diff --git a/makefile.burn_rules b/makefile.burn_rules
index faaf7fe6e..8ae881058 100644
--- a/makefile.burn_rules
+++ b/makefile.burn_rules
@@ -36,7 +36,7 @@ drvobj	= 	d_dodonpachi.o d_donpachi.o d_esprade.o d_feversos.o d_gaia.o d_guwang
 			\
 			d_arkanoid.o d_ashnojoe.o d_asuka.o d_bublbobl.o d_chaknpop.o d_darius2.o d_flstory.o d_lkage.o d_minivdr.o \
 			d_othunder.o d_retofinv.o d_slapshot.o d_superchs.o d_taitob.o d_taitof2.o d_taitomisc.o d_taitox.o d_taitoz.o \
-			d_tnzs.o \
+			d_tnzs.o d_wyvernf0.o \
 			\
 			d_batrider.o d_batsugun.o d_battleg.o d_bbakraid.o d_demonwld.o d_dogyuun.o d_fixeight.o d_ghox.o d_hellfire.o \
 			d_kbash.o d_kbash2.o d_mahoudai.o d_outzone.o d_pipibibs.o d_rallybik.o d_samesame.o d_shippumd.o d_snowbro2.o \
diff --git a/src/burn/drv/taito/d_wyvernf0.cpp b/src/burn/drv/taito/d_wyvernf0.cpp
new file mode 100644
index 000000000..c097faf52
--- /dev/null
+++ b/src/burn/drv/taito/d_wyvernf0.cpp
@@ -0,0 +1,757 @@
+// FB Alpha Wyvern F-0 driver module
+// Based on MAME driver by Luca Elia
+
+/*
+	To do / known bugs
+
+	Sprites aren't quite right -- see planes on intro vs MAME
+	https://www.youtube.com/watch?v=TUVeU0RnIGc
+
+	Sound is missing msm5232 core
+	I think YM2149 is not exactly an ay8910, may need work
+	Clean up sprite routine, pretty much stright code ripped from mame atm
+	test! test! test!
+*/
+
+#include "tiles_generic.h"
+#include "z80_intf.h"
+#include "driver.h"
+extern "C" {
+#include "ay8910.h"
+}
+
+static UINT8 *AllMem;
+static UINT8 *MemEnd;
+static UINT8 *AllRam;
+static UINT8 *RamEnd;
+static UINT8 *DrvZ80ROM0;
+static UINT8 *DrvZ80ROM1;
+static UINT8 *DrvGfxROM0;
+static UINT8 *DrvGfxROM1;
+static UINT8 *DrvZ80RAM0;
+static UINT8 *DrvFgRAM;
+static UINT8 *DrvBgRAM;
+static UINT8 *DrvSprRAM;
+static UINT8 *DrvPalRAM;
+static UINT8 *DrvObjRAM;
+static UINT8 *DrvZ80RAM1;
+
+static UINT8 *soundlatch;
+static UINT8 *flipscreen;
+static UINT8 *coin_lockout;
+static UINT8 *scroll;
+static UINT8 *pending_nmi;
+static UINT8 *nmi_enable;
+static UINT8 *DrvZ80ROMBank;
+static UINT8 *DrvZ80RAMBank;
+static UINT8 *mcu_value;
+
+static UINT32 *DrvPalette;
+static UINT8 DrvRecalc;
+
+static INT16 *pAY8910Buffer[6];
+
+static UINT8  DrvJoy1[8];
+static UINT8  DrvJoy2[8];
+static UINT8  DrvJoy3[8];
+static UINT8  DrvJoy4[8];
+static UINT8  DrvJoy5[8];
+static UINT8  DrvDips[3];
+static UINT8  DrvInputs[5];
+static UINT8  DrvReset;
+
+static struct BurnInputInfo Wyvernf0InputList[] = {
+	{"P1 Coin",		BIT_DIGITAL,	DrvJoy1 + 4,	"p1 coin"	},
+	{"P1 Start",		BIT_DIGITAL,	DrvJoy1 + 0,	"p1 start"	},
+	{"P1 Up",		BIT_DIGITAL,	DrvJoy2 + 5,	"p1 up"		},
+	{"P1 Down",		BIT_DIGITAL,	DrvJoy2 + 4,	"p1 down"	},
+	{"P1 Left",		BIT_DIGITAL,	DrvJoy2 + 2,	"p1 left"	},
