91 lines
2.1 KiB
C
91 lines
2.1 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 preg, creg[4];
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static uint8 *WRAM = NULL;
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static SFORMAT StateRegs[] =
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{
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{ &preg, 1, "PREG" },
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{ creg, 4, "CREG" },
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{ 0 }
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};
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static void Sync(void) {
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setprg8r(0x10, 0x6000, 0);
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setprg16(0x8000, preg);
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setprg16(0xC000, 0);
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setchr2(0x0000, creg[0]);
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setchr2(0x0800, creg[1]);
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setchr2(0x1000, creg[2]);
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setchr2(0x1800, creg[3]);
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}
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static DECLFW(M190Write89) {
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preg = V & 7;
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Sync();
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}
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static DECLFW(M190WriteCD) {
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preg = 8 | (V & 7);
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Sync();
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}
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static DECLFW(M190WriteAB) {
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creg[A & 3] = V;
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Sync();
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}
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static void M190Power(void) {
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creg[0] = creg[1] = creg[2] = creg[3] = 0;
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preg = 0;
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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, M190Write89);
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SetWriteHandler(0xA000, 0xBFFF, M190WriteAB);
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SetWriteHandler(0xC000, 0xDFFF, M190WriteCD);
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setmirror(MI_V);
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Sync();
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}
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static void M190Close(void) {
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if (WRAM)
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FCEU_gfree(WRAM);
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WRAM = NULL;
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}
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static void StateRestore(int version) {
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Sync();
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}
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void Mapper190_Init(CartInfo *info) {
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info->Power = M190Power;
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info->Close = M190Close;
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WRAM = (uint8*)FCEU_gmalloc(0x2000);
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SetupCartPRGMapping(0x10, WRAM, 0x2000, 1);
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AddExState(WRAM, 0x2000, 0, "WRAM");
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GameStateRestore = StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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