From efc66742153dd32989729adc19006a351fec47a4 Mon Sep 17 00:00:00 2001
From: CasualPokePlayer <50538166+CasualPokePlayer@users.noreply.github.com>
Date: Sun, 9 Jun 2024 18:06:53 -0700
Subject: [PATCH] delete GenDbgHlp.cs

unused ancient code from pre-wbx days it seems?
---
 .../Consoles/Sega/gpgx64/GenDbgHlp.cs         | 190 ------------------
 1 file changed, 190 deletions(-)
 delete mode 100644 src/BizHawk.Emulation.Cores/Consoles/Sega/gpgx64/GenDbgHlp.cs

diff --git a/src/BizHawk.Emulation.Cores/Consoles/Sega/gpgx64/GenDbgHlp.cs b/src/BizHawk.Emulation.Cores/Consoles/Sega/gpgx64/GenDbgHlp.cs
deleted file mode 100644
index cfeec6d251..0000000000
--- a/src/BizHawk.Emulation.Cores/Consoles/Sega/gpgx64/GenDbgHlp.cs
+++ /dev/null
@@ -1,190 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Runtime.InteropServices;
-using System.IO;
-
-using BizHawk.Common;
-using BizHawk.Common.StringExtensions;
-
-namespace BizHawk.Emulation.Cores.Consoles.Sega.gpgx
-{
-	/*
-	 * how to use:
-	 * 0) get https://code.google.com/p/pdbparse/
-	 * 1) set modulename to the name of the dll file.
-	 * 2) set symbolname to the name of a file that you produced by executing the following command:
-	 *    pdb_print_gvars.py [module pdb file] 0x00000000 > [output file]
-	 * 3) set start to an address (relative to the beginning of the dll) to start scanning
-	 * 4) set length to the byte length of the scan area
-	 * 5) instantiate a GenDbWind, and use it to control the scanner while you manipulate the dll into various configurations.
-	 * 
-	 * ideas for modification:
-	 * 1) unhardcode config parameters and allow modifying them through the interface
-	 * 2) read section sizes and positions from the dll itself instead of the start\length params
-	 * 3) support an ignore list of symbols
-	 */
-
-	public sealed class GenDbgHlp : IDisposable
-	{
-		// config
-		private const string modulename = "libgenplusgx.dll";
-		private const string symbolname = @"D:\encodes\bizhawksrc\genplus-gx\libretro\msvc\Debug\vars.txt";
-		private const int start = 0x0c7d8000 - 0x0c540000;
-		private const int length = 0x01082000;
-
-		private bool disposed => DllBase == IntPtr.Zero;
-
-		public void Dispose()
-		{
-			if (DllBase == IntPtr.Zero) return; // already freed
-			OSTailoredCode.LinkedLibManager.FreeByPtr(DllBase);
-			DllBase = IntPtr.Zero;
-		}
-
-		private IntPtr DllBase;
-
-		private readonly List<Symbol> SymbolsByAddr = new List<Symbol>();
-		private readonly IDictionary<string, Symbol> SymbolsByName = new Dictionary<string, Symbol>();
-
-		private readonly byte[][] data = new byte[10][];
-
-		public void SaveState(int statenum)
-		{
-			if (disposed) throw new ObjectDisposedException(nameof(GenDbgHlp));
-
-			data[statenum] ??= new byte[length];
-
-			Marshal.Copy(DllBase + start, data[statenum], 0, length);
-			Console.WriteLine("State {0} saved", statenum);
-		}
-
-
-		public unsafe void Cmp(int statex, int statey)
-		{
-			if (disposed) throw new ObjectDisposedException(nameof(GenDbgHlp));
-			List<Tuple<int, int>> bads = new List<Tuple<int, int>>();
-
-			byte[] x = data[statex];
-			byte[] y = data[statey];
-
-			if (x == null || y == null)
-			{
-				Console.WriteLine("Missing State!");
-				return;
-			}
-
-			bool inrange = false;
-			int startsec = 0;
-
-			fixed (byte* p0 = &x[0])
-			fixed (byte* p1 = &y[0])
-			{
-				for (int i = 0; i < length; i++)
-				{
-					if (!inrange)
-					{
-						if (p0[i] != p1[i])
-						{
-							startsec = i;
-							inrange = true;
-						}
-					}
-					else
-					{
-						if (p0[i] == p1[i])
-						{
-							bads.Add(new Tuple<int, int>(startsec, i));
-							inrange = false;
-						}
-					}
-				}
-			}
-			if (inrange)
-				bads.Add(new Tuple<int, int>(startsec, length));
-
-			for (int i = 0; i < bads.Count; i++)
-			{
-				IntPtr addr = (IntPtr)(bads[i].Item1 + start);
-				int len = bads[i].Item2 - bads[i].Item1;
-
-				var ss = Find(addr, len);
-				Console.WriteLine("0x{0:X8}[0x{1}]", (int)addr, len);
-				foreach (var sym in ss)
-					Console.WriteLine(sym);
-				Console.WriteLine();
-			}
-			if (bads.Count == 0)
-				Console.WriteLine("Clean!");
-		}
-
-		public GenDbgHlp()
-		{
-			using (StreamReader sr = new StreamReader(symbolname))
-			{
-				string line;
-				while ((line = sr.ReadLine()) != null)
-				{
-					Symbol sym = Symbol.FromString(line);
-					SymbolsByAddr.Add(sym);
-					SymbolsByName.Add(sym.name, sym);
-				}
-				SymbolsByAddr.Sort();
-			}
-			DllBase = OSTailoredCode.LinkedLibManager.LoadOrThrow(modulename);
-		}
-
-		public List<Symbol> Find(IntPtr addr, int length)
-		{
-			if (disposed) throw new ObjectDisposedException(nameof(GenDbgHlp));
-			Symbol min = new Symbol { addr = addr };
-			Symbol max = new Symbol { addr = addr + length };
-
-			int minidx = SymbolsByAddr.BinarySearch(min);
-			if (minidx < 0)
-			{
-				minidx = ~minidx;
-				// inexact matches return the first larger value, so find the next smallset one
-				if (minidx > 0)
-					minidx--;
-			}
-			int maxidx = SymbolsByAddr.BinarySearch(max);
-			if (maxidx < 0)
-			{
-				maxidx = ~maxidx;
-				if (maxidx > 0)
-					maxidx--;
-			}
-			return SymbolsByAddr.GetRange(minidx, maxidx - minidx + 1);
-		}
-
-		public struct Symbol : IComparable<Symbol>
-		{
-			public IntPtr addr;
-			public string section;
-			public string name;
-
-			public static Symbol FromString(string s)
-			{
-				string[] ss = s.Split(',');
-				if (ss.Length != 4)
-					throw new Exception();
-				if (!ss[1].StartsWithOrdinal("0x"))
-					throw new Exception();
-				Symbol ret = new Symbol
-				{
-					addr = (IntPtr)int.Parse(ss[1].Substring(2), System.Globalization.NumberStyles.AllowHexSpecifier),
-					section = ss[3],
-					name = ss[0]
-				};
-				return ret;
-			}
-
-			public int CompareTo(Symbol other)
-			{
-				return (int)this.addr - (int)other.addr;
-			}
-
-			public override string ToString() => $"0x{(int)addr:X8} {name} ({section})";
-		}
-	}
-}