diff --git a/Makefile b/Makefile
index b0732af98..65b2051ab 100644
--- a/Makefile
+++ b/Makefile
@@ -13,29 +13,41 @@
 # limitations under the License.
 
 TARGET ?= jerry
-#CROSS_COMPILE	?= arm-none-eabi-
+CROSS_COMPILE	?= arm-none-eabi-
 OBJ_DIR = obj
 
 SOURCES = \
 	$(sort \
-	$(wildcard ./src/*.c)\
-	$(wildcard ./src/libperipherals/*.c)\
-	$(wildcard ./src/libcoreint/*.c))
+	$(wildcard ./src/*.c) \
+	$(wildcard ./src/libperipherals/*.c) \
+	$(wildcard ./src/libjsparser/*.c) \
+	$(wildcard ./src/libecmaobjects/*.c) \
+	$(wildcard ./src/liballocator/*.c) \
+	$(wildcard ./src/libcoreint/*.c) )
 
 INCLUDES = \
 	-I src \
 	-I src/libperipherals \
+	-I src/libjsparser \
+	-I src/libecmaobjects \
+	-I src/liballocator \
 	-I src/libcoreint
 
 OBJS = \
 	$(sort \
 	$(patsubst %.c,./$(OBJ_DIR)/%.o,$(notdir $(SOURCES))))
 
-CC  = $(CROSS_COMPILE)gcc-4.9
-LD  = $(CROSS_COMPILE)ld
-OBJDUMP	= $(CROSS_COMPILE)objdump
-OBJCOPY	= $(CROSS_COMPILE)objcopy
-SIZE	= $(CROSS_COMPILE)size
+CC  = gcc-4.9
+LD  = ld
+OBJDUMP	= objdump
+OBJCOPY	= objcopy
+SIZE	= size
+
+CROSS_CC  = $(CROSS_COMPILE)gcc-4.9
+CROSS_LD  = $(CROSS_COMPILE)ld
+CROSS_OBJDUMP	= $(CROSS_COMPILE)objdump
+CROSS_OBJCOPY	= $(CROSS_COMPILE)objcopy
+CROSS_SIZE	= $(CROSS_COMPILE)size
 
 # General flags
 CFLAGS ?= $(INCLUDES) -std=c99 -m32 -fdiagnostics-color=always
@@ -49,8 +61,8 @@ CFLAGS ?= $(INCLUDES) -std=c99 -m32 -fdiagnostics-color=always
 #CFLAGS += -mfpu=fpv4-sp-d16 -mfloat-abi=hard
 #CFLAGS += -ffunction-sections -fdata-sections
 
-DEBUG_OPTIONS = -g3 -O0 -DDEBUG #-fsanitize=address 
-RELEASE_OPTIONS = -Os # -Werror
+DEBUG_OPTIONS = -g3 -O0 -DDEBUG# -fsanitize=address
+RELEASE_OPTIONS = -Os -Werror
 
