/// <summary>
/// Exit a parse tree produced by the <c>DirectivaFin</c>
/// labeled alternative in <see cref="SicAsmParser.end"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitDirectivaFin([NotNull] SicAsmParser.DirectivaFinContext context)
{
}
public override string VisitDirectivaFin([NotNull] SicAsmParser.DirectivaFinContext context)
{
string label = "----";
string id;
if (context.LABEL(0) != null)
{
label = "Label = " + context.LABEL(0).GetText() + " START addr = ";
}
int addr_value = 0;
if (context.num_type != null)
{
if (context.num_type.Type == SicAsmParser.LABEL)
{
if (context.LABEL().Length == 2)
{
id = context.LABEL(1).GetText();
}
else
{
label = "----";
id = context.LABEL(0).GetText();
}
// Si la etiqueta existe en la tabla de simbolos, obtiene su dirección.
if (_symtab.ContainsKey(id))
{
addr_value = (int)_symtab[id];
}
else // si no existe en la tabla de simbolos, la dirección es -1.
{
addr_value = MAX_ADDR;
}
}
else
if (context.num_type.Type == SicAsmParser.INT)
{
id = context.INT().GetText();
addr_value = int.Parse(id);
}
else
{
id = context.HEX().GetText().Remove(context.HEX().GetText().Length - 1);
addr_value = int.Parse(id, System.Globalization.NumberStyles.HexNumber);
}
_first_inst_addr = addr_value;
}
if (addr_value > MAX_ADDR)
{
return("Error, dirección fuera de rango, debe ser menor a 0x7FFF");
}
/* Si es la primera pasada */
if (_is_first_pass)
{
_lines_pc.Add(_line_count + 1, _program_counter);
_prog_size = _program_counter - _prog_size;
}
else /* Si es la segunda pasada agrega el registro E al programa objeto */
{
_lines_opcode.Add(_line_count + 1, "------");
}
return(label + addr_value);
}
/// <summary>
/// Visit a parse tree produced by the <c>DirectivaFin</c>
/// labeled alternative in <see cref="SicAsmParser.end"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitDirectivaFin([NotNull] SicAsmParser.DirectivaFinContext context)
{
return(VisitChildren(context));
}