diff --git a/pcsx2/CDVD/CDVD.cpp b/pcsx2/CDVD/CDVD.cpp
index f2a68d90b7..e976d7811b 100644
--- a/pcsx2/CDVD/CDVD.cpp
+++ b/pcsx2/CDVD/CDVD.cpp
@@ -44,7 +44,7 @@ static __fi void SetResultSize(u8 size)
 	cdvd.sDataIn&=~0x40;
 }
 
-static void CDVDREAD_INT(int eCycle)
+static void CDVDREAD_INT(u32 eCycle)
 {
 	// Give it an arbitary FAST value. Good for ~5000kb/s in ULE when copying a file from CDVD to HDD
 	// Keep long seeks out though, as games may try to push dmas while seeking. (Tales of the Abyss)
diff --git a/pcsx2/Patch.cpp b/pcsx2/Patch.cpp
index 5ba0bc904c..c9615fa37f 100644
--- a/pcsx2/Patch.cpp
+++ b/pcsx2/Patch.cpp
@@ -224,7 +224,7 @@ int LoadCheatsFromZip(wxString gameCRC, const wxString& cheatsArchiveFilename) {
   {
     wxString name = entry->GetName();
     name.MakeUpper();
-    if (name.Find(gameCRC) == 0 && name.Find(L".PNACH") == name.Length()-6) {
+    if (name.Find(gameCRC) == 0 && name.Find(L".PNACH")+6u == name.Length()) {
       Console.WriteLn(Color_Gray, L"Loading patch '%s' from archive '%s'",
                       entry->GetName().c_str(), cheatsArchiveFilename.c_str());
       wxTextInputStream pnach(zip);
diff --git a/pcsx2/R5900.cpp b/pcsx2/R5900.cpp
index e4c712bac1..fe2e71e7f0 100644
--- a/pcsx2/R5900.cpp
+++ b/pcsx2/R5900.cpp
@@ -558,7 +558,7 @@ void __fastcall eeloadReplaceOSDSYS()
 		cdvdReloadElfInfo();
 
 	// didn't recognize an ELF
-	if (ElfEntry == -1) {
+	if (ElfEntry == 0xFFFFFFFF) {
 		eeGameStarting();
 		return;
 	}
diff --git a/pcsx2/SPR.cpp b/pcsx2/SPR.cpp
index cc59aadb28..9100796ced 100644
--- a/pcsx2/SPR.cpp
+++ b/pcsx2/SPR.cpp
@@ -78,7 +78,7 @@ int  _SPR0chain()
 	pMem = SPRdmaGetAddr(spr0ch.madr, true);
 	if (pMem == NULL) return -1;
 
-	if(spr0ch.madr >= dmacRegs.rbor.ADDR && spr0ch.madr < (dmacRegs.rbor.ADDR + dmacRegs.rbsr.RMSK + 16))
+	if(spr0ch.madr >= dmacRegs.rbor.ADDR && spr0ch.madr < (dmacRegs.rbor.ADDR + dmacRegs.rbsr.RMSK + 16u))
 	{
 			partialqwc = spr0ch.qwc;
 
diff --git a/pcsx2/Vif1_MFIFO.cpp b/pcsx2/Vif1_MFIFO.cpp
index b038e67c58..cec475392e 100644
--- a/pcsx2/Vif1_MFIFO.cpp
+++ b/pcsx2/Vif1_MFIFO.cpp
@@ -116,7 +116,7 @@ static __fi void mfifo_VIF1chain()
 	}
 
 	if (vif1ch.madr >= dmacRegs.rbor.ADDR &&
-	        vif1ch.madr < (dmacRegs.rbor.ADDR + dmacRegs.rbsr.RMSK + 16))
+	        vif1ch.madr < (dmacRegs.rbor.ADDR + dmacRegs.rbsr.RMSK + 16u))
 	{		
 		//if(vif1ch.madr == (dmacRegs.rbor.ADDR + dmacRegs.rbsr.RMSK + 16)) DevCon.Warning("Edge VIF1");
 		
diff --git a/pcsx2/x86/sVU_zerorec.cpp b/pcsx2/x86/sVU_zerorec.cpp
index eeda23fc48..56dbc220be 100644
--- a/pcsx2/x86/sVU_zerorec.cpp
+++ b/pcsx2/x86/sVU_zerorec.cpp
@@ -764,7 +764,7 @@ list<VuInstruction>::iterator VuBaseBlock::GetInstIterAtPc(int instpc)
 {
 	pxAssert(instpc >= 0);
 
-	u32 curpc = startpc;
+	int curpc = startpc;
 	list<VuInstruction>::iterator it;
 	for (it = insts.begin(); it != insts.end(); ++it)
 	{
@@ -785,7 +785,7 @@ void VuBaseBlock::GetInstsAtPc(int instpc, list<VuInstruction*>& listinsts)
 
 	listinsts.clear();
 
-	u32 curpc = startpc;
+	int curpc = startpc;
 	list<VuInstruction>::iterator it;
 	for (it = insts.begin(); it != insts.end(); ++it)
 	{
diff --git a/plugins/zzogl-pg/opengl/ZZoglFlushHack.cpp b/plugins/zzogl-pg/opengl/ZZoglFlushHack.cpp
index b1e311a5d7..354318402a 100644
--- a/plugins/zzogl-pg/opengl/ZZoglFlushHack.cpp
+++ b/plugins/zzogl-pg/opengl/ZZoglFlushHack.cpp
@@ -445,11 +445,11 @@ bool GSC_HauntingGround(const GSFrameInfo& fi, int& skip)
     // Note GSdx seems to use invert somewhere FBMSK. So values were inverted
 	if(skip == 0)
     {
-        if(fi.TME && fi.FPSM == fi.TPSM && fi.TPSM == PSMCT16S && fi.FBMSK == ~(0x03FFF))
+        if(fi.TME && fi.FPSM == fi.TPSM && fi.TPSM == PSMCT16S && ~fi.FBMSK == 0x03FFF)
             skip = 1;
         else if(fi.TME && fi.FBP == 0x3000 && fi.TBP0 == 0x3380)
             skip = 1; // bloom
-        else if(fi.TME && fi.FBP == fi.TBP0 && fi.TBP0 == 0x3000 && fi.FBMSK == ~(0xFFFFFF) &&
+        else if(fi.TME && fi.FBP == fi.TBP0 && fi.TBP0 == 0x3000 && ~fi.FBMSK == 0xFFFFFF &&
                 GABEST_HAS_SHARED_BITS(fi.FBP, fi.FPSM, fi.TBP0, fi.TPSM))
             skip = 1; 
     }
diff --git a/plugins/zzogl-pg/opengl/targets.cpp b/plugins/zzogl-pg/opengl/targets.cpp
index 1d4e78f7f8..8d3dd32f36 100644
--- a/plugins/zzogl-pg/opengl/targets.cpp
+++ b/plugins/zzogl-pg/opengl/targets.cpp
@@ -254,7 +254,7 @@ void CRangeManager::Insert(int start, int end)
 
 		assert(imid < (int)ranges.size());
 
-		if ((ranges[imid].end <= end) && ((imid == ranges.size() - 1) || (ranges[imid+1].start > end)))
+		if ((ranges[imid].end <= end) && ((imid == (int)ranges.size() - 1) || (ranges[imid+1].start > end)))
 		{
 			imin = imid;
 			break;