diff --git a/src/simulator/mem_cmp.rs b/src/simulator/mem_cmp.rs
index 723eef7..abddae9 100644
--- a/src/simulator/mem_cmp.rs
+++ b/src/simulator/mem_cmp.rs
@@ -107,11 +107,11 @@ impl Mem_Checker{
 
             let current_line = line.unwrap();
 
-            if i == 0 {
+            if i == current_line.len()-2 {
                 //Lecture de PC
                 pc = string_hex_to_usize(&current_line);
             }
-            else if i == 1 {
+            else if i == current_line.len()-1 {
                 //Lecture SP
                 sp = string_hex_to_usize(&current_line);
             }