mirror of
https://github.com/fadden/6502bench.git
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2065f4ef9e
This worked, sort of. The problem is that SourceGen will revert to hex output in certain situations, such as a broken symbolic reference. There happens to be one in the ZIPPY example, and it's on a relative branch. The goal with the segment stuff is to allow cc65 to treat the source as relocatable code. In that context, a relative branch to an absolute address doesn't make any sense, so the assembler reports a range error. We don't currently have a mechanism that guarantees no references are broken (and no affordance for finding them), so we can't make this mode the default yet. Instead, we continue to use the generic config, but generate the correct set of lines as comments. (issue #39)
870 lines
36 KiB
C#
870 lines
36 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 the cc65 assembler (https://github.com/cc65/cc65).
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/// </summary>
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public class GenCc65 : IGenerator {
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private const string ASM_FILE_SUFFIX = "_cc65.S"; // must start with underscore
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private const string CFG_FILE_SUFFIX = "_cc65.cfg"; // ditto
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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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/// The first time we output a high-ASCII string, we generate a macro for it.
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/// </summary>
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private bool mHighAsciiMacroOutput;
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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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// We test against this in a few places.
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private static CommonUtil.Version V2_17 = new CommonUtil.Version(2, 17);
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// Pseudo-op string constants.
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private static PseudoOp.PseudoOpNames sDataOpNames = new PseudoOp.PseudoOpNames() {
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EquDirective = "=",
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OrgDirective = ".org",
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//RegWidthDirective // .a8, .a16, .i8, .i16
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DefineData1 = ".byte",
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DefineData2 = ".word",
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DefineData3 = ".faraddr",
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DefineData4 = ".dword",
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DefineBigData2 = ".dbyt",
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//DefineBigData3
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//DefineBigData4
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Fill = ".res",
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//Dense // no equivalent, use .byte with comma-separated args
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StrGeneric = ".byte",
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//StrReverse
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StrNullTerm = ".asciiz",
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//StrLen8 // macro with .strlen?
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//StrLen16
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//StrDci
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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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pseudoOps = new PseudoOp.PseudoOpNames() {
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EquDirective = "=",
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OrgDirective = ".org",
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DefineData1 = ".byte",
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DefineData2 = ".word",
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DefineData3 = ".faraddr",
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DefineData4 = ".dword",
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DefineBigData2 = ".dbyt",
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Fill = ".res",
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StrGeneric = ".byte",
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StrNullTerm = ".asciiz",
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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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if (asmVersion != null) {
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// Use the actual version. If it's > 2.17 we'll try to take advantage of
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// bug fixes.
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mAsmVersion = asmVersion.Version;
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} else {
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// No assembler installed. Use 2.17.
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mAsmVersion = V2_17;
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}
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if (mAsmVersion <= V2_17) {
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// cc65 v2.17: https://github.com/cc65/cc65/issues/717
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Quirks.BlockMoveArgsReversed = true;
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// cc65 v2.17: https://github.com/cc65/cc65/issues/754
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Quirks.NoPcRelBankWrap = true;
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}
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Quirks.SinglePassAssembler = 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.Cc65);
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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 = string.Empty;
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config.mForceLongOpcodeSuffix = string.Empty;
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config.mForceDirectOperandPrefix = "z:"; // zero
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config.mForceAbsOperandPrefix = "a:"; // absolute
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config.mForceLongOperandPrefix = "f:"; // far
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config.mEndOfLineCommentDelimiter = ";";
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config.mFullLineCommentDelimiterBase = ";";
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config.mBoxLineCommentDelimiter = ";";
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config.mAllowHighAsciiCharConst = false;
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config.mExpressionMode = Formatter.FormatConfig.ExpressionMode.Cc65;
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}
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// IGenerator
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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 pathName = Path.Combine(mWorkDirectory, mFileNameBase + ASM_FILE_SUFFIX);
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pathNames.Add(pathName);
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string cfgName = Path.Combine(mWorkDirectory, mFileNameBase + CFG_FILE_SUFFIX);
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pathNames.Add(cfgName);
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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(cfgName, false, new UTF8Encoding(false))) {
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GenerateLinkerScript(sw);
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}
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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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//if (mAsmVersion.IsValid && mAsmVersion <= V2_17) {
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// OutputLine(SourceFormatter.FullLineCommentDelimiter +
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// string.Format(Properties.Resources.GENERATED_FOR_VERSION,
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// "cc65", mAsmVersion.ToString()));
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//} else {
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// OutputLine(SourceFormatter.FullLineCommentDelimiter +
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// string.Format(Properties.Resources.GENERATED_FOR_LATEST, "cc65"));
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//}
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// Currently generating code for v2.17.
