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showdown: MAME ROM Information.


History:

Showdown (c) 1988 Exidy.


- TECHNICAL -


Exidy 440 hardware


Main CPU : M6809 (@ 1.6224 Mhz)

Sound CPU : M6809 (@ 811.2 Khz)

Sound Chips : Custom (@ 50.7 Khz)


Screen orientation : Horizontal

Video resolution : 320 x 240 pixels

Screen refresh : 60.00 Hz

Palette Colors : 256


Players : 1

Control : lightgun

Buttons : 8


- TRIVIA -


Released in October 1988.


- STAFF -


Designed and programmed by : Larry Hutcherson, Vic Tolomei, Ken Nicholson


- SOURCES -


Game's rom.

Machine's picture.




MAME Info:

0.35b4 [Aaron Giles]


SETUP/SERVICE MODE:

- Keep P1 button 1 pressed at boot to skip the checks.

- Keep start pressed to enter service mode.


WIP:

- 0.105u2: Don Maeby fixed Showdown start button.

- 0.99u4: David Widel added missing buttons (Action, Bet-All, Gold, Blue, Red, White and Unknown) to Showdown. Added 2x 'Unknown' dipswitches.

- 0.35b4: Aaron Giles added Showdown (version 5.0) (Exidy 1988).

- 20th February 1999: Aaron Giles has submitted the Exidy 440 driver (with Cheyenne, Clay Pigeon, Combat, Crossbow, Showdown and Whodunit).

- 11th February 1999: Dumped Showdown (version 5.0).


Recommended Games (Western):

Gun Fight

Boot Hill

Dead Eye

Sheriff

Indian Battle

Lasso

Pioneer Balloon

Wild Western

The Tin Star

Bank Panic

Cheyenne

Wanted

Wild Gunman (PlayChoice-10)

Gun.Smoke

Express Raider

Iron Horse

Ninja Kazan

Showdown

Yukon

Blood Bros.

Sunset Riders

Sunset Riders (bootleg of Megadrive version)

Heated Barrel

Wild West C.O.W.-Boys of Moo Mesa

Lethal Enforcers II: Gun Fighters

Charlie Ninja

Bang!

Rapid Fire (Western)


Romset: 363 kb / 54 files / 219.8 zip




MAME XML Output:

