A method for processing instruction information

A processing method and a technology of instruction information, applied in the direction of digital data authentication, etc., can solve the problems of single-chip application data theft and destruction, and achieve the effect of solving the problem of instruction constraints

Active Publication Date: 2021-03-19
兆讯恒达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these instructions are internal instructions that are not disclosed to the public, once they are obtained by criminals during the application stage, it may lead to the theft and destruction of the application data of the single-chip microcomputer.

Method used

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  • A method for processing instruction information
  • A method for processing instruction information
  • A method for processing instruction information

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0046] In the embodiment of the present invention, the operating system distinguishes the instruction set according to the system state. Each instruction has its corresponding system state. The instruction sets executed under different system states are different: for example, the production stage of the single-chip microcomputer is defined as the first The system state, and the corresponding instruction type set is the test instruction set...

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Abstract

The invention relates to an instruction information processing method, which is characterized by comprising the following steps of obtaining a state word of an operating system; receiving a first instruction; disassembling the first instruction to generate a first instruction header; disassembling the first instruction header to generate a first instruction type and a first instruction code; performing the legal type verification processing on the first instruction type according to the operating system character; and performing the legal instruction verification processing on the first instruction code according to the operating system state word and the first instruction type, so that by identifying the state of the operating system, the use limitation of the instruction cluster is realized, and the use safety of the product is further ensured.

Description

technical field [0001] The invention relates to the technical field of embedded computers, in particular to a method for processing instruction information. Background technique [0002] The manufacturing process of single-chip microcomputer is complicated, which is mainly divided into three stages: manufacturing, personalization, and application. In order to meet the needs of single-chip microcomputers at various stages, the single-chip microcomputer operating system (COS, Chip Operat i on System) provides a rich set of instructions to support: a test instruction set for manufacturing; a setting instruction set for personalization; a set of instructions for market applications The application layer instruction set provided. Among them, the test instruction set can destroy the data in the system area and the user area, and the personalization instruction set can reset the data in the application area. Although these instructions are internal instructions that are not discl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/44
CPCG06F21/44
Inventor 李立焦英华
Owner 兆讯恒达科技股份有限公司
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