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OutputLine(SourceFormatter.FullLineCommentDelimiter +
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string.Format(Properties.Resources.GENERATED_FOR_VERSION,
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"cc65", V2_17,
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AsmCc65.OPTIONS + " -C " + Path.GetFileName(cfgName)));
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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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private void GenerateLinkerScript(StreamWriter sw) {
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sw.WriteLine("# 6502bench SourceGen generated linker script for " + mFileNameBase);
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sw.WriteLine("MEMORY {");
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sw.WriteLine(" MAIN: file=%O, start=%S, size=65536;");
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for (int i = 0; i < Project.AddrMap.Count; i++) {
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AddressMap.AddressMapEntry ame = Project.AddrMap[i];
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sw.WriteLine(string.Format("# MEM{0:D3}: file=%O, start=${1:x4}, size={2};",
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i, ame.Addr, ame.Length));
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}
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sw.WriteLine("}");
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sw.WriteLine("SEGMENTS {");
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sw.WriteLine(" CODE: load=MAIN, type=rw;");
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for (int i = 0; i < Project.AddrMap.Count; i++) {
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sw.WriteLine(string.Format("# SEG{0:D3}: load=MEM{0:D3}, type=rw;", i));
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}
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sw.WriteLine("}");
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sw.WriteLine("FEATURES {}");
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sw.WriteLine("SYMBOLS {}");
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}
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// IGenerator
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public void OutputAsmConfig() {
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CpuDef cpuDef = Project.CpuDef;
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string cpuStr;
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if (cpuDef.Type == CpuDef.CpuType.Cpu65816) {
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cpuStr = "65816";
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} else if (cpuDef.Type == CpuDef.CpuType.Cpu65C02) {
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cpuStr = "65C02";
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} else if (cpuDef.Type == CpuDef.CpuType.Cpu6502 && cpuDef.HasUndocumented) {
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cpuStr = "6502X";
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} else {
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cpuStr = "6502";
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}
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OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(".setcpu"),
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'\"' + cpuStr + '\"', string.Empty);
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}
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/// <summary>
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/// Map the undocumented opcodes to the cc65 mnemonics. There's almost no difference
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/// vs. the Unintended Opcodes mnemonics.
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///
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/// We don't include the double- and triple-byte NOPs here, as cc65 doesn't
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/// appear to have a definition for them (as of 2.17). We also omit the alias
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/// for SBC. These will all be output as hex.
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/// </summary>
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private static Dictionary<string, string> sUndocMap = new Dictionary<string, string>() {
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{ OpName.ALR, "alr" }, // imm 0x4b
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{ OpName.ANC, "anc" }, // imm 0x0b (and others)
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{ OpName.ANE, "ane" }, // imm 0x8b
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{ OpName.ARR, "arr" }, // imm 0x6b
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{ OpName.DCP, "dcp" }, // abs 0xcf
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{ OpName.ISC, "isc" }, // abs 0xef
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{ OpName.JAM, "jam" }, // abs 0x02 (and others)
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{ OpName.LAS, "las" }, // abs,y 0xbb
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{ OpName.LAX, "lax" }, // imm 0xab; abs 0xaf
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{ OpName.RLA, "rla" }, // abs 0x2f
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{ OpName.RRA, "rra" }, // abs 0x6f
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{ OpName.SAX, "sax" }, // abs 0x8f
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{ OpName.SBX, "axs" }, //* imm 0xcb
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{ OpName.SHA, "sha" }, // abs,y 0x9f
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{ OpName.SHX, "shx" }, // abs,y 0x9e
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{ OpName.SHY, "shy" }, // abs,x 0x9c
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{ OpName.SLO, "slo" }, // abs 0x0f
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{ OpName.SRE, "sre" }, // abs 0x4f
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{ OpName.TAS, "tas" }, // abs,y 0x9b
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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 == OpDef.OpWDM_WDM || op == OpDef.OpBRK_StackInt) && mAsmVersion <= V2_17) {
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// cc65 v2.17 doesn't support WDM, and assembles BRK <arg> to opcode $05.
