merge mapper code from FCEUX

[fceu.git] / mappers / 156.c

diff --git a/mappers/156.c b/mappers/156.c
new file mode 100644 (file)
index 0000000..8e40a19
--- /dev/null
+++ b/mappers/156.c
@@ -0,0 +1,126 @@
+/* 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
+ * DIS23C01 DAOU ROM CONTROLLER, Korea\r
+ * Metal Force (K)\r
+ * Buzz and Waldog (K)\r
+ * General's Son (K)\r
+ *\r
+ */\r
+\r
+#include "mapinc.h"\r
+\r
+static uint8 chrlo[8], chrhi[8], prg, mirr, mirrisused = 0;\r
+// uint8 *WRAM=NULL;\r
+static uint32 WRAMSIZE;\r
+\r
+static SFORMAT StateRegs[]=\r
+{\r
+  {&prg, 1, "PREG"},\r
+  {chrlo, 8, "CRLO"},\r
+  {chrhi, 8, "CRHI"},\r
+  {&mirr, 1, "MIRR"},\r
+  {0}\r
+};\r
+\r
+static void Sync(void)\r
+{\r
+  uint32 i;\r
+  for(i=0; i<8; i++)\r
+    setchr1(i<<10, chrlo[i]|(chrhi[i] << 8));\r
+  setprg8r(0x10,0x6000,0);\r
+  setprg16(0x8000,prg);\r
+  setprg16(0xC000,~0);\r
+  if(mirrisused)\r
+    setmirror(mirr ^ 1);\r
+  else\r
+    setmirror(MI_0);\r
+}\r
+\r
+static DECLFW(M156Write)\r
+{\r
+  switch(A) {\r
+   case 0xC000:\r
+   case 0xC001:\r
+   case 0xC002:\r
+   case 0xC003: chrlo[A&3] = V; Sync(); break;\r
+   case 0xC004:\r
+   case 0xC005:\r
+   case 0xC006:\r
+   case 0xC007: chrhi[A&3] = V; Sync(); break;\r
+   case 0xC008:\r
+   case 0xC009:\r
+   case 0xC00A:\r
+   case 0xC00B: chrlo[4+(A&3)] = V; Sync(); break;\r
+   case 0xC00C:\r
+   case 0xC00D:\r
+   case 0xC00E:\r
+   case 0xC00F: chrhi[4+(A&3)] = V; Sync(); break;\r
+   case 0xC010: prg = V; Sync(); break;\r
+   case 0xC014: mirr = V; mirrisused = 1; Sync(); break;\r
+  }\r
+}\r
+\r
+static void M1566Reset()\r
+{\r
+       for(int i=0;i<8;i++)\r
+       {\r
+               chrlo[i]=0;\r
+               chrhi[i]=0;\r
+       }\r
+       prg=0;\r
+       mirr=0;\r
+       mirrisused = 0;\r
+}\r
+\r
+static void M156Power(void)\r
+{\r
+  Sync();\r
+  SetReadHandler(0x6000,0xFFFF,CartBR);\r
+  SetWriteHandler(0x6000,0x7FFF,CartBW);\r
+  SetWriteHandler(0xC000,0xCFFF,M156Write);\r
+\r
+       M1566Reset();\r
+}\r
+\r
+static void M156Close(void)\r
+{\r
+  if(WRAM)\r
+    FCEU_gfree(WRAM);\r
+  WRAM=NULL;\r
+}\r
+\r
+static void StateRestore(int version)\r
+{\r
+  Sync();\r
+}\r
+\r
+void Mapper156_Init(CartInfo *info)\r
+{\r
+  info->Power=M156Power;\r
+  info->Close=M156Close;\r
+\r
+  WRAMSIZE=8192;\r
+  WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r
+  SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r
+  AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r
+\r
+  GameStateRestore=StateRestore;\r
+  AddExState(&StateRegs, ~0, 0, 0);\r
+}\r