def setUp(self):
self.memory = MemoryManager(None, 32)
self.bank = RegisterBank(self.memory)
self.bank[1] = 0xFFFF
self.bank[2] = 0xABAB
self.bank[3] = 1
self.bank[4] = 5
self.bank[5] = 8
self.bank[6] = -5
self.bank[7] = -8
self.bank[8] = 4
self.bank[9] = 0x0010
self.bank[10] = 0x0020
self.ib = InstructionAssembler()
class TestInstructionClosures(unittest.TestCase):
def setUp(self):
self.memory = MemoryManager(None, 32)
self.bank = RegisterBank(self.memory)
self.bank[1] = 0xFFFF
self.bank[2] = 0xABAB
self.bank[3] = 1
self.bank[4] = 5
self.bank[5] = 8
self.bank[6] = -5
self.bank[7] = -8
self.bank[8] = 4
self.bank[9] = 0x0010
self.bank[10] = 0x0020
self.ib = InstructionAssembler()
def testParameterCount(self):
argList1 = ['$3']
argList2 = ['$4', '$3']
argList3 = ['$2', '$9', '$1']
argList4 = ['$1', '$2', '$3', '$4']
# integer-arithmetical
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'add', argList1)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'add', argList2)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'add', argList4)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'addu', argList1)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'add', argList4)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'div', argList1)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'div', argList3)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'mult', argList1)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'mult', argList3)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'sub', argList1)
self.assertRaises(InstructionAssembler.WrongArgumentCount, self.ib, 'sub', argList4)
def testLoadStoreInstructions(self):
# check for parameter correctness
self.assertRaises(InstructionAssembler.InvalidParameter, self.ib.ins_sw, ['$3', 'lol($30)'])
self.assertRaises(InstructionAssembler.InvalidParameter, self.ib.ins_sh, ['$4', '00a($ra)'])
self.assertRaises(InstructionAssembler.InvalidParameter, self.ib.ins_lw, ['$5', '01($ro)'])
self.assertRaises(InstructionAssembler.InvalidParameter, self.ib.ins_lb, ['$6', '000005(30)'])
self.assertRaises(InstructionAssembler.InvalidRegisterName, self.ib.ins_sw, ['$ras', '14($30)'])
self.assertRaises(InstructionAssembler.InvalidRegisterName, self.ib.ins_sw, ['ras', '1($30)'])
self.ib.ins_sw(['$1', '0($9)'])(self.bank)
self.assertEqual(self.memory[0x0010, 4], 0xFFFF)
self.ib.ins_sw(['$0', '0($9)'])(self.bank)
self.assertEqual(self.memory[0x0010, 4], 0x0)
self.ib.ins_sw(['$2', '4($9)'])(self.bank)
self.assertEqual(self.memory[0x0014, 4], 0xABAB)
self.ib.ins_sw(['$2', '-4($9)'])(self.bank)
self.assertEqual(self.memory[0x000C, 4], 0xABAB)
unaligned_closure = self.ib.ins_sw(['$1', '1($9)'])
self.assertRaises(MIPS_Exception, unaligned_closure, self.bank)
unaligned_closure = self.ib.ins_sw(['$1', '2($9)'])
self.assertRaises(MIPS_Exception, unaligned_closure, self.bank)
unaligned_closure = self.ib.ins_sw(['$1', '-1($9)'])
self.assertRaises(MIPS_Exception, unaligned_closure, self.bank)
# self.ib.ins_sw(['$1', '0($9)'])(self.bank)
# self.assertEqual(memory[0x0010, 4], 0xFFFF)
#
# self.ib.ins_sw(['$1', '0($9)'])(self.bank)
# self.assertEqual(memory[0x0010, 4], 0xFFFF)
def testSetIfClosure_functionality(self):