 DEFINES = -DMEM_HEAP_CHUNK_SIZE=256 -DMEM_HEAP_AREA_SIZE=32768
 
diff --git a/src/mem-allocator.c b/src/liballocator/mem-allocator.c
similarity index 100%
rename from src/mem-allocator.c
rename to src/liballocator/mem-allocator.c
diff --git a/src/mem-allocator.h b/src/liballocator/mem-allocator.h
similarity index 100%
rename from src/mem-allocator.h
rename to src/liballocator/mem-allocator.h
diff --git a/src/mem-heap.c b/src/liballocator/mem-heap.c
similarity index 100%
rename from src/mem-heap.c
rename to src/liballocator/mem-heap.c
diff --git a/src/mem-heap.h b/src/liballocator/mem-heap.h
similarity index 100%
rename from src/mem-heap.h
rename to src/liballocator/mem-heap.h
diff --git a/src/mem-pool.c b/src/liballocator/mem-pool.c
similarity index 100%
rename from src/mem-pool.c
rename to src/liballocator/mem-pool.c
diff --git a/src/mem-pool.h b/src/liballocator/mem-pool.h
similarity index 100%
rename from src/mem-pool.h
rename to src/liballocator/mem-pool.h
diff --git a/src/mem-poolman.c b/src/liballocator/mem-poolman.c
similarity index 100%
rename from src/mem-poolman.c
rename to src/liballocator/mem-poolman.c
diff --git a/src/mem-poolman.h b/src/liballocator/mem-poolman.h
similarity index 100%
rename from src/mem-poolman.h
rename to src/liballocator/mem-poolman.h
diff --git a/src/libcoreint/interpreter.c b/src/libcoreint/interpreter.c
index 18320c462..aa8284d71 100644
--- a/src/libcoreint/interpreter.c
+++ b/src/libcoreint/interpreter.c
@@ -18,21 +18,9 @@
 #include "parser.h"
 #include "pretty-printer.h"
 #include "interpreter.h"
-#include "opcode.h"
+#include "opcodes.h"
 
-
-void
-safe_opcode (FILE *file, opcode_ptr ptr, int arg1, int arg2)
-{
-  curr_opcode.func = ptr;
-  curr_opcode.arg1 = arg1;
-  curr_opcode.arg2 = arg2;
-
-  if (file != NULL)
-  {
-    fwrite (&curr_opcode, sizeof (struct opcode_packed), 1, file);
-  }
-}
+#include "actuators.h"
 
 void
 gen_bytecode (FILE *src_file)
@@ -51,14 +39,15 @@ gen_bytecode (FILE *src_file)
   pp_finish ();
 
   FILE *file = fopen (FILE_NAME, "w+b");
-  int i;
-
-  for (i = 0; i <= 10; i++)
-  {
-    safe_opcode (file, control_op, i, i);
-    safe_opcode (file, decl_op, i, i);
-    safe_opcode (file, call_op, i, i);
-  }
+  
+  union __opcodes op0;
+  
+  save_op_loop_inf (file, op0, 1);
+  save_op_call_1 (file, op0, 0, LED_GREEN);
+  save_op_call_1 (file, op0, 0, LED_BLUE);
+  save_op_call_1 (file, op0, 0, LED_ORANGE);
+  save_op_call_1 (file, op0, 0, LED_RED);
+  save_op_jmp (file, op0, 0);
 
   fclose (file);
 }
@@ -67,6 +56,7 @@ void
 run_int ()
 {
   FILE *file = fopen (FILE_NAME, "rb");
+  union __opcodes op_curr;
 
   if (file == NULL)
   {
@@ -76,10 +66,12 @@ run_int ()
 
   while (!feof (file))
   {
-    fread (&curr_opcode, sizeof (struct opcode_packed), 1, file);
-
-    //printf ("read %d, %d, %p\n", curr_opcode.arg1, curr_opcode.arg2, curr_opcode.func);
-    curr_opcode.func (curr_opcode.arg1, curr_opcode.arg2);
+    if (!fread (&op_curr, sizeof (union __opcodes), 1, file))
+    {
+      break;
+    }
+    
+    op_curr.opfunc_ptr (op_curr);
   }
 
   fclose (file);
diff --git a/src/libcoreint/interpreter.h b/src/libcoreint/interpreter.h
index a2f172913..ca0410143 100644
--- a/src/libcoreint/interpreter.h
+++ b/src/libcoreint/interpreter.h
@@ -13,13 +13,6 @@
  * limitations under the License.
  */
 
-/* 
- * File:   interpreter.h
- * Author: egavrin
- *
- * Created on July 2, 2014, 3:10 PM
- */
-
 #ifndef INTERPRETER_H
 #define	INTERPRETER_H
 
@@ -27,11 +20,10 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "opcode.h"
+#include "opcodes.h"
 
 #define FILE_NAME "application.bin"
 
