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https://github.com/fadden/6502bench.git
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a88c746419
The cc65 assembler runs in a single pass, which means forward address references default to 16 bits. For zero-page references we have to add an explicit width disambiguator. (This is an unusual situation that only occurs if you have a zero-page .ORG in the file after code that references it.) With this change, 2014-label-dp passes, and no other regression tests were affected. (issue #40)
788 lines
33 KiB
C#
788 lines
33 KiB
C#
/*
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* Copyright 2018 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.ComponentModel;
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using System.Diagnostics;
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using System.IO;
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using System.Text;
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using Asm65;
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using CommonUtil;
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namespace SourceGen.AsmGen {
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#region IGenerator
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/// <summary>
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/// Generate source code compatible with Brutal Deluxe's Merlin 32 assembler
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/// (https://www.brutaldeluxe.fr/products/crossdevtools/merlin/).
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/// </summary>
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public class GenMerlin32 : IGenerator {
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private const string ASM_FILE_SUFFIX = "_Merlin32.S"; // must start with underscore
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private const int MAX_OPERAND_LEN = 64;
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// IGenerator
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public DisasmProject Project { get; private set; }
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// IGenerator
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public Formatter SourceFormatter { get; private set; }
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// IGenerator
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public AppSettings Settings { get; private set; }
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// IGenerator
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public AssemblerQuirks Quirks { get; private set; }
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// IGenerator
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public LabelLocalizer Localizer { get { return mLocalizer; } }
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/// <summary>
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/// Working directory, i.e. where we write our output file(s).
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/// </summary>
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private string mWorkDirectory;
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/// <summary>
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/// If set, long labels get their own line.
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/// </summary>
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private bool mLongLabelNewLine;
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/// <summary>
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/// Output column widths.
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/// </summary>
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private int[] mColumnWidths;
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/// <summary>
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/// Base filename. Typically the project file name without the ".dis65" extension.
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/// </summary>
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private string mFileNameBase;
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/// <summary>
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/// StringBuilder to use when composing a line. Held here to reduce allocations.
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/// </summary>
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private StringBuilder mLineBuilder = new StringBuilder(100);
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/// <summary>
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/// Label localization helper.
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/// </summary>
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private LabelLocalizer mLocalizer;
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/// <summary>
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/// Stream to send the output to.
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/// </summary>
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private StreamWriter mOutStream;
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/// <summary>
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/// Holds detected version of configured assembler.
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/// </summary>
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private CommonUtil.Version mAsmVersion = CommonUtil.Version.NO_VERSION;
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// Semi-convenient way to hold all the interesting string constants in one place.
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// Note the actual usage of the pseudo-op may not match what the main app does,
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// e.g. RegWidthDirective behaves differently from "mx". I'm just trying to avoid
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// having string constants scattered all over.
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private static PseudoOp.PseudoOpNames sDataOpNames = new PseudoOp.PseudoOpNames() {
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EquDirective = "equ",
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OrgDirective = "org",
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RegWidthDirective = "mx",
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DefineData1 = "dfb",
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DefineData2 = "dw",
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DefineData3 = "adr",
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DefineData4 = "adrl",
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DefineBigData2 = "ddb",
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//DefineBigData3
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//DefineBigData4
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Fill = "ds",
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Dense = "hex",
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StrGeneric = "asc",
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StrGenericHi = "asc",
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StrReverse = "rev",
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StrReverseHi = "rev",
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//StrNullTerm
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StrLen8 = "str",
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StrLen8Hi = "str",
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StrLen16 = "strl",
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StrLen16Hi = "strl",
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StrDci = "dci",
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StrDciHi = "dci",
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//StrDciReverse
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};
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// IGenerator
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public void GetDefaultDisplayFormat(out PseudoOp.PseudoOpNames pseudoOps,
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out Formatter.FormatConfig formatConfig) {
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// This is not intended to match up with the Merlin generator, which uses
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// the same pseudo-op for low/high ASCII but different string delimiters. We
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// don't change the delimiters for the display list, so instead we tweak the
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// opcode slightly.
