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Add support for Mapper 126 (allows to play Power Joy 84-in-1) (Tanooki16) (#470)

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* Add support for mapper 126 (on game Power Joy 84-in-1) (Tanooki16)

* forgot to uncomment tile for enable mapper 126 emulation
This commit is contained in:
saulfabreg Wii VC Project 2022-06-28 18:39:09 -05:00 committed by GitHub
parent e69d6e7f5d
commit 84dc0cd3b4
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3 changed files with 104 additions and 1 deletions
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102
source/fceultra/boards/126.cpp Normal file
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@ -0,0 +1,102 @@
/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2019
*
* 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 "mmc3.h"
static uint16 GetExChrExBank() {
uint16 bank = (uint16)EXPREGS[0];
return ((~bank << 0 & 0x080 & ((uint16)EXPREGS[2])) | (bank << 4 & 0x080 & bank) |
(bank << 3 & 0x100) | (bank << 5 & 0x200));
}
static void UpdateChrBank(void) {
uint16 bank = (uint16)EXPREGS[2] & 0x0F;
bank |= GetExChrExBank() >> 3;
setchr8(bank);
}
static void M126CW(uint32 A, uint8 V) {
if (!(EXPREGS[3] & 0x10)) {
uint16 bank = (uint16)V & (((uint16)EXPREGS[0] & 0x80) - 1);
bank |= GetExChrExBank();
setchr1(A, bank);
}
}
static void M126PW(uint32 A, uint8 V) {
uint16 bank = (uint16)V;
uint16 preg = (uint16)EXPREGS[0];
bank &= ((~preg >> 2) & 0x10) | 0x0F;
bank |= ((preg & (0x06 | (preg & 0x40) >> 6)) << 4) | ((preg & 0x10) << 3);
if (!(EXPREGS[3] & 0x03))
setprg8(A, bank);
else if ((A - 0x8000) == ((MMC3_cmd << 8) & 0x4000)) { /* TODO: Clean this */
if ((EXPREGS[3] & 0x3) == 0x3)
setprg32(0x8000, (bank >> 2));
else {
setprg16(0x8000, (bank >> 1));
setprg16(0xc000, (bank >> 1));
}
}
}
static DECLFW(M126Write) {
A &= 0x03;
if(A == 0x01 || A == 0x02 || ((A == 0x00 || A == 0x03) && !(EXPREGS[3] & 0x80))) {
if (EXPREGS[A] != V) {
EXPREGS[A] = V;
if (EXPREGS[3] & 0x10)
UpdateChrBank();
else
FixMMC3CHR(MMC3_cmd);
FixMMC3PRG(MMC3_cmd);
}
}
}
void M126StateRestore(int v) {
FixMMC3CHR(MMC3_cmd);
FixMMC3PRG(MMC3_cmd);
if (EXPREGS[3] & 0x10)
UpdateChrBank();
}
static void M126Reset(void) {
EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
MMC3RegReset();
}
static void M126Power(void) {
EXPREGS[0] = EXPREGS[1] = EXPREGS[2] = EXPREGS[3] = 0;
GenMMC3Power();
SetWriteHandler(0x6000, 0x7FFF, M126Write);
}
void Mapper126_Init(CartInfo *info) {
GenMMC3_Init(info, 2048, 1023, 0, 0);
cwrap = M126CW;
pwrap = M126PW;
info->Power = M126Power;
info->Reset = M126Reset;
GameStateRestore = M126StateRestore;
AddExState(EXPREGS, 4, 0, "EXPR");
}

2
source/fceultra/ines.cpp
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@ -585,7 +585,7 @@ BMAPPINGLocal bmap[] = {
{"MMC3 PIRATE H2288", 123, UNLH2288_Init},
// {"", 124, Mapper124_Init},
{"FDS LH32", 125, LH32_Init},
// {"", 126, Mapper126_Init},
{"PowerJoy 84-in-1", 126, Mapper126_Init},
// {"", 127, Mapper127_Init},
// {"", 128, Mapper128_Init},
// {"", 129, Mapper129_Init},

1
source/fceultra/ines.h
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@ -182,6 +182,7 @@ void Mapper119_Init(CartInfo *);
void Mapper120_Init(CartInfo *);
void Mapper121_Init(CartInfo *);
void Mapper125_Init(CartInfo *);
void Mapper126_Init(CartInfo *);
void Mapper134_Init(CartInfo *);
void Mapper140_Init(CartInfo *);
void Mapper144_Init(CartInfo *);