Zero (bootleg of Defender, set 2) - mame (0286) machine

machine

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name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
zero2	midway/williams.cpp		no	no	no	yes	Zero (bootleg of Defender, set 2)	1980	bootleg (Amtec)	defender	defender

snap

Zero (bootleg of Defender, set 2) png snap

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Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems	PixelSHA1
zero2	995	29/12/2025 11:31:50	292	240	96	96	0	Format24bppRgb	305:MAME 0.154 (Jul 24 2014)	0b7eb11411aabe28154b9bb30fda553dfca9673f

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
15me.1a	4096	9323eee5	727eaf669162a39c763203b925ab6b2cdb4626c1	maincpu	0	good	no
to16.3a	4096	a79213b2	ff9a59cb1d28af396a7b93df82a4bb825581bcce	maincpu	1000	good	no
17m5.4a	4096	16a3c0dd	df11e4c7a62db85638d1fdda3602735b0d3f7f80	maincpu	2000	good	no
21.4c	4096	7ca35cfd	9afa4f6641082f73bfc3e2b800acf82dcc2bafb3	banked	0	good	no
20m5.3b	4096	7473955b	b27515ca3fd2f938706415425226c4d7113eb276	banked	1000	good	no
to19.1b	4096	f2bef850	78e50c790e3a8ebc4b65f2d827be8bd375bf4ef4	banked	2000	good	no
18m5.4b	4096	7e4afe43	7a4f2128e48ed4d5e83885a3a72756822769fe5d	banked	6000	good	no
to4.6b	2048	cb79ae42	d22bef68ef62aa012f1919338a33621138c2278b	soundcpu	f800	good	no

chip

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

device_ref

tag	name
:maincpu	mc6809e
:soundcpu	m6808
:nvram	nvram
:scan_timer	timer
:240_timer	timer
:watchdog	watchdog
:screen	screen
:palette	palette
:speaker	speaker
:dac	mc1408
:mainirq	ipt_merge_any_hi
:soundirq	ipt_merge_any_hi
:pia_0	pia6821
:pia_1	pia6821
:pia_2	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
joy		5	vertical2	no

port, analog

port_tag	analog_masks
:IN0
:IN1
:IN2