protected override void FillMemorySpace()
{
FileStream tFileStream = null;
if (m_FileAccess == FileAccess.Write)
{
return;
}
else if (m_FileAccess == FileAccess.Read)
{
tFileStream = new FileStream(m_Path, m_FileMode, m_FileAccess, FileShare.Read);
}
else
{
tFileStream = new FileStream(m_Path, m_FileMode, m_FileAccess, FileShare.ReadWrite);
}
using (StreamReader tStreamReader = new StreamReader(tFileStream))
{
String tRecordStr = null;
try
{
Boolean bSeeEOF = true;
UInt32 tAddress = 0;
do
{
tRecordStr = tStreamReader.ReadLine();
if (null != tRecordStr)
{
HEXRecord tRecord = HEXRecord.Parse(tRecordStr);
bSeeEOF = false;
if (null == tRecord)
{
throw new IOException("Illegal Hexadecimal Object File.");
}
switch (tRecord.RecordType)
{
case HEXRecord.Type.DATA_RECORD:
UInt32 tTargetAddress = tAddress + tRecord.LoadOffset;
if (this.Offset < 0)
{
tTargetAddress -= (UInt32)Math.Abs(this.Offset);
}
else
{
tTargetAddress += (UInt32)this.Offset;
}
m_MemorySpace.Write(tTargetAddress, tRecord.Data);
break;
case HEXRecord.Type.END_OF_FILE_RECORD:
bSeeEOF = true;
break;
case HEXRecord.Type.EXTEND_SEGMENT_ADDRESS_RECORD:
tAddress = ((ExtendSegmentAddressRecord)tRecord).ExtendSegmentBaseAddress;
break;
case HEXRecord.Type.EXTEND_LINEAR_ADDRESS_RECORD:
tAddress = ((ExtendLinearAddressRecord)tRecord).UpperLinearBaseAddress;
break;
default:
break;
}
}
else
{
break;
}
}while (!bSeeEOF);
}
catch (Exception Err)
{
throw Err;
}
}
}
//! \brief load memory block from hex file
protected override Boolean LoadMemoryBlockFromTargetFile(UInt32 tTargetAddress, ref Byte[] tData, Int32 tSize)
{
if (m_FileAccess == FileAccess.Write)
{
return(false);
}
else if (null == m_File)
{
return(false);
}
else if (!m_File.CanRead)
{
return(false);
}
VirtualMemorySpace tMemorySpace = new VirtualMemorySpace();
tMemorySpace.SpaceLength = UInt32.MaxValue;
StreamReader tStreamReader = null;
try
{
FileStream tFileStream = null;
if (m_FileAccess == FileAccess.Read)
{
tFileStream = new FileStream(m_Path, m_FileMode, m_FileAccess, FileShare.Read);
}
else
{
tFileStream = new FileStream(m_Path, m_FileMode, m_FileAccess, FileShare.ReadWrite);
}
tStreamReader = new StreamReader(tFileStream);
if (null == tStreamReader)
{
return(false);
}
}
catch (Exception)
{
tStreamReader.Close();
return(false);
}
String tRecordStr = null;
try
{
Boolean bSeeEOF = false;
UInt32 tAddress = 0;
do
{
tRecordStr = tStreamReader.ReadLine();
if (null != tRecordStr)
{
HEXRecord tRecord = HEXRecord.Parse(tRecordStr);
if (null == tRecord)
{
break;
}
switch (tRecord.RecordType)
{
case HEXRecord.Type.DATA_RECORD:
if (
((tRecord.LoadOffset + tAddress) < tTargetAddress) &&
((tRecord.LoadOffset + tAddress + tRecord.Data.Length) <= tTargetAddress)
)
{
continue;
}
else if (
((tRecord.LoadOffset + tAddress) > tTargetAddress) &&
((tTargetAddress + tSize) <= (tRecord.LoadOffset + tAddress))
)
{
break;
}
UInt32 tLoadAddress = tAddress + tRecord.LoadOffset;
if (this.Offset < 0)
{
tLoadAddress -= (UInt32)Math.Abs(this.Offset);
}
else
{
tLoadAddress += (UInt32)this.Offset;
}
tMemorySpace.Write(tLoadAddress, tRecord.Data);
break;
case HEXRecord.Type.END_OF_FILE_RECORD:
bSeeEOF = true;
break;
case HEXRecord.Type.EXTEND_SEGMENT_ADDRESS_RECORD:
tAddress = ((ExtendSegmentAddressRecord)tRecord).ExtendSegmentBaseAddress;
break;
case HEXRecord.Type.EXTEND_LINEAR_ADDRESS_RECORD:
tAddress = ((ExtendLinearAddressRecord)tRecord).UpperLinearBaseAddress;
break;
default:
break;
}
}
}while (!bSeeEOF);
}
catch (Exception)
{
}
finally
{
tStreamReader.Dispose();
}
return(tMemorySpace.Read(tTargetAddress, ref tData, tSize));
}
