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diff --git a/boards/addrlatch.c b/boards/addrlatch.c
new file mode 100644
index 0000000..4b70d6e
--- /dev/null
+++ b/boards/addrlatch.c
@@ -0,0 +1,172 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "mapinc.h"
+
+static uint16 latche, latcheinit;
+static uint16 addrreg0, addrreg1;
+static void(*WSync)(void);
+static readfunc defread;
+
+static DECLFW(LatchWrite)
+{
+  FCEU_printf("%04x:%02x\n",A,V);
+  latche=A;
+  WSync();
+}
+
+static void LatchReset(void)
+{
+  latche=latcheinit;
+  WSync();
+}
+
+static void LatchPower(void)
+{
+  latche=latcheinit;
+  WSync();
+  SetReadHandler(0x8000,0xFFFF,defread);
+  SetWriteHandler(addrreg0,addrreg1,LatchWrite);
+}
+
+static void StateRestore(int version)
+{
+  WSync();
+}
+
+static void Latch_Init(CartInfo *info, void (*proc)(void), readfunc func, uint16 init, uint16 adr0, uint16 adr1)
+{
+  latcheinit=init;
+  addrreg0=adr0;
+  addrreg1=adr1;
+  WSync=proc;
+  if(func)
+    defread=func;
+  else
+    defread=CartBR;
+  info->Power=LatchPower;
+  info->Reset=LatchReset;
+  GameStateRestore=StateRestore;
+  AddExState(&latche, 2, 0, "LATC");
+}
+
+//------------------ UNLCC21 ---------------------------
+
+static void UNLCC21Sync(void)
+{
+  setprg32(0x8000,0);
+  setchr8(latche&1);
+  setmirror(MI_0+((latche&2)>>1));
+}
+
+void UNLCC21_Init(CartInfo *info)
+{ 
+  Latch_Init(info, UNLCC21Sync, 0, 0, 0x8000, 0xFFFF);
+}
+
+//------------------ BMCD1038 ---------------------------
+
+static uint8 dipswitch;
+static void BMCD1038Sync(void)
+{
+  if(latche&0x80)
+  {
+    setprg16(0x8000,(latche&0x70)>>4);
+    setprg16(0xC000,(latche&0x70)>>4);
+  }
+  else
+    setprg32(0x8000,(latche&0x60)>>5);
+  setchr8(latche&7);
+  setmirror(((latche&8)>>3)^1);
+}
+
+static DECLFR(BMCD1038Read)
+{
+  if(latche&0x100)
+    return dipswitch;
+  else
+    return CartBR(A);
+}
+
+static void BMCD1038Reset(void)
+{
+  dipswitch++;
+  dipswitch&=3; 
+}
+
+void BMCD1038_Init(CartInfo *info)
+{ 
+  Latch_Init(info, BMCD1038Sync, BMCD1038Read, 0, 0x8000, 0xFFFF);
+  info->Reset=BMCD1038Reset;
+  AddExState(&dipswitch, 1, 0, "DIPSW");
+}
+
+
+//------------------ Map 058 ---------------------------
+
+static void BMCGK192Sync(void)
+{
+  if(latche&0x40)
+  {
+    setprg16(0x8000,latche&7);
+    setprg16(0xC000,latche&7);
+  }
+  else
+    setprg32(0x8000,(latche>>1)&3);
+  setchr8((latche>>3)&7);
+  setmirror(((latche&0x80)>>7)^1);
+}
+
+void BMCGK192_Init(CartInfo *info)
+{
+  Latch_Init(info, BMCGK192Sync, 0, 0, 0x8000, 0xFFFF);
+}
+
+//------------------ Map 200 ---------------------------
+
+static void M200Sync(void)
+{
+//  FCEU_printf("A\n");
+  setprg16(0x8000,latche&7);
+  setprg16(0xC000,latche&7);
+  setchr8(latche&7);
+  setmirror((latche&8)>>3);
+}
+
+void Mapper200_Init(CartInfo *info)
+{ 
+  Latch_Init(info, M200Sync, 0, 0xff, 0x8000, 0xFFFF);
+}
+
+//------------------ 190in1 ---------------------------
+
+static void BMC190in1Sync(void)
+{
+  setprg16(0x8000,(latche>>2)&0x07);
+  setprg16(0xC000,(latche>>2)&0x07);
+  setchr8((latche>>2)&0x07);
+  setmirror((latche&1)^1);
+}
+
+void BMC190in1_Init(CartInfo *info)
+{ 
+  Latch_Init(info, BMC190in1Sync, 0, 0, 0x8000, 0xFFFF);
+}
+