mirror of
https://github.com/dborth/fceugx.git
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98 lines
2.6 KiB
C++
98 lines
2.6 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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* Dragon Ball Z 2 - Gekishin Freeza! (C)
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* Dragon Ball Z Gaiden - Saiya Jin Zetsumetsu Keikaku (C)
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* San Guo Zhi 2 (C)
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*
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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 = NULL;
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static uint32 CHRRAMSIZE;
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static void M199PW(uint32 A, uint8 V) {
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setprg8(A, V);
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setprg8(0xC000, EXPREGS[0]);
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setprg8(0xE000, EXPREGS[1]);
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}
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static void M199CW(uint32 A, uint8 V) {
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setchr1r((V < 8) ? 0x10 : 0x00, A, V);
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setchr1r((DRegBuf[0] < 8) ? 0x10 : 0x00, 0x0000, DRegBuf[0]);
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setchr1r((EXPREGS[2] < 8) ? 0x10 : 0x00, 0x0400, EXPREGS[2]);
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setchr1r((DRegBuf[1] < 8) ? 0x10 : 0x00, 0x0800, DRegBuf[1]);
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setchr1r((EXPREGS[3] < 8) ? 0x10 : 0x00, 0x0c00, EXPREGS[3]);
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}
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static void M199MW(uint8 V) {
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// FCEU_printf("%02x\n",V);
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switch (V & 3) {
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case 0: setmirror(MI_V); break;
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case 1: setmirror(MI_H); break;
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case 2: setmirror(MI_0); break;
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case 3: setmirror(MI_1); break;
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}
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}
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static DECLFW(M199Write) {
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if ((A == 0x8001) && (MMC3_cmd & 8)) {
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EXPREGS[MMC3_cmd & 3] = V;
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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} else
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if (A < 0xC000)
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MMC3_CMDWrite(A, V);
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else
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MMC3_IRQWrite(A, V);
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}
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static void M199Power(void) {
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EXPREGS[0] = ~1;
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EXPREGS[1] = ~0;
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EXPREGS[2] = 1;
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EXPREGS[3] = 3;
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GenMMC3Power();
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SetWriteHandler(0x8000, 0xFFFF, M199Write);
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}
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static void M199Close(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 Mapper199_Init(CartInfo *info) {
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GenMMC3_Init(info, 512, 256, 8, info->battery);
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cwrap = M199CW;
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pwrap = M199PW;
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mwrap = M199MW;
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info->Power = M199Power;
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info->Close = M199Close;
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CHRRAMSIZE = 8192;
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CHRRAM = (uint8*)FCEU_gmalloc(CHRRAMSIZE);
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SetupCartCHRMapping(0x10, CHRRAM, CHRRAMSIZE, 1);
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AddExState(CHRRAM, CHRRAMSIZE, 0, "CHRR");
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AddExState(EXPREGS, 4, 0, "EXPR");
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}
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