mirror of https://github.com/fadden/6502bench.git
91 lines
3.3 KiB
C#
91 lines
3.3 KiB
C#
/*
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* Copyright 2019 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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namespace SourceGen {
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/// <summary>
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/// Label file generator.
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/// </summary>
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public class LabelFileGenerator {
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public enum LabelFmt {
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Unknown = 0,
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VICE,
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}
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private DisasmProject mProject;
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private LabelFmt mFormat;
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private bool mIncludeAutoLabels;
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public LabelFileGenerator(DisasmProject project, LabelFmt format, bool includeAutoLabels) {
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mProject = project;
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mFormat = format;
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mIncludeAutoLabels = includeAutoLabels;
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}
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public void Generate(StreamWriter outStream) {
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List<Symbol> symList = new List<Symbol>();
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foreach (Symbol sym in mProject.SymbolTable) {
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bool include;
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switch (sym.SymbolSource) {
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case Symbol.Source.User:
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case Symbol.Source.AddrPreLabel:
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include = true;
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break;
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case Symbol.Source.Auto:
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include = mIncludeAutoLabels;
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break;
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case Symbol.Source.Project:
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case Symbol.Source.Platform:
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case Symbol.Source.Variable:
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default:
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include = false;
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break;
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}
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if (include) {
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symList.Add(sym);
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}
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}
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// Sort alphabetically. Not necessary, but it could make a "diff" easier to read.
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symList.Sort((a, b) => Symbol.Compare(Symbol.SymbolSortField.Name, true, a, b));
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Debug.Assert(mFormat == LabelFmt.VICE);
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// VICE format is "add_label <address> <label>", but may be abbreviated "al".
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// We could also use ACME format ("labelname = $1234 ; Maybe a comment").
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foreach (Symbol sym in symList) {
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// VICE only keeps one copy of each label, so local labels need to include the
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// uniquifier. The UNIQUE_TAG_CHAR may not be accepted, so replace it with '_'.
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string label = sym.Label;
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label = label.Replace(Symbol.UNIQUE_TAG_CHAR, '_');
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if (sym.IsNonUnique) {
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// Add the cc65 prefix convention for local labels.
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label = '@' + label;
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}
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// The cc65 docs (https://www.cc65.org/doc/debugging-4.html) say all labels
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// must be prefaced with '.'. VICE rejects labels that start with a letter.
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label = '.' + label;
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outStream.WriteLine("al " + sym.Value.ToString("x6") + " " + label);
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}
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}
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}
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}
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