/// <summary>
/// ヘッダを読み込む
/// </summary>
void ReadHeader(FileStream fs)
{
byte[] header = new byte[0x2b0];
fs.Read(header, 0, header.Length);
var dc = new DataController(header);
this.DiskName = TextEncoding.GetString(dc.Copy(0, 17)).TrimEnd((Char)0);
IsWriteProtect = dc.GetByte(0x1a) != 0x00;
var t = dc.GetByte(0x1b);
DiskType.SetImageTypeFromHeader(t);
ImageSize = (long)dc.GetLong(0x1c);
CurrentHeaderSize = 0;
for (var i = 0; i < MaxTrack; i++)
{
var a = (long)dc.GetLong(0x20 + (i * 4));
TrackAddress[i] = a;
if (i == 0)
{
CurrentHeaderSize = a;
}
}
}
public void SetEntryFromSector(DataController dc, int sector, int pos, string Name, string Extension)
{
this.Name = Name;
this.Extension = Extension;
EntrySector = sector;
EntryPosition = pos;
FileMode = dc.GetByte(pos);
Password = dc.GetByte(pos + 0x11);
Size = dc.GetWord(pos + 0x12);
LoadAddress = dc.GetWord(pos + 0x14);
ExecuteAddress = dc.GetWord(pos + 0x16);
DateTimeData = dc.Copy(pos + 0x18, 6);
StartCluster = dc.GetByte(pos + 0x1e);
StartCluster |= dc.GetByte(pos + 0x1f) << 7;
}
private bool ReadSectorHeader(FileStream fs)
{
Header = new byte[0x10];
int s = fs.Read(Header, 0, 0x10);
if (s < 0x10)
{
return(false);
}
var dc = new DataController(Header);
Track = dc.GetByte(0);
Side = dc.GetByte(1);
Sector = dc.GetByte(2);
NumOfSector = dc.GetByte(3);
SectorsInTrack = dc.GetWord(4);
Density = dc.GetByte(6);
IsDelete = dc.GetByte(7) != 0x00;
Status = dc.GetByte(8);
DataSize = dc.GetWord(0x0e);
return(true);
}