Abnormal on-site recovery method, device and computer-readable storage medium
An exception and exception return technology, applied in the computer field, can solve the problems of low processor execution efficiency and high power consumption, and achieve the effect of improving execution efficiency, reducing occupied space and power consumption
Active Publication Date: 2020-12-01
LOONGSON TECH CORP
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Problems solved by technology
[0006] This application provides a method, device, and computer-readable storage medium for restoring an abnormal scene, so as to solve the problems of low processor execution efficiency and high power consumption in the existing abnormal scene restoring method
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[0055] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0056] At present, when the processor is executing a program normally, it is often interrupted by external events, system calls, or program instruction exceptions. Interruptions from system calls and program instruction exceptions are called ordinary exceptions, and interruptions from external events are called interrupts. Once an exception is generated, the...
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The invention provides an abnormal field restoration method and device and a computer readable storage medium. The method comprises the steps of obtaining and executing an anomaly returning instruction, wherein the abnormal returning instruction comprises an operation code, and the operation code is used for indicating execution of a processor till the last instruction of an abnormal processing function; executing the anomaly returning instruction to modify a program counter value and pop up information of a target register file pressed into an anomaly stack and returning to continue to execute an interrupted normal processing function. According to the abnormal field restoration method and device and the computer readable storage medium, a software code does not need to restore an abnormal field, the space and power dissipation occupied by the software code are lowered, and the executing efficiency of the processor is improved.
Description
technical field [0001] The present application relates to the field of computer technology, and in particular to a method, device, and computer-readable storage medium for restoring abnormal sites. Background technique [0002] In an existing computer system, the processor serves as a system control center and needs to manage multiple hardware devices in the system. For example, when the processor normally executes a program in the system, it may be interrupted by external events, system calls, or abnormal execution of instructions. At this time, the processor executes the context save of the program and turns to process the abnormal event, and restores the abnormal execution site after the execution of the abnormal event is completed, and continues to execute the interrupted processing program. [0003] At this stage, the realization of abnormal site protection and recovery can be realized by running a set software program. Specifically, before the exception event starts ...
Claims
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IPC IPC(8): G06F9/38G06F11/07
CPCG06F9/3861G06F11/0715
Inventor 邢金璋杨灿汪文祥
Owner LOONGSON TECH CORP