+	{"P1 Right",		BIT_DIGITAL,	DrvJoy2 + 3,	"p1 right"	},
+	{"P1 Button 1",		BIT_DIGITAL,	DrvJoy3 + 5,	"p1 fire 1"	},
+	{"P1 Button 2",		BIT_DIGITAL,	DrvJoy3 + 4,	"p1 fire 2"	},
+	{"P1 Button 3",		BIT_DIGITAL,	DrvJoy3 + 3,	"p1 fire 3"	},
+
+	{"P2 Coin",		BIT_DIGITAL,	DrvJoy1 + 5,	"p2 coin"	},
+	{"P2 Start",		BIT_DIGITAL,	DrvJoy1 + 1,	"p2 start"	},
+	{"P2 Up",		BIT_DIGITAL,	DrvJoy4 + 5,	"p2 up"		},
+	{"P2 Down",		BIT_DIGITAL,	DrvJoy4 + 4,	"p2 down"	},
+	{"P2 Left",		BIT_DIGITAL,	DrvJoy4 + 2,	"p2 left"	},
+	{"P2 Right",		BIT_DIGITAL,	DrvJoy4 + 3,	"p2 right"	},
+	{"P2 Button 1",		BIT_DIGITAL,	DrvJoy5 + 5,	"p2 fire 1"	},
+	{"P2 Button 2",		BIT_DIGITAL,	DrvJoy5 + 4,	"p2 fire 2"	},
+	{"P2 Button 3",		BIT_DIGITAL,	DrvJoy5 + 3,	"p2 fire 3"	},
+
+	{"Reset",		BIT_DIGITAL,	&DrvReset,	"reset"		},
+	{"Service",		BIT_DIGITAL,	DrvJoy1 + 2,	"service"	},
+	{"Tilt",		BIT_DIGITAL,	DrvJoy1 + 3,	"tilt"		},
+	{"Dip A",		BIT_DIPSWITCH,	DrvDips + 0,	"dip"		},
+	{"Dip B",		BIT_DIPSWITCH,	DrvDips + 1,	"dip"		},
+	{"Dip C",		BIT_DIPSWITCH,	DrvDips + 2,	"dip"		},
+};
+
+STDINPUTINFO(Wyvernf0)
+
+static struct BurnDIPInfo Wyvernf0DIPList[]=
+{
+	{0x15, 0xff, 0xff, 0x6f, NULL			},
+	{0x16, 0xff, 0xff, 0x00, NULL			},
+	{0x17, 0xff, 0xff, 0xdc, NULL			},
+
+	{0   , 0xfe, 0   ,    4, "Bonus Life"		},
+	{0x15, 0x01, 0x03, 0x00, "?? 0"			},
+	{0x15, 0x01, 0x03, 0x01, "?? 1"			},
+	{0x15, 0x01, 0x03, 0x02, "?? 2"			},
+	{0x15, 0x01, 0x03, 0x03, "?? 3"			},
+
+	{0   , 0xfe, 0   ,    2, "Free Play"		},
+	{0x15, 0x01, 0x04, 0x04, "Off"			},
+	{0x15, 0x01, 0x04, 0x00, "On"			},
+	
+	{0   , 0xfe, 0   ,    4, "Lives"		},
+	{0x15, 0x01, 0x18, 0x00, "2"			},
+	{0x15, 0x01, 0x18, 0x08, "3"			},
+	{0x15, 0x01, 0x18, 0x10, "4"			},
+	{0x15, 0x01, 0x18, 0x18, "5"			},
+
+	{0   , 0xfe, 0   ,    2, "Flip Screen"		},
+	{0x15, 0x01, 0x40, 0x40, "Off"			},
+	{0x15, 0x01, 0x40, 0x00, "On"			},
+
+	{0   , 0xfe, 0   ,    2, "Cabinet"		},
+	{0x15, 0x01, 0x80, 0x00, "Upright"		},
+	{0x15, 0x01, 0x80, 0x80, "Cocktail"		},
+
+	{0   , 0xfe, 0   ,    16, "Coin A"		},
+	{0x16, 0x01, 0x0f, 0x0f, "9 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x0e, "8 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x0d, "7 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x0c, "6 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x0b, "5 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x0a, "4 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x09, "3 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x08, "2 Coins 1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x00, "1 Coin  1 Credits"	},
+	{0x16, 0x01, 0x0f, 0x01, "1 Coin  2 Credits"	},
+	{0x16, 0x01, 0x0f, 0x02, "1 Coin  3 Credits"	},
+	{0x16, 0x01, 0x0f, 0x03, "1 Coin  4 Credits"	},
+	{0x16, 0x01, 0x0f, 0x04, "1 Coin  5 Credits"	},
