merge mappers from FCEU-mm

[fceu.git] / boards / dance2000.c

diff --git a/boards/dance2000.c b/boards/dance2000.c
new file mode 100644 (file)
index 0000000..8089270
--- /dev/null
+++ b/boards/dance2000.c
@@ -0,0 +1,111 @@
+/* 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
+ * \r
+ * Dance 2000 12-in-1\r
+ *\r
+ */\r
+\r
+#include "mapinc.h"\r
+\r
+static uint8 prg, mirr, prgmode;\r
+static uint8 *WRAM=NULL;\r
+static uint32 WRAMSIZE;\r
+\r
+static SFORMAT StateRegs[]=\r
+{\r
+  {&prg, 1, "REGS"},\r
+  {&mirr, 1, "MIRR"},\r
+  {&prgmode, 1, "MIRR"},\r
+  {0}\r
+};\r
+\r
+static void Sync(void)\r
+{\r
+  setmirror(mirr);\r
+  setprg8r(0x10,0x6000,0);\r
+  setchr8(0);\r
+  if(prgmode)\r
+    setprg32(0x8000,prg&7);\r
+  else {\r
+    setprg16(0x8000,prg&0x0f);\r
+    setprg16(0xC000,0);\r
+  }\r
+}\r
+\r
+static DECLFW(UNLD2000Write)\r
+{\r
+//  FCEU_printf("write %04x:%04x\n",A,V);\r
+  switch(A) {\r
+    case 0x5000: prg = V; Sync(); break;\r
+    case 0x5200: mirr = (V & 1)^1; prgmode = V & 4; Sync(); break;\r
+//    default: FCEU_printf("write %04x:%04x\n",A,V);\r
+  }\r
+}\r
+\r
+static DECLFR(UNLD2000Read)\r
+{\r
+  if(prg & 0x40)\r
+    return X.DB;\r
+  else\r
+    return CartBR(A);\r
+}\r
+\r
+static void UNLD2000Power(void)\r
+{\r
+  prg = prgmode = 0;\r
+  Sync();\r
+  SetReadHandler(0x6000,0x7FFF,CartBR);\r
+  SetWriteHandler(0x6000,0x7FFF,CartBW);\r
+  SetReadHandler(0x8000,0xFFFF,UNLD2000Read);\r
+  SetWriteHandler(0x4020,0x5FFF,UNLD2000Write);\r
+}\r
+\r
+static void UNLAX5705IRQ(void)\r
+{\r
+  if(scanline > 174) setchr4(0x0000,1);\r
+  else setchr4(0x0000,0);\r
+}\r
+\r
+static void UNLD2000Close(void)\r
+{\r
+  if(WRAM)\r
+    FCEU_gfree(WRAM);\r
+  WRAM=NULL;\r
+}\r
+\r
+\r
+static void StateRestore(int version)\r
+{\r
+  Sync();\r
+}\r
+\r
+void UNLD2000_Init(CartInfo *info)\r
+{\r
+  info->Power=UNLD2000Power;\r
+  info->Close=UNLD2000Close;\r
+  GameHBIRQHook=UNLAX5705IRQ;\r
+  GameStateRestore=StateRestore;\r
+\r
+  WRAMSIZE=8192;\r
+  WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);\r
+  SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);\r
+  AddExState(WRAM, WRAMSIZE, 0, "WRAM");\r
+\r
+  AddExState(&StateRegs, ~0, 0, 0);\r
+}\r