fceux/boards/dream.cpp

57 lines
1.4 KiB
C++

/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2005 CaH4e3
*
* 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 latche;
static void Sync(void)
{
setprg16(0x8000,latche);
setprg16(0xC000,8);
}
static DECLFW(DREAMWrite)
{
latche=V&7;
Sync();
}
static void DREAMPower(void)
{
latche=0;
Sync();
setchr8(0);
SetReadHandler(0x8000,0xFFFF,CartBR);
SetWriteHandler(0x5020,0x5020,DREAMWrite);
}
static void Restore(int version)
{
Sync();
}
void DreamTech01_Init(CartInfo *info)
{
GameStateRestore=Restore;
info->Power=DREAMPower;
AddExState(&latche, 1, 0, "LATCH");
}