+	{0x16, 0x01, 0x0f, 0x05, "1 Coin  6 Credits"	},
+	{0x16, 0x01, 0x0f, 0x06, "1 Coin  7 Credits"	},
+	{0x16, 0x01, 0x0f, 0x07, "1 Coin  8 Credits"	},
+
+	{0   , 0xfe, 0   ,    16, "Coin B"		},
+	{0x16, 0x01, 0xf0, 0xf0, "9 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0xe0, "8 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0xd0, "7 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0xc0, "6 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0xb0, "5 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0xa0, "4 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0x90, "3 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0x80, "2 Coins 1 Credits"	},
+	{0x16, 0x01, 0xf0, 0x00, "1 Coin  1 Credits"	},
+	{0x16, 0x01, 0xf0, 0x10, "1 Coin  2 Credits"	},
+	{0x16, 0x01, 0xf0, 0x20, "1 Coin  3 Credits"	},
+	{0x16, 0x01, 0xf0, 0x30, "1 Coin  4 Credits"	},
+	{0x16, 0x01, 0xf0, 0x40, "1 Coin  5 Credits"	},
+	{0x16, 0x01, 0xf0, 0x50, "1 Coin  6 Credits"	},
+	{0x16, 0x01, 0xf0, 0x60, "1 Coin  7 Credits"	},
+	{0x16, 0x01, 0xf0, 0x70, "1 Coin  8 Credits"	},
+
+	{0   , 0xfe, 0   ,    2, "Coinage Display"	},
+	{0x17, 0x01, 0x10, 0x00, "No"			},
+	{0x17, 0x01, 0x10, 0x10, "Yes"			},
+
+	{0   , 0xfe, 0   ,    2, "Copyright"		},
+	{0x17, 0x01, 0x20, 0x00, "Taito Corporation"	},
+	{0x17, 0x01, 0x20, 0x20, "Taito Corp. 1985"	},
+
+	{0   , 0xfe, 0   ,    2, "Invulnerability"	},
+	{0x17, 0x01, 0x40, 0x40, "Off"			},
+	{0x17, 0x01, 0x40, 0x00, "On"			},
+
+	{0   , 0xfe, 0   ,    2, "Coin Slots"		},
+	{0x17, 0x01, 0x80, 0x00, "1"			},
+	{0x17, 0x01, 0x80, 0x80, "2"			},
+};
+
+STDDIPINFO(Wyvernf0)
+
+static inline void palette_update(INT32 i)
+{
+	INT32 r = DrvPalRAM[i+0] & 0x0f;
+	INT32 g = DrvPalRAM[i+1] >> 4;
+	INT32 b = DrvPalRAM[i+1] & 0x0f;
+
+	DrvPalette[i/2] = BurnHighCol(r | (r << 4), g | (g << 4) ,b | (b << 4), 0);
+}
+
+static void rambankswitch(INT32 data)
+{
+	INT32 bank = (data & 0x80) ? 0x1000 : 0;
+
+	*DrvZ80RAMBank = data;
+
+	*coin_lockout = (~data & 0x40) ? 0xcf : 0xff;
+
+	*flipscreen = data & 0x03;
+
+	ZetMapMemory(DrvObjRAM + bank, 0x9000, 0x9fff, ZET_RAM);
+}
+
+static void rombankswitch(INT32 data)
+{
+	INT32 bank = 0x10000 + (data & 0x07) * 0x2000;
+
+	*DrvZ80ROMBank = data;
+
+	ZetMapMemory(DrvZ80ROM0 + bank,	0xa000, 0xbfff, ZET_ROM);
+}
+
+static void __fastcall wyvernf0_main_write(UINT16 address, UINT8 data)
+{
+	if ((address & 0xfc00) == 0xd800) {
+		DrvPalRAM[address & 0x3ff] = data;
+		palette_update(address & 0x3fe);
+		return;
+	}
+
+	switch (address)
+	{
+		case 0xd000:
+		return;		// nop
+
+		case 0xd100:
+			rambankswitch(data);
+		return;
+
+		case 0xd200:
+			rombankswitch(data);
+		return;
+
+		case 0xd300:
+		case 0xd301:
+		case 0xd302:
+		case 0xd303:
