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Add mappers 501 and 502

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This commit is contained in:
libretroadmin
2024-05-25 09:27:13 +02:00
parent 902b3b01c6
commit fd909e1417
4 changed files with 128 additions and 0 deletions
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57
src/boards/501.c Normal file
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@@ -0,0 +1,57 @@
/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2023
*
* 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 "latch.h"
static uint8 reg[2];
static SFORMAT StateRegs[] = {
{ reg, 2, "REGS" },
{ 0 }
};
static void Sync(void) {
setprg4(0x7000, 0);
setprg32(0x8000, (reg[0] << 2) + (latch.data & 7));
setchr8(0);
setmirror(MI_0 + (reg[1] & 1));
}
static DECLFW(M501WriteReg) {
if (~reg[1] & 0x80) {
reg[A & 1] = V;
Sync();
}
}
static void M501Power() {
reg[0] = reg[1] = 0;
LatchPower();
SetReadHandler(0x7000, 0x7FFF, CartBR);
SetWriteHandler(0x6000, 0x6FFF, M501WriteReg);
}
void Mapper501_Init(CartInfo *info) {
Latch_Init(info, Sync, NULL, 0, 0);
info->Power = M501Power;
AddExState(StateRegs, ~0, 0, NULL);
}

67
src/boards/502.c Normal file
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@@ -0,0 +1,67 @@
/* FCE Ultra - NES/Famicom Emulator
*
* Copyright notice for this file:
* Copyright (C) 2023
*
* 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 "latch.h"
static uint8 reg[2];
static SFORMAT StateRegs[] = {
{ reg, 2, "REGS" },
{ 0 }
};
static void Sync(void) {
uint8 mask = (8 << (reg[1] >> 4 & 3)) - 1;
setprg4(0x7000, 0);
if (reg[1] & 6)
setprg32(0x8000, (reg[0] << 2) + (latch.data & (mask >> 1)));
else {
setprg16(0x8000, (reg[0] << 3) + (latch.data & mask));
setprg16(0xC000, (reg[0] << 3) + mask);
}
setchr8(0);
if (reg[1] & 2) {
setmirror(MI_0 + (latch.data >> 4) & 1);
} else {
setmirror(reg[1] & 1);
}
}
static DECLFW(M502WriteReg) {
if (~reg[1] & 0x80) {
reg[A & 1] = V;
Sync();
}
}
static void M502Power() {
reg[0] = reg[1] = 0;
LatchPower();
SetReadHandler(0x7000, 0x7FFF, CartBR);
SetWriteHandler(0x6000, 0x6FFF, M502WriteReg);
}
void Mapper502_Init(CartInfo *info) {
Latch_Init(info, Sync, NULL, 0, 0);
info->Power = M502Power;
AddExState(StateRegs, ~0, 0, NULL);
}

2
src/ines.c
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@@ -835,6 +835,8 @@ INES_BOARD_BEGIN()
INES_BOARD( "47-2", 467, Mapper467_Init )
INES_BOARD( "BlazePro CPLD", 468, Mapper468_Init )
INES_BOARD( "Yhc-000", 500, Mapper500_Init )
INES_BOARD( "Yhc-001", 501, Mapper501_Init )
INES_BOARD( "Yhc-002", 502, Mapper502_Init )
INES_BOARD( "SA-9602B", 513, SA9602B_Init )
INES_BOARD( "Brilliant Com Cocoma Pack", 516, Mapper516_Init )
INES_BOARD( "DANCE2000", 518, UNLD2000_Init )

2
src/ines.h
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@@ -344,6 +344,8 @@ void Mapper466_Init(CartInfo *);
void Mapper467_Init(CartInfo *);
void Mapper468_Init(CartInfo *);
void Mapper500_Init(CartInfo *);
void Mapper501_Init(CartInfo *);
void Mapper502_Init(CartInfo *);
void Mapper516_Init(CartInfo *);
void Mapper523_Init(CartInfo *);
void Mapper533_Init(CartInfo *);