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offroadc1: MAME ROM Information.


Off Road Challenge (c) 1997 Midway Games.


Midway V Unit hardware

Main CPU : TMS32031 (@ 50 Mhz)

Sound CPU : ADSP2105 (@ 10 Mhz)

Sound Chips : DMA-driven (@ 10 Mhz)

Screen orientation : Horizontal

Video resolution : 512 x 400 pixels

Screen refresh : 57.00 Hz

Palette colors : 32768

Players : 2

Control : paddle

Buttons : 6


Released in August 1997.







* New Truck : On the truck selection screen press each of the 3 view buttons or the music button and new trucks will appear.


1. Off Road Challenge (1997)

2. Off Road Thunder (2000)


* Consoles :

Nintendo 64 (1998)


Game's rom.

Machine's picture.

MAME Info:

0.131u4 [Tormod, Smitdogg, Dumping Union]

0.124u1 [Guru]

0.63 [Aaron Giles]


- Has polygon sorting issues, among other problems. Source (ID 02355)


- 30th June 2011: Guru - A Midway Offroad Challenge board came in to be repaired. After fixing it I noticed it was version 1.50 so I dumped it. That was added to the current version of MAME already.

- 0.143: Guru added clone Off Road Challenge (v1.50), not working. Updated Cruis'n USA README to include Off Road Challenge.

- 0.133u1: Renamed (offrodc4) to (offroadc4), (offrodc3) to (offroadc3) and (offrodc1) to (offroadc1).

- 0.131u4: Tormod, Smitdogg and Dumping Union added Off Road Challenge (v1.63). Renamed (offroadc) to (offrodc4).

- 31st May 2009: Smitdogg - Thanks to Tormod we got Offroad Challege 1.63 (the newest revision dumped!).

- 0.124u1: Guru added 'Off Road Challenge (v1.40)' and clone (v1.30). Renamed (offroadc) to (offrodc1). Changed 'Off Road Challenge' to clone 'Off Road Challenge (v1.10)'.

- 0.79u2: Replaced Custom sound with DMA-driven DAC.

- 0.78u4: Changed region cpu2 to sound1.

- 0.77: TMS32031 fixes [Aaron Giles]: Many fixes to the TMS32031 core; Offroad Challenge is almost playable as a result, minus the fact that the clipping plane seems to like clipping out the cars during the race. But the terrain problems are fixed at least.

- 5th November 2003: Aaron Giles improved the TMS32031 core a lot, making Offroad Challenge almost playable (the terrain problems are fixed at least, but the clipping plane seems to like clipping out the cars during the race now).

- 0.74u2: Brake pedal hack removed.

- 0.74: Changed ADSP2105 clock speed to 10MHz.

- 0.63: Aaron Gile added Off Road Challenge (Midway 1997).

- 8th December 2002: Aaron Giles added War Gods (with imperfect sound) and Off Road Challenge (with several in-game problems, but correct sound) to the V-unit driver.

LEVELS: 6 (endless)

Recommended Games (Racing 3):

Drag Race

Sprint 8

Car Jamboree

Zeroize (DECO Cassette)

Buggy Challenge

Demolition Derby

Buggy Boy/Speed Buggy

Turbo Tag


Power Drive

Power Drift

Four Trax

Over Drive

Double Axle

Road Riot 4WD

Road Riot's Revenge

Off Road Challenge

Dirt Devils

Xtreme Rally / Off Beat Racer!

Club Kart: European Session

Romset: 20480 kb / 24 files / 14.7 zip

MAME XML Output:

