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dblaxle: MAME ROM Information.


Double Axle (c) 1991 Taito America.

Monster Truck racing game.


Taito Z System hardware

Game ID : C78

Main CPU : (2x) 68000 (@ 16 Mhz)

Sound CPU : Z80 (@ 4 Mhz)

Sound Chips : YM2610 (@ 8 Mhz)

Screen orientation : Horizontal

Video resolution : 320 x 240 pixels

Screen refresh : 60.00 Hz

Palette colors : 4096

Players : 1

Control : Steering wheel

Buttons : 6


Released in September 1991.

This game is known in Japan as "Power Wheels".


Game's rom.

Machine's picture.

MAME Info:

0.53 [David Graves]

0.37b11 [David Graves]


- 0.143u4: MASH added missing PORT_TOGGLE to Double Axle gear shifters input.

- 8th June 2009: Guru - Chips for decapping from Double Axle arrived. Thanks to Smitdogg.

- 0.129u6: Mr. Do added built-in layouts for Double Axle.

- 0.129: Smitdogg and Guru fixed some rom names in Double Axle according to the PCB.

- 0.128u4: Added correct YM2610 sample rom (c78-12.33 - 1MB).

- 0.125u9: Changed 'Unknown' dipswitches to 'Unused'.

- 0.124u2: Nicola Salmoria marked one Double Axle rom as BAD_DUMP. Added 4x Volume Filters.

- 0.62: Added dipswitches 'Coinage' and 'Price to Continue'.

- 0.57: Added dipswitches 'Gear shift', 'Player Truck' and 'Back button'.

- 0.53: David Graves added Double Axle (US) (Taito 1991) and clone Power Wheels (Japan).

- 0.37b11: David Graves added Double Axle (US) (Testdriver) and Power Wheels (Japan). Known issues: No road. Wheel control poor-ish. Double Axle has poor sound: One ADPCM rom should be twice as long? In log we saw stuff like this, suggesting extra ADPCM rom needed: YM2610: ADPCM-A end out of range - $001157ff and YM2610: ADPCM-A start out of range - $00111f00. Various sprites go missing e.g. mountains half way through cross country course. Fall off the ledge and crash and you will see the explosion sprites make other mountain sprites vanish, as though their entries in spriteram are being overwritten. Perhaps be an int6 timing/number issue? Offsets of TC0480SCP bg layers correct? No sprite/tile variable priority implemented, I guess it is only sprite/road priority that changes.

LEVELS: 1-2 (time attack - demolition derby)

Other Emulators:

* FB Alpha

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: 9155 kb / 23 files / 4.50 zip

MAME XML Output:

