Atari System 1 BIOS - mame (0285) machine

MAME: 0285 - Released: 2026-01-29T17:50:05 - Machines: 49616 - rom: 367884 - disk: 1392

machine

• XML • JSON • RUN

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
atarisy1	atari/atarisy1.cpp		yes	no	no	yes	Atari System 1 BIOS	1984	Atari Games

snap

Atari System 1 BIOS png snap

Atari System 1 BIOS jpg snap thumbnail

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems
atarisy1	577	29/12/2025 11:31:16	336	240	96	96	0	Format24bppRgb	305:MAME 0.127u3 (Sep 11 2008)

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	336	240	59.922743	7159090	456	0	336	262	0	240	no

driver

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

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
136032.205.l13	16384	88d0be26	d124045eccc562ff0423b23a240e27ad740fa0c9	maincpu	0	good	no		ttl
136032.206.l12	16384	3c79ef05	20fdca7131478e1ee12691bdafd2d5bb74cbd16f	maincpu	1	good	no		ttl
136032.105.l13	16384	79021d3c	85febd34bcb166fc3326b5e5e4e80e157b660a08	maincpu	0	good	no		ttl1
136032.106.l12	16384	76ee86c4	cbcd424510435a04e9041967a13781fd19b0f2c4	maincpu	1	good	no		ttl1
136032.114.j11	16384	195c54ad	d7cda3cd3db4c6f77074ca05e96ae11b62e048b7	maincpu	0	good	no		lsi
136032.115.j10	16384	7275b4dc	0896ab37ea832a1335046353612c1b4c86d8d040	maincpu	1	good	no		lsi
136032.104.f5	8192	7a29dc07	72ba464da01bd6d3a91b8d9997d5ac14b6f47aad	alpha	0	good	no		ttl
136032.104.f5	8192	7a29dc07	72ba464da01bd6d3a91b8d9997d5ac14b6f47aad	alpha	0	good	no		ttl1
136032.107.b2	8192	7a29dc07	72ba464da01bd6d3a91b8d9997d5ac14b6f47aad	alpha	0	good	no		lsi
136032.101.e3	256	7e84972a	84d422b53547271e3a07342704a05ef481db3f99	motherbrd_proms	0	good	no		ttl
136032.102.e5	256	ebf1e0ae	2d327e78832edd67ca3909c25b8c8c839637a1ed	motherbrd_proms	0	good	no		ttl
136032.103.f7	235	92d6a0b4	0a42a4816c89447b16e1f3245409591efea98a4a	motherbrd_proms	0	good	no		ttl
136032.101.e3	256	7e84972a	84d422b53547271e3a07342704a05ef481db3f99	motherbrd_proms	0	good	no		ttl1
136032.102.e5	256	ebf1e0ae	2d327e78832edd67ca3909c25b8c8c839637a1ed	motherbrd_proms	0	good	no		ttl1
136032.103.f7	235	92d6a0b4	0a42a4816c89447b16e1f3245409591efea98a4a	motherbrd_proms	0	good	no		ttl1

chip

type	tag	name	clock
cpu	maincpu	Motorola MC68010	7159090
cpu	audiocpu	MOS Technology 6502	1789772
cpu	pokey	Atari C012294 POKEY	1789772
audio	speaker	Speaker
audio	ymsnd	YM2151 OPM	3579545
audio	pokey	Atari C012294 POKEY	1789772

device_ref

tag	name
:maincpu	m68010
:audiocpu	m6502
:eeprom	2804
:outlatch	ls259
:watchdog	watchdog
:scan_timer	timer
:int3off_timer	timer
:yreset_timer	timer
:gfxdecode	gfxdecode
:palette	palette
:playfield	tilemap
:alpha	tilemap
:mob	atarimo
:screen	screen
:speaker	speaker
:soundlatch	generic_latch_8
:mainlatch	generic_latch_8
:ymsnd	ym2151
:pokey	pokey
:adc	adc0809
:ajsint	ipt_merge_all_hi
:slapstic	slapstic

biosset

name	description	default
ttl	TTL Motherboard (Rev 2)	no
ttl1	TTL Motherboard (Rev 1)	no
lsi	LSI Motherboard	no

sound

channels
1

input

players	coins	service	tilt
1	3	no	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3
joy		2	8	no

port, analog

port_tag	analog_masks
:1820
:F60000
:IN0
:IN1
:IN2
:IN3

dipswitch

Service Mode

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Service Mode	F60000	64

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	64	yes
On	0	no