def getAssignType(self, termname, bind):
termtype = self.getTermtype(termname)
if signaltype.isWire(termtype):
return 'assign'
if signaltype.isWireArray(termtype):
return 'assign'
if signaltype.isReg(termtype):
if bind.isClockEdge(): return 'clockedge'
return 'combination'
if signaltype.isRegArray(termtype):
if bind.isClockEdge(): return 'clockedge'
return 'combination'
if signaltype.isInteger(termtype):
if bind.isClockEdge(): return 'clockedge'
return 'combination'
if signaltype.isParameter(termtype):
return 'parameter'
if signaltype.isLocalparam(termtype):
return 'localparam'
if signaltype.isOutput(termtype):
return 'assign'
if signaltype.isInput(termtype):
return 'assign'
if signaltype.isFunction(termtype):
return 'assign'
if signaltype.isRename(termtype):
return 'assign'
if signaltype.isGenvar(termtype):
return 'genvar'
raise verror.DefinitionError('Unexpected Assignment Type: %s : %s' % (str(termname), str(termtype)))
def _discretion(self, visited_binddict, visited_sources):
terms = collections.OrderedDict()
parameter = collections.OrderedDict()
assign = collections.OrderedDict()
always_clockedge = collections.OrderedDict()
always_combination = collections.OrderedDict()
# discretion the signal desclaration
for source in visited_sources:
termtype = self.getTermtype(source)
if signaltype.isParameter(termtype): continue
if signaltype.isLocalparam(termtype): continue
terms[source] = self.terms[source]
for left, rights in visited_binddict.items():
for right in rights:
assign_type = self.getAssignType(left, right)
if assign_type == 'clockedge':
if not left in always_clockedge: always_clockedge[left] = set([])
always_clockedge[left].add(right)
elif assign_type == 'combination':
if not left in always_combination: always_combination[left] = set([])
always_combination[left].add(right)
elif assign_type == 'assign':
if not left in assign: assign[left] = set([])
assign[left].add(right)
elif assign_type == 'parameter':
parameter[left] = right
continue
elif assign_type == 'localparam':
parameter[left] = right
continue
if not left in terms: terms[left] = self.terms[left]
return terms, parameter, assign, always_clockedge, always_combination
def getAssignType(self, termname, bind):
termtype = self.getTermtype(termname)
if signaltype.isWire(termtype):
return 'assign'
if signaltype.isWireArray(termtype):
return 'assign'
if signaltype.isReg(termtype):
if bind.isClockEdge(): return 'clockedge'
return 'combination'
if signaltype.isRegArray(termtype):
if bind.isClockEdge(): return 'clockedge'
return 'combination'
if signaltype.isInteger(termtype):
if bind.isClockEdge(): return 'clockedge'
return 'combination'
if signaltype.isParameter(termtype):
return 'parameter'
if signaltype.isLocalparam(termtype):
return 'localparam'
if signaltype.isOutput(termtype):
return 'assign'
if signaltype.isInput(termtype):
return 'assign'
if signaltype.isFunction(termtype):
return 'assign'
if signaltype.isRename(termtype):
return 'assign'
if signaltype.isGenvar(termtype):
return 'genvar'
raise verror.DefinitionError('Unexpected Assignment Type: %s : %s' %
(str(termname), str(termtype)))
def resolveConstant(self):
# 2-pass
for bk, bv in sorted(self.binddict.items(), key=lambda x: len(x[0])):
termtype = self.getTerm(bk).termtype
if signaltype.isParameter(termtype) or signaltype.isLocalparam(
termtype):
rslt = self.optimizeConstant(bv[0].tree)
if isinstance(rslt, DFEvalValue):
self.constlist[bk] = rslt
for bk, bv in sorted(self.binddict.items(), key=lambda x: len(x[0])):
termtype = self.getTerm(bk).termtype
if signaltype.isParameter(termtype) or signaltype.isLocalparam(
