diff --git a/trunk/src/boards/8157.cpp b/trunk/src/boards/8157.cpp
index aa3061e2..287be082 100644
--- a/trunk/src/boards/8157.cpp
+++ b/trunk/src/boards/8157.cpp
@@ -16,30 +16,41 @@
  * 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
+ *
+ * GG1 boards, similar to T-262, with no Data latch
+ *
  */
 
 #include "mapinc.h"
 
 static uint16 cmdreg;
-static uint8 invalid_data;
+static uint8 reset;
 static SFORMAT StateRegs[] =
 {
-	{ &invalid_data, 1, "INVD" },
+	{ &reset, 1, "REST" },
 	{ &cmdreg, 2, "CREG" },
 	{ 0 }
 };
 
 static void Sync(void) {
-	setprg16r((cmdreg & 0x060) >> 5, 0x8000, (cmdreg & 0x01C) >> 2);
-	setprg16r((cmdreg & 0x060) >> 5, 0xC000, (cmdreg & 0x200) ? (~0) : 0);
+	uint32 base = ((cmdreg & 0x060) | ((cmdreg & 0x100) >> 1)) >> 2;
+	uint32 bank = (cmdreg & 0x01C) >> 2;
+	uint32 lbank = (cmdreg & 0x200) ? 7 : ((cmdreg & 0x80) ? bank : 0);
+	if (PRGptr[1]) {
+		setprg16r(base >> 3, 0x8000, bank);        // for versions with split ROMs
+		setprg16r(base >> 3, 0xC000, lbank);
+	} else {
+		setprg16(0x8000, base | bank);
+		setprg16(0xC000, base | lbank);
+	}
 	setmirror(((cmdreg & 2) >> 1) ^ 1);
 }
 
 static DECLFR(UNL8157Read) {
-	if (invalid_data && cmdreg & 0x100)
-		return 0xFF;
-	else
-		return CartBR(A);
+	if ((cmdreg & 0x100) && (PRGsize[0] < (1024 * 1024))) {
+		A = (A & 0xFFF0) + reset;
+	}
+	return CartBR(A);
 }
 
 static DECLFW(UNL8157Write) {
@@ -51,14 +62,14 @@ static void UNL8157Power(void) {
 	setchr8(0);
 	SetWriteHandler(0x8000, 0xFFFF, UNL8157Write);
 	SetReadHandler(0x8000, 0xFFFF, UNL8157Read);
-	cmdreg = 0x200;
-	invalid_data = 1;
+	cmdreg = reset = 0;
 	Sync();
 }
 
 static void UNL8157Reset(void) {
-	cmdreg = 0;
-	invalid_data ^= 1;
+	cmdreg = reset = 0;
+	reset++;
+	reset &= 0x1F;
 	Sync();
 }
 
diff --git a/trunk/src/boards/supervision.cpp b/trunk/src/boards/supervision.cpp
index 5dae7654..46be8ed2 100644
--- a/trunk/src/boards/supervision.cpp
+++ b/trunk/src/boards/supervision.cpp
@@ -21,45 +21,67 @@
 #include "mapinc.h"
 
 static uint8 cmd0, cmd1;
+static SFORMAT StateRegs[] =
+{
+	{ &cmd0, 1, "L1" },
+	{ &cmd1, 1, "L2" },
+	{ 0 }
+};
 
-static void DoSuper(void) {
-	setprg8r((cmd0 & 0xC) >> 2, 0x6000, ((cmd0 & 0x3) << 4) | 0xF);
+static void Sync(void) {
+	setchr8(0);
+	if (PRGptr[1])
+		setprg8r((cmd0 & 0xC) >> 2, 0x6000, ((cmd0 & 0x3) << 4) | 0xF);
+	else
+		setprg8(0x6000, (((cmd0 & 0xF) << 4) | 0xF) + 4);
 	if (cmd0 & 0x10) {
-		setprg16r((cmd0 & 0xC) >> 2, 0x8000, ((cmd0 & 0x3) << 3) | (cmd1 & 7));
-		setprg16r((cmd0 & 0xC) >> 2, 0xc000, ((cmd0 & 0x3) << 3) | 7);
+		if (PRGptr[1]) {
+			setprg16r((cmd0 & 0xC) >> 2, 0x8000, ((cmd0 & 0x3) << 3) | (cmd1 & 7));
+			setprg16r((cmd0 & 0xC) >> 2, 0xc000, ((cmd0 & 0x3) << 3) | 7);
+		} else {
+			setprg16(0x8000, (((cmd0 & 0xF) << 3) | (cmd1 & 7)) + 2);
+			setprg16(0xc000, (((cmd0 & 0xF) << 3) | 7) + 2);
+		}
 	} else
-		setprg32r(4, 0x8000, 0);
+		if (PRGptr[4])
+			setprg32r(4, 0x8000, 0);
+		else
+			setprg32(0x8000, 0);
 	setmirror(((cmd0 & 0x20) >> 5) ^ 1);
 }
 
