extern puts

%include "../inc/length_func.inc"

section .data
	text db "42",0
section .text
	global main

main:
	sub   rsp, 8


	mov r8, text
	call length_func
	mov r9, rax
	mov r11, r9

	mov r8, text
_loop:
	mov r10b, [r8] 
	cmp r10b, 0
	jz _exitloop		;if its zero we have reached the end of the string


	mov r10b, [r8]
	sub r10b, 48	; change "0" into 0
	mov [r8], r10b


	add r8, 1
	jmp _loop


	xor rcx, rcx
	add rcx, 1
_exitloop:
	cmp r9, r8
	je _addvalues

	

	mov r10b [r9]
	mul r10b, rcx
	mov [r9], r10b
	
	sub r9, 1
	mul rcx, 10

	jmp _exitloop

	add r9, 1
_addvalues:
    	cmp r9, r11
    	je _end


	mov r10b, [r8]
    	mov r11b, [r9]
	add r11b, r10b
	mov [r9], r11b

	

	add r8, 1
	add r9, 1

	jmp _addvalues
	;this returns the r8 pointer



	;mov rdi, text
	;cld
	;call puts	;this is the put s way of printing a string

_end:
	add rsp, 8
	ret
	
;	mov rax, 60		; exit
;	mov edi, 1 		; error 1 dont need the exit anymore beacue libc or somthing
;	syscall