diff --git a/libftasm/includes/btree.h b/libftasm/includes/btree.h
new file mode 100644
index 00000000..c31ca5a2
--- /dev/null
+++ b/libftasm/includes/btree.h
@@ -0,0 +1,33 @@
+#ifndef BTREE_H
+# define BTREE_H
+
+#include "libft.h"
+
+typedef struct s_btree		t_btree;
+
+struct	s_btree
+{
+	void			*item;
+	size_t			content_size;
+	struct s_btree	*left;
+	struct s_btree	*right;
+};
+
+t_btree	*btree_create_node(void const *item, size_t content_size);
+
+void	btree_insert_data(
+		t_btree **root,
+		void *item,
+		size_t content_size,
+		int (*cmpf)(void *, void *));
+
+void	*btree_search_item(t_btree *root,
+		void *data_ref, int (*cmpf)(void *, void *));
+
+int		btree_level_count(t_btree *root);
+void	btree_apply_prefix(t_btree *root, void (*applyf)(void *));
+void	btree_apply_infix(t_btree *root, void (*applyf)(void *));
+void	btree_apply_suffix(t_btree *root, void (*applyf)(void *));
+void	btree_print(t_btree* tree, void (*printer)(t_btree *tree));
+
+#endif
diff --git a/libftasm/includes/dlst.h b/libftasm/includes/dlst.h
index ffcf518f..42d73729 100644
--- a/libftasm/includes/dlst.h
+++ b/libftasm/includes/dlst.h
@@ -23,12 +23,13 @@ struct	s_dlist
 
 typedef struct s_dlist	t_dlist;
 
-void	ft_dlst_add_after(t_dlist **alst, t_dlist *new);
-void	ft_dlst_add_before(t_dlist **alst, t_dlist *new);
-void	ft_dlst_delone(t_dlist **alst, void (*del)(void *, size_t));
-int		ft_dlst_size(t_dlist *list);
-t_dlist	*ft_dlst_new(void const *content, size_t content_size);
-t_dlist	*ft_dlst_last(t_dlist *list);
+void	ft_dlstadd_after(t_dlist **alst, t_dlist *new);
+void	ft_dlstadd_before(t_dlist **alst, t_dlist *new);
+void	ft_dlstdel(t_dlist **alst, void (*del)(void *, size_t));
+void	ft_dlstdelone(t_dlist **alst, void (*del)(void *, size_t));
+int		ft_dlstsize(t_dlist *list);
+t_dlist	*ft_dlstnew(void const *content, size_t content_size);
+t_dlist	*ft_dlstlast(t_dlist *list);
 char	*ft_dlsttostr(t_dlist *list);
 
 #endif
diff --git a/libftasm/includes/libft.h b/libftasm/includes/libft.h
index 5a0c26ca..91e507d6 100644
--- a/libftasm/includes/libft.h
+++ b/libftasm/includes/libft.h
@@ -6,7 +6,11 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/07 13:49:04 by jhalford          #+#    #+#             */
+<<<<<<< HEAD
 /*   Updated: 2016/11/16 10:53:34 by jhalford         ###   ########.fr       */
+=======
+/*   Updated: 2016/11/14 16:31:04 by jhalford         ###   ########.fr       */
+>>>>>>> a3f7d30e3fc482af179207682b48ae052d422bdf
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -16,6 +20,7 @@
 # include "ft_xattr.h"
 # include "lst.h"
 # include "dlst.h"
+# include "btree.h"
 
 # include <string.h>
 # include <unistd.h>
@@ -31,6 +36,14 @@
 # define FT_MAX(a, b) ((a) > (b) ? (a) : (b))
 # define FT_DIST(a, b) (FT_ABS((a) - (b)))
 
+typedef struct s_stof	t_stof;
+
+struct	s_stof
+{
+	char	*name;
+	int		(*f)();
+};
+
 void	ft_debug(void);
 
 void	*ft_memset(void *b, int c, size_t len);
@@ -105,12 +118,14 @@ size_t	ft_ilen_base(int n, int base);
 size_t	ft_uilen(unsigned int n);
 size_t	ft_lllen(long long n);
 size_t	ft_lllen_base(long long n, int base);
+int		ft_addrcmp(void *a, void *b);
 
