private IEnumerator TransferCoroutine(ushort sector, ushort address, TransferOpreration operation)
{
SetErrorOrState(state: StateCode.Busy);
var targetTrack = TrackForSector(sector);
var trackDifference = Math.Abs(targetTrack - _currentTrack);
if (trackDifference != 0)
{
yield return(new WaitForSeconds(trackDifference * TracksPerSecond));
}
if (TransferOkToContinue(sector))
{
_currentTrack = targetTrack;
yield return(new WaitForSeconds(SecondsPerSector));
if (TransferOkToContinue(sector))
{
ushort[] source, destination;
int sourceIndex, destinationIndex;
switch (operation)
{
case TransferOpreration.Read:
source = _disk.GetSector(sector);
sourceIndex = 0;
destination = _dcpu16.Memory;
destinationIndex = address;
break;
case TransferOpreration.Write:
source = _dcpu16.Memory;
sourceIndex = address;
destination = _disk.GetSector(sector);
destinationIndex = 0;
break;
default:
throw new Exception(String.Format("Unexpected operation: {0}.", operation));
}
Array.Copy(source, sourceIndex, destination, destinationIndex, WordsPerSector);
}
}
if (_currentStateCode == StateCode.Busy)
{
SetErrorOrState(state: _disk.IsWriteProtected?StateCode.ReadyWp: StateCode.Ready);
}
yield return(null);
}
private IEnumerator TransferCoroutine(ushort sector, ushort address, TransferOpreration operation)
{
SetErrorOrState(state: StateCode.Busy);
var targetTrack = TrackForSector(sector);
var trackDifference = Math.Abs(targetTrack - _currentTrack);
if (trackDifference != 0)
{
yield return new WaitForSeconds(trackDifference * TracksPerSecond);
}
if (TransferOkToContinue(sector))
{
_currentTrack = targetTrack;
yield return new WaitForSeconds(SecondsPerSector);
if (TransferOkToContinue(sector))
{
ushort[] source, destination;
int sourceIndex, destinationIndex;
switch (operation)
{
case TransferOpreration.Read:
source = _disk.GetSector(sector);
sourceIndex = 0;
destination = _dcpu16.Memory;
destinationIndex = address;
break;
case TransferOpreration.Write:
source = _dcpu16.Memory;
sourceIndex = address;
destination = _disk.GetSector(sector);
destinationIndex = 0;
break;
default:
throw new Exception(String.Format("Unexpected operation: {0}.", operation));
}
Array.Copy(source, sourceIndex, destination, destinationIndex, WordsPerSector);
}
}
if (_currentStateCode == StateCode.Busy)
{
SetErrorOrState(state: _disk.IsWriteProtected ? StateCode.ReadyWp : StateCode.Ready);
}
yield return null;
}