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char hiAscii = '\u2191';
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pseudoOps = new PseudoOp.PseudoOpNames() {
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EquDirective = "equ",
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OrgDirective = "org",
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DefineData1 = "dfb",
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DefineData2 = "dw",
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DefineData3 = "adr",
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DefineData4 = "adrl",
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DefineBigData2 = "ddb",
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Fill = "ds",
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Dense = "hex",
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StrGeneric = "asc",
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StrGenericHi = "asc" + hiAscii,
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StrReverse = "rev",
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StrReverseHi = "rev" + hiAscii,
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StrLen8 = "str",
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StrLen8Hi = "str" + hiAscii,
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StrLen16 = "strl",
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StrLen16Hi = "strl" + hiAscii,
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StrDci = "dci",
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StrDciHi = "dci" + hiAscii,
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};
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formatConfig = new Formatter.FormatConfig();
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SetFormatConfigValues(ref formatConfig);
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}
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// IGenerator
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public void Configure(DisasmProject project, string workDirectory, string fileNameBase,
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AssemblerVersion asmVersion, AppSettings settings) {
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Debug.Assert(project != null);
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Debug.Assert(!string.IsNullOrEmpty(workDirectory));
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Debug.Assert(!string.IsNullOrEmpty(fileNameBase));
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Project = project;
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Quirks = new AssemblerQuirks();
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Quirks.TracksSepRepNotEmu = true;
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Quirks.NoPcRelBankWrap = true;
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mWorkDirectory = workDirectory;
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mFileNameBase = fileNameBase;
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Settings = settings;
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mLongLabelNewLine = Settings.GetBool(AppSettings.SRCGEN_LONG_LABEL_NEW_LINE, false);
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AssemblerConfig config = AssemblerConfig.GetConfig(settings,
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AssemblerInfo.Id.Merlin32);
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mColumnWidths = (int[])config.ColumnWidths.Clone();
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}
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/// <summary>
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/// Configures the assembler-specific format items.
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/// </summary>
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private void SetFormatConfigValues(ref Formatter.FormatConfig config) {
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config.mForceAbsOpcodeSuffix = ":";
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config.mForceLongOpcodeSuffix = "l";
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config.mForceDirectOperandPrefix = string.Empty;
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config.mForceAbsOperandPrefix = string.Empty;
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config.mForceLongOperandPrefix = string.Empty;
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config.mEndOfLineCommentDelimiter = ";";
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config.mFullLineCommentDelimiterBase = ";";
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config.mBoxLineCommentDelimiter = string.Empty;
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config.mAllowHighAsciiCharConst = true;
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config.mExpressionMode = Formatter.FormatConfig.ExpressionMode.Merlin;
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}
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// IGenerator; executes on background thread
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public List<string> GenerateSource(BackgroundWorker worker) {
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List<string> pathNames = new List<string>(1);
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string fileName = mFileNameBase + ASM_FILE_SUFFIX;
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string pathName = Path.Combine(mWorkDirectory, fileName);
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pathNames.Add(pathName);
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Formatter.FormatConfig config = new Formatter.FormatConfig();
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GenCommon.ConfigureFormatterFromSettings(Settings, ref config);
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SetFormatConfigValues(ref config);
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SourceFormatter = new Formatter(config);
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string msg = string.Format(Properties.Resources.PROGRESS_GENERATING_FMT, pathName);
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worker.ReportProgress(0, msg);
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mLocalizer = new LabelLocalizer(Project);
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if (!Settings.GetBool(AppSettings.SRCGEN_DISABLE_LABEL_LOCALIZATION, false)) {
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mLocalizer.LocalPrefix = ":";
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mLocalizer.Analyze();
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}
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// Use UTF-8 encoding, without a byte-order mark.
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using (StreamWriter sw = new StreamWriter(pathName, false, new UTF8Encoding(false))) {
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mOutStream = sw;
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if (Settings.GetBool(AppSettings.SRCGEN_ADD_IDENT_COMMENT, false)) {
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// No version-specific stuff yet. We're generating code for v1.0.
