def test_umull_z(self):
mul = 3 * 0
pre_c = self.rf.read('APSR_C')
pre_v = self.rf.read('APSR_V')
self.assertEqual(self.rf.read('R1'), mul & Mask(32))
self.assertEqual(self.rf.read('R2'), (mul >> 32) & Mask(32))
self._checkFlagsNZCV(0, 1, pre_c, pre_v)
def test_umull_max(self):
mul = 0xfffffffe**2
pre_c = self.rf.read('APSR_C')
pre_v = self.rf.read('APSR_V')
self.assertEqual(self.rf.read('R1'), mul & Mask(32))
self.assertEqual(self.rf.read('R2'), mul >> 32)
self._checkFlagsNZCV(1, 0, pre_c, pre_v)
def test_umull_still32(self):
mul = 2 * 2
pre_c = self.rf.read('APSR_C')
pre_v = self.rf.read('APSR_V')
self.assertEqual(self.rf.read('R1'), mul & Mask(32))
self.assertEqual(self.rf.read('R2'), mul >> 32)
self._checkFlagsNZCV(0, 0, pre_c, pre_v)
def test_ldrsb_reg_off_neg(self):
self.cpu.stack_push(0x2ff)
self.cpu.stack_push(48)
self.cpu.execute()
self.assertEqual(self.rf.read('R1'), Mask(32))
def test_ldrsb_reg_off_neg(self):
self.cpu.stack_push(0x2ff)
self.cpu.stack_push(48)
emulate_next(self.cpu)
self.assertEqual(self.rf.read('R1'), Mask(32))
