mame (0289) • machine m4 • M-4

machine

• XML • JSON • RUN

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
m4	midw8080/mw8080bw.cpp	m4	no	no	no	yes	M-4	1977	Midway

snap

M-4 png snap

M-4 jpg snap thumbnail

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems	PixelSHA1
m4	1907	29/12/2025 11:31:29	260	224	96	96	0	Format24bppRgb	305:MAME 0.203 (Oct 31 2018)	9c840fe4799bcdd1f75d686b47665bc32643160c

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	260	224	59.541985	4992000	320	0	260	262	0	224	no

driver

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

rom

name	size	crc	sha1	region	offset	status	optional	merge	bios
m4.e	2048	b6983238	3f3b99b33135e144c111d2ebaac8f9433c269bc5	maincpu	1800	good	no
m4.f	2048	9ded9956	449204a50efd3345cde815ca5f1fb596843a30ac	maincpu	1000	good	no
m4.g	2048	0e84b9cb	a7b74851979aaaa16496e506c487a18df14ab6dc	maincpu	800	good	no
m4.h	2048	9ee2a0b5	b81b4001c90ac6db25edd838652c42913022d9a9	maincpu	0	good	no

chip

type	tag	name	clock
cpu	maincpu	Intel 8080	1996800
audio	soundboard:speaker	Speaker
audio	soundboard:samples1	Samples
audio	soundboard:samples2	Samples

device_ref

tag	name
:maincpu	i8080
:screen	screen
:watchdog	watchdog
:mb14241	mb14241
:soundboard	m4_audio
:soundboard:speaker	speaker
:soundboard:samples1	samples
:soundboard:samples2	samples

sample

name
1
1
2
2

sound

channels
1

feature

type	status	overall
sound	imperfect

input

players	coins	service	tilt
2	1	no	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3
joy	1	2	vertical2	no
joy	2	2	vertical2	no

port, analog

port_tag	analog_masks
:IN0
:IN1
:IN2

dipswitch

Coinage

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coinage	IN2	3	IN2	16	eq	16

location

name	number	inverted
C1	1	no
C1	2	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
2 Coins per Player	2	no
2 Coins/1 or 2 Players	3	no
1 Coin per Player	0	yes
1 Coin/1 or 2 Players	1	no

Game Time

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Game Time	IN2	12	IN2	16	eq	16

location

name	number	inverted
C1	3	no
C1	4	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
60 seconds	0	no
70 seconds	4	yes
80 seconds	8	no
90 seconds	12	no

Service Mode

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Service Mode	IN2	16

location

name	number	inverted
C1	5	no

value

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

Extended Play

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Extended Play	IN2	32

location

name	number	inverted
C1	6	no

value

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

Extended Play At

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Extended Play At	IN2	192

location

name	number	inverted
C1	8	no
C1	7	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
70	192	no
80	64	no
100	128	no
110	0	yes