Prize Space Invaders (BWB IN2, £20, 50p/30p Play, 20" Version 1.1) (MPU4 Video)

machine

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name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
v4psi	barcrest/mpu4vid.cpp		no	no	no	yes	Prize Space Invaders (BWB IN2, £20, 50p/30p Play, 20" Version 1.1) (MPU4 Video)	1991	BWB

snap

Prize Space Invaders (BWB IN2, £20, 50p/30p Play, 20

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems	PixelSHA1
v4psi	3033	29/12/2025 11:31:49	504	296	96	96	0	Format24bppRgb	305:MAME 0.234 (Jul 28 2021)	0a8aa6364e006ba7a994d65f12e16206f6a00e24

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	504	296	49.920128	10000000	640	0	504	313	0	296	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
in220mpu4.p1	16384	75ff4b1f	a3adaad9a91c30fe6ff42dc2003c34a199b28807	maincpu	0	good	no
in2-20p1.1	65536	f34d9001	2bae06f4a5a5510b15b918261ecb0de9e34a6b53	video	0	good	no
in2-20p1.2	65536	1dc931b4	c46626183edd52c7938c5edee2395aacb49e0730	video	1	good	no
in2-20p1.3	65536	107aa448	7b3d4053aaae3b97136cddefbc9edd5e61713ff7	video	20000	good	no
in2-20p1.4	65536	04933278	97462aef782f7fe82b60f4bddcad0e6a6b50f3df	video	20001	good	no

chip

type	tag	name	clock
cpu	maincpu	Motorola MC6809	6880000
cpu	video	Motorola MC68000	10000000
audio	ay8913	AY-3-8913 PSG	1720000
audio	mono	Speaker
audio	alarmdac	1-Bit DAC
audio	speaker	Speaker
audio	saa	Philips SAA1099	8000000

device_ref

tag	name
:maincpu	mc6809
:ay8913	ay8913
:nvram	nvram
:50hz	timer
:vfd	msc1937
:ptm_ic2	ptm6840
:pia_ic3	pia6821
:pia_ic4	pia6821
:pia_ic5	pia6821
:pia_ic6	pia6821
:pia_ic7	pia6821
:pia_ic8	pia6821
:meters	meters
:dataport	bacta_datalogger
:hopper	coin_hopper
:mono	speaker
:alarmdac	dac
:screen	screen
:gfxdecode	gfxdecode
:scn2674_vid	scn2674
:video	m68000
:palette	palette
:ef9369	ef9369
:6840ptm_68k	ptm6840
:speaker	speaker
:saa	saa1099
:acia6850_0	acia6850
:acia6850_1	acia6850

sound

channels
2

input

players	coins	service	tilt
1	5	yes	no

control

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

port, analog

port_tag	analog_masks
:AUX1
:AUX2
:BLACK1
:BLACK2
:DIL1
:DIL2
:ORANGE1
:ORANGE2
:hopper:TEST

dipswitch

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	DIL1	1

location

name	number	inverted
DIL1	1	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	0	yes
On	1	no

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	DIL1	2

location

name	number	inverted
DIL1	2	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	0	yes
On	2	no

High Token Payout Proportion

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
High Token Payout Proportion	DIL1	4

location

name	number	inverted
DIL1	3	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
No	0	yes
Yes	4	no

Low Token Payout Proportion

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Low Token Payout Proportion	DIL1	8

location

name	number	inverted
DIL1	4	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
No	0	yes
Yes	8	no

Target Percentage (if key not fitted)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Target Percentage (if key not fitted)	DIL1	240

location

name	number	inverted
DIL1	5	no
DIL1	6	no
DIL1	7	no
DIL1	8	no

value

name	value	default
Unset (Program Optimum)	0	yes
70	16	no
72	32	no
74	48	no
76	64	no
78	80	no
80	96	no
82	112	no
84	128	no
86	144	no
88	160	no
90	176	no
92	192	no
94	208	no
96	224	no
98	240	no

Coin Alarm Inhibit

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coin Alarm Inhibit	DIL2	1

location

name	number	inverted
DIL2	1	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	0	yes
On	1	no

Allow Multiple Credits

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Allow Multiple Credits	DIL2	2

location

name	number	inverted
DIL2	2	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Yes	0	yes
No	2	no

Payout when Empty?

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Payout when Empty?	DIL2	4

location

name	number	inverted
DIL2	3	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Yes	0	yes
No	4	no

Bank Win

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Bank Win	DIL2	8

location

name	number	inverted
DIL2	4	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Yes	0	yes
Pay Live	8	no

Collect Mode

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Collect Mode	DIL2	16

location

name	number	inverted
DIL2	5	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Credit and Bank	0	yes
Bank Only	16	no

Hall of Fame Entry

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Hall of Fame Entry	DIL2	32

location

name	number	inverted
DIL2	6	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Full Names	0	yes
Initials	32	no

Long Game

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Long Game	DIL2	64

location

name	number	inverted
DIL2	7	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
No	0	yes
Yes	64	no

Clear MPU Memory

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Clear MPU Memory	DIL2	128

location

name	number	inverted
DIL2	8	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
No	0	yes
Yes	128	no

clones

name	description
v4psi14	Prize Space Invaders (BWB IN2, £20, 50p/30p Play, 14" Version 1.1, set 1) (MPU4 Video)
v4psi14a	Prize Space Invaders (BWB IN2, £20, 50p/30p Play, 14" Version 1.1, set 2) (MPU4 Video)
v4psid	Prize Space Invaders (BWB IN2, £20, 50p/30p Play, 20" Version 1.1) (Datapak) (MPU4 Video)
v4psibcd	Prize Space Invaders (BWB INV1, 50p/30p Play, Version 1.2) (Datapak) (MPU4 Video)
v4psibc	Prize Space Invaders (BWB INV1, 50p/30p Play, Version 1.2) (MPU4 Video)

Prize Space Invaders (BWB IN2, £20, 50p/30p Play, 20" Version 1.1) (MPU4 Video) - mame (0287) machine

machine

snap

display

driver

rom

chip

device_ref

sound

input

control

port, analog

dipswitch

Unused

location

value

Unused

location

value

High Token Payout Proportion

location

value

Low Token Payout Proportion

location

value

Target Percentage (if key not fitted)

location

value

Coin Alarm Inhibit

location

value

Allow Multiple Credits

location

value

Payout when Empty?

location

value

Bank Win

location

value

Collect Mode

location

value

Hall of Fame Entry

location

value

Long Game

location

value

Clear MPU Memory

location

value

clones