Add mapper 413 support

src/CMakeLists.txt

@@ -375,6 +375,7 @@ set(SRC_CORE
   	${CMAKE_CURRENT_SOURCE_DIR}/boards/33.cpp
   	${CMAKE_CURRENT_SOURCE_DIR}/boards/34.cpp
   	${CMAKE_CURRENT_SOURCE_DIR}/boards/354.cpp
+	${CMAKE_CURRENT_SOURCE_DIR}/boards/413.cpp
   	${CMAKE_CURRENT_SOURCE_DIR}/boards/36.cpp
   	${CMAKE_CURRENT_SOURCE_DIR}/boards/3d-block.cpp
   	${CMAKE_CURRENT_SOURCE_DIR}/boards/40.cpp

src/boards/413.cpp

@@ -0,0 +1,147 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2024
+ *
+ * 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 "../ines.h"
+
+static uint8 reg[4];
+static uint8 IRQCount;
+static uint8 IRQReload;
+static uint8 IRQa;
+static uint8 serialControl;
+static uint32 serialAddress;
+
+static SFORMAT StateRegs[] = {
+	{ reg,            4, "REGS" },
+	{ &IRQCount,      1, "IRQC" },
+	{ &IRQReload,     1, "IRQR" },
+	{ &IRQa,          1, "IRQA" },
+	{ &serialAddress, 4, "ADDR" },
+	{ &serialControl, 1, "CTRL" },
+	{ 0 }
+};
+
+static void Sync(void) {
+	setprg4(0x5000, 0x01);
+	setprg8(0x6000, reg[0]);
+
+	setprg8(0x8000, reg[1]);
+	setprg8(0xA000, reg[2]);
+	setprg4(0xD000, 0x07);
+	setprg8(0xE000, 0x04);
+
+	setchr4(0x0000, reg[3]);
+	setchr4(0x1000, ~0x02);
+}
+
+static uint64 lreset;
+static uint32 laddr;
+static DECLFR(M413ReadPCM) {
+	uint8 ret = X.DB;
+	if ((A == laddr) && ((timestampbase + timestamp) < (lreset + 4))) {
+		return ret;
+	}
+	if (serialControl & 0x02) {
+		ret = MiscROM[serialAddress++ & (MiscROM_size - 1)];
+	} else {
+		ret = MiscROM[serialAddress & (MiscROM_size - 1)];
+	}
+	laddr = A;
+	lreset = timestampbase + timestamp;
+	return ret;
+}
+
+static DECLFW(M413Write) {
+	switch (A & 0xF000) {
+	case 0x8000:
+		IRQReload = V;
+		break;
+	case 0x9000:
+		IRQCount = 0;
+		break;
+	case 0xA000:
+	case 0xB000:
+		IRQa = (A & 0x1000) != 0;
+		if (!IRQa) {
+			X6502_IRQEnd(FCEU_IQEXT);
+		}
+		break;
+	case 0xC000:
+		serialAddress = (serialAddress << 1) | (V >> 7);
+		break;
+	case 0xD000:
+		serialControl = V;
+		break;
+	case 0xE000:
+	case 0xF000:
+		reg[V >> 6] = V & 0x3F;
+        Sync();
+		break;
+	}
+}
+
+static void M413Power(void) {
+    serialAddress = 0;
+    serialControl = 0;
+
+    IRQCount = 0;
+    IRQReload = 0;
+    IRQa = 0;
+
+    reg[0] = 0;
+	reg[1] = 0;
+	reg[2] = 0;
+	reg[3] = 0;
+
+	laddr = 0;
+	lreset = 0;
+
+	Sync();
+	
+	SetReadHandler(0x4800, 0x4FFF, M413ReadPCM);
+	SetReadHandler(0x5000, 0x7FFF, CartBR);
+	SetReadHandler(0x8000, 0xBFFF, CartBR);
+    SetReadHandler(0xC000, 0xCFFF, M413ReadPCM);
+	SetReadHandler(0xD000, 0xFFFF, CartBR);
+
+	SetWriteHandler(0x8000, 0xFFFF, M413Write);
+}
+
+static void M413IRQHook(void) {
+	if (IRQCount == 0) {
+		IRQCount = IRQReload;
+	} else {
+		IRQCount--;
+	}
+	if ((IRQCount == 0) && IRQa) {
+		X6502_IRQBegin(FCEU_IQEXT);
+	}
+}
+
+static void StateRestore(int version) {
+	Sync();
+}
+
+void Mapper413_Init(CartInfo *info) {
+	info->Power      = M413Power;
+	GameHBIRQHook    = M413IRQHook;
+	GameStateRestore = StateRestore;
+	AddExState(&StateRegs, ~0, 0, 0);
+}

src/ines.cpp

@@ -796,6 +796,7 @@ BMAPPINGLocal bmap[] = {
 	{"FAM250/81-01-39-C/SCHI-24",			354, Mapper354_Init },
 
 	{"Impact Soft MMC3 Flash Board",	406, Mapper406_Init },
+	{"Super Russian Roulette",	413, Mapper413_Init },
 	{"INX_007T_V01",		470, INX_007T_Init },
 
 	{"KONAMI QTAi Board",	547, QTAi_Init },

src/ines.h

@@ -280,6 +280,7 @@ void Mapper254_Init(CartInfo *);
 void Mapper255_Init(CartInfo *);
 void Mapper354_Init(CartInfo *);
 void Mapper406_Init(CartInfo *);
+void Mapper413_Init(CartInfo *);
 
 void INX_007T_Init(CartInfo* info);
 void GN45_Init(CartInfo *info); /* previously mapper 205 */

vc/vc14_fceux.vcxproj

@@ -437,6 +437,7 @@ xcopy /y /d "$(ProjectDir)\..\src\drivers\win\7z_64.dll" "$(OutDir)"</Command>
     <ClCompile Include="..\src\boards\33.cpp" />
     <ClCompile Include="..\src\boards\34.cpp" />
     <ClCompile Include="..\src\boards\354.cpp" />
+    <ClCompile Include="..\src\boards\413.cpp" />
     <ClCompile Include="..\src\boards\36.cpp" />
     <ClCompile Include="..\src\boards\3d-block.cpp" />
     <ClCompile Include="..\src\boards\40.cpp" />

vc/vc14_fceux.vcxproj.filters

@@ -1120,6 +1120,9 @@
     <ClCompile Include="..\src\boards\354.cpp">
       <Filter>boards</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\boards\413.cpp">
+      <Filter>boards</Filter>
+    </ClCompile>
     <ClCompile Include="..\src\debugsymboltable.cpp" />
   </ItemGroup>
   <ItemGroup>