boards/KS7037.c

   1 /* FCE Ultra - NES/Famicom Emulator\r
   2  *\r
   3  * Copyright notice for this file:\r
   4  *  Copyright (C) 2011 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  * FDS Conversion\r
  21  *\r
  22  */\r
  23 \r
  24 #include "mapinc.h"\r
  25 \r
  26 static uint8 reg[8], cmd;\r
  27 static uint8 *WRAM=NULL;\r
  28 static uint32 WRAMSIZE;\r
  29 \r
  30 static void(*WSync)(void);\r
  31 \r
  32 static SFORMAT StateRegs[]=\r
  33 {\r
  34   {&cmd, 1, "CMD"},\r
  35   {reg, 8, "REGS"},\r
  36   {0}\r
  37 };\r
  38 \r
  39 static void SyncKS7037(void)\r
  40 {\r
  41   setprg4r(0x10,0x6000,0);\r
  42   setprg4(0x7000,15);\r
  43   setprg8(0x8000,reg[6]);\r
  44   setprg4(0xA000,~3);\r
  45   setprg4r(0x10,0xB000,1);\r
  46   setprg8(0xC000,reg[7]);\r
  47   setprg8(0xE000,~0);\r
  48   setchr8(0);\r
  49   setmirrorw(reg[2]&1,reg[4]&1,reg[3]&1,reg[5]&1);\r
  50 }\r
  51 \r
  52 static void SyncLH10(void)\r
  53 {\r
  54   setprg8(0x6000,~1);\r
  55   setprg8(0x8000,reg[6]);\r
  56   setprg8(0xA000,reg[7]);\r
  57   setprg8r(0x10,0xC000,0);\r
  58   setprg8(0xE000,~0);\r
  59   setchr8(0);\r
  60   setmirror(0);\r
  61 }\r
  62 \r
  63 static DECLFW(UNLKS7037Write)\r
  64 {\r
  65   switch(A & 0xE001)\r
  66   {\r
  67     case 0x8000: cmd = V & 7; break;\r
  68     case 0x8001: reg[cmd] = V; WSync(); break;\r
  69   }\r
  70 }\r
  71 \r
  72 static void UNLKS7037Power(void)\r
  73 {\r
  74   reg[0]=reg[1]=reg[2]=reg[3]=reg[4]=reg[5]=reg[6]=reg[7]=0;\r
  75   WSync();\r
  76   SetReadHandler(0x6000,0xFFFF,CartBR);\r
  77   SetWriteHandler(0x6000,0x7FFF,CartBW);\r
  78   SetWriteHandler(0x8000,0x9FFF,UNLKS7037Write);\r
  79   SetWriteHandler(0xA000,0xBFFF,CartBW);\r
  80   SetWriteHandler(0xC000,0xFFFF,UNLKS7037Write);\r
  81 }\r
  82 \r
  83 static void LH10Power(void)\r
  84 {\r
  85   reg[0]=reg[1]=reg[2]=reg[3]=reg[4]=reg[5]=reg[6]=reg[7]=0;\r
  86   WSync();\r
  87   SetReadHandler(0x6000,0xFFFF,CartBR);\r
  88   SetWriteHandler(0x8000,0xBFFF,UNLKS7037Write);\r
  89   SetWriteHandler(0xC000,0xDFFF,CartBW);\r
  90   SetWriteHandler(0xE000,0xFFFF,UNLKS7037Write);\r
  91 }\r
  92 \r
  93 static void Close(void)\r
  94 {\r
  95   if(WRAM)\r
  96     FCEU_gfree(WRAM);\r
  97   WRAM=NULL;\r
  98 }\r
  99 \r
 100 static void StateRestore(int version)\r
 101 {\r
 102   WSync();\r
 103 }\r
 104 \r
 105 void UNLKS7037_Init(CartInfo *info)\r
 106 {\r
 107   info->Power=UNLKS7037Power;\r
 108   info->Close=Close;\r
 109   \r
 110   WSync = SyncKS7037;\r
 111 \r
 112   WRAMSIZE=8192;\r
 113   WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r
 114   SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r
 115   AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r
 116 \r
 117   GameStateRestore=StateRestore;\r
 118   AddExState(&StateRegs, ~0, 0, 0);\r
 119 }\r
 120 \r
 121 void LH10_Init(CartInfo *info)\r
 122 {\r
 123   info->Power=LH10Power;\r
 124   info->Close=Close;\r
 125   \r
 126   WSync = SyncLH10;\r
 127 \r
 128   WRAMSIZE=8192;\r
 129   WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r
 130   SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r
 131   AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r
 132 \r
 133   GameStateRestore=StateRestore;\r
 134   AddExState(&StateRegs, ~0, 0, 0);\r
 135 }\r