diff --git a/libftasm/Makefile b/libftasm/Makefile
index 43ddd412..e4897b34 100644
--- a/libftasm/Makefile
+++ b/libftasm/Makefile
@@ -22,11 +22,12 @@ all: $(NAME)
 $(D_OBJ)/%.o: $(D_SRC)/%.c
 	@$(MKDIR) $(D_OBJ)
 	@$(CC) $(W_FLAGS) -c $< -o $@ $(DEBUG)
-	@echo "Compiling "$<"..."
+	@echo "(libft) Compiling "$<"..."
 
 $(NAME): $(F_OBJ)
-	$(AR) $(NAME) $(F_OBJ)
-	ranlib $(NAME)
+	@$(AR) $(NAME) $(F_OBJ)
+	@echo "(libft) Linking "$@"..."
+	@ranlib $(NAME)
 
 clean:
 	$(RM) $(D_OBJ)
diff --git a/libftasm/ft_debug.c b/libftasm/ft_debug.c
index c5ee3616..4e9b18ee 100644
--- a/libftasm/ft_debug.c
+++ b/libftasm/ft_debug.c
@@ -6,7 +6,6 @@ void	ft_debug(void)
 	static int n = 0;
 
 	n++;
-	ft_putendl("----------");
-	printf(" check %02i\n", n);
-	ft_putendl("----------");
+	printf("----------\n check %02i\n----------\n", n);
+	fflush(stdout);
 }
diff --git a/libftasm/ft_diff.c b/libftasm/ft_diff.c
new file mode 100644
index 00000000..137ade0c
--- /dev/null
+++ b/libftasm/ft_diff.c
@@ -0,0 +1,6 @@
+#include "libft.h"
+
+int		ft_diff(void *a, void *b)
+{
+	return (*(int *)a - *(int *)b);
+}
diff --git a/libftasm/ft_id.c b/libftasm/ft_id.c
new file mode 100644
index 00000000..ab2bb70f
--- /dev/null
+++ b/libftasm/ft_id.c
@@ -0,0 +1,6 @@
+#include "libft.h"
+
+void	*ft_id(void *a)
+{
+	return (a);
+}
diff --git a/libftasm/ft_lst_find.c b/libftasm/ft_lst_find.c
new file mode 100644
index 00000000..716ec65e
--- /dev/null
+++ b/libftasm/ft_lst_find.c
@@ -0,0 +1,18 @@
+#include "libft.h"
+
+t_list	*ft_list_find(
+		t_list *begin_list,
+		void *data_ref,
+		int (*cmp)())
+{
+	t_list	*list_ptr;
+
+	list_ptr = begin_list;
+	while (list_ptr)
+	{
+		if ((*cmp)(list_ptr->content, data_ref) == 0)
+			return (list_ptr);
+		list_ptr = list_ptr->next;
+	}
+	return (list_ptr);
+}
diff --git a/libftasm/ft_lst_print.c b/libftasm/ft_lst_print.c
new file mode 100644
index 00000000..f681f06d
--- /dev/null
+++ b/libftasm/ft_lst_print.c
@@ -0,0 +1,13 @@
+#include "libft.h"
+
+void	ft_lst_print(t_list *list, void (*printer)())
+{
+	while (list)
+	{
+		ft_putstr("[");
+		(*printer)(*(int *)list->content);
+		ft_putstr("]->");
+		list = list->next;
+	}
+	ft_putendl("X\n");
+}
diff --git a/libftasm/ft_lst_print2.c b/libftasm/ft_lst_print2.c
new file mode 100644
index 00000000..9721f722
--- /dev/null
+++ b/libftasm/ft_lst_print2.c
@@ -0,0 +1,25 @@
+#include "libft.h"
+
+void	ft_lst_print2(t_list *list, void (*printer)())
+{
+	t_list	*list2;
+
+	while (list)
+	{
+		ft_putendl("---");
+		list2 = *(t_list**)list->content;
+		while (list2)
+		{
+			ft_putstr("[");
+			(*printer)(*(int *)list2->content);
+			ft_putstr("]->");
+			list2 = list2->next;
+		}
+		ft_putendl("X");
+		ft_putendl("---");
+		ft_putendl(" |");
+		ft_putendl(" V");
+		list = list->next;
+	}
+	ft_putendl(" X\n");
+}
diff --git a/libftasm/ft_lst_remove_if.c b/libftasm/ft_lst_remove_if.c
new file mode 100644
index 00000000..2e96a970
--- /dev/null
+++ b/libftasm/ft_lst_remove_if.c
@@ -0,0 +1,35 @@
+#include "libft.h"
+
+void	ft_lst_remove_if(
+		t_list **begin_list,
+		void *data_ref,
+		int (*cmp)())
+{
+	t_list	*last;
+	t_list	*current;
+	t_list	*tmp;
+
+	last = NULL;
+	current = *begin_list;
+	tmp = NULL;
+	fflush(stdout);
+	while (current)
+	{
+		if ((*cmp)(current->content, &data_ref) == 0)
+		{
