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>
83 lines
2.1 KiB
C
83 lines
2.1 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) 2005 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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*/
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#include "mapinc.h"
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static uint8 regs[2];
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static uint8 hrd_flag;
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static SFORMAT StateRegs[] =
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{
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{ &hrd_flag, 1, "DPSW" },
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{ regs, 2, "REGS" },
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{ 0 }
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};
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static void Sync(void) {
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if (regs[1] & 0x10)
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setprg32(0x8000, (regs[1] >> 6) & 3);
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else {
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setprg16(0x8000, (regs[1] >> 5) & 7);
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setprg16(0xC000, (regs[1] >> 5) & 7);
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}
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setmirror((regs[1] & 8) >> 3 ^ 1);
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setchr8((regs[0] & 7) | (regs[1] & 7) | ((regs[0] & 0x40) >> 3));
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}
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static DECLFR(M57Read) {
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return hrd_flag;
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}
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static DECLFW(M57Write) {
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switch (A & 0x8800) {
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case 0x8000: regs[0] = V; Sync(); break;
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case 0x8800: regs[1] = V; Sync(); break;
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}
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}
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static void M57Power(void) {
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regs[1] = regs[0] = 0; /* Always reset to menu */
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hrd_flag = 1; /* YH-xxx "Olympic" multicarts disable the menu after one selection */
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SetReadHandler(0x8000, 0xFFFF, CartBR);
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SetWriteHandler(0x8000, 0xFFFF, M57Write);
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SetReadHandler(0x6000, 0x6000, M57Read);
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Sync();
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}
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static void M57Reset(void) {
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regs[1] = regs[0] = 0; /* Always reset to menu */
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hrd_flag++;
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hrd_flag &= 3;
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FCEU_printf("Select Register = %02x\n", hrd_flag);
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Sync();
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}
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static void StateRestore(int version) {
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Sync();
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}
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void Mapper57_Init(CartInfo *info) {
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info->Power = M57Power;
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info->Reset = M57Reset;
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GameStateRestore = StateRestore;
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AddExState(&StateRegs, ~0, 0, 0);
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}
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