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diff --git a/boards/bmc13in1jy110.c b/boards/bmc13in1jy110.c
new file mode 100644
index 0000000..6f11f8a
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+++ b/boards/bmc13in1jy110.c
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+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2005 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
+ *
+ * BMC 42-in-1 reset switch
+ */
+
+#include "mapinc.h"
+
+static uint8 bank_mode;
+static uint8 bank_value;
+static uint8 prgb[4];
+static SFORMAT StateRegs[]=
+{
+  {0}
+};
+
+static void Sync(void)
+{
+  FCEU_printf("%02x: %02x %02x\n", bank_mode, bank_value, prgb[0]);  
+  switch(bank_mode&7)
+  {
+    case 0:
+         setprg32(0x8000,bank_value&7); break;
+    case 1:
+         setprg16(0x8000,((8+(bank_value&7))>>1)+prgb[1]);
+         setprg16(0xC000,(bank_value&7)>>1);
+    case 4:
+         setprg32(0x8000,8+(bank_value&7)); break;
+    case 5:
+         setprg16(0x8000,((8+(bank_value&7))>>1)+prgb[1]);
+         setprg16(0xC000,((8+(bank_value&7))>>1)+prgb[3]);
+    case 2:
+         setprg8(0x8000,prgb[0]>>2);
+         setprg8(0xa000,prgb[1]);
+         setprg8(0xc000,prgb[2]);
+         setprg8(0xe000,~0);
+         break;
+    case 3:
+         setprg8(0x8000,prgb[0]);
+         setprg8(0xa000,prgb[1]);
+         setprg8(0xc000,prgb[2]);
+         setprg8(0xe000,prgb[3]);
+         break;
+  }
+}
+
+static DECLFW(BMC13in1JY110Write)
+{
+  FCEU_printf("%04x:%04x\n",A,V);
+  switch(A)
+  {
+    case 0x8000:
+    case 0x8001:
+    case 0x8002:
+    case 0x8003: prgb[A&3]=V; break;
+    case 0xD000: bank_mode=V; break;
+    case 0xD001: setmirror(V&3);
+    case 0xD002: break;
+    case 0xD003: bank_value=V; break;
+  }
+  Sync();
+}
+
+static void BMC13in1JY110Power(void)
+{
+  prgb[0]=prgb[1]=prgb[2]=prgb[3]=0;
+  bank_mode=0;
+  bank_value=0;
+  setprg32(0x8000,0);
+  setchr8(0);
+  SetWriteHandler(0x8000,0xFFFF,BMC13in1JY110Write);
+  SetReadHandler(0x8000,0xFFFF,CartBR);
+}
+
+static void StateRestore(int version)
+{
+  Sync();
+}
+
+void BMC13in1JY110_Init(CartInfo *info)
+{
+  info->Power=BMC13in1JY110Power;
+  AddExState(&StateRegs, ~0, 0, 0);
+  GameStateRestore=StateRestore;
+}
+
+