diff --git a/libftasm/ft_lstnew.c b/libftasm/ft_lstnew.c
new file mode 100644
index 00000000..d0891919
--- /dev/null
+++ b/libftasm/ft_lstnew.c
@@ -0,0 +1,25 @@
+#include "libft.h"
+
+t_list	*ft_lstnew(void const *content, size_t content_size)
+{
+	t_list	*link;
+	size_t	i;
+
+	link->next = NULL;
+	if (!content)
+	{
+		link->content_size = 0;
+		link->content = NULL;
+	}
+	else
+	{
+		link->content_size = content_size;
+		link->content = ft_memalloc(content_size);
+		if (!link->content)
+			return (NULL);
+		i = -1;
+		while (++i < content_size)
+			((char *)link->content)[i] = ((char *)content)[i];
+	}
+	return (link)
+}
diff --git a/libftasm/libft.h b/libftasm/libft.h
index 105c3e59..ab50d68e 100644
--- a/libftasm/libft.h
+++ b/libftasm/libft.h
@@ -8,6 +8,13 @@
 # define NEG(x) (((x) < 0) ? 1 : 0)
 # define POS(x) (((x) > 0) ? 1 : 0)
 
+typedef struct	s_list
+{
+	void			*content;
+	size_t			content_size;
+	struct s_list	*next;
+}				t_list;
+
 void	*ft_memset(void *b, int c, size_t len);
 void	ft_bzero(void *s, size_t n);
 void	*ft_memcpy(void *dst, const void *src, size_t n);
@@ -36,6 +43,7 @@ int		ft_isascii(int c);
 int		ft_isprint(int c);
 int		ft_toupper(int c);
 int		ft_tolower(int c);
+
 void	*ft_memalloc(size_t size);
 void	ft_memdel(void **ap);
 char	*ft_strnew(size_t size);
@@ -61,4 +69,7 @@ void	ft_putstr_fd(char const *s, int fd);
 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_lstadd(t_list **alst, t_list *new);
+
 #endif