113 lines
2.4 KiB
C#
113 lines
2.4 KiB
C#
using System;
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using System.IO;
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using BizHawk.Emulation.Common;
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namespace BizHawk.Emulation.Cores.Nintendo.NES
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{
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public sealed partial class NES : ICodeDataLogger
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{
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public void SetCDL(ICodeDataLog cdl)
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{
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CDL = cdl;
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if (cdl == null)
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{
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cpu.ReadMemory = ReadMemory;
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cpu.WriteMemory = WriteMemory;
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cpu.PeekMemory = PeekMemory;
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}
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else
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{
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cpu.ReadMemory = ReadMemory_CDL;
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cpu.WriteMemory = WriteMemory;
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cpu.PeekMemory = FetchMemory_CDL;
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}
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}
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public void NewCDL(ICodeDataLog cdl)
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{
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cdl["RAM"] = new byte[_memoryDomains["RAM"].Size];
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if (_memoryDomains.Has("Save RAM"))
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{
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cdl["Save RAM"] = new byte[_memoryDomains["Save RAM"].Size];
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}
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if (_memoryDomains.Has("Battery RAM"))
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{
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cdl["Battery RAM"] = new byte[_memoryDomains["Battery RAM"].Size];
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}
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if (_memoryDomains.Has("Battery RAM"))
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{
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cdl["Battery RAM"] = new byte[_memoryDomains["Battery RAM"].Size];
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}
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cdl.SubType = "NES";
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cdl.SubVer = 0;
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}
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[FeatureNotImplemented]
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public void DisassembleCDL(Stream s, ICodeDataLog cdl)
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{
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}
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private enum CDLog_AddrType
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{
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None,
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ROM,
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MainRAM,
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SaveRAM,
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}
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[Flags]
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private enum CDLog_Flags
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{
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ExecFirst = 0x01,
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ExecOperand = 0x02,
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Data = 0x04
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};
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private struct CDLog_MapResults
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{
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public CDLog_AddrType Type;
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public int Address;
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}
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private delegate CDLog_MapResults MapMemoryDelegate(ushort addr, bool write);
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private MapMemoryDelegate MapMemory;
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private ICodeDataLog CDL;
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private void RunCDL(ushort address, CDLog_Flags flags)
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{
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if (MapMemory != null)
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{
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CDLog_MapResults results = MapMemory(address, false);
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switch (results.Type)
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{
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case CDLog_AddrType.None: break;
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case CDLog_AddrType.MainRAM: CDL["Main RAM"][results.Address] |= (byte)flags; break;
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case CDLog_AddrType.SaveRAM: CDL["Save RAM"][results.Address] |= (byte)flags; break;
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}
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}
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}
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/// <summary>
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/// A wrapper for FetchMemory which inserts CDL logic
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/// </summary>
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private byte FetchMemory_CDL(ushort address)
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{
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RunCDL(address, CDLog_Flags.ExecFirst);
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return PeekMemory(address);
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}
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/// <summary>
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/// A wrapper for ReadMemory which inserts CDL logic
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/// </summary>
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private byte ReadMemory_CDL(ushort address)
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{
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RunCDL(address, CDLog_Flags.Data);
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return ReadMemory(address);
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}
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}
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} |