code: def assign_variable_names(self):
          
  
          for var in self._variables:
              if isinstance(var, SimStackVariable):
                  if var.name is not None:
                      continue
                  if var.ident.startswith('iarg'):
                      var.name = 'arg_%x' % var.offset
                  else:
                      var.name = 's_%x' % (-var.offset)
                      # var.name = var.ident
              elif isinstance(var, SimRegisterVariable):
                  if var.name is not None:
                      continue
                  var.name = var.ident
docs: Assign default names to all variables.
  
          :return: None