xinxi.h

ｉｄｅ的低层驱动程序。一个工程（ｃｐｌｄ＋ｄｓｐ）的一部分。

struct current_xinxi
{
	unsigned char  type;
	unsigned short cylinder_start;
	unsigned char  head_start;
	unsigned char  sector_start;
	unsigned short cylinder_end;
	unsigned char  head_end;
	unsigned char  sector_end;
};

struct DBR
{
	unsigned short sector_byte_num;	//每扇区字节数
	unsigned char  cu_sector_num;	//每簇扇区数
	unsigned short DBR_FAT_sector;	//保留扇区数(DBR-FAT1之间的扇区数)
	unsigned char  FAT_num;			//FAT表的数目
	unsigned short cd_sector_num;	//每磁道(柱面)扇区数
	unsigned short head_num;		//磁头数
	unsigned int   MBR_size;		//当前分区之前的隐藏扇区数(MBR的大小)
	unsigned int   FAT_size;		//每个FAT表占的扇区数
	unsigned char  start_cu_num;	//根目录的起始簇号
	
};