From: Nina Engelhardt <nina.engelhardt@omnium-gatherum.de>
Date: Sun, 11 Aug 2013 21:11:30 +0000 (+0200)
Subject: add += operator to fragment
X-Git-Tag: 24jan2021_ls180~2099^2~475
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e12187aa807a724f5ba60ff5bf4ad4b32170cc15;p=litex.git

add += operator to fragment
---

diff --git a/migen/fhdl/structure.py b/migen/fhdl/structure.py
index 2be1a640..9ef2cb32 100644
--- a/migen/fhdl/structure.py
+++ b/migen/fhdl/structure.py
@@ -275,3 +275,16 @@ class _Fragment:
 			self.specials | other.specials,
 			self.clock_domains + other.clock_domains,
 			self.sim + other.sim)
+
+	def __iadd__(self, other):
+		newsync = defaultdict(list)
+		for k, v in self.sync.items():
+			newsync[k] = v[:]
+		for k, v in other.sync.items():
+			newsync[k].extend(v)
+		self.comb += other.comb
+		self.sync = newsync
+		self.specials |= other.specials
+		self.clock_domains += other.clock_domains
+		self.sim += other.sim
+		return self