public Parser(Scanner scanner, CodeGen codegen, SymbolTable symtab, ProgramOptions options,
System.IO.StreamWriter listingWriter)
{
this.scanner = scanner;
this.codegen = codegen;
this.symtab = symtab;
this.genlist = options.enableListing;
this.listwriter = listingWriter;
labelList_ID = new List<Symbol>();
labelList_UD = new List<Symbol>();
}
public Assembler(ProgramOptions options)
{
genlist = options.enableListing;
outname = options.outputName;
if (genlist)
{
listwriter = new System.IO.StreamWriter(new System.IO.MemoryStream());
}
scanner = new Scanner();
symtab = new SymbolTable(scanner);
codegen = new CodeGen(scanner, symtab, options, listwriter);
parser = new Parser(scanner, codegen, symtab, options, listwriter);
}
static void Do(string[] args)
{
string fname;
Assembler assembler;
ProgramOptions opts = new ProgramOptions();
DissectInput(args);
#if DEBUG
//PrintDissectedInput();
#endif
if (hasErrors) return;
ParseInput(opts);
if (hasErrors) return;
foreach (Argument a in arglist)
{
if (a.type == ArgType.String)
{
fname = a.str;
if (!System.IO.File.Exists(fname))
{
PrintError("FATAL: File '" + fname + "' does not exist");
return;
}
assembler = new Assembler(opts);
assembler.AssembleUnit(fname);
}
}
}
static void ParseInput(ProgramOptions options)
{
int fncount;
fncount = 0;
foreach (Argument a in arglist)
{
if (a.type == ArgType.Option)
{
switch (a.str)
{
case "o":
if (a.param == null)
{
PrintError("Output filename expected");
return;
}
options.outputName = a.param;
break;
case "f":
switch (a.param)
{
case "bin":
options.outtype = OutputType.Raw; break;
case "txt":
options.outtype = OutputType.Text; break;
case "hex":
options.outtype = OutputType.Hex; break;
case "elf":
options.outtype = OutputType.Elf; break;
case null:
PrintError("Output format expected");
return;
default:
PrintError("Unknown output format: '" + a.param + "'");
return;
}
break;
case "l":
options.enableListing = true;
break;
case "nogp":
options.useGPbased = false;
break;
case "noat":
options.useAT = false;
break;
default:
PrintError("Unknown option: '" + a.str + "'");
return;
}
}
else if (a.type == ArgType.String)
{
++fncount;
}
}
if (fncount == 0)
{
PrintError("No input files specified");
}
else if (fncount > 1 && options.outputName != null)
{
PrintError("Output filename can't be specified if there are multiple input files");
}
}