diff --git a/FDTD/engine_sse.h b/FDTD/engine_sse.h
index 17d74b0..5141379 100644
--- a/FDTD/engine_sse.h
+++ b/FDTD/engine_sse.h
@@ -18,13 +18,13 @@
 #ifndef ENGINE_SSE_H
 #define ENGINE_SSE_H
 
-#include "operator.h"
 #include "engine.h"
+#include "operator_sse.h"
 
 class Engine_sse : public Engine
 {
 public:
-	static Engine_sse* New(const Operator* op);
+	static Engine_sse* New(const Operator_sse* op);
 	virtual ~Engine_sse();
 
 	virtual void Init();
@@ -39,8 +39,8 @@ public:
 	inline virtual FDTD_FLOAT GetCurr( unsigned int n, unsigned int x, unsigned int y, unsigned int z ) const { return curr_[n][x][y][z/4].f[z%4]; }
 
 protected:
-	Engine_sse(const Operator* op);
-	const Operator* Op;
+	Engine_sse(const Operator_sse* op);
+	const Operator_sse* Op;
 
 	virtual void UpdateVoltages();
 	virtual void ApplyVoltageExcite();
diff --git a/FDTD/operator.cpp b/FDTD/operator.cpp
index 546a02b..8314cb6 100644
--- a/FDTD/operator.cpp
+++ b/FDTD/operator.cpp
@@ -47,12 +47,8 @@ void Operator::Init()
 	E_Exc_dir=NULL;
 	vv=NULL;
 	vi=NULL;
-	vv_=NULL;
-	vi_=NULL;
 	iv=NULL;
 	ii=NULL;
-	iv_=NULL;
-	ii_=NULL;
 	for (int n=0;n<3;++n)
 	{
 		discLines[n]=NULL;
@@ -79,12 +75,8 @@ void Operator::Reset()
 	delete[] E_Exc_amp;
 	Delete_N_3DArray(vv,numLines);
 	Delete_N_3DArray(vi,numLines);
-	Delete_N_3DArray_v4sf(vv_,numLines);
-	Delete_N_3DArray_v4sf(vi_,numLines);
 	Delete_N_3DArray(iv,numLines);
 	Delete_N_3DArray(ii,numLines);
-	Delete_N_3DArray_v4sf(iv_,numLines);
-	Delete_N_3DArray_v4sf(ii_,numLines);
 	for (int n=0;n<3;++n)
 	{
 		delete[] discLines[n];
@@ -510,20 +502,12 @@ void Operator::InitOperator()
 {
 	Delete_N_3DArray(vv,numLines);
 	Delete_N_3DArray(vi,numLines);
-	Delete_N_3DArray_v4sf(vv_,numLines);
-	Delete_N_3DArray_v4sf(vi_,numLines);
 	Delete_N_3DArray(iv,numLines);
 	Delete_N_3DArray(ii,numLines);
-	Delete_N_3DArray_v4sf(iv_,numLines);
-	Delete_N_3DArray_v4sf(ii_,numLines);
 	vv = Create_N_3DArray(numLines);
 	vi = Create_N_3DArray(numLines);
-	vv_ = Create_N_3DArray_v4sf(numLines);
-	vi_ = Create_N_3DArray_v4sf(numLines);
 	iv = Create_N_3DArray(numLines);
 	ii = Create_N_3DArray(numLines);
-	iv_ = Create_N_3DArray_v4sf(numLines);
-	ii_ = Create_N_3DArray_v4sf(numLines);
 }
 
 inline void Operator::Calc_ECOperatorPos(int n, unsigned int* pos)
@@ -577,27 +561,6 @@ int Operator::CalcECOperator()
 	if (CalcEFieldExcitation()==false) return -1;
 	CalcPEC();
 
-
-	// copy operator to aligned memory (only for sse engine)
-	// FIXME this is really inefficient!
-	for (int n=0;n<3;++n)
-	{
-		for (pos[0]=0;pos[0]<numLines[0];++pos[0])
-		{
-			for (pos[1]=0;pos[1]<numLines[1];++pos[1])
-			{
-				for (pos[2]=0;pos[2]<numLines[2];++pos[2])
-				{
-					vv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vv[n][pos[0]][pos[1]][pos[2]];
-					vi_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vi[n][pos[0]][pos[1]][pos[2]];
-					iv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = iv[n][pos[0]][pos[1]][pos[2]];
-					ii_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = ii[n][pos[0]][pos[1]][pos[2]];
-				}
-			}
-		}
-	}
-
-
 	return 0;
 }
 
diff --git a/FDTD/operator.h b/FDTD/operator.h
index 8f2d899..ee1a9b4 100644
--- a/FDTD/operator.h
+++ b/FDTD/operator.h
@@ -24,21 +24,6 @@
 
