mappers updated to 0.98.16

[fceu.git] / boards / 189.c

diff --git a/boards/189.c b/boards/189.c
new file mode 100644 (file)
index 0000000..23be63a
--- /dev/null
+++ b/boards/189.c
@@ -0,0 +1,48 @@
+/* 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"
+#include "mmc3.h"
+
+static void M189PW(uint32 A, uint8 V)
+{
+  setprg32(0x8000,EXPREGS[0]&3);
+}
+
+static DECLFW(M189Write)
+{
+  EXPREGS[0]=V|(V>>4); //actually, there is a two versions of 189 mapper with hi or lo bits bankswitching.
+  FixMMC3PRG(MMC3_cmd);
+}
+
+static void M189Power(void)
+{
+  EXPREGS[0]=EXPREGS[1]=0;
+  GenMMC3Power();
+  SetWriteHandler(0x4120,0x7FFF,M189Write);
+}
+
+void Mapper189_Init(CartInfo *info)
+{
+  GenMMC3_Init(info, 256, 256, 0, 0);
+  pwrap=M189PW;
+  info->Power=M189Power;
+  AddExState(EXPREGS, 2, 0, "EXPR");
+}