+char	**ft_sstradd(char **list, char *new);
 void	ft_sstrsort(char **list, int size, int (*cmp)());
 void	ft_sstrprint(char **list, char sep);
 char	**ft_sstrdup(char **list);
-char	**ft_sstradd(char **list, char *new);
 void	ft_sstrdel(char **sstr, int index);
+void	ft_sstrfree(char **sstr);
 
 int		ft_time_isrecent(time_t event);
 
@@ -118,4 +133,8 @@ char	*ft_path_notdir(char *path);
 
 int		ft_printf(const char *format, ...);
 int		ft_dprintf(int fd, const char *format, ...);
+
+char	*ft_getenv(char **env, char *key);
+
+void	*ft_realloc(void *data, int size);
 #endif
diff --git a/libftasm/src/btree/btree_apply_by_level.c b/libftasm/src/btree/btree_apply_by_level.c
new file mode 100644
index 00000000..0cb2c4bd
--- /dev/null
+++ b/libftasm/src/btree/btree_apply_by_level.c
@@ -0,0 +1,46 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_apply_by_level.c                             :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/19 12:06:15 by jhalford          #+#    #+#             */
+/*   Updated: 2016/08/23 17:49:17 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+int	g_level = 0;
+
+static void	btree_apply_to_level(
+			t_btree *root,
+			int level,
+			int is_first_elem,
+			void (*applyf)(void *item, int current_level, int is_first_elem))
+{
+	if (level == g_level)
+	{
+		(*applyf)(root->item, level, is_first_elem);
+		return ;
+	}
+	if (root->left)
+		btree_apply_to_level(root->left, level + 1, is_first_elem, applyf);
+	if (root->right)
+		btree_apply_to_level(root->right, level + 1, 0, applyf);
+}
+
+void	btree_apply_by_level(
+		t_btree *root,
+		void (*applyf)(void *item, int current_level, int is_first_elem))
+{
+	int		height;
+
+	height = btree_level_count(root);
+	while (g_level < height)
+	{
+		btree_apply_to_level(root, 0, 1, applyf);
+		g_level++;
+	}
+}
diff --git a/libftasm/src/btree/btree_apply_infix.c b/libftasm/src/btree/btree_apply_infix.c
new file mode 100644
index 00000000..f4b95302
--- /dev/null
+++ b/libftasm/src/btree/btree_apply_infix.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_create_node.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/16 13:43:51 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 11:58:47 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+void	btree_apply_infix(t_btree *root, void (*applyf)(void *))
+{
+	if (root->left)
+		btree_apply_infix(root->left, applyf);
+	(*applyf)(root->item);
+	if (root->right)
+		btree_apply_infix(root->right, applyf);
+	return ;
+}
diff --git a/libftasm/src/btree/btree_apply_prefix.c b/libftasm/src/btree/btree_apply_prefix.c
new file mode 100644
index 00000000..e7e4332c
--- /dev/null
+++ b/libftasm/src/btree/btree_apply_prefix.c
@@ -0,0 +1,22 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_create_node.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/16 13:43:51 by jhalford          #+#    #+#             */
+/*   Updated: 2016/08/18 21:06:44 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+void	btree_apply_prefix(t_btree *root, void (*applyf)(void *))
+{
+	(*applyf)(root->item);
+	if (root->left)
+		btree_apply_prefix(root->left, applyf);
+	if (root->right)
+		btree_apply_prefix(root->right, applyf);
+}
diff --git a/libftasm/src/btree/btree_apply_suffix.c b/libftasm/src/btree/btree_apply_suffix.c
new file mode 100644
index 00000000..08f01881
--- /dev/null
+++ b/libftasm/src/btree/btree_apply_suffix.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_create_node.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/16 13:43:51 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 16:08:23 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+void	btree_apply_suffix(t_btree *root, void (*applyf)(void *))
+{
+	if (root->left)
+		btree_apply_suffix(root->left, applyf);
+	if (root->right)
+		btree_apply_suffix(root->right, applyf);
+	(*applyf)(root->item);
+	return ;
+}
diff --git a/libftasm/src/btree/btree_create_node.c b/libftasm/src/btree/btree_create_node.c
new file mode 100644
index 00000000..18f50233
--- /dev/null
+++ b/libftasm/src/btree/btree_create_node.c
@@ -0,0 +1,35 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_create_node.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/16 13:43:51 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 16:11:49 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+t_btree	*btree_create_node(void const *item, size_t content_size)
