From c80d2b129768755e1bb959df3a2df6f04b8ed115 Mon Sep 17 00:00:00 2001
From: NewRisingSun <8vytz1+dhp372pv94ebg@sharklasers.com>
Date: Wed, 27 Jul 2022 11:56:35 +0200
Subject: [PATCH] Add mapper 459

---
 src/boards/addrlatch.c | 18 ++++++++++++++++++
 src/ines.c             |  1 +
 src/ines.h             |  1 +
 3 files changed, 20 insertions(+)

diff --git a/src/boards/addrlatch.c b/src/boards/addrlatch.c
index 836e7a8..14dba25 100644
--- a/src/boards/addrlatch.c
+++ b/src/boards/addrlatch.c
@@ -758,6 +758,24 @@ void Mapper435_Init(CartInfo *info) {
 	Latch_Init(info, M435Sync, NULL, 0x0000, 0x8000, 0xFFFF, 1);
 }
 
+/*------------------ Map 459 ---------------------------*/
+static void M459Sync(void) {
+	int p =latche >>5;
+	int c =latche &0x03 | latche >>2 &0x04 | latche >>4 &0x08;
+	if (latche &0x04) {
+		setprg32(0x8000, p);
+	} else {
+		setprg16(0x8000, p <<1);
+		setprg16(0xC000, p <<1 |7);
+	}
+	setchr8(c &(latche &0x08? 0x0F: 0x08));
+	setmirror(latche &0x100? MI_H: MI_V);
+}
+
+void Mapper459_Init(CartInfo *info) {
+	Latch_Init(info, M459Sync, NULL, 0x0000, 0x8000, 0xFFFF, 1);
+}
+
 /*------------------ Map 464 ---------------------------*/
 static void M464Sync(void) {
 	int p =latche >>7;
diff --git a/src/ines.c b/src/ines.c
index ce3791e..2350f51 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -820,6 +820,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "NC-7000M/NC-8000M",        444, Mapper444_Init         )
 	INES_BOARD( "DS-9-27",                  452, Mapper452_Init         )
 	INES_BOARD( "K6C3001A",                 456, Mapper456_Init         )
+	INES_BOARD( "8-in-1",                   459, Mapper459_Init         )
 	INES_BOARD( "YH810X1",                 	463, Mapper463_Init         )
 	INES_BOARD( "NTDEC 9012",          	464, Mapper464_Init         )
 	INES_BOARD( "Keybyte Computer",        	466, Mapper466_Init         )
diff --git a/src/ines.h b/src/ines.h
index 2a489cf..4afc8c8 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -328,6 +328,7 @@ void Mapper443_Init(CartInfo *);
 void Mapper444_Init(CartInfo *);
 void Mapper452_Init(CartInfo *);
 void Mapper456_Init(CartInfo *);
+void Mapper459_Init(CartInfo *);
 void Mapper463_Init(CartInfo *);
 void Mapper464_Init(CartInfo *);
 void Mapper466_Init(CartInfo *);