diff --git a/libftasm/.gitignore b/libftasm/.gitignore
new file mode 100644
index 00000000..4be147d0
--- /dev/null
+++ b/libftasm/.gitignore
@@ -0,0 +1,2 @@
+test
+libfts.a
diff --git a/libftasm/Makefile b/libftasm/Makefile
new file mode 100644
index 00000000..d932a4ba
--- /dev/null
+++ b/libftasm/Makefile
@@ -0,0 +1,110 @@
+#* ************************************************************************** *#
+#*                                                                            *#
+#*                                                        :::      ::::::::   *#
+#*   Makefile                                           :+:      :+:    :+:   *#
+#*                                                    +:+ +:+         +:+     *#
+#*   By: wescande <wescande@student.42.fr>          +#+  +:+       +#+        *#
+#*                                                +#+#+#+#+#+   +#+           *#
+#*   Created: 2016/08/29 21:32:58 by wescande          #+#    #+#             *#
+#*   Updated: 2016/12/24 02:14:21 by wescande         ###   ########.fr       *#
+#*                                                                            *#
+#* ************************************************************************** *#
+
+SHELL		:=	bash
+
+NAME		=	libfts.a
+NASM		=	nasm
+
+UNAME_S		=	$(shell uname -s)
+ifeq ($(UNAME_S),Linux)
+	FLAGS_ASM	=	-g\
+					-f elf64\
+					-D READ=0x0000000\
+					-DWRITE=0x0000001
+endif
+ifeq ($(UNAME_S),Darwin)
+	FLAGS_ASM	=	-g\
+					-f macho64\
+					-D READ=0x2000003\
+					-DWRITE=0x2000004
+endif
+
+
+LEN_NAME	=	`printf "%s" $(NAME) |wc -c`
+DELTA		=	$$(echo "$$(tput cols)-31-$(LEN_NAME)"|bc)
+
+SRC_DIR		=	srcs/
+INC_DIR		=	includes/
+OBJ_DIR		=	objs/
+
+SRC_BASE	= \
+ft_bzero.s\
+ft_cat.s\
+ft_isalnum.s\
+ft_isalpha.s\
+ft_isascii.s\
+ft_isdigit.s\
+ft_islower.s\
+ft_isprint.s\
+ft_isupper.s\
+ft_max.s\
+ft_memcpy.s\
+ft_memset.s\
+ft_min.s\
+ft_putchar.s\
+ft_puts.s\
+ft_strcat.s\
+ft_strdup.s\
+ft_strlen.s\
+ft_tolower.s\
+ft_toupper.s
+
+SRCS		=	$(addprefix $(SRC_DIR), $(SRC_BASE))
+OBJS		=	$(addprefix $(OBJ_DIR), $(SRC_BASE:.s=.o))
+NB			=	$(words $(SRC_BASE))
+INDEX		=	0
+
+all :
+	@$(MAKE) -j $(NAME)
+
+$(NAME) :		$(OBJ_DIR) $(OBJS)
+	@ar rcs $(NAME) $(OBJS)
+	@printf "\r\033[38;5;117m✓ MAKE $(NAME)\033[0m\033[K\n"
+
+$(OBJ_DIR) :
+	@mkdir -p $(OBJ_DIR)
+	@mkdir -p $(dir $(OBJS))
+
+$(OBJ_DIR)%.o :	$(SRC_DIR)%.s | $(OBJ_DIR)
+	@$(eval DONE=$(shell echo $$(($(INDEX)*20/$(NB)))))
+	@$(eval PERCENT=$(shell echo $$(($(INDEX)*100/$(NB)))))
+	@$(eval TO_DO=$(shell echo $$((20-$(INDEX)*20/$(NB) - 1))))
+	@$(eval COLOR=$(shell list=(160 196 202 208 215 221 226 227 190 154 118 82 46); index=$$(($(PERCENT) * $${#list[@]} / 100)); echo "$${list[$$index]}"))
+	@printf "\r\033[38;5;%dm⌛ [%s]: %2d%% `printf '█%.0s' {0..$(DONE)}`%*s❙%*.*s\033[0m\033[K" $(COLOR) $(NAME) $(PERCENT) $(TO_DO) "" $(DELTA) $(DELTA) "$(shell echo "$@" | sed 's/^.*\///')"
+	@$(NASM) $(FLAGS_ASM) $< -o $@
+	@$(eval INDEX=$(shell echo $$(($(INDEX)+1))))
+
+clean :
+	@if [ -e $(OBJ_DIR) ]; \
+	then \
+		rm -rf $(OBJ_DIR); \
+		printf "\r\033[38;5;202m✗ clean $(NAME).\033[0m\033[K\n"; \
+	fi;
+
+fclean :		clean
