From 4f94d97e676fd5d4ae1db5a6334a984b6227439a Mon Sep 17 00:00:00 2001
From: cancel <cancel@cancel.fm>
Date: Sat, 1 Dec 2018 18:43:00 +0900
Subject: [PATCH] Fix uturn normal phase logic

---
 sim.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sim.c b/sim.c
index e51bbae..f5354f2 100644
--- a/sim.c
+++ b/sim.c
@@ -745,6 +745,9 @@ BEGIN_DUAL_PHASE_0(uturn)
   END_PORTS
 END_PHASE
 BEGIN_DUAL_PHASE_1(uturn)
+  REALIZE_DUAL;
+  if (!DUAL_IS_ACTIVE)
+    return;
 #define X(_d_y, _d_x, _d_glyph)                                                \
   {                                                                            \
     Glyph g = PEEK(_d_y, _d_x);                                                \