def setup_reset(m, reset, *statement, **kwargs):
period = kwargs['period'] if 'period' in kwargs else 100
positive = kwargs['positive'] if 'positive' in kwargs else True
ret = m.Initial(
reset(not positive),
statement,
vtypes.Delay(period),
reset(positive),
vtypes.Delay(period),
reset(not positive),
)
# for verilator
if not hasattr(m, 'verilator_reset'):
m.verilator_reset = collections.OrderedDict()
m.verilator_reset[reset] = (period, positive)
if not hasattr(m, 'verilator_reset_statements'):
m.verilator_reset_statements = collections.OrderedDict()
if reset not in m.verilator_reset_statements:
m.verilator_reset_statements[reset] = []
m.verilator_reset_statements[reset].extend(statement)
return ret
def setup_reset(m, reset, *statement, **kwargs):
period = kwargs['period'] if 'period' in kwargs else 100
ret = m.Initial(
reset(0),
statement,
vtypes.Delay(100),
reset(1),
vtypes.Delay(100),
reset(0),
)
return ret
def visit_DelayStatement(self, node):
value = self.visit(node.delay)
delay = vtypes.Delay(value)
return delay
def next_clock(clk):
return (vtypes.Event(vtypes.Posedge(clk)), vtypes.Delay(1))
