Zero (bootleg of Defender, set 1) - mame (0280) machine

MAME: 0280 - Released: 2025-08-29T22:26:57 - Machines: 48893 - rom: 364836 - disk: 1378

machine

• XML • JSON • AO

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
zero	midway/williams.cpp		no	no	no	yes	Zero (bootleg of Defender, set 1)	1980	bootleg (Jeutel)	defender	defender

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	292	240	60.096154	8000000	512	12	304	260	7	247	no

driver

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

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
zero-15	4096	706a24bd	60cef3d4f7204eff42de2c08244863e83bc842b4	maincpu	0	good	no
zero-16	4096	a79213b2	ff9a59cb1d28af396a7b93df82a4bb825581bcce	maincpu	1000	good	no
zero-17	4096	25287eca	ec81181a5a0ac2adf7c0dabbec638f886c13e6ec	maincpu	2000	good	no
zero-21	4096	7ca35cfd	9afa4f6641082f73bfc3e2b800acf82dcc2bafb3	banked	0	good	no
zero-20	4096	0757967f	445e399f1fc834a9333549440171beb6e19a24a7	banked	1000	good	no
zero-19	4096	f2bef850	78e50c790e3a8ebc4b65f2d827be8bd375bf4ef4	banked	2000	good	no
zero-18	4096	e99d5679	b4344a32aed6cc64284661c03993a59718289c82	banked	6000	good	no
video_sound_rom_1.ic12	2048	fefd5b48	ceb0d18483f0691978c604db94417e6941ad7ff2	soundcpu	f800	good	no	video_sound_rom_1.ic12

chip

type	tag	name	clock
cpu	maincpu	Motorola MC6809E	1000000
cpu	soundcpu	Motorola MC6808	3579545
audio	speaker	Speaker
audio	dac	MC1408 DAC

device_ref

name
mc6809e
m6808
nvram
timer
timer
watchdog
screen
palette
speaker
mc1408
ipt_merge_any_hi
ipt_merge_any_hi
pia6821
pia6821
pia6821

sound

channels
1

input

players	coins	service	tilt
1	3	yes	yes

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3	reqbuttons
joy		5	vertical2	no

port, analog

port_tag	analog_masks
:IN0
:IN1
:IN2