系统BIOS中Logo模块的研究与实现

Research and implement of module of Logo in system BIOS

在对基本输入输出系统(BIOS)代码分析的基础上,给出了系统BIOS与Logo模块的关系,讨论了Logo模块中图像文件格式的选取、解压缩、显示及其与系统BIOS的集成等关键技术.结合实际嵌入式系统平台,考虑到易于实现和显示速度,提出了改进的PCX图像显示方法,并给出了Logo模块的具体实现过程.

On the basis of analyses of the code of system basic input output system (BIOS), the relation of system BIOS and the module of Logo is given, the key technologies of implementing Logo module such as selection, decompression, display of the image and integration in system BIOS are discussed. In order to implementing easily and accelerating the display of the image, an improved display method of personal computer paintbrush (PCX) image is presented and the detailed procedure of the implement of Logo module is given on the embedded system platform.