+			scroll[address & 0x03] = data;
+		return;
+
+		case 0xd400:
+			*mcu_value = data;
+		return;
+
+		case 0xd610:
+		{
+			*soundlatch = data;
+			if (*nmi_enable) {
+				ZetClose();
+				ZetOpen(1);
+				ZetNmi();
+				ZetClose();
+				ZetOpen(0);
+			} else {
+				*pending_nmi = 1;
+			}
+		}
+		return;
+
+		case 0xdc00:
+		return; // nop
+	}
+}
+
+static UINT8 __fastcall wyvernf0_main_read(UINT16 address)
+{
+	switch (address)
+	{
+		case 0xd400:
+			return ((*mcu_value & 0x73) == 0x73) ? 0x42: 0;
+
+		case 0xd401:
+			return 0x03; // mcu status
+
+		case 0xd600:
+		case 0xd601:
+		case 0xd602:
+			return DrvDips[address - 0xd600];
+
+		case 0xd603:
+		case 0xd604:
+		case 0xd605:
+		case 0xd606:
+		case 0xd607:
+			return DrvInputs[address - 0xd603];
+
+		case 0xd610:
+			return *soundlatch;
+	}
+
+	return 0;
+}
+
+static void __fastcall wyvernf0_sound_write(UINT16 address, UINT8 data)
+{
+	if ((address & 0xfff0) == 0xc900) {
+		// MSM5232Write(address & 0x0f, data);
+		return;
+	}
+
+	switch (address)
+	{
+		case 0xc800:
+		case 0xc801:
+		case 0xc802:
+		case 0xc803:
+			AY8910Write((address/2) & 1, address & 1, data);
+		return;
+
+		case 0xd000:
+			*soundlatch = data;
+		return;
+
+		case 0xd200:
+		{
+			*nmi_enable = 1;
+
+			if (*pending_nmi)
+			{
+				ZetNmi();
+				*pending_nmi = 0;
+			}
+		}
+		return;
+
+		case 0xd400:
+			*nmi_enable = 0;
+		return;
+
+		case 0xd600:
+		return; // ??
+	}
+}
+
+static UINT8 __fastcall wyvernf0_sound_read(UINT16 address)
+{
+	switch (address)
+	{
+		case 0xd000:
+			return *soundlatch;
+	}
+
+	return 0;
+}
+
+static INT32 DrvDoReset()
+{
+	memset (AllRam, 0, RamEnd - AllRam);
+
+	ZetOpen(0);
+	ZetReset();
+	rombankswitch(0);
+	rambankswitch(0);
+	ZetClose();
+
+	ZetOpen(1);
+	ZetReset();
+	ZetClose();
+
+	AY8910Reset(0);
+	AY8910Reset(1);
+
+	// MSM5232Reset();
+
+	return 0;
+}
+
+static INT32 MemIndex()
+{
+	UINT8 *Next; Next = AllMem;
+
+	DrvZ80ROM0		= Next; Next += 0x020000;
+	DrvZ80ROM1		= Next; Next += 0x010000;
+
+	DrvGfxROM0		= Next; Next += 0x020000;
+	DrvGfxROM1		= Next; Next += 0x010000;
+
+	DrvPalette		= (UINT32*)Next; Next += 0x0200 * sizeof(UINT32);
+
+	AllRam			= Next;
+
+	DrvZ80RAM0		= Next; Next += 0x001000;
+	DrvFgRAM		= Next; Next += 0x000800;
+	DrvBgRAM		= Next; Next += 0x000800;
+	DrvSprRAM		= Next; Next += 0x000100;
+	DrvPalRAM		= Next; Next += 0x000400;
+	DrvObjRAM		= Next; Next += 0x002000;
+
+	DrvZ80RAM1		= Next; Next += 0x000800;
+
+	soundlatch		= Next; Next += 0x000001;
+	flipscreen		= Next; Next += 0x000001;
+	coin_lockout		= Next; Next += 0x000001;
+	pending_nmi		= Next; Next += 0x000001;
+	nmi_enable		= Next; Next += 0x000001;
+	scroll			= Next; Next += 0x000004;
+	DrvZ80ROMBank		= Next; Next += 0x000001;
+	DrvZ80RAMBank		= Next; Next += 0x000001;
