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https://github.com/dborth/fceugx.git
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69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
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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) 2013 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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#include "mapinc.h"
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static uint16 latche;
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static SFORMAT StateRegs[] =
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{
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{ &latche, 2, "LATC" },
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{ 0 }
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};
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static void Sync(void) {
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setprg32(0x8000, 0);
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if(CHRsize[0] == 8192) {
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setchr4(0x0000, latche & 1);
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setchr4(0x1000, latche & 1);
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} else {
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setchr8(latche & 1); // actually, my bad, overdumped roms, the real CHR size if 8K
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}
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setmirror(MI_0 + (latche & 1));
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}
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static DECLFW(UNLCC21Write1) {
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latche = A;
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Sync();
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}
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static DECLFW(UNLCC21Write2) {
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latche = V;
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Sync();
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}
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static void UNLCC21Power(void) {
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latche = 0;
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Sync();
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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SetWriteHandler(0x8001, 0xFFFF, UNLCC21Write1);
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SetWriteHandler(0x8000, 0x8000, UNLCC21Write2); // another one many-in-1 mapper, there is a lot of similar carts with little different wirings
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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 UNLCC21_Init(CartInfo *info) {
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info->Power = UNLCC21Power;
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GameStateRestore = StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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