boards/__dummy_mapper.c

   1 /* FCE Ultra - NES/Famicom Emulator\r
   2  *\r
   3  * Copyright notice for this file:\r
   4  *  Copyright (C) 2012 CaH4e3\r
   5  *\r
   6  * This program is free software; you can redistribute it and/or modify\r
   7  * it under the terms of the GNU General Public License as published by\r
   8  * the Free Software Foundation; either version 2 of the License, or\r
   9  * (at your option) any later version.\r
  10  *\r
  11  * This program is distributed in the hope that it will be useful,\r
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  14  * GNU General Public License for more details.\r
  15  *\r
  16  * You should have received a copy of the GNU General Public License\r
  17  * along with this program; if not, write to the Free Software\r
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
  19  */\r
  20 \r
  21 #include "mapinc.h"\r
  22 \r
  23 static uint8 reg[8];\r
  24 static uint8 IRQa;\r
  25 static int16 IRQCount, IRQLatch;\r
  26 /*\r
  27 static uint8 *WRAM=NULL;\r
  28 static uint32 WRAMSIZE;\r
  29 static uint8 *CHRRAM=NULL;\r
  30 static uint32 CHRRAMSIZE;\r
  31 */\r
  32 \r
  33 static SFORMAT StateRegs[]=\r
  34 {\r
  35   {reg, 8, "REGS"},\r
  36   {&IRQa, 1, "IRQA"},\r
  37   {&IRQCount, 2, "IRQC"},\r
  38   {&IRQLatch, 2, "IRQL"},\r
  39   {0}\r
  40 };\r
  41 \r
  42 static void Sync(void)\r
  43 {\r
  44 }\r
  45 \r
  46 static DECLFW(MNNNWrite)\r
  47 {\r
  48 }\r
  49 \r
  50 static void MNNNPower(void)\r
  51 {\r
  52 //  SetReadHandler(0x6000,0x7fff,CartBR);\r
  53 // SetWriteHandler(0x6000,0x7fff,CartBW);\r
  54   SetReadHandler(0x8000,0xFFFF,CartBR);\r
  55   SetWriteHandler(0x8000,0xFFFF,MNNNWrite);\r
  56 }\r
  57 \r
  58 static void MNNNReset(void)\r
  59 {\r
  60 }\r
  61 \r
  62 /*\r
  63 static void MNNNClose(void)\r
  64 {\r
  65   if(WRAM)\r
  66     FCEU_gfree(WRAM);\r
  67   if(CHRRAM)\r
  68     FCEU_gfree(CHRRAM);\r
  69   WRAM=CHRRAM=NULL;\r
  70 }\r
  71 */\r
  72 \r
  73 static void MNNNIRQHook()\r
  74 {\r
  75   X6502_IRQBegin(FCEU_IQEXT);\r
  76 }\r
  77 \r
  78 static void StateRestore(int version)\r
  79 {\r
  80   Sync();\r
  81 }\r
  82 \r
  83 void MapperNNN_Init(CartInfo *info)\r
  84 {\r
  85   info->Reset=MNNNReset;\r
  86   info->Power=MNNNPower;\r
  87 //  info->Close=MNNNClose;\r
  88   GameHBIRQHook=MNNNIRQHook;\r
  89   GameStateRestore=StateRestore;\r
  90 /*\r
  91   CHRRAMSIZE=8192;\r
  92   CHRRAM=(uint8*)FCEU_gmalloc(CHRRAMSIZE);\r
  93   SetupCartCHRMapping(0x10,CHRRAM,CHRRAMSIZE,1);\r
  94   AddExState(CHRRAM, CHRRAMSIZE, 0, "CRAM");\r
  95 */\r
  96 /*\r
  97   WRAMSIZE=8192;\r
  98   WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r
  99   SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r
 100   AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r
 101   if(info->battery)\r
 102   {\r
 103     info->SaveGame[0]=WRAM;\r
 104     info->SaveGameLen[0]=WRAMSIZE;\r
 105   }\r
 106 */\r
 107   AddExState(&StateRegs, ~0, 0, 0);\r
 108 }\r