diff --git a/core/vm/instructions.go b/core/vm/instructions.go
index 9ec4544643..425169313a 100644
--- a/core/vm/instructions.go
+++ b/core/vm/instructions.go
@@ -583,6 +583,86 @@ func opGas(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte
 	return nil, nil
 }
 
+func opSwap1(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap1()
+	return nil, nil
+}
+
+func opSwap2(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap2()
+	return nil, nil
+}
+
+func opSwap3(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap3()
+	return nil, nil
+}
+
+func opSwap4(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap4()
+	return nil, nil
+}
+
+func opSwap5(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap5()
+	return nil, nil
+}
+
+func opSwap6(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap6()
+	return nil, nil
+}
+
+func opSwap7(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap7()
+	return nil, nil
+}
+
+func opSwap8(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap8()
+	return nil, nil
+}
+
+func opSwap9(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap9()
+	return nil, nil
+}
+
+func opSwap10(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap10()
+	return nil, nil
+}
+
+func opSwap11(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap11()
+	return nil, nil
+}
+
+func opSwap12(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap12()
+	return nil, nil
+}
+
+func opSwap13(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap13()
+	return nil, nil
+}
+
+func opSwap14(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap14()
+	return nil, nil
+}
+
+func opSwap15(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap15()
+	return nil, nil
+}
+
+func opSwap16(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
+	scope.Stack.swap16()
+	return nil, nil
+}
+
 func opCreate(pc *uint64, interpreter *EVMInterpreter, scope *ScopeContext) ([]byte, error) {
 	if interpreter.readOnly {
 		return nil, ErrWriteProtection