+	mcu_value		= Next; Next += 0x000001;
+
+	RamEnd			= Next;
+
+	pAY8910Buffer[0]	= (INT16*)Next; Next += nBurnSoundLen * sizeof(INT16);
+	pAY8910Buffer[1]	= (INT16*)Next; Next += nBurnSoundLen * sizeof(INT16);
+	pAY8910Buffer[2]	= (INT16*)Next; Next += nBurnSoundLen * sizeof(INT16);
+	pAY8910Buffer[3]	= (INT16*)Next; Next += nBurnSoundLen * sizeof(INT16);
+	pAY8910Buffer[4]	= (INT16*)Next; Next += nBurnSoundLen * sizeof(INT16);
+	pAY8910Buffer[5]	= (INT16*)Next; Next += nBurnSoundLen * sizeof(INT16);
+
+	MemEnd			= Next;
+
+	return 0;
+}
+
+static void DrvGfxDecode(UINT8 *rom, INT32 len)
+{
+	INT32 Planes[4] = { RGN_FRAC(len,0,4), RGN_FRAC(len,1,4), RGN_FRAC(len,2,4), RGN_FRAC(len,3,4) };
+	INT32 XOffs[8] = { STEP8(7,-1) };
+	INT32 YOffs[8] = { STEP8(0,8) };
+
+	UINT8 *tmp = (UINT8*)BurnMalloc(len);
+	if (tmp == NULL) {
+		return;
+	}
+
+	memcpy (tmp, rom, len);
+
+	GfxDecode(((len/4)*8)/(8*8), 4, 8, 8, Planes, XOffs, YOffs, 0x040, tmp, rom);
+
+	BurnFree(tmp);
+}
+
+static INT32 DrvInit()
+{
+	AllMem = NULL;
+	MemIndex();
+	INT32 nLen = MemEnd - (UINT8 *)0;
+	if ((AllMem = (UINT8 *)BurnMalloc(nLen)) == NULL) return 1;
+	memset(AllMem, 0, nLen);
+	MemIndex();
+
+	{
+		if (BurnLoadRom(DrvZ80ROM0 + 0x00000,  0, 1)) return 1;
+		if (BurnLoadRom(DrvZ80ROM0 + 0x04000,  1, 1)) return 1;
+		if (BurnLoadRom(DrvZ80ROM0 + 0x10000,  2, 1)) return 1;
+		if (BurnLoadRom(DrvZ80ROM0 + 0x14000,  3, 1)) return 1;
+		if (BurnLoadRom(DrvZ80ROM0 + 0x18000,  4, 1)) return 1;
+		if (BurnLoadRom(DrvZ80ROM0 + 0x1c000,  5, 1)) return 1;
+
+		if (BurnLoadRom(DrvZ80ROM1 + 0x00000,  6, 1)) return 1;
+		memset (DrvZ80ROM1 + 0xe000, 0xff, 0x2000);
+
+		if (BurnLoadRom(DrvGfxROM0 + 0x00000,  7, 1)) return 1;
+		if (BurnLoadRom(DrvGfxROM0 + 0x04000,  8, 1)) return 1;
+		if (BurnLoadRom(DrvGfxROM0 + 0x08000,  9, 1)) return 1;
+		if (BurnLoadRom(DrvGfxROM0 + 0x0c000, 10, 1)) return 1;
+
+		if (BurnLoadRom(DrvGfxROM1 + 0x00000, 11, 1)) return 1;
+		if (BurnLoadRom(DrvGfxROM1 + 0x02000, 12, 1)) return 1;
+		if (BurnLoadRom(DrvGfxROM1 + 0x04000, 13, 1)) return 1;
+		if (BurnLoadRom(DrvGfxROM1 + 0x06000, 14, 1)) return 1;
+
+		DrvGfxDecode(DrvGfxROM0, 0x10000);
+		DrvGfxDecode(DrvGfxROM1, 0x08000);
+	}
+
+	ZetInit(0);
+	ZetOpen(0);
+	ZetMapMemory(DrvZ80ROM0,		0x0000, 0x7fff, ZET_ROM);
+	ZetMapMemory(DrvZ80RAM0,		0x8000, 0x8fff, ZET_RAM);
+	ZetMapMemory(DrvFgRAM,			0xc000, 0xc7ff, ZET_RAM);
+	ZetMapMemory(DrvBgRAM,			0xc800, 0xcfff, ZET_RAM);
+	ZetMapMemory(DrvSprRAM,			0xd500, 0xd5ff, ZET_RAM);
+	ZetMapMemory(DrvPalRAM,			0xd800, 0xdbff, ZET_ROM);
+	ZetSetWriteHandler(wyvernf0_main_write);
+	ZetSetReadHandler(wyvernf0_main_read);
+	ZetClose();
+
+	ZetInit(1);
+	ZetOpen(1);
+	ZetMapMemory(DrvZ80ROM1,		0x0000, 0x3fff, ZET_ROM);
