Binary Operators

svn path=/trunk/externals/tb/; revision=1899

20 files changed, 2606 insertions, 1 deletions

diff --git a/sc4pd/source/absdif.cpp b/sc4pd/source/absdif.cpp
new file mode 100644
index 0000000..34f41db
--- /dev/null
+++ b/sc4pd/source/absdif.cpp
@@ -0,0 +1,137 @@
+/* sc4pd 
+   absdif, absdif~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_absdif (float a, float b)
+{
+    float f=a-b;
+    return fabsf(f);
+}
+
+
+/* ------------------------ absdif~ -----------------------------*/
+
+class absdif_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(absdif_ar,flext_dsp);
+
+public:
+    absdif_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("absdif~",absdif_ar);
+
+absdif_ar::absdif_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void absdif_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_absdif( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ absdif ------------------------------*/
+
+class absdif_kr
+    :public flext_base
+{
+    FLEXT_HEADER(absdif_kr,flext_base);
+
+public:
+    absdif_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("absdif",absdif_kr);
+
+absdif_kr::absdif_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void absdif_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_absdif(f,b));
+}
+
+void absdif_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/amclip.cpp b/sc4pd/source/amclip.cpp
new file mode 100644
index 0000000..9d4a936
--- /dev/null
+++ b/sc4pd/source/amclip.cpp
@@ -0,0 +1,133 @@
+/* sc4pd 
+   amclip, amclip(~)
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Keith Rowe & Toshimaru Nakamura: Weather Sky
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+/* ------------------------ amclip~ -----------------------------*/
+
+class amclip_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(amclip_ar,flext_dsp);
+
+public:
+    amclip_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("amclip~",amclip_ar);
+
+amclip_ar::amclip_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void amclip_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_amclip( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ amclip ------------------------------*/
+
+class amclip_kr
+    :public flext_base
+{
+    FLEXT_HEADER(amclip_kr,flext_base);
+
+public:
+    amclip_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("amclip",amclip_kr);
+
+amclip_kr::amclip_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void amclip_kr::m_perform(float f)
+{
+    ToOutFloat(0,f*b);
+}
+
+void amclip_kr::m_set(float f)
+{
+    if (f>0)
+	b=f;
+    else 
+	b=0;
+}
diff --git a/sc4pd/source/difsqr.cpp b/sc4pd/source/difsqr.cpp
new file mode 100644
index 0000000..823f266
--- /dev/null
+++ b/sc4pd/source/difsqr.cpp
@@ -0,0 +1,136 @@
+/* sc4pd 
+   difsqr, difsqr~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_difsqr (float a, float b)
+{
+    return a*a-b*b;
+}
+
+
+/* ------------------------ difsqr~ -----------------------------*/
+
+class difsqr_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(difsqr_ar,flext_dsp);
+
+public:
+    difsqr_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("difsqr~",difsqr_ar);
+
+difsqr_ar::difsqr_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void difsqr_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_difsqr( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ difsqr ------------------------------*/
+
+class difsqr_kr
+    :public flext_base
+{
+    FLEXT_HEADER(difsqr_kr,flext_base);
+
+public:
+    difsqr_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("difsqr",difsqr_kr);
+
+difsqr_kr::difsqr_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void difsqr_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_difsqr(f,b));
+}
+
+void difsqr_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/excess.cpp b/sc4pd/source/excess.cpp
new file mode 100644
index 0000000..00f8666
--- /dev/null
+++ b/sc4pd/source/excess.cpp
@@ -0,0 +1,130 @@
+/* sc4pd 
+   excess, excess~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Keith Rowe & Toshimaru Nakamura: Weather Sky
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+/* ------------------------ excess~ -----------------------------*/
+
+class excess_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(excess_ar,flext_dsp);
+
+public:
+    excess_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("excess~",excess_ar);
+
+excess_ar::excess_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void excess_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_excess( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ excess ------------------------------*/
+
+class excess_kr
+    :public flext_base
+{
+    FLEXT_HEADER(excess_kr,flext_base);
+
+public:
