def _analyzeGens(top, absnames):
genlist = []
for g in top:
if isinstance(g, _UserCode):
tree = g
elif isinstance(g, (_AlwaysComb, _AlwaysSeq, _Always)):
f = g.func
tree = g.ast
tree.symdict = f.__globals__.copy()
tree.callstack = []
# handle free variables
tree.nonlocaldict = {}
if f.__code__.co_freevars:
for n, c in zip(f.__code__.co_freevars, f.__closure__):
obj = c.cell_contents
tree.symdict[n] = obj
# currently, only intbv as automatic nonlocals (until Python 3.0)
if isinstance(obj, intbv):
tree.nonlocaldict[n] = obj
tree.name = absnames.get(id(g), str(_Label("BLOCK"))).upper()
v = _AttrRefTransformer(tree)
v.visit(tree)
v = _FirstPassVisitor(tree)
v.visit(tree)
if isinstance(g, _AlwaysComb):
v = _AnalyzeAlwaysCombVisitor(tree, g.senslist)
elif isinstance(g, _AlwaysSeq):
v = _AnalyzeAlwaysSeqVisitor(tree, g.senslist, g.reset,
g.sigregs, g.varregs)
else:
v = _AnalyzeAlwaysDecoVisitor(tree, g.senslist)
v.visit(tree)
else: # @instance
f = g.gen.gi_frame
tree = g.ast
tree.symdict = f.f_globals.copy()
tree.symdict.update(f.f_locals)
tree.nonlocaldict = {}
tree.callstack = []
tree.name = absnames.get(id(g), str(_Label("BLOCK"))).upper()
v = _AttrRefTransformer(tree)
v.visit(tree)
v = _FirstPassVisitor(tree)
v.visit(tree)
v = _AnalyzeBlockVisitor(tree)
v.visit(tree)
genlist.append(tree)
return genlist
def __init__(self, genfunc):
self.genfunc = genfunc
self.gen = genfunc()
# infer symdict
f = self.funcobj
varnames = f.__code__.co_varnames
symdict = {}
for n, v in f.__globals__.items():
if n not in varnames:
symdict[n] = v
# handle free variables
freevars = f.__code__.co_freevars
if freevars:
closure = (c.cell_contents for c in f.__closure__)
symdict.update(zip(freevars, closure))
self.symdict = symdict
tree = self.ast
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.inputs
self.outputs = v.outputs
self.inouts = v.inouts
self.embedded_func = v.embedded_func
def __init__(self, func, symdict):
self.symdict = symdict
s = inspect.getsource(func)
s = _dedent(s)
tree = ast.parse(s)
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.results["input"]
self.outputs = v.results["output"]
inouts = v.results["inout"] | self.inputs.intersection(self.outputs)
if inouts:
raise AlwaysCombError(_error.SignalAsInout % inouts)
if v.results["embedded_func"]:
raise AlwaysCombError(_error.EmbeddedFunction)
senslist = []
for n in self.inputs:
s = self.symdict[n]
if isinstance(s, _Signal):
senslist.append(s)
elif _isListOfSigs(s):
senslist.extend(s)
self.senslist = tuple(senslist)
if len(self.senslist) == 0:
raise AlwaysCombError(_error.EmptySensitivityList)
super(_AlwaysComb, self).__init__(func, senslist)
def __init__(self, genfunc, callinfo):
self.callinfo = callinfo
self.callername = callinfo.name
self.modctxt = callinfo.modctxt
self.genfunc = genfunc
self.gen = genfunc()
# infer symdict
f = self.funcobj
varnames = f.__code__.co_varnames
symdict = {}
for n, v in callinfo.symdict.items():
if n not in varnames:
symdict[n] = v
self.symdict = symdict
# print modname, genfunc.__name__
tree = self.ast
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.inputs
self.outputs = v.outputs
self.inouts = v.inouts
self.embedded_func = v.embedded_func
self.sigdict = v.sigdict
self.losdict = v.losdict
def __init__(self, func, symdict):
self.func = func
self.symdict = symdict
s = inspect.getsource(func)
s = _dedent(s)
tree = ast.parse(s)
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.inputs
