fceugx/source/fceultra/boards/190.cpp
2018-08-13 09:05:50 -06:00

86 lines
2.2 KiB
C++

/* FCE Ultra - NES/Famicom Emulator
*
* Copyright (C) 2017 FCEUX Team
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Magic Kid GooGoo
*/
#include "mapinc.h"
static uint8 prgr, chrr[4];
static uint8 *WRAM = NULL;
static void Mapper190_Sync(void) {
setprg8r(0x10, 0x6000, 0);
setprg16(0x8000, prgr);
setprg16(0xC000, 0);
setchr2(0x0000, chrr[0]);
setchr2(0x0800, chrr[1]);
setchr2(0x1000, chrr[2]);
setchr2(0x1800, chrr[3]);
}
static DECLFW(Mapper190_Write89) { prgr = V&7; Mapper190_Sync(); }
static DECLFW(Mapper190_WriteCD) { prgr = 8|(V&7); Mapper190_Sync(); }
static DECLFW(Mapper190_WriteAB) {
int bank = A&3;
chrr[bank] = V&63;
Mapper190_Sync();
}
static void Mapper190_Power(void) {
FCEU_CheatAddRAM(0x2000 >> 10, 0x6000, WRAM);
SetReadHandler(0x6000, 0xFFFF, CartBR);
SetWriteHandler(0x6000, 0x7FFF, CartBW);
SetWriteHandler(0x8000, 0x9FFF, Mapper190_Write89);
SetWriteHandler(0xA000, 0xBFFF, Mapper190_WriteAB);
SetWriteHandler(0xC000, 0xDFFF, Mapper190_WriteCD);
Mapper190_Sync();
setmirror(MI_V);
}
static void Mapper190_Close(void) {
FCEU_gfree(WRAM);
WRAM = NULL;
}
static void Mapper190_Restore(int) {
Mapper190_Sync();
}
void Mapper190_Init(CartInfo *info) {
info->Power = Mapper190_Power;
info->Close = Mapper190_Close;
GameStateRestore = Mapper190_Restore;
WRAM = (uint8*)FCEU_gmalloc(0x2000);
SetupCartPRGMapping(0x10, WRAM, 0x2000, 1);
chrr[0] = chrr[1] = chrr[2] = chrr[3] = prgr = 0;
AddExState(&prgr, 1, 0, "PRGR");
AddExState(chrr, 4, 0, "CHRR");
AddExState(WRAM, 0x2000, 0, "WRAM");
}