+    excess_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("excess",excess_kr);
+
+excess_kr::excess_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void excess_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_excess(f,b));
+}
+
+void excess_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/hypot.cpp b/sc4pd/source/hypot.cpp
new file mode 100644
index 0000000..b096e48
--- /dev/null
+++ b/sc4pd/source/hypot.cpp
@@ -0,0 +1,130 @@
+/* sc4pd 
+   hypot, hypot~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Keith Rowe & Toshimaru Nakamura: Weather Sky
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+/* ------------------------ hypot~ -----------------------------*/
+
+class hypot_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(hypot_ar,flext_dsp);
+
+public:
+    hypot_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("hypot~",hypot_ar);
+
+hypot_ar::hypot_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void hypot_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = hypot( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ hypot ------------------------------*/
+
+class hypot_kr
+    :public flext_base
+{
+    FLEXT_HEADER(hypot_kr,flext_base);
+
+public:
+    hypot_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("hypot",hypot_kr);
+
+hypot_kr::hypot_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void hypot_kr::m_perform(float f)
+{
+    ToOutFloat(0,hypot(f,b));
+}
+
+void hypot_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/main.cpp b/sc4pd/source/main.cpp
index 9f2287a..df430f9 100644
--- a/sc4pd/source/main.cpp
+++ b/sc4pd/source/main.cpp
@@ -58,7 +58,12 @@ void sc4pd_library_setup()
 	 "TExpRand(~), IRand(~), TIRand(~),\n          CoinGate, "
 	 "LinRand(~), NRand(~), ExpRand(~), LFClipNoise(~),\n"
 	 "          LFNoise0(~), LFNoise1(~), LFNoise2(~), Logistic(~), "
-	 "Latoocarfian(~), LinCong(~)\n");
+	 "Latoocarfian(~),\n"
+	 "          LinCong(~), amclip(~), scaleneg(~), excess(~), hypot(~), "
+	 "ring1(~),\n"
+	 "          ring2(~), ring3(~), ring4(~), difsqr(~), sumsqr(~)\n"
+	 "sqrdif(~), sqrsum(~),\n"
+	 "          absdif(~)");
 
     //initialize objects
     FLEXT_DSP_SETUP(Dust_ar);
@@ -140,6 +145,45 @@ void sc4pd_library_setup()
 
     FLEXT_DSP_SETUP(LinCong_ar);
     FLEXT_SETUP(LinCong_kr);
+
+    FLEXT_DSP_SETUP(amclip_ar);
+    FLEXT_SETUP(amclip_kr);
+
+    FLEXT_DSP_SETUP(scaleneg_ar);
+    FLEXT_SETUP(scaleneg_kr);
+
+    FLEXT_DSP_SETUP(excess_ar);
+    FLEXT_SETUP(excess_kr);
+
+    FLEXT_DSP_SETUP(hypot_ar);
+    FLEXT_SETUP(hypot_kr);
+
+    FLEXT_DSP_SETUP(ring1_ar);
+    FLEXT_SETUP(ring1_kr);
+
+    FLEXT_DSP_SETUP(ring2_ar);
+    FLEXT_SETUP(ring2_kr);
+
+    FLEXT_DSP_SETUP(ring3_ar);
+    FLEXT_SETUP(ring3_kr);
+
+    FLEXT_DSP_SETUP(ring4_ar);
+    FLEXT_SETUP(ring4_kr);
+
+    FLEXT_DSP_SETUP(difsqr_ar);
+    FLEXT_SETUP(difsqr_kr);
+
+    FLEXT_DSP_SETUP(sumsqr_ar);
+    FLEXT_SETUP(sumsqr_kr);
+
+    FLEXT_DSP_SETUP(sqrsum_ar);
+    FLEXT_SETUP(sqrsum_kr);
+
+    FLEXT_DSP_SETUP(sqrdif_ar);
+    FLEXT_SETUP(sqrdif_kr);
+
+    FLEXT_DSP_SETUP(absdif_ar);
+    FLEXT_SETUP(absdif_kr);
 }
 
 FLEXT_LIB_SETUP(sc4pd,sc4pd_library_setup);
diff --git a/sc4pd/source/ring1.cpp b/sc4pd/source/ring1.cpp
new file mode 100644
index 0000000..b9aee15
--- /dev/null
+++ b/sc4pd/source/ring1.cpp
@@ -0,0 +1,136 @@
+/* sc4pd 
+   ring1, ring1~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_ring1 (float a, float b)
+{
+    return a*b+a;
+}
+
+
+/* ------------------------ ring1~ -----------------------------*/
+
+class ring1_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(ring1_ar,flext_dsp);
+
+public:
+    ring1_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("ring1~",ring1_ar);
+
+ring1_ar::ring1_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void ring1_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_ring1( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ ring1 ------------------------------*/
+
+class ring1_kr
+    :public flext_base
+{
+    FLEXT_HEADER(ring1_kr,flext_base);
+
+public:
+    ring1_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("ring1",ring1_kr);
+
+ring1_kr::ring1_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void ring1_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_ring1(f,b));
+}
+
+void ring1_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/ring1.cpp~ b/sc4pd/source/ring1.cpp~
new file mode 100644
index 0000000..00f8666
--- /dev/null
+++ b/sc4pd/source/ring1.cpp~
@@ -0,0 +1,130 @@
+/* sc4pd 
+   excess, excess~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Keith Rowe & Toshimaru Nakamura: Weather Sky
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+/* ------------------------ excess~ -----------------------------*/
