From 8073cfba7e2d21bc69290d86e0ad01b31162103f Mon Sep 17 00:00:00 2001
From: negativeExponent <negativeExponent@users.noreply.github.com>
Date: Sun, 11 Oct 2020 22:47:48 +0800
Subject: [PATCH] Add mapper 411

---
 src/boards/411.c | 85 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/ines.c       |  1 +
 src/ines.h       |  1 +
 3 files changed, 87 insertions(+)
 create mode 100644 src/boards/411.c

diff --git a/src/boards/411.c b/src/boards/411.c
new file mode 100644
index 0000000..eafa3cc
--- /dev/null
+++ b/src/boards/411.c
@@ -0,0 +1,85 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2020 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
+ *
+ */
+
+/* Mapper 411 - A88S-1
+ * 1997 Super 7-in-1 (JY-201)
+ * 1997 Super 6-in-1 (JY-202)
+ * 1997 Super 7-in-1 (JY-203)
+ * 1997 龍珠武鬥會 7-in-1 (JY-204)
+ * 1997 Super 7-in-1 (JY-205)
+ * 1997 Super 7-in-1 (JY-206)
+ */
+
+#include "mapinc.h"
+#include "mmc3.h"
+
+static void M411CW(uint32 A, uint8 V) {
+	uint32 mask = (EXPREGS[1] & 2) ? 0xFF : 0x7F;
+	V &= mask;
+	setchr1(A, V | ((EXPREGS[1] << 5) & 0x80) | ((EXPREGS[0] << 4) & 0x100));
+}
+
+static void M411PW(uint32 A, uint8 V) {
+	/* NROM Mode */
+	if (EXPREGS[0] & 0x40)
+	{
+		uint32 bank = (EXPREGS[0] & 1) | ((EXPREGS[0] >> 2) & 2) | (EXPREGS[0] & 4) | (EXPREGS[1] & 8) | ((EXPREGS[1] >> 2) & 0x10);
+
+		/* NROM-256 */
+		if (EXPREGS[0] & 0x02) {
+			setprg32(0x8000, bank >> 1);
+
+		/* NROM-128 */
+		} else {
+			setprg16(0x8000, bank);
+			setprg16(0xC000, bank);
+		}
+	}
+
+	/* MMC3 Mode */
+	else
+	{
+		uint32 mask = (EXPREGS[1] & 2) ? 0x1F : 0x0F;
+		V &= mask;
+		setprg8(A, V | ((EXPREGS[1] << 1) & 0x10) | ((EXPREGS[1] >> 1) & 0x20));
+	}
+}
+
+static DECLFW(M411Write5000) {
+	EXPREGS[A & 1] = V;
+	FixMMC3PRG(MMC3_cmd);
+	FixMMC3CHR(MMC3_cmd);
+}
+
+static void M411Power(void) {
+	EXPREGS[0] = 0x80;
+	EXPREGS[1] = 0x82;
+	GenMMC3Power();
+	SetWriteHandler(0x5000, 0x5FFF, M411Write5000);
+}
+
+void Mapper411_Init(CartInfo *info) {
+	GenMMC3_Init(info, 256, 256, 0, 0);
+	pwrap = M411PW;
+	cwrap = M411CW;
+	info->Power = M411Power;
+	AddExState(EXPREGS, 2, 0, "EXPR");
+}
diff --git a/src/ines.c b/src/ines.c
index 6d811a0..8897dab 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -698,6 +698,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "830928C",                  382, Mapper382_Init         )
 	INES_BOARD( "Caltron 9-in-1",           389, Mapper389_Init         )
 	INES_BOARD( "Realtec 8031",             390, Mapper390_Init         )
+	INES_BOARD( "A88S-1",                   411, Mapper411_Init         )
 	INES_BOARD( "Brilliant Com Cocoma Pack", 516, Mapper516_Init        )
 	INES_BOARD( "Sachen 3014",              533, Mapper533_Init         )
 	INES_BOARD( "NJ064",                    534, Mapper534_Init         )
diff --git a/src/ines.h b/src/ines.h
index 24e0abb..3f40b06 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -265,6 +265,7 @@ void Mapper381_Init(CartInfo *);
 void Mapper382_Init(CartInfo *);
 void Mapper389_Init(CartInfo *);
 void Mapper390_Init(CartInfo *);
+void Mapper411_Init(CartInfo *);
 void Mapper516_Init(CartInfo *);
 void Mapper533_Init(CartInfo *);
 void Mapper534_Init(CartInfo *);