2012-12-14 18:18:20 +01:00
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/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2012 CaH4e3
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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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* TXC/Micro Genius simplified mapper
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*/
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#include "mapinc.h"
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2018-08-13 17:04:20 +02:00
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static uint8 latche, mirr;
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2012-12-14 18:18:20 +01:00
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static SFORMAT StateRegs[] =
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{
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{ &latche, 1, "LATC" },
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2018-08-13 17:04:20 +02:00
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{ &mirr, 1, "MIRR" },
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2012-12-14 18:18:20 +01:00
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{ 0 }
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};
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static void Sync(void) {
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setprg32(0x8000, latche >> 4);
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setchr8(latche & 0xf);
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}
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static DECLFW(M36Write) {
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2018-08-13 17:04:20 +02:00
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switch((A>>12)&7) { // need to 4-in-1 MGC-26 BMC, doesnt break other games though
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case 0: mirr = MI_V; setmirror(mirr); break;
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case 4: mirr = MI_H; setmirror(mirr); break;
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}
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2012-12-14 18:18:20 +01:00
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latche = V;
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Sync();
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}
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static DECLFR(M36Read) {
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return latche; // Need by Strike Wolf, being simplified mapper, this cart still uses some TCX mapper features andrely on it
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}
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static void M36Power(void) {
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latche = 0;
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Sync();
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SetReadHandler(0x4100, 0x4100, M36Read);
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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SetWriteHandler(0x8000, 0xFFFE, M36Write); // Actually, BUS conflict there preventing from triggering the wrong banks
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}
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static void M36Restore(int version) {
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Sync();
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}
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void Mapper36_Init(CartInfo *info) {
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info->Power = M36Power;
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GameStateRestore = M36Restore;
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AddExState(StateRegs, ~0, 0, 0);
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}
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