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ast, back.pysim: allow specifying user-defined decoders for signals.

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whitequark 2018-12-14 09:02:29 +00:00
parent bb843cb40c
commit b58715c5dc
3 changed files with 25 additions and 9 deletions
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7
nmigen/compat/genlib/fsm.py
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@ -156,10 +156,9 @@ class FSM(CompatModule):
self.encoding = dict((s, n) for n, s in enumerate(self.actions.keys()))
self.decoding = {n: s for s, n in self.encoding.items()}
self.state = Signal(max=nstates, reset=self.encoding[self.reset_state])
self.state._enumeration = self.decoding
self.next_state = Signal(max=nstates)
self.next_state._enumeration = {n: "{}:{}".format(n, s) for n, s in self.decoding.items()}
decoder = lambda n: "{}/{}".format(self.decoding[n], n)
self.state = Signal(max=nstates, reset=self.encoding[self.reset_state], decoder=decoder)
self.next_state = Signal.like(self.state)
for state, signal in self.before_leaving_signals.items():
encoded = self.encoding[state]