+			if (current == *begin_list)
+				*begin_list = current->next;
+			else
+				last->next = current->next;
+			tmp = current;
+			current = current->next;
+			free(tmp);
+		}
+		else
+		{
+			last = current;
+			current = current->next;
+		}
+	}
+}
+
diff --git a/libftasm/ft_lst_remove_sub.c b/libftasm/ft_lst_remove_sub.c
new file mode 100644
index 00000000..e419b285
--- /dev/null
+++ b/libftasm/ft_lst_remove_sub.c
@@ -0,0 +1,31 @@
+#include "libft.h"
+
+void	ft_lstdelsub(t_list **alst, t_list *sub, int (*cmp)(), void (*del)(void *, size_t))
+{
+	t_list	*last;
+	t_list	*current;
+	t_list	*tmp;
+
+	last = NULL;
+	current = *alst;
+	tmp = NULL;
+	while (current && sub)
+	{
+		if ((*cmp)(current->content, sub->content) == 0)
+		{
+			if (current == *alst)
+				*alst = current->next;
+			else
+				last->next = current->next;
+			tmp = current;
+			current = current->next;
+			sub = sub->next;
+			ft_lstdelone(&tmp, del);
+		}
+		else
+		{
+			last = current;
+			current = current->next;
+		}
+	}
+}
diff --git a/libftasm/ft_lst_size.c b/libftasm/ft_lst_size.c
new file mode 100644
index 00000000..bdb1895e
--- /dev/null
+++ b/libftasm/ft_lst_size.c
@@ -0,0 +1,18 @@
+#include "libft.h"
+
+int	ft_lstsize(t_list *lst)
+{
+	int		i;
+
+	i = 0;
+	if (lst)
+	{
+		i = 1;
+		while (lst->next)
+		{
+			lst = lst->next;
+			i++;
+		}
+	}
+	return (i);
+}
diff --git a/libftasm/ft_lst_sorted_insert.c b/libftasm/ft_lst_sorted_insert.c
new file mode 100644
index 00000000..40fcd2fd
--- /dev/null
+++ b/libftasm/ft_lst_sorted_insert.c
@@ -0,0 +1,26 @@
+#include "libft.h"
+
+void	ft_lst_sorted_insert(t_list **begin_list, t_list *insert, int (*cmp)())
+{
+	t_list	*link;
+
+	link = *begin_list;
+	if (!link || (*cmp)(insert->content, link->content) < 0)
+	{
+		*begin_list = insert;
+		insert->next = link ? link : NULL;
+		return ;
+	}
+	while (link->next)
+	{
+		if ((*cmp)(insert->content, link->content) > 0
+			&& (*cmp)(insert->content, link->next->content) <= 0)
+		{
+			insert->next = link->next;
+			link->next = insert;
+			return ;
+		}
+		link = link->next;
+	}
+	link->next = insert;
+}
diff --git a/libftasm/ft_lst_sorted_merge.c b/libftasm/ft_lst_sorted_merge.c
new file mode 100644
index 00000000..eb5e0d5d
--- /dev/null
+++ b/libftasm/ft_lst_sorted_merge.c
@@ -0,0 +1,32 @@
+#include "libft.h"
+
+void	ft_lst_sorted_merge(
+		t_list **begin_list1,
+		t_list *begin_list2,
+		int (*cmp)())
+{
+	t_list	*tail;
+	t_list	*head1;
+	t_list	*head2;
+	int		comp;
+
+	if (!*begin_list1 || !begin_list2)
+	{
+		*begin_list1 = begin_list2 ? begin_list2 : *begin_list1;
+		return ;
+	}
+	comp = (*cmp)(begin_list2->content, (*begin_list1)->content);
+	head1 = (comp < 0) ? *begin_list1 : (*begin_list1)->next;
+	head2 = (comp < 0) ? begin_list2->next : begin_list2;
+	*begin_list1 = (comp < 0) ? begin_list2 : *begin_list1;
+	tail = *begin_list1;
+	while (head1 && head2)
+	{
+		comp = (*cmp)(head2->content, head1->content);
+		tail->next = (comp < 0 ? head2 : head1);
+		head1 = comp < 0 ? head1 : head1->next;
+		head2 = comp < 0 ? head2->next : head2;
+		tail = tail->next;
+	}
+	tail->next = head2 ? head2 : head1;
+}
diff --git a/libftasm/ft_lstadd.c b/libftasm/ft_lstadd.c
index e9042877..068fdaf3 100644
--- a/libftasm/ft_lstadd.c
+++ b/libftasm/ft_lstadd.c
@@ -2,6 +2,9 @@
 
