diff --git a/src/libcoreint/opcodes.c b/src/libcoreint/opcodes.c
index 5961db133..57d1391bd 100644
--- a/src/libcoreint/opcodes.c
+++ b/src/libcoreint/opcodes.c
@@ -14,8 +14,10 @@
  */
 
 #include "ecma-alloc.h"
+#include "ecma-conversion.h"
 #include "ecma-exceptions.h"
 #include "ecma-helpers.h"
+#include "ecma-number-arithmetic.h"
 #include "ecma-operations.h"
 #include "interpreter.h"
 #include "jerry-libc.h"
@@ -89,6 +91,61 @@ free_string_literal_copy(string_literal_copy *str_lit_descr_p) /**< string liter
   return;
 } /* free_string_literal */
 
+/**
+ * Get variable's value.
+ *
+ * @return completion value
+ *         Returned value must be freed with ecma_free_completion_value
+ */
+static ecma_CompletionValue_t
+get_variable_value(struct __int_data *int_data, /* interpreter context */
+                   T_IDX var_idx) /* variable identifier */
+{
+  string_literal_copy var_name;
+  ecma_Reference_t ref;
+  ecma_CompletionValue_t ret_value;
+
+  init_string_literal_copy( var_idx, &var_name);
+  ref = ecma_OpGetIdentifierReference( int_data->lex_env_p,
+                                       var_name.str_p,
+                                       int_data->is_strict);
+
+  ret_value = ecma_op_get_value( ref);
+
+  ecma_FreeReference( ref);
+  free_string_literal_copy( &var_name);
+
+  return ret_value;
+} /* get_variable_value */
+
+/**
+ * Set variable's value.
+ *
+ * @return completion value
+ *         Returned value must be freed with ecma_free_completion_value
+ */
+static ecma_CompletionValue_t
+set_variable_value(struct __int_data *int_data, /**< interpreter context */
+                   T_IDX var_idx, /**< variable identifier */
+                   ecma_Value_t value) /**< value to set */
+{
+  string_literal_copy var_name;
+  ecma_Reference_t ref;
+  ecma_CompletionValue_t ret_value;
+
+  init_string_literal_copy( var_idx, &var_name);
+  ref = ecma_OpGetIdentifierReference( int_data->lex_env_p,
+                                       var_name.str_p,
+                                       int_data->is_strict);
+
+  ret_value = ecma_op_put_value( ref, value);
+
+  ecma_FreeReference( ref);
+  free_string_literal_copy( &var_name);
+
+  return ret_value;
+} /* set_variable_value */
+
 #define OP_UNIMPLEMENTED_LIST(op) \
     op(is_true_jmp)                     \
     op(is_false_jmp)                    \
@@ -128,7 +185,6 @@ free_string_literal_copy(string_literal_copy *str_lit_descr_p) /**< string liter
     op(addition)                        \
     op(substraction)                    \
     op(division)                        \
-    op(multiplication)                  \
     op(remainder)                       \
     op(jmp_up)                          \
     op(jmp_down)                        \
@@ -240,29 +296,15 @@ opfunc_assignment (OPCODE opdata, /**< operation data */
       }
     case OPCODE_ARG_TYPE_VARIABLE:
       {
-        string_literal_copy src_variable_name;
-        ecma_Reference_t src_reference;
-
-        init_string_literal_copy( src_val_descr, &src_variable_name);
-
-        src_reference = ecma_OpGetIdentifierReference( int_data->lex_env_p,
-                                                       src_variable_name.str_p,
-                                                       int_data->is_strict);
-
-        ecma_CompletionValue_t get_value_completion = ecma_op_get_value( &src_reference);
-
-        JERRY_ASSERT( get_value_completion.type == ECMA_COMPLETION_TYPE_NORMAL
-                      || get_value_completion.type == ECMA_COMPLETION_TYPE_THROW );
-
-        ecma_FreeReference( src_reference);
-
-        free_string_literal_copy( &src_variable_name);
-
-        if ( get_value_completion.type == ECMA_COMPLETION_TYPE_NORMAL )
+        ecma_CompletionValue_t get_value_completion = get_variable_value( int_data,
+                                                                          src_val_descr);                                                                         
+        if ( ecma_is_completion_value_normal( get_value_completion) )
         {
           right_value = get_value_completion.value;
         } else
         {
+          JERRY_ASSERT( ecma_is_completion_value_throw( get_value_completion) );
+
           return get_value_completion;
         }
 