       <game name="offroadc1" sourcefile="midvunit.c" cloneof="offroadc" romof="offroadc">
              <description>Off Road Challenge (v1.10)</description>
              <rom name="offroadc.u2" merge="offroadc.u2" size="524288" crc="69976e9d" sha1="63c886ac2563c43a10840f49f929f8613cd94de2" region="dcs" offset="0"/>
              <rom name="offroadc.u3" merge="offroadc.u3" size="524288" crc="2db9b548" sha1="4f454a3e6a8851b0ef5d325dd28102d57ea11a11" region="dcs" offset="200000"/>
              <rom name="offroadc.u4" merge="offroadc.u4" size="524288" crc="42bdf9d0" sha1="04add0f0ee7fa61de1913cc0b988345d3d430cde" region="dcs" offset="400000"/>
              <rom name="offroadc.u5" merge="offroadc.u5" size="524288" crc="569cc84b" sha1="08b917cc41fae6b6a3e9d9461a783d3d2865e72a" region="dcs" offset="600000"/>
              <rom name="offroadc.u6" merge="offroadc.u6" size="524288" crc="0896f679" sha1="dde39ef17834256909ef2c9fcd5b5fb9939d5178" region="dcs" offset="800000"/>
              <rom name="offroadc.u7" merge="offroadc.u7" size="524288" crc="fe242d6a" sha1="8fbac22ed23044841f309ce58c5b1affcdd5d114" region="dcs" offset="a00000"/>
              <rom name="offroadc.u8" merge="offroadc.u8" size="524288" crc="5da13f12" sha1="2bb5e929e8bc6c70cb4475024a6b0bb07ac25244" region="dcs" offset="c00000"/>
              <rom name="offroadc.u9" merge="offroadc.u9" size="524288" crc="7ad27f69" sha1="b33665d0593a95b58d529720aae49e90449bf714" region="dcs" offset="e00000"/>
              <rom name="orc-1_1.u10" size="1048576" crc="4729660c" sha1="0baff6a27015f4eb3fe0a981ecbac33d140e872a" region="user1" offset="0"/>
              <rom name="orc-1_1.u11" size="1048576" crc="6272d013" sha1="860121184282627ed692e56a0dafee8b64562811" region="user1" offset="1"/>
              <rom name="orc-1_1.u12" size="1048576" crc="9c8326be" sha1="55f16d14379f57d08ed84d82f9db1a582bc223a1" region="user1" offset="2"/>
              <rom name="orc-1_1.u13" size="1048576" crc="53bbc181" sha1="1ab29a27a216eb09d69a9f3d681865de1a904717" region="user1" offset="3"/>
              <rom name="offroadc.u14" merge="offroadc.u14" size="1048576" crc="1e41d14b" sha1="3f7c5fae1f8b82ddd811720837fa298785a8dd27" region="user1" offset="400000"/>
              <rom name="offroadc.u15" merge="offroadc.u15" size="1048576" crc="654d623d" sha1="a944b8f8d71b099d7b5bbd7df6effb90afc3aec8" region="user1" offset="400001"/>
              <rom name="offroadc.u16" merge="offroadc.u16" size="1048576" crc="259774d8" sha1="90cdf659324b84b3c2c59497cc5611e8f12629a6" region="user1" offset="400002"/>
              <rom name="offroadc.u17" merge="offroadc.u17" size="1048576" crc="50c61434" sha1="52bc603101b4f88b7d892af683b7c8358cabbf4a" region="user1" offset="400003"/>
              <rom name="offroadc.u18" merge="offroadc.u18" size="1048576" crc="015be91c" sha1="1624537068c6bc5fa6235bf0b0343347c337e8d8" region="user1" offset="800000"/>
              <rom name="offroadc.u19" merge="offroadc.u19" size="1048576" crc="cfc6b70e" sha1="8c5ad84c50ca142726db0595153cf04caaabec9c" region="user1" offset="800001"/>
              <rom name="offroadc.u20" merge="offroadc.u20" size="1048576" crc="f48d6e33" sha1="8b9c205e24f217ac110cdd82388c056ebbbb09b0" region="user1" offset="800002"/>
              <rom name="offroadc.u21" merge="offroadc.u21" size="1048576" crc="17794b56" sha1="8bfd8f5b43056bfe7f62524bb8c3a8564a3a9413" region="user1" offset="800003"/>
              <rom name="offroadc.u22" merge="offroadc.u22" size="1048576" crc="f2a6e622" sha1="a7d7004e95b058124cc02e8073dab8fbed8813c5" region="user1" offset="c00000"/>
              <rom name="offroadc.u23" merge="offroadc.u23" size="1048576" crc="1cba6e20" sha1="a7c9c58bfc4d26decb08979d83cccedb27528eb6" region="user1" offset="c00001"/>
              <rom name="offroadc.u24" merge="offroadc.u24" size="1048576" crc="fd3ce11f" sha1="78c65267712488784bc6dc14eef98a90494a9553" region="user1" offset="c00002"/>
