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sidetrac: MAME ROM Information.


Side Track (c) 1979 Exidy.

Side Track is a black & white man-versus-machine game where the goal is to pick up all of the waiting passengers with your train while avoiding the computer-driver 'killer engine' which aims to take you out in a head-on collision. You can control your train via the 'fast' button which allows you to temporarily increase your speed on the tracks. You can also use the joystick to switch between several tracks at various junction points.

Each time you make a complete circuit around the track and pass the start marker on the outside track, another car is added to your train.


Main CPU : M6502 (@ 705.562 Khz)

Sound Chips : Samples (@ 705.562 Khz), DAC

Screen orientation : Horizontal

Video resolution : 248 x 256 pixels

Screen refresh : 57.00 Hz

Palette colors : 8

Players : 1

Control : 4-way joystick

Buttons : 1


Released in April 1979.

Side Track is the first of several games that were developed on a common Exidy platform which would eventually become host to their most popular games. Early revisions of the platform — Side Track included — had custom sound generators tailored for each game, along with a primitive tone generator that could play one of two very short preprogrammed sequences of notes (Later games eventually included a common sound system).


Passengers picked up from the outermost track are worth 10 points.

Passengers picked up from each successive inner track are worth an additional 10 points.

On top of that, passengers picked up when you have additional cars in tow add another 10 points to car.


* Consoles :

Colecovision (Unreleased prototype)


Game's rom.

Machine's picture.

MAME Info:

0.34b2 [Al Kossow]

Samples required (Targ)


- The original ROM images for Side Track (c) 1979 Exidy have been made available for free, non-commercial use. Authorization from H.R. Kaufmann, president of Xidy.


- 0.129: MooglyGuy added savestate support to Side Track.

- 0.122u6: Zsolt Vasvari changed description to 'Side Track' as per the title screen.

- 0.115u1: Changed description to 'Side Trak'.

- 0.93: Removed Custom sound.

- 0.34RC1: Howie Cohen added high score saving to Side Track.

- 0.34b4: Added Custom, Samples and DAC sound.

- 0.34b2: Al Kossow added Side Track (Exidy 1979).

- 9th August 1998: Dumped Side Track.


- Switch tracks to avoid crash with killer engine.

- Pass starting point for bonus cars and score.

- Added train cars increases score.

Recommended Games (Train):

Side Track



Super Locomotive

Time Tunnel

Wild Western

Densha de GO!

Densha de GO! 2 Kousoku-hen

Uchuu Tokkyuu Medalian

Romset: 8 kb / 5 files / 5.30 zip

MAME XML Output:

       <game name="sidetrac" sourcefile="exidy.c" sampleof="targ">
              <description>Side Track</description>
              <rom name="stl8a-1" size="2048" crc="e41750ff" sha1="3868a0d7e34a5118b39b31cff9e4fc839df541ff" region="maincpu" offset="2800"/>
              <rom name="stl7a-2" size="2048" crc="57fb28dc" sha1="6addd633d655d6a56b3e509d18e5f7c0ab2d0fbb" region="maincpu" offset="3000"/>
              <rom name="stl6a-2" size="2048" crc="4226d469" sha1="fd18b732b66082988b01e04adc2b1e5dae410c98" region="maincpu" offset="3800"/>
              <rom name="stl9c-1" size="1024" crc="08710a84" sha1="4bff254a14af7c968656ccc85277d31ab5a8f0c4" region="maincpu" offset="4800"/>
              <rom name="stl11d" size="512" crc="3bd1acc1" sha1="06f900cb8f56cd4215c5fbf58a852426d390e0c1" region="gfx1" offset="0"/>
              <sample name="expl"/>
              <sample name="shot"/>
              <sample name="sexpl"/>
              <sample name="spslow"/>
              <sample name="spfast"/>
              <chip type="cpu" tag="maincpu" name="M6502" clock="705562"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="samples" name="Samples"/>
              <chip type="audio" tag="dac" name="DAC"/>
              <display tag="screen" type="raster" rotate="0" width="256" height="256" refresh="59.996811" pixclock="5644500" htotal="336" hbend="0" hbstart="256" vtotal="280" vbend="0" vbstart="256" />
              <sound channels="1"/>
              <input players="1" buttons="1" coins="1">
                     <control type="joy" ways="4"/>
              <dipswitch name="Lives" tag="DSW" mask="3">
                     <dipvalue name="2" value="0" default="yes"/>
                     <dipvalue name="3" value="1"/>
                     <dipvalue name="4" value="2"/>
                     <dipvalue name="5" value="3"/>
              <dipswitch name="Coinage" tag="DSW" mask="12">
                     <dipvalue name="2 Coins/1 Credit" value="8"/>
                     <dipvalue name="1 Coin/1 Credit" value="4" default="yes"/>
                     <dipvalue name="1 Coin/2 Credits" value="0"/>
              <dipswitch name="Top Score Award" tag="DSW" mask="16">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="16" default="yes"/>
              <driver status="imperfect" emulation="good" color="good" sound="imperfect" graphic="good" savestate="supported" palettesize="8"/>

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