gformat.h

关于操作系统中存储管理的一个程序

#ifndef XM_FORMAT_H
#define XM_FORMAT_H
typedef struct Part_Entrytag{
	char part_flag;
	char beginning_head;
	char beginning_sector;
	char beginning_cylinder;
	char file_system;
	char ending_head;
	char ending_sector;
	long first_sector;
	long sector_count;
}Part_Entry;

typedef struct BootSectortag{
	unsigned loader[120];
	unsigned reserved1[103];
	Part_Entry part[4];
	unsigned end_flag;
}BootSector;

typedef struct BPBtag{
	unsigned bytes_per_sector;
	char  sectors_per_cluster;
	unsigned number_of_reserved_sectors;
	char number_of_FATs;
	unsigned maximum_number_of_root_entries;
	unsigned total_number_of_sectors;
	char media_descriptor;
	unsigned sectors_per_FAT;
	unsigned sectors_per_track;
	unsigned number_of_heads;
	long  number_of_hidden_sectors;
}BPB;

typedef struct DOSBootSectorstag{
	char jmp_instruction[3];
	char oem_name[8];
	BPB  bpb;
	long huge_sectors;
	char drive_no;
	char reserved;
	char boot_signature;
	long volume_id;
	char volume_label[11];
	char file_system_type[8];
	char loader[450];
}DOSBootSector;

typedef struct FAT16tag{
	unsigned item[256];
}FAT16;

typedef struct DirEntrytag{
	char filename[8];
	char extension[3];
	char fileattributes;
	char reserved[10];
	unsigned date_stamp;
	unsigned time_stamp;
	unsigned starting_cluster;
	long file_size;
}DirEntry;

typedef struct Format_Idtag{
	char cylinder;
	char head;
	char sector;
	char sectorlength;
}Format_Id;
/*
typedef struct FDPBtag{
       char step_speed;
	   char loade_time;
	   char wait_time;
	   char bytes_per_sector;
	   char sectors_per_track;
	   char number_of_dis_sectors;
	   char bytes_per_sector2;
	   char number_of_fmt_dis_sectors;
	   char fill_bytes;
	   char wait_time2;
	   char wait_time3;
}FDPB;

typedef struct FBootSectortag{
        char jmp_instructon[3];
		char oem_name[8];
		BPB  bpb;
		char reserved;
		FDPB fdpb;
		char loader[486];
}FBootSector;

*/

#endif