laserbat Laser Battle

Immagine gioco: Laser Battle
Available images:

Romset name:
Production year: 1981
Manufacturer: Zaccaria

Game genre: Shooter
Category: Shooter / Field

This machine has the following clones:
 • Lazarian

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: .100u3

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

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

    S2650 ("maincpu")cpu 3579545 Hz
    Signetics 2636 ("pvi1")audio 4772727 Hz
    Signetics 2636 ("pvi2")audio 4772727 Hz
    Signetics 2636 ("pvi3")audio 4772727 Hz
    Speaker ("speaker")audio
    SN76477 ("csg")audio
    TMS3615 ("synth_low")audio 125000 Hz
    TMS3615 ("synth_high")audio 250000 Hz

  • Screens [Show details]

    This machine uses a single screen:
      Graphic type: Raster
      Screen orientation: Horizontal
      Resolution 736 x 247 @ 50.541416 Hz

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

      Joystick [8 ways]
      Joystick [8 ways]
    Number of buttons: 4

  • Dip-switches [Show details]

    Default settings in bold
    Coin A1 Coin/1 Credit
     1 Coin/2 Credits
     1 Coin/3 Credits
     1 Coin/5 Credits
    Coin B1 Coin/2 Credits
     1 Coin/3 Credits
     1 Coin/5 Credits
     1 Coin/7 Credits
    Infinite LivesOff
    Collision DetectionOff
     Very Difficult
    Bonus LifeOff
    Coin C2 Coins/1 Credit
     1 Coin/1 Credit

  • System Configurations [Show details]

    Default settings in bold
    Cabinet Cocktail

  • ROMs (15 of the machine set) [Show details]

    Referred to MAME version: 0.181

    NameSizeCRC32SHA1StatusIn romset
    lb02.7c204823a257cd 08d9e1ff1a5cd8a5e5af6a12ba6104d3b2ccfddf good laserbat
    lb02.6c2048d1d6a67a 727898c733633daffb0193cf4a556f89fe7e8a5a good laserbat
    lb02.5c20488116f1d3 f84ace44434c55ca5d0be9f0beb2d4df75694b2f good laserbat
    lb02.3c2048443ef61e 2849af0551bba7be2b4792739e04f18d6ace254c good laserbat
    lb02.2c20480cb8f5f1 4ce22c5ae277033cb9905339d24cad272a878088 good laserbat
    lb02.7b2048bdc769d1 1291c159e779187efbdc3eb4a59a57d8d25ce08e good laserbat
    lb02.6b20482103646f bbd15a19524aeb8647014914a0b3025a975dfe7c good laserbat
    lb02.5b20483f8c4246 b0d5e3733327140f54ac5a93f3f14d4afe085514 good laserbat
    lb02.3b20483e557d52 860046fcc2d952f3e677e576f1ac23deac2e7caf good laserbat
    lb02.2b204839000248 58c6d1c588f4d1a3f579fe14faa8d2ccdfdc001e good laserbat
    lb02.8g20484bb9f452 1ff4ef94f0da3b59377548f3341b083af83f83c6 good laserbat
    lb02.10g20485fec6517 868e57e8498cf1ab0fa3635845cdb5800fd96855 good laserbat
    lb02.11g2048ceaf00a4 2e789898207caa7619dcbb01f52c3532d1482618 good laserbat
    lb02.14l2048d29962d1 5b6d0856c3ebbd5833b522f7c0240309cf3c9777 good laserbat
    82s100_prom245c3eb562a 65dff81b2e5321d530e5171dab9aa3809ab38b4d baddump laserbat

    :  PARENT Machine
    :  CLONE Machine
    :  BIOS
    :  Device


Laser Battle (c) 1981 Zaccaria.


Main CPU : S2650 (@ 3.579545 Mhz)

Sound Chips : SN76477 (@ 3.579545 Mhz), TMS3615 (@ 250 Khz), TMS3615 (@ 500 Khz)

Screen orientation : Horizontal

Video resolution : 224 x 240 pixels

Screen refresh : 60.00 Hz

Palette colors : 1024

Players : 2

Control : 8-way Joystick

Buttons : 4


This game was manufactured and distributed by Bally Midway in the USA as "Lazarian".


Game's rom.

Giochi Simili

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 laserbat

0.100u3 [Pierpaolo Prazzoli]

Artwork available


- 0.150: Added 3x Signetics 2636 sound.

- 0.136u1: Quench fixed massive slowdown in the Laser Battle driver.

- 0.135u4: Fabio Priuli fixed all sets in drivers using S2636 video chip.

- 0.135u3: Fabio Priuli added driver data struct and save states to Laser Battle driver. Converted Signetics 2636 video chip to be a MAME device and updated drivers using it accordingly.

- 0.129: Aaron Giles fixed a few out-of-bounds errors revealed by randomly initializing auto_malloc() memory. These would manifest themselves as difficult-to-reproduce crashes on some systems. Affects Laser Battle and other drivers.

- 0.111u6: Zsolt Vasvari and Derrick Renaud rewrote the SN76477 emulator from scratch. The main difference between the old one and the new one is that it is based on measurements from a real chip. Also the emulator is fully analog, meaning that timings/frequencies, etc. are based on voltage levels. This gives a much more true-to-life emulation where the weird behavior of the real chip comes emulated for free. The code itself is also a lot simpler and more understandable.

- 12th November 2006: Mr. Do - We have Lazarian, thanks to scans by Aaron Giles, on loan from Tim at and cleanup by Ad_Enuff.

- 0.107u2: Changed S2650 CPU1 clock speed to 3579545 Hz. Replaced the 2x TMS36XX with TMS3615 (250000 Hz + 500000 Hz). Changed VSync to 50Hz.

- 0.105u4: Aaron Giles converted PLD for clone Lazarian to the new binary format. Added pld lz82s100.bin ($0).

- 0.103u4: Pierpaolo Prazzoli fixed Laser Battle/Lazarian - Game now playable. Added new cpu1 rom ($3800) and 82S100 prom.

- 0.100u3: Pierpaolo Prazzoli added Laser Battle (Zaccaria 1981) and clone Lazarian.

- 21st September 2005: Pierpaolo Prazzoli - Laser Battle (Zaccaria 1981) is playable but some enemies' shots are invisible due to wrong colors (prom hasn't been dumped yet). Sound is missing, but schematics are available, so maybe someone can add it.

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