Plus Alpha - mame (0280) machine

MAME: 0280 - Released: 2025-08-29T22:26:57 - Machines: 48893 - rom: 364836 - disk: 1378

machine

• XML • JSON • AO

name	sourcefile	sampleof	isbios	isdevice	ismechanical	runnable	description	year	manufacturer	cloneof	romof
plusalph	jaleco/megasys1.cpp		no	no	no	yes	Plus Alpha	1989	Jaleco

display

tag	type	rotate	width	height	refresh	pixclock	htotal	hbend	hbstart	vtotal	vbend	vbstart	flipx
screen	raster	270	256	224	56.191350	6000000	406	0	256	263	16	240	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
pa-rom2.bin	131072	33244799	686fb7fa8a6c25b5aff78bc509f35c69492d7d1e	maincpu	0	good	no
pa-rom1.bin	131072	a32fdcae	c2315a7142e5499e9325f5a8361cb25e83747a3e	maincpu	1	good	no
pa-rom3.bin	65536	1b739835	3aaa9545a7f578a9775311dcd44504870f3b1544	maincpu	40000	good	no
pa-rom4.bin	65536	ff760e80	dd06306a516a2d5e49cf8f2343ddc26405b309a9	maincpu	40001	good	no
pa-rom5.bin	65536	ddc2739b	dee31660428baea44c73dec238ed7f39a6771fe6	audiocpu	0	good	no
pa-rom6.bin	65536	f6f8a167	60d5c9db18d8f6704b68ccde5d026174679cec36	audiocpu	1	good	no
pa-rom11.bin	131072	eb709ae7	434c9da3c79a97ddd9be77908ce65e9efe6c8106	scroll0	0	good	no
pa-rom12.bin	131072	cacbc350	328094a5d067775871f7d69b4c20c40e46b0eaba	scroll0	20000	good	no
pa-rom13.bin	131072	fad093dd	98a42f91d66b990e18f845edc01c23568cbc7a83	scroll0	40000	good	no
pa-rom14.bin	131072	d3676cd1	b805216af1a65c2f19a82aaf3775bbbceb065c7e	scroll0	60000	good	no
pa-rom15.bin	131072	8787735b	9083061ce6de98a611558fc59d1ec37aefc2a2e0	scroll1	0	good	no
pa-rom16.bin	131072	a06b813b	de4fb0f92f9178c2b5f2750d17cfc3da126b23a4	scroll1	20000	good	no
pa-rom17.bin	131072	c6b38a4b	2529ee47324edcdf4cd34c159524f37da08e1099	scroll1	40000	good	no
pa-rom19.bin	65536	39ef193c	93f417a36732ca76d566f2ff2c9ff62e5679da08	scroll2	0	good	no
pa-rom20.bin	131072	86c557a8	a6dfb2aeda07639448a4135d1336019214030fc9	sprites	0	good	no
pa-rom21.bin	131072	81140a88	f31ae208623bdb152888e1ebdd2515f9bcc2fb44	sprites	20000	good	no
pa-rom22.bin	131072	97e39886	89161ae647c835ff24fcb8676f6e1228f9a1fa10	sprites	40000	good	no
pa-rom23.bin	131072	0383fb65	31fa9c9ba57bf3c9ee8e3f5b1b4e28c1a3591a4b	sprites	60000	good	no
pa-rom9.bin	131072	065364bd	bacb268b1c76c286e89eb823d8c3477ec5f2516c	oki1	0	good	no
pa-rom10.bin	131072	395df3b2	6f69b573e997ba4bb5aabf745843921f0866d209	oki1	20000	good	no
pa-rom7.bin	131072	9f5d800e	c0a7bdedc8a1294b8d29f7f6007542ea006e70cb	oki2	0	good	no
pa-rom8.bin	131072	ae007750	b48784fd6bcf205296e3e5b59c258f76da5c2d1b	oki2	20000	good	no
prom.14m	512	1d877538	a5be0dc65dcfc36fbba10d1fddbe155e24b6122f	proms	0	good	no

chip

type	tag	name	clock
cpu	maincpu	Motorola MC68000	6000000
cpu	audiocpu	Motorola MC68000	7000000
audio	speaker	Speaker
audio	ymsnd	YM2151 OPM	3500000
audio	oki1	OKI MSM6295 ADPCM	4000000
audio	oki2	OKI MSM6295 ADPCM	4000000

device_ref

name
m68000
timer
m68000
screen
gfxdecode
palette
ms1_tmap
ms1_tmap
ms1_tmap
speaker
generic_latch_16
generic_latch_16
ym2151
okim6295
okim6295
ms1_gs88000

sound

channels
1

input

players	coins	service	tilt
2	2	no	no

control

type	player	buttons	ways	reverse	minimum	maximum	sensitivity	keydelta	ways2	ways3	reqbuttons
joy	1	2	8	no
joy	2	2	8	no

port, analog

port_tag	analog_masks
:DSW
:P1
:P2
:SYSTEM

dipswitch

Lives

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Lives	DSW	3

value

name	value	default
3	3	yes
4	2	no
5	1	no
Infinite (Cheat)	0	no

Hyper Laser Beams

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Hyper Laser Beams	DSW	4

value

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

Bonus Life

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Bonus Life	DSW	8

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
70k and every 200k	8	yes
100k and 300k Only	0	no

Difficulty

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Difficulty	DSW	48

value

name	value	default
Easy	0	no
Normal	48	yes
Hard	16	no
Hardest	32	no

Cabinet

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Cabinet	DSW	64

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Upright	0	yes
Cocktail	64	no

Flip Screen

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Flip Screen	DSW	128

value

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

Coin A

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coin A	DSW	1792

value

name	value	default
3 Coins/1 Credit	1024	no
2 Coins/1 Credit	512	no
1 Coin/1 Credit	1792	yes
1 Coin/2 Credits	768	no
1 Coin/3 Credits	1280	no
1 Coin/4 Credits	256	no
1 Coin/5 Credits	1536	no
Free Play	0	no

Coin B

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Coin B	DSW	14336

value

name	value	default
4 Coins/1 Credit	0	no
3 Coins/1 Credit	8192	no
2 Coins/1 Credit	4096	no
1 Coin/1 Credit	14336	yes
1 Coin/2 Credits	6144	no
1 Coin/3 Credits	10240	no
1 Coin/4 Credits	2048	no
1 Coin/5 Credits	12288	no

Demo Sounds

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Demo Sounds	DSW	16384

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	0	no
On	16384	yes

Freeze Screen (Cheat)

name	tag	mask	condition_tag	condition_mask	condition_relation	condition_value
Freeze Screen (Cheat)	DSW	32768

value

name	value	default	condition_tag	condition_mask	condition_relation	condition_value
Off	32768	yes
On	0	no