From f1576fd15ad272148068c76b9af32aa5a5afb123 Mon Sep 17 00:00:00 2001
From: NewRisingSun <8vytz1+dhp372pv94ebg@sharklasers.com>
Date: Thu, 11 Sep 2025 00:20:34 +0200
Subject: [PATCH] Add mapper 549.

---
 src/boards/549.c        | 33 +++++++++++++++++++++++++++++++++
 src/boards/asic_latch.c |  3 ++-
 src/ines.c              |  1 +
 src/ines.h              |  1 +
 4 files changed, 37 insertions(+), 1 deletion(-)
 create mode 100644 src/boards/549.c

diff --git a/src/boards/549.c b/src/boards/549.c
new file mode 100644
index 0000000..3d62dae
--- /dev/null
+++ b/src/boards/549.c
@@ -0,0 +1,33 @@
+/* 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 "asic_latch.h"
+
+static void sync () {
+	setprg8(0x6000, Latch_address >>2 | Latch_address >>3 &0x04);
+	setprg32(0x8000, 2);
+	setchr8(0);
+}
+
+void Mapper549_Init (CartInfo *info) {
+	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
+	info->Reset = Latch_clear;
+}
diff --git a/src/boards/asic_latch.c b/src/boards/asic_latch.c
index f94286b..538ccd0 100644
--- a/src/boards/asic_latch.c
+++ b/src/boards/asic_latch.c
@@ -48,7 +48,8 @@ void Latch_clear () {
 }
 
 static void Latch_setHandlers() {
-	SetReadHandler(0x8000, 0xFFFF, CartBR);
+	SetReadHandler(0x6000, 0xFFFF, CartBR);
+	SetWriteHandler(0x6000, 0x7FFF, CartBW);
 	SetWriteHandler(Latch_from, Latch_to, Latch_write);
 }
 
diff --git a/src/ines.c b/src/ines.c
index 5d8a1b2..fe5448a 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -959,6 +959,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "JYV610 830626C",           542, Mapper542_Init         )
 	INES_BOARD( "5-in-1 (CH-501)",          543, Mapper543_Init         )
 	INES_BOARD( "WAIXING FS306",            544, Mapper544_Init         )
+	INES_BOARD( "Kaiser KS-7016B",          549, Mapper549_Init         )
 	INES_BOARD( "",                         550, Mapper550_Init         )
 	INES_BOARD( "",              		551, Mapper178_Init         )
 	INES_BOARD( "TAITO X1-017",             552, Mapper552_Init         )
diff --git a/src/ines.h b/src/ines.h
index e7fd9f1..bcaff87 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -428,6 +428,7 @@ void Mapper541_Init(CartInfo *);
 void Mapper542_Init(CartInfo *);
 void Mapper543_Init(CartInfo *);
 void Mapper544_Init(CartInfo *);
+void Mapper549_Init(CartInfo *);
 void Mapper550_Init(CartInfo *);
 void Mapper552_Init(CartInfo *);
 void Mapper553_Init(CartInfo *);