+	@if [ -e $(NAME) ]; \
+	then \
+		rm -rf $(NAME); \
+		printf "\r\033[38;5;196m✗ fclean $(NAME).\033[0m\033[K\n"; \
+	fi;
+
+re :			fclean all
+
+
+test: $(NAME) main.c
+	gcc -Wall -Wextra -Werror $? -o test
+	@printf "\r\033[38;5;117m✓ MAKE test\033[0m\033[K\n"
+
+.PHONY :		fclean clean re run-gdb
+
+-include $(OBJS:.o=.d)
diff --git a/libftasm/libft.h b/libftasm/libft.h
new file mode 100644
index 00000000..d4187f68
--- /dev/null
+++ b/libftasm/libft.h
@@ -0,0 +1,43 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+/*
+** PART_1
+*/
+void	ft_bzero(void *i, size_t t);
+char	*ft_strcat(char *c, char *d);
+int		ft_isalpha(int i);
+int		ft_isdigit(int i);
+int		ft_isalnum(int i);
+int		ft_isascii(int i);
+int		ft_isprint(int i);
+int		ft_toupper(int i);
+int		ft_tolower(int i);
+int		ft_puts(char *s);
+
+/*
+** PART_2
+*/
+int		ft_strlen(char *s);
+void	*ft_memset(void *b, int c, size_t len);
+void	*ft_memcpy(void *dest, const void *src, size_t n);
+char	*ft_strdup(const char *s1);
+
+/*
+** PART_3
+*/
+void	ft_cat(int fd);
+
+/*
+** PART_BONUS
+*/
+int		ft_isupper(int i);
+int		ft_islower(int i);
+int		ft_putchar(int i);
+int		ft_min(int a, int b);
+int		ft_max(int a, int b);
diff --git a/libftasm/main.c b/libftasm/main.c
new file mode 100644
index 00000000..4bc8b771
--- /dev/null
+++ b/libftasm/main.c
@@ -0,0 +1,669 @@
+#include "libft.h"
+#include <ctype.h>
+#include <math.h>
+
+int ft_putstr(const char *str)
+{
+	return (write(1, str, strlen(str)));
+}
+
+int ft_putnstr(const char *str, size_t n)
+{
+	return (write(1, str, n));
+}
+
+int test_bzero()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char str[] = "Bonjour je suis une chaine de char!\n";
+	char str_cmp[] = "Bonjour je suis une chaine de char!\n";
+	int len = strlen(str);
+	int result = 0;
+	int i;
+
+	ft_bzero(NULL, 250);
+
+	bzero(str_cmp, 1);
+	ft_bzero(str, 1);
+	i = -1;
+	++result;
+	while (++i < len)
+	{
+		if (str[i] != str_cmp[i])
+		{
+			printf("Failed[%d]: %c vs %c at pos: %d\n", result, str[i], str_cmp[i], i);
+			ft_putnstr(str, len);
+			ft_putnstr(str_cmp, len);
+			return(1);
+		}
+	}
+	bzero(str_cmp + 5, 4);
+	ft_bzero(str + 5, 4);
+	++result;
+	i = -1;
+	while (++i < len)
+	{
+		if (str[i] != str_cmp[i])
+		{
+			printf("Failed[%d]: %c vs %c at pos: %d\n", result, str[i], str_cmp[i], i);
+			ft_putnstr(str, len);
+			ft_putnstr(str_cmp, len);
+			return(1);
+		}
+	}
+	bzero(str_cmp + 2, len - 3);
+	ft_bzero(str + 2, len - 3);
+	++result;
+	i = -1;
+	while (++i < len)
+	{
+		if (str[i] != str_cmp[i])
+		{
+			printf("Failed[%d]: %c vs %c at pos: %d\n", result, str[i], str_cmp[i], i);
+			ft_putnstr(str, len);
+			ft_putnstr(str_cmp, len);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_strcat()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char str[20] = "first_";
+	char str2[] = "second\n";
+	char str_cmp[20] = "first_";
+	char str_cmp2[] = "second\n";
+	int len = 20;
+	int i;
+
+	strcat(str_cmp, str_cmp2);
+	ft_strcat(str, str2);
+	i = -1;
+	while (++i < len)
+	{
+		if (str[i] != str_cmp[i])
+		{
+			printf("Failed: %c vs %c at pos: %d\n", str[i], str_cmp[i], i);
+			ft_putnstr(str, len);
