1 files changed, 76 insertions, 0 deletions
diff --git a/mappers/43.c b/mappers/43.c
new file mode 100644
index 00000000..ef7d40d7
--- /dev/null
+++ b/mappers/43.c
@@ -0,0 +1,76 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2002 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 DECLFW(Mapper43_write)
+{
+ //printf("$%04x:$%02x\n",A,V);
+ if((A&0x8122)==0x8122)
+ {
+  X6502_IRQEnd(FCEU_IQEXT);
+  if(V&2) IRQa=1;
+  else
+   IRQCount=IRQa=0;
+ }
+}
+
+static DECLFW(M43Low)
+{
+// int transo[8]={4,3,4,4,4,7,5,6};
+ int transo[8]={4,3,2,3,4,7,5,6};
+ A&=0xF0FF;
+ if(A==0x4022)
+  setprg8(0x6000,transo[V&7]);
+ //printf("$%04x:$%02x\n",A,V);
+}
+
+static void FP_FASTAPASS(1) M43Ho(int a)
+{
+ IRQCount+=a;
+ if(IRQa)
+  if(IRQCount>=4096)
+  {
+   X6502_IRQBegin(FCEU_IQEXT);
+  }
+}
+
+//static DECLFR(boo)
+//{
+// printf("$%04x\n",A);
+// return( ROM[0x2000*8 +0x1000 +(A-0x5000)]);
+//}
+
+void Mapper43_init(void)
+{
+ setprg4(0x5000,16);
+ setprg8(0x6000,2);
+ setprg8(0x8000,1);
+ setprg8(0xa000,0);
+ setprg8(0xc000,4);
+ setprg8(0xe000,9);
+ SetWriteHandler(0x8000,0xffff,Mapper43_write);
+ SetWriteHandler(0x4020,0x7fff,M43Low);
+ //SetReadHandler(0x5000,0x5fff,boo);
+ SetReadHandler(0x6000,0xffff,CartBR);
+ MapIRQHook=M43Ho;
+}