49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* 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"
|
|
#include "wram.h"
|
|
|
|
static uint8 chr;
|
|
|
|
static void sync () {
|
|
setprg8r(0x10, 0x6000, 0);
|
|
setprg32(0x8000, Latch_data);
|
|
setchr4(0x0000, Latch_data &0x80? chr: 0);
|
|
setchr4(0x1000, 1);
|
|
setmirror(Latch_data &0x40? MI_H: MI_V);
|
|
}
|
|
|
|
static void FP_FASTAPASS(1) trapPPUAddressChange (uint32 A) {
|
|
if (A &0x2000 && (A &0x23C0) < 0x23C0) {
|
|
chr = A >>(10 +(Latch_data &0x40? 1: 0)) &1;
|
|
setchr4(0x0000, Latch_data &0x80? chr: 0);
|
|
}
|
|
}
|
|
|
|
void Mapper514_Init (CartInfo *info) {
|
|
Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
|
|
WRAM_init(info, 8);
|
|
info->Reset = Latch_clear;
|
|
PPU_hook = trapPPUAddressChange;
|
|
AddExState(&chr, 1, 0, "CHRB");
|
|
}
|