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Add mapper 574.

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NewRisingSun
2025-09-09 14:08:49 +02:00
parent 68cb735a6a
commit 25b3ee1ad7
3 changed files with 48 additions and 0 deletions
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46
src/boards/574.c Normal file
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@@ -0,0 +1,46 @@
/* FCE Ultra - 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
*/
#include "mapinc.h"
#include "asic_latch.h"
static void sync () {
if (Latch_address &0x40) /* AOROM */
setprg32(0x8000, Latch_address >>2 &~0x07 | Latch_data &0x07);
else
if (Latch_address &0x20) /* ANROM */
setprg32(0x8000, Latch_address >>2 &~0x03 | Latch_data &0x03);
else /* NROM-256 */
setprg32(0x8000, Latch_address >>2 &~0x03 | Latch_address &0x03);
setchr8(0);
if (Latch_address &0x60) /* AxROM */
setmirror(Latch_data &0x10? MI_1: MI_0);
else
setmirror(Latch_data &0x10? MI_H: MI_V);
}
static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue) { /* After the lock bit is set, only update the data bits and the lowest two address bits. */
if (Latch_address &0x80) *newAddress = Latch_address &~0x03 | *newAddress &0x03;
}
void Mapper574_Init (CartInfo *info) {
Latch_init(info, sync, 0x8000, 0xFFFF, trapLatchWrite);
info->Reset = Latch_clear;
}

1
src/ines.c
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@@ -955,6 +955,7 @@ INES_BOARD_BEGIN()
INES_BOARD( "9052", 570, Mapper570_Init )
INES_BOARD( "F-648", 572, Mapper572_Init )
INES_BOARD( "5068", 573, Mapper573_Init )
INES_BOARD( "FC-40", 574, Mapper574_Init )
INES_BOARD( "W-03", 575, Mapper575_Init )
INES_BOARD( "J-2096", 576, Mapper576_Init )
INES_BOARD( "KN-29", 577, Mapper577_Init )

1
src/ines.h
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@@ -421,6 +421,7 @@ void Mapper567_Init(CartInfo *);
void Mapper570_Init(CartInfo *);
void Mapper572_Init(CartInfo *);
void Mapper573_Init(CartInfo *);
void Mapper574_Init(CartInfo *);
void Mapper575_Init(CartInfo *);
void Mapper576_Init(CartInfo *);
void Mapper577_Init(CartInfo *);