From 3462c000e0c13d4153ee6547f9a5cd3573e04229 Mon Sep 17 00:00:00 2001
From: "Mr. eXoDia" <mr.exodia.tpodt@gmail.com>
Date: Wed, 4 Feb 2015 01:16:18 +0100
Subject: [PATCH] fixed a bug with resetting hardware breakpoints when they are
 deleted inside the handler (thanks to Demonic Sword!)

---
 .../TitanEngine.Debugger.DebugLoop.cpp        | 48 +++++++++++--------
 1 file changed, 28 insertions(+), 20 deletions(-)

diff --git a/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp b/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp
index 2d85a66..aa3430e 100644
--- a/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp
+++ b/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp
@@ -789,11 +789,13 @@ __declspec(dllexport) void TITCALL DebugLoop()
                             {
 
                             }
-                            RtlZeroMemory(&DebugRegisterX, sizeof HARDWARE_DATA);
-                            RtlMoveMemory(&DebugRegisterX, &DebugRegister[0], sizeof HARDWARE_DATA);
-                            DeleteHardwareBreakPoint(UE_DR0);
-                            DebugRegisterXId = UE_DR0;
-                            ResetHwBPX = true;
+                            if(DebugRegister[0].DrxEnabled)
+                            {
+                                memcpy(&DebugRegisterX, &DebugRegister[0], sizeof(HARDWARE_DATA));
+                                DebugRegisterXId = UE_DR0;
+                                DeleteHardwareBreakPoint(UE_DR0);
+                                ResetHwBPX = true;
+                            }
                         }
                         else
                         {
@@ -816,11 +818,13 @@ __declspec(dllexport) void TITCALL DebugLoop()
                             {
 
                             }
-                            RtlZeroMemory(&DebugRegisterX, sizeof HARDWARE_DATA);
-                            RtlMoveMemory(&DebugRegisterX, &DebugRegister[1], sizeof HARDWARE_DATA);
-                            DeleteHardwareBreakPoint(UE_DR1);
-                            DebugRegisterXId = UE_DR1;
-                            ResetHwBPX = true;
+                            if(DebugRegister[1].DrxEnabled)
+                            {
+                                memcpy(&DebugRegisterX, &DebugRegister[1], sizeof(HARDWARE_DATA));
+                                DebugRegisterXId = UE_DR1;
+                                DeleteHardwareBreakPoint(UE_DR1);
+                                ResetHwBPX = true;
+                            }
                         }
                         else
                         {
@@ -843,11 +847,13 @@ __declspec(dllexport) void TITCALL DebugLoop()
                             {
 
                             }
-                            RtlZeroMemory(&DebugRegisterX, sizeof HARDWARE_DATA);
-                            RtlMoveMemory(&DebugRegisterX, &DebugRegister[2], sizeof HARDWARE_DATA);
-                            DeleteHardwareBreakPoint(UE_DR2);
-                            DebugRegisterXId = UE_DR2;
-                            ResetHwBPX = true;
+                            if(DebugRegister[2].DrxEnabled)
+                            {
+                                memcpy(&DebugRegisterX, &DebugRegister[2], sizeof(HARDWARE_DATA));
+                                DebugRegisterXId = UE_DR2;
+                                DeleteHardwareBreakPoint(UE_DR2);
+                                ResetHwBPX = true;
+                            }
                         }
                         else
                         {
@@ -870,11 +876,13 @@ __declspec(dllexport) void TITCALL DebugLoop()
                             {
 
                             }
-                            RtlZeroMemory(&DebugRegisterX, sizeof HARDWARE_DATA);
-                            RtlMoveMemory(&DebugRegisterX, &DebugRegister[3], sizeof HARDWARE_DATA);
-                            DeleteHardwareBreakPoint(UE_DR3);
-                            DebugRegisterXId = UE_DR3;
-                            ResetHwBPX = true;
+                            if(DebugRegister[3].DrxEnabled)
+                            {
+                                memcpy(&DebugRegisterX, &DebugRegister[3], sizeof(HARDWARE_DATA));
+                                DebugRegisterXId = UE_DR3;
+                                DeleteHardwareBreakPoint(UE_DR3);
+                                ResetHwBPX = true;
+                            }
                         }
                         else
                         {