diff --git a/src/Operation.cpp b/src/Operation.cpp
new file mode 100644
index 0000000000..b0661f57a2
--- /dev/null
+++ b/src/Operation.cpp
@@ -0,0 +1,17 @@
+#include "Operation.h"
+#include "Config.h"
+
+/*
+We also need to charge for each op
+
+*/
+
+namespace Script {
+
+
+int Operation::getFee()
+{
+	return(theConfig.FEE_CONTRACT_OPERATION);
+}
+
+}
\ No newline at end of file
diff --git a/src/Operation.h b/src/Operation.h
new file mode 100644
index 0000000000..9fca2498c4
--- /dev/null
+++ b/src/Operation.h
@@ -0,0 +1,220 @@
+#include "Interpreter.h"
+
+namespace Script {
+
+// Contracts are non typed  have variable data types
+
+
+class Operation
+{
+public:
+	// returns false if there was an error
+	virtual bool work(Interpreter* interpreter)=0;
+
+	virtual int getFee();
+};
+
+// this is just an Int in the code
+class IntOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer data=interpreter->getIntData();
+		if(data->isInt32()) 
+		{ 
+			interpreter->pushStack( data );
+			return(true);
+		}
+		return(false);
+	}
+};
+
+class FloatOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer data=interpreter->getFloatData();
+		if(data->isFloat()) 
+		{ 
+			interpreter->pushStack( data );
+			return(true);
+		}
+		return(false);
+	}
+};
+
+class Uint160Op : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer data=interpreter->getUint160Data();
+		if(data->isUint160()) 
+		{ 
+			interpreter->pushStack( data );
+			return(true);
+		}
+		return(false);
+	}
+};
+
+class AddOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer data1=interpreter->popStack();
+		Data::pointer data2=interpreter->popStack();
+		if( (data1->isInt32() || data1->isFloat()) &&
+			(data2->isInt32() || data2->isFloat()) )
+		{
+			if(data1->isFloat() || data2->isFloat()) interpreter->pushStack(Data::pointer(new FloatData(data1->getFloat()+data2->getFloat())));
+			else interpreter->pushStack(Data::pointer(new IntData(data1->getInt()+data2->getInt())));
+			return(true);
+		}else
+		{
+			return(false);
+		}	
+	}
+};
+
+class SubOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer data1=interpreter->popStack();
+		Data::pointer data2=interpreter->popStack();
+		if( (data1->isInt32() || data1->isFloat()) &&
+			(data2->isInt32() || data2->isFloat()) )
+		{
+			if(data1->isFloat() || data2->isFloat()) interpreter->pushStack(Data::pointer(new FloatData(data1->getFloat()-data2->getFloat())));
+			else interpreter->pushStack(Data::pointer(new IntData(data1->getInt()-data2->getInt())));
+			return(true);
+		}else
+		{
+			return(false);
+		}	
+	}
+};
+
+
+class StartBlockOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer offset=interpreter->getIntData();
+		return(interpreter->startBlock(offset->getInt()));
+	}
+};
+
+class EndBlockOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		return(interpreter->endBlock());
+	}
+};
+
+class StopOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		interpreter->stop();
+		return(true);
+	}
+};
+
+class AcceptDataOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer data=interpreter->popStack();
+		if(data->isInt32())
+		{
+			interpreter->pushStack( interpreter->getAcceptData(data->getInt()) );
+			return(true);
+		}
+		return(false);
+	}
+};
+
+class JumpIfOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer offset=interpreter->getIntData();
+		Data::pointer cond=interpreter->popStack();
+		if(cond->isBool() && offset->isInt32())
+		{
+			if(cond->isTrue())
+			{
+				return(interpreter->jumpTo(offset->getInt()));
+			}
+			return(true);
+		}
+		return(false);
+	}
+};
+
+class JumpOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer offset=interpreter->getIntData();
+		if(offset->isInt32())
+		{
+			return(interpreter->jumpTo(offset->getInt()));
+		}
+		return(false);
+	}
+};
+
+class SendXNSOp  : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer sourceID=interpreter->popStack();
+		Data::pointer destID=interpreter->popStack();
+		Data::pointer amount=interpreter->popStack();
+		if(sourceID->isUint160() && destID->isUint160() && amount->isInt32() && interpreter->canSign(sourceID->getUint160()))
+		{
+			// make sure:
+			// source is either, this contract, issuer, or acceptor
+
+			// TODO do the send
+			//interpreter->pushStack( send result);
+
+			return(true);
+		}
+
+		return(false);
+	}
+};
+
+class GetDataOp : public Operation
+{
+public:
+	bool work(Interpreter* interpreter)
+	{
+		Data::pointer index=interpreter->popStack();
+		if(index->isInt32()) 
+		{
+			interpreter->pushStack( interpreter->getContractData(index->getInt()));
+			return(true);
+		}
+
+		return(false);
+	}
+};
+
+}
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