+{
+	t_btree	*new;
+
+	if (!(new = (t_btree *)malloc(sizeof(t_btree))))
+		return (NULL);
+	new->left = 0;
+	new->right = 0;
+	if (!item)
+	{
+		new->content_size = 0;
+		new->item = NULL;
+	}
+	else
+	{
+		new->content_size = content_size;
+		new->item = ft_memalloc(content_size + 1);
+		ft_memcpy(new->item, item, content_size);
+	}
+	return (new);
+}
diff --git a/libftasm/src/btree/btree_insert_data.c b/libftasm/src/btree/btree_insert_data.c
new file mode 100644
index 00000000..a6e262fc
--- /dev/null
+++ b/libftasm/src/btree/btree_insert_data.c
@@ -0,0 +1,43 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_create_node.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/16 13:43:51 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 16:12:47 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+void	btree_insert_data(
+		t_btree **root,
+		void *item,
+		size_t content_size,
+		int (*cmpf)(void *, void *))
+{
+	t_btree	*node;
+
+	if (!*root)
+	{
+		*root = btree_create_node(item, content_size);
+		return ;
+	}
+	node = *root;
+	if ((*cmpf)(item, node->item) < 0)
+	{
+		if (node->left)
+			btree_insert_data(&node->left, item, content_size, cmpf);
+		else
+			node->left = btree_create_node(item, content_size);
+	}
+	else
+	{
+		if (node->right)
+			btree_insert_data(&node->right, item, content_size, cmpf);
+		else
+			node->right = btree_create_node(item, content_size);
+	}
+}
diff --git a/libftasm/src/btree/btree_level_count.c b/libftasm/src/btree/btree_level_count.c
new file mode 100644
index 00000000..41248654
--- /dev/null
+++ b/libftasm/src/btree/btree_level_count.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_create_node.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/16 13:43:51 by jhalford          #+#    #+#             */
+/*   Updated: 2016/08/25 17:46:00 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+int	btree_level_count(t_btree *root)
+{
+	return (root
+			? 1 + FT_MAX(btree_level_count(root->left),
+				btree_level_count(root->right))
+			: 0);
+}
diff --git a/libftasm/src/btree/btree_print.c b/libftasm/src/btree/btree_print.c
new file mode 100644
index 00000000..c236a5d2
--- /dev/null
+++ b/libftasm/src/btree/btree_print.c
@@ -0,0 +1,41 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_print.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/11/14 18:06:24 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 18:26:32 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+static void	print_offset(int offset)
+{
+	int i;
+	for (i = 0; i < offset; ++i)
+	{
+		ft_putstr(" ");
+	}
+}
+
+void		btree_print(t_btree* tree, void (*printer)(t_btree *tree))
+{
+	static int offset = 0;
+
+	print_offset(offset);
+
+	if (tree == NULL)
+	{
+		ft_putendl("-");
+		return;
+	}
+	(*printer)(tree);
+
+	offset += 3;
+	btree_print(tree->right, printer);
+	btree_print(tree->left, printer);
+	offset -= 3;
+}
diff --git a/libftasm/src/btree/btree_search_item.c b/libftasm/src/btree/btree_search_item.c
new file mode 100644
index 00000000..a7a1eb68
--- /dev/null
+++ b/libftasm/src/btree/btree_search_item.c
@@ -0,0 +1,30 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   btree_create_node.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/08/16 13:43:51 by jhalford          #+#    #+#             */
+/*   Updated: 2016/08/23 19:04:56 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "btree.h"
+
+void	*btree_search_item(t_btree *root,
+		void *data_ref, int (*cmpf)(void *, void *))
+{
+	void *out;
+
+	out = NULL;
+	if (root)
+	{
+		out = btree_search_item(root->left, data_ref, cmpf);
+		if (!out && ((*cmpf)(root->item, data_ref) == 0))
+			out = root->item;
+		if (!out)
+			out = btree_search_item(root->right, data_ref, cmpf);
+	}
+	return (out);
+}
diff --git a/libftasm/src/dlst/ft_dlst_add_after.c b/libftasm/src/dlst/ft_dlstadd_after.c
similarity index 95%
rename from libftasm/src/dlst/ft_dlst_add_after.c
rename to libftasm/src/dlst/ft_dlstadd_after.c
index c1fa36eb..caec607d 100644
--- a/libftasm/src/dlst/ft_dlst_add_after.c
+++ b/libftasm/src/dlst/ft_dlstadd_after.c
@@ -12,7 +12,7 @@
 
