d72c64e5d9
* Support 2 MIB mapper 314 (Y2K 76-in-1) * Mapper 57: Forgot one Sync() statement * Mapper 83: Correction for 256 KiB PRG+512 KiB CHR games * Mapper 114: Use NES 2.0 submapper field if available to differentiate between scrambling patterns * NES 2.0: Support exponential notation of PRG/CHR sizes, thus adding support for 4 KiB and 8 KiB ROM files. * Add mapper 553. * Correct the database regarding the Nanjing game Pegasus Senya * Add submapper 5 (HST-162) to mapper 176 * Add mapper 436 * Mapper 176.5 has a CNROM latch as well, though it works a bit differently than submapper 1's * Added mapper 429 * Added mapper 380 submapper 1 * Added mapper 437 * Added mapper 456 * Forgot to include math.h for pow * Added mapper 434 * Added mapper 452 * Added mapper 438 * Added mappers 391 and 444, corrected the mixup with BS-110 and NC7000M * Added mapper 443. Added menu-switching funcionality to mapper 444 Co-authored-by: NewRisingSun <8vytz1+dhp372pv94ebg@sharklasers.com>
82 lines
2.4 KiB
C
82 lines
2.4 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) 2020 negativeExponent
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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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/* NC7000M PCB, with incorrect UNIF MAPR BS-110 due to a mix-up. Submappers denote the setting of two solder pads that configure CHR banking. */
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#include "mapinc.h"
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#include "mmc3.h"
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static uint8 pads;
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static uint8 dip;
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static void Mapper444_PRGWrap(uint32 A, uint8 V) {
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int prgAND =0x0F;
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int prgOR =EXPREGS[0] <<4;
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if (EXPREGS[0] &0x04) {
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if (~A &0x4000) {
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setprg8(A, (~EXPREGS[0] &0x08? ~2: ~0) &V &prgAND | prgOR &~prgAND);
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setprg8(A |0x4000, (~EXPREGS[0] &0x08? 2: 0) |V &prgAND | prgOR &~prgAND);
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}
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} else
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setprg8(A, V &prgAND | prgOR &~prgAND);
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}
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static void Mapper444_CHRWrap(uint32 A, uint8 V) {
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int chrAND =pads &1? 0xFF: 0x7F;
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int chrOR =EXPREGS[0] <<7 &(pads &1? 0x00: 0x80) | EXPREGS[0] <<(pads &2? 4: 7) &0x100;
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setchr1(A, V &chrAND | chrOR &~chrAND);
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}
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static DECLFR(Mapper444_Read) {
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return (EXPREGS[0] &0x0C) ==0x08? dip: CartBR(A);
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}
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static DECLFW(Mapper444_Write) {
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EXPREGS[0] =A &0xFF;
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FixMMC3PRG(MMC3_cmd);
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FixMMC3CHR(MMC3_cmd);
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}
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static void Mapper444_Reset(void) {
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dip++;
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dip &= 3;
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EXPREGS[0] =0;
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MMC3RegReset();
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}
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static void Mapper444_Power(void) {
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dip =0;
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EXPREGS[0] =0;
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GenMMC3Power();
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SetWriteHandler(0x6000, 0x7FFF, Mapper444_Write);
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SetReadHandler(0x8000, 0xFFFF, Mapper444_Read);
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}
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void Mapper444_Init(CartInfo *info) {
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pads = info->submapper; /* UNIF represents submapper 0 */
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GenMMC3_Init(info, 256, 256, 0, 0);
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cwrap = Mapper444_CHRWrap;
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pwrap = Mapper444_PRGWrap;
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info->Power = Mapper444_Power;
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info->Reset = Mapper444_Reset;
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AddExState(EXPREGS, 1, 0, "EXPR");
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AddExState(&dip, 1, 0, "DIPS");
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}
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