# slt
self.ib.ins_slt(['$10', '$6', '$4'])(self.bank)
self.assertEqual(self.bank[10], 1)
self.ib.ins_slt(['$10', '$4', '$6'])(self.bank)
self.assertEqual(self.bank[10], 0)
self.ib.ins_slt(['$10', '$4', '$5'])(self.bank)
self.assertEqual(self.bank[10], 1)
self.ib.ins_slt(['$10', '$5', '$4'])(self.bank)
self.assertEqual(self.bank[10], 0)
self.ib.ins_slt(['$10', '$6', '$6'])(self.bank)
self.assertEqual(self.bank[10], 0)
self.ib.ins_slt(['$10', '$4', '$4'])(self.bank)
self.assertEqual(self.bank[10], 0)
# sltu
self.ib.ins_sltu(['$10', '$6', '$4'])(self.bank)
self.assertEqual(self.bank[10], 0)
self.ib.ins_sltu(['$10', '$6', '$7'])(self.bank)
self.assertEqual(self.bank[10], 0)
# slti
self.ib.ins_slti(['$10', '$5', '9'])(self.bank)
self.assertEqual(self.bank[10], 1)
self.ib.ins_slti(['$10', '$5', '8'])(self.bank)
self.assertEqual(self.bank[10], 0)
self.ib.ins_slti(['$10', '$5', '0'])(self.bank)
self.assertEqual(self.bank[10], 0)
self.ib.ins_slti(['$10', '$7', '0'])(self.bank)
self.assertEqual(self.bank[10], 1)
self.ib.ins_slti(['$10', '$7', '-9'])(self.bank)
self.assertEqual(self.bank[10], 0)
def testArithmeticalClosures_functionality(self):
# add
self.ib.ins_add(['$10', '$5', '$6'])(self.bank)
self.assertEqual(self.bank[10], 3)
self.ib.ins_add(['$10', '$5', '$3'])(self.bank)
self.assertEqual(self.bank[10], 9)
self.ib.ins_add(['$10', '$6', '$8'])(self.bank)
self.assertEqual(s32(self.bank[10]), -1)
# addu
self.ib.ins_addu(['$10', '$7', '$4'])(self.bank)
self.assertEqual(self.bank[10], 4294967293)
# addi
self.ib.ins_addi(['$10', '$5', '5'])(self.bank)
self.assertEqual(self.bank[10], 13)
self.ib.ins_addi(['$10', '$5', '-10'])(self.bank)
self.assertEqual(s32(self.bank[10]), -2)
# div
self.ib.ins_div(['$5', '$8'])(self.bank)
self.assertEqual(self.bank.HI, 0)
self.assertEqual(self.bank.LO, 2)
self.ib.ins_div(['$5', '$4'])(self.bank)
self.assertEqual(self.bank.HI, 3)
self.assertEqual(self.bank.LO, 1)
self.ib.ins_div(['$7', '$8'])(self.bank)
self.assertEqual(self.bank.HI, 0)
self.assertEqual(s32(self.bank.LO), -2)
# divu
self.ib.ins_divu(['$5', '$8'])(self.bank)
self.assertEqual(self.bank.HI, 0)
self.assertEqual(self.bank.LO, 2)
self.ib.ins_divu(['$7', '$2'])(self.bank)
self.assertEqual(self.bank.HI, 26978)
self.assertEqual(self.bank.LO, 97730)
# mult
self.ib.ins_mult(['$4', '$5'])(self.bank)
self.assertEqual(self.bank.HI, 0)
self.assertEqual(self.bank.LO, 40)
self.ib.ins_mult(['$6', '$5'])(self.bank)
self.assertEqual(self.bank.HI, 0xFFFFFFFF)
self.assertEqual(self.bank.LO, 0xffffffd8)
self.ib.ins_mult(['$6', '$7'])(self.bank)
self.assertEqual(self.bank.HI, 0)
self.assertEqual(self.bank.LO, 40)
# multu
self.ib.ins_multu(['$4', '$5'])(self.bank)
self.assertEqual(self.bank.HI, 0)
self.assertEqual(self.bank.LO, 40)
self.ib.ins_multu(['$7', '$8'])(self.bank)
self.assertEqual(self.bank.HI, 0x3)
self.assertEqual(self.bank.LO, 0xffffffe0)
# sub
self.ib.ins_sub(['$10', '$5', '$4'])(self.bank)
self.assertEqual(self.bank[10], 3)
self.ib.ins_sub(['$10', '$5', '$4'])(self.bank)
self.assertEqual(self.bank[10], 3)
self.ib.ins_sub(['$10', '$6', '$7'])(self.bank)
self.assertEqual(s32(self.bank[10]), 3)