 #include "libft.h"
 
-void	ft_dlst_add_after(t_dlist **alst, t_dlist *new)
+void	ft_dlstadd_after(t_dlist **alst, t_dlist *new)
 {
 	if (new)
 	{
diff --git a/libftasm/src/dlst/ft_dlst_add_before.c b/libftasm/src/dlst/ft_dlstadd_before.c
similarity index 95%
rename from libftasm/src/dlst/ft_dlst_add_before.c
rename to libftasm/src/dlst/ft_dlstadd_before.c
index 5025986c..e2d6b2e8 100644
--- a/libftasm/src/dlst/ft_dlst_add_before.c
+++ b/libftasm/src/dlst/ft_dlstadd_before.c
@@ -12,7 +12,7 @@
 
 #include "libft.h"
 
-void	ft_dlst_add_before(t_dlist **alst, t_dlist *new)
+void	ft_dlstadd_before(t_dlist **alst, t_dlist *new)
 {
 	if (new)
 	{
diff --git a/libftasm/src/dlst/ft_dlstdel.c b/libftasm/src/dlst/ft_dlstdel.c
new file mode 100644
index 00000000..24adc231
--- /dev/null
+++ b/libftasm/src/dlst/ft_dlstdel.c
@@ -0,0 +1,41 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_dlstdel.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/11/14 17:55:40 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 17:57:46 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+static void	ft_dlstdelback(t_dlist **alst, void (*del)(void *, size_t))
+{
+	if (alst && *alst && del)
+	{
+		ft_dlstdelback(&(*alst)->prev, del);
+		ft_dlstdelone(alst, del);
+	}
+}
+
+static void	ft_dlstdelfront(t_dlist **alst, void (*del)(void *, size_t))
+{
+	if (alst && *alst && del)
+	{
+		ft_dlstdelfront(&(*alst)->next, del);
+		ft_dlstdelone(alst, del);
+	}
+}
+
+void	ft_dlstdel(t_dlist **alst, void (*del)(void *, size_t))
+{
+	if (alst && *alst && del)
+	{
+		ft_dlstdelback(&(*alst)->prev, del);
+		ft_dlstdelfront(&(*alst)->next, del);
+		ft_dlstdelone(alst, del);
+	}
+}
diff --git a/libftasm/src/dlst/ft_dlst_delone.c b/libftasm/src/dlst/ft_dlstdelone.c
similarity index 89%
rename from libftasm/src/dlst/ft_dlst_delone.c
rename to libftasm/src/dlst/ft_dlstdelone.c
index ff83b296..55826853 100644
--- a/libftasm/src/dlst/ft_dlst_delone.c
+++ b/libftasm/src/dlst/ft_dlstdelone.c
@@ -6,13 +6,13 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/07 13:27:13 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/07 13:27:13 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/14 17:52:58 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
 #include "libft.h"
 
-void	ft_dlst_delone(t_dlist **alst, void (*del)(void *, size_t))
+void	ft_dlstdelone(t_dlist **alst, void (*del)(void *, size_t))
 {
 	t_dlist	*tmp;
 
diff --git a/libftasm/src/dlst/ft_dlst_last.c b/libftasm/src/dlst/ft_dlstlast.c
similarity index 96%
rename from libftasm/src/dlst/ft_dlst_last.c
rename to libftasm/src/dlst/ft_dlstlast.c
index 9772cc0c..1286c32c 100644
--- a/libftasm/src/dlst/ft_dlst_last.c
+++ b/libftasm/src/dlst/ft_dlstlast.c
@@ -12,7 +12,7 @@
 
 #include "libft.h"
 
-t_dlist	*ft_dlst_last(t_dlist *list)
+t_dlist	*ft_dlstlast(t_dlist *list)
 {
 	while (list && list->next)
 		list = list->next;
diff --git a/libftasm/src/dlst/ft_dlst_new.c b/libftasm/src/dlst/ft_dlstnew.c
similarity index 95%
rename from libftasm/src/dlst/ft_dlst_new.c
rename to libftasm/src/dlst/ft_dlstnew.c
index 8725382f..dfe32bdc 100644
--- a/libftasm/src/dlst/ft_dlst_new.c
+++ b/libftasm/src/dlst/ft_dlstnew.c
@@ -12,7 +12,7 @@
 
 #include "libft.h"
 
