Multi-time compression/decompression method of application program

Abstract

The invention relates to a multi-time compression / decompression method of an application program. The method comprises the following steps: firstly, when a new edition of application program is made, the compression of multiple times is carried out on the application program, so as to achieve the purpose of reducing the size of the new edition of application program, and different compression algorithms are adopted for each compression of multiple times, wherein the multiple times refer to more than two times; and secondly, when the compressed application program is started, the application program compressed for multiple times is subjected to decompression, copying and memory cleaning, so as to obtain an application program to which a CPU (Central Processing Unit) can execute finally. By utilizing the multi-time compression / decompression method of the application program provided by the invention, a set of complete compression while manufacturing, decompression while starting and memory space distribution scheme is provided, and a larger application program can be stored under the condition that the hardware FLASH storage space is not changed, so that both the hardware cost is saved and the compatibility of the original software is met.

Description

technical field [0001] The invention relates to the technical field of storage and operation of application programs in a FLASH storage space on a computer disk, in particular to a method for multiple compression and decompression of application programs. In particular, it refers to a method in which an application program is compressed multiple times during production and decompressed multiple times during startup. Background technique [0002] Due to the limited size of the FLASH storage space on the machine disk, the space for storing application programs is often also limited in size. In order to store a larger application program in a smaller FLASH space, the application program is generally compressed when the application program is made. When the compressed application program starts, the CPU cannot directly execute the compressed application program. Therefore, it is also necessary to decompress the compressed application program. [0003] With the continuous incre...

AI Technical Summary

Problems solved by technology

[0003] With the continuous increase of software functions, the size of the application program is also increasing, and there will be problems that the application program is too large and there is not enough FLASH space to store it.

If the FLASH size is increased, the hardware cost will be increased, and the FLASH space supported by the CPU is not infinite, and it is unrealistic to add FLASH hardware to the already produced and used disk. and lead to the problem of not having enough space to store

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