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ft_memcpy.s
31 lines (27 loc) · 1.05 KB
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ft_memcpy.s
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; **************************************************************************** ;
; ;
; ::: :::::::: ;
; ft_memset.s :+: :+: :+: ;
; +:+ +:+ +:+ ;
; By: mleclair <mleclair@student.42.fr> +#+ +:+ +#+ ;
; +#+#+#+#+#+ +#+ ;
; Created: 2018/06/19 11:46:13 by mleclair #+# #+# ;
; Updated: 2018/06/19 11:46:13 by mleclair ### ########.fr ;
; ;
; **************************************************************************** ;
global _ft_memcpy
section .text
_ft_memcpy:
cmp rdi, 0
je error
cmp rsi, 0
je error
mov r10, rdi
mov rcx, rdx
cld
rep movsb
mov rax, r10
ret
error:
mov rax, rdi
ret