              <rom name="offroadc.u25" merge="offroadc.u25" size="1048576" crc="78f8e5db" sha1="7ec2a5add27d66c43ba5cb7182554321007f5798" region="user1" offset="c00003"/>
              <chip type="cpu" tag="maincpu" name="TMS32031" clock="50000000"/>
              <chip type="cpu" tag="dcs" name="ADSP-2105" clock="10000000"/>
              <chip type="audio" tag="mono" name="Speaker"/>
              <chip type="audio" tag="dac" name="DMA-driven DAC"/>
              <display tag="screen" type="raster" rotate="0" width="512" height="400" refresh="57.349016" pixclock="16500000" htotal="666" hbend="0" hbstart="512" vtotal="432" vbend="0" vbstart="400" />
              <sound channels="1"/>
              <input players="1" buttons="11" coins="4" tilt="yes">
                     <control type="paddle" minimum="16" maximum="240" sensitivity="25" keydelta="20"/>
                     <control type="pedal" minimum="0" maximum="255" sensitivity="25" keydelta="20"/>
              <dipswitch name="Unknown" tag="DSW" mask="1">
                     <dipvalue name="Off" value="1" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Shifter" tag="DSW" mask="2">
                     <dipvalue name="Closed" value="2"/>
                     <dipvalue name="Open" value="0" default="yes"/>
              <dipswitch name="Girls" tag="DSW" mask="4">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="4" default="yes"/>
              <dipswitch name="Road Kill" tag="DSW" mask="8">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="8" default="yes"/>
              <dipswitch name="Unknown" tag="DSW" mask="16">
                     <dipvalue name="Off" value="16" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Link" tag="DSW" mask="32">
                     <dipvalue name="Disabled" value="32" default="yes"/>
                     <dipvalue name="Enabled" value="0"/>
              <dipswitch name="Link Machine" tag="DSW" mask="192">
                     <dipvalue name="1" value="192" default="yes"/>
                     <dipvalue name="2" value="128"/>
                     <dipvalue name="3" value="64"/>
                     <dipvalue name="4" value="0"/>
              <dipswitch name="Unknown" tag="DSW" mask="256">
                     <dipvalue name="Off" value="256" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Unknown" tag="DSW" mask="512">
                     <dipvalue name="Off" value="512" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Unknown" tag="DSW" mask="1024">
                     <dipvalue name="Off" value="1024" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Coinage" tag="DSW" mask="63488">
                     <dipvalue name="USA 1" value="63488" default="yes"/>
                     <dipvalue name="German 1" value="61440"/>
                     <dipvalue name="French 1" value="59392"/>
                     <dipvalue name="Canada 1" value="57344"/>
                     <dipvalue name="Swiss 1" value="55296"/>
                     <dipvalue name="Italy 1" value="53248"/>
                     <dipvalue name="UK 1" value="51200"/>
                     <dipvalue name="Spain 1" value="49152"/>
                     <dipvalue name="Australia 1" value="47104"/>
                     <dipvalue name="Japan 1" value="45056"/>
                     <dipvalue name="Taiwan 1" value="43008"/>
                     <dipvalue name="Austria 1" value="40960"/>
                     <dipvalue name="Belgium 1" value="38912"/>
                     <dipvalue name="Sweden 1" value="36864"/>
                     <dipvalue name="Finland 1" value="34816"/>
                     <dipvalue name="Netherlands 1" value="32768"/>
                     <dipvalue name="Norway 1" value="30720"/>
                     <dipvalue name="Denmark 1" value="28672"/>
                     <dipvalue name="Hungary 1" value="26624"/>
              <driver status="preliminary" emulation="preliminary" color="good" sound="good" graphic="good" savestate="supported" palettesize="32768"/>

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