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diff --git a/noncore/tools/calc2/main/stdinstructions.h b/noncore/tools/calc2/main/stdinstructions.h
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+++ b/noncore/tools/calc2/main/stdinstructions.h
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+/**********************************************************************
+** Copyright (C) 2000 Trolltech AS.  All rights reserved.
+**
+** This file is part of Qtopia Environment.
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.
+**
+** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+**
+** See http://www.trolltech.com/gpl/ for GPL licensing information.
+**
+** Contact info@trolltech.com if any conditions of this licensing are
+** not clear to you.
+**
+**********************************************************************/
+
+#ifndef STDINSTRUCTION_H
+#define STDINSTRUCTION_H
+
+#include <qpe/qmath.h>
+#include "instruction.h"
+
+// Useful instructions for plugin writers
+// If you use them, take note of their precedence
+class iAdd:public Instruction {
+public:
+  iAdd ():Instruction (10) { };
+  ~iAdd () { };
+  Data eval (Data num) {
+    Data result;
+    switch (rep) {
+	case rDouble:
+	    result.dbl =  acc.dbl + num.dbl;
+	    break;
+	default:
+	    result.i = acc.i + num.i;
+    };
+    return result;
+  };
+};
+class iSub:public Instruction {
+public:
+  iSub ():Instruction (10) { };
+  ~iSub () { };
+  Data eval (Data num) {
+    Data result;
+    switch (rep) {
+	case rDouble:
+	    result.dbl = acc.dbl - num.dbl;
+	    break;
+	default:
+	    result.i = acc.i - num.i;
+    };
+    return result;
+  };
+};
+class iMul:public Instruction {
+public:
+  iMul ():Instruction (20) { };
+  ~iMul () { };
+  Data eval (Data num) {
+    Data result;
+    switch (rep) {
+	case rDouble:
+	    result.dbl = acc.dbl * num.dbl;
+	    break;
+	default:
+	    result.i = acc.i * num.i;
+    };
+    return result;
+  };
+};
+class iDiv:public Instruction {
+public:
+  iDiv ():Instruction (20) { };
+  ~iDiv () { };
+  Data eval (Data num) {
+    Data result;
+    switch (rep) {
+	case rDouble:
+	    result.dbl = acc.dbl / num.dbl;
+	    break;
+	default:
+	    result.i = acc.i / num.i;
+    };
+    return result;
+  };
+};
+
+// Immediate double instructions only
+class iSin:public Instruction {
+public:
+  iSin ():Instruction () { };
+  ~iSin () { };
+  Data eval (Data num) {
+    Data result;
+    result.dbl = qSin(num.dbl);
+    return result;
+  };
+};
+class iCos:public Instruction {
+public:
+  iCos ():Instruction () { };
+  ~iCos () { };
+  Data eval (Data num) {
+    Data result;
+    result.dbl = qCos(num.dbl);
+    return result;
+  };
+};
+class iTan:public Instruction {
+public:
+  iTan ():Instruction () { };
+  ~iTan () {};
+  Data eval (Data num) {
+    Data result;
+    result.dbl = qTan(num.dbl);
+    return result;
+  };
+};
+#endif