mappers updated to 0.98.16

[fceu.git] / boards / t-262.c

diff --git a/boards/t-262.c b/boards/t-262.c
new file mode 100644 (file)
index 0000000..fe9b446
--- /dev/null
+++ b/boards/t-262.c
@@ -0,0 +1,83 @@
+/* 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
+ */
+
+#include "mapinc.h"
+
+static uint16 addrreg;
+static uint8 datareg;
+static uint8 busy;
+static SFORMAT StateRegs[]=
+{
+  {&addrreg, 2, "ADDRREG"},
+  {&datareg, 1, "DATAREG"},
+  {&busy, 1, "BUSY"},
+  {0}
+};
+
+static void Sync(void)
+{
+  setprg16(0x8000,(datareg&7)|((addrreg&0x60)>>2)|((addrreg&0x100)>>3));
+  setprg16(0xC000,7|((addrreg&0x60)>>2)|((addrreg&0x100)>>3));
+  setmirror(((addrreg&2)>>1)^1);
+}
+
+static DECLFW(BMCT262Write)
+{
+  if(busy||(A==0x8000))
+    datareg=V;
+  else
+  {
+    addrreg=A;
+    busy=1;
+  }
+  Sync();
+}
+
+static void BMCT262Power(void)
+{
+  setchr8(0);
+  SetWriteHandler(0x8000,0xFFFF,BMCT262Write);
+  SetReadHandler(0x8000,0xFFFF,CartBR);
+  busy=0;
+  addrreg=0;
+  datareg=0;
+  Sync();
+}
+
+static void BMCT262Reset(void)
+{
+  busy=0;
+  addrreg=0;
+  datareg=0;
+  Sync();
+}
+
+static void BMCT262Restore(int version)
+{
+  Sync();
+}
+
+void BMCT262_Init(CartInfo *info)
+{
+  info->Power=BMCT262Power;
+  info->Reset=BMCT262Reset;
+  GameStateRestore=BMCT262Restore;
+  AddExState(&StateRegs, ~0, 0, 0);
+}