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// https://github.com/cc65/cc65/issues/715
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// https://github.com/cc65/cc65/issues/716
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return null;
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} else if (op.IsUndocumented) {
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if (sUndocMap.TryGetValue(op.Mnemonic, out string newValue)) {
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if ((op.Mnemonic == OpName.ANC && op.Opcode != 0x0b) ||
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(op.Mnemonic == OpName.JAM && op.Opcode != 0x02)) {
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// There are multiple opcodes for the same thing. cc65 outputs
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// one specific thing, so we need to match that, and just do a hex
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// dump for the others.
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return null;
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}
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return newValue;
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}
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// Unmapped values include DOP, TOP, and the alternate SBC. Output hex.
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return null;
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} else {
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return string.Empty;
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}
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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 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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StringBuilder sb = new StringBuilder(MAX_OPERAND_LEN);
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string opcodeStr = formatter.FormatPseudoOp(sDataOpNames.DefineData1);
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int maxPerLine = MAX_OPERAND_LEN / 4;
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int numChunks = (length + maxPerLine - 1) / maxPerLine;
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for (int chunk = 0; chunk < numChunks; chunk++) {
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int chunkStart = chunk * maxPerLine;
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int chunkEnd = Math.Min((chunk + 1) * maxPerLine, length);
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for (int i = chunkStart; i < chunkEnd; i++) {
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if (i != chunkStart) {
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sb.Append(',');
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}
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sb.Append(formatter.FormatHexValue(data[offset + i], 2));
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}
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OutputLine(labelStr, opcodeStr, sb.ToString(), commentStr);
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labelStr = commentStr = string.Empty;
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sb.Clear();
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}
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}
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/// <summary>
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/// Outputs formatted data in an unformatted way, because the code generator couldn't
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/// figure out how to do something better.
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/// </summary>
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private void OutputNoJoy(int offset, int length, string labelStr, string commentStr) {
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byte[] data = Project.FileData;
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Debug.Assert(length > 0);
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Debug.Assert(offset >= 0 && offset < data.Length);
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|
bool singleValue = true;
|
|
byte val = data[offset];
|
|
for (int i = 1; i < length; i++) {
|
|
if (data[offset + i] != val) {
|
|
singleValue = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (singleValue) {
|
|
string opcodeStr = SourceFormatter.FormatPseudoOp(sDataOpNames.Fill);
|
|
string operandStr = length + "," + SourceFormatter.FormatHexValue(val, 2);
|
|
OutputLine(labelStr, opcodeStr, operandStr, commentStr);
|
|
} else {
|
|
OutputDenseHex(offset, length, labelStr, commentStr);
|
|
}
|
|
}
|
|
|
|
// IGenerator
|
|
public void OutputEquDirective(string name, string valueStr, string comment) {
|
|
OutputLine(name, SourceFormatter.FormatPseudoOp(sDataOpNames.EquDirective),
|
|
valueStr, SourceFormatter.FormatEolComment(comment));
|
|
}
|
|
|
|
// IGenerator
|
|
public void OutputOrgDirective(int offset, int address) {
|
|
// Linear search for offset. List should be small, so this should be quick.
|
|
int index = 0;
|
|
foreach (AddressMap.AddressMapEntry ame in Project.AddrMap) {
|
|
if (ame.Offset == offset) {
|
|
break;
|
|
}
|
|
index++;
|
|
}
|
|
|
|
mLineBuilder.Clear();
|
|
TextUtil.AppendPaddedString(mLineBuilder, ";", mColumnWidths[0]);
|
|
TextUtil.AppendPaddedString(mLineBuilder, SourceFormatter.FormatPseudoOp(" .segment"),
|
|
mColumnWidths[1]);
|
|
mLineBuilder.AppendFormat("\"SEG{0:D3}\"", index);
|
|
OutputLine(mLineBuilder.ToString());
|
|
|
|
OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(sDataOpNames.OrgDirective),
|
|
SourceFormatter.FormatHexValue(address, 4), string.Empty);
|
|
}
|
|
|
|
// IGenerator
|
|
public void OutputRegWidthDirective(int offset, int prevM, int prevX, int newM, int newX) {
|
|
if (prevM != newM) {
|
|
string mop = (newM == 0) ? ".a16" : ".a8";
|
|
OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(mop),
|
|
string.Empty, string.Empty);
|
|
}
|
|
if (prevX != newX) {
|
|
string xop = (newX == 0) ? ".i16" : ".i8";
|
|
OutputLine(string.Empty, SourceFormatter.FormatPseudoOp(xop),
|
|
string.Empty, string.Empty);
|
|
}
|
|
}
|
|
|
|
// IGenerator
|
|
public void OutputLine(string fullLine) {
|
|
mOutStream.WriteLine(fullLine);
|
|
}
|
|
|
|
// IGenerator
|
|
public void OutputLine(string label, string opcode, string operand, string comment) {
|
|
// If a label is provided, and it doesn't start with a '.' (indicating that it's
|
|
// a directive), and this isn't an EQU directive, add a ':'. Might be easier to
|
|
// just ".feature labels_without_colons", but I'm trying to do things the way
|
|
// that cc65 users will expect.
