mappers updated to 0.98.16

[fceu.git] / boards / bmc64in1nr.c

diff --git a/boards/bmc64in1nr.c b/boards/bmc64in1nr.c
new file mode 100644 (file)
index 0000000..af663ba
--- /dev/null
+++ b/boards/bmc64in1nr.c
@@ -0,0 +1,93 @@
+/* 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 regs[4];
+
+static SFORMAT StateRegs[]=
+{
+  {regs, 4, "REGS"},
+  {0}
+};
+
+static void Sync(void)
+{
+  if(regs[0]&0x80)
+  {
+    if(regs[1]&0x80)
+      setprg32(0x8000,regs[1]&0x1F);
+    else
+    {
+      int bank=((regs[1]&0x1f)<<1)|((regs[1]>>6)&1);
+      setprg16(0x8000,bank);
+      setprg16(0xC000,bank);
+    }
+  }
+  else
+  {
+    int bank=((regs[1]&0x1f)<<1)|((regs[1]>>6)&1);
+    setprg16(0xC000,bank);
+  }
+  if(regs[0]&0x20)
+    setmirror(MI_H);
+  else
+    setmirror(MI_V);
+  setchr8((regs[2]<<2)|((regs[0]>>1)&3));
+}
+
+static DECLFW(BMC64in1nrWriteLo)
+{
+  regs[A&3]=V;
+  Sync();
+}
+
+static DECLFW(BMC64in1nrWriteHi)
+{
+  regs[3]=V;
+  Sync();
+}
+
+static void BMC64in1nrPower(void)
+{
+  regs[0]=0x80;
+  regs[1]=0x43;
+  regs[2]=regs[3]=0;
+  Sync();
+  SetWriteHandler(0x5000,0x5003,BMC64in1nrWriteLo);
+  SetWriteHandler(0x8000,0xFFFF,BMC64in1nrWriteHi);
+  SetReadHandler(0x8000,0xFFFF,CartBR);
+}
+
+static void StateRestore(int version)
+{
+  Sync();
+}
+
+void BMC64in1nr_Init(CartInfo *info)
+{
+  info->Power=BMC64in1nrPower;
+  AddExState(&StateRegs, ~0, 0, 0);
+  GameStateRestore=StateRestore;
+}
+
+