+			ft_putnstr(str_cmp, len);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_isalpha()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	int ret, ret_cmp;
+	while (++a < 127)
+	{
+		if ((ret = ft_isalpha(a) == 0) != (ret_cmp = isalpha(a) == 0))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return (1);
+		}
+	}
+	return (0);
+}
+
+int test_isdigit()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	int ret, ret_cmp;
+	while (++a < 127)
+	{
+		if ((ret = ft_isdigit(a) == 0) != (ret_cmp = isdigit(a) == 0))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_isascii()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	int ret, ret_cmp;
+	while (++a < 127)
+	{
+		if ((ret = ft_isascii(a) == 0) != (ret_cmp = isascii(a) == 0))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_isalnum()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	int ret, ret_cmp;
+	while (++a < 127)
+	{
+		if ((ret = ft_isalnum(a) == 0) != (ret_cmp = isalnum(a) == 0))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_isprint()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	int ret, ret_cmp;
+	while (++a < 127)
+	{
+		if ((ret = ft_isprint(a) == 0) != (ret_cmp = isprint(a) == 0))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_toupper()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	while (++a < 127)
+	{
+		if (ft_toupper(a) != toupper(a))
+		{
+			printf("FAILED: %c [%d]\n", a, a);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_tolower()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	while (++a < 127)
+	{
+		if (ft_tolower(a) != tolower(a))
+		{
+			printf("FAILED: %c [%d]\n", a, a);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_puts()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char str[] = "It's a char line you have to print. Not this one";
+	str[35] = 0;
+	int ret, ret_cmp;
+	printf("Original:|"); ret = puts("");printf("|\n");
+	printf("Notre   :|"); ret_cmp = ft_puts("");printf("|\n");
+#ifdef __APPLE__
+	if (ret != ret_cmp)
+	{
+		printf("FAILED: %d should be %d\n", ret_cmp, ret);
+		return (1);
+	}
+#endif
+#ifdef __APPLE__
+// puts(NULL) segfaults on linux because the compiler lets you shoot yourself
+	printf("Original:|"); ret = puts(NULL);printf("|\n");
+	printf("Notre   :|"); ret_cmp = ft_puts(NULL);printf("|\n");
+	if (ret != ret_cmp)
+	{
+		printf("FAILED: %d should be %d\n", ret_cmp, ret);
+		return (1);
+	}
+#endif
+	printf("Notre   :|"); ret = ft_puts(str);printf("|\n");
+	printf("Original:|"); ret_cmp = puts(str);printf("|\n");
+#ifdef __APPLE__
+	if (ret != ret_cmp)
+	{
+		printf("FAILED: %d should be %d\n", ret_cmp, ret);
+		return (1);
+	}
+#endif
+	return (0);
+}
+
+int test_strlen()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char str[] = "zagaga";
+	int ret, ret_cmp;
+	ret = ft_strlen(str);
+	ret_cmp = strlen(str);
+	if (ret != ret_cmp)
+	{
+		printf("FAILED: %d vs %d (on %s)", ret, ret_cmp, str);
+		return (1);
+	}
+	ret = ft_strlen(NULL);
+	ret_cmp = 0;
+	if (ret != ret_cmp)
+	{
+		printf("FAILED: %d vs %d (on nullptr)", ret, ret_cmp);
+		return (1);
+	}
+	return (0);
+}
+
