65 lines
1.8 KiB
C
65 lines
1.8 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) 2025 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_vrc2and4.h"
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#include "eeprom_93Cx6.h"
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static uint8 eeprom_data[256];
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static SFORMAT stateRegs[] ={
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{ eeprom_data, 256, "EEPR" },
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{ 0 }
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};
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static void sync () {
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setprg16(0x8000, VRC24_getPRGBank(1));
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setprg16(0xC000, 0xFF);
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VRC24_syncCHR(0x1FF, 0x000);
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VRC24_syncMirror();
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}
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static DECLFR (readEEPROM) {
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return eeprom_93Cx6_read()? 0x01: 0x00;
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}
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static DECLFW (writeEEPROM) {
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eeprom_93Cx6_write(A &0x04, A &0x02, A &0x01);
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}
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static void power (void) {
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VRC24_power();
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eeprom_93Cx6_init(256, 16);
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SetReadHandler(0x5000, 0x5FFF, readEEPROM);
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SetWriteHandler(0xF800, 0xFFFF, writeEEPROM);
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}
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void UNLT230_Init (CartInfo *info) {
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VRC4_init(info, sync, 0x04, 0x08, 1, NULL, NULL, NULL, NULL, NULL);
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if (info->PRGRamSaveSize) {
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info->Power =power;
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AddExState(stateRegs, ~0, 0, 0);
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eeprom_93Cx6_storage = eeprom_data;
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info->battery = 1;
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info->SaveGame[0] = eeprom_data;
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info->SaveGameLen[0] = 256;
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}
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}
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