section .text
	global ft_strcmp

ft_strcmp:
	xor rax, rax

	test rdi, rdi ; test if args are false
	jz .err
	test rsi, rsi
	jz .err
.loop_start:
	mov al, [rdi]
	cmp al, [rsi]
	jne .compare 

	test al, al ; test if rdi is \0
	jz .compare

	mov al, [rsi] ; test if rsi is \0
	test al, al
	jz .compare 

	lea rsi, [rsi + 1]
	lea rdi, [rdi + 1]
	jmp .loop_start


.compare:
	mov al, [rdi]
	cmp al, [rsi]
	jl .lower
	jg .greater
	mov eax, 0
	jmp .end

.lower:
	mov eax, -1
	jmp .end

.greater:
	mov eax, 1
	jmp .end

.err:
	mov eax, 0
.end:
	ret