From df1b2a99ce9273cac426b8250a2313da5d6f0690 Mon Sep 17 00:00:00 2001
From: Christian Speckner <christian.speckner@mayflower.de>
Date: Mon, 9 Jan 2017 00:10:26 +0100
Subject: [PATCH] Fix invalid access in FrameManager.

---
 src/emucore/tia/FrameManager.cxx | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/emucore/tia/FrameManager.cxx b/src/emucore/tia/FrameManager.cxx
index 5af3a82ab..69599bcbf 100644
--- a/src/emucore/tia/FrameManager.cxx
+++ b/src/emucore/tia/FrameManager.cxx
@@ -45,6 +45,7 @@ static constexpr uInt32
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 FrameManager::FrameManager()
   : myMode(TvMode::pal),
+    myVblankMode(VblankMode::floating),
     myYstart(0)
 {
   setTvMode(TvMode::ntsc);
@@ -79,7 +80,7 @@ void FrameManager::reset()
   myStableVblankFrames = 0;
   myVblankViolated = false;
 
-  if (myVblankMode == VblankMode::locked) myVblankMode = VblankMode::floating;
+  if (myVblankMode != VblankMode::fixed) myVblankMode = VblankMode::floating;
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -