46 lines
1004 B
Python
46 lines
1004 B
Python
from migen.fhdl.structure import *
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from migen.flow.actor import *
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from migen.sim.generic import PureSimulable
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class EndpointSimHook(PureSimulable):
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def __init__(self, endpoint):
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self.endpoint = endpoint
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def on_ack(self):
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pass
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def on_nack(self):
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pass
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def on_inactive(self):
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pass
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def do_simulation(self, s):
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if s.rd(self.endpoint.stb):
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if s.rd(self.endpoint.ack):
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self.on_ack()
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else:
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self.on_nack()
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else:
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self.on_inactive()
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class DFGHook:
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def __init__(self, dfg, create):
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assert(not dfg.is_abstract())
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self.nodepair_to_ep = dict()
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for u, v, data in dfg.edges_iter(data=True):
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if (u, v) in self.nodepair_to_ep:
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ep_to_hook = self.nodepair_to_ep[(u, v)]
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else:
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ep_to_hook = dict()
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self.nodepair_to_ep[(u, v)] = ep_to_hook
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ep = data["source"]
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ep_to_hook[ep] = create(u, ep, v)
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def get_fragment(self):
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frag = Fragment()
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for v1 in self.nodepair_to_ep.values():
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for v2 in v1.values():
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frag += v2.get_fragment()
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return frag
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