fceux/mappers/59.cpp

48 lines
1.2 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 int ay;
static DECLFW(Mapper59_write)
{
//printf("$%04x:$%02x\n",A,V);
setprg32(0x8000,(A&0x70)>>4);
setchr8(A&0x7);
//if(A&0x100)
// setprg32r(0x10,0x8000,0);
ay=A;
MIRROR_SET2((A&0x8)>>3);
}
static DECLFR(m59rd)
{
if(ay&0x100) return(0);
else
return(CartBR(A));
}
void Mapper59_init(void)
{
setprg32(0x8000,0);
SetReadHandler(0x8000,0xffff,m59rd);
SetWriteHandler(0x8000,0xffff,Mapper59_write);
}