-t_dlist	*ft_dlst_new(void const *content, size_t content_size)
+t_dlist	*ft_dlstnew(void const *content, size_t content_size)
 {
 	t_dlist	*new;
 
diff --git a/libftasm/src/dlst/ft_dlstrtostr.c b/libftasm/src/dlst/ft_dlstrtostr.c
index be96ba71..e92e4d8a 100644
--- a/libftasm/src/dlst/ft_dlstrtostr.c
+++ b/libftasm/src/dlst/ft_dlstrtostr.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/07 13:27:29 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/07 13:31:08 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/14 16:13:24 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -20,7 +20,7 @@ char	*ft_dlsttostr(t_dlist *list)
 		return (NULL);
 	while (list->prev)
 		list = list->prev;
-	str = (char *)ft_strnew(sizeof(char) * (ft_dlst_size(list) + 2));
+	str = (char *)ft_strnew(sizeof(char) * (ft_dlstsize(list) + 2));
 	while (list)
 	{
 		ft_strcat(str, (char *)list->content);
diff --git a/libftasm/src/dlst/ft_dlst_size.c b/libftasm/src/dlst/ft_dlstsize.c
similarity index 97%
rename from libftasm/src/dlst/ft_dlst_size.c
rename to libftasm/src/dlst/ft_dlstsize.c
index 9777bb11..b536efa2 100644
--- a/libftasm/src/dlst/ft_dlst_size.c
+++ b/libftasm/src/dlst/ft_dlstsize.c
@@ -12,7 +12,7 @@
 
 #include "libft.h"
 
-int		ft_dlst_size(t_dlist *list)
+int		ft_dlstsize(t_dlist *list)
 {
 	int		size;
 	t_dlist	*tmp;
diff --git a/libftasm/src/env/ft_getenv.c b/libftasm/src/env/ft_getenv.c
new file mode 100644
index 00000000..3c733605
--- /dev/null
+++ b/libftasm/src/env/ft_getenv.c
@@ -0,0 +1,27 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_getenv.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/11/10 14:30:00 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/10 14:30:27 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+char	*ft_getenv(char **env, char *key)
+{
+	if (!env)
+		return (NULL);
+	while (*env)
+	{
+		/* ft_printf("%s\n", env[i]); */
+		if (ft_strcmp(*env, key) == '=')
+			return (*env + ft_strlen(key) + 1);
+		env++;
+	}
+	return (NULL);
+}
diff --git a/libftasm/src/ft_printf/ft_conversion.c b/libftasm/src/ft_printf/ft_conversion.c
index 3dbd8429..e1908f19 100644
--- a/libftasm/src/ft_printf/ft_conversion.c
+++ b/libftasm/src/ft_printf/ft_conversion.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/07 13:31:48 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/07 16:56:28 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/10 12:59:25 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/ft_printf/ft_fmt_validate_flags.c b/libftasm/src/ft_printf/ft_fmt_validate_flags.c
index 82962cf4..cba3f389 100644
--- a/libftasm/src/ft_printf/ft_fmt_validate_flags.c
+++ b/libftasm/src/ft_printf/ft_fmt_validate_flags.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/07 16:53:07 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/07 17:25:47 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/10 13:02:07 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -38,12 +38,15 @@ static void	ft_fmt_validate_flag_conv(t_fmt *fmt)
 
 	i = 0;
 	flag_ptr = fmt->flags;
+	while (fmt->conversion != g_convs[i].id)
+		i++;
 	while (*flag_ptr)
 	{
 		flag = *flag_ptr;
 		if (!ft_strchr(g_convs[i].allowed_flags, flag))
 		{
 			ft_fmt_error_flag_conv(flag, fmt->conversion);
+			/* ft_printf("allowed flags:%s\n", g_convs[i].allowed_flags); */
 			if (flag == '#')
 				*flag_ptr = '.';
 		}
@@ -56,8 +59,6 @@ void		ft_fmt_validate_flags(t_fmt *fmt)
 	int		i;
 
