GameMonkeyScript/gmsrc/doc/tutorial/2-continuing/scripts/threads_04.gm

global thread_func = function( a_name, a_count )
{
 print( "["+a_name+"] Starting..." );
 for (i = 0; i < a_count; i = i + 1)
 {
  print( "["+a_name+"] iteration: " + i );
  yield();
 };
 print( "["+a_name+"] Finishing..." );
};

print( "[0] Ready to execute..." );
thread( thread_func, 1, 100 );
thread( thread_func, 2, 100 );
sleep(1);
print( "[0] Thread created..." );