merge mapper code from FCEUX

[fceu.git] / boards / t-262.c

diff --git a/boards/t-262.c b/boards/t-262.c
index fe9b446..15e94ea 100644 (file)
--- a/boards/t-262.c
+++ b/boards/t-262.c
@@ -1,83 +1,84 @@
-/* FCE Ultra - NES/Famicom Emulator
- *
- * Copyright notice for this file:
- *  Copyright (C) 2005 CaH4e3
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "mapinc.h"
-
-static uint16 addrreg;
-static uint8 datareg;
-static uint8 busy;
-static SFORMAT StateRegs[]=
-{
-  {&addrreg, 2, "ADDRREG"},
-  {&datareg, 1, "DATAREG"},
-  {&busy, 1, "BUSY"},
-  {0}
-};
-
-static void Sync(void)
-{
-  setprg16(0x8000,(datareg&7)|((addrreg&0x60)>>2)|((addrreg&0x100)>>3));
-  setprg16(0xC000,7|((addrreg&0x60)>>2)|((addrreg&0x100)>>3));
-  setmirror(((addrreg&2)>>1)^1);
-}
-
-static DECLFW(BMCT262Write)
-{
-  if(busy||(A==0x8000))
-    datareg=V;
-  else
-  {
-    addrreg=A;
-    busy=1;
-  }
-  Sync();
-}
-
-static void BMCT262Power(void)
-{
-  setchr8(0);
-  SetWriteHandler(0x8000,0xFFFF,BMCT262Write);
-  SetReadHandler(0x8000,0xFFFF,CartBR);
-  busy=0;
-  addrreg=0;
-  datareg=0;
-  Sync();
-}
-
-static void BMCT262Reset(void)
-{
-  busy=0;
-  addrreg=0;
-  datareg=0;
-  Sync();
-}
-
-static void BMCT262Restore(int version)
-{
-  Sync();
-}
-
-void BMCT262_Init(CartInfo *info)
-{
-  info->Power=BMCT262Power;
-  info->Reset=BMCT262Reset;
-  GameStateRestore=BMCT262Restore;
-  AddExState(&StateRegs, ~0, 0, 0);
-}
+/* FCE Ultra - NES/Famicom Emulator\r
+ *\r
+ * Copyright notice for this file:\r
+ *  Copyright (C) 2006 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA\r
+ */\r
+\r
+#include "mapinc.h"\r
+\r
+static uint16 addrreg;\r
+static uint8 datareg;\r
+static uint8 busy;\r
+static SFORMAT StateRegs[]=\r
+{\r
+  {&addrreg, 2, "ADDRREG"},\r
+  {&datareg, 1, "DATAREG"},\r
+  {&busy, 1, "BUSY"},\r
+  {0}\r
+};\r
+\r
+static void Sync(void)\r
+{\r
+  uint16 base=((addrreg&0x60)>>2)|((addrreg&0x100)>>3);  \r
+  setprg16(0x8000,(datareg&7)|base);\r
+  setprg16(0xC000,7|base);\r
+  setmirror(((addrreg&2)>>1)^1);\r
+}\r
+\r
+static DECLFW(BMCT262Write)\r
+{\r
+  if(busy||(A==0x8000))\r
+    datareg=V;\r
+  else\r
+  {\r
+    addrreg=A;\r
+    busy=1;\r
+  }\r
+  Sync();\r
+}\r
+\r
+static void BMCT262Power(void)\r
+{\r
+  setchr8(0);\r
+  SetWriteHandler(0x8000,0xFFFF,BMCT262Write);\r
+  SetReadHandler(0x8000,0xFFFF,CartBR);\r
+  busy=0;\r
+  addrreg=0;\r
+  datareg=0xff;\r
+  Sync();\r
+}\r
+\r
+static void BMCT262Reset(void)\r
+{\r
+  busy=0;\r
+  addrreg=0;\r
+  datareg=0;\r
+  Sync();\r
+}\r
+\r
+static void BMCT262Restore(int version)\r
+{\r
+  Sync();\r
+}\r
+\r
+void BMCT262_Init(CartInfo *info)\r
+{\r
+  info->Power=BMCT262Power;\r
+  info->Reset=BMCT262Reset;\r
+  GameStateRestore=BMCT262Restore;\r
+  AddExState(&StateRegs, ~0, 0, 0);\r
+}\r