self.outputs = v.outputs
senslist = []
for n in self.inputs:
s = self.symdict[n]
if isinstance(s, _Signal):
senslist.append(s)
else: # list of sigs
senslist.extend(s)
self.senslist = tuple(senslist)
self.gen = self.genfunc()
if len(self.senslist) == 0:
raise AlwaysCombError(_error.EmptySensitivityList)
if len(self.senslist) == 1:
W = _SignalWaiter
else:
W = _SignalTupleWaiter
self.waiter = W(self.gen)
def __init__(self, genfunc):
self.genfunc = genfunc
self.gen = genfunc()
# infer symdict
f = self.funcobj
varnames = f.__code__.co_varnames
symdict = {}
for n, v in f.__globals__.items():
if n not in varnames:
symdict[n] = v
# handle free variables
freevars = f.__code__.co_freevars
if freevars:
closure = (c.cell_contents for c in f.__closure__)
symdict.update(zip(freevars, closure))
self.symdict = symdict
tree = self.ast
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.inputs
self.outputs = v.outputs
self.inouts = v.inouts
self.embedded_func = v.embedded_func
def __init__(self, func):
senslist = []
super(_AlwaysComb, self).__init__(func, senslist)
s = inspect.getsource(func)
s = _dedent(s)
tree = ast.parse(s)
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.results['input']
self.outputs = v.results['output']
inouts = v.results['inout'] | self.inputs.intersection(self.outputs)
if inouts:
raise AlwaysCombError(_error.SignalAsInout % inouts)
if v.results['embedded_func']:
raise AlwaysCombError(_error.EmbeddedFunction)
for n in self.inputs:
s = self.symdict[n]
if isinstance(s, _Signal):
senslist.append(s)
elif _isListOfSigs(s):
senslist.extend(s)
self.senslist = tuple(senslist)
if len(self.senslist) == 0:
raise AlwaysCombError(_error.EmptySensitivityList)
def __init__(self, genfunc, callinfo):
self.callinfo = callinfo
self.callername = callinfo.name
self.modctxt = callinfo.modctxt
self.genfunc = genfunc
self.gen = genfunc()
# infer symdict
f = self.funcobj
varnames = f.__code__.co_varnames
symdict = {}
for n, v in callinfo.symdict.items():
if n not in varnames:
symdict[n] = v
self.symdict = symdict
# print modname, genfunc.__name__
tree = self.ast
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.inputs
self.outputs = v.outputs
self.inouts = v.inouts
self.embedded_func = v.embedded_func
self.sigdict = v.sigdict
self.losdict = v.losdict
def __init__(self, func, symdict):
self.func = func
self.symdict = symdict
s = inspect.getsource(func)
s = _dedent(s)
tree = ast.parse(s)
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
self.inputs = v.inputs
self.outputs = v.outputs
senslist = []
for n in self.inputs:
s = self.symdict[n]
if isinstance(s, _Signal):
senslist.append(s)
else: # list of sigs
senslist.extend(s)
self.senslist = tuple(senslist)
self.gen = self.genfunc()
if len(self.senslist) == 0:
raise AlwaysCombError(_error.EmptySensitivityList)
if len(self.senslist) == 1:
W = _SignalWaiter
else:
W = _SignalTupleWaiter
self.waiter = W(self.gen)
def _analyzeGens(top, absnames):
genlist = []
for g in top:
if isinstance(g, _UserCode):
tree = g
elif isinstance(g, (_AlwaysComb, _AlwaysSeq, _Always)):
f = g.func
tree = g.ast
tree.symdict = f.__globals__.copy()
tree.callstack = []
# handle free variables
tree.nonlocaldict = {}
if f.__code__.co_freevars:
for n, c in zip(f.__code__.co_freevars, f.__closure__):
obj = c.cell_contents
tree.symdict[n] = obj
# currently, only intbv as automatic nonlocals (until Python 3.0)
if isinstance(obj, intbv):
tree.nonlocaldict[n] = obj