       <game name="showdown" sourcefile="exidy440.c">
              <description>Showdown (version 5.0)</description>
              <year>1988</year>
              <manufacturer>Exidy</manufacturer>
              <rom name="showda1.bin" size="8192" crc="e4031507" sha1="3d5183cd049be843fd38e3d1bd2d0a305df723bd" region="maincpu" offset="8000"/>
              <rom name="showd3a.bin" size="8192" crc="e7de171e" sha1="881a2b596949de3b4bb1263e2aa08faeb3051a6e" region="maincpu" offset="a000"/>
              <rom name="showd4a.bin" size="8192" crc="5c8683c9" sha1="81d0880fcbd3c1662ea4dd1662d6987adbdb4f71" region="maincpu" offset="c000"/>
              <rom name="showd6a.bin" size="8192" crc="4a408379" sha1="1ec83b7416f948bc31bafa8ddaa87c23490bce16" region="maincpu" offset="e000"/>
              <rom name="showd11e.bin" size="8192" crc="1c6b34e5" sha1="ae5ddd80d5fdc89274f44a30c4ec1aa325b26cc7" region="maincpu" offset="1e000"/>
              <rom name="showd1d.bin" size="8192" crc="db4c8cf6" sha1="11fb37afb87b926f94f23abf90fb537a3a867aec" region="maincpu" offset="20000"/>
              <rom name="showd3d.bin" size="8192" crc="24242867" sha1="aa109231cad5fcb9e24578b567ff0fe50a72be44" region="maincpu" offset="22000"/>
              <rom name="showd4d.bin" size="8192" crc="36f247e9" sha1="749f5ea3307bfc02bced9535ebd733bb1297a0ae" region="maincpu" offset="24000"/>
              <rom name="showd6d.bin" size="8192" crc="c9b14d8d" sha1="48e66f5a4dc63c3948e32aeb0a151c8f9d2082b2" region="maincpu" offset="26000"/>
              <rom name="showd7d.bin" size="8192" crc="fd054cd2" sha1="a7fcedd30c088d2cb9fe013eaa1214b48f3569ab" region="maincpu" offset="28000"/>
              <rom name="showd8d.bin" size="8192" crc="8bf32822" sha1="91a1ab0bc6aac3dfe7b7e60e3d35e7d4909aa09d" region="maincpu" offset="2a000"/>
              <rom name="showd10d.bin" size="8192" crc="a2051da2" sha1="f879459a90a00c9dc4ba0b1e8895bc1352286a8a" region="maincpu" offset="2c000"/>
              <rom name="showd11d.bin" size="8192" crc="0748f345" sha1="c435cd0769aa44162b3f7aa1bc230cadf572ca73" region="maincpu" offset="2e000"/>
              <rom name="showd1c.bin" size="8192" crc="c016cf73" sha1="30221e5f878354933b8caf8c644f2c6f1e5dcd30" region="maincpu" offset="30000"/>
              <rom name="showd3c.bin" size="8192" crc="652503ee" sha1="90c76bb5d59ce0626d1d7f3feaea05ef984f9551" region="maincpu" offset="32000"/>
              <rom name="showd4c.bin" size="8192" crc="b4dab193" sha1="e028d2c865e7607f43bb7b4f2afe75082618a47b" region="maincpu" offset="34000"/>
              <rom name="showd6c.bin" size="8192" crc="a1e6a2b3" sha1="b75a0355e1245a8ca0dc438c66a96c064b7ab40a" region="maincpu" offset="36000"/>
              <rom name="showd7c.bin" size="8192" crc="bc1bea93" sha1="77fcfef6c509186af394f0ad67717c11ca447fb7" region="maincpu" offset="38000"/>
              <rom name="showd8c.bin" size="8192" crc="337dd7fa" sha1="4df916968f5a2e12cdc8bab585f58b6f6a9d2f4c" region="maincpu" offset="3a000"/>
              <rom name="showd10c.bin" size="8192" crc="3ad32d71" sha1="1a032eb136c56b97305e64572730a40c40d9c52b" region="maincpu" offset="3c000"/>
              <rom name="showd11c.bin" size="8192" crc="5fe91932" sha1="f4f880c55e72159a6754f7c939b4dbb16522e3ad" region="maincpu" offset="3e000"/>
              <rom name="showd1b.bin" size="8192" crc="54ff987e" sha1="ea50a6e2b6c409403cec035f96f4672814e153e2" region="maincpu" offset="40000"/>
              <rom name="showd3b.bin" size="8192" crc="e302e915" sha1="cb2413c24503fd2363f6e717e8de558f771427a4" region="maincpu" offset="42000"/>
              <rom name="showd4b.bin" size="8192" crc="1b981516" sha1="16c417c9c1918a00dee976f3513925f8f28e6f41" region="maincpu" offset="44000"/>
              <rom name="showd6b.bin" size="8192" crc="4ee00996" sha1="7201aef40f6ea3b73d0c009117c174f19d97b98e" region="maincpu" offset="46000"/>
