68 lines
1.9 KiB
C
68 lines
1.9 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) 2020
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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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/* Mapper 395 - Realtec 8210
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* Super Card 12-in-1 (SPC002)
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* Super Card 13-in-1 (SPC003)
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* Super Card 14-in-1 (King006)
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* Super Card 14-in-1 (King007)
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*/
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#include "mapinc.h"
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#include "mmc3.h"
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static void M395CW(uint32 A, uint8 V) {
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uint8 mask = EXPREGS[1] & 0x40 ? 0x7F : 0xFF;
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setchr1(A, (V & mask) | ((EXPREGS[1] & 0x10) << 3) | ((EXPREGS[0] & 0x30) << 4) | ((EXPREGS[1] & 0x20) << 5));
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}
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static void M395PW(uint32 A, uint8 V) {
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uint8 mask = EXPREGS[1] & 8 ? 0x0F : 0x1F;
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setprg8(A, (V & mask) | ((EXPREGS[0] & 0x30) << 1) | ((EXPREGS[0] & 8) << 4) | ((EXPREGS[1] & 1) << 4));
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}
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static DECLFW(M395Write) {
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if (!(EXPREGS[1] & 0x80)) {
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EXPREGS[(A >> 4) & 1] = V;
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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}
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static void M395Reset(void) {
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EXPREGS[0] = EXPREGS[1] = 0;
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MMC3RegReset();
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}
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static void M395Power(void) {
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EXPREGS[0] = EXPREGS[1] = 0;
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GenMMC3Power();
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SetWriteHandler(0x6000, 0x7FFF, M395Write);
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}
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void Mapper395_Init(CartInfo *info) {
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GenMMC3_Init(info, 256, 256, 0, 0);
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cwrap = M395CW;
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pwrap = M395PW;
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info->Power = M395Power;
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info->Reset = M395Reset;
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AddExState(EXPREGS, 2, 0, "EXPR");
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}
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