 void	ft_lstadd(t_list **alst, t_list *new)
 {
-	new->next = *alst;
-	*alst = new;
+	if (new)
+	{
+		new->next = *alst;
+		*alst = new;
+	}
 }
diff --git a/libftasm/ft_lstdelone.c b/libftasm/ft_lstdelone.c
new file mode 100644
index 00000000..e2de5a66
--- /dev/null
+++ b/libftasm/ft_lstdelone.c
@@ -0,0 +1,8 @@
+#include "libft.h"
+
+void	ft_lstdelone(t_list **alst, void (*del)(void *, size_t))
+{
+	(*del)((*alst)->content, (*alst)->content_size);
+	free(*alst);
+	*alst = NULL;
+}
diff --git a/libftasm/ft_lstiter.c b/libftasm/ft_lstiter.c
new file mode 100644
index 00000000..0756d531
--- /dev/null
+++ b/libftasm/ft_lstiter.c
@@ -0,0 +1,10 @@
+#include "libft.h"
+
+void	ft_lstiter(t_list *lst, void (*f)(t_list *elem))
+{
+	while (lst)
+	{
+		(*f)(lst);
+		lst = lst->next;
+	}
+}
diff --git a/libftasm/ft_lstlast.c b/libftasm/ft_lstlast.c
index 5115a1fe..daaa94f4 100644
--- a/libftasm/ft_lstlast.c
+++ b/libftasm/ft_lstlast.c
@@ -2,7 +2,8 @@
 
 t_list	*ft_lstlast(t_list *lst)
 {
-	while (lst->next)
-		lst = lst->next;
+	if (lst)
+		while (lst->next)
+			lst = lst->next;
 	return (lst);
 }
diff --git a/libftasm/ft_lstmap.c b/libftasm/ft_lstmap.c
new file mode 100644
index 00000000..9c8a3edd
--- /dev/null
+++ b/libftasm/ft_lstmap.c
@@ -0,0 +1,24 @@
+#include "libft.h"
+
+t_list	*ft_lstmap(t_list *lst, t_list *(*f)(t_list *elem))
+{
+	t_list	*out;
+	t_list	*elem;
+
+	out = NULL;
+	while (lst)
+	{
+		elem = (*f)(lst);
+		/* printf("size=%zu\n", elem->content_size); */
+		/* printf("content=%i\n", *(int*)elem->content); */
+		/* fflush(stdout); */
+		elem = ft_lstnew(elem->content, elem->content_size);
+		/* printf("size=%zu\n", elem->content_size); */
+		/* printf("content=%i\n", *(int*)elem->content); */
+		/* fflush(stdout); */
+		ft_lsteadd(&out, elem);
+		lst = lst->next;
+	}
+	/* ft_lst_print(out, &ft_putnbr); */
+	return (out);
+}
diff --git a/libftasm/ft_lstnew.c b/libftasm/ft_lstnew.c
index 76a1ba39..fee8bc78 100644
--- a/libftasm/ft_lstnew.c
+++ b/libftasm/ft_lstnew.c
@@ -2,26 +2,25 @@
 
 t_list	*ft_lstnew(void const *content, size_t content_size)
 {
-	t_list	*link;
+	t_list	*new;
 
