diff --git a/src/gb/GB.cpp b/src/gb/GB.cpp
index 8d7137a4..53ccef8e 100644
--- a/src/gb/GB.cpp
+++ b/src/gb/GB.cpp
@@ -2437,7 +2437,7 @@ void gbReset()
   gbTimerOn = false;
 
   if(gbCgbMode) {
-    for (int i = 0; i<0x20; i++)
+    for (i = 0; i<0x20; i++)
       gbPalette[i] = 0x7fff;
 
     // This is just to show that the starting values of the OBJ palettes are different
@@ -2555,11 +2555,11 @@ void gbReset()
     }
   } else {
     if(gbSgbMode) {
-      for(int i = 0; i < 8; i++)
+      for(i = 0; i < 8; i++)
         gbPalette[i] = systemGbPalette[gbPaletteOption*8+i];
 
     }
-    for(int i = 0; i < 8; i++)
+    for(i = 0; i < 8; i++)
       gbPalette[i] = systemGbPalette[gbPaletteOption*8+i];
   }
 
@@ -4079,7 +4079,9 @@ bool gbUpdateSizes()
   }
 
   if(gbRomSize < gbRomSizes[gbRom[0x148]]) {
-    gbRom = (u8 *)realloc(gbRom, gbRomSizes[gbRom[0x148]]);
+    u8 *gbRomNew = (u8 *)realloc(gbRom, gbRomSizes[gbRom[0x148]]);
+    if( !gbRomNew ) { assert( false ); return false; };
+    gbRom = gbRomNew;
     for (int i = gbRomSize; i<gbRomSizes[gbRom[0x148]]; i++)
         gbRom[i] = 0x00; // Not sure if it's 0x00, 0xff or random data...
   }
@@ -4097,7 +4099,9 @@ bool gbUpdateSizes()
       }
       gbRom[0x148]++;
     }
-    gbRom = (u8 *)realloc(gbRom, gbRomSizes[gbRom[0x148]]);
+    u8 *gbRomNew = (u8 *)realloc(gbRom, gbRomSizes[gbRom[0x148]]);
+    if( !gbRomNew ) { assert( false ); return false; };
+    gbRom = gbRomNew;
   }
   gbRomSize = gbRomSizes[gbRom[0x148]];
   gbRomSizeMask = gbRomSizesMasks[gbRom[0x148]];
@@ -4305,36 +4309,36 @@ bool gbUpdateSizes()
   return true;
 }
 
-int gbGetNextEvent (int clockTicks)
+int gbGetNextEvent (int _clockTicks)
 {
   if (register_LCDC & 0x80)
   {
-    if(gbLcdTicks < clockTicks)
-        clockTicks = gbLcdTicks;
+    if(gbLcdTicks < _clockTicks)
+        _clockTicks = gbLcdTicks;
 
-    if(gbLcdTicksDelayed < clockTicks)
-      clockTicks = gbLcdTicksDelayed;
+    if(gbLcdTicksDelayed < _clockTicks)
+      _clockTicks = gbLcdTicksDelayed;
 
-    if(gbLcdLYIncrementTicksDelayed < clockTicks)
-      clockTicks = gbLcdLYIncrementTicksDelayed;
+    if(gbLcdLYIncrementTicksDelayed < _clockTicks)
+      _clockTicks = gbLcdLYIncrementTicksDelayed;
   }
 
-  if(gbLcdLYIncrementTicks < clockTicks)
-    clockTicks = gbLcdLYIncrementTicks;
+  if(gbLcdLYIncrementTicks < _clockTicks)
+    _clockTicks = gbLcdLYIncrementTicks;
 
-  if(gbSerialOn && (gbSerialTicks < clockTicks))
-    clockTicks = gbSerialTicks;
+  if(gbSerialOn && (gbSerialTicks < _clockTicks))
+    _clockTicks = gbSerialTicks;
 
-  if(gbTimerOn && (((gbInternalTimer) & gbTimerMask[gbTimerMode])+1 < clockTicks))
-    clockTicks = ((gbInternalTimer) & gbTimerMask[gbTimerMode])+1;
+  if(gbTimerOn && (((gbInternalTimer) & gbTimerMask[gbTimerMode])+1 < _clockTicks))
+    _clockTicks = ((gbInternalTimer) & gbTimerMask[gbTimerMode])+1;
 
-  //if(soundTicks && (soundTicks < clockTicks))
-  //  clockTicks = soundTicks;
+  //if(soundTicks && (soundTicks < _clockTicks))
+  //  _clockTicks = soundTicks;
 
-  if ((clockTicks<=0) || (gbInterruptWait))
-      clockTicks = 1;
+  if ((_clockTicks<=0) || (gbInterruptWait))
+      _clockTicks = 1;
 
-  return clockTicks;
+  return _clockTicks;
 }
 
 void gbDrawLine()
diff --git a/src/gb/gbSGB.cpp b/src/gb/gbSGB.cpp
index 44f765d9..9fbdcc13 100644
--- a/src/gb/gbSGB.cpp
+++ b/src/gb/gbSGB.cpp
@@ -245,22 +245,22 @@ void gbSgbDrawBorderTile(int x, int y, int tile, int attr)
         else
           xxx = 7 - xx;
 
