fix some UB

4 files changed, 7 insertions, 4 deletions

diff --git a/src/DMA.cpp b/src/DMA.cpp
index 6877914..d296511 100644
--- a/src/DMA.cpp
+++ b/src/DMA.cpp
@@ -79,6 +79,7 @@ void DMA::Reset()
     Stall = false;
 
     Running = false;
+    Executing = false;
     InProgress = false;
     MRAMBurstCount = 0;
 }
diff --git a/src/NonStupidBitfield.h b/src/NonStupidBitfield.h
index badefaf..a4fe7ec 100644
--- a/src/NonStupidBitfield.h
+++ b/src/NonStupidBitfield.h
@@ -144,10 +144,11 @@ struct NonStupidBitField
     {
         for (u32 i = 0; i < DataLength; i++)
         {
-            u32 idx = __builtin_ctzll(Data[i]);
-            if (Data[i] && idx + i * 64 < Size)
+            if (Data[i])
             {
-                return {*this, i, idx, Data[i] & ~(1ULL << idx)};
+                u32 idx = __builtin_ctzll(Data[i]);
+                if (idx + i * 64 < Size)
+                    return {*this, i, idx, Data[i] & ~(1ULL << idx)};
             }
         }
         return End();
diff --git a/src/frontend/qt_sdl/Config.cpp b/src/frontend/qt_sdl/Config.cpp
index afdaaee..b4d78f7 100644
--- a/src/frontend/qt_sdl/Config.cpp
+++ b/src/frontend/qt_sdl/Config.cpp
@@ -301,7 +301,7 @@ ConfigEntry ConfigFile[] =
     {"AudioInterp", 0, &AudioInterp, 0, false},
     {"AudioBitDepth", 0, &AudioBitDepth, 0, false},
     {"AudioVolume", 0, &AudioVolume, 256, true},
-    {"DSiVolumeSync", 0, &DSiVolumeSync, 0, true},
+    {"DSiVolumeSync", 1, &DSiVolumeSync, false, true},
     {"MicInputType", 0, &MicInputType, 1, false},
     {"MicDevice", 2, &MicDevice, (std::string)"", false},
     {"MicWavPath", 2, &MicWavPath, (std::string)"", false},
diff --git a/src/frontend/qt_sdl/ROMManager.cpp b/src/frontend/qt_sdl/ROMManager.cpp
index a3a911c..3b2b72b 100644
--- a/src/frontend/qt_sdl/ROMManager.cpp
+++ b/src/frontend/qt_sdl/ROMManager.cpp
@@ -451,6 +451,7 @@ void UnloadCheats()
     {
         delete CheatFile;
         CheatFile = nullptr;
+        AREngine::SetCodeFile(nullptr);
     }
 }