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110 lines
3.3 KiB
C++
110 lines
3.3 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) 2006 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 mappers, originally much complex banksitching
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*
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* 01-22111-000 (05-00002-010) (132, 22211) - MGC-001 Qi Wang
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* 01-22110-000 (52S ) - MGC-002 2-in-1 Gun
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* 01-22111-100 (02-00002-010) (173 ) - MGC-008 Mahjong Block
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* (079 ) - MGC-012 Poke Block
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* 01-22110-200 (05-00002-010) (036 ) - MGC-014 Strike Wolf
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* 01-22000-400 (05-00002-010) (036 ) - MGC-015 Policeman
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* 01-22017-000 (05-PT017-080) (189 ) - MGC-017 Thunder Warrior
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* 01-11160-000 (04-02310-000) ( , 11160) - MGC-023 6-in-1
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* 01-22270-000 (05-00002-010) (132, 22211) - MGC-xxx Creatom
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* 01-22200-400 (------------) (079 ) - ET.03 F-15 City War
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* (172 ) - 1991 Du Ma Racing
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*
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*/
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#include "mapinc.h"
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static uint8 reg[4], cmd, is172, is173;
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static SFORMAT StateRegs[] =
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{
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{ reg, 4, "REGS" },
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{ &cmd, 1, "CMD" },
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{ 0 }
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};
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static void Sync(void) {
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setprg32(0x8000, (reg[2] >> 2) & 1);
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if (is172)
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setchr8((((cmd ^ reg[2]) >> 3) & 2) | (((cmd ^ reg[2]) >> 5) & 1)); // 1991 DU MA Racing probably CHR bank sequence is WRONG, so it is possible to
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// rearrange CHR banks for normal UNIF board and mapper 172 is unneccessary
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else
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setchr8(reg[2] & 3);
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}
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static DECLFW(UNL22211WriteLo) {
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// FCEU_printf("bs %04x %02x\n",A,V);
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reg[A & 3] = V;
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}
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static DECLFW(UNL22211WriteHi) {
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// FCEU_printf("bs %04x %02x\n",A,V);
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cmd = V;
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Sync();
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}
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static DECLFR(UNL22211ReadLo) {
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return (reg[1] ^ reg[2]) | (is173 ? 0x01 : 0x40);
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// if(reg[3])
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// return reg[2];
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// else
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// return X.DB;
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}
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static void UNL22211Power(void) {
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Sync();
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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SetReadHandler(0x4100, 0x4100, UNL22211ReadLo);
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SetWriteHandler(0x4100, 0x4103, UNL22211WriteLo);
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SetWriteHandler(0x8000, 0xFFFF, UNL22211WriteHi);
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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 UNL22211_Init(CartInfo *info) {
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is172 = 0;
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is173 = 0;
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info->Power = UNL22211Power;
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GameStateRestore = StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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void Mapper172_Init(CartInfo *info) {
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is172 = 1;
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is173 = 0;
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info->Power = UNL22211Power;
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GameStateRestore = StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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void Mapper173_Init(CartInfo *info) {
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is172 = 0;
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is173 = 1;
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info->Power = UNL22211Power;
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GameStateRestore = StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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