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OutputLine(SourceFormatter.FullLineCommentDelimiter +
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string.Format(Properties.Resources.GENERATED_FOR_VERSION,
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"Merlin 32", new CommonUtil.Version(1, 0)));
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}
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GenCommon.Generate(this, sw, worker);
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}
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mOutStream = null;
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return pathNames;
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}
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// IGenerator
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public void OutputDataOp(int offset) {
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Formatter formatter = SourceFormatter;
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byte[] data = Project.FileData;
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Anattrib attr = Project.GetAnattrib(offset);
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string labelStr = string.Empty;
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if (attr.Symbol != null) {
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labelStr = mLocalizer.ConvLabel(attr.Symbol.Label);
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}
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string commentStr = SourceFormatter.FormatEolComment(Project.Comments[offset]);
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string opcodeStr, operandStr;
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FormatDescriptor dfd = attr.DataDescriptor;
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Debug.Assert(dfd != null);
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int length = dfd.Length;
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Debug.Assert(length > 0);
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bool multiLine = false;
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switch (dfd.FormatType) {
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case FormatDescriptor.Type.Default:
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if (length != 1) {
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Debug.Assert(false);
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length = 1;
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}
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opcodeStr = sDataOpNames.DefineData1;
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int operand = RawData.GetWord(data, offset, length, false);
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operandStr = formatter.FormatHexValue(operand, length * 2);
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break;
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case FormatDescriptor.Type.NumericLE:
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opcodeStr = sDataOpNames.GetDefineData(length);
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operand = RawData.GetWord(data, offset, length, false);
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operandStr = PseudoOp.FormatNumericOperand(formatter, Project.SymbolTable,
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mLocalizer.LabelMap, dfd, operand, length,
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PseudoOp.FormatNumericOpFlags.None);
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break;
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case FormatDescriptor.Type.NumericBE:
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opcodeStr = sDataOpNames.GetDefineBigData(length);
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if (opcodeStr == null) {
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// Nothing defined, output as comma-separated single-byte values.
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GenerateShortSequence(offset, length, out opcodeStr, out operandStr);
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} else {
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operand = RawData.GetWord(data, offset, length, true);
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operandStr = PseudoOp.FormatNumericOperand(formatter, Project.SymbolTable,
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mLocalizer.LabelMap, dfd, operand, length,
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PseudoOp.FormatNumericOpFlags.None);
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}
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break;
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case FormatDescriptor.Type.Fill:
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opcodeStr = sDataOpNames.Fill;
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operandStr = length + "," + formatter.FormatHexValue(data[offset], 2);
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break;
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case FormatDescriptor.Type.Dense:
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multiLine = true;
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opcodeStr = operandStr = null;
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OutputDenseHex(offset, length, labelStr, commentStr);
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break;
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case FormatDescriptor.Type.String:
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multiLine = true;
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opcodeStr = operandStr = null;
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OutputString(offset, labelStr, commentStr);
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break;
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default:
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opcodeStr = "???";
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operandStr = "***";
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break;
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}
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if (!multiLine) {
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opcodeStr = formatter.FormatPseudoOp(opcodeStr);
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OutputLine(labelStr, opcodeStr, operandStr, commentStr);
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}
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}
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private void OutputDenseHex(int offset, int length, string labelStr, string commentStr) {
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Formatter formatter = SourceFormatter;
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byte[] data = Project.FileData;
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int maxPerLine = MAX_OPERAND_LEN / 2;
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string opcodeStr = formatter.FormatPseudoOp(sDataOpNames.Dense);
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for (int i = 0; i < length; i += maxPerLine) {
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int subLen = length - i;
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if (subLen > maxPerLine) {
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subLen = maxPerLine;
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}
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string operandStr = formatter.FormatDenseHex(data, offset + i, subLen);
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OutputLine(labelStr, opcodeStr, operandStr, commentStr);
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labelStr = commentStr = string.Empty;
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}
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}
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// IGenerator
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public string ModifyOpcode(int offset, OpDef op) {
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if (op.IsUndocumented) {
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return null;
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}
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// The assembler works correctly if the symbol is defined as a two-digit hex
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// value (e.g. "foo equ $80") but fails if it's four (e.g. "foo equ $0080"). We
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// output symbols with minimal digits, but we have no control over labels when
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// the code has a zero-page EQU. So if the operand is a reference to a user
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// label, we need to output the instruction as hex.
