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/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 1998 BERO
* 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 latche;
static DECLFW(Mapper34_write)
{
switch(A)
{
case 0x7FFD:ROM_BANK32(V);break;
case 0x7FFE:VROM_BANK4(0x0000,V);break;
case 0x7fff:VROM_BANK4(0x1000,V);break;
}
if(A>=0x8000)
ROM_BANK32(V);
}
void Mapper34_init(void)
{
ROM_BANK32(0);
SetWriteHandler(0x7ffd,0xffff,Mapper34_write);
}
/* I might want to add some code to the mapper 96 PPU hook function
to not change CHR banks if the attribute table is being accessed,
if I make emulation a little more accurate in the future.
*/
static uint8 M96LA;
static DECLFW(Mapper96_write)
{
latche=V;
setprg32(0x8000,V&3);
setchr4r(0x10,0x0000,(latche&4)|M96LA);
setchr4r(0x10,0x1000,(latche&4)|3);
}
static void FP_FASTAPASS(1) M96Hook(uint32 A)
{
if((A&0x3000)!=0x2000) return;
//if((A&0x3ff)>=0x3c0) return;
M96LA=(A>>8)&3;
setchr4r(0x10,0x0000,(latche&4)|M96LA);
}
static void M96Sync(int v)
{
setprg32(0x8000,latche&3);
setchr4r(0x10,0x0000,(latche&4)|M96LA);
setchr4r(0x10,0x1000,(latche&4)|3);
}
void Mapper96_init(void)
{
SetWriteHandler(0x8000,0xffff,Mapper96_write);
PPU_hook=M96Hook;
AddExState(&latche, 1, 0, "LATC");
AddExState(&M96LA, 1, 0, "LAVA");
SetupCartCHRMapping(0x10, MapperExRAM, 32768, 1);
latche=M96LA=0;
M96Sync(0);
setmirror(MI_0);
GameStateRestore=M96Sync;
}
static DECLFW(M156Write)
{
if(A>=0xc000 && A<=0xC003)
VROM_BANK1((A&3)*1024,V);
else if(A>=0xc008 && A<=0xc00b)
VROM_BANK1(0x1000+(A&3)*1024,V);
if(A==0xc010) ROM_BANK16(0x8000,V);
// printf("$%04x:$%02x\n",A,V);
}
void Mapper156_init(void)
{
onemir(0);
SetWriteHandler(0xc000,0xc010,M156Write);
}
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