|
|
if (!string.IsNullOrEmpty(label) && label[0] != '.' &&
|
|
!string.Equals(opcode, sDataOpNames.EquDirective,
|
|
StringComparison.InvariantCultureIgnoreCase)) {
|
|
label += ':';
|
|
|
|
if (mLongLabelNewLine && label.Length >= mColumnWidths[0]) {
|
|
mOutStream.WriteLine(label);
|
|
label = string.Empty;
|
|
}
|
|
}
|
|
|
|
mLineBuilder.Clear();
|
|
TextUtil.AppendPaddedString(mLineBuilder, label, mColumnWidths[0]);
|
|
TextUtil.AppendPaddedString(mLineBuilder, opcode, mColumnWidths[0] + mColumnWidths[1]);
|
|
TextUtil.AppendPaddedString(mLineBuilder, operand,
|
|
mColumnWidths[0] + mColumnWidths[1] + mColumnWidths[2]);
|
|
if (string.IsNullOrEmpty(comment)) {
|
|
// Trim trailing spaces off of opcode or operand. If they want trailing
|
|
// spaces at the end of a comment, that's fine.
|
|
CommonUtil.TextUtil.TrimEnd(mLineBuilder);
|
|
} else {
|
|
mLineBuilder.Append(comment);
|
|
}
|
|
|
|
mOutStream.WriteLine(mLineBuilder.ToString());
|
|
}
|
|
|
|
private void OutputString(int offset, string labelStr, string commentStr) {
|
|
// Normal ASCII strings are straightforward: they're just part of a .byte
|
|
// directive, and can mix with anything else in the .byte.
|
|
//
|
|
// For CString we can use .asciiz, but only if the string fits on one line
|
|
// and doesn't include delimiters. For L8String and L16String we can
|
|
// define simple macros, but their use has a similar restriction. High-ASCII
|
|
// strings also require a macro.
|
|
//
|
|
// We might be able to define a macro for DCI and Reverse as well.
|
|
//
|
|
// The limitation on strings with delimiters arises because (1) I don't see a
|
|
// way to escape them within a string, and (2) the simple macro workarounds
|
|
// only take a single argument, not a comma-separated list of stuff.