+	ZetMapMemory(DrvZ80RAM1,		0xc000, 0xc7ff, ZET_RAM);
+	ZetMapMemory(DrvZ80ROM1 + 0xe000,	0xe000, 0xefff, ZET_ROM);
+	ZetSetWriteHandler(wyvernf0_sound_write);
+	ZetSetReadHandler(wyvernf0_sound_read);
+	ZetClose();
+
+	AY8910Init(0, 3000000, nBurnSoundRate, NULL, NULL, NULL, NULL);
+	AY8910SetAllRoutes(0, 0.50, BURN_SND_ROUTE_BOTH);
+
+	AY8910Init(1, 3000000, nBurnSoundRate, NULL, NULL, NULL, NULL);
+	AY8910SetAllRoutes(1, 0.50, BURN_SND_ROUTE_BOTH);
+
+	// MSM5232Init();
+
+	GenericTilesInit();
+
+	DrvDoReset();
+
+	return 0;
+}
+
+static INT32 DrvExit()
+{
+	GenericTilesExit();
+
+	ZetExit();
+
+	AY8910Exit(0);
+	AY8910Exit(1);
+
+	// MSM5232Exit();
+
+	BurnFree(AllMem);
+
+	return 0;
+}
+
+static void draw_layer(UINT8 *ram, INT32 color_offset, UINT8 scrollx, UINT8 scrolly)
+{
+	for (INT32 offs = 0; offs < 32 * 32; offs++)
+	{
+		INT32 sx = (offs & 0x1f) * 8;
+		INT32 sy = (offs / 0x20) * 8;
+
+		sx -= scrollx;
+		if (sx < -7) sx += 256;
+		sy -= scrolly;
+		if (sy < -7) sy += 256;
+
+		if (sy >= 224) continue;
+
+		INT32 code = ram[offs * 2] + (ram[offs * 2 + 1] * 256);
+
+		INT32 color = (code >> 12) & 0x07;
+		INT32 flipx = (code >> 15) & 0x01;
+		INT32 flipy = (code >> 14) & 0x01;
+
+		if (flipy) {
+			if (flipx) {
+				Render8x8Tile_Mask_FlipXY_Clip(pTransDraw, code & 0x3ff, sx, sy, color, 4, 0, color_offset, DrvGfxROM1);
+			} else {
+				Render8x8Tile_Mask_FlipY_Clip(pTransDraw, code & 0x3ff, sx, sy, color, 4, 0, color_offset, DrvGfxROM1);
+			}
+		} else {
+			if (flipx) {
+				Render8x8Tile_Mask_FlipX_Clip(pTransDraw, code & 0x3ff, sx, sy, color, 4, 0, color_offset, DrvGfxROM1);
+			} else {
+				Render8x8Tile_Mask_Clip(pTransDraw, code & 0x3ff, sx, sy, color, 4, 0, color_offset, DrvGfxROM1);
+			}
+		}
+	}
+}
+
+static void draw_sprites(INT32 is_foreground)
+{
+	UINT8 *RAM = DrvSprRAM + (is_foreground ? 0x80 : 0);
+
+	for (INT32 offs = 0; offs < 0x80; offs += 4)
+	{
+		int sx, sy, code, color;
+
+		sx = RAM[offs + 3] - (RAM[offs + 2] << 1);
+		sy = 256 - 8 - RAM[offs + 0] - 23;	// center player sprite: 256 - 8 - 0x71 + dy = 256/2-32/2 -> dy = -23
+
+		int flipx = RAM[offs + 2] & 0x40;	// maybe
+		int flipy = RAM[offs + 1] & 0x80;
+
+		if (*flipscreen & 0x01)
+		{
+			flipx = !flipx;
+			sx = 256 - 8 - sx - 3*8;
+		}
+
+		if (*flipscreen & 0x02)
+		{
+			flipy = !flipy;
+			sy = 256 - 8 - sy - 3*8;
+		}
+
+		code = RAM[offs + 1] & 0x7f;
+		color = (RAM[offs + 2] & 0x0f);
+
+		if (is_foreground)
+		{
+			code  += 0x80;
+			color += 0x10;
+		}
+
+		for (int y = 0; y < 4; y++)
+		{
+			for (int x = 0; x < 4; x++)
+			{
+				int objoffs = code * 0x20 + (x + y * 4) * 2;
+
+				INT32 code1 = ((DrvObjRAM[objoffs + 1] & 0x07) << 8) + DrvObjRAM[objoffs];
+
+				INT32 sxx = sx + (flipx ? 3-x : x) * 8 + 10; // + 10???
