Adding software-selectable mirroring to mapper 166/167. Rewrite mapper 518.

src/boards/518.c

@@ -0,0 +1,95 @@
+/* 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 "cartram.h"
+
+static uint8 reg[2];
+static uint8 chr;
+
+static void sync () {
+	setprg8r(0x10, 0x6000, 0);
+	if (reg[1] &0x04)
+		setprg32(0x8000, reg[0]);
+	else {
+		setprg16(0x8000, reg[0]);
+		setprg16(0xC000, 0);
+	}
+	setchr4(0x0000, reg[1] &0x02? chr: 0);
+	setchr4(0x1000, 1);
+	setmirror(reg[1] &0x01? MI_H: MI_V);
+}
+
+static void FP_FASTAPASS(1) trapPPUAddressChange (uint32 A) {
+	if (A &0x2000 && (A &0x23C0) < 0x23C0) {
+		chr = A >>(10 +(reg[1] &0x01? 1: 0)) &1;
+		setchr4(0x0000, reg[1] &0x02? chr: 0);
+	}
+}
+
+static DECLFR (readReg) {
+	switch(A >>8 &7) {
+		case 3: /* LPC state */
+			return 0x8F;
+		case 6: /* FDC */
+			return 0x00;
+		default:
+			return X.DB;
+	}
+}
+
+static DECLFW (writeReg) {
+	switch(A >>8 &7) {
+		case 0: case 2:
+			reg[A >>9 &1] = V;
+			sync();
+			break;
+		case 3: /* LPC data */
+			break;
+		case 5: /* FDC */
+			break;
+	}
+}
+
+static void reset () {
+	reg[0] = reg[1] = chr = 0;
+	sync();
+}
+
+static void power () {
+	SetReadHandler(0x5000, 0x5FFF, readReg);
+	SetReadHandler(0x6000, 0xFFFF, CartBR);
+	SetWriteHandler(0x5000, 0x5FFF, writeReg);
+	SetWriteHandler(0x6000, 0xFFFF, CartBW);
+	reset();
+}
+
+static void restore (int version) {
+	sync();
+}
+
+void Mapper518_Init (CartInfo *info) {
+	WRAM_init(info, 8);
+	info->Power = power;
+	info->Reset = reset;
+	GameStateRestore = restore;
+	PPU_hook = trapPPUAddressChange;
+	AddExState(&chr, 1, 0, "CHRB");
+}