-void safe_opcode(FILE *, opcode_ptr, int, int);
 void gen_bytecode(FILE*);
 void run_int();
 
diff --git a/src/libcoreint/opcodes.c b/src/libcoreint/opcodes.c
index 7a05f325d..864a582d4 100644
--- a/src/libcoreint/opcodes.c
+++ b/src/libcoreint/opcodes.c
@@ -13,21 +13,98 @@
  * limitations under the License.
  */
 
-#include "opcode.h"
+#include "opcodes.h"
 
 #include <stdio.h>
+#include <stdlib.h>
 
-OP_DEFINITION (control_op)
+void
+opfunc_loop_inf (union __opcodes opdata)
 {
-  printf ("control_op %d, %d\n", arg1, arg2);
+  printf ("loop_inf:idx:%d\n",
+          opdata.op_loop_inf.opcode_idx);
 }
 
-OP_DEFINITION (decl_op)
+void
+opfunc_op_call_1 (union __opcodes opdata)
 {
-  printf ("decl_op %d, %d\n", arg1, arg2);
+  printf ("op_call_1:idx:%d:%d\n",
+          opdata.op_call_1.name_literal_idx,
+          opdata.op_call_1.arg_literal_idx);
 }
 
-OP_DEFINITION (call_op)
+
+
+void
+opfunc_op_jmp (union __opcodes opdata)
 {
-  printf ("call_op %d, %d\n", arg1, arg2);
+  printf ("op_jmp:idx:%d\n",
+          opdata.op_jmp.opcode_idx);
+}
+
+void proxy_loop_inf (union __opcodes opdata)
+{
+  opdata.op_loop_inf.opfunc_ptr (opdata);
+}
+
+
+void proxy_op_call_1 (union __opcodes opdata)
+{
+  opdata.op_call_1.opfunc_ptr (opdata);
+}
+
+void proxy_op_jmp (union __opcodes opdata)
+{
+  opdata.op_jmp.opfunc_ptr (opdata);
+}
+
+
+
+void
+save_op_jmp (FILE *file, union __opcodes opdata, int arg1)
+{
+  if (file == NULL)
+  {
+    return;
+  }
+
+  opdata.opfunc_ptr = proxy_op_jmp;
+  
+  opdata.op_jmp.opfunc_ptr = opfunc_op_jmp;
+  opdata.op_jmp.opcode_idx = arg1;
+
+  fwrite (&opdata, sizeof (union __opcodes), 1, file);
+}
+
+void
+save_op_call_1 (FILE *file, union __opcodes opdata, int arg1, int arg2)
+{
+  if (file == NULL)
+  {
+    return;
+  }
+
+  opdata.opfunc_ptr = proxy_op_call_1;
+  
+  opdata.op_call_1.opfunc_ptr = opfunc_op_call_1;
+  opdata.op_call_1.name_literal_idx = arg1;
+  opdata.op_call_1.arg_literal_idx = arg2;
+
+  fwrite (&opdata, sizeof (union __opcodes), 1, file);
+}
+
+void
+save_op_loop_inf (FILE *file, union __opcodes opdata, int arg1)
+{
+  if (file == NULL)
+  {
+    return;
+  }
+    
+  opdata.opfunc_ptr = proxy_loop_inf;
+
+  opdata.op_loop_inf.opfunc_ptr = opfunc_loop_inf;
+  opdata.op_loop_inf.opcode_idx = arg1;
+
+  fwrite (&opdata, sizeof (union __opcodes), 1, file);
 }
\ No newline at end of file
diff --git a/src/libcoreint/opcodes.h b/src/libcoreint/opcodes.h
index 3571f0db4..dc5ca6bd1 100644
--- a/src/libcoreint/opcodes.h
+++ b/src/libcoreint/opcodes.h
@@ -13,43 +13,49 @@
  * limitations under the License.
  */
 
-/* 
- * File:   opcode.h
- * Author: egavrin
- *
- * Created on July 2, 2014, 3:12 PM
- */
+#ifndef OPCODES_H
+#define	OPCODES_H
 
-#ifndef OPCODE_H
-#define	OPCODE_H
+#include "stdio.h"
 
