429f6c4545
- fixes (if necessary), update and cleanup the following boards that now dont need alternate mappings: - this is part of migrating unif to be usuable in ines mappers - boards affected in this commit are: SUPERVISION16IN1, GS-2004, GS-2013, UNL-SMB2J, MARIO1-MALEE2, UNL-SA-9602B, UNL-KS106C / RESETNROM-XIN1 UNL-AC08, NES-NTBROM, BMC-K-3033, BMC-GN-26, BMC-GHOSTBUSTERS63IN1, BMC-830425C-4391T BMC-830134C, BMC-891227 / BMC-CTC-12IN1, BMC-JC-016-2, UNL-T4A54A, UNL-8157, BMC-T-262 (might have forgotten to list some...)
71 lines
2.1 KiB
C
71 lines
2.1 KiB
C
/* FCEUmm - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2019 Libretro Team
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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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/* NES 2.0 Mapper 315
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* BMC-830134C
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* Used for multicarts using 820732C- and 830134C-numbered PCBs such as 4-in-1 Street Blaster 5
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* http://wiki.nesdev.com/w/index.php/NES_2.0_Mapper_315
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*/
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#include "mapinc.h"
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#include "mmc3.h"
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static void BMC830134CCW(uint32 A, uint8 V) {
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setchr1(A, (V & 0xFF) | ((EXPREGS[0] & 0x01) << 8) | ((EXPREGS[0] & 0x02) << 6) | ((EXPREGS[0] & 0x08) << 3));
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}
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static void BMC830134CPW(uint32 A, uint8 V) {
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if ((EXPREGS[0] & 0x06) == 0x06) {
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if (A == 0x8000) {
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setprg8(A, (V & 0x0F) | ((EXPREGS[0] & 0x06) << 3));
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setprg8(0xC000, (V & 0x0F) | 0x32);
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} else if (A == 0xA000) {
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setprg8(A, (V & 0x0F) | ((EXPREGS[0] & 0x06) << 3));
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setprg8(0xE000, (V & 0x0F) | 0x32);
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}
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} else
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setprg8(A, (V & 0x0F) | ((EXPREGS[0] & 0x06) << 3));
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}
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static DECLFW(BMC830134CWrite) {
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EXPREGS[0] = V;
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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static void BMC830134CReset(void) {
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EXPREGS[0] = 0;
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MMC3RegReset();
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}
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static void BMC830134CPower(void) {
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GenMMC3Power();
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SetWriteHandler(0x6800, 0x68FF, BMC830134CWrite);
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}
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void BMC830134C_Init(CartInfo *info) {
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GenMMC3_Init(info, 128, 256, 1, 0);
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pwrap = BMC830134CPW;
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cwrap = BMC830134CCW;
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info->Power = BMC830134CPower;
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info->Reset = BMC830134CReset;
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AddExState(EXPREGS, 1, 0, "EXPR");
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}
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