public override void Assemble()
{
MachineCode mc = new MachineCode();
string line;
int previousIndex = 0;
while ((line = _codeReader.ReadLine()) != null)
{
if (_sicxeCommentRegExp.IsMatch(line)) continue;
else if (_sicxeStatementRegExp.IsMatch(line))
{
Match m = _sicxeStatementRegExp.Match(line);
List<string> arguments = new List<string>();
if (m.Groups[3].Success) arguments.Add(m.Groups[3].Value);
if (m.Groups[4].Success)
{
foreach (Capture g in m.Groups[4].Captures)
{
arguments.Add(g.Value);
}
}
_code.Add(
StatementTypeTable[
((m.Groups[2].Value[0] == '+') ? m.Groups[2].Value.Substring(1) : m.Groups[2].Value)
].Create(m.Groups[1].Value, m.Groups[2].Value, arguments));
_code[_code.Count - 1].OnePass(this);
Console.WriteLine(_code[_code.Count - 1].ToString());
}
else
{
throw new Error("The line:" + line + " is wrong. Please check it.");
}
}
}
private void SecondPass()
{
MachineCode mc = new MachineCode();
int previousIndex = 0;
for(int i = 0 ; i < _code.Count ; i++)
{
_code[i].SecondPass(this);
if (_code[i].Relocation != null && _code[i].Relocation.Count >= 1 )
{
mc.MRecord.AddRange(_code[i].Relocation);
}
if (_code[i].Code != null && _code[i].Code[0] != "")
{
if (_code[i].Code[0][0] == 'H' || _code[i].Code[0][0] == 'E' ||
_code[i].Code[0][0] == 'D' || _code[i].Code[0][0] == 'R' )
{
if (_previousOutputAddress != NoAddress)
{
mc.TRecord[mc.TRecord.Count - 1] += string.Format("{0:X}", _code[i - 1].Location - _previousOutputAddress + _code[i - 1].Length).PadLeft(2, '0');
for (int j = previousIndex; j < i; j++)
{
mc.TRecord[mc.TRecord.Count - 1] += _code[j].Code[0];
}
_previousOutputAddress = NoAddress;
}
if (_code[i].Code[0][0] == 'H')
{
mc.HRecord = _code[i].Code[0];
}
else if (_code[i].Code[0][0] == 'E')
{
mc.ERecord = _code[i].Code[0];
}
else if (_code[i].Code[0][0] == 'D')
{
mc.DRecord = _code[i].Code[0];
}
else if (_code[i].Code[0][0] == 'R')
{
mc.RRecord = _code[i].Code[0];
}
}
else
{
_code[i].Code[0] = _code[i].Code[0].Substring(1);
if (_previousOutputAddress == NoAddress)
{
mc.TRecord.Add("");
_previousOutputAddress = _code[i].Location;
mc.TRecord[mc.TRecord.Count-1] += string.Format("T{0}", string.Format("{0:X}", _previousOutputAddress).PadLeft(6, '0'));
previousIndex = i;
}
else if ((_code[i-1].Location - _previousOutputAddress + _code[i-1].Length) + _code[i].Length >= 0x20 ||
_code[previousIndex].BlockLocation != _code[i].BlockLocation)
{
mc.TRecord[mc.TRecord.Count-1] += string.Format("{0:X}", _code[i-1].Location - _previousOutputAddress + _code[i-1].Length).PadLeft(2, '0');
for (int j = previousIndex; j < i; j++)
{
mc.TRecord[mc.TRecord.Count-1] += _code[j].Code[0];
}
mc.TRecord.Add("");
_previousOutputAddress = _code[i].Location;
mc.TRecord[mc.TRecord.Count-1] += string.Format("T{0}", string.Format("{0:X}", _previousOutputAddress).PadLeft(6, '0'));
previousIndex = i;
}
}
}
else
{
if (_code[i].Length > 0 || _code[previousIndex].BlockLocation != _code[i].BlockLocation)
{
if (_previousOutputAddress != NoAddress)
{
mc.TRecord[mc.TRecord.Count - 1] += string.Format("{0}", string.Format("{0:X}", _code[i - 1].Location - _previousOutputAddress + _code[i - 1].Length).PadLeft(2, '0'));
for (int j = previousIndex; j < i; j++)
{
mc.TRecord[mc.TRecord.Count - 1] += _code[j].Code[0];
}
_previousOutputAddress = NoAddress;
}
}
}
}
mc.Write(_codeWriter);
}