+int test_memset()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	char str[] = "Bonjour je suis une chaine de char!\n";
+	char str_cmp[] = "Bonjour je suis une chaine de char!\n";
+	char *ret, *ret_cmp;
+	int len = strlen(str);
+	int result = 0;
+	int i;
+
+	while (++a < 127)
+	{
+		++result;
+		if (ft_memset(NULL, a, 250) != NULL)
+		{
+			printf("Failed[%d]: memset on NULL\n", result);
+			return (1);
+		}
+		ret_cmp = memset(str_cmp, a, 1);
+		ret = ft_memset(str, a, 1);
+		i = -1;
+		++result;
+		while (++i < len)
+		{
+			if (ret[i] != ret_cmp[i])
+			{
+				ft_putnstr(ret, len);
+				ft_putnstr(ret_cmp, len);
+				printf("Failed[%d]: %c vs %c at pos: %d/%d\n", result, ret[i], ret_cmp[i], i, len);
+				return(1);
+			}
+		}
+		ret_cmp = memset(str_cmp + 5, a, 4);
+		ret = ft_memset(str + 5, a, 4);
+		++result;
+		i = -1;
+		while (++i < (len - 5))
+		{
+			if (ret[i] != ret_cmp[i])
+			{
+				ft_putnstr(ret, len);
+				ft_putnstr(ret_cmp, len);
+				printf("Failed[%d]: %c vs %c at pos: %d/%d\n", result, ret[i], ret_cmp[i], i, len);
+				return(1);
+			}
+		}
+		ret_cmp = memset(str_cmp + 2, a, len - 3);
+		ret = ft_memset(str + 2, a, len - 3);
+		++result;
+		i = -1;
+		while (++i < (len - 2))
+		{
+			if (ret[i] != ret_cmp[i])
+			{
+				ft_putnstr(ret, len);
+				ft_putnstr(ret_cmp, len);
+				printf("Failed[%d]: %c vs %c at pos: %d/%d\n", result, ret[i], ret_cmp[i], i, len);
+				return(1);
+			}
+		}
+	}
+	return (0);
+}
+
+int test_memcpy()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char str[] = "Bonjour je suis une chaine de char!\n";
+	char str_cmp[] = "Bonjour je suis une chaine de char!\n";
+	char ret[100], ret_cmp[100];
+	char *me, *cmp;
+	int len = strlen(str);
+	int result = 0;
+	int i;
+
+	++result;
+	if (ft_memcpy(NULL, str, 250) != NULL)
+	{
+		printf("Failed[%d]: memcpy on dst=NULL\n", result);
+		return (1);
+	}
+	++result;
+	if (ft_memcpy(ret, NULL, 250) != ret)
+	{
+		printf("Failed[%d]: memcpy on src=NULL\n", result);
+		return (1);
+	}
+	cmp = memcpy(ret_cmp, str_cmp, len);
+	me = ft_memcpy(ret, str, len);
+	i = -1;
+	++result;
+	while (++i < len)
+	{
+		if (me[i] != cmp[i])
+		{
+			ft_putnstr(ret, len);
+			ft_putnstr(ret_cmp, len);
+			printf("Failed[%d]: %c vs %c at pos: %d/%d\n", result, me[i], cmp[i], i, len);
+			return(1);
+		}
+	}
+	memcpy(ret_cmp + len, str_cmp, len);
+	ft_memcpy(ret + len, str, len);
+	i = -1;
+	++result;
+	while (++i < 2 * len)
+	{
+		if (me[i] != cmp[i])
+		{
+			ft_putnstr(ret, 2 * len);
+			ft_putnstr(ret_cmp, 2 * len);
+			printf("Failed[%d]: %c vs %c at pos: %d/%d\n", result, me[i], cmp[i], i, 2 * len);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_strdup()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char *str;
+	char *str_cmp;
+	int len, len_cmp;
+	int i;
+	if ((str = ft_strdup(NULL)) != NULL)
+	{
+		printf("FAILED: not support NULL\n");
+		return (1);
+	}
+	str = ft_strdup("Coucou");
+	str_cmp = strdup("Coucou");
+	len = strlen(str);
+	len_cmp = strlen(str_cmp);
+	if (len != len_cmp)
+	{
+		printf("FAILED: len is %d vs %d\n", len, len_cmp);
+		return (1);
+	}
+	i = -1;
+	while (++i < len)
+	{
+		if (str[i] != str_cmp[i])
+		{
+			ft_putnstr(str, len);
