215 lines
8.2 KiB
C#
215 lines
8.2 KiB
C#
using Mesen.GUI.Debugger.Controls;
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using Mesen.GUI.Debugger.Integration;
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using Mesen.GUI.Debugger.Labels;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Mesen.GUI.Debugger.Code
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{
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public class CpuDisassemblyManager : IDisassemblyManager
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{
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protected ICodeDataProvider _provider;
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private ISymbolProvider _symbolProvider;
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public ICodeDataProvider Provider { get { return this._provider; } }
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public virtual CpuType CpuType { get { return CpuType.Cpu; } }
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public virtual SnesMemoryType RelativeMemoryType { get { return SnesMemoryType.CpuMemory; } }
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public virtual SnesMemoryType PrgMemoryType { get { return SnesMemoryType.PrgRom; } }
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public virtual int AddressSize { get { return 6; } }
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public virtual int ByteCodeSize { get { return 4; } }
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public virtual bool AllowSourceView { get { return true; } }
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public virtual void RefreshCode(ISymbolProvider symbolProvider, SourceFileInfo file)
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{
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_symbolProvider = symbolProvider;
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if(file == null) {
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this._provider = new CodeDataProvider(CpuType.Cpu);
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} else {
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this._provider = new SymbolCodeDataProvider(CpuType.Cpu, symbolProvider, file);
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}
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}
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protected virtual int GetFullAddress(int address, int length)
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{
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CpuState state = DebugApi.GetState().Cpu;
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if(length == 4) {
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//Append current DB register to 2-byte addresses
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return (state.DBR << 16) | address;
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} else if(length == 2) {
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//Add direct register to 1-byte addresses
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return (state.D + address);
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}
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return address;
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}
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public LocationInfo GetLocationInfo(string word, int lineIndex)
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{
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LocationInfo location = new LocationInfo();
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int arraySeparatorIndex = word.IndexOf("+");
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if(arraySeparatorIndex >= 0) {
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int index;
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if(int.TryParse(word.Substring(arraySeparatorIndex + 1), out index)) {
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location.ArrayIndex = index;
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}
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word = word.Substring(0, arraySeparatorIndex);
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}
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if(_provider is SymbolCodeDataProvider && _symbolProvider != null) {
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int rangeStart, rangeEnd;
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GetSymbolByteRange(lineIndex, out rangeStart, out rangeEnd);
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location.Symbol = _symbolProvider.GetSymbol(word, rangeStart, rangeEnd);
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}
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location.Label = LabelManager.GetLabel(word);
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int address;
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if(location.Label != null) {
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address = location.Label.GetRelativeAddress(this.CpuType).Address;
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if(address >= 0) {
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location.Address = location.Label.GetRelativeAddress(this.CpuType).Address + (location.ArrayIndex ?? 0);
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} else {
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location.Address = -1;
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}
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} else if(word.StartsWith("$")) {
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word = word.Replace("$", "");
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if(Int32.TryParse(word, System.Globalization.NumberStyles.HexNumber, null, out address)) {
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location.Address = GetFullAddress(address, word.Length);
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}
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} else if(Int32.TryParse(word, out address)) {
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location.Address = (int)address;
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} else {
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location.Address = -1;
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}
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if(location.Label == null && location.Address >= 0) {
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AddressInfo relAddress = new AddressInfo() { Address = location.Address, Type = RelativeMemoryType };
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CodeLabel label = LabelManager.GetLabel(relAddress);
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if(label != null && !string.IsNullOrWhiteSpace(label.Label)) {
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//ignore comment-only labels
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location.Label = label;
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}
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}
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if(location.Label != null && location.Address >= 0) {
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AddressInfo absAddress = location.Label.GetAbsoluteAddress();
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AddressInfo absIndexedAddress = DebugApi.GetAbsoluteAddress(new AddressInfo() { Address = location.Address, Type = RelativeMemoryType });
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if(absIndexedAddress.Address > absAddress.Address) {
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location.ArrayIndex = absIndexedAddress.Address - absAddress.Address;
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}
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}
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return location;
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}
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public Dictionary<string, string> GetTooltipData(string word, int lineIndex)
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{
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if(_provider.GetCodeLineData(lineIndex).Flags.HasFlag(LineFlags.ShowAsData)) {
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//Disable tooltips for .db statements
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return null;
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}
