From 48f87ffa5489771f823e19a04e4c0b18dc0aec2b Mon Sep 17 00:00:00 2001
From: thrust26 <tjentzsch@yahoo.de>
Date: Wed, 25 Mar 2020 12:00:41 +0100
Subject: [PATCH] fixes #595 (debugger BK color)

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

diff --git a/src/emucore/tia/TIA.cxx b/src/emucore/tia/TIA.cxx
index 60608b765..38beebbcf 100644
--- a/src/emucore/tia/TIA.cxx
+++ b/src/emucore/tia/TIA.cxx
@@ -568,7 +568,8 @@ bool TIA::poke(uInt16 address, uInt8 value)
       break;
 
     case COLUBK:
-      myBackground.setColor(value & 0xFE);
+      value &= 0xFE;
+      myBackground.setColor(value);
       myShadowRegisters[address] = value;
       break;