Structure declaration for a certain game image.

imgfile.h

#pragma once

#define IMG_OPEN_NEW        1
#define IMG_OPEN_READ       2
#define IMG_OPEN_WRITE      3

#define IMG_KEYIV_SIZE          0x20
#define IMG_SIGNATURE_SIZE      0x200
#define IMG_BLOCK_SIZE          0x1000
#define IMG_BOOT_INFO_SIZE      0x2800
#define IMG_DICTIONARY_OFFSET   0x2A00
#define IMG_SEGMENT_SIZE        0x40000
#define IMG_DATA_OFFSET         0x200000

typedef struct BuildDate {
    UINT16      year;
    BYTE        month;
    BYTE        day;
    BYTE        hour;
    BYTE        minute;
    BYTE        second;
    BYTE        millisecond;
} BUILDDATE, * PBUILDDATE;

typedef struct BuildVer {
    BYTE        build;
    BYTE        minor;
    UINT16      major;
} BUILDVER, * PBUILDVER;

typedef struct BootSector {
    // HEADER
    UINT32      checksum;       // CRC-32
    UINT32      sectorSize;     // 0x2800
    CHAR        magic[4];       // BTID
    BYTE        padding1;       // ???
    BYTE        imageType;      // 0 = PACK , 1 = APP , 2 = OPT
    BYTE        imagePart;      // 0 1 2 3 ...
    BYTE        padding2;       // ???
    // IDENTIFICATION
    CHAR        gameId[4];      // SSSS
    BUILDDATE   buildDate;      // Image Build Date
    BUILDVER    buildVer;       // Image Build Version
    // SEGMENT INFORMATION
    UINT64      segCount;       // Total Count
    UINT64      segSize;        // Segment Size
    // SEGMENT INFORMATION
    UINT64      segHeader;      // Header Count
    UINT64      segPadding;     // ???
    // SYSTEM INFORMATION
    CHAR        platformId[4];  // AAV (null terminated)
    BUILDDATE   reqBuildDate;   // Required APP date , optional
    BUILDVER    reqBuildVer;    // Required APP version , optional
    // SYSTEM INFORMATION
    BUILDVER    reqSystemVer;   // Required System , optional
    UINT32      padding1[3];    // ???
    // UNKNOWN PADDING
    CHAR        padding3[0x3A0];    // ???
    // STRINGS ( optional )
    CHAR        string1[8][0x80];   // APPLICATION NAME
    CHAR        string2[8][0x80];   // CREDIT(S) TO START
    CHAR        string3[8][0x80];   // CREDIT(S) TO CONTINUE
    CHAR        string4[8][0x80];   // ???
    // UNKNOWN PADDING
    CHAR        padding4[0x1400];   // ???
} BOOTSECT, * PBOOTSECT;