X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2F178.c;fp=boards%2F178.c;h=19e1b8dcdb20bd19e654823add3b333d43483a63;hp=0000000000000000000000000000000000000000;hb=386f5371eb984fb9c2860c83e740890a75cd45c1;hpb=eec2623f6183dd0f9494b99065a16bf90f2a1ccf

diff --git a/boards/178.c b/boards/178.c
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+++ b/boards/178.c
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+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2007 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "mapinc.h"
+
+static uint8 reg[3];
+static uint8 *WRAM=NULL;
+static uint32 WRAMSIZE;
+
+static SFORMAT StateRegs[]=
+{
+  {reg, 3, "REGS"},
+  {0}
+};
+
+static void Sync(void)
+{
+  setmirror(reg[0]);
+  setprg8r(0x10,0x6000,0);
+  setchr8(0);
+  setprg32(0x8000,(reg[1]+reg[2]));
+}
+
+static DECLFW(M178Write0)
+{
+  reg[0]=(V&1)^1;
+  Sync();
+}
+
+static DECLFW(M178Write1)
+{
+  reg[1]=(V>>1)&0xf;
+  Sync();
+}
+
+static DECLFW(M178Write2)
+{
+  reg[2]=(V<<2);
+  Sync();
+}
+
+static void M178Power(void)
+{
+  reg[0]=1; reg[1]=0; reg[2]=0;
+  Sync();
+  SetReadHandler(0x6000,0x7FFF,CartBR);
+  SetWriteHandler(0x6000,0x7FFF,CartBW);
+  SetReadHandler(0x8000,0xFFFF,CartBR);
+  SetWriteHandler(0x4800,0x4800,M178Write0);
+  SetWriteHandler(0x4801,0x4801,M178Write1);
+  SetWriteHandler(0x4802,0x4802,M178Write2);
+}
+
+static void M178Close(void)
+{
+  if(WRAM)
+    FCEU_gfree(WRAM);
+  WRAM=NULL;
+}
+
+
+static void StateRestore(int version)
+{
+  Sync();
+}
+
+void Mapper178_Init(CartInfo *info)
+{
+  info->Power=M178Power;
+  info->Close=M178Close;
+  GameStateRestore=StateRestore;
+
+  WRAMSIZE=8192;
+  WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);
+  SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);
+  if(info->battery)
+  {
+    info->SaveGame[0]=WRAM;
+    info->SaveGameLen[0]=WRAMSIZE;
+  }
+  AddExState(WRAM, WRAMSIZE, 0, "WRAM");
+
+  AddExState(&StateRegs, ~0, 0, 0);
+}