From: whitequark <whitequark@whitequark.org>
Date: Fri, 14 Dec 2018 16:21:53 +0000 (+0000)
Subject: pysim.back: fix add_sync_process wrapper to handle signals correctly.
X-Git-Tag: working~251
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=88970ee29fb1bef8800ceff9f2f6f5d0c058d610;p=nmigen.git

pysim.back: fix add_sync_process wrapper to handle signals correctly.
---

diff --git a/nmigen/back/pysim.py b/nmigen/back/pysim.py
index ba32dbf..f0bfba1 100644
--- a/nmigen/back/pysim.py
+++ b/nmigen/back/pysim.py
@@ -243,7 +243,9 @@ class Simulator:
             try:
                 result = process.send(None)
                 while True:
-                    result = process.send((yield (result or Tick(domain))))
+                    if result is None:
+                        result = Tick(domain)
+                    result = process.send((yield result))
             except StopIteration:
                 pass
         self.add_process(sync_process())