diff --git a/src/boards/285.c b/src/boards/285.c
new file mode 100644
index 0000000..9c90393
--- /dev/null
+++ b/src/boards/285.c
@@ -0,0 +1,78 @@
+/* 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 uint8 pad;
+
+static void sync_submapper0 () {
+	if (Latch_data &0x40)
+		setprg32(0x8000, Latch_data >>1);
+	else {
+		setprg16(0x8000, Latch_data);
+		setprg16(0xC000, Latch_data |7);
+	}
+	setchr8(0);
+	if (Latch_data &0x80)
+		setmirror(Latch_data &0x20? MI_1: MI_0);
+	else
+		setmirror(Latch_data &0x20? MI_H: MI_V);
+}
+
+static void sync_submapper1 () {
+	if (Latch_data &0x40)
+		setprg32(0x8000, Latch_data >>1 &0x03 | Latch_data >>2 &~0x03);
+	else {
+		setprg16(0x8000, Latch_data >>1 &~0x07 | Latch_data &0x07);
+		setprg16(0xC000, Latch_data >>1        |             0x07);
+	}
+	setchr8(0);
+	if (Latch_data &0x80)
+		setmirror(Latch_data &0x20? MI_1: MI_0);
+	else
+		setmirror(Latch_data &0x08? MI_H: MI_V);
+}
+
+static DECLFR (readPad) {
+	if (A &0x80) return pad >= 20? (4 | pad % 20): 0; else
+	if (A &0x40) return pad >= 16? (4 | pad % 16): 0; else
+	if (A &0x20) return pad >= 12? (4 | pad % 12): 0; else
+	if (A &0x10) return pad >=  8? (4 | pad % 8):  0; else
+	return pad >= 8? 0: pad &7;
+}
+
+static void power() {
+	pad = 0;
+	Latch_power();
+	SetReadHandler(0x5000, 0x5FFF, readPad);
+}
+
+static void reset() {
+	pad = ++pad %24;
+	Latch_clear();
+}
+
+void Mapper285_Init (CartInfo *info) {
+	Latch_init(info, info->submapper ==1? sync_submapper1: sync_submapper0, 0x8000, 0xFFFF, NULL);
+	info->Power = power;
+	info->Reset = reset;
+	AddExState(&pad, 1, 0, "DIPS");
+}
diff --git a/src/boards/573.c b/src/boards/573.c
index c49243d..9829cce 100644
--- a/src/boards/573.c
+++ b/src/boards/573.c
@@ -44,5 +44,5 @@ static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue)
 
 void Mapper573_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, trapLatchWrite);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/579.c b/src/boards/579.c
index 8490691..2170c21 100644
--- a/src/boards/579.c
+++ b/src/boards/579.c
@@ -45,5 +45,5 @@ static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue)
 
 void Mapper579_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, trapLatchWrite);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/580.c b/src/boards/580.c
index 963c8ae..724c297 100644
--- a/src/boards/580.c
+++ b/src/boards/580.c
@@ -35,5 +35,5 @@ static void sync () {
 
 void Mapper580_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/581.c b/src/boards/581.c
index 54dbce4..e35c8ac 100644
--- a/src/boards/581.c
+++ b/src/boards/581.c
@@ -44,5 +44,5 @@ static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue)
 
 void Mapper581_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, trapLatchWrite);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/583.c b/src/boards/583.c
index 483e3ed..37ef1f4 100644
--- a/src/boards/583.c
+++ b/src/boards/583.c
@@ -46,5 +46,5 @@ static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue)
 
 void Mapper583_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, trapLatchWrite);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/584.c b/src/boards/584.c
new file mode 100644
index 0000000..45519aa
--- /dev/null
+++ b/src/boards/584.c
@@ -0,0 +1,59 @@
+/* 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"
+
+static uint8 reg[2];
+
+static void sync () {
+	if (reg[0] &0x20)
+		setprg32(0x8000, reg[0] >>1);
+	else {
+		setprg16(0x8000, reg[0]);
+		setprg16(0xC000, reg[0]);
+	}
+	setchr8(reg[1]);
+	setmirror(reg[1] &0x20? MI_V: MI_H);
+}
+
+static DECLFW(writeReg) {
+	if (A &0x100) {
+		reg[A >>13 &1] = V;
+		sync();
+	}
+}
+
+static void power() {
+	SetReadHandler(0x6000, 0xFFFF, CartBR);
+	SetWriteHandler(0x4020, 0x7FFF, writeReg);
+	reg[0] = reg[1] = 0;
+	sync();
+}
+
+static void stateRestore(int version) {
+	sync();
+}
+
+void Mapper584_Init (CartInfo *info) {
+	info->Reset = power;
+	info->Power = power;
+	GameStateRestore = stateRestore;
+	AddExState(reg, 2, 0, "REGS");
+}
diff --git a/src/boards/585.c b/src/boards/585.c
index 52dbdd0..0e60577 100644
--- a/src/boards/585.c
+++ b/src/boards/585.c
@@ -46,8 +46,7 @@ static void power() {
 