              <rom name="showd7b.bin" size="8192" crc="018b7c00" sha1="04879f476687e087d21bd8d5f439f3e45d39d142" region="maincpu" offset="48000"/>
              <rom name="showd8b.bin" size="8192" crc="024fe6ee" sha1="4287091e65c58aec75c54e320c534d41def951f9" region="maincpu" offset="4a000"/>
              <rom name="showd10b.bin" size="8192" crc="0b318dfe" sha1="feb65530ea3aea6b0786875dc48d96e07d579636" region="maincpu" offset="4c000"/>
              <rom name="showd1h.bin" size="8192" crc="6a10ff47" sha1="ee57de74ab9a5cfe5726212a9b905e91e6461225" region="audiocpu" offset="e000"/>
              <rom name="showd2k.bin" size="8192" crc="67a86f7f" sha1="a4f70aab90acd2502e8f3f39efdafcd71b1a22b4" region="cvsd" offset="0"/>
              <rom name="showd2l.bin" size="8192" crc="0bb8874b" sha1="8b643dbd5412a713b3e2831dd1ba2b7d1f613ac2" region="cvsd" offset="2000"/>
              <rom name="showd2m.bin" size="8192" crc="8b77eac8" sha1="d70038cd6655e71c6488c555ecb1d1a424d00d49" region="cvsd" offset="4000"/>
              <rom name="showd2n.bin" size="8192" crc="78e6eed6" sha1="d9218745fc497a67373b0f6fd82caeef33bb4b3e" region="cvsd" offset="6000"/>
              <rom name="showd2p.bin" size="8192" crc="03a13435" sha1="1965d26a2f294e883cc6a13bc89bf0c28e30d28e" region="cvsd" offset="8000"/>
              <rom name="showd2r.bin" size="8192" crc="1b6b7eac" sha1="b30965203807d8b863e8b2863a222d2e614eee2d" region="cvsd" offset="a000"/>
              <rom name="showd2s.bin" size="8192" crc="b88aeb82" sha1="62d87430c7aec1aec892a15e45fb257206d8cf94" region="cvsd" offset="c000"/>
              <rom name="showd2t.bin" size="8192" crc="5c801f4d" sha1="e6dbb2d2815b9d848c0580cff47d1f0d10c1906d" region="cvsd" offset="e000"/>
              <rom name="showd1k.bin" size="8192" crc="4e1f4f15" sha1="cf075e09eaeab1e630b5b2e28c806d4c34eece48" region="cvsd" offset="10000"/>
              <rom name="showd1l.bin" size="8192" crc="6779a745" sha1="de7d8e39f053eaa45238844e477732295d9af494" region="cvsd" offset="12000"/>
              <rom name="showd1m.bin" size="8192" crc="9cebd8ea" sha1="ff8121c16e8fe93a59c49c20459287f6b002bbbc" region="cvsd" offset="14000"/>
              <rom name="showd1n.bin" size="8192" crc="689d8a3f" sha1="aa592b9edcac8d264c9c89871283dfeebce2300e" region="cvsd" offset="16000"/>
              <rom name="showd1p.bin" size="8192" crc="862b350d" sha1="12e6c92ba424df578eac5a820a68aaaffd73c577" region="cvsd" offset="18000"/>
              <rom name="showd1r.bin" size="8192" crc="95b099ed" sha1="1327852712ade3fc96bd8192045c081c4d32f4ba" region="cvsd" offset="1a000"/>
              <rom name="showd1s.bin" size="8192" crc="8f230881" sha1="daa8efc355fb042b2fce89a0d2950a90e56a806f" region="cvsd" offset="1c000"/>
              <rom name="showd1t.bin" size="8192" crc="70e724c7" sha1="df2905f91038693c87452813216aa86bbb81521b" region="cvsd" offset="1e000"/>
              <rom name="xbl.12h" size="256" crc="375c8bfc" sha1="2602dde6961cc6b63d1652e2f3e4cfae2d8a34d9" region="user1" offset="0"/>
              <rom name="xbl.9h" size="256" crc="2e7d5562" sha1="7cd51fad8236b9853eff2eb84b474838ae1b44e8" region="user1" offset="100"/>
              <rom name="xbl.2h" size="256" crc="b078c1e4" sha1="13834da4384ad43bc1671366fd428520cc3d1c1a" region="user1" offset="200"/>
              <rom name="xbl.3k" size="256" crc="016fe2f7" sha1="909f815a61e759fdf998674ee383512ecd8fee65" region="user1" offset="300"/>
              <rom name="xbl.4k" size="256" crc="31a9549c" sha1="5bfba7ef3f3f5fc59bc03feca39bb16d54a92778" region="user1" offset="400"/>
              <rom name="xbl.5k" size="256" crc="1379bb2a" sha1="51e9e21aeb0db8727f58fda708ddea8fb53378d9" region="user1" offset="500"/>
              <rom name="xbl.6k" size="256" crc="588969f7" sha1="316db275c4026e3a24e44f39f160e10189d310a3" region="user1" offset="600"/>
