From 54b37b9baef669f1ac70d429b1d4251d2a3a6aa0 Mon Sep 17 00:00:00 2001
From: Colin Senner <colin.senner@gmail.com>
Date: Sun, 12 Jul 2026 23:49:58 -0700
Subject: [PATCH] fixes an issue where you cannot step over int3 instructions
 even with Skip INT3 Stepping enabled

---
 TitanEngine/TitanEngine.Debugger.DebugLoop.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp b/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp
index d11889f..1dad859 100644
--- a/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp
+++ b/TitanEngine/TitanEngine.Debugger.DebugLoop.cpp
@@ -601,6 +601,10 @@ __declspec(dllexport) void TITCALL DebugLoop()
                         ULONG_PTR exceptionAddress = (ULONG_PTR)DBGEvent.u.Exception.ExceptionRecord.ExceptionAddress;
 
                         if(recentlyDeletedBpx.find(exceptionAddress) != recentlyDeletedBpx.end())
+                        unsigned char currentByte = 0xCC;
+                        MemoryReadSafe(dbgProcessInformation.hProcess, (void*)exceptionAddress, &currentByte, 1, nullptr);
+
+                        if(currentByte != 0xCC && recentlyDeletedBpx.find(exceptionAddress) != recentlyDeletedBpx.end())
                         {
                             //breakpoint was recently deleted - handle the stale event gracefully
                             hActiveThread = EngineOpenThread(THREAD_GETSETSUSPEND, false, DBGEvent.dwThreadId);