/**
* Create an object file using the given inputs.
*
* @param input Input source from pass 1
* @param symb The symbol table
* @param report an assembly report to be generated
* @refcode OB
* @errtest
* N/A
* @errmsg
* N/A
* @author Jacob Peddicord
* @creation May 10, 2011
* @modlog
* @teststandard Andrew Buelow
* @codestandard Mark Mathis
*/
public ObjectFile(ref IntermediateFile input, ref SymbolTable symb, ref AssemblyReport report)
{
this.input = input;
this.symb = symb;
this.report = report;
}
/**
* Drives the Assembler.
*
* @param args program runtime arguments
*
* @refcode N/A
* @errtest
* Differing program arguments.
* @errmsg
* - Incorrect number of arguments.
* - Usage information
* @author Mark
* @creation April 5, 2011
* @modlog
* - April 6, 2011 - Mark - Initializes Logger.
* - April 8, 2011 - Mark - Reads files in from the command line.
* - April 8, 2011 - Mark - Initializes and uses a Parser object.
* - April 8, 2011 - Mark - Outputs results to screen.
* - April 9, 2011 - Mark - Uses an IntermediateFile object.
* - April 9, 2011 - Mark - Catches problem with improper number of arguments.
* - April 10, 2011 - Mark - Uses a SymbolTable object.
* - May 8, 2011 - Jacob - Only process one file.
* @teststandard Andrew Buelow
* @codestandard Mark Mathis
*/
public static void Main(string[] args)
{
string infile = null;
string outfile = null;
// single arg given, output to stdout
if (args.Length == 1)
{
infile = args[0];
outfile = System.IO.Path.GetFileNameWithoutExtension(args[0]) + ".obj";
}
// two args given, read in the first and output to the second
else if (args.Length == 2)
{
infile = args[0];
outfile = args[1];
}
// invalid; print usage
else
{
Usage();
System.Environment.Exit(1);
}
Errors.SetResource(Properties.Resources.errors);
// pass 1
Logger.Log("Starting up", "Main");
SymbolTable symb = new SymbolTable();
Parser pars = new Parser();
IntermediateFile interSource;
pars.ParseSource(infile, out interSource, out symb);
bool fatalerr = false;
AssemblyReport report = new AssemblyReport();
// Checking for fatal errors and creating an Assembly Report to display if a fatal error is found.
foreach (IntermediateLine line in interSource)
{
if (line.Fatal)
{
fatalerr = true;
}
report.Add(line.ProgramCounter, "0000", ' ', line.SourceLineNumber, line.SourceLine, line.GetThreeErrors());
}
if (fatalerr)
{
// Output the report
Console.WriteLine(report);
// and symbol table
Console.WriteLine(symb);
// Stop the assembler
System.Environment.Exit(10);
}
#if DEBUG
Console.WriteLine(interSource);
#endif
// pass 2
Logger.Log("Starting pass 2", "Main");
interSource.CalculateModuleLength();
report = new AssemblyReport();
ObjectFile obj = new ObjectFile(ref interSource, ref symb, ref report);
obj.Render(outfile);
// print out assembly report
Console.WriteLine(report);
// and symbol table
Console.WriteLine(symb);
}