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# **************************************************************************** #
# #
# ::: :::::::: #
# ft_strlen.s :+: :+: :+: #
# +:+ +:+ +:+ #
# By: cacharle <marvin@42.fr> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2019/11/22 03:04:20 by cacharle #+# #+# #
# Updated: 2019/11/22 21:18:30 by cacharle ### ########.fr #
# #
# **************************************************************************** #
.globl _ft_strlen
# int ft_strlen(char *);
_ft_strlen:
mov rbx, rdi # str argument
xor rax, rax
FT_STRLEN_LOOP:
cmp byte ptr [rbx + rax], 0 # compare rbx[rax] and '\0'
je FT_STRLEN_RET
inc rax
jmp FT_STRLEN_LOOP
FT_STRLEN_RET:
ret
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