              <rom name="xbl.7k" size="256" crc="eda360b8" sha1="79d84207e28c1289210cebd96abad6cfe1b4c1d0" region="user1" offset="700"/>
              <rom name="xbl.8k" size="256" crc="9d434cb1" sha1="c3390bc1c02fe74ff2067f7fccfd1ad2c30b54a9" region="user1" offset="800"/>
              <chip type="cpu" tag="maincpu" name="M6809" clock="1622400"/>
              <chip type="cpu" tag="audiocpu" name="M6809" clock="811200"/>
              <chip type="audio" tag="lspeaker" name="Speaker"/>
              <chip type="audio" tag="rspeaker" name="Speaker"/>
              <chip type="audio" tag="custom" name="Exidy 440 CVSD" clock="50700"/>
              <display tag="screen" type="raster" rotate="0" width="320" height="240" refresh="60.000000" pixclock="6489600" htotal="416" hbend="0" hbstart="320" vtotal="260" vbend="0" vbstart="240" />
              <sound channels="2"/>
              <input players="1" buttons="8" coins="2">
                     <control type="lightgun" minimum="0" maximum="255" sensitivity="70" keydelta="10"/>
              </input>
              <dipswitch name="Hands" tag="IN0" mask="12">
                     <dipvalue name="1" value="4"/>
                     <dipvalue name="2" value="0" default="yes"/>
                     <dipvalue name="3" value="8"/>
                     <dipvalue name="4" value="12"/>
              </dipswitch>
              <dipswitch name="Difficulty" tag="IN0" mask="48">
                     <dipvalue name="Easy" value="48"/>
                     <dipvalue name="Normal" value="0" default="yes"/>
                     <dipvalue name="Hard" value="16"/>
                     <dipvalue name="Hardest" value="32"/>
              </dipswitch>
              <dipswitch name="Coinage" tag="IN1" mask="15">
                     <dipvalue name="4 Coins/1 Credit" value="3"/>
                     <dipvalue name="3 Coins/1 Credit" value="7"/>
                     <dipvalue name="4 Coins/2 Credits" value="2"/>
                     <dipvalue name="2 Coins/1 Credit" value="11"/>
                     <dipvalue name="3 Coins/2 Credits" value="6"/>
                     <dipvalue name="4 Coins/3 Credits" value="1"/>
                     <dipvalue name="4 Coins/4 Credits" value="0"/>
                     <dipvalue name="3 Coins/3 Credits" value="5"/>
                     <dipvalue name="2 Coins/2 Credits" value="10"/>
                     <dipvalue name="1 Coin/1 Credit" value="15" default="yes"/>
                     <dipvalue name="3 Coins/4 Credits" value="4"/>
                     <dipvalue name="2 Coins/3 Credits" value="9"/>
                     <dipvalue name="2 Coins/4 Credits" value="8"/>
                     <dipvalue name="1 Coin/2 Credits" value="14"/>
                     <dipvalue name="1 Coin/3 Credits" value="13"/>
                     <dipvalue name="1 Coin/4 Credits" value="12"/>
              </dipswitch>
              <dipswitch name="Unknown" tag="IN1" mask="112">
                     <dipvalue name="1" value="112" default="yes"/>
                     <dipvalue name="2" value="96"/>
                     <dipvalue name="3" value="80"/>
                     <dipvalue name="4" value="64"/>
                     <dipvalue name="5" value="48"/>
                     <dipvalue name="6" value="32"/>
                     <dipvalue name="7" value="16"/>
                     <dipvalue name="1/Freeplay" value="0"/>
              </dipswitch>
              <dipswitch name="Unknown" tag="IN1" mask="128">
                     <dipvalue name="Off" value="128" default="yes"/>
                     <dipvalue name="On" value="0"/>
              </dipswitch>
              <driver status="good" emulation="good" color="good" sound="good" graphic="good" savestate="unsupported" palettesize="256"/>
       </game>
 
 


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