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diff --git a/boards/KS7031.c b/boards/KS7031.c
new file mode 100644
index 0000000..e2b8769
--- /dev/null
+++ b/boards/KS7031.c
@@ -0,0 +1,85 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2012 CaH4e3
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * FDS Conversion
+ *
+ */
+
+#include "mapinc.h"
+
+static uint8 reg[4];
+
+static SFORMAT StateRegs[]=
+{
+  {reg, 4, "REGS"},
+  {0}
+};
+
+static void Sync(void)
+{
+  setprg2(0x6000,reg[0]);
+  setprg2(0x6800,reg[1]);
+  setprg2(0x7000,reg[2]);
+  setprg2(0x7800,reg[3]);
+
+  setprg2(0x8000,15);
+  setprg2(0x8800,14);
+  setprg2(0x9000,13);
+  setprg2(0x9800,12);
+  setprg2(0xa000,11);
+  setprg2(0xa800,10);
+  setprg2(0xb000,9);
+  setprg2(0xb800,8);
+
+  setprg2(0xc000,7);
+  setprg2(0xc800,6);
+  setprg2(0xd000,5);
+  setprg2(0xd800,4);
+  setprg2(0xe000,3);
+  setprg2(0xe800,2);
+  setprg2(0xf000,1);
+  setprg2(0xf800,0);
+
+  setchr8(0);
+}
+
+static DECLFW(UNLKS7031Write)
+{
+  reg[(A >> 11) & 3] = V;
+  Sync();
+}
+
+static void UNLKS7031Power(void)
+{
+  Sync();
+  SetReadHandler(0x6000,0xFFFF,CartBR);
+  SetWriteHandler(0x8000,0xffff,UNLKS7031Write);
+}
+
+static void StateRestore(int version)
+{
+  Sync();
+}
+
+void UNLKS7031_Init(CartInfo *info)
+{
+  info->Power=UNLKS7031Power;
+  GameStateRestore=StateRestore;
+  AddExState(&StateRegs, ~0, 0, 0);
+}