def main():
args = parseArgs()
dvm = DVM(args.debug, args.stack)
programData = []
# The assembler writes the program to a file as binary data
# stored as 4 byte integers. This reads the file, 4 bytes at
# a time, converts it back to an integer, and then appends
# it to an array.
with open(args.program) as fp:
for block in iter(lambda: fp.read(4), ""):
value = unpack('@I', block)[0]
programData.append(value)
dvm.loadProgram(programData)
if args.console:
debugging_console(dvm)
else:
while dvm.running == True:
dvm.executeNextInstruction()
def setUp(self):
self.dvm = DVM()
class TestDVM(unittest.TestCase):
def setUp(self):
self.dvm = DVM()
def tearDown(self):
del self.dvm
def test_creation(self):
self.assertIsInstance(self.dvm, DVM)
self.assertEqual(self.dvm.position, 1)
def testNop(self):
self.dvm.nop(0)
self.assertEqual(self.dvm.position, 2)
def testPushData(self):
self.dvm.push(self.dvm.data_flag | 10)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.stack[0], 10)
self.assertEqual(self.dvm.position, 2)
def testPushStack(self):
self.dvm.push(self.dvm.data_flag | 10)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.stack[0], 10)
self.dvm.push(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.stack[0], 10)
self.assertEqual(self.dvm.position, 3)
def testPushPointer(self):
self.dvm.setMem(4, 15)
self.dvm.push(self.dvm.data_flag | self.dvm.pointer_flag | 4)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.stack[0], 15)
self.assertEqual(self.dvm.position, 2)
def testPop(self):
self.dvm.pushStack(1)
self.dvm.pushStack(2)
self.dvm.pushStack(3)
self.dvm.pop(1)
self.dvm.pop(2)
self.dvm.pop(3)
self.assertEqual(self.dvm.getMem(1), 3)
self.assertEqual(self.dvm.getMem(2), 2)
self.assertEqual(self.dvm.getMem(3), 1)
self.assertEqual(self.dvm.position, 4)
def testJumpData(self):
self.dvm.jump(self.dvm.data_flag | 10)
self.assertEqual(self.dvm.position, 10)
def testJumpStack(self):
self.dvm.pushStack(15)
self.assertEqual(len(self.dvm.stack), 1)
self.dvm.jump(0)
self.assertEqual(len(self.dvm.stack), 0)
self.assertEqual(self.dvm.position, 15)
def testJumpPointer(self):
self.dvm.setMem(4, 10)
self.dvm.pushStack(4)
self.dvm.jump(self.dvm.pointer_flag)
self.assertEqual(self.dvm.position, 10)
def testBranchTrueData(self):
self.dvm.pushStack(1)
self.dvm.branch(self.dvm.data_flag | 15)
self.assertEqual(len(self.dvm.stack), 0)
self.assertEqual(self.dvm.position, 15)
def testBranchTrueStack(self):
self.dvm.pushStack(10)
self.dvm.pushStack(1)
self.dvm.branch(0)
self.assertEqual(len(self.dvm.stack), 0)
self.assertEqual(self.dvm.position, 10)
def testBranchTrueDataPointer(self):
self.dvm.pushStack(1)
self.dvm.setMem(15, 10)
self.dvm.branch(self.dvm.pointer_flag | self.dvm.data_flag | 15)
self.assertEqual(len(self.dvm.stack), 0)
self.assertEqual(self.dvm.position, 10)
def testBranchTrueStackPointer(self):
self.dvm.pushStack(15)
self.dvm.pushStack(1)
self.dvm.setMem(15, 10)
self.dvm.branch(self.dvm.pointer_flag | 0)
self.assertEqual(len(self.dvm.stack), 0)
self.assertEqual(self.dvm.position, 10)
def testBranchFalse(self):
self.dvm.pushStack(0)
self.dvm.branch(15)
self.assertEqual(len(self.dvm.stack), 0)
self.assertEqual(self.dvm.position, 2)
def testEqualDataTrue(self):
self.dvm.pushStack(4)
self.dvm.equal(self.dvm.data_flag | 4)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testEqualStackTrue(self):
self.dvm.pushStack(4)
self.dvm.pushStack(4)
self.dvm.equal(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testEqualDataFalse(self):
self.dvm.pushStack(5)
self.dvm.equal(self.dvm.data_flag | 4)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 0)
def testEqualStackFalse(self):
self.dvm.pushStack(5)
self.dvm.pushStack(4)
self.dvm.equal(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 0)
def testGreaterDataTrue(self):
self.dvm.pushStack(5)
self.dvm.greater(self.dvm.data_flag | 4)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testGreaterStackTrue(self):
self.dvm.pushStack(5)
self.dvm.pushStack(6)
self.dvm.greater(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testGreaterDataFalse(self):
self.dvm.pushStack(7)
self.dvm.greater(self.dvm.data_flag | 8)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 0)
def testGreaterStackFalse(self):
self.dvm.pushStack(7)
self.dvm.pushStack(6)
self.dvm.greater(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 0)
def testLesserDataTrue(self):
self.dvm.pushStack(7)
self.dvm.lesser(self.dvm.data_flag | 8)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testLesserStackTrue(self):
self.dvm.pushStack(7)
self.dvm.pushStack(6)
self.dvm.lesser(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testLesserDataFalse(self):
self.dvm.pushStack(5)
self.dvm.lesser(self.dvm.data_flag | 4)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 0)
def testLesserStackFalse(self):
self.dvm.pushStack(5)
self.dvm.pushStack(6)
self.dvm.lesser(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 0)
def testAddData(self):
self.dvm.pushStack(5)
self.dvm.add(self.dvm.data_flag | 6)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 11)
def testAddStack(self):
self.dvm.pushStack(5)
self.dvm.pushStack(6)
self.dvm.add(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 11)
def testSubtractData(self):
self.dvm.pushStack(5)
self.dvm.subtract(self.dvm.data_flag | 4)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testSubtractStack(self):
self.dvm.pushStack(5)
self.dvm.pushStack(6)
self.dvm.subtract(0)
self.assertEqual(len(self.dvm.stack), 1)
self.assertEqual(self.dvm.position, 2)
self.assertEqual(self.dvm.stack[0], 1)
def testHaltStack(self):
self.dvm.pushStack(5)
self.assertEqual(self.dvm.status, 0)
self.assertTrue(self.dvm.running)
self.dvm.halt(5)
self.assertEqual(self.dvm.status, 5)
self.assertFalse(self.dvm.running)
def testHaltData(self):
self.assertEqual(self.dvm.status, 0)
self.assertTrue(self.dvm.running)
self.dvm.halt(self.dvm.data_flag | 5)
self.assertEqual(self.dvm.status, 5)
self.assertFalse(self.dvm.running)
def testHaltDataPointer(self):
self.dvm.pushStack(10)
self.assertEqual(self.dvm.status, 0)
self.assertTrue(self.dvm.running)
self.dvm.setMem(10, 5)
self.dvm.halt(self.dvm.pointer_flag | 10)
self.assertEqual(self.dvm.status, 5)
self.assertFalse(self.dvm.running)
def testHaltStackPointer(self):
self.assertEqual(self.dvm.status, 0)
self.assertTrue(self.dvm.running)
self.dvm.setMem(10, 5)
self.dvm.halt(self.dvm.pointer_flag | self.dvm.data_flag | 10)
self.assertEqual(self.dvm.status, 5)
self.assertFalse(self.dvm.running)