 	if (!content)
 	{
-		link = malloc(1);
-		if (!link)
+		new = malloc(sizeof(*new));
+		if (!new)
 			return (NULL);
-		link->next = NULL;
-		link->content_size = 0;
-		link->content = NULL;
+		new->content_size = 0;
+		new->content = NULL;
 	}
 	else
 	{
-		link = (t_list *)malloc(sizeof(link));
-		if (!link)
+		new = (t_list *)malloc(sizeof(*new));
+		if (!new)
 			return (NULL);
-		link->content_size = content_size;
-		link->next = NULL;
-		link->content = ft_memalloc(content_size);
-		ft_memcpy(link->content, content, content_size);
+		new->content_size = content_size;
+		new->content = ft_memalloc(content_size + 1);
+		ft_memcpy(new->content, content, content_size);
 	}
-	return (link);
+	new->next = NULL;
+	return (new);
 }
diff --git a/libftasm/ft_lstnew_range.c b/libftasm/ft_lstnew_range.c
new file mode 100644
index 00000000..985a5182
--- /dev/null
+++ b/libftasm/ft_lstnew_range.c
@@ -0,0 +1,16 @@
+#include "libft.h"
+
+t_list	*ft_lstnew_range(int a, int b)
+{
+	t_list	*lst;
+
+	if (a >= b)
+		return (NULL);
+	lst = NULL;
+	while (a < b)
+	{
+		b--;
+		ft_lstadd(&lst, ft_lstnew(&b, sizeof(int)));
+	}
+	return (lst);
+}
diff --git a/libftasm/ft_lstsort.c b/libftasm/ft_lstsort.c
new file mode 100644
index 00000000..1b7eb7d0
--- /dev/null
+++ b/libftasm/ft_lstsort.c
@@ -0,0 +1,37 @@
+#include "libft.h"
+
+static void	ft_list_swap(t_list **current)
+{
+	t_list	*tmp;
+
+	tmp = (*current)->next->next;
+	(*current)->next->next = (*current);
+	(*current)->next = tmp;
+}
+
+void		ft_list_sort(t_list **begin_list, int (*cmp)())
+{
+	t_list	*current;
+	t_list	*last;
+
+	current = *begin_list;
+	if (!*begin_list)
+		return ;
+	while (current->next)
+	{
+		if ((*cmp)(current->content, current->next->content) > 0)
+		{
+			if (current != *begin_list)
+				last->next = current->next;
+			else
+				*begin_list = current->next;
+			ft_list_swap(&current);
+			current = *begin_list;
+		}
+		else
+		{
+			last = current;
+			current = current->next ? current->next : current;
+		}
+	}
+}
diff --git a/libftasm/ft_memcpy.c b/libftasm/ft_memcpy.c
index 5e6f7428..c4ee7141 100644
--- a/libftasm/ft_memcpy.c
+++ b/libftasm/ft_memcpy.c
@@ -2,10 +2,15 @@
 
 void	*ft_memcpy(void *dst, const void *src, size_t n)
 {
-	size_t	i;
+	char	*c1;
+	char	*c2;
 
-	i = -1;
-	while (++i < n)
-		((char *)dst)[i] = *(char *)src++;
+	if (n == 0 || dst == src)
+		return (dst);
+	c1 = (char *)dst;
+	c2 = (char *)src;
+	while (--n)
+		*c1++ = *c2++;
+	*c1 = *c2;
 	return (dst);
 }
diff --git a/libftasm/libft.h b/libftasm/libft.h
index c2e95ece..c03f0d44 100644
--- a/libftasm/libft.h
+++ b/libftasm/libft.h
@@ -2,6 +2,7 @@
 #define LIBFT_H
 # include <string.h>
 # include <unistd.h>
+# include <stdio.h>
 # include <stdlib.h>
 # define SEP(x) (x == ' ' || x == '\t' || x == '\n')
 # define ABS(x) (((x) < 0) ? -(x) : (x))
@@ -75,9 +76,20 @@ void	ft_putendl_fd(char const *s, int fd);
 void	ft_putnbr_fd(int n, int fd);
 
 t_list	*ft_lstnew(void const *content, size_t content_size);
+void	ft_lstdelone(t_list **alst, void (*del)(void *, size_t));
 void	ft_lstadd(t_list **alst, t_list *new);
+void	ft_lstiter(t_list *lst, void (*f)(t_list *elem));
+t_list	*ft_lstmap(t_list *lst, t_list *(*f)(t_list *elem));
+
+void	ft_lst_print(t_list *list, void (*printer)());
+int		ft_lstsize(t_list *lst);
 void	ft_lsteadd(t_list **alst, t_list *new);
 void	ft_lstnadd(t_list **alst, t_list *new, int n);
-t_list	*ft_lstlast(t_list *lst)
+t_list	*ft_lstlast(t_list *lst);
+void	ft_lst_sorted_merge(t_list **begin_list1, t_list *begin_list2, int (*cmp)());
+void	ft_lst_sorted_insert(t_list **begin_list, t_list *insert, int (*cmp)());
+t_list	*ft_lstnew_range(int a, int b);
 
+int		ft_diff(void *a, void *b);
+void	*ft_id(void *a);
 #endif