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LocationInfo location = GetLocationInfo(word, lineIndex);
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if(location.Symbol != null) {
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AddressInfo? symbolAddress = _symbolProvider.GetSymbolAddressInfo(location.Symbol);
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if(symbolAddress != null && symbolAddress.Value.Address >= 0) {
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int relativeAddress = DebugApi.GetRelativeAddress(symbolAddress.Value, this.CpuType).Address;
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byte byteValue = relativeAddress >= 0 ? DebugApi.GetMemoryValue(this.RelativeMemoryType, (UInt32)relativeAddress) : (byte)0;
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UInt16 wordValue = relativeAddress >= 0 ? (UInt16)(byteValue | (DebugApi.GetMemoryValue(this.RelativeMemoryType, (UInt32)relativeAddress + 1) << 8)) : (UInt16)0;
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var values = new Dictionary<string, string>() {
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{ "Symbol", location.Symbol.Name + (location.ArrayIndex != null ? $"+{location.ArrayIndex.Value}" : "") }
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};
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if(relativeAddress >= 0) {
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values["CPU Address"] = "$" + relativeAddress.ToString("X4");
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} else {
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values["CPU Address"] = "<out of scope>";
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}
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if(symbolAddress.Value.Type == SnesMemoryType.PrgRom) {
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values["PRG Offset"] = "$" + (symbolAddress.Value.Address + (location.ArrayIndex ?? 0)).ToString("X4");
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}
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values["Value"] = (relativeAddress >= 0 ? $"${byteValue.ToString("X2")} (byte){Environment.NewLine}${wordValue.ToString("X4")} (word)" : "n/a");
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return values;
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} else {
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return new Dictionary<string, string>() {
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{ "Symbol", location.Symbol.Name },
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{ "Constant", location.Symbol.Address.HasValue ? ("$" + location.Symbol.Address.Value.ToString("X2")) : "<unknown>" }
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};
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}
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} else if(location.Label != null) {
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AddressInfo absAddress = location.Label.GetAbsoluteAddress();
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int relativeAddress;
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if(location.Address >= 0) {
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relativeAddress = location.Address;
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AddressInfo absIndexedAddress = DebugApi.GetAbsoluteAddress(new AddressInfo() { Address = location.Address, Type = RelativeMemoryType });
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if(absIndexedAddress.Address > absAddress.Address) {
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location.ArrayIndex = absIndexedAddress.Address - absAddress.Address;
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}
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} else if(absAddress.Type == SnesMemoryType.Register) {
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relativeAddress = absAddress.Address;
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} else {
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relativeAddress = location.Label.GetRelativeAddress(this.CpuType).Address + (location.ArrayIndex ?? 0);
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}
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byte byteValue = relativeAddress >= 0 ? DebugApi.GetMemoryValue(this.RelativeMemoryType, (UInt32)relativeAddress) : (byte)0;
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UInt16 wordValue = relativeAddress >= 0 ? (UInt16)(byteValue | (DebugApi.GetMemoryValue(this.RelativeMemoryType, (UInt32)relativeAddress + 1) << 8)) : (UInt16)0;
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var values = new Dictionary<string, string>() {
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{ "Label", location.Label.Label + (location.ArrayIndex != null ? $"+{location.ArrayIndex.Value}" : "") },
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{ "Address", (relativeAddress >= 0 ? "$" + relativeAddress.ToString("X4") : "n/a") },
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{ "Value", (relativeAddress >= 0 ? $"${byteValue.ToString("X2")} (byte){Environment.NewLine}${wordValue.ToString("X4")} (word)" : "n/a") },
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};
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if(!string.IsNullOrWhiteSpace(location.Label.Comment)) {
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values["Comment"] = location.Label.Comment;
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}
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return values;
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} else if(location.Address >= 0) {
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byte byteValue = DebugApi.GetMemoryValue(this.RelativeMemoryType, (uint)location.Address);
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UInt16 wordValue = (UInt16)(byteValue | (DebugApi.GetMemoryValue(this.RelativeMemoryType, (uint)location.Address + 1) << 8));
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return new Dictionary<string, string>() {
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{ "Address", "$" + location.Address.ToString("X4") },
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{ "Value", $"${byteValue.ToString("X2")} (byte){Environment.NewLine}${wordValue.ToString("X4")} (word)" }
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};
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}
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return null;
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}
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private void GetSymbolByteRange(int lineIndex, out int rangeStart, out int rangeEnd)
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{
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int lineCount = _provider.GetLineCount();
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while(lineIndex < lineCount - 2 && _provider.GetCodeLineData(lineIndex).AbsoluteAddress < 0) {
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//Find the address of the next line with an address
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lineIndex++;
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}
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rangeStart = _provider.GetCodeLineData(lineIndex).AbsoluteAddress;
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if(rangeStart >= 0) {
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while(lineIndex < lineCount - 2 && _provider.GetCodeLineData(lineIndex + 1).AbsoluteAddress < 0) {
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//Find the next line with an address
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lineIndex++;
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}
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rangeEnd = _provider.GetCodeLineData(lineIndex + 1).AbsoluteAddress - 1;
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if(rangeStart < rangeEnd && (rangeEnd - rangeStart) < 500) {
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return;
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}
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}
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rangeStart = 0;
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rangeEnd = Int32.MaxValue;
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}
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}
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}
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