|
|
//
|
|
// Some ideas here:
|
|
// https://groups.google.com/forum/#!topic/comp.sys.apple2.programmer/5Wkw8mUPcU0
|
|
|
|
Formatter formatter = SourceFormatter;
|
|
byte[] data = Project.FileData;
|
|
Anattrib attr = Project.GetAnattrib(offset);
|
|
FormatDescriptor dfd = attr.DataDescriptor;
|
|
Debug.Assert(dfd != null);
|
|
Debug.Assert(dfd.FormatType == FormatDescriptor.Type.String);
|
|
Debug.Assert(dfd.Length > 0);
|
|
|
|
bool highAscii = false;
|
|
int leadingBytes = 0;
|
|
int trailingBytes = 0;
|
|
bool showLeading = false;
|
|
bool showTrailing = false;
|
|
|
|
switch (dfd.FormatSubType) {
|
|
case FormatDescriptor.SubType.None:
|
|
highAscii = (data[offset] & 0x80) != 0;
|
|
break;
|
|
case FormatDescriptor.SubType.Dci:
|
|
highAscii = (data[offset] & 0x80) != 0;
|
|
trailingBytes = 1;
|
|
showTrailing = true;
|
|
break;
|
|
case FormatDescriptor.SubType.Reverse:
|
|
highAscii = (data[offset] & 0x80) != 0;
|
|
break;
|
|
case FormatDescriptor.SubType.DciReverse:
|
|
highAscii = (data[offset + dfd.Length - 1] & 0x80) != 0;
|
|
leadingBytes = 1;
|
|
showLeading = true;
|
|
break;
|
|
case FormatDescriptor.SubType.CString:
|
|
highAscii = (data[offset] & 0x80) != 0;
|
|
trailingBytes = 1;
|
|
showTrailing = true;
|
|
break;
|
|
case FormatDescriptor.SubType.L8String:
|
|
if (dfd.Length > 1) {
|
|
highAscii = (data[offset + 1] & 0x80) != 0;
|
|
}
|
|
leadingBytes = 1;
|
|
showLeading = true;
|
|
break;
|
|
case FormatDescriptor.SubType.L16String:
|
|
if (dfd.Length > 2) {
|
|
highAscii = (data[offset + 2] & 0x80) != 0;
|
|
}
|
|
leadingBytes = 2;
|
|
showLeading = true;
|
|
break;
|
|
default:
|
|
Debug.Assert(false);
|
|
return;
|
|
}
|
|
|
|
char 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 || highAscii) {
|
|
gath = new StringGather(this, labelStr, "???", commentStr, delim,
|
|
delim, StringGather.ByteStyle.CommaSep, MAX_OPERAND_LEN, true);
|
|
FeedGath(gath, data, offset, dfd.Length, leadingBytes, showLeading,
|
|
trailingBytes, showTrailing);
|
|
Debug.Assert(gath.NumLinesOutput > 0);
|
|
}
|
|
|
|
string opcodeStr = formatter.FormatPseudoOp(sDataOpNames.StrGeneric);
|
|
|
|
switch (dfd.FormatSubType) {
|
|
case FormatDescriptor.SubType.None:
|
|
// Special case for simple short high-ASCII strings. These have no
|
|
// leading or trailing bytes. We can improve this a bit by handling
|
|
// arbitrarily long strings by simply breaking them across lines.
|
|
Debug.Assert(leadingBytes == 0);
|
|
Debug.Assert(trailingBytes == 0);
|
|
if (highAscii && gath.NumLinesOutput == 1 && !gath.HasDelimiter) {
|
|
if (!mHighAsciiMacroOutput) {
|
|
mHighAsciiMacroOutput = true;
|
|
// Output a macro for high-ASCII strings.
|
|
OutputLine(".macro", "HiAscii", "Arg", string.Empty);
|
|
OutputLine(string.Empty, ".repeat", ".strlen(Arg), I", string.Empty);
|
|
OutputLine(string.Empty, ".byte", ".strat(Arg, I) | $80", string.Empty);
|
|
OutputLine(string.Empty, ".endrep", string.Empty, string.Empty);
|
|
OutputLine(".endmacro", string.Empty, string.Empty, string.Empty);
|
|
}
|
|
opcodeStr = formatter.FormatPseudoOp("HiAscii");
|
|
highAscii = false;
|
|
}
|
|
break;
|
|
case FormatDescriptor.SubType.Dci:
|
|
case FormatDescriptor.SubType.Reverse:
|
|
case FormatDescriptor.SubType.DciReverse:
|
|
// Full configured above.
|
|
break;
|
|
case FormatDescriptor.SubType.CString:
|
|
if (gath.NumLinesOutput == 1 && !gath.HasDelimiter) {
|
|
opcodeStr = sDataOpNames.StrNullTerm;
|
|
showTrailing = false;
|
|
}
|
|
break;
|
|
case FormatDescriptor.SubType.L8String:
|
|
case FormatDescriptor.SubType.L16String:
|
|
// Implement macros?
|
|
break;
|
|
default:
|
|
Debug.Assert(false);
|
|
return;
|
|
}
|
|
|
|
if (highAscii) {
|
|
OutputNoJoy(offset, dfd.Length, labelStr, commentStr);
|
|
return;
|
|
}
|
|
|
|
// Create a new StringGather, with the final opcode choice.