 	i = 0;
-	while (fmt->conversion != g_convs[i].id)
-		i++;
 	ft_fmt_validate_flag_conv(fmt);
 	ft_fmt_validate_flag_flag(fmt);
 }
diff --git a/libftasm/src/ft_printf/ft_printf.c b/libftasm/src/ft_printf/ft_printf.c
index a782bd0d..696e7a4f 100644
--- a/libftasm/src/ft_printf/ft_printf.c
+++ b/libftasm/src/ft_printf/ft_printf.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/07 13:33:27 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/16 10:55:16 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/16 10:57:25 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/ft_printf/ft_printf_parse.c b/libftasm/src/ft_printf/ft_printf_parse.c
index 86a6cf74..fe3d2674 100644
--- a/libftasm/src/ft_printf/ft_printf_parse.c
+++ b/libftasm/src/ft_printf/ft_printf_parse.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/07 13:33:24 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/07 16:56:47 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/10 12:59:50 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/get_next_line/get_next_line.c b/libftasm/src/get_next_line/get_next_line.c
index 3263c520..cc8d1cdf 100644
--- a/libftasm/src/get_next_line/get_next_line.c
+++ b/libftasm/src/get_next_line/get_next_line.c
@@ -13,7 +13,7 @@
 #include "libft.h"
 #define BUFF_SIZE 32
 
-static char		*ft_realloc(char *line, int size)
+static char		*ft_strrealloc(char *line, int size)
 {
 	char	*str;
 
@@ -41,7 +41,7 @@ static int		ft_loop_read(int fd, char **line, char (*save)[])
 			ft_strcat(*line, buf);
 			return (1);
 		}
-		if ((*line = ft_realloc(*line, ret)) == NULL)
+		if ((*line = ft_strrealloc(*line, ret)) == NULL)
 			return (-1);
 		ft_strcat(*line, buf);
 	}
diff --git a/libftasm/src/lst/ft_lst_delif.c b/libftasm/src/lst/ft_lst_delif.c
index 2e319aa9..b1d11a0a 100644
--- a/libftasm/src/lst/ft_lst_delif.c
+++ b/libftasm/src/lst/ft_lst_delif.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/04 11:09:12 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/08 15:00:24 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/14 16:55:27 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/lst/ft_lstdelone.c b/libftasm/src/lst/ft_lstdelone.c
index d9b05960..a360b486 100644
--- a/libftasm/src/lst/ft_lstdelone.c
+++ b/libftasm/src/lst/ft_lstdelone.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 14:57:15 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/08 13:45:13 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/14 15:50:00 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/lst/ft_lstnew.c b/libftasm/src/lst/ft_lstnew.c
index 1ad8c10a..302aff27 100644
--- a/libftasm/src/lst/ft_lstnew.c
+++ b/libftasm/src/lst/ft_lstnew.c
@@ -16,23 +16,19 @@ t_list	*ft_lstnew(void const *content, size_t content_size)
 {
 	t_list	*new;
 