 #define FDTD_FLOAT float
 
-
-#if __SIZEOF_FLOAT__ != 4
-	#error wrong size of float
-#endif
-
-typedef float v4sf __attribute__ ((vector_size (16))); // vector of four single floats
-
-union f4vector
-{
-  v4sf v;
-  float f[4];
-};
-
-
-
 //! Abstract base-class for the FDTD-operator
 class Operator
 {
@@ -145,10 +130,6 @@ public:
 	FDTD_FLOAT**** vi; //calc new voltage from old current
 	FDTD_FLOAT**** ii; //calc new current from old current
 	FDTD_FLOAT**** iv; //calc new current from old voltage
-	f4vector**** vv_; //calc new voltage from old voltage
-	f4vector**** vi_; //calc new voltage from old current
-	f4vector**** iv_; //calc new current from old current
-	f4vector**** ii_; //calc new current from old voltage
 
 	//Excitation time-signal
 	unsigned int ExciteLength;
diff --git a/FDTD/operator_sse.cpp b/FDTD/operator_sse.cpp
new file mode 100644
index 0000000..3846d53
--- /dev/null
+++ b/FDTD/operator_sse.cpp
@@ -0,0 +1,119 @@
+/*
+*	Copyright (C) 2010 Sebastian Held (Sebastian.Held@gmx.de)
+*
+*	This program is free software: you can redistribute it and/or modify
+*	it under the terms of the GNU General Public License as published by
+*	the Free Software Foundation, either version 3 of the License, or
+*	(at your option) any later version.
+*
+*	This program is distributed in the hope that it will be useful,
+*	but WITHOUT ANY WARRANTY; without even the implied warranty of
+*	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*	GNU General Public License for more details.
+*
+*	You should have received a copy of the GNU General Public License
+*	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "operator_sse.h"
+#include "tools/array_ops.h"
+
+Operator_sse* Operator_sse::New()
+{
+	Operator_sse* op = new Operator_sse();
+	op->Init();
+	return op;
+}
+
+Operator_sse::Operator_sse() : Operator()
+{
+}
+
+Operator_sse::~Operator_sse()
+{
+	Reset();
+}
+
+void Operator_sse::Init()
+{
+	Operator::Init();
+	vv_ = 0;
+	vi_ = 0;
+	iv_ = 0;
+	ii_ = 0;
+}
+
+void Operator_sse::Reset()
+{
+	Delete_N_3DArray_v4sf(vv_,numLines);
+	Delete_N_3DArray_v4sf(vi_,numLines);
+	Delete_N_3DArray_v4sf(iv_,numLines);
+	Delete_N_3DArray_v4sf(ii_,numLines);
+	Operator::Reset();
+	Init(); // FIXME this calls Operator::Init() twice...
+}
+
+void Operator_sse::InitOperator()
+{
+	Operator::InitOperator();
+	Delete_N_3DArray_v4sf(vv_,numLines);
+	Delete_N_3DArray_v4sf(vi_,numLines);
+	Delete_N_3DArray_v4sf(iv_,numLines);
+	Delete_N_3DArray_v4sf(ii_,numLines);
+	vv_ = Create_N_3DArray_v4sf(numLines);
+	vi_ = Create_N_3DArray_v4sf(numLines);
+	iv_ = Create_N_3DArray_v4sf(numLines);
+	ii_ = Create_N_3DArray_v4sf(numLines);
+}
+
+int Operator_sse::CalcECOperator()
+{
+	Operator::CalcECOperator();
+
+	// copy operator to aligned memory
+	// FIXME this is really inefficient!
+	unsigned int pos[3];
+	for (int n=0;n<3;++n)
+	{
+		for (pos[0]=0;pos[0]<numLines[0];++pos[0])
+		{
+			for (pos[1]=0;pos[1]<numLines[1];++pos[1])
+			{
+				for (pos[2]=0;pos[2]<numLines[2];++pos[2])
+				{
+					vv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vv[n][pos[0]][pos[1]][pos[2]];
+					vi_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vi[n][pos[0]][pos[1]][pos[2]];
+					iv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = iv[n][pos[0]][pos[1]][pos[2]];
+					ii_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = ii[n][pos[0]][pos[1]][pos[2]];
+				}
+			}
+		}
+	}
+
+	return 0;
+}
+
+void Operator_sse::ApplyMagneticBC(bool* dirs)
+{
+	Operator::ApplyMagneticBC(dirs);
+
