diff --git a/src/kernel/exception.rs b/src/kernel/exception.rs
index 89f7cdb..d03668b 100644
--- a/src/kernel/exception.rs
+++ b/src/kernel/exception.rs
@@ -175,8 +175,8 @@ fn syscall(machine: &mut Machine, system: &mut System) -> Result<MachineOk, Mach
         SC_V => sc_v(machine, system),
         SC_SEM_CREATE => sc_sem_create(machine, system),
         SC_SEM_DESTROY => sc_sem_remove(machine, system),
-        SC_LOCK_CREATE => todo!(),
-        SC_LOCK_DESTROY => todo!(),
+        SC_LOCK_CREATE => sc_lock_create(machine, system),
+        SC_LOCK_DESTROY => sc_lock_destroy(machine, system),
         SC_LOCK_ACQUIRE => todo!(),
         SC_LOCK_RELEASE => todo!(),
         SC_COND_CREATE => todo!(),
@@ -197,6 +197,22 @@ fn syscall(machine: &mut Machine, system: &mut System) -> Result<MachineOk, Mach
     }
 }
 
+fn sc_lock_create(machine: &mut Machine, system: &mut System) -> Result<MachineOk, MachineError> {
+    let addr_name = machine.read_int_register(10) as usize;
+    let size = get_length_param(addr_name, &machine);
+    let _name = get_string_param(addr_name, size, machine);
+    let lock = Lock::new();
+    let id = system.get_thread_manager().get_obj_addrs().add_lock(lock);
+    machine.write_int_register(10, id as i64);
+    Ok(MachineOk::Ok)
+}
+
+fn sc_lock_destroy(machine: &mut Machine, system: &mut System) -> Result<MachineOk, MachineError> {
+    let id = machine.read_int_register(10) as i32;
+    system.get_thread_manager().get_obj_addrs().remove_lock(id);
+    Ok(MachineOk::Ok)
+}
+
 fn sc_p(machine: &mut Machine, system: &mut System) -> Result<MachineOk, MachineError> {
     let id_sema = machine.int_reg.get_reg(10);
     system.get_thread_manager().sem_p(id_sema as i32, machine)