Space Invaders Part Four (bootleg of Space Attack II) - mame (0287) machine

machine

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name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
invader4	midw8080/8080bw.cpp		no	no	no	yes	Space Invaders Part Four (bootleg of Space Attack II)	1980	bootleg	invaders	invaders

snap

Space Invaders Part Four (bootleg of Space Attack II) png snap

Space Invaders Part Four (bootleg of Space Attack II) jpg snap thumbnail

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems	PixelSHA1
invader4	1600	29/12/2025 11:31:24	224	260	96	96	0	Format24bppRgb	305:MAME 0.125u4 (Jun 6 2008)	19c8e982b56b538bda196d81ea0c2bc2e4f6c59e

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	270	260	224	59.541985	4992000	320	0	260	262	0	224	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
spin4.a	2048	bb386dfe	cc00f3e4f6ca4c05bae038a24ccdb213fb951cfc	maincpu	0	good	no
spin4.b	2048	63afa11d	d8cedfa010a49237e31f6ebaed35134cb1c3ce68	maincpu	800	good	no
spin4.c	2048	22b0317c	8fd037bf5f89a7bcb06042697410566d5180912a	maincpu	1000	good	no
spin4.d	2048	9102fd68	3523e69314844fcd1863b1e9a9d7fcebe9ee174b	maincpu	1800	good	no

chip

type	tag	name	clock
cpu	maincpu	Intel 8080	1996800
audio	soundboard:mono	Speaker
audio	soundboard:snsnd	TI SN76477 CSG
audio	soundboard:discrete	Discrete Sound

device_ref

tag	name
:maincpu	i8080
:screen	screen
:watchdog	watchdog
:mb14241	mb14241
:soundboard	invaders_audio
:soundboard:mono	speaker
:soundboard:snsnd	sn76477
:soundboard:discrete	discrete

sound

channels
1

input

players	coins	service	tilt
2	1	no	yes

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3
joy	1	1	2	no
joy	2	1	2	no

port, analog

port_tag	analog_masks
:CAB
:CONTP1
:CONTP2
:IN0
:IN1
:IN2

dipswitch

Difficulty

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Difficulty	IN0	4

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Easy	0	yes
Hard	4	no

Lives

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Lives	IN2	3

location

name	number	inverted
SW1	1	no
SW1	2	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
3	0	yes
4	1	no
5	2	no
6	3	no

Bonus Life

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Bonus Life	IN2	8

location

name	number	inverted
SW1	4	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
1000	8	no
1500	0	yes

Unknown

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unknown	IN2	16

location

name	number	inverted
SW1	5	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	0	yes
On	16	no

Unknown

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unknown	IN2	32

location

name	number	inverted
SW1	6	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	0	yes
On	32	no

Unknown

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unknown	IN2	64

location

name	number	inverted
SW1	7	no

value

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

Coinage

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coinage	IN2	128

location

name	number	inverted
SW1	8	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
2 Coins/1 Credit	128	no
1 Coin/1 Credit	0	yes