def _concat(self, other):
w = self._dtype.bit_length()
other_w = other._dtype.bit_length()
resWidth = w + other_w
resT = vecT(resWidth)
if areValues(self, other):
return self._concat__val(other)
else:
w = self._dtype.bit_length()
other_w = other._dtype.bit_length()
resWidth = w + other_w
resT = vecT(resWidth)
# is instance of signal
if isinstance(other, InterfaceBase):
other = other._sig
if isinstance(other._dtype, Bits):
if other._dtype.signed is not None:
other = other._vec()
elif other._dtype == BOOL:
other = other._convert(BIT)
else:
raise TypeError(other._dtype)
if self._dtype.signed is not None:
self = self._vec()
return Operator.withRes(AllOps.CONCAT, [self, other], resT)\
._convert(vecT(resWidth, signed=self._dtype.signed))
def __ne__(self, other):
assert self._dtype is other._dtype
if areValues(self, other):
return self._ne__val(other)
else:
return Operator.withRes(AllOps.NEQ, [self, other], BOOL)
def boolCmpOp(self, other, op, evalFn=None):
other = toHVal(other)
if evalFn is None:
evalFn = op._evalFn
if areValues(self, other):
return boolCmpOp__val(self, other, op, evalFn)
else:
return Operator.withRes(op, [self, other._convert(BOOL)], BOOL)
def intOp(self, other, op, resT, evalFn=None):
if evalFn is None:
evalFn = op._evalFn
other = toHVal(other)._convert(INT)
if areValues(self, other):
return intOp__val(self, other, op, resT, evalFn)
else:
return Operator.withRes(op, [self, other], resT)
def bitsArithOp(self, other, op):
other = toHVal(other)
assert isinstance(other._dtype, (Integer, Bits))
if areValues(self, other):
return bitsArithOp__val(self, other, op)
else:
resT = self._dtype
if self._dtype.signed is None:
self = self._unsigned()
if isinstance(other._dtype, Bits):
other = other._convSign(self._dtype.signed)
elif isinstance(other._dtype, Integer):
pass
else:
raise TypeError("%s %s %s" % (repr(self), repr(op), repr(other)))
o = Operator.withRes(op, [self, other], self._dtype)
return o._convert(resT)
def __mul__(self, other):
other = toHVal(other)
assert isinstance(other._dtype, (Integer, Bits))
if areValues(self, other):
return self._mul__val(other)
else:
resT = getMulResT(self._dtype, other._dtype)
if self._dtype.signed is None:
self = self._unsigned()
if isinstance(other._dtype, Bits) and other._dtype.signed is None:
other = other._unsigned()
elif isinstance(other._dtype, Integer):
pass
else:
raise TypeError("%s %s %s" % (repr(self), repr(AllOps.MUL), repr(other)))
subResT = vecT(resT.bit_length(), self._dtype.signed)
o = Operator.withRes(AllOps.MUL, [self, other], subResT)
return o._convert(resT)
def __getitem__(self, key):
iamVal = isinstance(self, Value)
st = self._dtype
l = st.bit_length()
if l == 1:
assert st.forceVector # assert not indexing on single bit
isSlice = isinstance(key, slice)
isSLICE = isinstance(key, Slice.getValueCls())
if areValues(self, key):
return self._getitem__val(key)
elif isSlice or isSLICE:
if isSlice:
if key.step is not None:
raise NotImplementedError()
start = key.start
stop = key.stop
if key.start is None:
start = boundryFromType(self, 0) + 1
else:
start = toHVal(key.start)
if key.stop is None:
stop = boundryFromType(self, 1)
else:
stop = toHVal(key.stop)
else:
start = key.val[0]
stop = key.val[1]
indexesAreValues = isinstance(start, Value) and isinstance(stop, Value)
if indexesAreValues and start.val == l and stop.val == 0:
# selecting all bits no conversion needed
return self
if iamVal and indexesAreValues:
raise NotImplementedError("[TODO] bit select on value")
else:
key = (start - INT.fromPy(1))._downto(stop)
# [TODO] type can be wrong, but we need to get rid off widthConstr and use only width
_resWidth = (start - 1 - stop)._downto(0)
resT = Bits(widthConstr=_resWidth, forceVector=True, signed=st.signed)
elif isinstance(key, (int, IntegerVal)):
key = toHVal(key)
resT = BIT
elif isinstance(key, RtlSignalBase):
t = key._dtype
if isinstance(t, Integer):
resT = BIT
elif isinstance(t, Slice):
resT = Bits(widthConstr=key, forceVector=st.forceVector, signed=st.signed)
elif isinstance(t, Bits):
resT = BIT
key = key._convert(INT)
else:
raise TypeError("Index operation not implemented for index of type %s" % (repr(t)))
else:
raise TypeError("Index operation not implemented for index %s" % (repr(key)))
# [TODO] boundary check
return Operator.withRes(AllOps.INDEX, [self, key], resT)
def _downto(self, other):
other = toHVal(other)._convert(INT)
if areValues(self, other):
return self._downto__val(other)
else:
return Operator.withRes(AllOps.DOWNTO, [self, other], SLICE)