800 Fathoms

Immagine gioco: 800 Fathoms
Available images:

Romset name: 800fath.zip
Production year: 1981
Manufacturer: Amenip (US Billiards Inc. license)

Game genre: Shooter
Category: Shooter / Misc. Horizontal

This machine is a clone of:
 • Mariner

This machine works in MAME with problems This machine works in MAME with problems

Overall emulation: Good
Color emulation: Good
Sound emulation: Imperfect
Graphics emulation: Good
Save states: Supported

In MAME since version: .037b02

The MAME driver of this machine is: scramble.cpp - Read the code

 Tech info 
 Hardware of this machine:
  • CHIPs [Show details]

    Z80 ("maincpu")cpu 3072000 Hz
    Speaker ("mono")audio
    AY-3-8910A ("8910.1")audio 1536000 Hz

  • Screens [Show details]

    This machine uses a single screen:
      Graphic type: Raster
      Screen orientation: Vertical
      Resolution 256 x 224 @ 60.606061 Hz

  • Number of players: 2P Alternated
  • Controllers [Show details]

      Joystick [8 ways]
      Joystick [8 ways]
    Number of buttons: 2

  • Dip-switches [Show details]

    Default settings in bold
     Free Play
    Coinage1 Coin/1 Credit
     1 Coin/2 Credits
     1 Coin/3 Credits
     1 Coin/4 Credits

  • ROMs (8 of the parent set, 2 of the clone set) [Show details]

    Referred to MAME version: 0.181

    NameSizeCRC32SHA1StatusIn romset
    tu1.2h40965dd3d42f 887403c385897044e1cb9709ab2b6ff5abdf9eb4 good 800fath
    tm2.2k4096efe7ca28 496f8eb2ebc9edeed5b19d87f437f23bbeb2a007 good mariner
    tm3.2l4096027881a6 47953aa5140a157ade484341609d477510e8342b good mariner
    tm4.2m4096a0fde7dc ea6700520b1bd31e6c6bfac6f067bbf652676eef good mariner
    tu5.2p4096f864a8a6 bd0c84284d13d099da4e139db7c9948a074d6774 good 800fath
    tm8.5f409670ae611f 2686dc6d3910bd58b290d6296f30c552686709f5 good mariner
    tm9.5h40968e4e999e 195e6896ca2f3175137d8c92777ba32c41e835d3 good mariner
    t4.6e32ca42b6dd d1e224e788e3dcf57249e72f03f9fe3fd71e6c12 good mariner
    t6.6p256ad208ccc 66a4122e46467344a7f3ddcc953a5f7f451411fa good mariner
    t5.7p321bd88cff 8d1620386ef654d99c51e489c822eeb2e8a4fe76 good mariner

    :  PARENT Machine
    :  CLONE Machine
    :  BIOS
    :  Device


800 Fathoms (c) 1981 U.S. Billiards.

An old horizontally scrolling shoot'em up with a vertically scrolling background :). The player has to guide a submarine armed with torpedoes and missiles through five levels while fighting different underwater terrors. At the end of each area the boss-submarine appears.


Cabinet dimensions : 67.5'' high x 25.5'' deep x 28'' wide

Weight : 235 lbs

Main CPU : Z80 (@ 3.072 Mhz)

Sound Chips : AY8910 (@ 1.78975 Mhz)

Screen orientation : Vertical

Video resolution : 224 x 256 pixels

Screen refresh : 60.61 Hz

Palette colors : 114

Players : 2

Control : 8-way joystick

Buttons : 2


Licensed from Amenip to U.S. Billiards for US distribution. 800 Fathoms is known outside US as "Mariner".


Game's rom.

Machine's picture.

Warning: information in history.dat can differ from the ones present in the rest of the page (taken from MAME) as they come from a different source

Information on mariner

0.35b1 [Zsolt Vasvari]


* Complete sound (discret components)


- 0.146u1: hap fixed missing sound in Mariner and clone (games have only one 8255).

- 0.145u8: Tafoid fixed crash before OK in Mariner and clone.

- 0.139u3: Changed AY-3-8910A clock speed to 1536000 Hz.

- 0.122u7: RansAckeR verified DIP locations from manuals for clone 800 Fathoms.

- 0.37b16: Changed palettesize from 112 to 114 colors.

- 0.37b2: Added clone 800 Fathoms. Added user1 and user2 prom ($0 - background color and char banking/star placement). Changed palettesize from 106 to 112 colors. Fixed rom names.

- 3rd May 2000: Zsolt Vasvari added another romset of Mariner to the driver.

- 0.35b2: Gerald Vanderick added accurate colors to Mariner. Added prom tm.t4 ($0) and changed palettesize to 106 colors.

- 0.35b1: Zsolt Vasvari added Mariner (Amenip 1981). Known issues: GFX banking not figured out. Sound seems incomplete.

- 12th August 1998: Dumped Mariner.


Other Emulators:

* FB Alpha

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