src/boards/dance2000.c

@@ -1,113 +0,0 @@
-/* FCE Ultra - NES/Famicom Emulator
- *
- * Copyright notice for this file:
- *  Copyright (C) 2007 CaH4e3
- *
- * 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
- *
- * Dance 2000 12-in-1
- *
- */
-
-#include "mapinc.h"
-
-static uint8 prg, mode;
-static uint8 *WRAM = NULL;
-static uint32 WRAMSIZE;
-static uint32 lastnt = 0;
-
-static SFORMAT StateRegs[] =
-{
-	{ &prg, 1, "REGS" },
-	{ &mode, 1, "MODE" },
-	{ &lastnt, 4, "LSNT" },
-	{ 0 }
-};
-
-static void Sync(void) {
-	setmirror((mode ^ 1) & 1);
-	setprg8r(0x10, 0x6000, 0);
-	setchr4(0x0000, lastnt);
-	setchr4(0x1000, 1);
-	if (mode & 4)
-		setprg32(0x8000, prg & 7);
-	else {
-		setprg16(0x8000, prg & 0x0f);
-		setprg16(0xC000, 0);
-	}
-}
-
-static DECLFW(UNLD2000Write) {
-	switch (A) {
-	case 0x5000: prg = V; Sync(); break;
-	case 0x5200: mode = V; if (mode & 4) Sync(); break;
-	}
-}
-
-static DECLFR(UNLD2000Read) {
-	if (prg & 0x40)
-		return X.DB;
-	else
-		return CartBR(A);
-}
-
-static void UNLD2000Power(void) {
-	prg = mode = 0;
-	Sync();
-	SetReadHandler(0x6000, 0x7FFF, CartBR);
-	SetWriteHandler(0x6000, 0x7FFF, CartBW);
-	SetReadHandler(0x8000, 0xFFFF, UNLD2000Read);
-	SetWriteHandler(0x5000, 0x5FFF, UNLD2000Write);
-	FCEU_CheatAddRAM(WRAMSIZE >> 10, 0x6000, WRAM);
-}
-
-static void FP_FASTAPASS(1) UNL2000Hook(uint32 A) {
-	if (mode & 2) {
-		if ((A & 0x3000) == 0x2000) {
-			uint32 curnt = A & 0x800;
-			if (curnt != lastnt) {
-				setchr4(0x0000, curnt >> 11);
-				lastnt = curnt;
-			}
-		}
-	} else {
-		lastnt = 0;
-		setchr4(0x0000, 0);
-	}
-}
-
-static void UNLD2000Close(void) {
-	if (WRAM)
-		FCEU_gfree(WRAM);
-	WRAM = NULL;
-}
-
-static void StateRestore(int version) {
-	Sync();
-}
-
-void UNLD2000_Init(CartInfo *info) {
-	info->Power = UNLD2000Power;
-	info->Close = UNLD2000Close;
-	PPU_hook = UNL2000Hook;
-	GameStateRestore = StateRestore;
-
-	WRAMSIZE = 8192;
-	WRAM = (uint8*)FCEU_gmalloc(WRAMSIZE);
-	SetupCartPRGMapping(0x10, WRAM, WRAMSIZE, 1);
-	AddExState(WRAM, WRAMSIZE, 0, "WRAM");
-
-	AddExState(&StateRegs, ~0, 0, 0);
-}

src/boards/subor.c

@@ -55,6 +55,7 @@ static void Sync(void) {
 		}
 	}
 	setchr8(0);
+	setmirror(regs[0] & 0x01? MI_H: MI_V);
 }
 
 static DECLFW(M166Write) {

src/ines.c

@@ -944,7 +944,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "Subor Karaoke",            514, Mapper514_Init         )
 	INES_BOARD( "Brilliant Com Cocoma Pack",516, Mapper516_Init         )
 	INES_BOARD( "Kkachi-wa Nolae Chingu",   517, UNROM_Init             ) /* Microphone input currently not emulated */
-	INES_BOARD( "DANCE2000",                518, UNLD2000_Init          )
+	INES_BOARD( "Subor SB96",               518, Mapper518_Init         )
 	INES_BOARD( "EH8813A",                  519, UNLEH8813A_Init        )
 	INES_BOARD( "YuYuHakusho+DBZ",          520, Mapper520_Init        )
 	INES_BOARD( "DREAMTECH01",              521, DreamTech01_Init       )

src/ines.h

@@ -424,6 +424,7 @@ void Mapper511_Init(CartInfo *);
 void Mapper512_Init(CartInfo *);
 void Mapper514_Init(CartInfo *);
 void Mapper516_Init(CartInfo *);
+void Mapper518_Init(CartInfo *);
 void Mapper520_Init(CartInfo *);
 void Mapper523_Init(CartInfo *);
 void Mapper528_Init(CartInfo *);

src/unif.c

@@ -456,7 +456,7 @@ static BMAPPING bmap[] = {
 	{ "D1038",                       59, BMCD1038_Init,         0 },
 	{ "T3H53",                       59, BMCD1038_Init,         0 },
 	{ "DANCE",                      256, UNLOneBus_Init,        0 },
-	{ "DANCE2000",                  518, UNLD2000_Init,         0 },
+	{ "DANCE2000",                  518, Mapper518_Init,        0 },
 	{ "DREAMTECH01",                521, DreamTech01_Init,      0 },
 	{ "EDU2000",                    329, UNLEDU2000_Init,       0 },
 	{ "EKROM",                        5, EKROM_Init,            0 },