/// <summary>
/// Loads the program from file image
/// </summary>
/// <param name="file"></param>
public void Load(byte[] file)
{
StartPtr = Convert.ToUInt16(file[0] + 256 * file[1]);
for (int j = 1; j < file.Length;)
{
// gets pointer to next line: if 0 exit
UInt16 ptr = Convert.ToUInt16(file[++j] + 256 * file[++j]);
if (0 == ptr)
{
break;
}
// gets line number
UInt16 linenum = Convert.ToUInt16(file[++j] + 256 * file[++j]);
// scan for EOL
int start = j + 1;
while (file[++j] != 0)
{
}
byte[] data = new byte[j - start];
Array.Copy(file, start, data, 0, j - start);
BasicRow row = new BasicRow(ptr, linenum, data);
Lines.Add(row);
}
}
/// <summary>
/// Adds a new row of code (or replaces existing)
/// </summary>
/// <param name="LineNum"></param>
/// <param name="rawdata"></param>
public void AddLine(UInt16 LineNum, byte[] rawdata)
{
BasicRow r = GetLine(LineNum);
if (r != null)
{
Lines.Remove(r);
}
r = new BasicRow(0, LineNum, rawdata);
Lines.Add(r);
}
/// <summary>
/// Deletes line by number
/// </summary>
/// <param name="LineNum"></param>
/// <returns>true if line deleted, false if not found</returns>
public bool DeleteLine(UInt16 LineNum)
{
BasicRow r = GetLine(LineNum);
if (r != null)
{
Lines.Remove(r);
return(true);
}
else
{
return(false);
}
}