+
+class excess_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(excess_ar,flext_dsp);
+
+public:
+    excess_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("excess~",excess_ar);
+
+excess_ar::excess_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void excess_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_excess( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ excess ------------------------------*/
+
+class excess_kr
+    :public flext_base
+{
+    FLEXT_HEADER(excess_kr,flext_base);
+
+public:
+    excess_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("excess",excess_kr);
+
+excess_kr::excess_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void excess_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_excess(f,b));
+}
+
+void excess_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/ring2.cpp b/sc4pd/source/ring2.cpp
new file mode 100644
index 0000000..02e9a18
--- /dev/null
+++ b/sc4pd/source/ring2.cpp
@@ -0,0 +1,136 @@
+/* sc4pd 
+   ring2, ring2~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_ring2 (float a, float b)
+{
+    return a*b+a+b;
+}
+
+
+/* ------------------------ ring2~ -----------------------------*/
+
+class ring2_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(ring2_ar,flext_dsp);
+
+public:
+    ring2_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("ring2~",ring2_ar);
+
+ring2_ar::ring2_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void ring2_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_ring2( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ ring2 ------------------------------*/
+
+class ring2_kr
+    :public flext_base
+{
+    FLEXT_HEADER(ring2_kr,flext_base);
+
+public:
+    ring2_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("ring2",ring2_kr);
+
+ring2_kr::ring2_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void ring2_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_ring2(f,b));
+}
+
+void ring2_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/ring2.cpp~ b/sc4pd/source/ring2.cpp~
new file mode 100644
index 0000000..b9aee15
--- /dev/null
+++ b/sc4pd/source/ring2.cpp~
@@ -0,0 +1,136 @@
+/* sc4pd 
+   ring1, ring1~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_ring1 (float a, float b)
+{
+    return a*b+a;
+}
+
+
+/* ------------------------ ring1~ -----------------------------*/
+
+class ring1_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(ring1_ar,flext_dsp);
+
+public:
+    ring1_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("ring1~",ring1_ar);
+
+ring1_ar::ring1_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void ring1_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_ring1( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ ring1 ------------------------------*/
+
+class ring1_kr
+    :public flext_base
+{
+    FLEXT_HEADER(ring1_kr,flext_base);
+
+public:
+    ring1_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("ring1",ring1_kr);
+
+ring1_kr::ring1_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void ring1_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_ring1(f,b));
+}
+
+void ring1_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/ring3.cpp b/sc4pd/source/ring3.cpp
new file mode 100644
index 0000000..1887066
--- /dev/null
+++ b/sc4pd/source/ring3.cpp
@@ -0,0 +1,136 @@
+/* sc4pd 
+   ring3, ring3~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_ring3 (float a, float b)
+{
+    return a*a*b;
+}
+
+
+/* ------------------------ ring3~ -----------------------------*/
+
+class ring3_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(ring3_ar,flext_dsp);
+
+public:
+    ring3_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("ring3~",ring3_ar);
+
+ring3_ar::ring3_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void ring3_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_ring3( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ ring3 ------------------------------*/
+
+class ring3_kr
+    :public flext_base
+{
+    FLEXT_HEADER(ring3_kr,flext_base);
+
+public:
+    ring3_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("ring3",ring3_kr);
+
+ring3_kr::ring3_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void ring3_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_ring3(f,b));
+}
+
+void ring3_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/ring3.cpp~ b/sc4pd/source/ring3.cpp~
new file mode 100644
index 0000000..02e9a18
--- /dev/null
+++ b/sc4pd/source/ring3.cpp~
@@ -0,0 +1,136 @@
+/* sc4pd 
+   ring2, ring2~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_ring2 (float a, float b)
+{
+    return a*b+a+b;
+}
+
+
+/* ------------------------ ring2~ -----------------------------*/
+
