mirror of
https://github.com/dborth/fceugx.git
synced 2024-11-01 15:05:05 +01:00
55 lines
1.6 KiB
C++
55 lines
1.6 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 uint8 MMC3_cmd;
|
|
|
|
static DECLFW(Mapper76_write)
|
|
{
|
|
switch(A&0xE001){
|
|
case 0x8000:
|
|
MMC3_cmd = V;
|
|
break;
|
|
case 0x8001:
|
|
switch(MMC3_cmd&0x07){
|
|
case 2: VROM_BANK2(0x000,V);break;
|
|
case 3: VROM_BANK2(0x800,V);break;
|
|
case 4: VROM_BANK2(0x1000,V);break;
|
|
case 5: VROM_BANK2(0x1800,V);break;
|
|
case 6:
|
|
if(MMC3_cmd&0x40) ROM_BANK8(0xC000,V);
|
|
else ROM_BANK8(0x8000,V);
|
|
break;
|
|
case 7: ROM_BANK8(0xA000,V);
|
|
break;
|
|
}
|
|
break;
|
|
case 0xA000:
|
|
MIRROR_SET(V&1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Mapper76_init(void)
|
|
{
|
|
SetWriteHandler(0x8000,0xffff,Mapper76_write);
|
|
}
|
|
|