 static void reset() {
 	pad += 0x20;
-	Latch_address = 0;
-	sync();
+	Latch_clear();
 }
 
 void Mapper585_Init (CartInfo *info) {
diff --git a/src/boards/586.c b/src/boards/586.c
index 2cf2bfc..3872a9b 100644
--- a/src/boards/586.c
+++ b/src/boards/586.c
@@ -33,5 +33,5 @@ static void sync () {
 
 void Mapper586_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/589.c b/src/boards/589.c
index a613f08..6610761 100644
--- a/src/boards/589.c
+++ b/src/boards/589.c
@@ -39,5 +39,5 @@ static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue)
 
 void Mapper589_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, trapLatchWrite);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/590.c b/src/boards/590.c
index e77b6dd..2d90cb1 100644
--- a/src/boards/590.c
+++ b/src/boards/590.c
@@ -33,5 +33,5 @@ static void sync () {
 
 void Mapper590_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/591.c b/src/boards/591.c
index d2f3ad1..dc417d2 100644
--- a/src/boards/591.c
+++ b/src/boards/591.c
@@ -34,5 +34,5 @@ static void sync () {
 
 void Mapper591_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/592.c b/src/boards/592.c
index 6464e04..3c91f35 100644
--- a/src/boards/592.c
+++ b/src/boards/592.c
@@ -30,5 +30,5 @@ static void sync () {
 
 void Mapper592_Init (CartInfo *info) {
 	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
-	info->Reset = Latch_power;
+	info->Reset = Latch_clear;
 }
diff --git a/src/boards/asic_latch.c b/src/boards/asic_latch.c
index 4eebcfd..f94286b 100644
--- a/src/boards/asic_latch.c
+++ b/src/boards/asic_latch.c
@@ -41,7 +41,7 @@ DECLFW(Latch_write) {
 	Latch_cbSync();
 }
 
-static void Latch_clear () {
+void Latch_clear () {
 	Latch_address = 0;
 	Latch_data = 0;
 	Latch_cbSync();
diff --git a/src/boards/asic_latch.h b/src/boards/asic_latch.h
index 07e4c87..80c9ef2 100644
--- a/src/boards/asic_latch.h
+++ b/src/boards/asic_latch.h
@@ -27,6 +27,7 @@ extern uint8 Latch_data;
 DECLFW (Latch_write);
 void Latch_addExState ();
 void Latch_restore (int);
+void Latch_clear ();
 void Latch_power ();
 void Latch_activate (uint8, void (*)(), uint16, uint16, void (*)(uint16*, uint8*, uint8));
 void Latch6_activate (uint8, void (*)(), uint16, uint16, void (*)(uint16*, uint8*, uint8));
diff --git a/src/boards/datalatch.c b/src/boards/datalatch.c
index 09a0da6..32d3d92 100644
--- a/src/boards/datalatch.c
+++ b/src/boards/datalatch.c
@@ -507,53 +507,6 @@ void Mapper538_Init(CartInfo *info) {
 	info->Power = M538Power;
 }
 