+	if (!(new = (t_list *)malloc(sizeof(*new))))
+		return (NULL);
+	new->next = NULL;
 	if (!content)
 	{
-		new = malloc(sizeof(*new));
-		if (!new)
-			return (NULL);
 		new->content_size = 0;
 		new->content = NULL;
 	}
 	else
 	{
-		new = (t_list *)malloc(sizeof(*new));
-		if (!new)
-			return (NULL);
 		new->content_size = content_size;
 		new->content = ft_memalloc(content_size + 1);
 		ft_memcpy(new->content, content, content_size);
 	}
-	new->next = NULL;
 	return (new);
 }
diff --git a/libftasm/src/math/ft_addrcmp.c b/libftasm/src/math/ft_addrcmp.c
new file mode 100644
index 00000000..f3b4f790
--- /dev/null
+++ b/libftasm/src/math/ft_addrcmp.c
@@ -0,0 +1,18 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_addrcmp.h                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/11/14 15:59:10 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 15:59:39 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+int		ft_addrcmp(void *a, void *b)
+{
+	return (a - b);
+}
diff --git a/libftasm/src/mem/ft_memalloc.c b/libftasm/src/mem/ft_memalloc.c
index bb1bd18d..505043f8 100644
--- a/libftasm/src/mem/ft_memalloc.c
+++ b/libftasm/src/mem/ft_memalloc.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 14:57:25 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/08 13:15:50 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/11 17:40:57 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/mem/ft_memchr.c b/libftasm/src/mem/ft_memchr.c
index 47eccf3b..96ddf009 100644
--- a/libftasm/src/mem/ft_memchr.c
+++ b/libftasm/src/mem/ft_memchr.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 14:57:28 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/03 14:57:29 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/11 17:41:21 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/mem/ft_memcpy.c b/libftasm/src/mem/ft_memcpy.c
index 37e9051f..0b95291e 100644
--- a/libftasm/src/mem/ft_memcpy.c
+++ b/libftasm/src/mem/ft_memcpy.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 14:57:31 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/08 13:17:29 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/11 17:39:00 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/mem/ft_memmove.c b/libftasm/src/mem/ft_memmove.c
index 996c5cb3..904d1aca 100644
--- a/libftasm/src/mem/ft_memmove.c
+++ b/libftasm/src/mem/ft_memmove.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 14:57:34 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/07 13:46:42 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/11 17:41:14 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/mem/ft_realloc.c b/libftasm/src/mem/ft_realloc.c
new file mode 100644
index 00000000..f64a50d0
--- /dev/null
+++ b/libftasm/src/mem/ft_realloc.c
@@ -0,0 +1,25 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_realloc.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/11/11 17:37:53 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/11 17:41:30 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+void	*ft_realloc(void *data, int size)
+{
+	void	*new;
+
+	ft_printf("realloc befor: '%s'\n", data);
+	new = ft_memalloc(size);
+	ft_memcpy(new, data, ft_strlen(data));
+	ft_memdel(&data);
+	ft_printf("realloc after: '%s'\n", new);
+	return (new);
+}
diff --git a/libftasm/src/sstr/ft_sstradd.c b/libftasm/src/sstr/ft_sstradd.c
index 4ec7bac9..55cad1f1 100644
--- a/libftasm/src/sstr/ft_sstradd.c
+++ b/libftasm/src/sstr/ft_sstradd.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 18:03:58 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/03 18:04:23 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/14 16:31:02 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -22,7 +22,8 @@ char	**ft_sstradd(char **sstr, char *new)
 	size = 0;
 	while (sstr && sstr[size])
 		size++;
-	newlist = (char **)malloc(sizeof(char *) * (size + 3));
+	if (!(newlist = (char **)malloc(sizeof(char *) * (size + 2))))
+		return (NULL);
 	while (sstr && *sstr)
 		newlist[i++] = *sstr++;
 	newlist[i++] = new;
diff --git a/libftasm/src/sstr/ft_sstrfree.c b/libftasm/src/sstr/ft_sstrfree.c
new file mode 100644
index 00000000..14a833eb
--- /dev/null
+++ b/libftasm/src/sstr/ft_sstrfree.c
@@ -0,0 +1,30 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_sstrfree.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2016/11/08 17:01:24 by jhalford          #+#    #+#             */
+/*   Updated: 2016/11/14 11:08:19 by jhalford         ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+void	ft_sstrfree(char **sstr)
+{
+	int		i;
+
+	i = 0;
+	if (sstr)
+	{
+		while (sstr[i])
+		{
+			ft_strdel(sstr + i);
+			i++;
+		}
+		ft_strdel(sstr + i);
+		free(sstr);
+	}
+}
diff --git a/libftasm/src/str/ft_strcat.c b/libftasm/src/str/ft_strcat.c
index b2947ea8..f376d850 100644
--- a/libftasm/src/str/ft_strcat.c
+++ b/libftasm/src/str/ft_strcat.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/08/07 10:56:53 by jhalford          #+#    #+#             */
-/*   Updated: 2016/08/20 23:16:44 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/10 12:18:00 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -19,7 +19,7 @@ char	*ft_strcat(char *s1, const char *s2)
 
 	size = ft_strlen(s1);
 	j = 0;
-	while (s2[j] != '\0')
+	while (s2 && s2[j])
 	{
 		s1[size + j] = s2[j];
 		j++;
diff --git a/libftasm/src/str/ft_strjoin.c b/libftasm/src/str/ft_strjoin.c
index 58a57d14..943ded51 100644
--- a/libftasm/src/str/ft_strjoin.c
+++ b/libftasm/src/str/ft_strjoin.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 14:58:18 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/03 14:58:18 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/10 10:14:09 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
diff --git a/libftasm/src/str/ft_strlen.c b/libftasm/src/str/ft_strlen.c
index 4075825e..536f2bcf 100644
--- a/libftasm/src/str/ft_strlen.c
+++ b/libftasm/src/str/ft_strlen.c
@@ -6,7 +6,7 @@
 /*   By: jhalford <marvin@42.fr>                    +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2016/11/03 14:58:22 by jhalford          #+#    #+#             */
-/*   Updated: 2016/11/03 14:58:23 by jhalford         ###   ########.fr       */
+/*   Updated: 2016/11/10 10:14:18 by jhalford         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */