def __init__(self, switchOn):
switchOn = _intfToSig(switchOn)
if not isinstance(switchOn, RtlSignalBase):
raise HwtSyntaxError("Select is not signal, it is not certain"
" if this an error or desire")
if arr_any(discoverEventDependency(switchOn), lambda x: True):
raise HwtSyntaxError("Can not switch on result of event operator")
super(Switch, self).__init__(switchOn, [])
switchOn.ctx.statements.add(self)
def __init__(self, cond, *statements):
"""
:param cond: condition in if
:param statements: list of statements which should be active if condition is met
"""
self.cond = _intfToSig(cond)
assert isinstance(self.cond, RtlSignalBase)
self.nowIsEventDependent = bool(list(discoverEventDependency(cond)))
self.elifConds = []
c = AndReducedContainer()
c.add(self.cond)
self._appendStatements(c, statements)
def Elif(self, cond, *statements):
cond = _intfToSig(cond)
self.nowIsEventDependent = self.nowIsEventDependent or\
arr_any(discoverEventDependency(cond), lambda x: True)
thisCond = AndReducedContainer()
thisCond.add(cond)
for c in reversed(self.elifConds):
thisCond.add(~c)
thisCond.add(~self.cond)
self._appendStatements(thisCond, statements)
self.elifConds.append(cond)
return self
def Elif(self, cond, *statements):
assert self.parentStm is None
self.rank += 1
cond_sig = _intfToSig(cond)
self._now_is_event_dependent = arr_any(
discoverEventDependency(cond_sig), lambda x: True)
self._inputs.append(cond_sig)
cond_sig.endpoints.append(self)
case = []
self.elIfs.append((cond_sig, case))
self._register_stements(statements, case)
return self
def __init__(self, cond, *statements):
"""
:param cond: condition in if statement
:param statements: list of statements which should be active
if condition is met
"""
cond_sig = _intfToSig(cond)
if not isinstance(cond_sig, RtlSignalBase):
raise IntfLvlConfErr("Condition is not signal, it is not certain"
" if this is an error or desire ", cond_sig)
super(If, self).__init__(cond_sig)
self.rank = 1
self._inputs.append(cond_sig)
cond_sig.endpoints.append(self)
ev_dep = arr_any(discoverEventDependency(cond_sig), lambda x: True)
self._event_dependent_from_branch = 0 if ev_dep else None
self._register_stements(statements, self.ifTrue)
self._get_rtl_context().statements.add(self)
