Electronic apparatus with compressed data storage and control method thereof

摘要

An electronic apparatus includes a read-only memory (ROM), a random access memory (RAM), a processing module, a demand paging module and a decompression module. The ROM stores multiple sets of compressed data corresponding to a plurality of sets of uncompressed data. The plurality of sets of uncompressed data are divided from one same set of original data. According to a request associated with the set of original data and from the processing module, the demand paging module selects one or more sets from the multiple sets of compressed data. The decompression module decompresses and stores the selected one or more sets of compressed data to the RAM for use of the processing module.

主权项

1. An electronic device, comprising:
a read-only memory (ROM) that stores a plurality of sets of compressed data corresponding to a plurality sets of uncompressed data, wherein the plurality sets of uncompressed data are divided from one same set of original data; a random access memory (RAM); a processing module, coupled to the ROM and the RAM; a demand paging module that receives a request from the processing module and upon determining that the request is aiming at one set of the compressed data that only corresponds to one set of the uncompressed data of the original data, selects only the one set of the compressed data; and a decompression module, coupled to the demand paging module, that decompresses and stores the one set of compressed data selected by the demand paging module to the RAM for use by the processing module, wherein the RAM comprises a memory section for storing a set of decompressed data generated from decompressing the selected one set of compressed data by the decompression module; the processing module dynamically adjusts a size of the memory section, and wherein the processing module dynamically adjusts a size of the memory section based on priority of an application associated with the set of compressed data.