mappers updated to 0.98.16

[fceu.git] / boards / bmc42in1r.c

diff --git a/boards/bmc42in1r.c b/boards/bmc42in1r.c
new file mode 100644 (file)
index 0000000..8084847
--- /dev/null
+++ b/boards/bmc42in1r.c
@@ -0,0 +1,87 @@
+/* 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 hrd_sw;
+static uint8 latche;
+static SFORMAT StateRegs[]=
+{
+  {&latche, 1, "LATCHE"},
+  {&hrd_sw, 1, "HRDSW"},
+  {0}
+};
+
+static void Sync(void)
+{
+  if(!(latche&0x20))
+    setprg32r(hrd_sw,0x8000,(latche>>1)&0x0f);
+  else
+  {
+    setprg16r(hrd_sw,0x8000,latche&0x1f);
+    setprg16r(hrd_sw,0xC000,latche&0x1f);
+  }
+  switch((latche>>6)&3)
+  {
+    case 0: setmirrorw(0,0,0,1); break;
+    case 1: setmirror(MI_V); break;
+    case 2: setmirror(MI_H); break;
+    case 3: setmirror(MI_1); break;
+  }
+}
+
+static DECLFW(BMC42in1rWrite)
+{
+  latche=V;
+  Sync();
+}
+
+static void BMC42in1rReset(void)
+{
+  hrd_sw^=1;
+  Sync();
+}
+
+static void BMC42in1rPower(void)
+{
+  latche=0x00;
+  hrd_sw=0;
+  setchr8(0);
+  Sync();
+  SetWriteHandler(0x8000,0xFFFF,BMC42in1rWrite);
+  SetReadHandler(0x8000,0xFFFF,CartBR);
+}
+
+static void StateRestore(int version)
+{
+  Sync();
+}
+
+void BMC42in1r_Init(CartInfo *info)
+{
+  info->Power=BMC42in1rPower;
+  info->Reset=BMC42in1rReset;
+  AddExState(&StateRegs, ~0, 0, 0);
+  GameStateRestore=StateRestore;
+}
+
+