def test_00ee_decrements_stack_size(call_location):
"""Return instruction decrements stack size"""
vm = VM()
vm.stack_call(call_location)
load_and_execute_instruction(
vm,
0x00EE, # return instruction
load_point=call_location)
assert vm.stack_size == 0
def test_00ee_returns_to_last_location_plus_two(call_location):
"""Return instruction returns to last location on the stack"""
vm = VM()
vm.stack_call(call_location)
load_and_execute_instruction(
vm,
0x00EE, # return instruction
load_point=call_location)
assert vm.program_counter == DEFAULT_EXECUTION_START + 2