@@ -314,7 +356,7 @@ opfunc_assignment (OPCODE opdata, /**< operation data */
     completion_value = ecma_MakeThrowValue( ecma_NewStandardError( ECMA_ERROR_SYNTAX));
   } else
   {
-    completion_value = ecma_op_put_value( &dst_reference, right_value);
+    completion_value = ecma_op_put_value( dst_reference, right_value);
   }
 
   ecma_FreeValue( right_value);
@@ -326,6 +368,95 @@ opfunc_assignment (OPCODE opdata, /**< operation data */
   return completion_value;
 } /* opfunc_assignment */
 
+/**
+ * Multiplicatoin opcode handler.
+ *
+ * See also: ECMA-262 v5, 11.5, 11.5.1
+ *
+ * @return completion value
+ *         Returned value must be freed with ecma_free_completion_value
+ */
+ecma_CompletionValue_t
+opfunc_multiplication (OPCODE opdata, /**< operation data */
+                       struct __int_data *int_data) /**< interpreter context */
+{
+  const T_IDX dst_var_idx = opdata.data.multiplication.dst;
+  const T_IDX left_var_idx = opdata.data.multiplication.var_left;
+  const T_IDX right_var_idx = opdata.data.multiplication.var_right;
+
+  int_data->pos++;
+
+  ecma_CompletionValue_t left_value = ecma_make_empty_completion_value(),
+                         right_value = ecma_make_empty_completion_value(),
+                         num_left_value = ecma_make_empty_completion_value(),
+                         num_right_value = ecma_make_empty_completion_value(),
+                         ret_value = ecma_make_empty_completion_value();
+
+  left_value = get_variable_value( int_data, left_var_idx);
+
+  if ( ecma_is_completion_value_throw( left_value) )
+    {
+      ret_value = ecma_copy_completion_value( left_value);
+    }
+  else
+    {
+      JERRY_ASSERT( ecma_is_completion_value_normal( left_value) );
+
+      right_value = get_variable_value( int_data, right_var_idx);
+
+      if ( ecma_is_completion_value_throw( right_value) )
+        {
+          ret_value = ecma_copy_completion_value( right_value);
+        }
+      else
+        {
+          JERRY_ASSERT( ecma_is_completion_value_normal( right_value) );
+
+          num_left_value = ecma_op_to_number( left_value.value);
+
+          if ( ecma_is_completion_value_throw( num_left_value) )
+            {
+              ret_value = ecma_copy_completion_value( num_left_value);
+            }
+          else
+            {
+              JERRY_ASSERT( ecma_is_completion_value_normal( num_left_value) );
+
+              num_right_value = ecma_op_to_number( right_value.value);
+
+              if ( ecma_is_completion_value_throw( num_right_value) )
+                {
+                  ret_value = ecma_copy_completion_value( num_right_value);
+                }
+              else
+                {
+                  JERRY_ASSERT( ecma_is_completion_value_normal( num_right_value) );
+
+                  ecma_Number_t *left_p, *right_p, *res_p;
+                  left_p = (ecma_Number_t*)ecma_GetPointer( num_left_value.value.m_Value);
+                  right_p = (ecma_Number_t*)ecma_GetPointer( num_right_value.value.m_Value);
+                  res_p = ecma_AllocNumber();
+
+                  *res_p = ecma_op_number_multiply( *left_p, *right_p);
+
+                  ret_value = set_variable_value( int_data,
+                                                  dst_var_idx,
+                                                  ecma_MakeNumberValue( res_p));
+
+                  ecma_DeallocNumber( res_p);
+                }
+            }
+        }
+    }
+
+  ecma_free_completion_value( left_value);
+  ecma_free_completion_value( right_value);
+  ecma_free_completion_value( num_left_value);
+  ecma_free_completion_value( num_right_value);
+
+  return ret_value;
+} /* opfunc_multiplication */
+
 /**
  * Variable declaration opcode handler.
  *
diff --git a/src/libecmaobjects/ecma-helpers-value.c b/src/libecmaobjects/ecma-helpers-value.c
index 455340df1..d3df38180 100644
--- a/src/libecmaobjects/ecma-helpers-value.c
+++ b/src/libecmaobjects/ecma-helpers-value.c
@@ -89,6 +89,22 @@ ecma_MakeSimpleValue( ecma_SimpleValue_t value) /**< simple value */
   return (ecma_Value_t) { .m_ValueType = ECMA_TYPE_SIMPLE, .m_Value = value };
 } /* ecma_MakeSimpleValue */
 