+class ring2_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(ring2_ar,flext_dsp);
+
+public:
+    ring2_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("ring2~",ring2_ar);
+
+ring2_ar::ring2_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void ring2_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_ring2( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ ring2 ------------------------------*/
+
+class ring2_kr
+    :public flext_base
+{
+    FLEXT_HEADER(ring2_kr,flext_base);
+
+public:
+    ring2_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("ring2",ring2_kr);
+
+ring2_kr::ring2_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void ring2_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_ring2(f,b));
+}
+
+void ring2_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/ring4.cpp b/sc4pd/source/ring4.cpp
new file mode 100644
index 0000000..b343f67
--- /dev/null
+++ b/sc4pd/source/ring4.cpp
@@ -0,0 +1,136 @@
+/* sc4pd 
+   ring4, ring4~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_ring4 (float a, float b)
+{
+    return (a*a*b)-(a*b*b);
+}
+
+
+/* ------------------------ ring4~ -----------------------------*/
+
+class ring4_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(ring4_ar,flext_dsp);
+
+public:
+    ring4_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("ring4~",ring4_ar);
+
+ring4_ar::ring4_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void ring4_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_ring4( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ ring4 ------------------------------*/
+
+class ring4_kr
+    :public flext_base
+{
+    FLEXT_HEADER(ring4_kr,flext_base);
+
+public:
+    ring4_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("ring4",ring4_kr);
+
+ring4_kr::ring4_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void ring4_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_ring4(f,b));
+}
+
+void ring4_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/ring4.cpp~ b/sc4pd/source/ring4.cpp~
new file mode 100644
index 0000000..1887066
--- /dev/null
+++ b/sc4pd/source/ring4.cpp~
@@ -0,0 +1,136 @@
+/* sc4pd 
+   ring3, ring3~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_ring3 (float a, float b)
+{
+    return a*a*b;
+}
+
+
+/* ------------------------ ring3~ -----------------------------*/
+
+class ring3_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(ring3_ar,flext_dsp);
+
+public:
+    ring3_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("ring3~",ring3_ar);
+
+ring3_ar::ring3_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void ring3_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_ring3( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ ring3 ------------------------------*/
+
+class ring3_kr
+    :public flext_base
+{
+    FLEXT_HEADER(ring3_kr,flext_base);
+
+public:
+    ring3_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("ring3",ring3_kr);
+
+ring3_kr::ring3_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void ring3_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_ring3(f,b));
+}
+
+void ring3_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/scaleneg.cpp b/sc4pd/source/scaleneg.cpp
new file mode 100644
index 0000000..f6e69db
--- /dev/null
+++ b/sc4pd/source/scaleneg.cpp
@@ -0,0 +1,130 @@
+/* sc4pd 
+   scaleneg, scaleneg(~)
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Keith Rowe & Toshimaru Nakamura: Weather Sky
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+/* ------------------------ scaleneg~ -----------------------------*/
+
+class scaleneg_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(scaleneg_ar,flext_dsp);
+
+public:
+    scaleneg_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("scaleneg~",scaleneg_ar);
+
+scaleneg_ar::scaleneg_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void scaleneg_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_scaleneg( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ scaleneg ------------------------------*/
+
+class scaleneg_kr
+    :public flext_base
+{
+    FLEXT_HEADER(scaleneg_kr,flext_base);
+
+public:
+    scaleneg_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("scaleneg",scaleneg_kr);
+
+scaleneg_kr::scaleneg_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void scaleneg_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_scaleneg(f,b));
+}
+
+void scaleneg_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/sqrdif.cpp b/sc4pd/source/sqrdif.cpp
new file mode 100644
index 0000000..617f987
--- /dev/null
+++ b/sc4pd/source/sqrdif.cpp
@@ -0,0 +1,137 @@
+/* sc4pd 
+   sqrdif, sqrdif~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_sqrdif (float a, float b)
+{
+    float f=a-b;
+    return f*f;
+}
+
+