+			ft_putnstr(str_cmp, len);
+			printf("FAILED: %c vs %c\n", str[i], str_cmp[i]);
+			return (1);
+		}
+	}
+	free(str);
+	free(str_cmp);
+
+	return (0);
+}
+
+int test_cat(char **av)
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+
+	(void)av;
+	ft_cat(0);
+	ft_cat(open(__FILE__, O_RDONLY));
+	ft_cat(open(av[0], O_RDONLY));
+	ft_cat(-42);
+	return (0);
+}
+
+int test_isupper()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	int ret, ret_cmp;
+	while (++a < 127)
+	{
+		if ((ret = ft_isupper(a) == 0) != (ret_cmp = isupper(a) == 0))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_islower()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	char a = -1;
+	int ret, ret_cmp;
+	while (++a < 127)
+	{
+		if ((ret = ft_islower(a) == 0) != (ret_cmp = islower(a) == 0))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return(1);
+		}
+	}
+	return (0);
+}
+
+int test_putchar()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	int a = -500;
+	int ret, ret_cmp;
+	while (++a < 500)
+	{
+		if ((ret = ft_putchar(a)) != (ret_cmp = putchar(a)))
+		{
+			printf("FAILED: %c [%d] => %d vs %d\n", a, a, ret, ret_cmp);
+			return(1);
+		}
+	}
+	ft_putstr(":\n");
+	return (0);
+}
+
+int test_max()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	unsigned int a, b, ret, ret_cmp;
+	int ans = 0;
+	a = 5;
+	b = 6;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = 6;
+	b = 5;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -10;
+	b = -12;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -12;
+	b = -10;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -10;
+	b = 12;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -12;
+	b = 10;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = 0;
+	b = 10;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -12;
+	b = 0;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -2147483648;
+	b = 2147483647;
+	if ((ret = ft_max(a,b)) != (ret_cmp = fmax(a,b)))
+	{
+			dprintf(2, "FAILED max(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+
+	return (ans);
+}
+
+int test_min()
+{
+	ft_putstr(__func__); ft_putstr(":\n");
+	unsigned int a, b, ret, ret_cmp;
+	int ans = 0;
+	a = 5;
+	b = 6;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = 6;
+	b = 5;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -10;
+	b = -12;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -12;
+	b = -10;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -10;
+	b = 12;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -12;
+	b = 10;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = 0;
+	b = 10;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -12;
+	b = 0;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+	a = -2147483648;
+	b = 2147483647;
+	if ((ret = ft_min(a,b)) != (ret_cmp = fmin(a,b)))
+	{
+			dprintf(2, "FAILED min(%d, %d) => %d vs %d\n",a,b,ret,ret_cmp);
+			++ans;
+		}
+
+	return (ans);
+}
+
+
+int main(int argc, char **argv)
+{
+	(void)argc;
+	setbuf(stdout, NULL);
+	ft_putstr("\nPART 1:\n_______\n");
+	if (
+			test_bzero() ||
+			test_strcat() ||
+			test_isalpha() ||
+			test_isdigit() ||
+			test_isalnum() ||
+			test_isascii() ||
+			test_isprint() ||