+/**
+ * Number value constructor
+ */
+ecma_Value_t
+ecma_MakeNumberValue( ecma_Number_t* num_p) /**< number to reference in value */
+{
+  JERRY_ASSERT( num_p != NULL );
+
+  ecma_Value_t number_value;
+
+  number_value.m_ValueType = ECMA_TYPE_NUMBER;
+  ecma_SetPointer( number_value.m_Value, num_p);
+
+  return number_value;
+} /* ecma_MakeNumberValue */
+
 /**
  * Object value constructor
  */
@@ -255,6 +271,32 @@ ecma_MakeThrowValue( ecma_Object_t *exception_p) /**< an object */
                                   ECMA_TARGET_ID_RESERVED);                                  
 } /* ecma_MakeThrowValue */
 
+/**
+ * Empty completion value constructor.
+ *
+ * @return (normal, empty, reserved) completion value.
+ */
+ecma_CompletionValue_t
+ecma_make_empty_completion_value( void)
+{
+  return ecma_MakeCompletionValue( ECMA_COMPLETION_TYPE_NORMAL,
+                                   ecma_MakeSimpleValue( ECMA_SIMPLE_VALUE_EMPTY),
+                                   ECMA_TARGET_ID_RESERVED);
+} /* ecma_make_empty_completion_value */
+
+/**
+ * Copy ecma-completion value.
+ *
+ * @return (source.type, ecma_CopyValue( source.value), source.target).
+ */
+ecma_CompletionValue_t
+ecma_copy_completion_value( ecma_CompletionValue_t value) /**< completion value */
+{
+  return ecma_MakeCompletionValue( value.type,
+                                   ecma_CopyValue( value.value),
+                                   value.target);
+} /* ecma_copy_completion_value */
+
 /**
  * Free the completion value.
  */
@@ -283,11 +325,36 @@ ecma_free_completion_value( ecma_CompletionValue_t completion_value) /**< comple
  *         false - otherwise.
  */
 bool
-ecma_is_completion_value_normal( ecma_CompletionValue_t value)
+ecma_is_completion_value_normal( ecma_CompletionValue_t value) /**< completion value */
 {
   return ( value.type == ECMA_COMPLETION_TYPE_NORMAL );
 } /* ecma_is_completion_value_normal */
 
+/**
+ * Check if the completion value is throw value.
+ *
+ * @return true - if the completion type is throw,
+ *         false - otherwise.
+ */
+bool
+ecma_is_completion_value_throw( ecma_CompletionValue_t value) /**< completion value */
+{
+  return ( value.type == ECMA_COMPLETION_TYPE_THROW );
+} /* ecma_is_completion_value_throw */
+
+/**
+ * Check if the completion value is normal or throw value.
+ *
+ * @return true - if the completion type is normal or throw,
+ *         false - otherwise.
+ */
+bool
+ecma_is_completion_value_normal_or_throw( ecma_CompletionValue_t value) /**< completion value */
+{
+  return ecma_is_completion_value_normal( value)
+         || ecma_is_completion_value_throw( value);
+} /* ecma_is_completion_value_normal_or_throw */
+
 /**
  * Check if the completion value is specified normal simple value.
  *
diff --git a/src/libecmaobjects/ecma-helpers.h b/src/libecmaobjects/ecma-helpers.h
index dbe890bd1..0168dc04b 100644
--- a/src/libecmaobjects/ecma-helpers.h
+++ b/src/libecmaobjects/ecma-helpers.h
@@ -48,15 +48,20 @@ extern bool ecma_IsValueBoolean( ecma_Value_t value);
 extern bool ecma_IsValueTrue( ecma_Value_t value);
 
