length finally fucking works

CMakeLists.txt

@@ -20,4 +20,3 @@ add_link_options(-fno-pie -m64 -no-pie -pedantic-errors)
 add_executable(length length.asm)
 add_executable(yes yes.asm)
 add_executable(case case.asm)
-

length.asm

@@ -10,7 +10,8 @@ section .rodata
 	format db "%#x", 10, 0
 
 section .data
-	text db "rEEEeee!EEeeeEeEEeE!EEEEEeEEE$eeeEE)EEeEeEEeeeEeEEEEEeeeEeeEeeEeeeeeEeEeEeeE",0
+	text db "rEE",0
+	testasd dq 0
 section .text
 	global main
 
@@ -21,22 +22,20 @@ main:
 
 	mov r8, text
 	call length_func
-
-
+	mov [testasd], rax
 
 	mov rdi, text
 	cld
 	call puts	;this is the puts way of printing a string
 
 
-	mov   rsi, r8
+	mov   rsi, [testasd]
 	lea   rdi, [rel format]
 	xor   eax, eax		   ; AL=0  no FP args in XMM regs
 	call  printf
 
 
 
-
 _end:
 	add rsp, 8	;exit
 	ret

length_func.inc

@@ -1,9 +1,9 @@
 
 length_func:
 
+	mov r10, r8
 _loop67865432:
 
-
 	mov r9b, [r8]
 	cmp r9b, 0
 	jz _exitloop4323567
@@ -11,11 +11,7 @@ _loop67865432:
 
 	jmp _loop67865432
 _exitloop4323567:
-	dec r8		; idk how to do it properly do im doing this instead
-
-	dec r8
-	dec r8
-	dec r8
 
+	sub r8, r10
 	mov rax, r8
 	ret