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if (op == OpDef.OpPEI_StackDPInd ||
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op == OpDef.OpSTY_DPIndexX ||
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op == OpDef.OpSTX_DPIndexY ||
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op.AddrMode == OpDef.AddressMode.DPIndLong ||
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op.AddrMode == OpDef.AddressMode.DPInd ||
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op.AddrMode == OpDef.AddressMode.DPIndexXInd) {
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FormatDescriptor dfd = Project.GetAnattrib(offset).DataDescriptor;
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if (dfd != null && dfd.HasSymbol) {
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// It has a symbol. See if the symbol target is a label (auto or user).
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if (Project.SymbolTable.TryGetValue(dfd.SymbolRef.Label, out Symbol sym)) {
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if (sym.IsInternalLabel) {
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return null;
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}
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}
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}
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}
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return string.Empty;
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}
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// IGenerator
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public void GenerateShortSequence(int offset, int length, out string opcode,
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out string operand) {
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Debug.Assert(length >= 1 && length <= 4);
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// Use a comma-separated list of individual hex bytes.
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opcode = sDataOpNames.DefineData1;
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StringBuilder sb = new StringBuilder(length * 4);
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for (int i = 0; i < length; i++) {
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if (i != 0) {
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sb.Append(',');
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}
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sb.Append(SourceFormatter.FormatHexValue(Project.FileData[offset + i], 2));
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}
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operand = sb.ToString();
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}
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// IGenerator
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public void OutputAsmConfig() {
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// nothing to do
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}
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// IGenerator
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public void OutputEquDirective(string name, string valueStr, string comment) {
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OutputLine(name, SourceFormatter.FormatPseudoOp(sDataOpNames.EquDirective),
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valueStr, SourceFormatter.FormatEolComment(comment));
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}
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// IGenerator
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public void OutputOrgDirective(int offset, int address) {
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OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(sDataOpNames.OrgDirective),
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SourceFormatter.FormatHexValue(address, 4), string.Empty);
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}
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// IGenerator
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public void OutputRegWidthDirective(int offset, int prevM, int prevX, int newM, int newX) {
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// prevM/prevX may be ambiguous for offset 0, but otherwise everything
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// should be either 0 or 1.
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Debug.Assert(newM == 0 || newM == 1);
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Debug.Assert(newX == 0 || newX == 1);
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if (offset == 0 && newM == 1 && newX == 1) {
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// Assembler defaults to short regs, so we can skip this.
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return;
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}
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OutputLine(string.Empty,
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SourceFormatter.FormatPseudoOp(sDataOpNames.RegWidthDirective),
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"%" + newM + newX, string.Empty);
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}
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// IGenerator
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public void OutputLine(string fullLine) {
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mOutStream.WriteLine(fullLine);
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}
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// IGenerator
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public void OutputLine(string label, string opcode, string operand, string comment) {
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// Split long label, but not on EQU directives (confuses the assembler).
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if (mLongLabelNewLine && label.Length >= mColumnWidths[0] &&
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!string.Equals(opcode, sDataOpNames.EquDirective,
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StringComparison.InvariantCultureIgnoreCase)) {
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mOutStream.WriteLine(label);
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label = string.Empty;
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}
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mLineBuilder.Clear();
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TextUtil.AppendPaddedString(mLineBuilder, label, mColumnWidths[0]);
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TextUtil.AppendPaddedString(mLineBuilder, opcode, mColumnWidths[0] + mColumnWidths[1]);
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TextUtil.AppendPaddedString(mLineBuilder, operand,
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mColumnWidths[0] + mColumnWidths[1] + mColumnWidths[2]);
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if (string.IsNullOrEmpty(comment)) {
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// Trim trailing spaces off of opcode or operand. If they want trailing
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// spaces at the end of a comment, that's fine.