 extern ecma_Value_t ecma_MakeSimpleValue( ecma_SimpleValue_t value);
+extern ecma_Value_t ecma_MakeNumberValue( ecma_Number_t* num_p);
 extern ecma_Value_t ecma_MakeObjectValue( ecma_Object_t* object_p);
 extern ecma_Value_t ecma_CopyValue( const ecma_Value_t value);
 extern void ecma_FreeValue( const ecma_Value_t value);
 
 extern ecma_CompletionValue_t ecma_MakeCompletionValue( ecma_CompletionType_t type, ecma_Value_t value, uint8_t target);
 extern ecma_CompletionValue_t ecma_MakeThrowValue( ecma_Object_t *exception_p);
+extern ecma_CompletionValue_t ecma_make_empty_completion_value( void);
+extern ecma_CompletionValue_t ecma_copy_completion_value( ecma_CompletionValue_t value);
 extern void ecma_free_completion_value( ecma_CompletionValue_t completion_value);
 
 extern bool ecma_is_completion_value_normal( ecma_CompletionValue_t value);
+extern bool ecma_is_completion_value_throw( ecma_CompletionValue_t value);
+extern bool ecma_is_completion_value_normal_or_throw( ecma_CompletionValue_t value);
 extern bool ecma_is_completion_value_normal_simple_value( ecma_CompletionValue_t value, ecma_SimpleValue_t simple_value);
 extern bool ecma_IsCompletionValueNormalFalse( ecma_CompletionValue_t value);
 extern bool ecma_IsCompletionValueNormalTrue( ecma_CompletionValue_t value);
diff --git a/src/libecmaoperations/ecma-get-put-value.c b/src/libecmaoperations/ecma-get-put-value.c
index a6879269c..12cd2fbae 100644
--- a/src/libecmaoperations/ecma-get-put-value.c
+++ b/src/libecmaoperations/ecma-get-put-value.c
@@ -38,9 +38,9 @@
  *         Returned value must be freed with ecma_free_completion_value.
  */
 ecma_CompletionValue_t
-ecma_op_get_value( ecma_Reference_t *ref_p) /**< ECMA-reference */
+ecma_op_get_value( ecma_Reference_t ref) /**< ECMA-reference */
 {
-  const ecma_Value_t base = ref_p->base;
+  const ecma_Value_t base = ref.base;
   const bool is_unresolvable_reference = ecma_IsValueUndefined( base);
   const bool has_primitive_base = ( ecma_IsValueBoolean( base)
                                     || base.m_ValueType == ECMA_TYPE_NUMBER
@@ -64,14 +64,14 @@ ecma_op_get_value( ecma_Reference_t *ref_p) /**< ECMA-reference */
       JERRY_ASSERT( obj_p != NULL && !obj_p->m_IsLexicalEnvironment );
       
       // GetValue_4.b case 1
-      /* return [[Get]]( base as this, ref_p->referenced_name_p) */
+      /* return [[Get]]( base as this, ref.referenced_name_p) */
       JERRY_UNIMPLEMENTED();
     } else
     { // GetValue_4.b case 2
       /*
        ecma_Object_t *obj_p = ecma_ToObject( base);
        JERRY_ASSERT( obj_p != NULL && !obj_p->m_IsLexicalEnvironment );
-       ecma_Property_t *property = obj_p->[[GetProperty]]( ref_p->referenced_name_p);
+       ecma_Property_t *property = obj_p->[[GetProperty]]( ref.referenced_name_p);
        if ( property->m_Type == ECMA_PROPERTY_NAMEDDATA )
        {
          return ecma_MakeCompletionValue( ECMA_COMPLETION_TYPE_NORMAL,
@@ -103,7 +103,7 @@ ecma_op_get_value( ecma_Reference_t *ref_p) /**< ECMA-reference */
 
     JERRY_ASSERT( lex_env_p != NULL && lex_env_p->m_IsLexicalEnvironment );
 
-    return ecma_OpGetBindingValue( lex_env_p, ref_p->referenced_name_p, ref_p->is_strict);
+    return ecma_OpGetBindingValue( lex_env_p, ref.referenced_name_p, ref.is_strict);
   }
 } /* ecma_op_get_value */
 
