109 lines
2.6 KiB
C++
109 lines
2.6 KiB
C++
/* FCE Ultra - NES/Famicom Emulator
|
|
*
|
|
* Copyright notice for this file:
|
|
* Copyright (C) 2006 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"
|
|
|
|
//mbg merge 7/17/06 - TODO CaH4e3 / does it make sense to #include mmc3.h here? it uses some vars from it..
|
|
//also, CaH4e3, discuss with me whether this implies that 0xA000 and 0xE000 can have their own 8k banks (
|
|
#include "mmc3.h"
|
|
//mbg merge 7/17/06 we get these externs from mmc3.h
|
|
//uint8 IRQCount,IRQLatch,IRQa;
|
|
//uint8 IRQReload;
|
|
|
|
static uint8 reg[8];
|
|
|
|
static SFORMAT StateRegs[]=
|
|
{
|
|
{reg, 8, "REGS"},
|
|
{0}
|
|
};
|
|
|
|
static void Sync(void)
|
|
{
|
|
// FCEU_printf("(%02x, %02x)\n",reg[3],reg[4]);
|
|
setprg8(0x8000,reg[0]);
|
|
setprg8(0xA000,reg[1]);
|
|
setprg8(0xC000,reg[2]);
|
|
setprg8(0xE000,~0);
|
|
// setchr2(0x0000,reg[3]);
|
|
// setchr2(0x0800,reg[4]);
|
|
// setchr2(0x1000,reg[5]);
|
|
// setchr2(0x1800,reg[6]);
|
|
setchr2(0x0000,reg[3]);
|
|
setchr2(0x0800,reg[4]);
|
|
setchr2(0x1000,reg[5]);
|
|
setchr2(0x1800,reg[6]);
|
|
}
|
|
|
|
static DECLFW(MCN22MWrite)
|
|
{
|
|
FCEU_printf("bs %04x %02x\n",A,V);
|
|
switch(A)
|
|
{
|
|
case 0x8c00:
|
|
case 0x8c01:
|
|
case 0x8c02: reg[A&3]=V; break;
|
|
case 0x8d10: reg[3]=V; break;
|
|
case 0x8d11: reg[4]=V; break;
|
|
case 0x8d16: reg[5]=V; break;
|
|
case 0x8d17: reg[6]=V; break;
|
|
}
|
|
Sync();
|
|
}
|
|
|
|
static void MCN22MPower(void)
|
|
{
|
|
Sync();
|
|
SetReadHandler(0x8000,0xFFFF,CartBR);
|
|
SetWriteHandler(0x8000,0xFFFF,MCN22MWrite);
|
|
}
|
|
/*
|
|
static void MCN22MIRQHook(void)
|
|
{
|
|
int count = IRQCount;
|
|
if(!count || IRQReload)
|
|
{
|
|
IRQCount = IRQLatch;
|
|
IRQReload = 0;
|
|
}
|
|
else
|
|
IRQCount--;
|
|
if(!IRQCount)
|
|
{
|
|
if(IRQa)
|
|
{
|
|
X6502_IRQBegin(FCEU_IQEXT);
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
static void StateRestore(int version)
|
|
{
|
|
Sync();
|
|
}
|
|
|
|
void UNLCN22M_Init(CartInfo *info)
|
|
{
|
|
info->Power=MCN22MPower;
|
|
// GameHBIRQHook=MCN22MIRQHook;
|
|
GameStateRestore=StateRestore;
|
|
AddExState(&StateRegs, ~0, 0, 0);
|
|
}
|