def test_page_reference(self):
self.pdp.accumulator = 7
self.pdp.memory[octal('200')] = self.instruction(
'AND 202', octal('200')) # in page 1
self.pdp.memory[octal('202')] = 4
self.pdp.run(start=octal('200'), stepping=True)
self.check(accumulator=4)
def test_tad(self):
self.link = 1
self.pdp.accumulator = octal('007')
self.pdp.memory[0] = self.instruction('TAD 2')
self.pdp.memory[2] = 1
self.pdp.run(stepping=True)
self.check(accumulator=octal('010'), link=0)
def test_page_assignment(self):
self.pdp.accumulator = 7
self.pdp.memory[octal('200')] = self.instruction(
'DCA 202', octal('200')) # in page 1
self.pdp.memory[octal('202')] = 4
self.pdp.run(start=octal('200'), stepping=True)
self.check(memory={octal('202'): 7}, accumulator=0)
def test_indirect_and_zero_reference(self):
self.pdp.accumulator = 7
self.pdp.memory[octal('200')] = self.instruction(
'AND I 2', octal('200')) # 2 in page 0
self.pdp.memory[2] = octal('203')
self.pdp.memory[octal('203')] = 4
self.pdp.run(start=octal('200'), stepping=True)
self.check(accumulator=4)
def effective_offset(self, parsed):
offset = self.evaluate_expression(parsed)
if offset < octal('200'):
parsed['Z'] = 'Z' # force PAGE 0
else:
offset_page = offset & octal('7600')
here_page = self.planter.ic & octal('7600')
if here_page != offset_page:
raise Exception('%s offset refers to an inaccessible page' %
parsed['line'])
offset = offset & octal('177')
return offset
def test_g1order(self):
self.pdp.link = 0
self.pdp.accumulator = octal('1234')
# order should be CLA (ac=0); CMA (ac = 7777), IAC (acc=0, link = 1), RAL (acc = 1, link =0)
self.pdp.memory[0] = self.instruction('RAL IAC CLA CMA') #
self.pdp.run(stepping=True)
self.check(accumulator=1, link=0)
def test_iar(self):
self.pdp.link = 0
self.pdp.accumulator = octal('7777')
self.pdp.memory[0] = self.instruction(
'RAL IAC') # IAC should execute first!
self.pdp.run(stepping=True)
self.check(accumulator=1, link=0)
def test_indirect_and_zero_assignment(self):
self.pdp.accumulator = 7
self.pdp.memory[octal('200')] = self.instruction(
'DCA I Z 202', octal('200')) # 2 in page 0
self.pdp.memory[2] = octal('203')
self.pdp.memory[octal('203')] = 4
self.pdp.run(start=octal('200'), stepping=True)
self.checker.check(memory={octal('203'): 7}, accumulator=0)
def test_search_1234(self):
self.pal.assemble(StringIO(read('search-1234.pal')), list_symbols=True)
self.pdp8.run(start=octal('200'), debugging=False)
self.checker.check(accumulator=0)
def test_assembles_one_char(self):
self.pal.assemble(StringIO(read('one_char.pal')), list_symbols=True)
self.pdp8.run(start=octal('200'), debugging=True)
self.checker.check(output='A')
def test_assembles_hw(self):
self.pal.assemble(StringIO(read('hello.pal')), list_symbols=True)
self.pdp8.run(start=octal('200'), debugging=True)
self.checker.check(output='HELLO, WORLD!\r\n')
def test_assembles_mul_sub(self):
self.pal.assemble(StringIO(read('mul-sub.pal')), list_symbols=True)
self.pdp8.run(start=octal('200'), debugging=True)
self.checker.check({136: 6})
def test_assembles_mult(self):
self.pal.assemble(StringIO(read('mult.pal')))
self.pdp8.run(start=octal('200'), debugging=True)
self.checker.check(accumulator=648)
def test_rtl(self):
self.pdp.link = 0
self.pdp.accumulator = octal('7777')
self.pdp.memory[0] = self.instruction('RTL')
self.pdp.run(stepping=True)
self.check(accumulator=octal('7775'), link=1)
def test_cml1(self):
self.pdp.link = 1
self.pdp.accumulator = 0
self.pdp.memory[0] = self.instruction('CML')
self.pdp.run(stepping=True)
self.check(accumulator=octal('0'), link=0)
def test_p_zero_assignment(self):
self.pdp.accumulator = 7
self.pdp.memory[octal('200')] = self.instruction('DCA Z 2')
self.pdp.memory[2] = 4
self.pdp.run(start=octal('200'), stepping=True)
self.check(memory={2: 7}, accumulator=0)
def test_iac1(self):
self.pdp.link = 0
self.pdp.accumulator = octal('7777')
self.pdp.memory[0] = self.instruction('IAC')
self.pdp.run(stepping=True)
self.check(accumulator=0, link=1)
def test_and(self):
self.pdp.accumulator = octal('7070')
self.pdp.memory[0] = self.instruction('AND 2')
self.pdp.memory[2] = octal('1120')
self.pdp.run(stepping=True)
self.check(accumulator=octal('1020'))
def test_isz(self):
self.pal.assemble(StringIO(read('isz-test.pal')), list_symbols=True)
self.pdp8.run(start=octal('200'), debugging=True)
self.checker.check(accumulator=0)
def test_tad_with_carry(self):
self.pdp.accumulator = octal('7777')
self.pdp.memory[0] = self.instruction('TAD 2')
self.pdp.memory[2] = 1
self.pdp.run(stepping=True)
self.check(accumulator=0, link=1)
def test_sma(self):
self.pdp.accumulator = octal('7777') # -1
self.pdp.memory[0] = self.instruction('SMA')
self.pdp.run(stepping=True)
self.check(pc=2)
def test_ral11(self):
self.pdp.link = 1
self.pdp.accumulator = octal('3777')
self.pdp.memory[0] = self.instruction('RAL')
self.pdp.run(stepping=True)
self.check(accumulator=octal('7777'), link=0)