tree.name = absnames.get(id(g), str(_Label("BLOCK"))).upper()
v = _AttrRefTransformer(tree)
v.visit(tree)
v = _FirstPassVisitor(tree)
v.visit(tree)
if isinstance(g, _AlwaysComb):
v = _AnalyzeAlwaysCombVisitor(tree, g.senslist)
elif isinstance(g, _AlwaysSeq):
v = _AnalyzeAlwaysSeqVisitor(tree, g.senslist, g.reset, g.sigregs, g.varregs)
else:
v = _AnalyzeAlwaysDecoVisitor(tree, g.senslist)
v.visit(tree)
else: # @instance
f = g.gen.gi_frame
tree = g.ast
tree.symdict = f.f_globals.copy()
tree.symdict.update(f.f_locals)
tree.nonlocaldict = {}
tree.callstack = []
tree.name = absnames.get(id(g), str(_Label("BLOCK"))).upper()
v = _AttrRefTransformer(tree)
v.visit(tree)
v = _FirstPassVisitor(tree)
v.visit(tree)
v = _AnalyzeBlockVisitor(tree)
v.visit(tree)
genlist.append(tree)
return genlist
# handle free variables
if func.func_code.co_freevars:
for n, c in zip(func.func_code.co_freevars, func.func_closure):
try:
obj = _cell_deref(c)
symdict[n] = obj
except NameError:
raise NameError(n)
self.symdict = symdict
# now infer outputs to be reset
s = inspect.getsource(func)
s = _dedent(s)
tree = ast.parse(s)
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
sigregs = self.sigregs = []
varregs = self.varregs = []
for n in v.outputs:
reg = self.symdict[n]
if isinstance(reg, _Signal):
sigregs.append(reg)
elif isinstance(reg, intbv):
varregs.append((n, reg, int(reg)))
else:
assert _isListOfSigs(reg)
for e in reg:
sigregs.append(e)
# handle free variables
if func.__code__.co_freevars:
for n, c in zip(func.__code__.co_freevars, func.__closure__):
try:
obj = _cell_deref(c)
symdict[n] = obj
except NameError:
raise NameError(n)
self.symdict = symdict
# now infer outputs to be reset
s = inspect.getsource(func)
s = _dedent(s)
tree = ast.parse(s)
# print ast.dump(tree)
v = _AttrRefTransformer(self)
v.visit(tree)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
if v.results['inout']:
raise AlwaysSeqError(_error.SigAugAssign, v.results['inout'])
if v.results['embedded_func']:
raise AlwaysSeqError(_error.EmbeddedFunction)
sigregs = self.sigregs = []
varregs = self.varregs = []
for n in v.results['output']:
reg = self.symdict[n]
if isinstance(reg, _Signal):
def _analyzeGens(top, absnames):
genlist = []
for g in top:
if isinstance(g, _UserCode):
tree = g
elif isinstance(g, (_AlwaysComb, _AlwaysSeq, _Always)):
f = g.func
s = inspect.getsource(f)
s = _dedent(s)
tree = ast.parse(s)
#print ast.dump(tree)
tree.sourcefile = inspect.getsourcefile(f)
tree.lineoffset = inspect.getsourcelines(f)[1]-1
tree.symdict = f.func_globals.copy()
tree.callstack = []
# handle free variables
tree.nonlocaldict = {}
if f.func_code.co_freevars:
for n, c in zip(f.func_code.co_freevars, f.func_closure):
obj = _cell_deref(c)
tree.symdict[n] = obj
# currently, only intbv as automatic nonlocals (until Python 3.0)
if isinstance(obj, intbv):
tree.nonlocaldict[n] = obj
tree.name = absnames.get(id(g), str(_Label("BLOCK"))).upper()
v = _AttrRefTransformer(tree)
v.visit(tree)
v = _FirstPassVisitor(tree)
v.visit(tree)
if isinstance(g, _AlwaysComb):
objs = [tree.symdict[objname] for objname in tree.objlist]
for obj in objs:
if not ( isinstance(obj, (int, long, EnumType,_Signal)) or \
_isMem(obj) or _isTupleOfInts(obj)
):
info = "File %s, line %s: " % (tree.sourcefile, tree.lineoffset)
print type(obj)
raise ConversionError(_error.UnsupportedType, n, info)
v = _AnalyzeAlwaysCombVisitor(tree, g.senslist)
elif isinstance(g, _AlwaysSeq):
