mappers updated to 0.98.16

[fceu.git] / boards / 187.c

diff --git a/boards/187.c b/boards/187.c
new file mode 100644 (file)
index 0000000..0fa4a15
--- /dev/null
+++ b/boards/187.c
@@ -0,0 +1,104 @@
+/* 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 M187CW(uint32 A, uint8 V)
+{
+  if((A&0x1000)==((MMC3_cmd&0x80)<<5))
+    setchr1(A,V|0x100);
+  else
+    setchr1(A,V);
+}
+
+static void M187PW(uint32 A, uint8 V)
+{
+  if(EXPREGS[0]&0x80)
+  {
+    uint8 bank=EXPREGS[0]&0x1F;
+    if(EXPREGS[0]&0x20)
+      setprg32(0x8000,bank>>2);
+    else
+    {
+      setprg16(0x8000,bank);
+      setprg16(0xC000,bank);
+    }
+  }
+  else
+    setprg8(A,V&0x3F);
+}
+
+static DECLFW(M187Write8000)
+{
+  EXPREGS[2]=1;
+  MMC3_CMDWrite(A,V);
+}
+
+static DECLFW(M187Write8001)
+{
+  if(EXPREGS[2])
+    MMC3_CMDWrite(A,V);
+}
+
+static DECLFW(M187Write8003)
+{
+  EXPREGS[2]=0;
+  if(V==0x28)setprg8(0xC000,0x17);
+  else if(V==0x2A)setprg8(0xA000,0x0F);
+}
+
+
+static DECLFW(M187WriteLo)
+{
+  EXPREGS[1]=V;
+  if(A==0x5000)
+  {
+    EXPREGS[0]=V;
+    FixMMC3PRG(MMC3_cmd);
+  }
+}
+
+static uint8 prot_data[4] = { 0x83, 0x83, 0x42, 0x00 };
+static DECLFR(M187Read)
+{
+  return prot_data[EXPREGS[1]&3];
+}
+
+static void M187Power(void)
+{
+  EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=0;
+  GenMMC3Power();
+  Write_IRQFM(0x4017,0x40);
+  SetReadHandler(0x5000,0x5FFF,M187Read);
+  SetWriteHandler(0x5000,0x5FFF,M187WriteLo);
+  SetWriteHandler(0x8000,0x8000,M187Write8000);
+  SetWriteHandler(0x8001,0x8001,M187Write8001);
+  SetWriteHandler(0x8003,0x8003,M187Write8003);
+}
+
+void Mapper187_Init(CartInfo *info)
+{
+  GenMMC3_Init(info, 256, 256, 0, 0);
+  pwrap=M187PW;
+  cwrap=M187CW;
+  info->Power=M187Power;
+  AddExState(EXPREGS, 3, 0, "EXPR");
+}