mirror of
https://github.com/dborth/fceugx.git
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104 lines
2.4 KiB
C++
104 lines
2.4 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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* Mortal Kombat 2 YOKO */
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#include "mapinc.h"
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#include "mmc3.h"
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static uint8 reg[8];
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static SFORMAT StateRegs[]=
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{
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{reg, 8, "REGS"},
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{0}
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};
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static void Sync(void)
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{
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// FCEU_printf("(%02x, %02x)\n",reg[3],reg[4]);
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setprg8(0x8000,reg[0]);
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setprg8(0xA000,reg[1]);
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setprg8(0xC000,reg[2]);
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setprg8(0xE000,~0);
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// setchr2(0x0000,reg[3]);
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// setchr2(0x0800,reg[4]);
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// setchr2(0x1000,reg[5]);
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// setchr2(0x1800,reg[6]);
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setchr2(0x0000,reg[3]);
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setchr2(0x0800,reg[4]);
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setchr2(0x1000,reg[5]);
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setchr2(0x1800,reg[6]);
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}
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static DECLFW(MCN22MWrite)
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{
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//FCEU_printf("bs %04x %02x\n",A,V);
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switch(A)
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{
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case 0x8c00:
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case 0x8c01:
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case 0x8c02: reg[A&3]=V; break;
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case 0x8d10: reg[3]=V; break;
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case 0x8d11: reg[4]=V; break;
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case 0x8d16: reg[5]=V; break;
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case 0x8d17: reg[6]=V; break;
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}
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Sync();
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}
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static void MCN22MPower(void)
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{
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reg[0]=reg[1]=reg[2]=0;
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Sync();
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SetReadHandler(0x8000,0xFFFF,CartBR);
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SetWriteHandler(0x8000,0xFFFF,MCN22MWrite);
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}
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/*
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static void MCN22MIRQHook(void)
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{
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int count = IRQCount;
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if(!count || IRQReload)
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{
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IRQCount = IRQLatch;
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IRQReload = 0;
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}
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else
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IRQCount--;
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if(!IRQCount)
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{
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if(IRQa)
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{
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X6502_IRQBegin(FCEU_IQEXT);
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}
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}
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}
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*/
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static void StateRestore(int version)
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{
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Sync();
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}
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void UNLCN22M_Init(CartInfo *info)
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{
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info->Power=MCN22MPower;
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// GameHBIRQHook=MCN22MIRQHook;
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GameStateRestore=StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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