71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2026 NewRisingSun
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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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#include "mapinc.h"
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#include "asic_mmc1.h"
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#include "asic_mmc3.h"
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static uint8 reg;
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static void sync (void) {
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if (reg &0x01) {
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MMC3_syncPRG(0x0F, reg <<4);
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MMC3_syncCHR(0x7F, reg <<7);
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MMC3_syncMirror();
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} else {
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MMC1_syncPRG(0x07, reg <<3);
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MMC1_syncCHR(0x1F, reg <<5);
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MMC1_syncMirror();
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}
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}
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static void applyMode (uint8 clear) {
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PPU_hook = NULL;
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MapIRQHook = NULL;
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GameHBIRQHook = NULL;
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if (reg &0x01)
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MMC3_activate(clear, sync, MMC3_TYPE_AX5202P, NULL, NULL, NULL, NULL);
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else
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MMC1_activate(clear, sync, MMC1_TYPE_MMC1B, NULL, NULL, NULL, NULL);
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}
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static void reset (void) {
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reg++;
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applyMode(1);
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}
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static void power (void) {
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reg = 0;
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applyMode(1);
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}
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static void restore (int version) {
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applyMode(0);
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}
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void Mapper613_Init (CartInfo *info) {
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MMC1_addExState();
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MMC3_addExState();
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info->Reset = reset;
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info->Power = power;
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GameStateRestore = restore;
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AddExState(®, 1, 0, "EXPR");
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}
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