-/* ------------------ A65AS --------------------------- */
-
-/* actually, there is two cart in one... First have extra mirroring
- * mode (one screen) and 32K bankswitching, second one have only
- * 16 bankswitching mode and normal mirroring... But there is no any
- * correlations between modes and they can be used in one mapper code.
- *
- * Submapper 0 - 3-in-1 (N068)
- * Submapper 0 - 3-in-1 (N080)
- * Submapper 1 - 4-in-1 (JY-066)
- */
-
-static int A65ASsubmapper;
-static void BMCA65ASSync(void) {
-	if (latche & 0x40)
-		setprg32(0x8000, (latche >> 1) & 0x0F);
-	else {
-		if (A65ASsubmapper == 1) {
-			setprg16(0x8000, ((latche & 0x30) >> 1) | (latche & 7));
-			setprg16(0xC000, ((latche & 0x30) >> 1) | 7);
-		} else {
-			setprg16(0x8000, latche & 0x0F);
-			setprg16(0xC000, latche & 0x0F | 7);
-		}
-	}
-	setchr8(0);
-	if (latche & 0x80)
-		setmirror(MI_0 + (((latche >> 5) & 1)));
-	else {
-		if (A65ASsubmapper == 1)
-			setmirror(latche &0x08? MI_H: MI_V);
-		else
-			setmirror(latche &0x20? MI_H: MI_V);
-	}
-}
-
-void BMCA65AS_Reset() {
-	latche =0;
-	BMCA65ASSync();
-}
-
-void BMCA65AS_Init(CartInfo *info) {
-	A65ASsubmapper = info->submapper;
-	info->Reset = BMCA65AS_Reset;
-	Latch_Init(info, BMCA65ASSync, 0, 0x8000, 0xFFFF, 0, 0);
-}
-
 /*------------------ BMC-11160 ---------------------------*/
 /* Simple BMC discrete mapper by TXC */
 
diff --git a/src/ines.c b/src/ines.c
index 79a2696..bab8f75 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -734,7 +734,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "YY860417C",                281, Mapper281_Init         )
 	INES_BOARD( "860224C",                  282, Mapper282_Init         )
 	INES_BOARD( "GS-2004/GS-2013",          283, Mapper283_Init         )
-	INES_BOARD( "A65AS",                    285, BMCA65AS_Init          )
+	INES_BOARD( "A65AS",                    285, Mapper285_Init         )
 	INES_BOARD( "BS-5",                     286, BMCBS5_Init            )
 	INES_BOARD( "411120-C, 811120-C",       287, BMC411120C_Init        )
 	INES_BOARD( "GKCX1",                    288, Mapper288_Init         )
@@ -960,6 +960,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "ET-156",                   580, Mapper580_Init         )
 	INES_BOARD( "ET-82",                    581, Mapper581_Init         )
 	INES_BOARD( "8203",                     583, Mapper583_Init         )
+	INES_BOARD( "ST-32",                    584, Mapper584_Init         )
 	INES_BOARD( "FE-01-1",                  585, Mapper585_Init         )
 	INES_BOARD( "HN-02",                    586, Mapper586_Init         )
 	INES_BOARD( "3355",                     587, Mapper587_Init         )
diff --git a/src/ines.h b/src/ines.h
index 2a33021..ee54f1d 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -425,6 +425,7 @@ void Mapper579_Init(CartInfo *);
 void Mapper580_Init(CartInfo *);
 void Mapper581_Init(CartInfo *);
 void Mapper583_Init(CartInfo *);
+void Mapper584_Init(CartInfo *);
 void Mapper585_Init(CartInfo *);
 void Mapper586_Init(CartInfo *);
 void Mapper587_Init(CartInfo *);
diff --git a/src/unif.c b/src/unif.c
index a022ec8..7260b1e 100644
--- a/src/unif.c
+++ b/src/unif.c
@@ -437,7 +437,7 @@ static BMAPPING bmap[] = {
 	{ "8237",                       215, UNL8237_Init,          0 },
 	{ "8237A",                      215, UNL8237A_Init,         0 },
 	{ "830118C",                    348, BMC830118C_Init,       0 },
-	{ "A65AS",                      285, BMCA65AS_Init,         0 },
+	{ "A65AS",                      285, Mapper285_Init,        0 },
 	{ "AB-G1L",                     428, Mapper428_Init,        0 },
 	{ "WELL-NO-DG450",              428, Mapper428_Init,        0 },
 	{ "TF2740",                     428, Mapper428_Init,        0 },
diff --git a/src/unif.h b/src/unif.h
index 353235a..4a07fe4 100644
--- a/src/unif.h
+++ b/src/unif.h
@@ -30,7 +30,7 @@ void BMC411120C_Init(CartInfo *info);
 void BMC64in1nr_Init(CartInfo *info);
 void BMC810544CA1_Init(CartInfo *info);
 void BMC830118C_Init(CartInfo *info);
-void BMCA65AS_Init(CartInfo *info);
+void Mapper285_Init(CartInfo *info);
 void BMCBS5_Init(CartInfo *info);
 void BMCD1038_Init(CartInfo *info);
 void BMCFK23CA_Init(CartInfo *info);