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vcircle: MAME ROM Information.


Vicious Circle (c) 1996 Atari Games.

9 characters bearing a "Killer Instinct"-esque look go head-to-head in this Atari fighting game.


Atari Cojag hardware

Main CPU : R3000 (@ 33 Mhz), Jaguar (@ 26 Mhz)

Sound CPU : Jaguar (@ 26 Mhz)

Sound Chips : (2x) DAC

Screen orientation : Horizontal

Video resolution : 336 x 240 pixels

Screen refresh : 60.00 Hz

Palette colors : 65534

Players : 2

Control : 8-way joystick

Buttons : 6


Vicious Circle is an unreleased prototype.


Engineer : Brian McKee


Game's rom.

MAME Info:

0.62 [Aaron Giles]

HardDisk required


- 0.62: Aaron Giles added Vicious Circle (prototype) (Atari 1996).

- 30th October 2002: Aaron Giles sent in the long-delayed Cojag driver, supporting Area 51, Maximum Force and Vicious Circle complete with perfect sound emulation.


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Galactic Warriors




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Dark Edge

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Mutant Fighter

Time Killers

Mighty Warriors

Schmeiser Robo

Superior Soldiers

Survival Arts

Armored Warriors

Blood Storm

Darkstalkers: The Night Warriors

Night Warriors: Darkstalkers' Revenge

Vampire Hunter 2: Darkstalkers Revenge

Vampire Savior: The Lord of Vampire

Vampire Savior 2: The Lord of Vampire

Cyberbots: Fullmetal Madness

Galaxy Fight

Mega Man - The Power Battle

Mega Man 2: The Power Fighters

Mega Man III (PlayChoice-10)

Voltage Fighter

Red Earth

Vicious Circle

Cyber Troopers Virtual-On

Virtual On 2: Oratorio Tangram

Virtual On Oratorio Tangram M.S.B.S.


Super Gem Fighter Mini Mix

Tech Romancer

Touryuu Densetsu Elan-Dore

Heavy Metal Geomatrix

Senko No Ronde

Senko No Ronde Special

Romset: 2048 kb / 4 files / 222.7 zip

Harddisk: 1.02 GB (CYLS: 2112, HEADS: 16, SECS: 63 - Compressed: 532.3)

MAME XML Output:

       <game name="vcircle" sourcefile="jaguar.c">
              <description>Vicious Circle (prototype)</description>
              <manufacturer>Atari Games</manufacturer>
              <rom name="hh" size="524288" crc="7276f5f5" sha1="716287e370a4f300b1743103f8031afc82de38ca" region="user1" offset="0"/>
              <rom name="hl" size="524288" crc="146060a1" sha1="f291989f1f0ef228757f1990fb14da5ff8f3cf8d" region="user1" offset="1"/>
              <rom name="lh" size="524288" crc="be4b2ef6" sha1="4332b3036e9cb12685e914d085d9a63aa856f0be" region="user1" offset="2"/>
              <rom name="ll" size="524288" crc="ba8753eb" sha1="0322e0e37d814a38d08ba191b1a97fb1a55fe461" region="user1" offset="3"/>
              <disk name="vcircle" sha1="bfa79c4cacdc9c2cd6362f62a23056b3e35a2034" region="drive_0" index="0" writable="yes"/>
              <chip type="cpu" tag="maincpu" name="R3041 (big)" clock="40000000"/>
              <chip type="cpu" tag="gpu" name="Jaguar GPU" clock="26000000"/>
              <chip type="cpu" tag="audiocpu" name="Jaguar DSP" clock="26000000"/>
              <chip type="audio" tag="lspeaker" name="Speaker"/>
              <chip type="audio" tag="rspeaker" name="Speaker"/>
              <chip type="audio" tag="dac1" name="DAC"/>
              <chip type="audio" tag="dac2" name="DAC"/>
              <display tag="screen" type="raster" rotate="0" width="360" height="240" refresh="59.922743" pixclock="7159090" htotal="456" hbend="42" hbstart="402" vtotal="262" vbend="17" vbstart="257" />
              <sound channels="2"/>
              <input players="2" buttons="6" coins="4">
                     <control type="joy" ways="8"/>
              <dipswitch name="Service Mode" tag="FAKE0" mask="64">
                     <dipvalue name="Off" value="64" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="0"/>
              <slot name="drive_0">
                     <slotoption name="hdd" devname="hdd" default="yes"/>
              <slot name="drive_1">
                     <slotoption name="hdd" devname="hdd"/>

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