merge mapper code from FCEUX
[fceu.git] / boards / 187.c
index 0fa4a15..0f49748 100644 (file)
-/* 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"
-#include "mmc3.h"
-
-static void M187CW(uint32 A, uint8 V)
-{
-  if((A&0x1000)==((MMC3_cmd&0x80)<<5))
-    setchr1(A,V|0x100);
-  else
-    setchr1(A,V);
-}
-
-static void M187PW(uint32 A, uint8 V)
-{
-  if(EXPREGS[0]&0x80)
-  {
-    uint8 bank=EXPREGS[0]&0x1F;
-    if(EXPREGS[0]&0x20)
-      setprg32(0x8000,bank>>2);
-    else
-    {
-      setprg16(0x8000,bank);
-      setprg16(0xC000,bank);
-    }
-  }
-  else
-    setprg8(A,V&0x3F);
-}
-
-static DECLFW(M187Write8000)
-{
-  EXPREGS[2]=1;
-  MMC3_CMDWrite(A,V);
-}
-
-static DECLFW(M187Write8001)
-{
-  if(EXPREGS[2])
-    MMC3_CMDWrite(A,V);
-}
-
-static DECLFW(M187Write8003)
-{
-  EXPREGS[2]=0;
-  if(V==0x28)setprg8(0xC000,0x17);
-  else if(V==0x2A)setprg8(0xA000,0x0F);
-}
-
-
-static DECLFW(M187WriteLo)
-{
-  EXPREGS[1]=V;
-  if(A==0x5000)
-  {
-    EXPREGS[0]=V;
-    FixMMC3PRG(MMC3_cmd);
-  }
-}
-
-static uint8 prot_data[4] = { 0x83, 0x83, 0x42, 0x00 };
-static DECLFR(M187Read)
-{
-  return prot_data[EXPREGS[1]&3];
-}
-
-static void M187Power(void)
-{
-  EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=0;
-  GenMMC3Power();
-  Write_IRQFM(0x4017,0x40);
-  SetReadHandler(0x5000,0x5FFF,M187Read);
-  SetWriteHandler(0x5000,0x5FFF,M187WriteLo);
-  SetWriteHandler(0x8000,0x8000,M187Write8000);
-  SetWriteHandler(0x8001,0x8001,M187Write8001);
-  SetWriteHandler(0x8003,0x8003,M187Write8003);
-}
-
-void Mapper187_Init(CartInfo *info)
-{
-  GenMMC3_Init(info, 256, 256, 0, 0);
-  pwrap=M187PW;
-  cwrap=M187CW;
-  info->Power=M187Power;
-  AddExState(EXPREGS, 3, 0, "EXPR");
-}
+/* 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA\r
+ */\r
+\r
+#include "mapinc.h"\r
+#include "mmc3.h"\r
+\r
+static void M187CW(uint32 A, uint8 V)\r
+{\r
+  if((A&0x1000)==((MMC3_cmd&0x80)<<5))\r
+    setchr1(A,V|0x100);\r
+  else\r
+    setchr1(A,V);\r
+}\r
+\r
+static void M187PW(uint32 A, uint8 V)\r
+{\r
+  if(EXPREGS[0]&0x80)\r
+  {\r
+    uint8 bank=EXPREGS[0]&0x1F;\r
+    if(EXPREGS[0]&0x20)\r
+      setprg32(0x8000,bank>>2);\r
+    else\r
+    {\r
+      setprg16(0x8000,bank);\r
+      setprg16(0xC000,bank);\r
+    }\r
+  }\r
+  else\r
+    setprg8(A,V&0x3F);\r
+}\r
+\r
+static DECLFW(M187Write8000)\r
+{\r
+  EXPREGS[2]=1;\r
+  MMC3_CMDWrite(A,V);\r
+}\r
+\r
+static DECLFW(M187Write8001)\r
+{\r
+  if(EXPREGS[2])\r
+    MMC3_CMDWrite(A,V);\r
+}\r
+\r
+static DECLFW(M187Write8003)\r
+{\r
+  EXPREGS[2]=0;\r
+  if(V==0x28)setprg8(0xC000,0x17);\r
+  else if(V==0x2A)setprg8(0xA000,0x0F);\r
+}\r
+\r
+\r
+static DECLFW(M187WriteLo)\r
+{\r
+  EXPREGS[1]=V;\r
+  if(A==0x5000)\r
+  {\r
+    EXPREGS[0]=V;\r
+    FixMMC3PRG(MMC3_cmd);\r
+  }\r
+}\r
+\r
+static uint8 prot_data[4] = { 0x83, 0x83, 0x42, 0x00 };\r
+static DECLFR(M187Read)\r
+{\r
+  return prot_data[EXPREGS[1]&3];\r
+}\r
+\r
+static void M187Power(void)\r
+{\r
+  EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=0;\r
+  GenMMC3Power();\r
+  SetReadHandler(0x5000,0x5FFF,M187Read);\r
+  SetWriteHandler(0x5000,0x5FFF,M187WriteLo);\r
+  SetWriteHandler(0x8000,0x8000,M187Write8000);\r
+  SetWriteHandler(0x8001,0x8001,M187Write8001);\r
+  SetWriteHandler(0x8003,0x8003,M187Write8003);\r
+}\r
+\r
+void Mapper187_Init(CartInfo *info)\r
+{\r
+  GenMMC3_Init(info, 256, 256, 0, 0);\r
+  pwrap=M187PW;\r
+  cwrap=M187CW;\r
+  info->Power=M187Power;\r
+  AddExState(EXPREGS, 3, 0, "EXPR");\r
+}\r