--- /dev/null
+/* 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");
+}