diff --git a/src/simulator/machine.rs b/src/simulator/machine.rs
index 6f73b1c..69a9e43 100644
--- a/src/simulator/machine.rs
+++ b/src/simulator/machine.rs
@@ -221,7 +221,7 @@ impl Machine {
 		}
 	}
 
-	/// Execute the instructions table of a machine putted in param
+	/// Execute the instructions table of a machine put in param
 	/// 
 	/// ### Parameters
 	/// 
@@ -237,6 +237,19 @@ impl Machine {
 		}
 	}
 
+	/// Execute the instructions table of a machine put in param
+	/// **WITHOUT INTERPRETING SYSCALLS**
+	/// 
+	/// For debug purposes
+	pub fn _run_debug(&mut self, system: &mut System) {
+		loop {
+			match self.one_instruction(system) {
+				Ok(_) => (),
+				_ => break
+			}
+		}
+	}
+
 	/// Execute the current instruction
 	/// 
 	/// ### Parameters
@@ -694,10 +707,15 @@ impl Default for Machine {
 }
 
 #[cfg(test)]
+
 mod test {
     use std::fs;
 
     use crate::simulator::{machine::Machine, mem_cmp};
+	use crate::kernel::thread::Thread;
+	use crate::kernel::process::Process;
+	use std::rc::Rc;
+	use std::cell::RefCell;
 
 	macro_rules! get_full_path {
 		($prefix: expr, $test_name:expr) => {{
@@ -717,7 +735,7 @@ mod test {
 			let memory_after = mem_cmp::MemChecker::from(get_full_path!("memory", &end_file_name)).unwrap();
 			mem_cmp::MemChecker::fill_memory_from_mem_checker(&memory_before, &mut m);
 			let mut system = crate::kernel::system::System::default();
-			m.run(&mut system);
+			m._run_debug(&mut system);
 			let expected_trace = fs::read_to_string(get_full_path!("reg_trace", $a)).unwrap();
 			assert!(mem_cmp::MemChecker::compare_machine_memory(&memory_after, &m));
 			assert!(expected_trace.contains(m.registers_trace.as_str()));