updated bords/mappers/stuff to 0.98.15, lots of them got broken, asmcore support...

[fceu.git] / mappers / 57.c

diff --git a/mappers/57.c b/mappers/57.c
new file mode 100644 (file)
index 0000000..b64d270
--- /dev/null
+++ b/mappers/57.c
@@ -0,0 +1,49 @@
+/* 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(Mapper57_write)
+{
+ A&=0x8800;
+ if(A==0x8800)
+ {
+  mapbyte1[0]=V;
+  if(V&0x80)
+   ROM_BANK32(2|(V>>6));
+  else
+  {
+   ROM_BANK16(0x8000,(V>>5)&3);
+   ROM_BANK16(0xc000,(V>>5)&3);
+  }
+  MIRROR_SET((V&0x8)>>3);
+ }
+ else
+  mapbyte1[1]=V;
+ VROM_BANK8((mapbyte1[1]&3)|(mapbyte1[0]&7)|((mapbyte1[0]&0x10)>>1));
+ //printf("$%04x:$%02x\n",A,V);
+}
+
+void Mapper57_init(void)
+{
+ SetWriteHandler(0x8000,0xffff,Mapper57_write);
+}