+/* ------------------------ sqrdif~ -----------------------------*/
+
+class sqrdif_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(sqrdif_ar,flext_dsp);
+
+public:
+    sqrdif_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("sqrdif~",sqrdif_ar);
+
+sqrdif_ar::sqrdif_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void sqrdif_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_sqrdif( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ sqrdif ------------------------------*/
+
+class sqrdif_kr
+    :public flext_base
+{
+    FLEXT_HEADER(sqrdif_kr,flext_base);
+
+public:
+    sqrdif_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("sqrdif",sqrdif_kr);
+
+sqrdif_kr::sqrdif_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void sqrdif_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_sqrdif(f,b));
+}
+
+void sqrdif_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/sqrdif.cpp~ b/sc4pd/source/sqrdif.cpp~
new file mode 100644
index 0000000..7e5d431
--- /dev/null
+++ b/sc4pd/source/sqrdif.cpp~
@@ -0,0 +1,136 @@
+/* sc4pd 
+   sqrdif, sqrdif~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_sqrdif (float a, float b)
+{
+    return a*a+b*b;
+}
+
+
+/* ------------------------ sqrdif~ -----------------------------*/
+
+class sqrdif_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(sqrdif_ar,flext_dsp);
+
+public:
+    sqrdif_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("sqrdif~",sqrdif_ar);
+
+sqrdif_ar::sqrdif_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void sqrdif_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_sqrdif( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ sqrdif ------------------------------*/
+
+class sqrdif_kr
+    :public flext_base
+{
+    FLEXT_HEADER(sqrdif_kr,flext_base);
+
+public:
+    sqrdif_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("sqrdif",sqrdif_kr);
+
+sqrdif_kr::sqrdif_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void sqrdif_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_sqrdif(f,b));
+}
+
+void sqrdif_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/sqrsum.cpp b/sc4pd/source/sqrsum.cpp
new file mode 100644
index 0000000..8a39b68
--- /dev/null
+++ b/sc4pd/source/sqrsum.cpp
@@ -0,0 +1,137 @@
+/* sc4pd 
+   sqrsum, sqrsum~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_sqrsum (float a, float b)
+{
+    float f=a+b;
+    return f*f;
+}
+
+
+/* ------------------------ sqrsum~ -----------------------------*/
+
+class sqrsum_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(sqrsum_ar,flext_dsp);
+
+public:
+    sqrsum_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("sqrsum~",sqrsum_ar);
+
+sqrsum_ar::sqrsum_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void sqrsum_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_sqrsum( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ sqrsum ------------------------------*/
+
+class sqrsum_kr
+    :public flext_base
+{
+    FLEXT_HEADER(sqrsum_kr,flext_base);
+
+public:
+    sqrsum_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("sqrsum",sqrsum_kr);
+
+sqrsum_kr::sqrsum_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void sqrsum_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_sqrsum(f,b));
+}
+
+void sqrsum_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/sqrsum.cpp~ b/sc4pd/source/sqrsum.cpp~
new file mode 100644
index 0000000..617f987
--- /dev/null
+++ b/sc4pd/source/sqrsum.cpp~
@@ -0,0 +1,137 @@
+/* sc4pd 
+   sqrdif, sqrdif~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_sqrdif (float a, float b)
+{
+    float f=a-b;
+    return f*f;
+}
+
+
+/* ------------------------ sqrdif~ -----------------------------*/
+
+class sqrdif_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(sqrdif_ar,flext_dsp);
+
+public:
+    sqrdif_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("sqrdif~",sqrdif_ar);
+
+sqrdif_ar::sqrdif_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void sqrdif_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_sqrdif( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ sqrdif ------------------------------*/
+
+class sqrdif_kr
+    :public flext_base
+{
+    FLEXT_HEADER(sqrdif_kr,flext_base);
+
+public:
+    sqrdif_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("sqrdif",sqrdif_kr);
+
+sqrdif_kr::sqrdif_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void sqrdif_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_sqrdif(f,b));
+}
+
+void sqrdif_kr::m_set(float f)
+{
+    b=f;
+}
diff --git a/sc4pd/source/sumsqr.cpp b/sc4pd/source/sumsqr.cpp
new file mode 100644
index 0000000..5eb5726
--- /dev/null
+++ b/sc4pd/source/sumsqr.cpp
@@ -0,0 +1,136 @@
+/* sc4pd 
+   sumsqr, sumsqr~
+
+   Copyright (c) 2004 Tim Blechmann.
