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Add mapper 451.

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NewRisingSun
2025-04-25 00:12:05 +02:00
committed by LibretroAdmin
parent a8b7a63536
commit f170f77954
3 changed files with 71 additions and 0 deletions
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69
src/boards/451.c Normal file
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@@ -0,0 +1,69 @@
/* FCEUmm - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2025 NewRisingSun
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Missing feature: MP3 playback, used by Haratyler MP */
#include "mapinc.h"
#include "mmc3.h"
#include "flashrom.h"
static void PRGWrap(uint32 A, uint8 V) {
if (A ==0x8000) V =0x00; else
if (A ==0xE000) V =0x30;
setprg8(A, V);
}
static DECLFW(Write) {
flashrom_write(A &0x1FFF | (Page[A >>11] +A -PRGptr[0]) &~0x1FFF, V);
switch (A &0xE000) {
case 0xA000: MMC3_CMDWrite(0xA000, A &1);
break;
case 0xC000: MMC3_IRQWrite(0xC000, (A &0xFF) -1),
MMC3_IRQWrite(0xC001, 0);
MMC3_IRQWrite((A &0xFF) ==0xFF? 0xE000: 0xE001, 0);
break;
case 0xE000: V =A <<2 &8 | A &1;
MMC3_CMDWrite(0x8000, 0x40); MMC3_CMDWrite(0x8001, V <<3 |0);
MMC3_CMDWrite(0x8000, 0x41); MMC3_CMDWrite(0x8001, V <<3 |2);
MMC3_CMDWrite(0x8000, 0x42); MMC3_CMDWrite(0x8001, V <<3 |4);
MMC3_CMDWrite(0x8000, 0x43); MMC3_CMDWrite(0x8001, V <<3 |5);
MMC3_CMDWrite(0x8000, 0x44); MMC3_CMDWrite(0x8001, V <<3 |6);
MMC3_CMDWrite(0x8000, 0x45); MMC3_CMDWrite(0x8001, V <<3 |7);
MMC3_CMDWrite(0x8000, 0x46); MMC3_CMDWrite(0x8001, V |0x20);
MMC3_CMDWrite(0x8000, 0x47); MMC3_CMDWrite(0x8001, V |0x10);
break;
}
}
static void Power(void) {
GenMMC3Power();
SetReadHandler(0x8000, 0xFFFF, flashrom_read);
SetWriteHandler(0x8000, 0xFFFF, Write);
}
void Mapper451_Init(CartInfo *info) {
GenMMC3_Init(info, 512, 32, 0, 0);
pwrap = PRGWrap;
flashrom_init (0x37, 0x86, 65536, 0x555, 0x2AA, 0x0FFF); /* AMIC A29040B */
info->Power =Power;
info->SaveGame[0] =PRGptr[0];
info->SaveGameLen[0] =PRGsize[0];
MapIRQHook =flashrom_cpuCycle;
}

1
src/ines.c
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@@ -873,6 +873,7 @@ INES_BOARD_BEGIN()
INES_BOARD( "830768C", 448, Mapper448_Init )
INES_BOARD( "22-in-1 King Series", 449, Mapper449_Init )
INES_BOARD( "晶太 YY841157C", 450, Mapper450_Init )
INES_BOARD( "Impact Soft C-IM2-BASE", 451, Mapper451_Init )
INES_BOARD( "DS-9-27", 452, Mapper452_Init )
INES_BOARD( "Realtec 8042", 453, Mapper453_Init )
INES_BOARD( "110-in-1", 454, Mapper454_Init )

1
src/ines.h
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@@ -352,6 +352,7 @@ void Mapper447_Init(CartInfo *);
void Mapper448_Init(CartInfo *);
void Mapper449_Init(CartInfo *);
void Mapper450_Init(CartInfo *);
void Mapper451_Init(CartInfo *);
void Mapper452_Init(CartInfo *);
void Mapper453_Init(CartInfo *);
void Mapper454_Init(CartInfo *);