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CommonUtil.TextUtil.TrimEnd(mLineBuilder);
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} else {
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mLineBuilder.Append(comment);
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}
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mOutStream.WriteLine(mLineBuilder.ToString());
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}
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private enum RevMode { Forward, Reverse, BlockReverse };
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private void OutputString(int offset, string labelStr, string commentStr) {
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// This gets complicated.
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//
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// For Dci, L8String, and L16String, the entire string needs to fit in the
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// operand of one line. If it can't, we need to separate the length byte/word
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// or inverted character out, and just dump the rest as ASCII. Computing the
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// line length requires factoring delimiter character escapes. (NOTE: contrary
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// to the documentation, STR and STRL do include trailing hex characters in the
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// length calculation, so it's possible to escape delimiters.)
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//
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// For Reverse, we can span lines, but only if we emit the lines in
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// backward order. Also, Merlin doesn't allow hex to be embedded in a REV
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// operation, so we can't use REV if the string contains a delimiter.
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//
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// DciReverse is deprecated, but we can handle it as a Reverse string with a
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// trailing byte on a following line.
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//
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// For aesthetic purposes, zero-length CString, L8String, and L16String
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// should be output as DFB/DW zeroes rather than an empty string -- makes
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// it easier to read.
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Formatter formatter = SourceFormatter;
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byte[] data = Project.FileData;
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Anattrib attr = Project.GetAnattrib(offset);
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FormatDescriptor dfd = attr.DataDescriptor;
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Debug.Assert(dfd != null);
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Debug.Assert(dfd.FormatType == FormatDescriptor.Type.String);
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Debug.Assert(dfd.Length > 0);
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bool highAscii = false;
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int showZeroes = 0;
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int leadingBytes = 0;
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int trailingBytes = 0;
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bool showLeading = false;
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bool showTrailing = false;
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RevMode revMode = RevMode.Forward;
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switch (dfd.FormatSubType) {
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case FormatDescriptor.SubType.None:
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highAscii = (data[offset] & 0x80) != 0;
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break;
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case FormatDescriptor.SubType.Dci:
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highAscii = (data[offset] & 0x80) != 0;
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break;
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case FormatDescriptor.SubType.Reverse:
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highAscii = (data[offset] & 0x80) != 0;
|
|
revMode = RevMode.Reverse;
|
|
break;
|
|
case FormatDescriptor.SubType.DciReverse:
|
|
highAscii = (data[offset + dfd.Length - 1] & 0x80) != 0;
|
|
revMode = RevMode.Reverse;
|
|
break;
|
|
case FormatDescriptor.SubType.CString:
|
|
highAscii = (data[offset] & 0x80) != 0;
|
|
if (dfd.Length == 1) {
|
|
showZeroes = 1; // empty null-terminated string
|
|
}
|
|
trailingBytes = 1;
|
|
showTrailing = true;
|
|
break;
|
|
case FormatDescriptor.SubType.L8String:
|
|
if (dfd.Length > 1) {
|
|
highAscii = (data[offset + 1] & 0x80) != 0;
|
|
} else {
|
|
//showZeroes = 1;
|
|
}
|
|
leadingBytes = 1;
|
|
break;
|
|
case FormatDescriptor.SubType.L16String:
|
|
if (dfd.Length > 2) {
|
|
highAscii = (data[offset + 2] & 0x80) != 0;
|
|
} else {
|
|
//showZeroes = 2;
|
|
}
|
|
leadingBytes = 2;
|
|
break;
|
|
default:
|
|
Debug.Assert(false);
|
|
return;
|
|
}
|
|
|
|
if (showZeroes != 0) {
|
|
// Empty string. Just output the length byte(s) or null terminator.
