51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/* 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 void DoIt(void)
|
|
{
|
|
ROM_BANK16(0x8000,(mapbyte1[1]&3) | ((mapbyte1[0]&0x18)>>1));
|
|
ROM_BANK16(0xc000,3|(((mapbyte1[0])&0x18)>>1));
|
|
}
|
|
|
|
DECLFW(Mapper232_write)
|
|
{
|
|
if(A<=0x9FFF)
|
|
mapbyte1[0]=V;
|
|
else
|
|
mapbyte1[1]=V;
|
|
DoIt();
|
|
}
|
|
|
|
static void QuattroReset(void)
|
|
{
|
|
mapbyte1[0]=0x18;
|
|
DoIt();
|
|
}
|
|
|
|
void Mapper232_init(void)
|
|
{
|
|
SetWriteHandler(0x6000,0xffff,Mapper232_write);
|
|
MapperReset=QuattroReset;
|
|
QuattroReset();
|
|
}
|
|
|