termtype):
rslt = self.optimizeConstant(bv[0].tree)
if isinstance(rslt, DFEvalValue):
self.constlist[bk] = rslt
self.resolved_binddict = copy.deepcopy(self.binddict)
for bk, bv in sorted(self.binddict.items(), key=lambda x: len(x[0])):
new_bindlist = []
for bind in bv:
new_bind = copy.deepcopy(bind)
if bk in self.constlist:
new_bind.tree = self.constlist[bk]
new_bindlist.append(new_bind)
self.resolved_binddict[bk] = new_bindlist
self.resolved_terms = copy.deepcopy(self.terms)
for tk, tv in sorted(self.resolved_terms.items(),
key=lambda x: len(x[0])):
if tv.msb is not None:
rslt = self.optimizeConstant(tv.msb)
self.resolved_terms[tk].msb = rslt
if tv.lsb is not None:
rslt = self.optimizeConstant(tv.lsb)
self.resolved_terms[tk].lsb = rslt
if tv.dims is not None:
dims = []
for l, r in tv.dims:
l = self.optimizeConstant(l)
r = self.optimizeConstant(r)
dims.append((l, r))
self.resolved_terms[tk].dims = tuple(dims)
def resolveConstant(self):
# 2-pass
for bk, bv in sorted(self.binddict.items(), key=lambda x:len(x[0])):
termtype = self.getTerm(bk).termtype
if signaltype.isParameter(termtype) or signaltype.isLocalparam(termtype):
rslt = self.optimizeConstant(bv[0].tree)
if isinstance(rslt, DFEvalValue):
self.constlist[bk] = rslt
for bk, bv in sorted(self.binddict.items(), key=lambda x:len(x[0])):
termtype = self.getTerm(bk).termtype
if signaltype.isParameter(termtype) or signaltype.isLocalparam(termtype):
rslt = self.optimizeConstant(bv[0].tree)
if isinstance(rslt, DFEvalValue):
self.constlist[bk] = rslt
self.resolved_binddict = copy.deepcopy(self.binddict)
for bk, bv in sorted(self.binddict.items(), key=lambda x:len(x[0])):
new_bindlist = []
for bind in bv:
new_bind = copy.deepcopy(bind)
if bk in self.constlist:
new_bind.tree = self.constlist[bk]
new_bindlist.append(new_bind)
self.resolved_binddict[bk] = new_bindlist
self.resolved_terms = copy.deepcopy(self.terms)
for tk, tv in sorted(self.resolved_terms.items(), key=lambda x:len(x[0])):
if tv.msb is not None:
rslt = self.optimizeConstant(tv.msb)
self.resolved_terms[tk].msb = rslt
if tv.lsb is not None:
rslt = self.optimizeConstant(tv.lsb)
self.resolved_terms[tk].lsb = rslt
if tv.lenmsb is not None:
rslt = self.optimizeConstant(tv.lenmsb)
self.resolved_terms[tk].lenmsb = rslt
if tv.lenlsb is not None:
rslt = self.optimizeConstant(tv.lenlsb)
self.resolved_terms[tk].lenlsb = rslt
def _discretion(self, visited_binddict, visited_sources):
terms = collections.OrderedDict()
parameter = collections.OrderedDict()
assign = collections.OrderedDict()
always_clockedge = collections.OrderedDict()
always_combination = collections.OrderedDict()
# discretion the signal desclaration
for source in visited_sources:
termtype = self.getTermtype(source)
if signaltype.isParameter(termtype):
continue
if signaltype.isLocalparam(termtype):
continue
terms[source] = self.terms[source]
for left, rights in visited_binddict.items():
for right in rights:
assign_type = self.getAssignType(left, right)
if assign_type == 'clockedge':
if not left in always_clockedge:
always_clockedge[left] = set([])
always_clockedge[left].add(right)
elif assign_type == 'combination':
if not left in always_combination:
always_combination[left] = set([])
always_combination[left].add(right)
elif assign_type == 'assign':
if not left in assign:
assign[left] = set([])
assign[left].add(right)
elif assign_type == 'parameter':
parameter[left] = right
continue
elif assign_type == 'localparam':
parameter[left] = right
continue
if not left in terms:
terms[left] = self.terms[left]
return terms, parameter, assign, always_clockedge, always_combination
