diff --git a/source/frontends/sdl/imgui/sdlimguiframe.cpp b/source/frontends/sdl/imgui/sdlimguiframe.cpp
index 157a7edb..b4b2b9f4 100644
--- a/source/frontends/sdl/imgui/sdlimguiframe.cpp
+++ b/source/frontends/sdl/imgui/sdlimguiframe.cpp
@@ -190,4 +190,10 @@ namespace sa2
     SDLFrame::ProcessSingleEvent(event, quit);
   }
 
+  void SDLImGuiFrame::ResetSpeed()
+  {
+    SDLFrame::ResetSpeed();
+    mySettings.resetDebuggerCycles();
+  }
+
 }
diff --git a/source/frontends/sdl/imgui/sdlimguiframe.h b/source/frontends/sdl/imgui/sdlimguiframe.h
index 5a8de7b4..91be0a33 100644
--- a/source/frontends/sdl/imgui/sdlimguiframe.h
+++ b/source/frontends/sdl/imgui/sdlimguiframe.h
@@ -22,6 +22,8 @@ namespace sa2
     void UpdateTexture() override;
     void RenderPresent() override;
 
+    void ResetSpeed() override;
+
   protected:
 
     void ProcessSingleEvent(const SDL_Event & event, bool & quit) override;
diff --git a/source/frontends/sdl/imgui/sdlsettings.cpp b/source/frontends/sdl/imgui/sdlsettings.cpp
index 6d601ac2..e6036264 100644
--- a/source/frontends/sdl/imgui/sdlsettings.cpp
+++ b/source/frontends/sdl/imgui/sdlsettings.cpp
@@ -755,7 +755,7 @@ namespace sa2
   void ImGuiSettings::drawDisassemblyTable(SDLFrame * frame)
   {
     const ImGuiTableFlags flags = ImGuiTableFlags_RowBg | ImGuiTableFlags_SizingStretchProp | ImGuiTableFlags_BordersOuter | ImGuiTableFlags_ScrollY;
-    if (ImGui::BeginTable("Disassembly", 9, flags))
+    if (ImGui::BeginTable("Disassembly", 10, flags))
     {
       ImGui::PushStyleCompact();
       // weigths proportional to column width (including header)
@@ -769,6 +769,7 @@ namespace sa2
       ImGui::TableSetupColumn("Value", 0, 6);
       ImGui::TableSetupColumn("Immediate", 0, 9);
       ImGui::TableSetupColumn("Branch", 0, 6);
+      ImGui::TableSetupColumn("Cycles", 0, 6);
       ImGui::TableHeadersRow();
 
       ImGuiListClipper clipper;
@@ -882,6 +883,15 @@ namespace sa2
             ImGui::TextUnformatted(line.sBranch);
           }
 
+          ImGui::TableNextColumn();
+          if (g_nAppMode == MODE_DEBUG)
+          {
+            if (myAddressCycles.find(nAddress) != myAddressCycles.end())
+            {
+              ImGui::Text("%d", myAddressCycles[nAddress]);
+            }
+          }
+
           nAddress += line.nOpbyte;
           ImGui::PopID();
         }
@@ -949,8 +959,16 @@ namespace sa2
     }
   }
 
+  void ImGuiSettings::resetDebuggerCycles()
+  {
+    myAddressCycles.clear();
+    myBaseDebuggerCycles = g_nCumulativeCycles;
+  }
+
   void ImGuiSettings::showDebugger(SDLFrame * frame)
   {
+    myAddressCycles[regs.pc] = g_nCumulativeCycles - myBaseDebuggerCycles;
+
     if (ImGui::Begin("Debugger", &myShowDebugger))
     {
       ImGui::BeginChild("Console", ImVec2(0, -ImGui::GetFrameHeightWithSpacing()));
diff --git a/source/frontends/sdl/imgui/sdlsettings.h b/source/frontends/sdl/imgui/sdlsettings.h
index 070c8810..55983672 100644
--- a/source/frontends/sdl/imgui/sdlsettings.h
+++ b/source/frontends/sdl/imgui/sdlsettings.h
@@ -15,6 +15,7 @@ namespace sa2
   public:
     void show(SDLFrame* frame);
     float drawMenuBar(SDLFrame* frame);
+    void resetDebuggerCycles();
 
     bool windowed = false;
 
@@ -32,6 +33,9 @@ namespace sa2
     int mySpeakerVolume;
     int myMockingboardVolume;
 
+    uint64_t myBaseDebuggerCycles;
+    std::unordered_map<DWORD, uint64_t> myAddressCycles;
+
     MemoryEditor myMainMemoryEditor;
     MemoryEditor myAuxMemoryEditor;
 
diff --git a/source/frontends/sdl/sdlframe.h b/source/frontends/sdl/sdlframe.h
index f80f7340..90f463b1 100644
--- a/source/frontends/sdl/sdlframe.h
+++ b/source/frontends/sdl/sdlframe.h
@@ -30,7 +30,7 @@ namespace sa2
     void Execute(const DWORD uCycles);
     void ExecuteOneFrame(const size_t msNextFrame);
     void ChangeMode(const AppMode_e mode);
-    void ResetSpeed();
+    virtual void ResetSpeed();
 
     virtual void UpdateTexture() = 0;
     virtual void RenderPresent() = 0;