+	// copy operator to aligned memory
+	// FIXME this is really inefficient!
+	unsigned int pos[3];
+	for (int n=0;n<3;++n)
+	{
+		for (pos[0]=0;pos[0]<numLines[0];++pos[0])
+		{
+			for (pos[1]=0;pos[1]<numLines[1];++pos[1])
+			{
+				for (pos[2]=0;pos[2]<numLines[2];++pos[2])
+				{
+					vv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vv[n][pos[0]][pos[1]][pos[2]];
+					vi_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = vi[n][pos[0]][pos[1]][pos[2]];
+					iv_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = iv[n][pos[0]][pos[1]][pos[2]];
+					ii_[n][pos[0]][pos[1]][pos[2]/4].f[pos[2]%4] = ii[n][pos[0]][pos[1]][pos[2]];
+				}
+			}
+		}
+	}
+}
diff --git a/FDTD/operator_sse.h b/FDTD/operator_sse.h
new file mode 100644
index 0000000..97937d7
--- /dev/null
+++ b/FDTD/operator_sse.h
@@ -0,0 +1,51 @@
+/*
+*	Copyright (C) 2010 Sebastian Held (Sebastian.Held@gmx.de)
+*
+*	This program is free software: you can redistribute it and/or modify
+*	it under the terms of the GNU General Public License as published by
+*	the Free Software Foundation, either version 3 of the License, or
+*	(at your option) any later version.
+*
+*	This program is distributed in the hope that it will be useful,
+*	but WITHOUT ANY WARRANTY; without even the implied warranty of
+*	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*	GNU General Public License for more details.
+*
+*	You should have received a copy of the GNU General Public License
+*	along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef OPERATOR_SSE_H
+#define OPERATOR_SSE_H
+
+#include "operator.h"
+#include "tools/array_ops.h"
+
+class Operator_sse : public Operator
+{
+public:
+	//! Create a new operator
+	static Operator_sse* New();
+	virtual ~Operator_sse();
+
+	virtual int CalcECOperator();
+
+	virtual void ApplyMagneticBC(bool* dirs);
+
+protected:
+	//! use New() for creating a new Operator
+	Operator_sse();
+
+	virtual void Init();
+	virtual void Reset();
+	virtual void InitOperator();
+
+	// engine/post-proc needs access
+public:
+	f4vector**** vv_; //calc new voltage from old voltage
+	f4vector**** vi_; //calc new voltage from old current
+	f4vector**** iv_; //calc new current from old current
+	f4vector**** ii_; //calc new current from old voltage
+};
+
+#endif // OPERATOR_SSE_H
diff --git a/openems.cpp b/openems.cpp
index e908fdd..6fca5e4 100644
--- a/openems.cpp
+++ b/openems.cpp
@@ -254,6 +254,10 @@ int openEMS::SetupFDTD(const char* file)
 		FDTD_Op = Operator_Cylinder::New();
 		CSX.SetCoordInputType(1); //tell CSX to use cylinder-coords
 	}
+	else if (m_engine == EngineType_SSE)
+	{
+		FDTD_Op = Operator_sse::New();
+	}
 	else
 	{
 		FDTD_Op = Operator::New();
@@ -295,7 +299,7 @@ int openEMS::SetupFDTD(const char* file)
 			FDTD_Eng = Engine_Multithread::New(FDTD_Op,m_engine_numThreads);
 			break;
 		case EngineType_SSE:
-			FDTD_Eng = Engine_sse::New(FDTD_Op);
+			FDTD_Eng = Engine_sse::New(dynamic_cast<Operator_sse*>(FDTD_Op));
 			break;
 		default:
 			FDTD_Eng = Engine::New(FDTD_Op);
diff --git a/tools/array_ops.h b/tools/array_ops.h
index 24cfec2..e3307d4 100644
--- a/tools/array_ops.h
+++ b/tools/array_ops.h
@@ -18,6 +18,19 @@
 #ifndef ARRAY_OPS_H
 #define ARRAY_OPS_H
 
+#if __SIZEOF_FLOAT__ != 4
+	#error wrong size of float
+#endif
+
+typedef float v4sf __attribute__ ((vector_size (16))); // vector of four single floats
+
+union f4vector
+{
+  v4sf v;
+  float f[4];
+};
+
+
 #include "../FDTD/operator.h"
 
 FDTD_FLOAT*** Create3DArray(const unsigned int* numLines);