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diff --git a/boards/lh53.c b/boards/lh53.c
new file mode 100644
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--- /dev/null
+++ b/boards/lh53.c
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+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2007 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, IRQa;
+static int32 IRQCount;
+static uint8 *WRAM=NULL;
+static uint32 WRAMSIZE;
+
+static SFORMAT StateRegs[]=
+{
+  {&reg, 1, "REG"},
+  {&IRQa, 1, "IRQA"},
+  {&IRQCount, 4, "IRQC"},
+  {0}
+};
+
+static void Sync(void)
+{
+  setchr8(0);
+  setprg8(0x6000,reg);
+  setprg8(0x8000,0xc);
+  setprg4(0xa000,(0xd<<1));
+  setprg2(0xb000,(0xd<<2)+2);
+  setprg2r(0x10,0xb800,4);
+  setprg2r(0x10,0xc000,5);
+  setprg2r(0x10,0xc800,6);
+  setprg2r(0x10,0xd000,7);
+  setprg2(0xd800,(0xe<<2)+3);
+  setprg8(0xe000,0xf);
+}
+
+static DECLFW(LH53RamWrite)
+{
+  WRAM[(A-0xB800)&0x1FFF]=V;
+}
+
+static DECLFW(LH53Write)
+{
+  reg=V;
+  Sync();
+}
+
+static DECLFW(LH53IRQaWrite)
+{
+  IRQa = V&2;
+  IRQCount = 0;
+  if(!IRQa)
+    X6502_IRQEnd(FCEU_IQEXT);
+}
+
+static void FP_FASTAPASS(1) LH53IRQ(int a)
+{
+  if(IRQa)
+  {
+    IRQCount+=a;
+    if(IRQCount>7560)
+      X6502_IRQBegin(FCEU_IQEXT);
+  }
+}
+
+static void LH53Power(void)
+{
+  Sync();
+  SetReadHandler(0x6000,0xFFFF,CartBR);
+  SetWriteHandler(0xB800,0xD7FF,LH53RamWrite);
+  SetWriteHandler(0xE000,0xEFFF,LH53IRQaWrite);
+  SetWriteHandler(0xF000,0xFFFF,LH53Write);
+}
+
+static void LH53Close(void)
+{
+  if(WRAM)
+    FCEU_gfree(WRAM);
+  WRAM=NULL;
+}
+
+static void StateRestore(int version)
+{
+  Sync();
+}
+
+void LH53_Init(CartInfo *info)
+{
+  info->Power=LH53Power;
+  info->Close=LH53Close;
+  MapIRQHook=LH53IRQ;
+  GameStateRestore=StateRestore;
+
+  WRAMSIZE=8192;
+  WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);
+  SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);
+  AddExState(WRAM, WRAMSIZE, 0, "WRAM");
+
+  AddExState(&StateRegs, ~0, 0, 0);
+}