def testLength(self):
op = SingleOpcodeDecoder("00000000 1 NOP");
self.assertEquals(op.length(), 1);
op = SingleOpcodeDecoder("11100110 2 AND A, v8");
self.assertEquals(op.length(), 2);
op = SingleOpcodeDecoder("11100000 3 LD [FF00+v8], A");
self.assertEquals(op.length(), 2);
op = SingleOpcodeDecoder("001FF000 2 JP v8_rel, #F");
self.assertEquals(op.length(), 2);
op = SingleOpcodeDecoder("00001000 5 LD16 [v16], SP");
self.assertEquals(op.length(), 3);
def testDecode(self):
op = SingleOpcodeDecoder("00000000 1 NOP");
self.assertEquals(str(op.decode([0], address.fromPhysical(0))), "NOP");
op = SingleOpcodeDecoder("11100110 2 AND A, v8");
self.assertEquals(str(op.decode([0b11100110, 0xfa], address.fromPhysical(0))).strip().upper(), "AND\tA, 0XFA");
op = SingleOpcodeDecoder("11100000 3 LD [FF00+v8], A");
self.assertEquals(str(op.decode([0b11100000, 0xfa], address.fromPhysical(0))).strip().upper(), "LD\t[(V):FFFA], A");
op = SingleOpcodeDecoder("001FF000 2 JP v8_rel, #F");
self.assertEquals(str(op.decode([0b00100000, 0x10], address.fromPhysical(0x100))).strip().upper(), "JP\t0000:0112, FNZ");
op = SingleOpcodeDecoder("00001000 5 LD16 [v16], SP");
self.assertEquals(str(op.decode([0b00001000, 0xAA,0xBB], address.fromPhysical(0x100))).strip().upper(), "LD16\t[(V):BBAA], SP");
def testMatch(self):
op = SingleOpcodeDecoder("11100110 2 AND A, v8");
self.assertTrue(op.match(0b11100110));
self.assertFalse(op.match(0b11000110));
def testMatchParams(self):
op = SingleOpcodeDecoder("01SSSZZZ 1 LD #S, #Z");
self.assertTrue(op.match(0b01000000));
self.assertTrue(op.match(0b01111111));
self.assertFalse(op.match(0b11000000));
def testMatchNop(self):
op = SingleOpcodeDecoder("00000000 1 NOP");
self.assertTrue(op.match(0));
self.assertFalse(op.match(1));