def test():
state = State([], [])
state.set_register("$t1", 1)
state.set_register("$t2", 2)
add = ADD("$t0", "$t1", "$t2")
add.execute(state)
print state.register("$t0")
def setUp(self):
self.state = State([], [])
self.branch_state = State(["x", "y", "z", "BLAH", "LOOP"], [])
self.t0 = 0
self.t1 = 434
self.t2 = 0
self.state.set_register("$t0", self.t0)
self.state.set_register("$t1", self.t1)
self.state.set_register("$t2", self.t2)
self.branch_state.set_register("$t0", self.t0)
self.branch_state.set_register("$t1", self.t1)
self.branch_state.set_register("$t2", self.t2)
def setUp(self):
self.state = State([], [])
self.t0 = 0
self.t1 = 10
self.t2 = 88
self.t3 = max_int
self.t4 = 22
self.state.set_register("$t0", self.t0)
self.state.set_register("$t1", self.t1)
self.state.set_register("$t2", self.t2)
self.state.set_register("$t3", self.t3)
self.state.set_register("$t4", self.t4)
def setUp(self):
self.state = State(["a", "b", "c", "x", "y", "z"], [])
self.state.memory.extend(range(0, 100))
class TestGeneralOperations(unittest.TestCase):
def setUp(self):
self.state = State(["a", "b", "c", "x", "y", "z"], [])
self.state.memory.extend(range(0, 100))
def testJUMP(self):
op = JUMP("x")
op.execute(self.state)
result = self.state.program_counter()
self.assertEqual(result, 3)
def testJAL(self):
prior_val = self.state.program_counter()
op = JAL("c")
op.execute(self.state)
program_counter = self.state.program_counter()
return_register = self.state.register("$ra")
self.assertEqual(program_counter, 2)
self.assertEqual(return_register, prior_val)
def testJR(self):
self.state.set_register("$ra", 44)
op = JR("$ra")
op.execute(self.state)
self.assertEqual(self.state.program_counter(), 44)
def testMFHI(self):
self.state.set_register("$hi", 22)
op = MFHI("$t0")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 22)
def testMFLO(self):
self.state.set_register("$lo", 88)
op = MFLO("$t0")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 88)
def testLW(self):
op = LW("$t0", (1, "$zero"))
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 1)
def testSW(self):
self.state.set_register("$t0", 22)
op = SW("$t0", (2, "$zero"))
op.execute(self.state)
result = self.state.memory[2]
self.assertEqual(result, 22)
class TestMathOperations(unittest.TestCase):
def setUp(self):
self.state = State([], [])
self.t0 = 0
self.t1 = 10
self.t2 = 88
self.t3 = max_int
self.t4 = 22
self.state.set_register("$t0", self.t0)
self.state.set_register("$t1", self.t1)
self.state.set_register("$t2", self.t2)
self.state.set_register("$t3", self.t3)
self.state.set_register("$t4", self.t4)
def testADD(self):
op = ADD("$t0", "$t1", "$t2")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, self.t1 + self.t2)
def testSUB(self):
op = SUB("$t0", "$t1", "$t2")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, self.t1 - self.t2)
def testADDU(self):
op = ADDU("$t0", "$t3", "$t4")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, -2147483627)
def testADDI(self):
op = ADDI("$t0", "$t1", 22)
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, self.t1 + 22)
def testADDIU(self):
op = ADDIU("$t0", "$t3", 22)
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, -2147483627)
def testSUBU(self):
op = SUBU("$t0", "$t4", "$t3")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, -2147483625)
def testDIV(self):
op = DIV("$t1", "$t2")
op.execute(self.state)
hi = self.state.register("$hi")
lo = self.state.register("$lo")
self.assertEqual(hi, self.t1 % self.t2)
self.assertEqual(lo, self.t1 / self.t2)
def testDIVU(self):
op = DIVU("$t1", "$t2")
op.execute(self.state)
hi = self.state.register("$hi")
lo = self.state.register("$lo")
self.assertEqual(hi, self.t1 % self.t2)
self.assertEqual(lo, self.t1 / self.t2)
def testMULT(self):
op = MULT("$t1", "$t2")
op.execute(self.state)
hi = self.state.register("$hi")
lo = self.state.register("$lo")
self.assertEqual(hi, 0)
self.assertEqual(lo, self.t1 * self.t2)
class TestBoolOperations(unittest.TestCase):
def setUp(self):
self.state = State([], [])
self.branch_state = State(["x", "y", "z", "BLAH", "LOOP"], [])
self.t0 = 0
self.t1 = 434
self.t2 = 0
self.state.set_register("$t0", self.t0)
self.state.set_register("$t1", self.t1)
self.state.set_register("$t2", self.t2)
self.branch_state.set_register("$t0", self.t0)
self.branch_state.set_register("$t1", self.t1)
self.branch_state.set_register("$t2", self.t2)
def testAND(self):
op = AND("$t0", "$t1", "$t2")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 0)
def testOR(self):
op = OR("$t0", "$t1", "$t2")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 434)
def testANDI(self):
op = ANDI("$t0", "$t1", 434)
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 434)
def testORI(self):
op = ORI("$t0", "$t1", 0)
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 434)
def testBEQ(self):
prior_val = self.branch_state.program_counter()
op = BEQ("$t1", "$t2", "LOOP")
op.execute(self.branch_state)
result = self.branch_state.program_counter()
self.assertEqual(result, prior_val)
self.branch_state.set_register("$pc", 0)
def testBNE(self):
prior_val = self.branch_state.program_counter()
op = BNE("$t1", "$t2", "LOOP")
op.execute(self.branch_state)
result = self.branch_state.program_counter()
self.assertEqual(result, 4)
self.branch_state.set_register("$pc", 0)
def testSLT(self):
op = SLT("$t0", "$t1", "$t2")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 0)
def testSLTI(self):
op = SLTI("$t0", "$t2", 1)
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 1)
def testSLTU(self):
op = SLTU("$t0", "$t1", "$t2")
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 0)
def testSLTIU(self):
op = SLTIU("$t0", "$t1", 0)
op.execute(self.state)
result = self.state.register("$t0")
self.assertEqual(result, 0)