fceux/boards/supervision.cpp

75 lines
1.7 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 cmd0, cmd1;
static void DoSuper(void)
{
setprg8r((cmd0&0xC)>>2,0x6000,((cmd0&0x3)<<4)|0xF);
if(cmd0&0x10)
{
setprg16r((cmd0&0xC)>>2,0x8000,((cmd0&0x3)<<3)|(cmd1&7));
setprg16r((cmd0&0xC)>>2,0xc000,((cmd0&0x3)<<3)|7);
}
else
setprg32r(4,0x8000,0);
setmirror(((cmd0&0x20)>>5)^1);
}
static DECLFW(SuperWrite)
{
if(!(cmd0&0x10))
{
cmd0=V;
DoSuper();
}
}
static DECLFW(SuperHi)
{
cmd1=V;
DoSuper();
}
static void SuperReset(void)
{
SetWriteHandler(0x6000,0x7FFF,SuperWrite);
SetWriteHandler(0x8000,0xFFFF,SuperHi);
SetReadHandler(0x6000,0xFFFF,CartBR);
cmd0=cmd1=0;
setprg32r(4,0x8000,0);
setchr8(0);
}
static void SuperRestore(int version)
{
DoSuper();
}
void Supervision16_Init(CartInfo *info)
{
AddExState(&cmd0, 1, 0,"L1");
AddExState(&cmd1, 1, 0,"L2");
info->Power=SuperReset;
GameStateRestore=SuperRestore;
}