+/* FCE Ultra - NES/Famicom Emulator\r
+ *\r
+ * Copyright notice for this file:\r
+ * Copyright (C) 2009 CaH4e3\r
+ *\r
+ * This program is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * This program is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with this program; if not, write to the Free Software\r
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+ *\r
+ * RacerMate Chalenge II\r
+ *\r
+ */\r
+\r
+#include "mapinc.h"\r
+\r
+static uint8 reg;\r
+static uint8 *CHRRAM=NULL;\r
+static uint32 CHRRAMSIZE;\r
+\r
+static SFORMAT StateRegs[]=\r
+{\r
+ {®, 1, "REGS"},\r
+ {0}\r
+};\r
+\r
+static void Sync(void)\r
+{\r
+ setchr4r(0x10,0x0000,0);\r
+ setchr4r(0x10,0x1000,reg&0x0f);\r
+ setprg16(0x8000,reg>>6);\r
+ setprg16(0xc000,~0);\r
+}\r
+\r
+static DECLFW(M168Write)\r
+{\r
+ reg=V;\r
+ Sync();\r
+}\r
+\r
+static DECLFW(M168Dummy)\r
+{\r
+}\r
+\r
+static void M168Power(void)\r
+{\r
+ reg=0;\r
+ Sync();\r
+ SetWriteHandler(0x4020,0x7fff,M168Dummy);\r
+ SetWriteHandler(0xB000,0xB000,M168Write);\r
+ SetWriteHandler(0xF000,0xF000,M168Dummy);\r
+ SetWriteHandler(0xF080,0xF080,M168Dummy);\r
+ SetReadHandler(0x8000,0xFFFF,CartBR);\r
+}\r
+\r
+static void MNNNClose(void)\r
+{\r
+ if(CHRRAM)\r
+ FCEU_gfree(CHRRAM);\r
+ CHRRAM=NULL;\r
+}\r
+\r
+static void StateRestore(int version)\r
+{\r
+ Sync();\r
+}\r
+\r
+void Mapper168_Init(CartInfo *info)\r
+{\r
+ info->Power=M168Power;\r
+ info->Close=MNNNClose;\r
+ GameStateRestore=StateRestore;\r
+ AddExState(&StateRegs, ~0, 0, 0);\r
+\r
+ CHRRAMSIZE=8192*8;\r
+ CHRRAM=(uint8*)FCEU_gmalloc(CHRRAMSIZE);\r
+ SetupCartCHRMapping(0x10,CHRRAM,CHRRAMSIZE,1);\r
+ AddExState(CHRRAM, CHRRAMSIZE, 0, "CRAM");\r
+\r
+}\r