|
|
GenerateShortSequence(offset, showZeroes, out string opcode, out string operand);
|
|
OutputLine(labelStr, opcode, operand, commentStr);
|
|
return;
|
|
}
|
|
|
|
// Merlin 32 uses single-quote for low ASCII, double-quote for high ASCII. When
|
|
// quoting the delimiter we use a hexadecimal value. We need to bear in mind that
|
|
// we're forcing the characters to low ASCII, but the actual character being
|
|
// escaped might be in high ASCII. Hence delim vs. delimReplace.
|
|
char delim = highAscii ? '"' : '\'';
|
|
char delimReplace = highAscii ? ((char)(delim | 0x80)) : delim;
|
|
StringGather gath = null;
|
|
|
|
// Run the string through so we can see if it'll fit on one line. As a minor
|
|
// optimization, we skip this step for "generic" strings, which are probably
|
|
// the most common thing.
|
|
if (dfd.FormatSubType != FormatDescriptor.SubType.None) {
|
|
gath = new StringGather(this, labelStr, "???", commentStr, delim,
|
|
delimReplace, StringGather.ByteStyle.DenseHex, MAX_OPERAND_LEN, true);
|
|
FeedGath(gath, data, offset, dfd.Length, revMode, leadingBytes, showLeading,
|
|
trailingBytes, showTrailing);
|
|
Debug.Assert(gath.NumLinesOutput > 0);
|
|
}
|
|
|
|
string opcodeStr;
|
|
|
|
switch (dfd.FormatSubType) {
|
|
case FormatDescriptor.SubType.None:
|
|
opcodeStr = highAscii ? sDataOpNames.StrGenericHi : sDataOpNames.StrGeneric;
|
|
break;
|
|
case FormatDescriptor.SubType.Dci:
|
|
if (gath.NumLinesOutput == 1) {
|
|
opcodeStr = highAscii ? sDataOpNames.StrDciHi : sDataOpNames.StrDci;
|
|
} else {
|
|
opcodeStr = highAscii ? sDataOpNames.StrGenericHi : sDataOpNames.StrGeneric;
|
|
trailingBytes = 1;
|
|
showTrailing = true;
|
|
}
|
|
break;
|
|
case FormatDescriptor.SubType.Reverse:
|
|
if (gath.HasDelimiter) {
|
|
// can't include escaped delimiters in REV
|
|
opcodeStr = highAscii ? sDataOpNames.StrGenericHi : sDataOpNames.StrGeneric;
|
|
revMode = RevMode.Forward;
|
|
} else if (gath.NumLinesOutput > 1) {
|
|
opcodeStr = highAscii ? sDataOpNames.StrReverseHi : sDataOpNames.StrReverse;
|
|
revMode = RevMode.BlockReverse;
|
|
} else {
|
|
opcodeStr = highAscii ? sDataOpNames.StrReverseHi : sDataOpNames.StrReverse;
|
|
Debug.Assert(revMode == RevMode.Reverse);
|
|
}
|
|
break;
|
|
case FormatDescriptor.SubType.DciReverse:
|
|
// Mostly punt -- output as ASCII with special handling for first byte.
|
|
opcodeStr = highAscii ? sDataOpNames.StrGenericHi : sDataOpNames.StrGeneric;
|
|
revMode = RevMode.Forward;
|
|
leadingBytes = 1;
|
|
showLeading = true;
|
|
break;
|
|
case FormatDescriptor.SubType.CString:
|
|
//opcodeStr = sDataOpNames.StrNullTerm[highAscii ? 1 : 0];
|
|
opcodeStr = highAscii ? sDataOpNames.StrGenericHi : sDataOpNames.StrGeneric;
|
|
break;
|
|
case FormatDescriptor.SubType.L8String:
|
|
if (gath.NumLinesOutput == 1) {
|
|
opcodeStr = highAscii ? sDataOpNames.StrLen8Hi : sDataOpNames.StrLen8;
|
|
} else {
|
|
opcodeStr = highAscii ? sDataOpNames.StrGenericHi : sDataOpNames.StrGeneric;
|
|
leadingBytes = 1;
|
|
showLeading = true;
|
|
}
|
|
break;
|
|
case FormatDescriptor.SubType.L16String:
|
|
if (gath.NumLinesOutput == 1) {
|
|
opcodeStr = highAscii ? sDataOpNames.StrLen16Hi : sDataOpNames.StrLen16;
|
|
} else {
|
|
opcodeStr = highAscii ? sDataOpNames.StrGenericHi : sDataOpNames.StrGeneric;
|
|
leadingBytes = 2;
|
|
showLeading = true;
|
|
}
|
|
break;
|
|
default:
|
|
Debug.Assert(false);
|
|
return;
|
|
}
|
|
|
|
opcodeStr = formatter.FormatPseudoOp(opcodeStr);
|
|
|
|
// Create a new StringGather, with the final opcode choice.
