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6502bench/SourceGen/ProjectProperties.cs
Andy McFadden dfd5bcab1b Optionally treat BRKs as two-byte instructions
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.
2019-10-09 14:55:56 -07:00

159 lines
5.8 KiB
C#

/*
* Copyright 2019 faddenSoft
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
namespace SourceGen {
/// <summary>
/// A collection of project properties.
///
/// The class is mutable, but may only be modified by the property editor (which updates
/// a work object that gets put into the project by DisasmProject.ApplyChanges) or
/// the deserializer.
///
/// All fields are explicitly handled by the ProjectFile serializer.
/// </summary>
public class ProjectProperties {
//
// NOTE:
// If you add or modify a member, make sure to update the copy constructor and
// add serialization code to ProjectFile.
//
/// <summary>
/// Some parameters we feed to the analyzers.
/// </summary>
public class AnalysisParameters {
// This is very similar to Formatter.FormatConfig.CharConvMode, but it serves
// a different purpose and might diverge in the future.
public enum TextScanMode {
Unknown = 0,
LowAscii,
LowHighAscii,
C64Petscii,
C64ScreenCode,
}
public bool AnalyzeUncategorizedData { get; set; }
public TextScanMode DefaultTextScanMode { get; set; }
public int MinCharsForString { get; set; }
public bool SeekNearbyTargets { get; set; }
public bool SmartPlpHandling { get; set; }
public AnalysisParameters() {
// Set default values.
AnalyzeUncategorizedData = true;
DefaultTextScanMode = TextScanMode.LowHighAscii;
MinCharsForString = DataAnalysis.DEFAULT_MIN_STRING_LENGTH;
SeekNearbyTargets = true;
SmartPlpHandling = true;
}
public AnalysisParameters(AnalysisParameters src) {
AnalyzeUncategorizedData = src.AnalyzeUncategorizedData;
DefaultTextScanMode = src.DefaultTextScanMode;
MinCharsForString = src.MinCharsForString;
SeekNearbyTargets = src.SeekNearbyTargets;
SmartPlpHandling = src.SmartPlpHandling;
}
}
/// <summary>
/// Configured CPU type.
/// </summary>
public Asm65.CpuDef.CpuType CpuType { get; set; }
/// <summary>
/// Should we include undocumented instructions?
/// </summary>
public bool IncludeUndocumentedInstr { get; set; }
/// <summary>
/// Should we treat BRK instructions as 2 bytes?
/// </summary>
public bool TwoByteBrk { get; set; }
/// <summary>
/// Initial status flags at entry points.
/// </summary>
public Asm65.StatusFlags EntryFlags { get; set; }
/// <summary>
/// Naming style for auto-generated labels.
/// </summary>
public AutoLabel.Style AutoLabelStyle { get; set; }
/// <summary>
/// Configurable parameters for the analyzers.
/// </summary>
public AnalysisParameters AnalysisParams { get; set; }
/// <summary>
/// The identifiers of the platform symbol files we want to load symbols from.
/// </summary>
public List<string> PlatformSymbolFileIdentifiers { get; private set; }
/// <summary>
/// The identifiers of the extension scripts we want to load.
/// </summary>
public List<string> ExtensionScriptFileIdentifiers { get; private set; }
/// <summary>
/// Symbols defined at the project level. These get merged with PlatformSyms.
/// The list key is the symbol's label.
/// </summary>
public SortedList<string, DefSymbol> ProjectSyms { get; private set; }
/// <summary>
/// Nullary constructor.
/// </summary>
public ProjectProperties() {
AnalysisParams = new AnalysisParameters();
PlatformSymbolFileIdentifiers = new List<string>();
ExtensionScriptFileIdentifiers = new List<string>();
ProjectSyms = new SortedList<string, DefSymbol>();
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="src">Object to clone.</param>
public ProjectProperties(ProjectProperties src) : this() {
CpuType = src.CpuType;
IncludeUndocumentedInstr = src.IncludeUndocumentedInstr;
TwoByteBrk = src.TwoByteBrk;
EntryFlags = src.EntryFlags;
AutoLabelStyle = src.AutoLabelStyle;
AnalysisParams = new AnalysisParameters(src.AnalysisParams);
// Clone PlatformSymbolFileIdentifiers
foreach (string fileName in src.PlatformSymbolFileIdentifiers) {
PlatformSymbolFileIdentifiers.Add(fileName);
}
// Clone ExtensionScriptFileIdentifiers
foreach (string fileName in src.ExtensionScriptFileIdentifiers) {
ExtensionScriptFileIdentifiers.Add(fileName);
}
// Clone ProjectSyms
foreach (KeyValuePair<string, DefSymbol> kvp in src.ProjectSyms) {
ProjectSyms[kvp.Key] = kvp.Value;
}
}
}
}