Snake Pit (9/14/84) - mame (0287) machine

machine

• XML • JSON • RUN

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
snakepita	midway/balsente.cpp		no	no	no	yes	Snake Pit (9/14/84)	1984	Sente Technologies Inc.	snakepit	snakepit

snap

Key	Length	LastWriteTime	Width	Height	HorizontalResolution	VerticalResolution	PaletteLength	PixelFormat	PropertyItems	PixelSHA1
snakepita	13994	29/12/2025 11:31:44	256	240	96	96	0	Format24bppRgb	305:MAME 0.250git (23 Nov 2022)	51d314cf11630567e0fbd70026b37ab043ff15b3

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	0	256	240	59.185606	5000000	320	0	256	264	16	256	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
ab0.bin	8192	5aa86081	e65e256661b13a0631398e115dd02fce281bafa4	maincpu	0	good	no	spit-ab0.u9a
ab1.bin	8192	588228b8	b64032a4fd1f52179d38e2073380bba6ec321302	maincpu	2000	good	no	spit-ab1.u8a
ab2.bin	8192	d573e33e	47ff4f2f28f3d1830da82bef09ebc9b4f5cedaa5	maincpu	4000	good	no
ab3.bin	8192	0e3b6cfe	2bac5869d1ed01744a7fc07679fc59307e845f97	maincpu	6000	good	no
ab4.bin	8192	5de588a7	aebd6710bee56fdfa15916404f120469ab710de0	maincpu	8000	good	no
ab5.bin	8192	2a1d9d8f	3364f4bc507576323560bf14fc99036c47d0297c	maincpu	a000	good	no	spit-ab5.u4a
cd.bin	8192	f357172e	822012360526459e85196692e4cb408fe25fb1cc	maincpu	1c000	good	no
ef.bin	8192	5e9d1de2	5a04c4444aed9c2677fc85ad733fec69398403d6	maincpu	1e000	good	no
gr0.bin	8192	f77fd85d	f8e69d1d0030412d6129a8ebfee40b3f1f189d8d	gfx1	0	good	no	spit-gr0.u9b
gr1.bin	8192	3ad10334	1d82a7948fbee627c80a9e03ade90e57972a6a31	gfx1	2000	good	no	spit-gr1.u8b
gr2.bin	8192	24887703	089f077400c9a3e3f5b43e8aa60b41160e296d52	gfx1	4000	good	no	spit-gr2.u7b
gr3.bin	8192	c6703ec2	0f5d7c17ee508f8fea316b7f92cdd7cc174b155f	gfx1	6000	good	no	spit-gr3.u6b
u01508001100b.u20f	260	2d2e2102	de094f9955d6085f1714f1aa7c71e1f047e96c5f	motherbrd_pals	0	good	no	u01508001100b.u20f

chip

type	tag	name	clock
cpu	maincpu	Motorola MC6809E	1250000
cpu	audio6vb:audiocpu	Zilog Z80	4000000
audio	audio6vb:mono	Speaker
audio	audio6vb:noise	MM5837 Digital Noise Stream
audio	audio6vb:ac_noise	RC Filter
audio	audio6vb:cem1	CEM3394 Synthesizer Voice
audio	audio6vb:cem1:vcf	4th order LPF
audio	audio6vb:cem2	CEM3394 Synthesizer Voice
audio	audio6vb:cem2:vcf	4th order LPF
audio	audio6vb:cem3	CEM3394 Synthesizer Voice
audio	audio6vb:cem3:vcf	4th order LPF
audio	audio6vb:cem4	CEM3394 Synthesizer Voice
audio	audio6vb:cem4:vcf	4th order LPF
audio	audio6vb:cem5	CEM3394 Synthesizer Voice
audio	audio6vb:cem5:vcf	4th order LPF
audio	audio6vb:cem6	CEM3394 Synthesizer Voice
audio	audio6vb:cem6:vcf	4th order LPF

device_ref

tag	name
:maincpu	mc6809e
:acia	acia6850
:nov0	x2212
:nov1	x2212
:watchdog	watchdog
:scan_timer	timer
:outlatch	ls259
:screen	screen
:palette	palette
:audio6vb	sente6vb
:audio6vb:audiocpu	z80
:audio6vb:uart	acia6850
:audio6vb:uartclock	clock
:audio6vb:8253_0_timer	timer
:audio6vb:pit	pit8253
:audio6vb:pit:counter0	pit_counter
:audio6vb:pit:counter1	pit_counter
:audio6vb:pit:counter2	pit_counter
:audio6vb:mono	speaker
:audio6vb:noise	mm5837_stream
:audio6vb:ac_noise	filter_rc
:audio6vb:cem1	cem3394
:audio6vb:cem1:vcf	va_lpf4
:audio6vb:cem2	cem3394
:audio6vb:cem2:vcf	va_lpf4
:audio6vb:cem3	cem3394
:audio6vb:cem3:vcf	va_lpf4
:audio6vb:cem4	cem3394
:audio6vb:cem4:vcf	va_lpf4
:audio6vb:cem5	cem3394
:audio6vb:cem5:vcf	va_lpf4
:audio6vb:cem6	cem3394
:audio6vb:cem6:vcf	va_lpf4

sound

channels
1

input

players	coins	service	tilt
1	2	no	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3
joy		1	8	no
trackball				yes	0	255	100	20

port, analog

port_tag	analog_masks
:AN0
:AN1
:AN2	255
:AN3	255
:IN0
:IN1
:SWG
:SWH

dipswitch

Service Mode

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Service Mode	IN0	128

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	128	yes
On	0	no

Bonus Life

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Bonus Life	SWG	3

location

name	number	inverted
G1	1	no
G1	2	no

value

name	value	default
Every 10,000	0	yes
Every 15,000	1	no
Every 20,000	2	no
Every 25,000	3	no

Lives

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Lives	SWG	12

location

name	number	inverted
G1	3	no
G1	4	no

value

name	value	default
2	0	no
3	4	yes
4	8	no
5	12	no

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	SWG	16

location

name	number	inverted
G1	5	no

value

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

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	SWG	32

location

name	number	inverted
G1	6	no

value

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

Difficulty

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Difficulty	SWG	64

location

name	number	inverted
G1	7	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Easy	64	yes
Hard	0	no

Demo Sounds

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Demo Sounds	SWG	128

location

name	number	inverted
G1	8	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	128	no
On	0	yes

Coinage

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coinage	SWH	3

location

name	number	inverted
H1	1	no
H1	2	no

value

name	value	default
2 Coins/1 Credit	2	no
1 Coin/1 Credit	3	yes
1 Coin/2 Credits	1	no
Free Play	0	no

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	SWH	4

location

name	number	inverted
H1	3	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	4	yes
On	0	no

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	SWH	8

location

name	number	inverted
H1	4	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	8	yes
On	0	no

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	SWH	16

location

name	number	inverted
H1	5	no

value

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

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	SWH	32

location

name	number	inverted
H1	6	no

value

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

Unused

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Unused	SWH	64

location

name	number	inverted
H1	7	no

value

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

High Scores

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
High Scores	SWH	128

location

name	number	inverted
H1	8	no

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Keep Top 5	128	yes
Keep All	0	no