X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=boards%2F106.c;fp=boards%2F106.c;h=638dda9d3e5f29610e861aa2e122eb6662232877;hp=0000000000000000000000000000000000000000;hb=386f5371eb984fb9c2860c83e740890a75cd45c1;hpb=eec2623f6183dd0f9494b99065a16bf90f2a1ccf

diff --git a/boards/106.c b/boards/106.c
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--- /dev/null
+++ b/boards/106.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[16], IRQa;
+static uint32 IRQCount;
+static uint8 *WRAM=NULL;
+static uint32 WRAMSIZE;
+
+static SFORMAT StateRegs[]=
+{
+  {&IRQa, 1, "IRQA"},
+  {&IRQCount, 4, "IRQCOUNT"},
+  {reg, 16, "REGS"},
+  {0}
+};
+
+static void Sync(void)
+{
+  setchr1(0x0000,reg[0]&0xfe);
+  setchr1(0x0400,reg[1]|1);
+  setchr1(0x0800,reg[2]&0xfe);
+  setchr1(0x0c00,reg[3]|1);
+  setchr1(0x1000,reg[4]);
+  setchr1(0x1400,reg[5]);
+  setchr1(0x1800,reg[6]);
+  setchr1(0x1c00,reg[7]);
+  setprg8r(0x10,0x6000,0);
+  setprg8(0x8000,(reg[0x8]&0xf)|0x10);
+  setprg8(0xA000,(reg[0x9]&0x1f));
+  setprg8(0xC000,(reg[0xa]&0x1f));
+  setprg8(0xE000,(reg[0xb]&0xf)|0x10);
+  setmirror((reg[0xc]&1)^1);
+}
+
+static DECLFW(M106Write)
+{
+  A&=0xF;
+  switch(A)
+  {
+    case 0xD: IRQa=0; IRQCount=0; X6502_IRQEnd(FCEU_IQEXT); break;
+    case 0xE: IRQCount=(IRQCount&0xFF00)|V; break;
+    case 0xF: IRQCount=(IRQCount&0x00FF)|(V<<8); IRQa=1; break;
+    default: reg[A]=V; Sync(); break;
+  }
+}
+
+static void M106Power(void)
+{
+  reg[8]=reg[9]=reg[0xa]=reg[0xb]=-1;
+  Sync();
+  SetReadHandler(0x6000,0x7FFF,CartBR);
+  SetReadHandler(0x8000,0xFFFF,CartBR);
+  SetWriteHandler(0x6000,0x7FFF,CartBW);
+  SetWriteHandler(0x8000,0xFFFF,M106Write);
+}
+
+static void M106Reset(void)
+{
+}
+
+static void M106Close(void)
+{
+  if(WRAM)
+    FCEU_gfree(WRAM);
+  WRAM=NULL;
+}
+
+void M106CpuHook(int a)
+{
+  if(IRQa)
+  {
+    IRQCount+=a;
+    if(IRQCount>0x10000)
+    {
+      X6502_IRQBegin(FCEU_IQEXT);
+      IRQa=0;
+    }
+  }
+}
+
+static void StateRestore(int version)
+{
+  Sync();
+}
+
+void Mapper106_Init(CartInfo *info)
+{
+  info->Reset=M106Reset;
+  info->Power=M106Power;
+  info->Close=M106Close;
+  MapIRQHook=M106CpuHook;
+  GameStateRestore=StateRestore;
+
+  WRAMSIZE=8192;
+  WRAM=(uint8*)FCEU_gmalloc(WRAMSIZE);
+  SetupCartPRGMapping(0x10,WRAM,WRAMSIZE,1);
+  AddExState(WRAM, WRAMSIZE, 0, "WRAM");
+
+  AddExState(&StateRegs, ~0, 0, 0);
+}