104 lines
2.5 KiB
C#
104 lines
2.5 KiB
C#
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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.Sega.MasterSystem
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{
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partial class SMS
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{
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enum CDLog_AddrType
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{
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None,
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ROM, MainRAM, SaveRAM, CartRAM,
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}
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[Flags]
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public 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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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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delegate CDLog_MapResults MapMemoryDelegate(ushort addr, bool write);
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MapMemoryDelegate MapMemory;
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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.ROM: CDL["ROM"][results.Address] |= (byte)flags; 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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case CDLog_AddrType.CartRAM: CDL["Cart (Volatile) 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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public byte FetchMemory_CDL(ushort address, bool first)
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{
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RunCDL(address, first ? CDLog_Flags.ExecFirst : CDLog_Flags.ExecOperand);
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return ReadMemory(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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public 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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void ICodeDataLogger.SetCDL(CodeDataLog 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.FetchMemory = FetchMemory_StubThunk;
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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.FetchMemory = FetchMemory_CDL;
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}
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}
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void ICodeDataLogger.NewCDL(CodeDataLog cdl)
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{
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cdl["ROM"] = new byte[memoryDomains["ROM"].Size];
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cdl["Main RAM"] = new byte[memoryDomains["Main RAM"].Size];
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if (memoryDomains.Has("Save RAM"))
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cdl["Save RAM"] = new byte[memoryDomains["Save RAM"].Size];
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if (memoryDomains.Has("Cart (Volatile) RAM"))
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cdl["Cart (Volatile) RAM"] = new byte[memoryDomains["Cart (Volatile) RAM"].Size];
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cdl.SubType = "SMS";
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cdl.SubVer = 0;
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}
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//not supported
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void ICodeDataLogger.DisassembleCDL(Stream s, CodeDataLog cdl) { }
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CodeDataLog CDL;
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}
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}
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