+			test_toupper() ||
+			test_tolower() ||
+			test_puts()
+	   )
+		return (1);
+	ft_putstr("PART 2:\n_______\n");
+	if (
+			test_strlen() ||
+			test_memset() ||
+			test_memcpy() ||
+			test_strdup()
+	   )
+		return (1);
+	ft_putstr("\nPART 3:\n_______\n");
+	if (test_cat(argv))
+		return (1);
+	ft_putstr("\nPART BONUS:\n_______\n");
+	if (
+			test_isupper() ||
+			test_islower() ||
+			test_putchar() ||
+			test_min() ||
+			test_max()
+	   )
+		return (1);
+	puts("\033c\n\033[38;5;117mALL PASSED\n___________\n\033[0m");
+	return (0);
+}
diff --git a/libftasm/srcs/ft_bzero.s b/libftasm/srcs/ft_bzero.s
new file mode 100644
index 00000000..1351d09b
--- /dev/null
+++ b/libftasm/srcs/ft_bzero.s
@@ -0,0 +1,19 @@
+global _ft_bzero
+global ft_bzero
+section .text
+
+_ft_bzero:
+ft_bzero:
+	cmp rdi, 0
+	je end
+	cmp rsi, 0
+	je end
+start_loop:
+	mov BYTE [rdi], 0
+	inc rdi
+	dec rsi
+	jnz start_loop
+; loop start_loop 
+
+end:
+	ret
diff --git a/libftasm/srcs/ft_cat.s b/libftasm/srcs/ft_cat.s
new file mode 100644
index 00000000..c145c0d2
--- /dev/null
+++ b/libftasm/srcs/ft_cat.s
@@ -0,0 +1,36 @@
+global _ft_cat
+global ft_cat
+
+%define STDOUT			1
+%define BUFF_SIZE		1024
+
+section .bss
+	buf: resb BUFF_SIZE
+
+section .text
+; void ft_cat(int fd)
+_ft_cat:
+ft_cat:
+	mov		r8, rdi
+	cmp		rdi, 0
+	jl		end
+	lea		rsi, [rel buf]
+	mov		rdx, BUFF_SIZE
+	mov		rax, READ			; int read(int fd, void *buf, size_t count)
+	syscall
+	jc		end
+	cmp		rax, 0
+	jle		end
+
+    mov     rdi, STDOUT
+    mov     rdx, rax
+    mov     rax, WRITE			; int write(int fd, const void *buf, size_t count)
+    syscall
+	jc		end
+	cmp		rax, 0
+	jl		end
+
+	mov		rdi, r8
+    jmp		ft_cat
+end:		
+	ret
diff --git a/libftasm/srcs/ft_isalnum.s b/libftasm/srcs/ft_isalnum.s
new file mode 100644
index 00000000..0476505a
--- /dev/null
+++ b/libftasm/srcs/ft_isalnum.s
@@ -0,0 +1,14 @@
+global _ft_isalnum
+global ft_isalnum
+
+extern ft_isalpha
+extern ft_isdigit
+
+_ft_isalnum:
+ft_isalnum:
+	mov rax, 0
+	call ft_isalpha
+	cmp rax, 0
+	jne end
+	call ft_isdigit
+end: ret
diff --git a/libftasm/srcs/ft_isalpha.s b/libftasm/srcs/ft_isalpha.s
new file mode 100644
index 00000000..bd091f00
--- /dev/null
+++ b/libftasm/srcs/ft_isalpha.s
@@ -0,0 +1,15 @@
+global _ft_isalpha
+global ft_isalpha
+
+extern ft_islower
+extern ft_isupper
+
+_ft_isalpha:
+ft_isalpha:
+	mov rax, 0
+	call ft_isupper
+	cmp rax, 0
+	jne end
+	call ft_islower
+
+end: ret
diff --git a/libftasm/srcs/ft_isascii.s b/libftasm/srcs/ft_isascii.s
new file mode 100644
index 00000000..75901217
--- /dev/null
+++ b/libftasm/srcs/ft_isascii.s
@@ -0,0 +1,11 @@
+global _ft_isascii
+global ft_isascii
+
+_ft_isascii:
+ft_isascii:
+	mov rax, 0
+	and rdi, 128
+	jne end
+	mov rax, 1
+end:
+	ret
diff --git a/libftasm/srcs/ft_isdigit.s b/libftasm/srcs/ft_isdigit.s
new file mode 100644
index 00000000..9108750e
--- /dev/null
+++ b/libftasm/srcs/ft_isdigit.s
@@ -0,0 +1,13 @@
+global _ft_isdigit
+global ft_isdigit
+
+_ft_isdigit:
+ft_isdigit:
+	mov rax, 0
+	cmp rdi, '0'
+	jl end
+	cmp rdi, '9'
+	jg end
+	mov rax, rdi
+end:
+	ret
diff --git a/libftasm/srcs/ft_islower.s b/libftasm/srcs/ft_islower.s