@@ -116,10 +116,10 @@ ecma_op_get_value( ecma_Reference_t *ref_p) /**< ECMA-reference */
  *         Returned value must be freed with ecma_free_completion_value.
  */
 ecma_CompletionValue_t
-ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
+ecma_op_put_value(ecma_Reference_t ref, /**< ECMA-reference */
                   ecma_Value_t value) /**< ECMA-value */
 {
-  const ecma_Value_t base = ref_p->base;
+  const ecma_Value_t base = ref.base;
   const bool is_unresolvable_reference = ecma_IsValueUndefined( base);
   const bool has_primitive_base = ( ecma_IsValueBoolean( base)
                                     || base.m_ValueType == ECMA_TYPE_NUMBER
@@ -130,7 +130,7 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
 
   if ( is_unresolvable_reference ) // PutValue_3
   {
-    if ( ref_p->is_strict ) // PutValue_3.a
+    if ( ref.is_strict ) // PutValue_3.a
     {
       return ecma_MakeThrowValue( ecma_NewStandardError( ECMA_ERROR_REFERENCE));
     } else // PutValue_3.b
@@ -138,7 +138,7 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
       /*
        ecma_Object_t *global_object_p = ecma_GetGlobalObject();
 
-       return global_object_p->[[Put]]( ref_p->referenced_name_p, value, false);
+       return global_object_p->[[Put]]( ref.referenced_name_p, value, false);
       */
 
       JERRY_UNIMPLEMENTED();      
@@ -149,7 +149,7 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
     {
       // PutValue_4.b case 1
 
-      /* return [[Put]]( base as this, ref_p->referenced_name_p, value, ref_p->is_strict); */
+      /* return [[Put]]( base as this, ref.referenced_name_p, value, ref.is_strict); */
       JERRY_UNIMPLEMENTED();      
     } else
     {
@@ -161,10 +161,10 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
        JERRY_ASSERT( obj_p != NULL && !obj_p->m_IsLexicalEnvironment );
 
        // PutValue_sub_2
-       if ( !obj_p->[[CanPut]]( ref_p->referenced_name_p) )
+       if ( !obj_p->[[CanPut]]( ref.referenced_name_p) )
        {
          // PutValue_sub_2.a
-         if ( ref_p->is_strict )
+         if ( ref.is_strict )
          {
            return ecma_MakeThrowValue( ecma_NewStandardError( ECMA_ERROR_TYPE));
          } else
@@ -176,13 +176,13 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
        }
 
        // PutValue_sub_3
-       ecma_Property_t *own_prop = obj_p->[[GetOwnProperty]]( ref_p->referenced_name_p);
+       ecma_Property_t *own_prop = obj_p->[[GetOwnProperty]]( ref.referenced_name_p);
 
        // PutValue_sub_4
        if ( ecma_OpIsDataDescriptor( own_prop) )
        {
          // PutValue_sub_4.a
-         if ( ref_p->is_strict )
+         if ( ref.is_strict )
          {
            return ecma_MakeThrowValue( ecma_NewStandardError( ECMA_ERROR_TYPE));
          } else
@@ -194,7 +194,7 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
        }
 
        // PutValue_sub_5
-       ecma_Property_t *prop = obj_p->[[GetProperty]]( ref_p->referenced_name_p);
+       ecma_Property_t *prop = obj_p->[[GetProperty]]( ref.referenced_name_p);
 
        // PutValue_sub_6
        if ( ecma_OpIsAccessorDescriptor( prop) )
@@ -208,7 +208,7 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
        } else // PutValue_sub_7
        {
          // PutValue_sub_7.a
-         if ( ref_p->is_strict )
+         if ( ref.is_strict )
          {
            return ecma_MakeThrowValue( ecma_NewStandardError( ECMA_ERROR_TYPE));
          }
@@ -229,7 +229,7 @@ ecma_op_put_value(ecma_Reference_t *ref_p, /**< ECMA-reference */
 
     JERRY_ASSERT( lex_env_p != NULL && lex_env_p->m_IsLexicalEnvironment );
 
