mirror of
https://github.com/dborth/fceugx.git
synced 2024-11-01 15:05:05 +01:00
104 lines
2.6 KiB
C++
104 lines
2.6 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
|
|
*
|
|
* BMC 42-in-1 reset switch
|
|
*/
|
|
|
|
#include "mapinc.h"
|
|
|
|
static uint8 bank_mode;
|
|
static uint8 bank_value;
|
|
static uint8 prgb[4];
|
|
static SFORMAT StateRegs[]=
|
|
{
|
|
{0}
|
|
};
|
|
|
|
static void Sync(void)
|
|
{
|
|
FCEU_printf("%02x: %02x %02x\n", bank_mode, bank_value, prgb[0]);
|
|
switch(bank_mode&7)
|
|
{
|
|
case 0:
|
|
setprg32(0x8000,bank_value&7); break;
|
|
case 1:
|
|
setprg16(0x8000,((8+(bank_value&7))>>1)+prgb[1]);
|
|
setprg16(0xC000,(bank_value&7)>>1);
|
|
case 4:
|
|
setprg32(0x8000,8+(bank_value&7)); break;
|
|
case 5:
|
|
setprg16(0x8000,((8+(bank_value&7))>>1)+prgb[1]);
|
|
setprg16(0xC000,((8+(bank_value&7))>>1)+prgb[3]);
|
|
case 2:
|
|
setprg8(0x8000,prgb[0]>>2);
|
|
setprg8(0xa000,prgb[1]);
|
|
setprg8(0xc000,prgb[2]);
|
|
setprg8(0xe000,~0);
|
|
break;
|
|
case 3:
|
|
setprg8(0x8000,prgb[0]);
|
|
setprg8(0xa000,prgb[1]);
|
|
setprg8(0xc000,prgb[2]);
|
|
setprg8(0xe000,prgb[3]);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static DECLFW(BMC13in1JY110Write)
|
|
{
|
|
FCEU_printf("%04x:%04x\n",A,V);
|
|
switch(A)
|
|
{
|
|
case 0x8000:
|
|
case 0x8001:
|
|
case 0x8002:
|
|
case 0x8003: prgb[A&3]=V; break;
|
|
case 0xD000: bank_mode=V; break;
|
|
case 0xD001: setmirror(V&3);
|
|
case 0xD002: break;
|
|
case 0xD003: bank_value=V; break;
|
|
}
|
|
Sync();
|
|
}
|
|
|
|
static void BMC13in1JY110Power(void)
|
|
{
|
|
prgb[0]=prgb[1]=prgb[2]=prgb[3]=0;
|
|
bank_mode=0;
|
|
bank_value=0;
|
|
setprg32(0x8000,0);
|
|
setchr8(0);
|
|
SetWriteHandler(0x8000,0xFFFF,BMC13in1JY110Write);
|
|
SetReadHandler(0x8000,0xFFFF,CartBR);
|
|
}
|
|
|
|
static void StateRestore(int version)
|
|
{
|
|
Sync();
|
|
}
|
|
|
|
void BMC13in1JY110_Init(CartInfo *info)
|
|
{
|
|
info->Power=BMC13in1JY110Power;
|
|
AddExState(&StateRegs, ~0, 0, 0);
|
|
GameStateRestore=StateRestore;
|
|
}
|
|
|
|
|