+
+   This code is derived from:
+	SuperCollider real time audio synthesis system
+    Copyright (c) 2002 James McCartney. All rights reserved.
+	http://www.audiosynth.com
+
+
+   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 2
+   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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+   Based on:
+     PureData by Miller Puckette and others.
+         http://www.crca.ucsd.edu/~msp/software.html
+     FLEXT by Thomas Grill
+         http://www.parasitaere-kapazitaeten.net/ext
+     SuperCollider by James McCartney
+         http://www.audiosynth.com
+     
+   Coded while listening to: Evan Parker & Keith Rowe: Dark Rags
+   
+*/
+
+#include <flext.h>
+#include "SC_PlugIn.h"
+
+#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 406)
+#error You need at least FLEXT version 0.4.6
+#endif
+
+
+inline float sc_sumsqr (float a, float b)
+{
+    return a*a+b*b;
+}
+
+
+/* ------------------------ sumsqr~ -----------------------------*/
+
+class sumsqr_ar
+    :public flext_dsp
+{
+    FLEXT_HEADER(sumsqr_ar,flext_dsp);
+
+public:
+    sumsqr_ar(int argc,t_atom * argv);
+
+protected:
+    virtual void m_signal(int n, t_sample *const *in, t_sample *const *out);
+
+private:
+    
+};
+
+FLEXT_LIB_DSP_V("sumsqr~",sumsqr_ar);
+
+sumsqr_ar::sumsqr_ar(int argc,t_atom * argv)
+{
+    AddInSignal();
+    AddInSignal();
+    AddOutSignal();
+}
+
+void sumsqr_ar::m_signal(int n, t_sample *const *in, 
+				t_sample *const *out)
+{
+    t_sample *nout = *out;
+    t_sample *nin1 = *in;
+    t_sample *nin2 = *(in+1);
+
+    for (int i = 0; i!= n;++i)
+    {
+	if( *nin2 > 0)
+	    (*(nout)++) = sc_sumsqr( (*(nin1)++), (*(nin2)++) );
+    }
+}
+
+
+
+/* ------------------------ sumsqr ------------------------------*/
+
+class sumsqr_kr
+    :public flext_base
+{
+    FLEXT_HEADER(sumsqr_kr,flext_base);
+
+public:
+    sumsqr_kr(int argc,t_atom * argv);
+
+protected:
+    void m_perform(float f);
+    void m_set(float f);
+    
+private:
+    float b;
+    FLEXT_CALLBACK_F(m_perform);
+    FLEXT_CALLBACK_F(m_set);
+};
+
+FLEXT_LIB_V("sumsqr",sumsqr_kr);
+
+sumsqr_kr::sumsqr_kr(int argc,t_atom * argv)
+    :b(0)
+{
+
+    AddInFloat();
+    AddInFloat();
+    AddOutFloat();
+
+    FLEXT_ADDMETHOD(0,m_perform);
+    FLEXT_ADDMETHOD(1,m_set);
+}
+
+void sumsqr_kr::m_perform(float f)
+{
+    ToOutFloat(0,sc_sumsqr(f,b));
+}
+
+void sumsqr_kr::m_set(float f)
+{
+    b=f;
+}