X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=mappers%2F208.c;fp=mappers%2F208.c;h=29b7efeabe4103218fe04b64837b5ba4238e10b3;hb=d97315ac0bca825d2d50a44453bc5652946e2c67;hp=0000000000000000000000000000000000000000;hpb=890e37ba2b8ea1c7593dc05926d7431e3bd00bfb;p=fceu.git

diff --git a/mappers/208.c b/mappers/208.c
new file mode 100644
index 0000000..29b7efe
--- /dev/null
+++ b/mappers/208.c
@@ -0,0 +1,139 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2003 Xodnizel
+ *
+ * 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 uint8 PRGSel;
+static uint8 PBuf[4],PSel;
+static uint8 cmd;
+static uint8 DRegs[8];
+static uint32 count=0;
+static uint32 last=0;
+
+static DECLFW(M208Write1)
+{
+ PRGSel=(V&0x1)|((V>>3)&0x2);
+ setprg32(0x8000,PRGSel);
+}
+
+static DECLFW(M208Write2)
+{
+ static uint8 lut[256]={
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x59, 0x49, 0x19, 0x09, 0x59, 0x49, 0x19, 0x09,
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x51, 0x41, 0x11, 0x01, 0x51, 0x41, 0x11, 0x01,
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x59, 0x49, 0x19, 0x09, 0x59, 0x49, 0x19, 0x09,
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x51, 0x41, 0x11, 0x01, 0x51, 0x41, 0x11, 0x01,
+  0x00, 0x10, 0x40, 0x50, 0x00, 0x10, 0x40, 0x50,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x08, 0x18, 0x48, 0x58, 0x08, 0x18, 0x48, 0x58,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x00, 0x10, 0x40, 0x50, 0x00, 0x10, 0x40, 0x50,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x08, 0x18, 0x48, 0x58, 0x08, 0x18, 0x48, 0x58,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x58, 0x48, 0x18, 0x08, 0x58, 0x48, 0x18, 0x08,
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x50, 0x40, 0x10, 0x00, 0x50, 0x40, 0x10, 0x00,
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x58, 0x48, 0x18, 0x08, 0x58, 0x48, 0x18, 0x08,
+  0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x50, 0x40, 0x10, 0x00, 0x50, 0x40, 0x10, 0x00,
+  0x01, 0x11, 0x41, 0x51, 0x01, 0x11, 0x41, 0x51,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x09, 0x19, 0x49, 0x59, 0x09, 0x19, 0x49, 0x59,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x01, 0x11, 0x41, 0x51, 0x01, 0x11, 0x41, 0x51,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  0x09, 0x19, 0x49, 0x59, 0x09, 0x19, 0x49, 0x59,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+
+ };
+ if(A<=0x57FF) PSel=V;
+ else
+  PBuf[(A&0x03)]=V^lut[PSel];
+}
+
+static DECLFR(M208Read)
+{
+ return(PBuf[(A&0x3)]);
+}
+
+static void Sync(void)
+{
+ int x;
+
+ setchr2(0x0000,DRegs[0]>>1);
+ setchr2(0x0800,DRegs[1]>>1);
+ for(x=0;x<4;x++)
+  setchr1(0x1000+x*0x400,DRegs[2+x]);
+}
+
+static DECLFW(M208HWrite)
+{
+ switch(A&0xe001)
+ {
+  case 0xc000:IRQLatch=IRQCount=V;break;
+  case 0xc001:IRQCount=IRQLatch;last=count=0;break;
+  case 0xe000:IRQa=0;X6502_IRQEnd(FCEU_IQEXT);break;
+  case 0xe001:IRQa=1;break;
+  case 0x8000:cmd=V;break;
+  case 0x8001:DRegs[cmd&7]=V;
+                Sync();
+                break;
+
+ }
+}
+
+static void M208Power(void)
+{
+ PRGSel=3;
+ setprg32(0x8000,3);
+ SetWriteHandler(0x4800,0x4FFF,M208Write1);
+ SetWriteHandler(0x5000,0x5fff,M208Write2);
+ SetWriteHandler(0x8000,0xFFFF,M208HWrite);
+ SetReadHandler(0x5800,0x5FFF,M208Read);
+ SetReadHandler(0x8000,0xffff,CartBR);
+}
+
+static void sl(void)
+{
+ if(IRQa)
+ {
+  if(IRQCount>=0)
+  {
+   IRQCount--;
+   if(IRQCount<0)
+   {
+    X6502_IRQBegin(FCEU_IQEXT);
+   }
+  }
+ }
+}
+
+static void FP_FASTAPASS(1) foo(uint32 A)
+{
+ if((A&0x2000) && !(last&0x2000))
+ {
+  count++;
+  if(count==42)
+  {
+   sl();
+   count=0;
+  }
+ }
+ last=A;
+}
+
+void Mapper208_Init(CartInfo *info)
+{
+ info->Power=M208Power;
+ //GameHBIRQHook=sl;
+ PPU_hook=foo;
+}
+