 #define OP_RET_TYPE void
-#define OP_ARG_TYPE int
+#define OP_INT_TYPE int
 
-#define OP_ATTR_DECL OP_ARG_TYPE, OP_ARG_TYPE
-#define OP_ATTR_DEF OP_ARG_TYPE arg1, OP_ARG_TYPE arg2
+union __opcodes;
 
-#define OP_DECLARATION(opname) OP_RET_TYPE opname (OP_ATTR_DECL)
-#define OP_DEFINITION(opname) OP_RET_TYPE opname (OP_ATTR_DEF)
+typedef OP_RET_TYPE (*op_proxy_ptr)(union __opcodes);
 
-// opcode ptr
-typedef OP_RET_TYPE (*opcode_ptr)(OP_ATTR_DECL);
+typedef OP_RET_TYPE (*opfunc_int_ptr)(union __opcodes);
+typedef OP_RET_TYPE (*opfunc_int_int_ptr)(union __opcodes);
 
-struct
-__attribute__ ((__packed__))
-opcode_packed
+union __opcodes 
 {
-  opcode_ptr func;
-  OP_ARG_TYPE arg1;
-  OP_ARG_TYPE arg2;
-}
-curr_opcode;
+  op_proxy_ptr opfunc_ptr;
+  
+  struct __op_loop_inf
+  {
+    opfunc_int_ptr opfunc_ptr;
+    int opcode_idx;
+  } op_loop_inf;
 
-#define INIT_OPCODE_PTR(func) opcode_ptr func_ptr = ptr;
+  /** Call with 1 argument */
+  struct __op_call_1
+  {
+    opfunc_int_int_ptr opfunc_ptr;
+    int name_literal_idx;
+    int arg_literal_idx;
+  } op_call_1;
 
-OP_DECLARATION (decl_op);
-OP_DECLARATION (call_op);
-OP_DECLARATION (control_op);
+  struct __op_jmp
+  {
+    opfunc_int_ptr opfunc_ptr;
+    int opcode_idx;
+  } op_jmp;
+} __packed;
 
-#endif	/* OPCODE_H */
+void save_op_jmp(FILE *, union __opcodes, int);
+void save_op_call_1(FILE *, union __opcodes, int, int);
+void save_op_loop_inf(FILE *, union __opcodes, int);
+
+#endif	/* OPCODES_H */
 
