private bool PreprocessRows()
{
Z80Preprocessor preprocessor = new Z80Preprocessor(m_ProgramText, IncludeDirectories, m_FileName);
if (!preprocessor.Preprocess())
{
m_StatusMessage.AppendLine(preprocessor.StatusMessage);
WrongLineNumber = preprocessor.WrongLineNumber;
return(false);
}
InterPretedAssemblyRows.AddRange(preprocessor.PreprocessedProgramLines);
m_SkippedLineNumbers.AddRange(preprocessor.SkippedLineNumbers);
return(true);
}
private bool BuildAssemblyRows()
{
do
{
foreach (AssemblyRow row in InterPretedAssemblyRows)
{
switch (row.Instruction.Type)
{
case InstructionType.AssemblerInstruction:
{
if (!ResolveAssemblerInstruction(row))
{
return(false);
}
}
break;
case InstructionType.ProcessorInstruction:
{
if (!BuildProcessorInstruction(row))
{
return(false);
}
}
break;
}
if (!string.IsNullOrEmpty(row.Label))
{
Symbol addressSymbol = AssembledProgram.SymbolTable.FirstOrDefault(s => s.Key == row.Label && s.Value.Type == SymbolType.Address).Value;
if (addressSymbol != null && addressSymbol.State == SymbolState.Unresolved)
{
addressSymbol.Value = AssembledProgram.SymbolTable[AssemblerConstans.LocationCounterSymbol].Value;
}
}
if (row.InstructionBytes.Count > 0)
{
row.Address = AssembledProgram.SymbolTable[AssemblerConstans.LocationCounterSymbol].Value;
ushort newLocationCounter = AssembledProgram.SymbolTable[AssemblerConstans.LocationCounterSymbol].Value;
newLocationCounter += (ushort)row.InstructionBytes.Count;
AssembledProgram.SymbolTable[AssemblerConstans.LocationCounterSymbol].Value = newLocationCounter;
}
}
// The program is not closed with the 'END' assembler instruction, in this case the last row is handled as latest
if (m_CurrentProgramSection != null)
{
m_CurrentProgramSection.SectionLength =
(ushort)(AssembledProgram.SymbolTable[AssemblerConstans.LocationCounterSymbol].Value - m_CurrentProgramSection.ProgramStartAddress);
AssembledProgram.ProgramSections.Add(m_CurrentProgramSection);
m_CurrentProgramSection = null;
}
} while (InterPretedAssemblyRows.Any(row => row.State == AssemblyRowState.ContainsFutureSymbol));
if (AssembledProgram.ProgramSections.Count == 0)
{
m_StatusMessage.AppendLine(@"A program nem tartalmaz 'ORG' utasítást!");
WrongLineNumber = 1;
return(false);
}
return(true);
}