v = _AnalyzeAlwaysSeqVisitor(tree, g.senslist, g.reset, g.sigregs, g.varregs)
else:
v = _AnalyzeAlwaysDecoVisitor(tree, g.senslist)
v.visit(tree)
else: # @instance
f = g.gen.gi_frame
s = inspect.getsource(f)
s = _dedent(s)
tree = ast.parse(s)
# print ast.dump(tree)
tree.sourcefile = inspect.getsourcefile(f)
tree.lineoffset = inspect.getsourcelines(f)[1]-1
tree.symdict = f.f_globals.copy()
tree.symdict.update(f.f_locals)
tree.nonlocaldict = {}
tree.callstack = []
tree.name = absnames.get(id(g), str(_Label("BLOCK"))).upper()
v = _AttrRefTransformer(tree)
v.visit(tree)
v = _FirstPassVisitor(tree)
v.visit(tree)
v = _AnalyzeBlockVisitor(tree)
v.visit(tree)
genlist.append(tree)
return genlist
def __init__(self, func):
def senslistexpand(senslist, reg):
# print(repr(reg))
if isinstance(reg, _Signal):
senslist.append(reg)
elif isinstance(reg, StructType):
# print('senslistexpand StructType', repr(reg))
refs = vars(reg)
# print(refs)
for k in refs:
# print(refs[k])
if isinstance(refs[k], _Signal):
senslist.append(refs[k])
elif isinstance(refs[k], (list, Array)):
if len(refs[k]) != 0:
senslistexpand(senslist, refs[k])
elif isinstance(refs[k], StructType):
senslistexpand(senslist, refs[k])
else:
# print('senslistexpand passing {}?'.format(k))
pass
elif isinstance(reg, (list, Array)):
if isinstance(reg[0], (list, Array)):
for r in reg:
senslistexpand(senslist, r)
else:
if isinstance(reg[0], StructType):
for rr in reg:
senslistexpand(senslist, rr)
elif isinstance(reg[0], _Signal):
senslist.extend(reg)
# elif isinstance(reg, Array):
# senslist.extend(reg._array)
# elif isinstance(reg, list):
# senslist.extend(reg)
# self.func = func
# self.symdict = symdict
senslist = []
super(_AlwaysComb, self).__init__(func, senslist)
# print('_AlwaysComb', senslist)
s = inspect.getsource(func)
s = _dedent(s)
tree = ast.parse(s)
# print(ast.dump(tree))
# for item in ast.dump(tree).split():
# print(item)
v = _AttrRefTransformer(self)
v.visit(tree)
# print(ast.dump(tree))
# for item in ast.dump(tree).split():
# print(item)
v = _SigNameVisitor(self.symdict)
v.visit(tree)
# print(ast.dump(tree))
# for item in ast.dump(tree).split():
# print(item)
self.inputs = v.results['input']
self.outputs = v.results['output']
# print(v.results)
# print('inputs:', self.inputs)
# print('outputs:', self.outputs)
# inouts = v.results['inout'] | self.inputs.intersection(self.outputs)
# if inouts:
# raise AlwaysCombError(_error.SignalAsInout % inouts)
if v.results['embedded_func']:
raise AlwaysCombError(_error.EmbeddedFunction)
# print(self.inputs)
# print('2', self.senslist)
for n in self.inputs:
s = self.symdict[n]
# print(n,s)
# print(n, s, isinstance(s, StructType), isinstance(s, (list, Array)))
senslistexpand(senslist, s)
# if isinstance(s, _Signal):
# senslist.append(s)
# elif isinstance(s, list):
# # print(repr(s))
# # list or Array of sigs
# senslistexpand(senslist, s)
# elif isinstance(s, Array):
# # Array of sigs
# if not isinstance(s.element, intbv):
# senslistexpand(senslist, s)
# elif isinstance(s, StructType):
# senslistexpand(senslist, s)
# elif _isListOfSigs(s):
# senslist.extend(s)
# else :
# # print('_always_comb', n)
# pass
# print('3', self.senslist)
self.senslist = tuple(senslist)
# print('4', self.senslist)
self.gen = self.genfunc()
# for item in self.senslist:
# print(item._name, repr(item))
# print()
if len(self.senslist) == 0:
raise AlwaysCombError(_error.EmptySensitivityList)
