mirror of
https://github.com/dborth/fceugx.git
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80 lines
2.0 KiB
C++
80 lines
2.0 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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#include "mapinc.h"
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#include "mmc3.h"
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static uint8 *CHRRAM;
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static uint8 tekker;
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static void MSHCW(uint32 A, uint8 V) {
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if (EXPREGS[0] & 0x40)
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setchr8r(0x10, 0);
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else{
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if (A < 0x800)
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setchr1(A, V | ((EXPREGS[0] & 8) << 5));
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else if (A < 0x1000)
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setchr1(A, V | ((EXPREGS[0] & 4) << 6));
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else if (A < 0x1800)
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setchr1(A, V | ((EXPREGS[0] & 1) << 8));
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else
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setchr1(A, V | ((EXPREGS[0] & 2) << 7));
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}
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}
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static DECLFW(MSHWrite) {
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EXPREGS[0] = V;
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FixMMC3CHR(MMC3_cmd);
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}
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static DECLFR(MSHRead) {
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return(tekker);
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}
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static void MSHReset(void) {
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MMC3RegReset();
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tekker ^= 0xFF;
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}
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static void MSHPower(void) {
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tekker = 0x00;
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GenMMC3Power();
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SetWriteHandler(0x4100, 0x4100, MSHWrite);
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SetReadHandler(0x4100, 0x4100, MSHRead);
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}
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static void MSHClose(void) {
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if (CHRRAM)
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FCEU_gfree(CHRRAM);
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CHRRAM = NULL;
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}
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void UNLSHeroes_Init(CartInfo *info) {
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GenMMC3_Init(info, 256, 512, 0, 0);
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cwrap = MSHCW;
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info->Power = MSHPower;
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info->Reset = MSHReset;
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info->Close = MSHClose;
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CHRRAM = (uint8*)FCEU_gmalloc(8192);
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SetupCartCHRMapping(0x10, CHRRAM, 8192, 1);
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AddExState(EXPREGS, 4, 0, "EXPR");
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AddExState(&tekker, 1, 0, "DIPSW");
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}
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