From 0931febe3e178b4e484259c9cdc79ef452208ae7 Mon Sep 17 00:00:00 2001
From: Charles <sircharlesaze@gmail.com>
Date: Fri, 22 Nov 2019 00:11:46 +0100
Subject: ft_strlen.s (i can kinda compile this shit)

---
 ft_strlen.s | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

(limited to 'ft_strlen.s')

diff --git a/ft_strlen.s b/ft_strlen.s
index 32eaf0c..82c0e34 100644
--- a/ft_strlen.s
+++ b/ft_strlen.s
@@ -1,12 +1,12 @@
-ft_strlen:
-	pop bx
-	mov eax, 0h
-FT_STRLEN_LOOP:
-	mov ecx, [ebx]
-	cmp ecx, 0
-	je FT_STRLEN_RET
-	inc eax
-	inc ebx
-	jmp FT_STRLEN_LOOP
-FT_STRLEN_RET:
-	ret
+.globl	_ft_strlen
+
+ _ft_strlen:
+	mov rbx, rdi  # first argument in rbx
+	xor rax, rax  # rax = 0
+	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
-- 
cgit