def _generate_ios(f, ios, ns):
outs = list_special_ios(f, False, True, False)
inouts = list_special_ios(f, False, False, True)
r = []
for io in ios:
direction = "OUTPUT" if io in outs else "INOUT" if io in inouts else "INPUT"
r.append(_Port(name=ns.get_name(io), direction=direction))
return r
def _generate_ios(f, ios, ns): outs = list_special_ios(f, False, True, False) inouts = list_special_ios(f, False, False, True) r = [] for io in ios: direction = "OUTPUT" if io in outs else "INOUT" if io in inouts else "INPUT" r.append(_Port(name=ns.get_name(io), direction=direction)) return r
def add_iobufs(f, ios):
for tri in f.specials:
if isinstance(tri, Tristate):
f.specials.add(Instance("IOBUF", i_I=tri.o, i_T=~tri.oe, o_O=tri.i, io_IO=tri.target))
f.specials.remove(tri)
outs = ios & (list_targets(f) | list_special_ios(f, False, True, False))
inouts = ios & (list_special_ios(f, False, False, True))
ins = ios - outs - inouts
bufferedios, iobufs = _build_iobufs(ins, outs)
_replace_iosigs(f, bufferedios)
f.specials.update(iobufs)
def lower_processes(f, ios): # gets called after synthesize_fd, so sync is already empty sd = OrderedDict() sped = list_special_ios(f, False, True, True) for s in list_signals(f): if s not in sped: sd[s] = s.reset _build_conditional_expr(None, f.comb, sd) for s in ios: if s in sd and sd[s] == s.reset: del sd[s] f.comb = [k.eq(v) for k, v in sd.items()]
def convert(f, ios, cell_library, vendor, device, name="top", return_ns=False):
if not isinstance(f, _Fragment):
f = f.get_fragment()
if f.comb != [] or f.sync != {}:
raise ValueError("Edif conversion can only handle synthesized fragments")
if ios is None:
ios = set()
cells = _generate_cells(f)
ns = build_namespace(list_special_ios(f, True, True, True))
instances = _generate_instances(f, ns)
inouts = _generate_ios(f, ios, ns)
connections = _generate_connections(f, ios, ns)
r = _write_edif(cells, inouts, instances, connections, cell_library, name, device, vendor)
if return_ns:
return r, ns
else:
return r
def convert(f, ios, cell_library, vendor, device, name="top"):
if not isinstance(f, _Fragment):
f = f.get_fragment()
if f.comb != [] or f.sync != {}:
raise ValueError("EDIF conversion can only handle synthesized fragments")
if ios is None:
ios = set()
cells = _generate_cells(f)
ns = build_namespace(list_special_ios(f, True, True, True))
instances = _generate_instances(f, ns)
inouts = _generate_ios(f, ios, ns)
connections = _generate_connections(f, ios, ns)
src = _write_edif(cells, inouts, instances, connections, cell_library, name, device, vendor)
r = ConvOutput()
r.set_main_source(src)
r.ns = ns
return r
def convert(f, ios, cell_library, vendor, device, name="top", return_ns=False):
if not isinstance(f, _Fragment):
f = f.get_fragment()
if f.comb != [] or f.sync != {}:
raise ValueError(
"Edif conversion can only handle synthesized fragments")
if ios is None:
ios = set()
cells = _generate_cells(f)
ns = build_namespace(list_special_ios(f, True, True, True))
instances = _generate_instances(f, ns)
inouts = _generate_ios(f, ios, ns)
connections = _generate_connections(f, ios, ns)
r = _write_edif(cells, inouts, instances, connections, cell_library, name,
device, vendor)
if return_ns:
return r, ns
else:
return r
def convert(f, ios, cell_library, vendor, device, name="top"):
if not isinstance(f, _Fragment):
f = f.get_fragment()
if f.comb != [] or f.sync != {}:
raise ValueError(
"EDIF conversion can only handle synthesized fragments")
if ios is None:
ios = set()
cells = _generate_cells(f)
ns = build_namespace(list_special_ios(f, True, True, True))
instances = _generate_instances(f, ns)
inouts = _generate_ios(f, ios, ns)
connections = _generate_connections(f, ios, ns)
src = _write_edif(cells, inouts, instances, connections, cell_library,
name, device, vendor)
r = ConvOutput()
r.set_main_source(src)
r.ns = ns
return r
