-/* 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"
-
-#define rg mapbyte1
-static void DoPRG(void)
-{
- int32 b=((rg[0]>>1)&0xF) | ((rg[0]>>3)&0x10) | ((rg[1]&1)<<5);
- if(rg[0]&0x20) // 16 KB
- {
- ROM_BANK16(0x8000,(b<<1)|(rg[0]&1));
- ROM_BANK16(0xC000,(b<<1)|(rg[0]&1));
- }
- else
- ROM_BANK32(b);
-}
-
-static DECLFW(Mapper226_write)
-{
- rg[A&1]=V;
- DoPRG();
- if(A&1)
- {
- if(rg[1]&2)
- PPUCHRRAM=0; // Write protected.
- else
- PPUCHRRAM=0xFF; // Not write protected.
- }
- else
- MIRROR_SET2((rg[0]>>6)&1);
-}
-
-static void M26Reset(void)
-{
- rg[0]=rg[1]=0;
- DoPRG();
- PPUCHRRAM=0xFF;
- MIRROR_SET2(0);
-}
-
-static void M26Restore(int version)
-{
- DoPRG();
- if(rg[1]&2)
- PPUCHRRAM=0; // Write protected.
- else
- PPUCHRRAM=0xFF; // Not write protected.
- MIRROR_SET2((rg[0]>>6)&1);
-}
-
-void Mapper226_init(void)
-{
- SetWriteHandler(0x8000,0xffff,Mapper226_write);
- MapperReset=M26Reset;
- GameStateRestore=M26Restore;
- M26Reset();
-}
-
-#ifdef OLD // What the heck is this??
-DECLFW(Mapper226_write)
-{
- MIRROR_SET((A>>13)&1);
- VROM_BANK8(A&0x7F);
- if(A&0x1000)
- {
- if(A&0x40)
- {
- ROM_BANK16(0x8000,(((A>>7))<<1)+1);
- ROM_BANK16(0xC000,(((A>>7))<<1)+1);
- }
- else
- {
- ROM_BANK16(0x8000,(((A>>7))<<1));
- ROM_BANK16(0xC000,(((A>>7))<<1));
- }
- }
- else
- {
- ROM_BANK32(A>>7);
- }
-}
-
-void Mapper226_init(void)
-{
- SetWriteHandler(0x8000,0xffff,Mapper226_write);
-}
-#endif