74 lines
1.8 KiB
C
74 lines
1.8 KiB
C
/* FCEUmm - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2022
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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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* NES 2.0 Mapper 396 - BMC-830752C
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* 1995 Super 8-in-1 (JY-050 rev0)
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* Super 8-in-1 Gold Card Series (JY-085)
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* Super 8-in-1 Gold Card Series (JY-086)
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* 2-in-1 (GN-51)
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*/
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#include "mapinc.h"
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static uint8 reg[2];
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static void Sync (void) {
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setprg16(0x8000, reg[1] << 3 | reg[0] & 7);
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setprg16(0xC000, reg[1] << 3 | 7);
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setchr8(0);
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setmirror(reg[1] & 0x60 ? 0 : 1);
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}
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static DECLFW(M396WriteInnerBank) {
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reg[0] = V;
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Sync();
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}
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static DECLFW(M396WriteOuterBank) {
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reg[1] = V;
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Sync();
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}
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static void M396Reset(void) {
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reg[0] = 0x00;
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reg[1] = 0x00;
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Sync();
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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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static void M396Power(void) {
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reg[0] = 0x00;
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reg[1] = 0x00;
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Sync();
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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SetWriteHandler(0x8000, 0x9FFF, M396WriteInnerBank);
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SetWriteHandler(0xA000, 0xBFFF, M396WriteOuterBank);
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SetWriteHandler(0xC000, 0xFFFF, M396WriteInnerBank);
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}
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void Mapper396_Init(CartInfo *info) {
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info->Power = M396Power;
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info->Reset = M396Reset;
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GameStateRestore = StateRestore;
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AddExState(reg, 2, 0, "REGS");
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}
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