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...)
94 lines
2.8 KiB
C
94 lines
2.8 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 322
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* BMC-K-3033
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* 35-in-1 (K-3033)
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* http://wiki.nesdev.com/w/index.php/NES_2.0_Mapper_322
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*/
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#include "mapinc.h"
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#include "mmc3.h"
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static void BMCK3033CW(uint32 A, uint8 V) {
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if (EXPREGS[2]) {
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if (EXPREGS[3]) {
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/* FCEU_printf("MMC3-256: A:%04x V:%02x R1:%02x\n", A, V, EXPREGS[1]); */
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setchr1(A, (EXPREGS[1] << 8) | (V & 0xFF));
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} else {
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/* FCEU_printf("MMC3-128: A:%04x V:%02x R1:%02x\n", A, V, EXPREGS[1]); */
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setchr1(A, (EXPREGS[1] << 7) | (V & 0x7F));
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}
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} else {
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/* FCEU_printf("NROM: A:%04x V:%02x R1:%02x\n", A, V, EXPREGS[1]); */
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setchr1(A, (V & 0x7F));
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}
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}
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static void BMCK3033PW(uint32 A, uint8 V) {
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if (EXPREGS[2]) {
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if (EXPREGS[3] ) {
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/* FCEU_printf("MMC3-256 A:%04x V:%02x chip:%02x\n", A, V, EXPREGS[1] & ~0x01); */
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setprg8(A, (EXPREGS[1] << 5) | (V & 0x1F));
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} else {
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/* FCEU_printf("MMC3-128 A:%04x V:%02x chip:%02x\n", A, V, EXPREGS[1]); */
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setprg8(A, (EXPREGS[1] << 4) | (V & 0x0F));
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}
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} else {
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uint32 base = (EXPREGS[1] << 3);
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if (EXPREGS[0] & 0x03) {
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/* FCEU_printf("NROM-256 base:%02x chip:%02x\n", EXPREGS[0] >> 1, EXPREGS[1]); */
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setprg32(0x8000, base | EXPREGS[0] >> 1);
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} else {
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/* FCEU_printf("NROM-128 base:%02x chip:%02x\n", EXPREGS[0], EXPREGS[1]); */
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setprg16(0x8000, base | EXPREGS[0]);
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setprg16(0xC000, base | EXPREGS[0]);
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}
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}
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}
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static DECLFW(BMCK3033Write) {
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EXPREGS[0] = (A & 0x07);
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EXPREGS[1] = ((A & 0x18) >> 3) | ((A & 0x40) >> 4);
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EXPREGS[2] = (A & 0x20);
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EXPREGS[3] = (A & 0x80);
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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static void BMCK3033Power(void) {
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GenMMC3Power();
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SetWriteHandler(0x6000, 0x7FFF, BMCK3033Write);
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}
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static void BMCK3033Reset(void) {
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EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
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MMC3RegReset();
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}
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void BMCK3033_Init(CartInfo *info) {
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GenMMC3_Init(info, 256, 256, 1, 0);
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pwrap = BMCK3033PW;
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cwrap = BMCK3033CW;
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info->Power = BMCK3033Power;
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info->Reset = BMCK3033Reset;
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AddExState(EXPREGS, 4, 0, "EXPR");
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}
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