45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
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#include "drive.hxx"
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#include "bpb.hxx"
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#define MAXIMUM_VOLUME_LABEL_LENGTH (32 * sizeof(WCHAR))
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extern "C" {
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#include "lfs.h"
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#include "ofsdisk.h"
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};
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typedef struct _DSKBPB
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{
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USHORT BytesPerSector;
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UCHAR SectorsPerCluster;
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USHORT ReservedSectors;
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UCHAR Fats;
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USHORT RootEntries;
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USHORT Sectors16;
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UCHAR Media;
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USHORT SectorsPerFat;
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USHORT SectorsPerTrack;
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USHORT Heads;
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ULONG HiddenSectors;
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ULONG Sectors32;
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} DSKBPB;
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//
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// This macro takes a Packed BPB and fills in its Unpacked equivalent
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//
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#define UnpackOfsBios(Bios,Pbios) { \
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CopyUchar2(&((Bios)->BytesPerSector), (Pbios)->BytesPerSector ); \
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CopyUchar1(&((Bios)->SectorsPerCluster), (Pbios)->SectorsPerCluster); \
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CopyUchar2(&((Bios)->ReservedSectors), (Pbios)->ReservedSectors ); \
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CopyUchar1(&((Bios)->Fats), (Pbios)->Fats ); \
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CopyUchar2(&((Bios)->RootEntries), (Pbios)->RootEntries ); \
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CopyUchar2(&((Bios)->Sectors16), (Pbios)->Sectors16 ); \
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CopyUchar1(&((Bios)->Media), (Pbios)->Media ); \
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CopyUchar2(&((Bios)->SectorsPerFat), (Pbios)->SectorsPerFat ); \
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CopyUchar2(&((Bios)->SectorsPerTrack), (Pbios)->SectorsPerTrack ); \
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CopyUchar2(&((Bios)->Heads), (Pbios)->Heads ); \
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CopyUchar4(&((Bios)->HiddenSectors), (Pbios)->HiddenSectors ); \
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CopyUchar4(&((Bios)->Sectors32), (Pbios)->Sectors32 ); \
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}
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