       <game name="dblaxle" sourcefile="taito_z.c">
              <description>Double Axle (US)</description>
              <manufacturer>Taito America Corporation</manufacturer>
              <rom name="c78-41-1.2" size="131072" crc="cf297fe4" sha1="4875de63e8336062c27d83b55938bcb3d08a24a3" region="maincpu" offset="0"/>
              <rom name="c78-43-1.4" size="131072" crc="38a8bad6" sha1="50977a6a364893549d2f7899bbc4e0c67086697e" region="maincpu" offset="1"/>
              <rom name="c78-42-1.3" size="131072" crc="4124ab2b" sha1="96c3b6e01a1823259b3d7ca43e0a8631bfe33d0e" region="maincpu" offset="40000"/>
              <rom name="c78-44-1.5" size="131072" crc="50a55b6e" sha1="62a72d33030d50c157a5cf05f6bdc1b02c9b9ff1" region="maincpu" offset="40001"/>
              <rom name="c78-30-1.35" size="131072" crc="026aac18" sha1="f50873982b4dc0fc822060f4c20c635efdd75d7e" region="sub" offset="0"/>
              <rom name="c78-31-1.36" size="131072" crc="67ce23e8" sha1="983e998a79e3d4376b005c92ded050be236d37cc" region="sub" offset="1"/>
              <rom name="c78-34.c42" size="131072" crc="f2186943" sha1="2e9aed39fddf3aa1db7e20f8a709b6b82cc3e7df" region="audiocpu" offset="0"/>
              <rom name="c78-10.12" size="524288" crc="44b1897c" sha1="7ad179db6d7dfeb139ea13cb4a231f99d177f2b1" region="gfx1" offset="0"/>
              <rom name="c78-11.11" size="524288" crc="7db3d4a3" sha1="fc3c44ed36b212688a5bd8dc61321a994578258e" region="gfx1" offset="1"/>
              <rom name="c78-08.25" size="1048576" crc="6c725211" sha1="3c1765f44fe57b496d305e994516674f71bd4c3c" region="gfx2" offset="0"/>
              <rom name="c78-07.33" size="1048576" crc="9da00d5b" sha1="f6b664c7495b936ce1b99852da45ec92cb37062a" region="gfx2" offset="1"/>
              <rom name="c78-06.23" size="1048576" crc="8309e91b" sha1="3f27557bc82bf42cc77e3c7e363b51a0b119144d" region="gfx2" offset="2"/>
              <rom name="c78-05.31" size="1048576" crc="90001f68" sha1="5c08dfe6a2e12e6ca84035815563f38fc2c2c029" region="gfx2" offset="3"/>
              <rom name="c78-09.12" size="524288" crc="0dbde6f5" sha1="4049271e3738b54e0c56d191889b1aea5664d49f" region="gfx3" offset="0"/>
              <rom name="c78-04.3" size="524288" crc="cc1aa37c" sha1="cfa2eb338dc81c98c637c2f0b14d2baea8b115f5" region="user1" offset="0"/>
              <rom name="c78-12.33" size="1048576" crc="b0267404" sha1="ffd337336ff9b096e3725f733364762f6e6d3fab" region="ymsnd" offset="0"/>
              <rom name="c78-13.46" size="524288" crc="1b363aa2" sha1="0aae3988024654e98cc0c784307b1c329c8f0783" region="ymsnd" offset="100000"/>
              <rom name="c78-14.31" size="524288" crc="9cad4dfb" sha1="9187ef827a3f1bc9233d0e45e72c72c0956c5912" region="ymsnd.deltat" offset="0"/>
              <rom name="c78-25.15" size="65536" crc="7245a6f6" sha1="5bdde4e3bcde8c59dc84478c3cc079d7ef8ee9c5" region="user2" offset="0"/>
              <rom name="c78-15.22" size="256" crc="fbf81f30" sha1="c868452c334792345dcced075f6df69cff9e31ca" region="user2" offset="0"/>
              <rom name="c78-21.74" size="256" crc="2926bf27" sha1="bfbbe6c71bb29a05959f3de0d940816139f9ebfe" region="user2" offset="0"/>
              <rom name="c84-10.16" size="1024" crc="643e8bfc" sha1="a6e6086fb8fbd102e01ec72fe60a4232f5909565" region="user2" offset="0"/>
              <rom name="c84-11.17" size="1024" crc="10728853" sha1="45d7cc8e06fbe01295cc2194bca9586f0ef8b12b" region="user2" offset="0"/>
              <chip type="cpu" tag="maincpu" name="68000" clock="16000000"/>
              <chip type="cpu" tag="audiocpu" name="Z80" clock="4000000"/>
              <chip type="cpu" tag="sub" name="68000" clock="16000000"/>
              <chip type="audio" tag="lspeaker" name="Speaker"/>
              <chip type="audio" tag="rspeaker" name="Speaker"/>
              <chip type="audio" tag="ymsnd" name="YM2610" clock="8000000"/>
              <chip type="audio" tag="2610.1.r" name="Volume Filter"/>
              <chip type="audio" tag="2610.1.l" name="Volume Filter"/>
              <chip type="audio" tag="2610.2.r" name="Volume Filter"/>
              <chip type="audio" tag="2610.2.l" name="Volume Filter"/>
              <display tag="screen" type="raster" rotate="0" width="320" height="240" refresh="60.000000" />
              <sound channels="2"/>
              <input players="1" buttons="6" coins="2" tilt="yes">
                     <control type="joy" ways="2"/>
                     <control type="stick" minimum="0" maximum="255" sensitivity="40" keydelta="10"/>
              <dipswitch name="Unused" tag="DSWA" mask="1">
                     <dipvalue name="Off" value="1" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Gear shift" tag="DSWA" mask="2">
                     <dipvalue name="Normal" value="2" default="yes"/>
                     <dipvalue name="Inverted" value="0"/>
              <dipswitch name="Service Mode" tag="DSWA" mask="4">
                     <dipvalue name="Off" value="4" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Demo Sounds" tag="DSWA" mask="8">
                     <dipvalue name="Off" value="0"/>
                     <dipvalue name="On" value="8" default="yes"/>
              <dipswitch name="Coinage" tag="DSWA" mask="48">
                     <dipvalue name="4 Coins/1 Credit" value="0"/>
                     <dipvalue name="3 Coins/1 Credit" value="16"/>
                     <dipvalue name="2 Coins/1 Credit" value="32"/>
                     <dipvalue name="1 Coin/1 Credit" value="48" default="yes"/>
              <dipswitch name="Price to Continue" tag="DSWA" mask="192">
                     <dipvalue name="3 Coins/1 Credit" value="0"/>
                     <dipvalue name="2 Coins/1 Credit" value="64"/>
                     <dipvalue name="1 Coin/1 Credit" value="128"/>
                     <dipvalue name="Same as Start" value="192" default="yes"/>
              <dipswitch name="Difficulty" tag="DSWB" mask="3">
                     <dipvalue name="Easy" value="2"/>
                     <dipvalue name="Medium" value="3" default="yes"/>
                     <dipvalue name="Hard" value="1"/>
                     <dipvalue name="Hardest" value="0"/>
              <dipswitch name="Multi-machine hookup ?" tag="DSWB" mask="4">
                     <dipvalue name="Off" value="0" default="yes"/>
                     <dipvalue name="On" value="4"/>
              <dipswitch name="Player Truck" tag="DSWB" mask="8">
                     <dipvalue name="Red" value="8" default="yes"/>
                     <dipvalue name="Blue" value="0"/>
              <dipswitch name="Back button" tag="DSWB" mask="16">
                     <dipvalue name="Normal" value="16" default="yes"/>
                     <dipvalue name="Inverted" value="0"/>
              <dipswitch name="Unused" tag="DSWB" mask="32">
                     <dipvalue name="Off" value="32" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Unused" tag="DSWB" mask="64">
                     <dipvalue name="Off" value="64" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Unused" tag="DSWB" mask="128">
                     <dipvalue name="Off" value="128" default="yes"/>
                     <dipvalue name="On" value="0"/>
              <dipswitch name="Steering type" tag="FAKE" mask="16">
                     <dipvalue name="Digital" value="16"/>
                     <dipvalue name="Analogue" value="0" default="yes"/>
              <driver status="imperfect" emulation="good" color="good" sound="good" graphic="imperfect" savestate="supported" palettesize="4096"/>

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