--- /dev/null
+/* FCE Ultra - NES/Famicom Emulator\r
+ *\r
+ * Copyright notice for this file:\r
+ * Copyright (C) 2007 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\r
+ * 63in1 ghostbusters\r
+ */\r
+\r
+#include "mapinc.h"\r
+\r
+static uint8 reg[2], bank;\r
+static uint8 banks[4] = {0, 0, 1, 2};\r
+static uint8 *CHRROM=NULL;\r
+static uint32 CHRROMSIZE;\r
+\r
+static SFORMAT StateRegs[]=\r
+{\r
+ {reg, 2, "REGS"},\r
+ {&bank, 1, "BANK"},\r
+ {0}\r
+};\r
+\r
+static void Sync(void)\r
+{\r
+ if(reg[0]&0x20)\r
+ {\r
+ setprg16r(banks[bank],0x8000,reg[0]&0x1F);\r
+ setprg16r(banks[bank],0xC000,reg[0]&0x1F);\r
+ }\r
+ else\r
+ setprg32r(banks[bank],0x8000,(reg[0]>>1)&0x0F);\r
+ if(reg[1]&2)\r
+ setchr8r(0x10,0);\r
+ else\r
+ setchr8(0);\r
+ setmirror((reg[0]&0x40)>>6);\r
+}\r
+\r
+static DECLFW(BMCGhostbusters63in1Write)\r
+{\r
+ reg[A&1]=V;\r
+ bank=((reg[0]&0x80)>>7)|((reg[1]&1)<<1);\r
+// FCEU_printf("reg[0]=%02x, reg[1]=%02x, bank=%02x\n",reg[0],reg[1],bank);\r
+ Sync();\r
+}\r
+\r
+static DECLFR(BMCGhostbusters63in1Read)\r
+{\r
+ if(bank==1)\r
+ return X.DB;\r
+ else\r
+ return CartBR(A);\r
+}\r
+\r
+static void BMCGhostbusters63in1Power(void)\r
+{\r
+ reg[0]=reg[1]=0;\r
+ Sync();\r
+ SetReadHandler(0x8000,0xFFFF,BMCGhostbusters63in1Read);\r
+ SetWriteHandler(0x8000,0xFFFF,BMCGhostbusters63in1Write);\r
+}\r
+\r
+static void BMCGhostbusters63in1Reset(void)\r
+{\r
+ reg[0]=reg[1]=0;\r
+}\r
+\r
+static void StateRestore(int version)\r
+{\r
+ Sync();\r
+}\r
+\r
+static void BMCGhostbusters63in1Close(void)\r
+{\r
+ if(CHRROM)\r
+ FCEU_gfree(CHRROM);\r
+ CHRROM=NULL;\r
+}\r
+\r
+void BMCGhostbusters63in1_Init(CartInfo *info)\r
+{\r
+ info->Reset=BMCGhostbusters63in1Reset;\r
+ info->Power=BMCGhostbusters63in1Power;\r
+ info->Close=BMCGhostbusters63in1Close;\r
+\r
+ CHRROMSIZE=8192; // dummy CHRROM, VRAM disable\r
+ CHRROM=(uint8*)FCEU_gmalloc(CHRROMSIZE);\r
+ SetupCartPRGMapping(0x10,CHRROM,CHRROMSIZE,0);\r
+ AddExState(CHRROM, CHRROMSIZE, 0, "CHRROM");\r
+\r
+ GameStateRestore=StateRestore;\r
+ AddExState(&StateRegs, ~0, 0, 0);\r
+}\r