update (#483)

* Fix missing GameStateRestore

* Add mapper 403

Co-authored-by: negativeExponent <negativeExponent@users.noreply.github.com>

src/boards/403.c

@@ -0,0 +1,81 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2022 negativeExponent
+ *
+ * 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.
+ */
+
+/* NES 2.0 Mapper 403 denotes the 89433 circuit board with up to 1 MiB PRG-ROM and 32 KiB of CHR-RAM, bankable with 8 KiB granularity.
+ *
+ * Tetris Family - 玩家 19-in-1 智瑟實典 (NO-1683)
+ * Sachen Superpack (versions A-C)
+ */
+
+#include "mapinc.h"
+
+static uint8 reg[3];
+
+static void Sync(void) {
+	uint8 prg  = reg[0];
+	uint8 chr  = reg[1];
+	uint8 mode = reg[2];
+
+	/* NROM-128 */
+	if (mode & 1) {
+		setprg16(0x8000, prg >> 1);
+		setprg16(0xC000, prg >> 1);
+	/* NROM-256 */
+	} else
+		setprg32(0x8000, prg >> 2);
+	setchr8(chr);
+	setmirror(((mode >> 4) & 1) ^ 1);
+}
+
+static DECLFW(M403Write4) {
+	reg[A & 3] = V;
+	Sync();
+}
+
+static DECLFW(M403Write8) {
+	if (reg[2] & 4) {
+		reg[1] = V;
+		Sync();
+	}
+}
+
+static void M403Reset(void) {
+	reg[0] = reg[1] = reg[2] = 0;
+	Sync();
+}
+
+static void M403Power(void) {
+	reg[0] = reg[1] = reg[2] = 0;
+	Sync();
+	SetReadHandler(0x8000, 0xFFFF, CartBR);
+	SetWriteHandler(0x4100, 0x4103, M403Write4);
+	SetWriteHandler(0x8000, 0xFFFF, M403Write8);
+}
+
+static void StateRestore(void) {
+	Sync();
+}
+
+void Mapper403_Init(CartInfo *info) {
+	info->Reset = M403Reset;
+	info->Power = M403Power;
+	GameStateRestore = StateRestore;
+	AddExState(&reg, 3, 0, "REGS");
+}