-    return ecma_OpSetMutableBinding( lex_env_p, ref_p->referenced_name_p, value, ref_p->is_strict);
+    return ecma_OpSetMutableBinding( lex_env_p, ref.referenced_name_p, value, ref.is_strict);
   }
 } /* ecma_op_put_value */
 
diff --git a/src/libecmaoperations/ecma-number-arithmetic.c b/src/libecmaoperations/ecma-number-arithmetic.c
new file mode 100644
index 000000000..31244c241
--- /dev/null
+++ b/src/libecmaoperations/ecma-number-arithmetic.c
@@ -0,0 +1,48 @@
+/* Copyright 2014 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ecma-globals.h"
+#include "ecma-number-arithmetic.h"
+
+/** \addtogroup ecma ---TODO---
+ * @{
+ */
+
+/**
+ * \addtogroup numberarithmetic ECMA number arithmetic operations
+ * @{
+ */
+
+/**
+ * ECMA-defined number multiplication.
+ *
+ * See also:
+ *          ECMA-262 v5, 11.5.1
+ *
+ * @return number - result of multiplication.
+ */
+ecma_Number_t
+ecma_op_number_multiply(ecma_Number_t left_num, /**< left operand */
+                        ecma_Number_t right_num) /**< right operand */
+{
+  TODO( Implement according to ECMA );
+
+  return left_num * right_num;
+} /* ecma_op_number_multiply */
+
+/**
+ * @}
+ * @}
+ */
diff --git a/src/libecmaoperations/ecma-number-arithmetic.h b/src/libecmaoperations/ecma-number-arithmetic.h
new file mode 100644
index 000000000..9477b1d5f
--- /dev/null
+++ b/src/libecmaoperations/ecma-number-arithmetic.h
@@ -0,0 +1,37 @@
+/* Copyright 2014 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ECMA_NUMBER_H
+#define ECMA_NUMBER_H
+
+#include "ecma-globals.h"
+
+/** \addtogroup ecma ---TODO---
+ * @{
+ */
+
+/**
+ * \addtogroup numberarithmetic ECMA number arithmetic operations
+ * @{
+ */
+
+extern ecma_Number_t ecma_op_number_multiply( ecma_Number_t left_num, ecma_Number_t right_num);
+
+/**
+ * @}
+ * @}
+ */
+
+#endif /* ECMA_NUMBER_H */
diff --git a/src/libecmaoperations/ecma-operations.h b/src/libecmaoperations/ecma-operations.h
index a2629664e..cec8a8edf 100644
--- a/src/libecmaoperations/ecma-operations.h
+++ b/src/libecmaoperations/ecma-operations.h
@@ -29,8 +29,8 @@
 
 extern ecma_Reference_t ecma_OpGetIdentifierReference( ecma_Object_t *lex_env_p, ecma_Char_t *name_p, bool is_strict);
 
-extern ecma_CompletionValue_t ecma_op_get_value( ecma_Reference_t *ref_p);
-extern ecma_CompletionValue_t ecma_op_put_value( ecma_Reference_t *ref_p, ecma_Value_t value);
+extern ecma_CompletionValue_t ecma_op_get_value( ecma_Reference_t ref);
+extern ecma_CompletionValue_t ecma_op_put_value( ecma_Reference_t ref, ecma_Value_t value);
 
 /**
  * @}
diff --git a/tests/unit/test_multiplication_opcode.c b/tests/unit/test_multiplication_opcode.c
new file mode 100644
index 000000000..b02b164cf
--- /dev/null
+++ b/tests/unit/test_multiplication_opcode.c
@@ -0,0 +1,43 @@
+/* Copyright 2014 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "globals.h"
+#include "interpreter.h"
+#include "mem-allocator.h"
+#include "opcodes.h"
+
+/**
+ * Unit test's main function.
+ */
+int
+main( int __unused argc,
+      char __unused **argv)
+{
+  const OPCODE test_program[] = {
+    getop_var_decl( 0),
+    getop_var_decl( 1),
+    getop_assignment( 0, OPCODE_ARG_TYPE_SMALLINT, 253),
+    getop_assignment( 1, OPCODE_ARG_TYPE_NUMBER, 2),
+    getop_multiplication( 0, 0, 1),
+    getop_exitval( 0)
+  };
+
+  mem_Init();
+
+  init_int( test_program);
+
+  return run_int() ? 0
+                   : 1;
+} /* main */