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# http://www.hdfgroup.org/HDF5/doc/H5.format.html#Superblock
constant identifier="HDF5";
ascii[8] signature : dump;
uint8 versionNumberOfSuperblock : dump;
if (versionNumberOfSuperblock == 0 || versionNumberOfSuperblock == 1)
{
uint8 versionNumOfFilesFreeSpaceStorage : dump;
uint8 versionNumOfRootGroupSymbolTableEntry : dump;
uint8 reserved1;
uint8 versionNumOfSharedHeaderMessageFormat: dump;
uint8 sizeOfOffsets : dump;
uint8 sizeOfLength : dump;
uint8 reserved2;
#uint32_little_endian groupLeafAndInternalNodeK : dump;
#uint32_little_endian fileConsistencyFlags : dump;
#unsigned[4] groupLeafAndInternalNodeK : dump;
unsigned[2] groupLeafNodeK : dump;
unsigned[2] groupInternalNodeK : dump;
unsigned[4] fileConsistencyFlags : dump;
if (versionNumberOfSuperblock == 1) {
uint16 indexedStorageInternalNodeK : dump;
uint16 reserved3;
}
if(sizeOfOffsets == 8) {
uint64_little_endian baseAddress : dump;
uint64_little_endian addressOfFileFreeSpaceInfo : dump;
uint64_little_endian endOfFileAddress : dump;
uint64_little_endian driverInformationBlockAddress : dump;
uint64_little_endian rootGroupSymbolTableEntry: dump;
}
if(sizeOfOffsets == 4) {
uint32_little_endian baseAddress : dump;
uint32_little_endian addressOfFileFreeSpaceInfo : dump;
uint32_little_endian endOfFileAddress : dump;
uint32_little_endian driverInformationBlockAddress : dump;
uint32_little_endian rootGroupSymbolTableEntry: dump;
}
}
if (versionNumberOfSuperblock == 2 || versionNumberOfSuperblock == 3)
{
uint8 sizeOfOffsets : dump;
uint8 sizeOfLength : dump;
uint8 fileConsistencyFlags : dump;
if(sizeOfOffsets == 8) {
uint64_little_endian baseAddress : dump;
uint64_little_endian superblockExtensionAddress : dump;
uint64_little_endian endOfFileAddress : dump;
uint64_little_endian rootGroupObjectHeaderAddress : dump;
}
if(sizeOfOffsets == 4) {
uint32_little_endian baseAddress : dump;
uint32_little_endian superblockExtensionAddress : dump;
uint32_little_endian endOfFileAddress : dump;
uint32_little_endian rootGroupObjectHeaderAddress : dump;
}
#ascii[4] superblockChecksum;
}
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