diff --git a/kernel/Helpers/Makefile b/kernel/Helpers/Makefile
index de11d62..76805bd 100644
--- a/kernel/Helpers/Makefile
+++ b/kernel/Helpers/Makefile
@@ -4,11 +4,24 @@ EXEC=helpers.o
 all:$(EXEC)
 
 #----- Helpers -----
-$(EXEC): memory.cpp
-	$(CXX) -c -o $(EXEC) memory.cpp
+$(EXEC): memory.o memPrint.o
+	ld -m elf_i386 -r -o $(EXEC) $^
 #---------------
 
 
+#----- Memory -----
+memory.o: memory.cpp memory.hpp
+	$(CXX) -c -o $@ $<
+#------------------
+
+
+#----- memPrint -----
+memPrint.o: memPrint.cpp memPrint.hpp
+	$(CXX) -c -o $@ $<
+#-------------------
+
+
+
 #----- Other -----
 .PHONY:clean
 
diff --git a/kernel/Helpers/helpers.o b/kernel/Helpers/helpers.o
deleted file mode 100644
index 9141e7d..0000000
Binary files a/kernel/Helpers/helpers.o and /dev/null differ
diff --git a/kernel/Helpers/memPrint.cpp b/kernel/Helpers/memPrint.cpp
index 92112e9..bde4702 100644
--- a/kernel/Helpers/memPrint.cpp
+++ b/kernel/Helpers/memPrint.cpp
@@ -1,10 +1,11 @@
 #include "./memPrint.hpp"
 
-
+//Constructor
 memPrint::memPrint(){
-	
+
 }
 
+//Destructor
 memPrint::~memPrint(){
-	
+
 }
diff --git a/kernel/Helpers/memPrint.hpp b/kernel/Helpers/memPrint.hpp
index 7b67778..841be86 100644
--- a/kernel/Helpers/memPrint.hpp
+++ b/kernel/Helpers/memPrint.hpp
@@ -26,13 +26,19 @@ enum colorBios{
 //Type def for biosColor
 typedef enum colorBios colorBios;
 
+
+//Class to print char on screen using Video Ram mapping
 class memPrint{
 
     private:
-		
+
 
     public:
+
+        //Constructor
 		memPrint();
+
+		//Destructor
 		~memPrint();
 };
 
diff --git a/kernel/Helpers/memory.cpp b/kernel/Helpers/memory.cpp
index 741a094..8ace044 100644
--- a/kernel/Helpers/memory.cpp
+++ b/kernel/Helpers/memory.cpp
@@ -1,23 +1,31 @@
 #include "./memory.hpp"
 #include "./types.hpp"
 
+//Fonction to copy data into memory
 int memcpy(u32 source, u32 dest, u32 size){
 
+    //Init source and destination pointer
 	u32 *sourceTmp=(u32 *)source;
 	u32 *destTmp=(u32 *)dest;
 
+    //Init progression
 	u32 progress=0;
 
+    //Start copy
 	while(progress != size){
 
+        //Copy
 		*destTmp=*sourceTmp;
 
+        //Update source and destination
 		sourceTmp++;
 		destTmp++;
 
+        //Update progression
 		progress++;
 	}
 
+    //End and return progression
 	return progress;
 
 }
diff --git a/kernel/Helpers/memory.hpp b/kernel/Helpers/memory.hpp
index 07045c8..ddc522c 100644
--- a/kernel/Helpers/memory.hpp
+++ b/kernel/Helpers/memory.hpp
@@ -3,7 +3,7 @@
 
 #include "./types.hpp"
 
-
+//Fonction to copy data into memory
 int memcpy(u32 source, u32 dest, u32 size);
 
 
diff --git a/kernel/Makefile b/kernel/Makefile
index 0ad6f60..a5694c4 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -34,6 +34,7 @@ Helpers/helpers.o:
 
 clean:
 	cd ./GDT/ && make clean
+	cd ./Helpers/ && make clean
 	-rm ./*.o
 	-rm ./$(EXEC)
 #-----------------
diff --git a/kernel/entry.asm b/kernel/entry.asm
index f1ab9b8..1ec44db 100644
--- a/kernel/entry.asm
+++ b/kernel/entry.asm
@@ -19,6 +19,7 @@ dd 0x1BADB002
 ;----- End -----
 
 
+;Run kernel
 begin:
 	call _boot ;Start kernel
 
diff --git a/kernel/main.cpp b/kernel/main.cpp
index 0b80564..c958ac0 100644
--- a/kernel/main.cpp
+++ b/kernel/main.cpp
@@ -1,10 +1,17 @@
 //To load GDT
 #include "GDT/gdt.hpp"
+#include "./Helpers/memPrint.hpp"
 
 
 //----- PiegOS kernel main -----
 int  main(){
 
+    //Test print a char
+	char* letter=(char*)0xB8A00;
+	*letter='H';
+	letter++;
+	*letter=(GREEN << 4) | BLUE;
+
     //Infinite loop
 	while(1);
 
@@ -22,7 +29,7 @@ extern "C" void _boot(){
     Gdt gdt;
 
     //Load Gdt into memory
-    gdt.loadGdt();
+    //gdt.loadGdt();
 
     //Call main function
     main();