwald ,  Stefan M. Freudenberger

IPC分类号： G06F9/318 ,  G06F9/445 ,  G06F9/455

CPC分类号： G06F8/66 ,  G06F9/3017 ,  G06F9/30181

摘要： A system and method for dynamically patching code. In one embodiment, a method includes intercepting original program instructions during execution of the program using a software interface, determining whether associated instructions have been cached in a code cache of the software interface and, if so, executing the cached instructions from the code cache, if associated instructions have not been cached, determining if the original program instructions require unavailable hardware functionality, and dynamically replacing the original program instructions with replacement instructions that do not require unavailable hardware functionality if it is determined that the original program instructions require unavailable hardware functionality, the dynamic replacing including fetching replacing instructions, storing the replacement instructions in the code cache, and executing the replacement instructions from the code cache.

摘要翻译： 一种用于动态修补代码的系统和方法。 在一个实施例中，一种方法包括在使用软件接口执行程序期间拦截原始程序指令，确定相关联的指令是否已被缓存在软件接口的代码高速缓存中，并且如果是，则从代码缓存执行缓存的指令， 如果相关联的指令未被缓存，则确定原始程序指令是否需要不可用的硬件功能，并且如果确定原始程序指令需要不可用的硬件功能，则用替换指令动态地替换原始程序指令，替换指令不需要不可用的硬件功能， 动态替换，包括取代替换指令，将替换指令存储在代码高速缓存中，以及从代码缓存执行替换指令。