mirror of
https://github.com/dborth/fceugx.git
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92 lines
2.9 KiB
C++
92 lines
2.9 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) 2007-2008 Mad Dumper, 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* Panda prince pirate.
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* MK4, MK6, A9711 board, MAPPER 187 the same!
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* UNL6035052_Init seems to be the same too, but with prot array in reverse
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*/
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#include "mapinc.h"
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#include "mmc3.h"
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static uint8 readbyte = 0;
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static DECLFW(M121Write)
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{
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// FCEU_printf("write: %04x:%04x\n",A&0xE003,V);
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if((A&0xF003)==0x8003)
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{
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// FCEU_printf(" prot write");
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// FCEU_printf("write: %04x:%04x\n",A,V);
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if (V==0xAB) setprg8(0xE000,7);
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else if(V==0x26) setprg8(0xE000,8);
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// else if(V==0x26) setprg8(0xE000,1); // MK3
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// else if(V==0x26) setprg8(0xE000,0x15); // sonic 3D blast, 8003 - command (0x26), 8001 - data 0x2A (<<1 = 0x15)
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else if(V==0xFF) setprg8(0xE000,9);
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else if(V==0x28) setprg8(0xC000,0xC);
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else if(V==0xEC) setprg8(0xE000,0xD);
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// else if(V==0xEC) setprg8(0xE000,0xC);//MK3
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else if(V==0xEF) setprg8(0xE000,0xD); // damn mess, need real hardware to figure out bankswitching
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else if(V==0x2A) setprg8(0xA000,0x0E);
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// else if(V==0x2A) setprg8(0xE000,0x0C); // MK3
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else if(V==0x20) setprg8(0xE000,0x13);
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else if(V==0x29) setprg8(0xE000,0x1B);
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else
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{
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// FCEU_printf(" unknown");
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FixMMC3PRG(MMC3_cmd);
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MMC3_CMDWrite(A,V);
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}
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// FCEU_printf("\n");
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}
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else
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{
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// FixMMC3PRG(MMC3_cmd);
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MMC3_CMDWrite(A,V);
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}
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}
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static uint8 prot_array[16] = { 0x83, 0x83, 0x42, 0x00 };
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static DECLFW(M121LoWrite)
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{
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EXPREGS[0] = prot_array[V&3]; // 0x100 bit in address seems to be switch arrays 0, 2, 2, 3 (Contra Fighter)
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// FCEU_printf("write: %04x:%04x\n",A,V);
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}
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static DECLFR(M121Read)
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{
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// FCEU_printf("read: %04x\n",A);
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return EXPREGS[0];
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}
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static void M121Power(void)
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{
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GenMMC3Power();
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// Write_IRQFM(0x4017,0x40);
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SetReadHandler(0x5000,0x5FFF,M121Read);
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SetWriteHandler(0x5000,0x5FFF,M121LoWrite);
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SetWriteHandler(0x8000,0x9FFF,M121Write);
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}
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void Mapper121_Init(CartInfo *info)
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{
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GenMMC3_Init(info, 128, 256, 8, 0);
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info->Power=M121Power;
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AddExState(EXPREGS, 2, 0, "EXPR");
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}
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