def slice_to_SLICE(sliceVals, width): """convert python slice to value of SLICE hdl type""" if sliceVals.step is not None: raise NotImplementedError() start = sliceVals.start stop = sliceVals.stop if sliceVals.start is None: start = INT.fromPy(width) else: start = toHVal(sliceVals.start) if sliceVals.stop is None: stop = INT.fromPy(0) else: stop = toHVal(sliceVals.stop) startIsVal = isinstance(start, Value) stopIsVal = isinstance(stop, Value) indexesAreValues = startIsVal and stopIsVal if indexesAreValues: updateTime = max(start.updateTime, stop.updateTime) else: updateTime = -1 return Slice.getValueCls()((start, stop), SLICE, 1, updateTime)
def test_int_neg(self): self.assertEqual(int(INT.fromPy(-10)), -10) self.assertEqual(int(-INT.fromPy(10)), -10) self.assertEqual(int(-INT.fromPy(10)), -10) v = -INT.fromPy(None) self.assertEqual(v.val, 0) self.assertEqual(v.vldMask, 0)
def test_int_neg(self): self.assertEqual(int(INT.fromPy(-10)), -10) self.assertEqual(int(-INT.fromPy(10)), -10) self.assertEqual(int(-INT.fromPy(10)), -10) v = -INT.fromPy(None) self.assertEqual(v.val, 0) self.assertEqual(v.vldMask, 0)
def test_int_to_bool(self): self.assertFalse(bool(INT.fromPy(0)._auto_cast(BOOL))) self.assertTrue(bool(INT.fromPy(1)._auto_cast(BOOL))) self.assertTrue(bool(INT.fromPy(-11)._auto_cast(BOOL))) self.assertTrue(bool(INT.fromPy(500)._auto_cast(BOOL))) with self.assertRaises(ValueError): bool(INT.fromPy(None)._auto_cast(BOOL))
def test_int_to_bool(self): self.assertFalse(bool(INT.fromPy(0)._auto_cast(BOOL))) self.assertTrue(bool(INT.fromPy(1)._auto_cast(BOOL))) self.assertTrue(bool(INT.fromPy(-11)._auto_cast(BOOL))) self.assertTrue(bool(INT.fromPy(500)._auto_cast(BOOL))) with self.assertRaises(ValueError): bool(INT.fromPy(None)._auto_cast(BOOL))
def __setitem__(self, index, value): """ Only syntax sugar for user, not used inside HWT * In HW design is not used (__getitem__ returns "reference" and it is used) * In simulator is used _setitem__val directly """ if isinstance(index, int): index = INT.fromPy(index) else: assert isinstance(self, Value) assert index._dtype == INT, index._dtype if not isinstance(value, Value): value = self._dtype.elmType.fromPy(value) else: assert value._dtype == self._dtype.elmType, (value._dtype, self._dtype.elmType) return self._setitem__val(index, value)
def hInt(pyVal): """ create hdl integer value (for example integer value in vhdl)""" return INT.fromPy(pyVal)