Area 51: Site 4 (HD Rev 2.01, September 7, 1998) - mame (0281) machine

MAME: 0281 - Released: 2025-09-24T18:40:45 - Machines: 49006 - rom: 365545 - disk: 1378

machine

• XML • JSON • AO

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
a51site4	atari/mediagx.cpp		no	no	no	yes	Area 51: Site 4 (HD Rev 2.01, September 7, 1998)	1998	Atari Games

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	640	240	60.000000	18432000	640	0	640	480	0	240	no

driver

status	emulation	savestate	requiresartwork	unofficial	nosoundhardware	incomplete	cocktail
preliminary	preliminary	unsupported	no	no	no	no

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
a51s4_bios_09-15-98.u1	262144	f8cd6a6b	75f851ae21517b729a5596ce5e042ebfaac51778	bios	0	good	no		new
a51s4_bios_07-11-98.u1	262144	5ee189cc	0b0d9321a4c59b1deea6854923e655a4d8c4fcfe	bios	0	good	no		old
a51s4_bios_04-22-98.u1	262144	2008bfc6	004bec8759fb04d375c6efc49d048693d1f871ee	bios	0	good	no		older
cga.chr	4096	42009069	ed08559ce2d7f97f68b9f540bddad5b6295294dd	gfx1	0	good	no

disk

name	merge	sha1	region	index	writable	status	optional
a51site4-2_01		48496666d1613700ae9274f9a5361ea5bbaebea0	ide:0:hdd	0	yes	good	no

chip

type	tag	name	clock
cpu	maincpu	Cyrix MediaGX	166000000
cpu	dma8237_1	AM9517A	4772727
cpu	dma8237_2	AM9517A	4772727
audio	speaker	Speaker
audio	dac0	DMA-driven DAC
audio	dac1	DMA-driven DAC

device_ref

name
mediagx
pc_lpt
centronics
centronics_printer
printer_image
input_buffer
input_buffer
input_buffer
output_latch
output_latch
pic8259
pic8259
am9517a
am9517a
pit8254
pit_counter
pit_counter
pit_counter
mc146818
kbdc8042
at_keyb
pci_bus_legacy
idectrl32
ata_slot
idehd
harddisk_image
ata_slot
timer
ramdac
screen
gfxdecode
palette
speaker
dmadac
dmadac

biosset

name	description	default
new	v1.0h	no
old	v1.0f	no
older	v1.0d	no

sound

channels
1

device, instance

type	tag	interface	fixed_image	mandatory	name	briefname
printout	lpt0:centronics:printer:printer				printout	prin
harddisk	ide:0:hdd:image	ide_hdd,hdd			harddisk	hard

device, extension

type	tag	interface	fixed_image	mandatory	extension_names
printout	lpt0:centronics:printer:printer				prn
harddisk	ide:0:hdd:image	ide_hdd,hdd			chd, hd, hdv, 2mg, hdi

input

players	coins	service	tilt
3	4	yes	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3	reqbuttons
joy	1	9	5 (half8)	no
keyboard	1	103		no
joy	2	3	5 (half8)	no
joy	3	3	5 (half8)	no

port, analog

port_tag	analog_masks
:IN0
:IN1
:IN2
:IN3
:IN4
:IN5
:IN6
:IN7
:IN8
:at_keyboard:pc_keyboard_0
:at_keyboard:pc_keyboard_1
:at_keyboard:pc_keyboard_2
:at_keyboard:pc_keyboard_3
:at_keyboard:pc_keyboard_4
:at_keyboard:pc_keyboard_5
:at_keyboard:pc_keyboard_6
:at_keyboard:pc_keyboard_7

slot, slotoption

slot_name	slotoption_name	slotoption_devname	slotoption_default
lpt0:centronics	nlq401	nlq401	no
lpt0:centronics	smartboard	centronics_smartboard	no
lpt0:centronics	chessmec	centronics_chessmec	no
lpt0:centronics	samdac	centronics_samdac	no
lpt0:centronics	covox_stereo	covox_stereo	no
lpt0:centronics	adaptator	adaptator_multitap	no
lpt0:centronics	digiblst	cpcdigiblst	no
lpt0:centronics	lx800	lx800	no
lpt0:centronics	jx80	epson_jx80	no
lpt0:centronics	ap2000	ap2000	no
lpt0:centronics	ex800	ex800	no
lpt0:centronics	fx80	epson_fx80	no
lpt0:centronics	rx80	epson_rx80	no
lpt0:centronics	mz1p16	mz1p16	no
lpt0:centronics	covox	covox	no
lpt0:centronics	pl80	comx_pl80	no
lpt0:centronics	lx810l	lx810l	no
lpt0:centronics	p72	p72	no
lpt0:centronics	printer	centronics_printer	yes