-static DECLFW(SuperWrite) {
+static DECLFW(SuperWriteLo) {
 	if (!(cmd0 & 0x10)) {
 		cmd0 = V;
-		DoSuper();
+		Sync();
 	}
 }
 
-static DECLFW(SuperHi) {
+static DECLFW(SuperWriteHi) {
 	cmd1 = V;
-	DoSuper();
+	Sync();
+}
+
+static void SuperPower(void) {
+	SetWriteHandler(0x6000, 0x7FFF, SuperWriteLo);
+	SetWriteHandler(0x8000, 0xFFFF, SuperWriteHi);
+	SetReadHandler(0x6000, 0xFFFF, CartBR);
+	cmd0 = cmd1 = 0;
+	Sync();
 }
 
 static void SuperReset(void) {
-	SetWriteHandler(0x6000, 0x7FFF, SuperWrite);
-	SetWriteHandler(0x8000, 0xFFFF, SuperHi);
-	SetReadHandler(0x6000, 0xFFFF, CartBR);
 	cmd0 = cmd1 = 0;
-	setprg32r(4, 0x8000, 0);
-	setchr8(0);
+	Sync();
 }
 
 static void SuperRestore(int version) {
-	DoSuper();
+	Sync();
 }
 
 void Supervision16_Init(CartInfo *info) {
-	AddExState(&cmd0, 1, 0, "L1");
-	AddExState(&cmd1, 1, 0, "L2");
-	info->Power = SuperReset;
+	info->Power = SuperPower;
+	info->Reset = SuperReset;
 	GameStateRestore = SuperRestore;
+	AddExState(&StateRegs, ~0, 0, 0);
 }
diff --git a/trunk/src/boards/t-262.cpp b/trunk/src/boards/t-262.cpp
index 0b419992..01b873b3 100644
--- a/trunk/src/boards/t-262.cpp
+++ b/trunk/src/boards/t-262.cpp
@@ -20,26 +20,28 @@
 
 #include "mapinc.h"
 
-static uint8 bank, base, lock, mirr;
+static uint8 bank, base, lock, mirr, mode;
 static SFORMAT StateRegs[] =
 {
 	{ &bank, 1, "BANK" },
 	{ &base, 1, "BASE" },
 	{ &lock, 1, "LOCK" },
 	{ &mirr, 1, "MIRR" },
+	{ &mode, 1, "MODE" },
 	{ 0 }
 };
 
 static void Sync(void) {
 	setchr8(0);
 	setprg16(0x8000, base | bank);
-	setprg16(0xC000, base | 7);
+	setprg16(0xC000, base | (mode ? bank : 7));
 	setmirror(mirr);
 }
 
 static DECLFW(BMCT262Write) {
 	if (!lock) {
 		base = ((A & 0x60) >> 2) | ((A & 0x100) >> 3);
+		mode = A & 0x80;
 		mirr = ((A & 2) >> 1) ^ 1;
 		lock = (A & 0x2000) >> 13;
 	}
@@ -48,14 +50,14 @@ static DECLFW(BMCT262Write) {
 }
 
 static void BMCT262Power(void) {
-	lock = bank = base = 0;
+	lock = bank = base = mode = 0;
 	Sync();
 	SetWriteHandler(0x8000, 0xFFFF, BMCT262Write);
 	SetReadHandler(0x8000, 0xFFFF, CartBR);
 }
 
 static void BMCT262Reset(void) {
-	lock = bank = base = 0;
+	lock = bank = base = mode = 0;
 	Sync();
 }
 
diff --git a/trunk/src/ines.cpp b/trunk/src/ines.cpp
index 14fcbd2e..4a622a4d 100644
--- a/trunk/src/ines.cpp
+++ b/trunk/src/ines.cpp
@@ -435,7 +435,7 @@ typedef struct {
 //size
 static int not_power2[] =
 {
-	198, 228
+	53, 198, 228
 };
 typedef struct {
 	char *name;
@@ -497,7 +497,7 @@ static BMAPPINGLocal bmap[] = {
 	{"SMB2j FDS Rev. A",	 50, Mapper50_Init},
 	{"11-in-1 BALL SERIES",	 51, Mapper51_Init},	// 1993 year version
 	{"MMC3 BMC PIRATE D",	 52, Mapper52_Init},
-//	{"",					 53, Mapper53_Init},	// iNES version of complex UNIF board, can't emulate properly as iNES
+	{"SUPERVISION 16-in-1",	 53, Supervision16_Init},
 //	{"",					 54, Mapper54_Init},
 //	{"",					 55, Mapper55_Init},
 //	{"",					 56, Mapper56_Init},