+				INT32 syy = sy + (flipy ? 3-y : y) * 8 - 16;
+
+				if (flipy) {
+					if (flipx) {
+						Render8x8Tile_Mask_FlipXY_Clip(pTransDraw, code1, sxx, syy, color, 4, 0, 0, DrvGfxROM0);
+					} else {
+						Render8x8Tile_Mask_FlipY_Clip(pTransDraw, code1, sxx, syy, color, 4, 0, 0, DrvGfxROM0);
+					}
+				} else {
+					if (flipx) {
+						Render8x8Tile_Mask_FlipX_Clip(pTransDraw, code1, sxx, syy, color, 4, 0, 0, DrvGfxROM0);
+					} else {
+						Render8x8Tile_Mask_Clip(pTransDraw, code1, sxx, syy, color, 4, 0, 0, DrvGfxROM0);
+					}
+				}
+			}
+		}
+	}
+}
+
+static INT32 DrvDraw()
+{
+	if (DrvRecalc) {
+		for (INT32 i = 0; i < 0x400; i+=2) {
+			palette_update(i);
+		}
+		DrvRecalc = 0;
+	}
+
+	BurnTransferClear();
+
+	draw_layer(DrvBgRAM, 0x00, scroll[2] - 0x12, scroll[3] + 0x10);
+	draw_sprites(0);
+	draw_sprites(1);
+	draw_layer(DrvFgRAM, 0x80, scroll[0] - 0x10, scroll[1] + 0x10);
+
+	BurnTransferCopy(DrvPalette);
+
+	return 0;
+}
+
+static INT32 DrvFrame()
+{
+	if (DrvReset) {
+		DrvDoReset();
+	}
+
+	{
+		memset (DrvInputs, 0, 5);
+
+		for (INT32 i = 0; i < 8; i++) {
+			DrvInputs[0] ^= (DrvJoy1[i] & 1) << i;
+			DrvInputs[1] ^= (DrvJoy2[i] & 1) << i;
+			DrvInputs[2] ^= (DrvJoy3[i] & 1) << i;
+			DrvInputs[3] ^= (DrvJoy4[i] & 1) << i;
+			DrvInputs[4] ^= (DrvJoy5[i] & 1) << i;
+		}
+
+		DrvInputs[0] = (DrvInputs[0] & *coin_lockout);// | 0xc0;
+	}
+
+	INT32 nInterleave = 10;
+	INT32 nCyclesTotal[2] = { 6000000 / 60, 4000000 / 60 };
+	INT32 nCyclesDone[2]  = { 0 , 0 };
+
+	for (INT32 i = 0; i < nInterleave; i++)
+	{
+		ZetOpen(0);
+		INT32 nSegment = nCyclesTotal[0] / nInterleave;
+		nCyclesDone[0] += ZetRun(nSegment);
+		if (i == (nInterleave - 1)) ZetSetIRQLine(0, ZET_IRQSTATUS_AUTO);
+		ZetClose();
+
+		ZetOpen(1);
+		nSegment = nCyclesTotal[1] / nInterleave;
+		nCyclesDone[1] += ZetRun(nSegment);
+		if (i == (nInterleave - 1) || i == (nInterleave / 2) - 1) ZetSetIRQLine(0, ZET_IRQSTATUS_AUTO);
+		ZetClose();
+	}
+
+	if (pBurnSoundOut) {
+		AY8910Render(&pAY8910Buffer[0], pBurnSoundOut, nBurnSoundLen, 0);
+	}
+
+	if (pBurnDraw) {
+		DrvDraw();
+	}
+
+	return 0;
+}
+
+static INT32 DrvScan(INT32 nAction,INT32 *pnMin)
+{
+	struct BurnArea ba;
