Archipelago » qemu

/*

   Copyright (C) Matthew Chapman 2003

   This program is free software; you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 2 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program; if not, write to the Free Software

   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#define SECTOR_BITS        9

#define SECTOR_SIZE        (1 << SECTOR_BITS)

#define SECTOR_MASK        (SECTOR_SIZE - 1)

#define L1_BITS                (SECTOR_BITS - 3)

#define L1_SIZE                (1 << L1_BITS)

#define L1_MASK                (L1_SIZE - 1)

#define L2_BITS                SECTOR_BITS

#define L2_SIZE                (1 << L2_BITS)

#define L2_MASK                (L2_SIZE - 1)

#define MIN(x,y)        (((x) < (y)) ? (x) : (y))

struct cowdisk_header

{

    char magic[4]; /* COWD */

    uint32_t version;

    uint32_t flags;

    uint32_t disk_sectors;

    uint32_t granularity;

    uint32_t l1dir_sector;

    uint32_t l1dir_size;

    uint32_t file_sectors;

    uint32_t cylinders;

    uint32_t heads;

    uint32_t sectors_per_track;

};

struct cowdisk_header2

{

   uint32_t parent_ts;

   uint32_t timestamp;

};