/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
- * Copyright (C) 2002 Ben Parnell
+ * 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
#include "mapinc.h"
-uint8 doh;
-static DECLFW(Mapper249_write)
+
+static DECLFW(Mapper57_write)
{
- switch(A&0xe001)
+ A&=0x8800;
+ if(A==0x8800)
{
- case 0x8000:doh=V;break;
- case 0x8001:switch(doh&7)
- {
- case 0:VROM_BANK2(0x0000,V>>1);break;
- case 1:VROM_BANK2(0x0800,V>>1);break;
- case 2:VROM_BANK1(0x1000,V);break;
-// case 6:ROM_BANK8(0xa000,V);break;
-// case 2:ROM_BANK8(0x8000,V);break;
- }
+ 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);
}
-// printf("$%04x:$%02x\n",A,V);
+ else
+ mapbyte1[1]=V;
+ VROM_BANK8((mapbyte1[1]&3)|(mapbyte1[0]&7)|((mapbyte1[0]&0x10)>>1));
+ //printf("$%04x:$%02x\n",A,V);
}
-void Mapper249_init(void)
+void Mapper57_init(void)
{
- SetWriteHandler(0x8000,0xffff,Mapper249_write);
+ SetWriteHandler(0x8000,0xffff,Mapper57_write);
}
-