new file mode 100644
index 00000000..231e2e07
--- /dev/null
+++ b/libftasm/srcs/ft_islower.s
@@ -0,0 +1,12 @@
+global _ft_islower
+global ft_islower
+
+_ft_islower:
+ft_islower:
+	mov rax, 0
+	cmp rdi, 'a'
+	jl end
+	cmp rdi, 'z'
+	jg end
+	mov rax, rdi
+end: ret
diff --git a/libftasm/srcs/ft_isprint.s b/libftasm/srcs/ft_isprint.s
new file mode 100644
index 00000000..7655346d
--- /dev/null
+++ b/libftasm/srcs/ft_isprint.s
@@ -0,0 +1,13 @@
+global _ft_isprint
+global ft_isprint
+
+_ft_isprint:
+ft_isprint:
+	mov rax, 0
+	cmp rdi, ' '
+	jl end
+	cmp rdi, '~'
+	jg end
+	mov rax, rdi
+end:
+	ret
diff --git a/libftasm/srcs/ft_isupper.s b/libftasm/srcs/ft_isupper.s
new file mode 100644
index 00000000..74dc3401
--- /dev/null
+++ b/libftasm/srcs/ft_isupper.s
@@ -0,0 +1,12 @@
+global _ft_isupper
+global ft_isupper
+
+_ft_isupper:
+ft_isupper:
+	mov rax, 0
+	cmp rdi, 'A'
+	jl end
+	cmp rdi, 'Z'
+	jg end
+	mov rax, rdi
+end: ret
diff --git a/libftasm/srcs/ft_max.s b/libftasm/srcs/ft_max.s
new file mode 100644
index 00000000..83f97bce
--- /dev/null
+++ b/libftasm/srcs/ft_max.s
@@ -0,0 +1,13 @@
+global _ft_max
+global ft_max
+
+section .text
+; int ft_max(int a, int b)
+_ft_max:
+ft_max:
+	mov rax, rdi
+	cmp rdi, rsi
+	jge end
+	mov rax, rsi
+end:
+	ret
diff --git a/libftasm/srcs/ft_memcpy.s b/libftasm/srcs/ft_memcpy.s
new file mode 100644
index 00000000..4af29ac5
--- /dev/null
+++ b/libftasm/srcs/ft_memcpy.s
@@ -0,0 +1,19 @@
+global		_ft_memcpy
+global		ft_memcpy
+
+; void *ft_memcpy(void *dst, const void *src, size_t n)
+_ft_memcpy:
+ft_memcpy:
+	push	rdi
+	cmp		rdi, 0
+	je		end
+	cmp		rsi, 0
+	je		end
+	mov		rcx, rdx
+	cld
+	rep		movsb
+
+end:
+	pop		rdi
+	mov		rax, rdi
+	ret
diff --git a/libftasm/srcs/ft_memset.s b/libftasm/srcs/ft_memset.s
new file mode 100644
index 00000000..d5f484f2
--- /dev/null
+++ b/libftasm/srcs/ft_memset.s
@@ -0,0 +1,17 @@
+global _ft_memset
+global ft_memset
+
+_ft_memset:			; void *ft_memset(void *s, int c, size_t n)
+ft_memset:
+	push	rdi
+	cmp		rdi, 0
+	je		end
+	mov		rcx, rdx
+	mov		al, sil
+	cld
+	rep		stosb
+
+end:
+	pop		rdi
+	mov		rax, rdi
+	ret
diff --git a/libftasm/srcs/ft_min.s b/libftasm/srcs/ft_min.s
new file mode 100644
index 00000000..016eb665
--- /dev/null
+++ b/libftasm/srcs/ft_min.s
@@ -0,0 +1,13 @@
+global _ft_min
+global ft_min
+
+section .text
+; int ft_min(int a, int b)
+_ft_min:
+ft_min:
+	mov rax, rdi
+	cmp rdi, rsi
+	jl end
+	mov rax, rsi
+end:
+	ret
diff --git a/libftasm/srcs/ft_putchar.s b/libftasm/srcs/ft_putchar.s
new file mode 100644
index 00000000..e29d6655
--- /dev/null
+++ b/libftasm/srcs/ft_putchar.s
@@ -0,0 +1,37 @@
+%define STDOUT			1
+
+global _ft_putchar
+global ft_putchar
+
+section .data
+	string: db "A"
+
+section .text
+
+; int ft_putchar(int c)
+_ft_putchar:
+ft_putchar:
+	; save c value
+	push	rdi
+
+	; int write(int fd, char *str, size_t len)
+	lea		rsi, [rel string]	; char *str
+	mov		[rsi], dil
+	mov		rdx, 1				; size_t len
+	mov		rdi, STDOUT			; int fd
+	mov		rax, WRITE
+	syscall
+
+	cmp		rax, 0
+	jl		err
+
+	; success case then return c
+	pop		rax
+	movzx	rax, al				; cast to char
+	ret
+
+err:
+	; error case then return -1