-        u16 c;
+        u16 cc;
         if (color) {
-          c = gbPalette[palette + color];
+          cc = gbPalette[palette + color];
         } else {
-          c = gbPalette[0];
+          cc = gbPalette[0];
         }
 
         switch(systemColorDepth) {
         case 16:
-          gbSgbDraw16Bit(dest + yyy*(256+2) + xxx, c);
+          gbSgbDraw16Bit(dest + yyy*(256+2) + xxx, cc);
           break;
         case 24:
-          gbSgbDraw24Bit(dest8 + (yyy*256+xxx)*3, c);
+          gbSgbDraw24Bit(dest8 + (yyy*256+xxx)*3, cc);
           break;
         case 32:
-          gbSgbDraw32Bit(dest32 + yyy*(256+1)+xxx, c);
+          gbSgbDraw32Bit(dest32 + yyy*(256+1)+xxx, cc);
           break;
         }
       }
diff --git a/src/gba/GBAinline.h b/src/gba/GBAinline.h
index f065006a..df366ed8 100644
--- a/src/gba/GBAinline.h
+++ b/src/gba/GBAinline.h
@@ -454,7 +454,7 @@ static inline void CPUWriteMemory(u32 address, u32 value)
     }
     goto unwritable;
   case 0x0E:
-    if(!eepromInUse | cpuSramEnabled | cpuFlashEnabled) {
+    if((!eepromInUse) | cpuSramEnabled | cpuFlashEnabled) {
       (*cpuSaveGameFunc)(address, (u8)value);
       break;
     }
@@ -556,7 +556,7 @@ static inline void CPUWriteHalfWord(u32 address, u16 value)
     }
     goto unwritable;
   case 14:
-    if(!eepromInUse | cpuSramEnabled | cpuFlashEnabled) {
+    if((!eepromInUse) | cpuSramEnabled | cpuFlashEnabled) {
       (*cpuSaveGameFunc)(address, (u8)value);
       break;
     }
@@ -692,7 +692,7 @@ static inline void CPUWriteByte(u32 address, u8 b)
     }
     goto unwritable;
   case 14:
-    if (!(saveType == 5) && (!eepromInUse | cpuSramEnabled | cpuFlashEnabled)) {
+    if ((saveType != 5) && ((!eepromInUse) | cpuSramEnabled | cpuFlashEnabled)) {
 
       //if(!cpuEEPROMEnabled && (cpuSramEnabled | cpuFlashEnabled)) {
 
diff --git a/src/gba/bios.cpp b/src/gba/bios.cpp
index 2f52df49..b03162b0 100644
--- a/src/gba/bios.cpp
+++ b/src/gba/bios.cpp
@@ -696,7 +696,7 @@ void BIOS_LZ77UnCompVram()
           int length = (data >> 12) + 3;
           int offset = (data & 0x0FFF);
           u32 windowOffset = dest + byteCount - offset - 1;
-          for(int i = 0; i < length; i++) {
+          for(int i2 = 0; i2 < length; i2++) {
             writeValue |= (CPUReadByte(windowOffset++) << byteShift);
             byteShift += 8;
             byteCount++;
@@ -781,7 +781,7 @@ void BIOS_LZ77UnCompWram()
           int length = (data >> 12) + 3;
           int offset = (data & 0x0FFF);
           u32 windowOffset = dest - offset - 1;
-          for(int i = 0; i < length; i++) {
+          for(int i2 = 0; i2 < length; i2++) {
             CPUWriteByte(dest++, CPUReadByte(windowOffset++));
             len--;
             if(len == 0)
diff --git a/src/win32/VBA.cpp b/src/win32/VBA.cpp
index 010bb87f..e9f9cda9 100644
--- a/src/win32/VBA.cpp
+++ b/src/win32/VBA.cpp
@@ -968,7 +968,7 @@ void systemDrawScreen()
 			  theApp.aviRecorder = NULL;
 			  theApp.aviRecording = false;
 		  }
-		  delete bmp;
+		  delete [] bmp;
 	  }
   }
 
@@ -2141,7 +2141,7 @@ void VBA::updatePriority()
 bool VBA::detectMMX()
 {
   bool support = false;
-  char brand[13];
+  char brand[12]; // not zero terminated
 
   // check for Intel chip
   __try {
diff --git a/src/win32/XAudio2.cpp b/src/win32/XAudio2.cpp
index 2a4013bc..73de71c5 100644
--- a/src/win32/XAudio2.cpp
+++ b/src/win32/XAudio2.cpp
@@ -211,6 +211,7 @@ bool XAudio2_Output::init(long sampleRate)
 		ASSERT( hr == S_OK );
 		float *matrix = NULL;
 		matrix = (float*)malloc( sizeof( float ) * 2 * dd.OutputFormat.Format.nChannels );
+        if( matrix == NULL ) return false;
 		bool matrixAvailable = true;
 		switch( dd.OutputFormat.Format.nChannels ) {
 			case 4: // 4.0