Adding software-selectable mirroring to mapper 166/167. Rewrite mapper 518.
This commit is contained in:
NewRisingSun
95
src/boards/518.c
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95
src/boards/518.c
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@@ -0,0 +1,95 @@
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/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2025 NewRisingSun
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "mapinc.h"
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#include "cartram.h"
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static uint8 reg[2];
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static uint8 chr;
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static void sync () {
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setprg8r(0x10, 0x6000, 0);
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if (reg[1] &0x04)
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setprg32(0x8000, reg[0]);
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else {
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setprg16(0x8000, reg[0]);
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setprg16(0xC000, 0);
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}
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setchr4(0x0000, reg[1] &0x02? chr: 0);
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setchr4(0x1000, 1);
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setmirror(reg[1] &0x01? MI_H: MI_V);
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}
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static void FP_FASTAPASS(1) trapPPUAddressChange (uint32 A) {
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if (A &0x2000 && (A &0x23C0) < 0x23C0) {
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chr = A >>(10 +(reg[1] &0x01? 1: 0)) &1;
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setchr4(0x0000, reg[1] &0x02? chr: 0);
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}
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}
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static DECLFR (readReg) {
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switch(A >>8 &7) {
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case 3: /* LPC state */
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return 0x8F;
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case 6: /* FDC */
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return 0x00;
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default:
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return X.DB;
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}
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}
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static DECLFW (writeReg) {
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switch(A >>8 &7) {
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case 0: case 2:
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reg[A >>9 &1] = V;
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sync();
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break;
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case 3: /* LPC data */
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break;
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case 5: /* FDC */
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break;
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}
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}
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static void reset () {
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reg[0] = reg[1] = chr = 0;
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sync();
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}
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static void power () {
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SetReadHandler(0x5000, 0x5FFF, readReg);
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SetReadHandler(0x6000, 0xFFFF, CartBR);
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SetWriteHandler(0x5000, 0x5FFF, writeReg);
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SetWriteHandler(0x6000, 0xFFFF, CartBW);
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reset();
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}
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static void restore (int version) {
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sync();
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}
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void Mapper518_Init (CartInfo *info) {
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WRAM_init(info, 8);
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info->Power = power;
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info->Reset = reset;
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GameStateRestore = restore;
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PPU_hook = trapPPUAddressChange;
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AddExState(&chr, 1, 0, "CHRB");
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}
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@@ -1,113 +0,0 @@
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/* FCE Ultra - NES/Famicom Emulator
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*
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* Copyright notice for this file:
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* Copyright (C) 2007 CaH4e3
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Dance 2000 12-in-1
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*
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*/
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#include "mapinc.h"
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static uint8 prg, mode;
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static uint8 *WRAM = NULL;
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static uint32 WRAMSIZE;
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static uint32 lastnt = 0;
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static SFORMAT StateRegs[] =
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{
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{ &prg, 1, "REGS" },
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{ &mode, 1, "MODE" },
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{ &lastnt, 4, "LSNT" },
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{ 0 }
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};
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static void Sync(void) {
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setmirror((mode ^ 1) & 1);
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setprg8r(0x10, 0x6000, 0);
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setchr4(0x0000, lastnt);
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setchr4(0x1000, 1);
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if (mode & 4)
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setprg32(0x8000, prg & 7);
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else {
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setprg16(0x8000, prg & 0x0f);
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setprg16(0xC000, 0);
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}
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}
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static DECLFW(UNLD2000Write) {
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switch (A) {
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case 0x5000: prg = V; Sync(); break;
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case 0x5200: mode = V; if (mode & 4) Sync(); break;
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}
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}
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static DECLFR(UNLD2000Read) {
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if (prg & 0x40)
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return X.DB;
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else
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return CartBR(A);
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}
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static void UNLD2000Power(void) {
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prg = mode = 0;
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Sync();
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SetReadHandler(0x6000, 0x7FFF, CartBR);
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SetWriteHandler(0x6000, 0x7FFF, CartBW);
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SetReadHandler(0x8000, 0xFFFF, UNLD2000Read);
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SetWriteHandler(0x5000, 0x5FFF, UNLD2000Write);
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FCEU_CheatAddRAM(WRAMSIZE >> 10, 0x6000, WRAM);
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}
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static void FP_FASTAPASS(1) UNL2000Hook(uint32 A) {
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if (mode & 2) {
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if ((A & 0x3000) == 0x2000) {
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uint32 curnt = A & 0x800;
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if (curnt != lastnt) {
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setchr4(0x0000, curnt >> 11);
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lastnt = curnt;
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}
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}
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} else {
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lastnt = 0;
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setchr4(0x0000, 0);
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}
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}
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static void UNLD2000Close(void) {
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if (WRAM)
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FCEU_gfree(WRAM);
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WRAM = NULL;
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}
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static void StateRestore(int version) {
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Sync();
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}
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void UNLD2000_Init(CartInfo *info) {
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info->Power = UNLD2000Power;
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info->Close = UNLD2000Close;
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PPU_hook = UNL2000Hook;
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GameStateRestore = StateRestore;
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WRAMSIZE = 8192;
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WRAM = (uint8*)FCEU_gmalloc(WRAMSIZE);
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SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
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AddExState(WRAM, WRAMSIZE, 0, "WRAM");
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AddExState(&StateRegs, ~0, 0, 0);
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}
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@@ -55,6 +55,7 @@ static void Sync(void) {
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}
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}
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setchr8(0);
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setmirror(regs[0] & 0x01? MI_H: MI_V);
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}
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static DECLFW(M166Write) {
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@@ -944,7 +944,7 @@ INES_BOARD_BEGIN()
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INES_BOARD( "Subor Karaoke", 514, Mapper514_Init )
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INES_BOARD( "Brilliant Com Cocoma Pack",516, Mapper516_Init )
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INES_BOARD( "Kkachi-wa Nolae Chingu", 517, UNROM_Init ) /* Microphone input currently not emulated */
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INES_BOARD( "DANCE2000", 518, UNLD2000_Init )
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INES_BOARD( "Subor SB96", 518, Mapper518_Init )
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INES_BOARD( "EH8813A", 519, UNLEH8813A_Init )
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INES_BOARD( "YuYuHakusho+DBZ", 520, Mapper520_Init )
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INES_BOARD( "DREAMTECH01", 521, DreamTech01_Init )
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@@ -424,6 +424,7 @@ void Mapper511_Init(CartInfo *);
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void Mapper512_Init(CartInfo *);
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void Mapper514_Init(CartInfo *);
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void Mapper516_Init(CartInfo *);
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void Mapper518_Init(CartInfo *);
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void Mapper520_Init(CartInfo *);
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void Mapper523_Init(CartInfo *);
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void Mapper528_Init(CartInfo *);
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@@ -456,7 +456,7 @@ static BMAPPING bmap[] = {
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{ "D1038", 59, BMCD1038_Init, 0 },
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{ "T3H53", 59, BMCD1038_Init, 0 },
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{ "DANCE", 256, UNLOneBus_Init, 0 },
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{ "DANCE2000", 518, UNLD2000_Init, 0 },
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{ "DANCE2000", 518, Mapper518_Init, 0 },
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{ "DREAMTECH01", 521, DreamTech01_Init, 0 },
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{ "EDU2000", 329, UNLEDU2000_Init, 0 },
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{ "EKROM", 5, EKROM_Init, 0 },
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