|
|
gath = new StringGather(this, labelStr, opcodeStr, commentStr, delim,
|
|
delimReplace, StringGather.ByteStyle.DenseHex, MAX_OPERAND_LEN, false);
|
|
FeedGath(gath, data, offset, dfd.Length, revMode, leadingBytes, showLeading,
|
|
trailingBytes, showTrailing);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Feeds the bytes into the StringGather.
|
|
/// </summary>
|
|
private void FeedGath(StringGather gath, byte[] data, int offset, int length,
|
|
RevMode revMode, int leadingBytes, bool showLeading,
|
|
int trailingBytes, bool showTrailing) {
|
|
int startOffset = offset;
|
|
int strEndOffset = offset + length - trailingBytes;
|
|
|
|
if (showLeading) {
|
|
while (leadingBytes-- > 0) {
|
|
gath.WriteByte(data[offset++]);
|
|
}
|
|
} else {
|
|
offset += leadingBytes;
|
|
}
|
|
if (revMode == RevMode.BlockReverse) {
|
|
const int maxPerLine = MAX_OPERAND_LEN - 2;
|
|
int numBlockLines = (length + maxPerLine - 1) / maxPerLine;
|
|
|
|
for (int chunk = 0; chunk < numBlockLines; chunk++) {
|
|
int chunkOffset = startOffset + chunk * maxPerLine;
|
|
int endOffset = chunkOffset + maxPerLine;
|
|
if (endOffset > strEndOffset) {
|
|
endOffset = strEndOffset;
|
|
}
|
|
for (int off = endOffset - 1; off >= chunkOffset; off--) {
|
|
gath.WriteChar((char)(data[off] & 0x7f));
|
|
}
|
|
}
|
|
} else {
|
|
for (; offset < strEndOffset; offset++) {
|
|
if (revMode == RevMode.Forward) {
|
|
gath.WriteChar((char)(data[offset] & 0x7f));
|
|
} else if (revMode == RevMode.Reverse) {
|
|
int posn = startOffset + (strEndOffset - offset) - 1;
|
|
gath.WriteChar((char)(data[posn] & 0x7f));
|
|
} else {
|
|
Debug.Assert(false);
|
|
}
|
|
}
|
|
}
|
|
while (showTrailing && trailingBytes-- > 0) {
|
|
gath.WriteByte(data[offset++]);
|
|
}
|
|
gath.Finish();
|
|
}
|
|
}
|
|
|
|
#endregion IGenerator
|
|
|
|
|
|
#region IAssembler
|
|
|
|
/// <summary>
|
|
/// Cross-assembler execution interface.
|
|
/// </summary>
|
|
public class AsmMerlin32 : IAssembler {
|
|
// Paths from generator.
|
|
private List<string> mPathNames;
|
|
|
|
// Directory to make current before executing assembler.
