updated bords/mappers/stuff to 0.98.15, lots of them got broken, asmcore support...

[fceu.git] / boards / 8157.c

diff --git a/boards/8157.c b/boards/8157.c
new file mode 100644 (file)
index 0000000..3c4a4fb
--- /dev/null
+++ b/boards/8157.c
@@ -0,0 +1,77 @@
+/* FCE Ultra - NES/Famicom Emulator\r
+ *\r
+ * Copyright notice for this file:\r
+ *  Copyright (C) 2005 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
+\r
+#include "mapinc.h"\r
+\r
+static uint16 cmdreg;\r
+static SFORMAT StateRegs[]=\r
+{\r
+  {&cmdreg, 2, "CMDREG"},\r
+  {0}\r
+};\r
+\r
+static void Sync(void)\r
+{\r
+  setprg16r((cmdreg&0x060)>>5,0x8000,(cmdreg&0x01C)>>2);\r
+  setprg16r((cmdreg&0x060)>>5,0xC000,(cmdreg&0x200)?(~0):0);\r
+  setmirror(((cmdreg&2)>>1)^1);\r
+}\r
+\r
+static DECLFR(UNL8157Read)\r
+{\r
+  if(cmdreg&0x100)\r
+    return 0xFF;\r
+  else\r
+    return CartBR(A);\r
+}\r
+\r
+static DECLFW(UNL8157Write)\r
+{\r
+  cmdreg=A;\r
+  Sync();\r
+}\r
+\r
+static void UNL8157Power(void)\r
+{\r
+  setchr8(0);\r
+  SetWriteHandler(0x8000,0xFFFF,UNL8157Write);\r
+  SetReadHandler(0x8000,0xFFFF,UNL8157Read);\r
+  cmdreg=0;\r
+  Sync();\r
+}\r
+\r
+static void UNL8157Reset(void)\r
+{\r
+  cmdreg=0;\r
+  Sync();\r
+}\r
+\r
+static void UNL8157Restore(int version)\r
+{\r
+  Sync();\r
+}\r
+\r
+void UNL8157_Init(CartInfo *info)\r
+{\r
+  info->Power=UNL8157Power;\r
+  info->Reset=UNL8157Reset;\r
+  GameStateRestore=UNL8157Restore;\r
+  AddExState(&StateRegs, ~0, 0, 0);\r
+}\r