Manufacturers

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Alpha One (Vision Electronics)

  1. Game infos
  2. Sound
  3. Driver
  4. Inputs
  5. Controls
  6. Display
  7. Dipswitchs
  8. Roms list
  9. Chips list
  10. Categories
  11. MAMEinfo
  12. History
Download alpha1v.zip (69 KB)
Snapshot

Game infos

Description Alpha One (Vision Electronics)
Name alpha1v
Manufacturer Vision Electronics
Year 1988
Runnable yes
System arcade /
Number of players 2P alt
Added to MAME .112
Romset size 69 KB
Romset file 21 files
Romset zip 24 B
Language English
Genre Shooter

Sound infos

Sound_channels 1

Driver infos

Driver status preliminary
Driver emulation preliminary
Driver color good
Driver sound preliminary
Driver graphic good
Driver cocktail
Driver protection
Driver savestate yes

Inputs infos

Input service no
Input tilt no
Input players 2
Input buttons
Input coins 2

Controls infos

type ways minimum maximum sensitivity keydelta reverse
joy 8 no

Display infos

type rotate flipx width height refresh pixclock htotal hbend hbstart vtotal vbend vbstart
raster 0 no 240 256 56.737589 6144000 384 136 376 282 16 272

Dipswitchs

Roms list

console name bios size crc md5 merge sha1 region offset status optional
arcade 1-a1 4096 9e07fdd5 ed4f462fcfe91fa8e88bfeaaba0a0c11fa0b4601 irem_audio:iremsound 7000 good no
arcade 10-lm3 4096 9dde3a75 293d093485be19bfb20685d76a08ac78e24062bf gfx5 0 good no
arcade 11-k3 4096 7659440a 2efd27c82913513dd03e799f1ed3c10b0863677d gfx3 0 good no
arcade 12-jh3 4096 7659440a 2efd27c82913513dd03e799f1ed3c10b0863677d gfx3 0 good no
arcade 13-f3 4096 4b799229 42cbdcf787b08b041d30504d699a12c378224933 gfx1 1000 good no
arcade 14-e3 4096 cf00c737 415e90289039cac4d04cb1d559f1378ca6a32132 gfx1 0 good no
arcade 15-n3 4096 dc26df76 dd1cff7935f5559f9d1b440e02d5e5aa521b0054 gfx2 0 good no
arcade 16-l3 4096 39b9863b da9da9a1066188f050c422dfed1bbbd3ba612ccc gfx2 1000 good no
arcade 17-k3 4096 cfd90773 052e126888b6de636db9c521a090699c282b620b gfx2 2000 good no
arcade 18s030-m1 32 6a57eff2 2d1c12dab5915da2ccd466e39436c88be434d634 proms 200 good no
arcade 2-m3 4096 3a679d34 1a54a43070c56dc91d4d258f29e29613bb309f1c maincpu 0 good no
arcade 3-l3 4096 2f09df64 e91602e9e41ad24dd1d7f384ed81b9bdaadd03e1 maincpu 1000 good no
arcade 4-k3 4096 64fb9c8a 735fd00cc42193a417e6cde75f12b4cf2e804942 maincpu 2000 good no
arcade 5-j3 4096 d1643d18 7c794b82e17e2ba0a6237e3fc20d8314f6c2481c maincpu 3000 good no
arcade 6-h3 4096 cf34ab51 3696da71e2bc7edd1ee7aeaac87be5386608c09e maincpu 4000 good no
arcade 63s481-a2 512 58678ea8 b13a78a5bca8ad5bdec1293512b53654768a7a7a proms 0 good no
arcade 7-f3 4096 99db9781 a56a675cc4cbc9681bfe8052f51f19336eb2a0a6 maincpu 5000 good no
arcade 7a e3 4096 3b0b4b0d 0d8eea1e2db269943611289b3490a578ee347f85 maincpu 6000 good no
arcade 9-n3 4096 0fdb7d13 e828254a4f94df633d338b5772719276d41c6b7f gfx4 0 good no
arcade mb7051-f1 32 d8bdd0df ca522428927911808214d319af314f601497ded4 proms 220 good no
arcade mb7052-h2 256 ce9f0ef9 3afb94ed033f272983bbed22a59856df7824ef8a proms 240 good no

Chips list

name tag type clock
AY-3-8910A irem_audio:ay_45l audio 894886
DISCRETE irem_audio:filtermix audio
M6803 irem_audio:iremsound cpu 3579545
MSM5205 irem_audio:msm1 audio 384000
Speaker irem_audio:mono audio
Z80 maincpu cpu 3072000

Categories

MAMEinfo

0.112 [Gareth Hall]


WIP:

- 0.184: Robbbert adjusted Alpha One screen size. Changed visible area to 240x256.

- 0.147u1: Changed description to 'Alpha One (Vision Electronics)'.

- 0.135u1: Fabio Priuli added driver data struct and save state support to M52 driver.

- 0.124u5: Couriersud added discrete mixing and filtering to IREM games using M52-sound-c boards. Replaced 2nd MSM5205 sound with Discrete.

- 0.123u2: Stephane Humbert fixed dipswitches and inputs for Alpha One. The game is now more playable to me but I left the GAME_NOT_WORKING flag as I think there are still some things to look at. Added dipswitches 'Allow Continue' and 4x 'Unused'.

- 0.122u8: Fixed cpu2 rom address to $7000. Changed palettesize to 588 colors.

- 0.122u7: MPatrol driver cleanup [Aaron Giles]: Merged memory maps. Complete memory map. Correct video timing. Correct CPU clocks. Replaced protection hack with actual implementation. Cleaned up inputs. Changed M6803 CPU2 clock speed to 3579545 Hz, visible area to 240x252 and VSync to 56.737589 Hz. Removed 3rd coin slot.

- 0.112: Gareth Hall added 'Alpha One' (Vision Electronics / Kyle Hodgetts 1988).

- 1st February 2007: David Haywood - Guru Choc dumped the roms for a Kyle Hodgett game called Alpha One. It runs on Moon Patrol Hardware. Emulation isn't complete yet.


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History


Arcade Video game published 31 years ago:

Alpha One (c) 1988 Vision Electronics.

- TECHNICAL -

Main CPU : Zilog Z80, M6803
Sound Chips : (2x) General Instrument AY8910, (2x) MSM5205

Players : 2
Buttons : 2

- STAFF -

Programmed by : Kyle Hodgetts, Tony Windsor

- CONTRIBUTE -

Edit this entry: https://www.arcade-history.com/?&page=detail&id=11063&o=2