diff --git a/GPU/Common/VertexDecoderCommon.cpp b/GPU/Common/VertexDecoderCommon.cpp
index 3b8c7a939e..95f4828ca1 100644
--- a/GPU/Common/VertexDecoderCommon.cpp
+++ b/GPU/Common/VertexDecoderCommon.cpp
@@ -521,7 +521,7 @@ void VertexDecoder::Step_NormalS8Skin() const
 void VertexDecoder::Step_NormalS16Skin() const
 {
 	float *normal = (float *)(decoded_ + decFmt.nrmoff);
-	const s16 *sv = (const u16_le*)(ptr_ + nrmoff);
+	const s16 *sv = (const s16_le*)(ptr_ + nrmoff);
 	const float fn[3] = { sv[0] * (1.0f / 32768.0f), sv[1] * (1.0f / 32768.0f), sv[2] * (1.0f / 32768.0f) };
 	Norm3ByMatrix43(normal, fn, skinMatrix);
 }
diff --git a/GPU/Directx9/GPU_DX9.cpp b/GPU/Directx9/GPU_DX9.cpp
index c6424071d4..8b82cb1e70 100644
--- a/GPU/Directx9/GPU_DX9.cpp
+++ b/GPU/Directx9/GPU_DX9.cpp
@@ -1536,10 +1536,13 @@ void DIRECTX9_GPU::ClearCacheNextFrame() {
 
 void DIRECTX9_GPU::Resized() {
 	framebufferManager_.Resized();
+	transformDraw_.Resized();
 }
+
 void DIRECTX9_GPU::ClearShaderCache() {
 	shaderManager_->ClearCache(true);
 }
+
 std::vector<FramebufferInfo> DIRECTX9_GPU::GetFramebufferList() {
 	return framebufferManager_.GetFramebufferList();
 }
diff --git a/GPU/Directx9/TransformPipelineDX9.cpp b/GPU/Directx9/TransformPipelineDX9.cpp
index 877c9667ee..416f3ecfc0 100644
--- a/GPU/Directx9/TransformPipelineDX9.cpp
+++ b/GPU/Directx9/TransformPipelineDX9.cpp
@@ -173,6 +173,9 @@ TransformDrawEngineDX9::TransformDrawEngineDX9()
 		uvScale = new UVScale[MAX_DEFERRED_DRAW_CALLS];
 	}
 	indexGen.Setup(decIndex);
+
+	decJitCache_ = new VertexDecoderJitCache();
+
 	InitDeviceObjects();
 }
 
@@ -195,6 +198,9 @@ TransformDrawEngineDX9::~TransformDrawEngineDX9() {
 		delete iter->second;
 	}
 	delete [] uvScale;
+
+	delete decJitCache_;
+
 }
 
 void TransformDrawEngineDX9::InitDeviceObjects() {
@@ -786,7 +792,7 @@ VertexDecoder *TransformDrawEngineDX9::GetVertexDecoder(u32 vtype) {
 	if (iter != decoderMap_.end())
 		return iter->second;
 	VertexDecoder*dec = new VertexDecoder(); 
-	dec->SetVertexType(vtype, decOptions_);
+	dec->SetVertexType(vtype, decOptions_, decJitCache_);
 	decoderMap_[vtype] = dec;
 	return dec;
 }
@@ -1293,6 +1299,12 @@ rotateVBO:
 		host->GPUNotifyDraw();
 }
 
+void TransformDrawEngineDX9::Resized() {
+	decJitCache_->Clear();
+
+	// ...
+}
+
 bool TransformDrawEngineDX9::TestBoundingBox(void* control_points, int vertexCount, u32 vertType) {
 	// Simplify away bones and morph before proceeding
 
@@ -1367,6 +1379,10 @@ static Vec3f ScreenToDrawing(const Vec3f& coords) {
 	return ret;
 }
 
+bool TransformDrawEngineDX9::IsCodePtrVertexDecoder(const u8 *ptr) const {
+	return decJitCache_->IsInSpace(ptr);
+}
+
 // TODO: This probably is not the best interface.
 bool TransformDrawEngineDX9::GetCurrentSimpleVertices(int count, std::vector<GPUDebugVertex> &vertices, std::vector<u16> &indices) {
 	// This is always for the current vertices.
diff --git a/GPU/Directx9/TransformPipelineDX9.h b/GPU/Directx9/TransformPipelineDX9.h
index 01bf34fbfc..533bcba8bc 100644
--- a/GPU/Directx9/TransformPipelineDX9.h
+++ b/GPU/Directx9/TransformPipelineDX9.h
@@ -128,11 +128,14 @@ public:
 	void DestroyDeviceObjects();
 	void GLLost() {};
 
+	void Resized();  // TODO: Call
+
 	void DecimateTrackedVertexArrays();
 	void ClearTrackedVertexArrays();
 
 	void SetupVertexDecoder(u32 vertType);
 
+	bool IsCodePtrVertexDecoder(const u8 *ptr) const;
 	// This requires a SetupVertexDecoder call first.
 	int EstimatePerVertexCost();
 
@@ -200,6 +203,8 @@ private:
 	ShaderManagerDX9 *shaderManager_;
 	TextureCacheDX9 *textureCache_;
 	FramebufferManagerDX9 *framebufferManager_;
+	VertexDecoderJitCache *decJitCache_;
+
 
 	enum { MAX_DEFERRED_DRAW_CALLS = 128 };
 	DeferredDrawCall drawCalls[MAX_DEFERRED_DRAW_CALLS];