public static TD0_SECTOR Deserialize(Stream stream)
{
var sector = new TD0_SECTOR();
// C,H,R,N,Flags,hdrcrc low,hdrcrc high
var adm = new byte[6];
stream.Read(adm, 0, 6);
sector._admark = adm;
// data size low, data size high, encoding method, rawdata,...
var datahdr = new byte[2];
stream.Read(datahdr, 0, 2);
var rawdata = new byte[getUInt16(datahdr, 0)];
stream.Read(rawdata, 0, rawdata.Length);
sector._data = unpackData(rawdata);
var crc = CrcTd0.Calculate(sector._data, 0, sector._data.Length);
if (adm[5] != (crc & 0xFF))
{
Logger.Warn(
"TD0 loader: Sector data had bad CRC=0x{0:X4} (stamp crc=0x{1:X2}) [C:{2:X2};H:{3:X2};R:{4:X2};N:{5:X2}",
crc,
adm[5],
sector.C,
sector.H,
sector.R,
sector.N);
Locator.Resolve <IUserMessage>()
.Warning("TD0 loader\n\nSector data had bad CRC");
}
sector.SetAdCrc(true);
sector.SetDataCrc((sector.Td0Flags & SectorFlags.BadCrc) == 0);
return(sector);
}
public static TD0_TRACK Deserialize(Stream stream)
{
var hdr = new TD0_TRACK();
stream.Read(hdr._rawData, 0, 4);
if (hdr._rawData[0] != 0xFF) // 0xFF - terminator
{
var crc = CrcTd0.Calculate(hdr._rawData, 0, 3);
if (hdr._rawData[3] != (crc & 0xFF))
{
Logger.Warn("TD0 loader: Track header had bad CRC=0x" + crc.ToString("X4") + " (stamp crc=0x" + hdr._rawData[3].ToString("X2") + ") [CYL:0x" + hdr._rawData[1].ToString("X2") + ";SIDE:" + hdr._rawData[2].ToString("X2"));
Locator.Resolve <IUserMessage>()
.Warning("TD0 loader\n\nTrack header had bad CRC");
}
var sectors = new List <Sector>(hdr.SectorCount);
for (int s = 0; s < hdr.SectorCount; s++)
{
hdr._sectorList.Add(TD0_SECTOR.Deserialize(stream));
}
}
return(hdr);
}
public static TD0_SECTOR Deserialize(Stream stream)
{
TD0_SECTOR sector = new TD0_SECTOR();
// C,H,R,N,Flags,hdrcrc low,hdrcrc high
byte[] adm = new byte[6];
stream.Read(adm, 0, 6);
sector._admark = adm;
// data size low, data size high, encoding method, rawdata,...
byte[] datahdr = new byte[2];
stream.Read(datahdr, 0, 2);
byte[] rawdata = new byte[getUInt16(datahdr, 0)];
stream.Read(rawdata, 0, rawdata.Length);
sector._data = unpackData(rawdata);
ushort crc = CalculateTD0CRC(sector._data, 0, sector._data.Length);
if (adm[5] != (crc & 0xFF))
{
LogAgent.Warn(
"TD0 loader: Sector data had bad CRC=0x{0:X4} (stamp crc=0x{1:X2}) [C:{2:X2};H:{3:X2};R:{4:X2};N:{5:X2}",
crc,
adm[5],
sector.C,
sector.H,
sector.R,
sector.N);
DialogProvider.Show(
"Sector data had bad CRC",
"TD0 loader",
DlgButtonSet.OK,
DlgIcon.Warning);
}
sector.SetAdCrc(true);
sector.SetDataCrc((sector.Td0Flags & SectorFlags.BadCrc) == 0);
return sector;
}
