From: Sebastien Bourdeauducq <sebastien@milkymist.org>
Date: Fri, 14 Dec 2012 22:56:03 +0000 (+0100)
Subject: actorlib/sim/SimActor: do not drive busy low when generator yields None
X-Git-Tag: 24jan2021_ls180~2099^2~715
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1f350adf14c7f1b371a9a2930ad5b61fc6472650;p=litex.git

actorlib/sim/SimActor: do not drive busy low when generator yields None
---

diff --git a/migen/actorlib/sim.py b/migen/actorlib/sim.py
index 67f8689e..d99b909d 100644
--- a/migen/actorlib/sim.py
+++ b/migen/actorlib/sim.py
@@ -60,7 +60,7 @@ class TokenExchanger(PureSimulable):
 			self.active = set()
 		else:
 			raise TypeError
-		if all(transaction.idle_wait for transaction in self.active):
+		if self.active and all(transaction.idle_wait for transaction in self.active):
 			self.busy = False
 	
 	def do_simulation(self, s):