+
+	if (pnMin) {
+		*pnMin = 0x029702;
+	}
+
+	if (nAction & ACB_VOLATILE) {		
+		memset(&ba, 0, sizeof(ba));
+
+		ba.Data	  = AllRam;
+		ba.nLen	  = RamEnd - AllRam;
+		ba.szName = "All Ram";
+		BurnAcb(&ba);
+
+		ZetScan(nAction);
+
+		AY8910Scan(nAction, pnMin);
+	}
+
+	if (nAction & ACB_WRITE) {
+		ZetOpen(0);
+		rambankswitch(*DrvZ80RAMBank);
+		rombankswitch(*DrvZ80ROMBank);
+		ZetClose();
+
+		DrvRecalc = 1;
+	}
+
+	return 0;
+}
+
+
+// Wyvern F-0
+
+static struct BurnRomInfo wyvernf0RomDesc[] = {
+	{ "a39_01-1.ic37",	0x4000, 0xa94887ec, 1 | BRF_PRG | BRF_ESS }, //  0 Z80 #0 Code
+	{ "a39_02-1.ic36",	0x4000, 0x171cfdbe, 1 | BRF_PRG | BRF_ESS }, //  1
+	{ "a39_03.ic35",	0x4000, 0x50314281, 1 | BRF_PRG | BRF_ESS }, //  2
+	{ "a39_04.ic34",	0x4000, 0x7a225bf9, 1 | BRF_PRG | BRF_ESS }, //  3
+	{ "a39_05.ic33",	0x4000, 0x41f21a67, 1 | BRF_PRG | BRF_ESS }, //  4
+	{ "a39_06.ic32",	0x4000, 0xdeb2d850, 1 | BRF_PRG | BRF_ESS }, //  5
+
+	{ "a39_16.ic26",	0x4000, 0x5a681fb4, 2 | BRF_PRG | BRF_ESS }, //  6 Z80 #0 Code
+
+	{ "a39_11.ic99",	0x4000, 0xaf70e1dc, 3 | BRF_GRA },           //  7 Sprites
+	{ "a39_10.ic78",	0x4000, 0xa84380fb, 3 | BRF_GRA },           //  8
+	{ "a39_09.ic96",	0x4000, 0xc0cee243, 3 | BRF_GRA },           //  9
+	{ "a39_08.ic75",	0x4000, 0x0ad69501, 3 | BRF_GRA },           // 10
+
+	{ "a39_14.ic99",	0x2000, 0x90a66147, 4 | BRF_GRA },           // 11 Tiles
+	{ "a39_14.ic73",	0x2000, 0xa31f3507, 4 | BRF_GRA },           // 12
+	{ "a39_13.ic100",	0x2000, 0xbe708238, 4 | BRF_GRA },           // 13
+	{ "a39_12.ic74",	0x2000, 0x1cc389de, 4 | BRF_GRA },           // 14
+
+	{ "a39_mcu.icxx",	0x0800, 0x00000000, 4 | BRF_OPT | BRF_PRG | BRF_NODUMP }, //  15 MCU Code (not dumped)
+};
+
+STD_ROM_PICK(wyvernf0)
+STD_ROM_FN(wyvernf0)
+
+struct BurnDriver BurnDrvWyvernf0 = {
+	"wyvernf0", NULL, NULL, NULL, "1985",
+	"Wyvern F-0\0", NULL, "Taito", "Miscellaneous",
+	NULL, NULL, NULL, NULL,
+	BDF_GAME_WORKING | BDF_ORIENTATION_VERTICAL, 2,  HARDWARE_TAITO_MISC, GBF_VERSHOOT, 0,
+	NULL, wyvernf0RomInfo, wyvernf0RomName, NULL, NULL, Wyvernf0InputInfo, Wyvernf0DIPInfo,
+	DrvInit, DrvExit, DrvFrame, DrvDraw, DrvScan, &DrvRecalc, 0x200,
+	224, 256, 3, 4
+};