diff --git a/migen/corelogic/timeline.py b/migen/corelogic/timeline.py
index bae4f722b..1515c6ec1 100644
--- a/migen/corelogic/timeline.py
+++ b/migen/corelogic/timeline.py
@@ -4,7 +4,7 @@ class Inst:
 	def __init__(self, trigger, events):
 		self.trigger = trigger
 		self.events = events
-		self.lastevent = max([e[0] for e in events] + [e[2] for e in events if len(e) == 3])
+		self.lastevent = max([e[0] for e in events])
 		f.Declare(self, "_counter", f.BV(f.BitsFor(self.lastevent)))
 	
 	def GetFragment(self):
@@ -18,16 +18,10 @@ class Inst:
 				[f.Assign(self._counter, f.Constant(0, self._counter.bv))],
 				[counterlogic])
 		def getcond(e):
-			if len(e) == 3:
-				if e[0] == 0:
-					return self.trigger & (self._counter <= f.Constant(e[2], self._counter.bv))
-				else:
-					return (self._counter >= f.Constant(e[0], self._counter.bv)) & (self._counter <= f.Constant(e[2], self._counter.bv))
+			if e[0] == 0:
+				return self.trigger & (self._counter == f.Constant(0, self._counter.bv))
 			else:
-				if e[0] == 0:
-					return self.trigger
-				else:
-					return self._counter == f.Constant(e[0], self._counter.bv)
+				return self._counter == f.Constant(e[0], self._counter.bv)
 		sync = [f.If(getcond(e), e[1]) for e in self.events]
 		sync.append(counterlogic)
 		return f.Fragment(sync=sync)