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Early data sheets listed BRK as one byte, but RTI after a BRK skips the following byte, effectively making BRK a 2-byte instruction. Sometimes, such as when diassembling Apple /// SOS code, it's handy to treat it that way explicitly. This change makes two-byte BRKs optional, controlled by a checkbox in the project settings. In the system definitions it defaults to true for Apple ///, false for all others. ACME doesn't allow BRK to have an arg, and cc65 only allows it for 65816 code (?), so it's emitted as a hex blob for those assemblers. Anyone wishing to target those assemblers should stick to 1-byte mode. Extension scripts have to switch between formatting one byte of inline data and formatting an instruction with a one-byte operand. A helper function has been added to the plugin Util class. To get some regression test coverage, 2022-extension-scripts has been configured to use two-byte BRK. Also, added/corrected some SOS constants. See also issue #44.
159 lines
5.8 KiB
C#
159 lines
5.8 KiB
C#
/*
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* Copyright 2019 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using System.Collections.Generic;
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namespace SourceGen {
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/// <summary>
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/// A collection of project properties.
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///
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/// The class is mutable, but may only be modified by the property editor (which updates
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/// a work object that gets put into the project by DisasmProject.ApplyChanges) or
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/// the deserializer.
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///
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/// All fields are explicitly handled by the ProjectFile serializer.
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/// </summary>
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public class ProjectProperties {
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//
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// NOTE:
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// If you add or modify a member, make sure to update the copy constructor and
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// add serialization code to ProjectFile.
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//
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/// <summary>
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/// Some parameters we feed to the analyzers.
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/// </summary>
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public class AnalysisParameters {
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// This is very similar to Formatter.FormatConfig.CharConvMode, but it serves
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// a different purpose and might diverge in the future.
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public enum TextScanMode {
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Unknown = 0,
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LowAscii,
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LowHighAscii,
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C64Petscii,
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C64ScreenCode,
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}
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public bool AnalyzeUncategorizedData { get; set; }
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public TextScanMode DefaultTextScanMode { get; set; }
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public int MinCharsForString { get; set; }
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public bool SeekNearbyTargets { get; set; }
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public bool SmartPlpHandling { get; set; }
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public AnalysisParameters() {
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// Set default values.
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AnalyzeUncategorizedData = true;
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DefaultTextScanMode = TextScanMode.LowHighAscii;
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MinCharsForString = DataAnalysis.DEFAULT_MIN_STRING_LENGTH;
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SeekNearbyTargets = true;
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SmartPlpHandling = true;
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}
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public AnalysisParameters(AnalysisParameters src) {
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AnalyzeUncategorizedData = src.AnalyzeUncategorizedData;
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DefaultTextScanMode = src.DefaultTextScanMode;
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MinCharsForString = src.MinCharsForString;
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SeekNearbyTargets = src.SeekNearbyTargets;
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SmartPlpHandling = src.SmartPlpHandling;
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}
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}
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/// <summary>
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/// Configured CPU type.
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/// </summary>
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public Asm65.CpuDef.CpuType CpuType { get; set; }
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/// <summary>
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/// Should we include undocumented instructions?
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/// </summary>
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public bool IncludeUndocumentedInstr { get; set; }
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/// <summary>
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/// Should we treat BRK instructions as 2 bytes?
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/// </summary>
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public bool TwoByteBrk { get; set; }
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/// <summary>
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/// Initial status flags at entry points.
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/// </summary>
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public Asm65.StatusFlags EntryFlags { get; set; }
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/// <summary>
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/// Naming style for auto-generated labels.
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/// </summary>
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public AutoLabel.Style AutoLabelStyle { get; set; }
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/// <summary>
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/// Configurable parameters for the analyzers.
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/// </summary>
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public AnalysisParameters AnalysisParams { get; set; }
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/// <summary>
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/// The identifiers of the platform symbol files we want to load symbols from.
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/// </summary>
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public List<string> PlatformSymbolFileIdentifiers { get; private set; }
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/// <summary>
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/// The identifiers of the extension scripts we want to load.
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/// </summary>
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public List<string> ExtensionScriptFileIdentifiers { get; private set; }
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/// <summary>
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/// Symbols defined at the project level. These get merged with PlatformSyms.
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/// The list key is the symbol's label.
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/// </summary>
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public SortedList<string, DefSymbol> ProjectSyms { get; private set; }
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/// <summary>
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/// Nullary constructor.
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/// </summary>
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public ProjectProperties() {
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AnalysisParams = new AnalysisParameters();
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PlatformSymbolFileIdentifiers = new List<string>();
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ExtensionScriptFileIdentifiers = new List<string>();
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ProjectSyms = new SortedList<string, DefSymbol>();
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}
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/// <summary>
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/// Copy constructor.
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/// </summary>
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/// <param name="src">Object to clone.</param>
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public ProjectProperties(ProjectProperties src) : this() {
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CpuType = src.CpuType;
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IncludeUndocumentedInstr = src.IncludeUndocumentedInstr;
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TwoByteBrk = src.TwoByteBrk;
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EntryFlags = src.EntryFlags;
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AutoLabelStyle = src.AutoLabelStyle;
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AnalysisParams = new AnalysisParameters(src.AnalysisParams);
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// Clone PlatformSymbolFileIdentifiers
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foreach (string fileName in src.PlatformSymbolFileIdentifiers) {
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PlatformSymbolFileIdentifiers.Add(fileName);
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}
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// Clone ExtensionScriptFileIdentifiers
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foreach (string fileName in src.ExtensionScriptFileIdentifiers) {
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ExtensionScriptFileIdentifiers.Add(fileName);
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}
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// Clone ProjectSyms
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foreach (KeyValuePair<string, DefSymbol> kvp in src.ProjectSyms) {
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ProjectSyms[kvp.Key] = kvp.Value;
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}
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}
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}
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}
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