diff --git a/src/ctx-manager.c b/src/libecmaobjects/ctx-manager.c
similarity index 100%
rename from src/ctx-manager.c
rename to src/libecmaobjects/ctx-manager.c
diff --git a/src/ctx-manager.h b/src/libecmaobjects/ctx-manager.h
similarity index 100%
rename from src/ctx-manager.h
rename to src/libecmaobjects/ctx-manager.h
diff --git a/src/ctx-reference.c b/src/libecmaobjects/ctx-reference.c
similarity index 100%
rename from src/ctx-reference.c
rename to src/libecmaobjects/ctx-reference.c
diff --git a/src/ctx-reference.h b/src/libecmaobjects/ctx-reference.h
similarity index 100%
rename from src/ctx-reference.h
rename to src/libecmaobjects/ctx-reference.h
diff --git a/src/ecma-alloc.c b/src/libecmaobjects/ecma-alloc.c
similarity index 100%
rename from src/ecma-alloc.c
rename to src/libecmaobjects/ecma-alloc.c
diff --git a/src/ecma-alloc.h b/src/libecmaobjects/ecma-alloc.h
similarity index 100%
rename from src/ecma-alloc.h
rename to src/libecmaobjects/ecma-alloc.h
diff --git a/src/ecma-conversion.h b/src/libecmaobjects/ecma-conversion.h
similarity index 100%
rename from src/ecma-conversion.h
rename to src/libecmaobjects/ecma-conversion.h
diff --git a/src/ecma-gc.c b/src/libecmaobjects/ecma-gc.c
similarity index 100%
rename from src/ecma-gc.c
rename to src/libecmaobjects/ecma-gc.c
diff --git a/src/ecma-gc.h b/src/libecmaobjects/ecma-gc.h
similarity index 100%
rename from src/ecma-gc.h
rename to src/libecmaobjects/ecma-gc.h
diff --git a/src/ecma-globals.h b/src/libecmaobjects/ecma-globals.h
similarity index 100%
rename from src/ecma-globals.h
rename to src/libecmaobjects/ecma-globals.h
diff --git a/src/ecma-helpers.c b/src/libecmaobjects/ecma-helpers.c
similarity index 100%
rename from src/ecma-helpers.c
rename to src/libecmaobjects/ecma-helpers.c
diff --git a/src/ecma-helpers.h b/src/libecmaobjects/ecma-helpers.h
similarity index 100%
rename from src/ecma-helpers.h
rename to src/libecmaobjects/ecma-helpers.h
diff --git a/src/lexer.c b/src/libjsparser/lexer.c
similarity index 100%
rename from src/lexer.c
rename to src/libjsparser/lexer.c
diff --git a/src/lexer.h b/src/libjsparser/lexer.h
similarity index 100%
rename from src/lexer.h
rename to src/libjsparser/lexer.h
diff --git a/src/parser.c b/src/libjsparser/parser.c
similarity index 100%
rename from src/parser.c
rename to src/libjsparser/parser.c
diff --git a/src/parser.h b/src/libjsparser/parser.h
similarity index 100%
rename from src/parser.h
rename to src/libjsparser/parser.h
diff --git a/src/libperipherals/actuators.c b/src/libperipherals/actuators.c
index 609246d9a..267120650 100644
--- a/src/libperipherals/actuators.c
+++ b/src/libperipherals/actuators.c
@@ -13,4 +13,21 @@
  * limitations under the License.
  */
 
+#include <stdio.h>
 
+#include "actuators.h"
+
+void led_toggle(int led_id)
+{
+  printf("led_toogle: %d", led_id);
+}
+
+void led_on(int led_id)
+{
+  printf("led_on: %d", led_id);
+}
+
+void led_off(int led_id)
+{
+  printf("led_off: %d", led_id);
+}
\ No newline at end of file
diff --git a/src/libperipherals/actuators.h b/src/libperipherals/actuators.h
index 928f714b5..40114e69f 100644
--- a/src/libperipherals/actuators.h
+++ b/src/libperipherals/actuators.h
@@ -13,16 +13,18 @@
  * limitations under the License.
  */
 
-/* 
- * File:   actuators.h
- * Author: egavrin
- *
- * Created on July 2, 2014, 2:06 PM
- */
-
 #ifndef ACTUATORS_H
 #define	ACTUATORS_H
 
+// STM32 F4
+#define LED_GREEN      12
+#define LED_ORANGE     13
+#define LED_RED        14
+#define LED_BLUE       15
+
+void led_toggle(int);
+void led_on(int);
+void led_off(int);
 
 #endif	/* ACTUATORS_H */
 
diff --git a/src/libperipherals/common-io.h b/src/libperipherals/common-io.h
index 1193d5970..b5da0692b 100644
--- a/src/libperipherals/common-io.h
+++ b/src/libperipherals/common-io.h
@@ -13,13 +13,6 @@
  * limitations under the License.
  */
 
-/* 
- * File:   common-io.h
- * Author: egavrin
- *
- * Created on July 2, 2014, 2:14 PM
- */
-
 #ifndef COMMON_IO_H
 #define	COMMON_IO_H
 
diff --git a/src/libperipherals/sensors.h b/src/libperipherals/sensors.h
index 9a677b5f4..4240aea74 100644
--- a/src/libperipherals/sensors.h
+++ b/src/libperipherals/sensors.h
@@ -13,13 +13,6 @@
  * limitations under the License.
  */
 
-/* 
- * File:   sensors.h
- * Author: egavrin
- *
- * Created on July 2, 2014, 2:05 PM
- */
-
 #ifndef SENSORS_H
 #define	SENSORS_H