fceugx/source/fceultra/mbshare/karaoke.c
2008-09-19 05:33:26 +00:00

81 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 DReg;
static SFORMAT StateRegs[]=
{
{&DReg, 1, "DREG"},
{0}
};
static void Sync(void)
{
//if(!DReg)
//printf("%02x\n",DReg);
if(DReg)
{
if(DReg & 0x10)
setprg16(0x8000, (DReg & 0x7));
else
setprg16(0x8000, (DReg&0x7) | 0x8);
}
else
setprg16(0x8000, 0x7);
}
static void StateRestore(int version)
{
Sync();
}
static DECLFW(M188Write)
{
DReg = V;
Sync();
}
static DECLFR(testr)
{
return(3);
}
static void Power(void)
{
setchr8(0);
setprg8(0xc000,0xE);
setprg8(0xe000,0xF);
DReg = 0;
Sync();
SetReadHandler(0x6000,0x7FFF,testr);
SetReadHandler(0x8000,0xFFFF,CartBR);
SetWriteHandler(0x8000,0xFFFF,M188Write);
}
void Mapper188_Init(CartInfo *info)
{
info->Power=Power;
GameStateRestore=StateRestore;
AddExState(&StateRegs, ~0, 0, 0);
}