mirror of
https://github.com/dborth/fceugx.git
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86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright (C) 2017 FCEUX Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Magic Kid GooGoo
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*/
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#include "mapinc.h"
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static uint8 prgr, chrr[4];
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static uint8 *WRAM = NULL;
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static void Mapper190_Sync(void) {
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setprg8r(0x10, 0x6000, 0);
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setprg16(0x8000, prgr);
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setprg16(0xC000, 0);
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setchr2(0x0000, chrr[0]);
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setchr2(0x0800, chrr[1]);
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setchr2(0x1000, chrr[2]);
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setchr2(0x1800, chrr[3]);
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}
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static DECLFW(Mapper190_Write89) { prgr = V&7; Mapper190_Sync(); }
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static DECLFW(Mapper190_WriteCD) { prgr = 8|(V&7); Mapper190_Sync(); }
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static DECLFW(Mapper190_WriteAB) {
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int bank = A&3;
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chrr[bank] = V&63;
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Mapper190_Sync();
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}
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static void Mapper190_Power(void) {
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FCEU_CheatAddRAM(0x2000 >> 10, 0x6000, WRAM);
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SetReadHandler(0x6000, 0xFFFF, CartBR);
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SetWriteHandler(0x6000, 0x7FFF, CartBW);
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SetWriteHandler(0x8000, 0x9FFF, Mapper190_Write89);
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SetWriteHandler(0xA000, 0xBFFF, Mapper190_WriteAB);
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SetWriteHandler(0xC000, 0xDFFF, Mapper190_WriteCD);
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Mapper190_Sync();
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setmirror(MI_V);
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}
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static void Mapper190_Close(void) {
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FCEU_gfree(WRAM);
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WRAM = NULL;
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}
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static void Mapper190_Restore(int) {
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Mapper190_Sync();
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}
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void Mapper190_Init(CartInfo *info) {
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info->Power = Mapper190_Power;
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info->Close = Mapper190_Close;
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GameStateRestore = Mapper190_Restore;
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WRAM = (uint8*)FCEU_gmalloc(0x2000);
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SetupCartPRGMapping(0x10, WRAM, 0x2000, 1);
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chrr[0] = chrr[1] = chrr[2] = chrr[3] = prgr = 0;
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AddExState(&prgr, 1, 0, "PRGR");
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AddExState(chrr, 4, 0, "CHRR");
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AddExState(WRAM, 0x2000, 0, "WRAM");
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}
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