|
|
private string mWorkDirectory;
|
|
|
|
|
|
// IAssembler
|
|
public void GetExeIdentifiers(out string humanName, out string exeName) {
|
|
humanName = "Merlin Assembler";
|
|
exeName = "Merlin32";
|
|
}
|
|
|
|
// IAssembler
|
|
public AssemblerConfig GetDefaultConfig() {
|
|
return new AssemblerConfig(string.Empty, new int[] { 9, 6, 11, 74 });
|
|
}
|
|
|
|
// IAssembler
|
|
public AssemblerVersion QueryVersion() {
|
|
AssemblerConfig config =
|
|
AssemblerConfig.GetConfig(AppSettings.Global, AssemblerInfo.Id.Merlin32);
|
|
if (config == null || string.IsNullOrEmpty(config.ExecutablePath)) {
|
|
return null;
|
|
}
|
|
|
|
ShellCommand cmd = new ShellCommand(config.ExecutablePath, string.Empty,
|
|
Directory.GetCurrentDirectory(), null);
|
|
cmd.Execute();
|
|
if (string.IsNullOrEmpty(cmd.Stdout)) {
|
|
return null;
|
|
}
|
|
|
|
// Stdout: "C:\Src\WorkBench\Merlin32.exe v 1.0, (c) Brutal Deluxe ..."
|
|
// Other platforms may not have the ".exe". Find first occurrence of " v ".
|
|
|
|
const string PREFIX = " v "; // not expecting this to appear in the path
|
|
string str = cmd.Stdout;
|
|
int start = str.IndexOf(PREFIX);
|
|
int end = (start < 0) ? -1 : str.IndexOf(',', start);
|
|
|
|
if (start < 0 || end < 0 || start + PREFIX.Length >= end) {
|
|
Debug.WriteLine("Couldn't find version in " + str);
|
|
return null;
|
|
}
|
|
start += PREFIX.Length;
|
|
string versionStr = str.Substring(start, end - start);
|
|
CommonUtil.Version version = CommonUtil.Version.Parse(versionStr);
|
|
if (!version.IsValid) {
|
|
return null;
|
|
}
|
|
return new AssemblerVersion(versionStr, version);
|
|
}
|
|
|
|
// IAssembler
|
|
public void Configure(List<string> pathNames, string workDirectory) {
|
|
// Clone pathNames, in case the caller decides to modify the original.
|
|
mPathNames = new List<string>(pathNames.Count);
|
|
foreach (string str in pathNames) {
|
|
mPathNames.Add(str);
|
|
}
|
|
|
|
mWorkDirectory = workDirectory;
|
|
}
|
|
|
|
// IAssembler
|
|
public AssemblerResults RunAssembler(BackgroundWorker worker) {
|
|
// Reduce input file to a partial path if possible. This is really just to make
|
|
// what we display to the user a little easier to read.
|
|
string pathName = mPathNames[0];
|
|
if (pathName.StartsWith(mWorkDirectory)) {
|
|
pathName = pathName.Remove(0, mWorkDirectory.Length + 1);
|
|
} else {
|
|
// Unexpected, but shouldn't be a problem.
|
|
Debug.WriteLine("NOTE: source file is not in work directory");
|
|
}
|
|
|
|
AssemblerConfig config =
|
|
AssemblerConfig.GetConfig(AppSettings.Global, AssemblerInfo.Id.Merlin32);
|
|
if (string.IsNullOrEmpty(config.ExecutablePath)) {
|
|
Debug.WriteLine("Assembler not configured");
|
|
return null;
|
|
}
|
|
|
|
worker.ReportProgress(0, Properties.Resources.PROGRESS_ASSEMBLING);
|
|
|
|
// Wrap pathname in quotes in case it has spaces.
|
|
// (Do we need to shell-escape quotes in the pathName?)
|
|
ShellCommand cmd = new ShellCommand(config.ExecutablePath, ". \"" + pathName + "\"",
|
|
mWorkDirectory, null);
|
|
cmd.Execute();
|
|
|
|
// Can't really do anything with a "cancel" request.
|
|
|
|
// Output filename is the input filename without the ".S". Since the filename
|
|
// was generated by us we can be confident in the format.
|
|
string outputFile = mPathNames[0].Substring(0, mPathNames[0].Length - 2);
|
|
|
|
return new AssemblerResults(cmd.FullCommandLine, cmd.ExitCode, cmd.Stdout,
|
|
cmd.Stderr, outputFile);
|
|
}
|
|
}
|
|
|
|
#endregion IAssembler
|
|
}
|