|
|
gath = new StringGather(this, labelStr, opcodeStr, commentStr, delim,
|
|
delim, StringGather.ByteStyle.CommaSep, MAX_OPERAND_LEN, false);
|
|
FeedGath(gath, data, offset, dfd.Length, leadingBytes, showLeading,
|
|
trailingBytes, showTrailing);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Feeds the bytes into the StringGather.
|
|
/// </summary>
|
|
private void FeedGath(StringGather gath, byte[] data, int offset, int length,
|
|
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;
|
|
}
|
|
for (; offset < strEndOffset; offset++) {
|
|
gath.WriteChar((char)(data[offset] & 0x7f));
|
|
}
|
|
while (showTrailing && trailingBytes-- > 0) {
|
|
gath.WriteByte(data[offset++]);
|
|
}
|
|
gath.Finish();
|
|
}
|
|
}
|
|
|
|
#endregion IGenerator
|
|
|
|
|
|
#region IAssembler
|
|
|
|
/// <summary>
|
|
/// Cross-assembler execution interface.
|
|
/// </summary>
|
|
public class AsmCc65 : IAssembler {
|
|
// Fixed options. "--target none" is needed to neutralize the character encoding,
|
|
// which seems to default to PETSCII.
|
|
public const string OPTIONS = "--target none";
|
|
|
|
// 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 = "cc65 CL";
|
|
exeName = "cl65";
|
|
}
|
|
|
|
// IAssembler
|
|
public AssemblerConfig GetDefaultConfig() {
|
|
return new AssemblerConfig(string.Empty, new int[] { 9, 8, 11, 72 });
|
|
}
|
|
|
|
// IAssembler
|
|
public AssemblerVersion QueryVersion() {
|
|
AssemblerConfig config =
|
|
AssemblerConfig.GetConfig(AppSettings.Global, AssemblerInfo.Id.Cc65);
|
|
if (config == null || string.IsNullOrEmpty(config.ExecutablePath)) {
|
|
return null;
|
|
}
|
|
|
|
ShellCommand cmd = new ShellCommand(config.ExecutablePath, "--version",
|
|
Directory.GetCurrentDirectory(), null);
|
|
cmd.Execute();
|
|
if (string.IsNullOrEmpty(cmd.Stdout)) {
|
|
return null;
|
|
}
|
|
|
|
// Windows - Stderr: "cl65.exe V2.17\r\n"
|
|
// Linux - Stderr: "cl65 V2.17 - Git N/A\n"
|
|
// Other platforms may not have the ".exe". Find first occurrence of " V".
|
|
|
|
const string PREFIX = " V";
|
|
string str = cmd.Stderr;
|
|
int start = str.IndexOf(PREFIX);
|
|
int end = (start < 0) ? -1 : str.IndexOfAny(new char[] { ' ', '\r', '\n' }, start + 1);
|
|
|
|
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) {
|
|
Debug.Assert(mPathNames.Count == 2);
|
|
string pathName = StripWorkDirectory(mPathNames[0]);
|
|
string cfgName = StripWorkDirectory(mPathNames[1]);
|
|
|
|
AssemblerConfig config =
|
|
AssemblerConfig.GetConfig(AppSettings.Global, AssemblerInfo.Id.Cc65);
|
|
if (string.IsNullOrEmpty(config.ExecutablePath)) {
|
|
Debug.WriteLine("Assembler not configured");
|
|
return null;
|
|
}
|
|
|
|
string cfgOpt = " -C \"" + cfgName + "\"";
|
|
|
|
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,
|
|
OPTIONS + cfgOpt + " \"" + 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);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Reduce input file to a partial path if possible. This is just to make
|
|
/// what we display to the user a little easier to read.
|
|
/// </summary>
|
|
/// <param name="pathName">Full pathname of file.</param>
|
|
/// <returns>Pathname with working directory prefix stripped off.</returns>
|
|
private string StripWorkDirectory(string pathName) {
|
|
if (pathName.StartsWith(mWorkDirectory)) {
|
|
return pathName.Remove(0, mWorkDirectory.Length + 1);
|
|
} else {
|
|
// Unexpected, but shouldn't be a problem.
|
|
Debug.WriteLine("NOTE: source file is not in work directory");
|
|
return pathName;
|
|
}
|
|
}
|
|
}
|
|
|
|
#endregion IAssembler
|
|
}
|