+	pop		rax
+	mov		rax, -1
+	ret
diff --git a/libftasm/srcs/ft_puts.s b/libftasm/srcs/ft_puts.s
new file mode 100644
index 00000000..78260fe5
--- /dev/null
+++ b/libftasm/srcs/ft_puts.s
@@ -0,0 +1,42 @@
+global _ft_puts
+global ft_puts
+
+extern _ft_strlen
+extern _ft_putchar
+
+%define STDOUT			1
+
+section .data
+	string: db "(null)"
+	.len: equ $ - string
+
+section .text
+_ft_puts:						; int puts(const char *s)
+ft_puts:
+	push	rdi					; because strlen will clobber rdi
+	call	_ft_strlen
+	pop		rdi
+    cmp     rax, 0
+    je      print_nl			; if empty string skip printing
+
+print_string:
+	; int write(int fd, const char *str, size_t size)
+	mov		rsi, rdi			; char *str
+    mov     rdi, STDOUT			; int fd
+    mov     rdx, rax            ; size_t strlen
+    mov     rax, WRITE			; WRITE
+    syscall
+	cmp		rax, 0
+	jl		finish
+
+print_nl:
+	mov		rdi, 0xa
+	call	_ft_putchar
+	cmp		rax, 0
+	ret
+	jl		finish
+
+success:
+	mov		rax, 0xa			; success returns '\n'
+finish:
+	ret
diff --git a/libftasm/srcs/ft_strcat.s b/libftasm/srcs/ft_strcat.s
new file mode 100644
index 00000000..603d49d0
--- /dev/null
+++ b/libftasm/srcs/ft_strcat.s
@@ -0,0 +1,21 @@
+global _ft_strcat
+global ft_strcat
+
+_ft_strcat:
+ft_strcat:
+	mov rax, rdi
+rloop:
+	cmp byte [rdi], 0
+	je wloop
+	inc rdi
+	jmp rloop
+
+wloop:
+	mov cl, [rsi]
+	mov [rdi], cl
+	cmp byte [rdi], 0
+	je end
+	inc rdi
+	inc rsi
+	jmp wloop
+end: ret
diff --git a/libftasm/srcs/ft_strdup.s b/libftasm/srcs/ft_strdup.s
new file mode 100644
index 00000000..de78e1fa
--- /dev/null
+++ b/libftasm/srcs/ft_strdup.s
@@ -0,0 +1,35 @@
+global		_ft_strdup
+global		ft_strdup
+
+extern		_malloc
+extern		malloc
+extern		_ft_strlen
+extern		_ft_memcpy
+
+; void *ft_strdup(const char *d)
+_ft_strdup:
+ft_strdup:
+	mov		rax, 0
+	cmp		rdi, 0
+	je		end
+
+	push	rdi
+	call	_ft_strlen
+	inc		rax
+	push	rax
+	mov		rdi, rax
+
+	sub		rsp, 8		; align stack to 16 bytes, x86_64 or mach don't know
+	call	_malloc
+	add		rsp, 8
+
+	pop		rcx
+	pop		rsi
+	cmp		rax, 0
+	je		end
+
+	mov		rdi, rax
+	cld					; clear the directon flag
+	rep		movsb
+end:
+	ret
diff --git a/libftasm/srcs/ft_strlen.s b/libftasm/srcs/ft_strlen.s
new file mode 100644
index 00000000..0d640ca2
--- /dev/null
+++ b/libftasm/srcs/ft_strlen.s
@@ -0,0 +1,18 @@
+global _ft_strlen
+global ft_strlen
+
+_ft_strlen:
+ft_strlen:
+	mov		rax, 0
+	cmp		rdi, 0
+	je		end
+
+	mov		rcx, -1
+	cld
+	repnz	scasb
+
+	not		rcx
+	lea		rax, [rcx - 1]
+
+end:
+	ret
diff --git a/libftasm/srcs/ft_tolower.s b/libftasm/srcs/ft_tolower.s
new file mode 100644
index 00000000..d2f66dc2
--- /dev/null
+++ b/libftasm/srcs/ft_tolower.s
@@ -0,0 +1,13 @@
+global _ft_tolower
+global ft_tolower
+
+_ft_tolower:
+ft_tolower:
+	mov		rax, rdi
+	cmp		rdi, 'A'
+	jl		end
+	cmp		rdi, 'Z'
+	jg		end
+	add		rax, 32
+end:
+	ret
diff --git a/libftasm/srcs/ft_toupper.s b/libftasm/srcs/ft_toupper.s
new file mode 100644
index 00000000..8079cde1
--- /dev/null
+++ b/libftasm/srcs/ft_toupper.s
@@ -0,0 +1,13 @@
+global _ft_toupper
+global ft_toupper
+
+_ft_toupper:
+ft_toupper:
+	mov rax, rdi
+	cmp rdi, 'a'
+	jl end
+	cmp rdi, 'z'
+	jg end
+	sub rax, 32
+end:
+	ret